A hinge structure for an electronic device with an outer flexible screen

Abstract

The present invention discloses a hinge structure for an electronic device with an outer flexible screen, comprising a hinge, wherein the hinge comprises a first shrimp shell member, a second shrimp shell member, a third shrimp shell member, a fourth shrimp shell member and a fifth shrimp shell member which can rotate synchronously around respective centers, and a plurality of synchronous motion mechanisms for hinged five shrimp shell members. The present invention provides a plurality of shrimp shell members, and the plurality of shrimp shell members are connected by a plurality of synchronous motion mechanisms with the same structure to realize synchronous rotation of the hinge. The rotating members with the same structure can further simplify the internal structure of the hinge and save the manufacturing cost of the hinge while ensuring the synchronous rotation of each shrimp shell member, and can also invisibly improve the service life of the hinge. The plurality of hinge constraint mechanisms enable the five shrimp shell members to rotate along a specific constraint trajectory and cooperate with the synchronous motion mechanism to realize synchronous linkage between the shrimp shell members. When the device is opened or closed, the total length of the outer side of the shrimp shell member remains unchanged, and it always remains smooth, and supports the flexible screen.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic device components, and in particular to a hinge structure for an electronic device with an outer flexible screen. Background Art

[0002] Flexible screen is a new type of screen. For external flexible screen mobile terminals with flexible screens set on the outside of the mobile terminal, it is necessary to deal with the length change caused by the closing and opening of the hinge. For the middle part of the hinge, some hinges use a structure with multiple supports to achieve support and shape changes when bending and flattening.

[0003] 1) However, when the existing hinge structure rotates, the structure of the rotating component inside the hinge is relatively complex, and the installation of the rotating component inside the hinge is also relatively complicated. During the long-term use of the hinge, the parts inside the complex component are prone to damage, which greatly affects the manufacturing cost and service life of the equipment;

[0004] 2) The existing hinge structure for flexible screens generally has poor linkage feedback in its internal structure when the hinge rotates, and the smoothness of the hinge rotation cannot be guaranteed. The hinge structure for the transmission flexible screen does not have an angle limit function. At the same time, for hinges without a linkage feedback structure, when users open and close the device, excessive force or fast opening and closing speed may cause irreversible damage to the hinge.

[0005] 3) The traditional hinge structure for flexible screens cannot be well closed between each joint when closed, which makes the hinge larger and also forces electronic devices using traditional hinge structures to be unable to be thin and light, affecting the overall appearance of the device and the sales of the device. Summary of the invention

[0006] The purpose of the present invention is to provide a hinge structure for an external flexible screen electronic device to solve the problem that the rotating component structure inside the hinge used in the existing flexible screen device proposed in the above background technology is relatively complex, and the installation of the rotating component inside the hinge is also relatively complicated. During the long-term use of the hinge, the parts inside the complex component are prone to damage, which greatly affects the manufacturing cost and service life of the equipment.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a hinge structure for an electronic device with an outer flexible screen, comprising a hinge, wherein the hinge comprises a first shrimp shell member, a second shrimp shell member, a third shrimp shell member, a fourth shrimp shell member and a fifth shrimp shell member that can rotate synchronously around their respective centers and a plurality of synchronous motion mechanisms for hinge the five shrimp shell members, and the five shrimp shell members are also hinged with a plurality of hinge constraint mechanisms used in conjunction with the synchronous motion mechanisms;

[0008] A first synchronous motion mechanism is fixedly installed on the inner side of one end of the first shrimp shell member by means of screws, and the first shrimp shell member is rotatably connected to the second shrimp shell member and the third shrimp shell member respectively through the first synchronous motion mechanism;

[0009] The second shrimp shell member and the third shrimp shell member are respectively provided with a second synchronous motion mechanism and a third synchronous motion mechanism at one end thereof through screws, and the second synchronous motion mechanism and the third synchronous motion mechanism are arranged in a mirror-symmetrical manner. The second shrimp shell member is rotatably connected to the fourth shrimp shell member and the first shrimp shell member through the second synchronous motion mechanism, and the third shrimp shell member is rotatably connected to the fifth shrimp shell member and the first shrimp shell member through the third synchronous motion mechanism. The synchronous rotation of the five shrimp shell members is achieved through three synchronous motion mechanisms.

[0010] As a preferred technical solution of the present invention, the five shrimp shell members are each composed of a shrimp shell rod member and two shrimp shell end members, the two shrimp shell end members are fixedly connected to the two ends of the corresponding shrimp shell rod members by screws, and a plurality of arc-shaped tile-shaped protrusions for supporting the flexible external screen are fixedly provided on the outer side of each shrimp shell rod member of the five shrimp shell members.

[0011] As a preferred technical solution of the present invention, the hinge constraint mechanism includes a Y-shaped crescent protrusion, a Y-shaped crescent groove and an r-shaped crescent protrusion. The first shrimp shell member is fixedly installed with Y-shaped crescent protrusions at both ends of the shrimp shell rod. The second and third shrimp shell members are fixedly installed with Y-shaped crescent grooves hingedly used with the Y-shaped crescent protrusion at both ends of the shrimp shell rod. The fourth and third shrimp shell members are fixedly installed with r-shaped crescent protrusions at both ends of the shrimp shell rod. The r-shaped crescent protrusion and the Y-shaped crescent protrusion are slidably matched with the rail grooves in the corresponding Y-shaped crescent grooves. The first shrimp shell member, the second shrimp shell member, the third shrimp shell member, the fourth shrimp shell member and the fifth shrimp shell member are subjected to rotational motion along a specific constrained trajectory, and the linkage of the five shrimp shell members is realized in cooperation with multiple synchronous motion mechanisms.

[0012] As a preferred technical solution of the present invention, the three synchronous motion mechanisms all include a Y-shaped boss, and one end of the pin shaft smoothly connected in the through holes on both sides of the Y-shaped boss is rotatably connected with a wing, and one end of the two wing pieces is provided with meshing teeth, and the two wing pieces realize synchronous rotation through the meshing teeth that mesh with each other, and the other ends of the two wing pieces are provided with connecting pin heads of an integrated structure, and the Y-shaped boss of the first synchronous motion mechanism is fixedly installed on the shrimp shell end piece at the end of the first shrimp shell piece by screws, and the connecting pin heads at the ends of the two wing pieces of the first synchronous motion mechanism are slidably connected with the rail groove pieces installed on the shrimp shell end pieces at the ends of the second shrimp shell piece and the third shrimp shell piece respectively, so as to realize the synchronous rotation of the second shrimp shell piece and the third shrimp shell piece with the first shrimp shell piece.

[0013] As a preferred technical solution of the present invention, the Y-shaped boss of the second synchronous motion mechanism is fixedly installed on the shrimp shell end piece at the end of the second shrimp shell piece by screws, and the connecting pin heads at the two wing ends of the second synchronous motion mechanism are slidingly connected with the rail groove parts respectively installed on the shrimp shell end pieces at the ends of the first shrimp shell piece and the fourth shrimp shell piece, so as to realize the synchronous rotation of the first shrimp shell piece and the fourth shrimp shell piece.

[0014] As a preferred technical solution of the present invention, the Y-shaped boss of the third synchronous motion mechanism is fixedly installed on the shrimp shell end piece at the end of the third shrimp shell piece by screws, and the connecting pin heads at the two wing ends of the third synchronous motion mechanism are slidingly connected with the rail groove parts respectively installed on the shrimp shell end pieces at the ends of the first shrimp shell piece and the fifth shrimp shell piece, so as to realize the synchronous rotation of the first shrimp shell piece and the fifth shrimp shell piece.

[0015] As a preferred technical solution of the present invention, the shrimp shell end pieces at both ends of the fourth shrimp shell piece are both installed with left-side shell connecting pieces installed with the left equipment shell, and the shrimp shell end pieces at both ends of the fifth shrimp shell piece are both installed with right-side shell connecting pieces installed with the right equipment shell.

[0016] As a preferred technical solution of the present invention, when the first shrimp shell member, the second shrimp shell member, the third shrimp shell member, the fourth shrimp shell member and the fifth shrimp shell member realize synchronous rotation through three synchronous motion mechanisms and multiple hinge constraint mechanisms, the rotation axis of each shrimp shell member coincides with its center line.

[0017] Compared with the prior art, the invention has the following beneficial effects: the hinge structure for an electronic device with an outer flexible screen according to the invention has the following beneficial effects:

[0018] 1) Through the multiple shrimp shells provided, the multiple shrimp shells realize the synchronous rotation of the hinge through multiple synchronous motion mechanisms with the same structure. The rotating parts with the same structure further simplify the internal structure of the hinge and save the manufacturing cost of the hinge while ensuring the synchronous rotation of each shrimp shell. At the same time, it can also invisibly improve the service life of the hinge. The multiple hinge constraint mechanisms enable the five shrimp shells to rotate in a specific constraint trajectory and cooperate with the synchronous motion mechanism to realize the synchronous linkage between the shrimp shells. When the device is opened or closed, the total length of the outer side of the five shrimp shells remains unchanged, and always remains smooth, and supports the flexible screen;

[0019] 2) By providing a plurality of shrimp shell members, and hingedly connected by a synchronous motion mechanism and a hinge constraint mechanism, the plurality of shrimp shell members can reliably rotate in linkage around their respective centers, while also ensuring the smoothness of the hinge rotation. The two meshing wings of the rotation limiting mechanism can limit the angle of the shrimp shell member during rotation, thereby realizing the angle limit of the device during multiple opening and closing;

[0020] 3) The distance between the components of the synchronous motion mechanism inside the hinge is directly shortened, and the angle is adjusted automatically to absorb this part of the distance. At the same time, the structural parts connected to the synchronous rotation mechanism are not subjected to extrusion or tension. At the same time, when the synchronous rotation mechanism structure is closed, the required Z-direction space is also smaller, saving the internal space of the hinge and meeting the trend of thin and light design of mobile phones. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0022] Figure 2 It is a back structural diagram of the present invention;

[0023] Figure 3 It is a schematic diagram of the structure of the hinge after folding of the present invention;

[0024] Figure 4 For the present invention Figure 1 An enlarged schematic diagram at A;

[0025] Figure 5 It is a schematic diagram of the local structure of the present invention;

[0026] Figure 6 It is a schematic structural diagram of the first synchronous motion mechanism of the present invention.

[0027] In the figure: 1, hinge; 11, first shrimp shell member; 101, meshing teeth; 102, wing; 103, track groove member; 104, Y-shaped boss; 1101, shrimp shell rod member; 1102, shrimp shell end member; 1a, first synchronous motion mechanism; 1b, second synchronous motion mechanism; 1c, third synchronous motion mechanism; 1d, hinge constraint mechanism; 1d1, Y-shaped crescent protrusion member; 1d2, Y-shaped crescent groove member; 1d3, R-shaped crescent protrusion member; 12, second shrimp shell member; 13, third shrimp shell member; 14, fourth shrimp shell member; 15, fifth shrimp shell member; 2, left shell connecting member; 3, right shell connecting member. DETAILED DESCRIPTION

[0028] 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.

[0029] See also Figure 1-6The present invention provides a hinge structure for an electronic device with an outer flexible screen, comprising a hinge 1, wherein the hinge 1 comprises five first shrimp shell members 11, second shrimp shell members 12, third shrimp shell members 13, fourth shrimp shell members 14 and fifth shrimp shell members 15 which can rotate synchronously around their respective centers and a plurality of synchronous motion mechanisms for hingedly connecting the five shrimp shell members, and the five shrimp shell members are further hingedly connected with a plurality of hinge constraint mechanisms 1d used in conjunction with the synchronous motion mechanisms;

[0030] A first synchronous motion mechanism 1a is fixedly installed on the inner side of one end of the first shrimp shell member 11 by means of screws, and the first shrimp shell member 11 is rotatably connected to the second shrimp shell member 12 and the third shrimp shell member 13 respectively through the first synchronous motion mechanism 1a;

[0031] The second shrimp shell member 12 and the third shrimp shell member 13 are respectively installed with the second synchronous motion mechanism 1b and the third synchronous motion mechanism 1c at one end through screws, and the second synchronous motion mechanism 1b and the third synchronous motion mechanism 1c are arranged in mirror symmetry. The second shrimp shell member 12 is rotatably connected to the fourth shrimp shell member 14 and the first shrimp shell member 11 through the second synchronous motion mechanism 1b, and the third shrimp shell member 13 is respectively rotatably connected to the fifth shrimp shell member 15 and the first shrimp shell member 11 through the third synchronous motion mechanism 1c. The synchronous rotation of the five shrimp shell members is achieved through three synchronous motion mechanisms.

[0032] Furthermore, the five shrimp shell members are each composed of a shrimp shell rod member 1101 and two shrimp shell end members 1102. The two shrimp shell end members 1102 are fixedly connected to the two ends of the corresponding shrimp shell rod member 1101 by screws, and a plurality of arc-shaped tile-shaped protrusions for supporting the flexible external screen are fixedly provided on the outer side of each shrimp shell rod member 1101 of the five shrimp shell members. The arc-shaped tile-shaped protrusions can effectively support the flexible screen.

[0033] Further, the hinge restraint mechanism 1d includes a Y-shaped crescent protrusion 1d1, a Y-shaped crescent groove 1d2 and an r-shaped crescent protrusion 1d3, both ends of the shrimp shell rod 1101 of the first shrimp shell member 11 are fixedly installed with the Y-shaped crescent protrusion 1d1, both ends of the shrimp shell rod 1101 of the second shrimp shell member 12 and the third shrimp shell member 13 are fixedly installed with the Y-shaped crescent groove 1d2 hingedly used with the Y-shaped crescent protrusion 1d1, and both ends of the shrimp shell rod 1101 of the fourth shrimp shell member 14 and the third shrimp shell member 13 are fixedly installed with the r-shaped crescent protrusion 1d3. d3, the R-shaped crescent protrusion 1d3 and the Y-shaped crescent protrusion 1d1 slide in cooperation with the corresponding Y-shaped crescent groove 1d2, and the first shrimp shell 11, the second shrimp shell 12, the third shrimp shell 13, the fourth shrimp shell 14 and the fifth shrimp shell 15 are subjected to specific constrained trajectory rotational motion, and the linkage of the five shrimp shells is realized by cooperating with a plurality of synchronous motion mechanisms. The hinge constraint mechanism 1d can also realize the synchronous opening and closing of the first shrimp shell 11, the second shrimp shell 12, the third shrimp shell 13, the fourth shrimp shell 14 and the fifth shrimp shell 15.

[0034] Furthermore, the three synchronous motion mechanisms all include a Y-shaped boss 104, and one end of the pin shaft smoothly connected in the through holes on both sides of the Y-shaped boss 104 is rotatably connected to a wing 102, and one end of the two wing pieces 102 is provided with a meshing tooth 101, and the two wing pieces 102 are synchronously rotated by the meshing teeth 101 that mesh with each other, and the other ends of the two wing pieces 102 are provided with a connecting pin head of an integrated structure, and the Y-shaped boss 104 of the first synchronous motion mechanism 1a is fixedly installed on the first shrimp shell member 1 by screws 1, the connecting pins at the ends of the two wing pieces 102 of the first synchronous motion mechanism 1a are slidably connected with the rail groove pieces 103 respectively installed on the shrimp shell end pieces 1102 at the ends of the second shrimp shell piece 12 and the third shrimp shell piece 13, so as to realize the synchronous rotation of the second shrimp shell piece 12 and the third shrimp shell piece 13 with the first shrimp shell piece 11, and the torque when the meshing teeth 101 of the wing piece 102 of the synchronous motion mechanism are engaged can also limit the angle of the shrimp shell piece when it rotates.

[0035] Furthermore, the Y-shaped boss 104 of the second synchronous motion mechanism 1b is fixedly mounted on the shrimp shell end piece 1102 at the end of the second shrimp shell piece 12 by screws, and the connecting pin heads at the ends of the two wing pieces 102 of the second synchronous motion mechanism 1b are slidingly connected with the rail groove pieces 103 respectively mounted on the shrimp shell end pieces 1102 at the ends of the first shrimp shell piece 11 and the fourth shrimp shell piece 14, thereby realizing the synchronous rotation of the first shrimp shell piece 11 and the fourth shrimp shell piece 14.

[0036] Furthermore, the Y-shaped boss 104 of the third synchronous motion mechanism 1c is fixedly mounted on the shrimp shell end piece 1102 at the end of the third shrimp shell piece 13 by screws, and the connecting pin heads at the ends of the two wing pieces 102 of the third synchronous motion mechanism 1c are slidingly connected with the rail groove pieces 103 respectively mounted on the shrimp shell end pieces 1102 at the ends of the first shrimp shell piece 11 and the fifth shrimp shell piece 15, thereby realizing the synchronous rotation of the first shrimp shell piece 11 and the fifth shrimp shell piece 15.

[0037] Furthermore, the shrimp shell end pieces 1102 at both ends of the fourth shrimp shell piece 14 are both installed with left-side shell connectors 2 installed with the left device shell, and the shrimp shell end pieces 1102 at both ends of the fifth shrimp shell piece 15 are both installed with right-side shell connectors 3 installed with the right device shell. The installed left-side shell connector 2 can be quickly installed with the left device shell, and the installed right-side shell connector 3 can be quickly installed with the right device shell.

[0038] Furthermore, when the first shrimp shell component 11, the second shrimp shell component 12, the third shrimp shell component 13, the fourth shrimp shell component 14 and the fifth shrimp shell component 15 realize synchronous rotation through three synchronous motion mechanisms and multiple hinge constraint mechanisms 1d, the rotation axis of each shrimp shell component coincides with its center line, and each shrimp shell component rotates around its own center. After each shrimp shell component is unfolded and closed, the total length of the position attached to the flexible screen remains unchanged, thereby reducing the tension and pressure on the flexible screen during the movement process.

[0039] Specifically, when the electronic device needs to be turned on, the left device housing and the right device housing are first pulled, and the left device housing drives the fourth shrimp housing member 14 to rotate through the left shell connector 2, and the right device housing drives the fifth shrimp housing member 15 to rotate through the right shell connector 3. When the fourth shrimp housing member 14 rotates, the fourth shrimp housing member 14 generates a force on the first shrimp housing member 11 through the second synchronous motion mechanism 1b, and the connecting pin head at the end of one of the winglets 102 of the second synchronous motion mechanism 1b slides in the track groove member 103 installed on the fourth shrimp housing member 14 to compensate the distance. 02 drives another wing 102 that cooperates with it to rotate through the meshing teeth 101, and the connecting pin head at the end of the rotating wing 102 slides in the track groove part 103 installed on the first shrimp shell part 11, thereby driving the first shrimp shell part 11 to rotate synchronously. When the fifth shrimp shell part 15 rotates, the fifth shrimp shell part 15 also generates a force on the first shrimp shell part 11 through the third synchronous motion mechanism 1c. The connecting pin head at the end of one of the wings 102 of the third synchronous motion mechanism 1c slides in the track groove part 103 installed on the fifth shrimp shell part 15 to compensate for the distance. The wing 102 drives another wing 102 that cooperates with it to rotate through the meshing teeth 101, and the connecting pin head at the end of the rotating wing 102 slides in the track groove part 103 installed on the first shrimp shell part 11, thereby driving the first shrimp shell part 11 to rotate synchronously. The rotating first shrimp shell part 11 can drive the second shrimp shell part 12 and the third shrimp shell part 13 to rotate through the first synchronous motion mechanism 1a. The connecting pin heads at the ends of the two wing pieces 102 of the first synchronous motion mechanism 1a are respectively slid in the track groove part 103 installed on the second shrimp shell part 12 and the third shrimp shell part 13. Sliding, compensating distance, thereby realizing the synchronous rotation of the first shrimp shell member 11, the second shrimp shell member 12, the third shrimp shell member 13, the fourth shrimp shell member 14 and the fifth shrimp shell member 15, and at the same time, the first synchronous motion mechanism 1a, the second synchronous motion mechanism 1b and the third synchronous motion mechanism 1c can provide torque to the first shrimp shell member 11, the second shrimp shell member 12, the third shrimp shell member 13, the fourth shrimp shell member 14 and the fifth shrimp shell member 1 when rotating, and can generate mechanical rotation feedback, and the torque of the meshing teeth 101 of the wing 102 of the synchronous motion mechanism when engaging can also limit the angle of the shrimp shell member when rotating;

[0040] The rotating fourth shrimp shell member 14 and the fifth shrimp shell member 15 have r-shaped crescent protrusions 1d3 fixedly installed at both ends. The r-shaped crescent protrusion 1d3 of the fourth shrimp shell member 14 will slide in the crescent groove on one side of the Y-shaped crescent groove member 1d2 of the second shrimp shell member 12. After the Y-shaped crescent groove member 1d2 of the second shrimp shell member 12 is subjected to force, the crescent groove on the other side of the Y-shaped crescent groove member 1d2 will slide with the crescent protrusion on one side of the Y-shaped crescent protrusion 1d1 on the first shrimp shell member 11 to compensate for the distance. The r-shaped crescent protrusion 1d3 of the fifth shrimp shell member 15 will slide in the crescent groove on one side of the Y-shaped crescent groove member 1d2 of the third shrimp shell member 13. After the Y-shaped crescent groove part 1d2 of the component 13 is subjected to force, the crescent groove on the other side of the Y-shaped crescent groove part 1d2 will slide with the crescent protrusion part 1d1 on the other side of the Y-shaped crescent groove part 1d1 on the first shrimp shell part 11 to compensate the distance, thereby realizing the synchronous linkage between the fourth shrimp shell part 14, the fifth shrimp shell part 15, the second shrimp shell part 12, the third shrimp shell part 13 and the first shrimp shell part 11. Since the R-shaped crescent protrusion part 1d3 and the Y-shaped crescent protrusion part 1d1 of the hinge constraint mechanism 1d slide with the track groove in the corresponding Y-shaped crescent groove part 1d2, the five shrimp shell parts will rotate along a specific constraint trajectory to realize the opening of the device, and the device can be used normally.

[0041] It should be supplemented that when the device is opened or closed, the total length of the outer sides of the first shrimp shell member 11, the second shrimp shell member 12, the third shrimp shell member 13, the fourth shrimp shell member 14 and the fifth shrimp shell member 15 remains unchanged, and always remains smooth, and supports the flexible screen.

[0042] 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.

[0043] 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.

[0044] 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 hinge structure for an outer flexible screen electronic device, characterized in that: The hinge comprises a first shrimp shell member, a second shrimp shell member, a third shrimp shell member, a fourth shrimp shell member and a fifth shrimp shell member which can rotate synchronously around their respective centers and a plurality of synchronous motion mechanisms for hingedly connecting the five shrimp shell members, and the five shrimp shell members are also hingedly connected with a plurality of hinge restraint mechanisms used in conjunction with the synchronous motion mechanisms; A first synchronous motion mechanism is fixedly installed on the inner side of one end of the first shrimp shell member by means of screws, and the first shrimp shell member is rotatably connected to the second shrimp shell member and the third shrimp shell member respectively through the first synchronous motion mechanism; The second shrimp shell member and the third shrimp shell member are respectively provided with a second synchronous motion mechanism and a third synchronous motion mechanism at one end thereof by screws, and the second synchronous motion mechanism and the third synchronous motion mechanism are arranged in mirror symmetry, the second shrimp shell member is rotatably connected to the fourth shrimp shell member and the first shrimp shell member respectively by the second synchronous motion mechanism, the third shrimp shell member is respectively rotatably connected to the fifth shrimp shell member and the first shrimp shell member by the third synchronous motion mechanism, and the synchronous rotation of the five shrimp shell members is realized by the three synchronous motion mechanisms; The five shrimp shell members are each composed of a shrimp shell rod and two shrimp shell end members, the two shrimp shell end members are respectively fixedly connected to the two ends of the corresponding shrimp shell rod by screws, and a plurality of arc-shaped tile-shaped protrusions for supporting the flexible outer screen are fixedly provided on the outer side of each shrimp shell rod of the five shrimp shell members; The hinge constraint mechanism includes a Y-shaped crescent protrusion, a Y-shaped crescent groove and an r-shaped crescent protrusion. Both ends of the shrimp shell rod of the first shrimp shell member are fixedly installed with Y-shaped crescent protrusions. Both ends of the shrimp shell rod of the second shrimp shell member and the third shrimp shell member are fixedly installed with Y-shaped crescent grooves used in conjunction with the Y-shaped crescent protrusion. Both ends of the shrimp shell rod of the fourth shrimp shell member and the third shrimp shell member are fixedly installed with r-shaped crescent protrusions. The r-shaped crescent protrusion and the Y-shaped crescent protrusion are slidably matched with the rail grooves in the corresponding Y-shaped crescent grooves. The first shrimp shell member, the second shrimp shell member, the third shrimp shell member, the fourth shrimp shell member and the fifth shrimp shell member are subjected to rotational motion along a specific constraint trajectory, and the linkage of the five shrimp shell members is realized by cooperating with a plurality of synchronous motion mechanisms. The three synchronous motion mechanisms all include a Y-shaped boss, and one end of the pin shaft smoothly connected in the through holes on both sides of the Y-shaped boss is rotatably connected with a wing, one end of the two wing pieces are provided with meshing teeth, and the two wing pieces realize synchronous rotation through the meshing teeth that mesh with each other, and the other ends of the two wing pieces are provided with a connecting pin head of an integrated structure, and the Y-shaped boss of the first synchronous motion mechanism is fixedly installed on the shrimp shell end piece at the end of the first shrimp shell piece by screws, and the connecting pin heads at the ends of the two wing pieces of the first synchronous motion mechanism are slidably connected with the rail groove pieces respectively installed on the shrimp shell end pieces at the ends of the second shrimp shell piece and the third shrimp shell piece, so as to realize the synchronous rotation of the second shrimp shell piece and the third shrimp shell piece with the first shrimp shell piece.

2. The hinge structure for an electronic device with an outer flexible screen according to claim 1, characterized in that: The Y-shaped boss of the second synchronous motion mechanism is fixedly installed on the shrimp shell end piece at the end of the second shrimp shell piece by screws, and the connecting pin heads at the two wing ends of the second synchronous motion mechanism are slidably connected with the rail groove parts respectively installed on the shrimp shell end pieces at the ends of the first shrimp shell piece and the fourth shrimp shell piece, so as to realize the synchronous rotation of the first shrimp shell piece and the fourth shrimp shell piece.

3. The hinge structure for an electronic device with an outer flexible screen according to claim 1, characterized in that: The Y-shaped boss of the third synchronous motion mechanism is fixedly installed on the shrimp shell end piece at the end of the third shrimp shell piece by screws, and the connecting pin heads at the two wing ends of the third synchronous motion mechanism are slidably connected with the rail groove parts respectively installed on the shrimp shell end pieces at the ends of the first shrimp shell piece and the fifth shrimp shell piece, so as to realize the synchronous rotation of the first shrimp shell piece and the fifth shrimp shell piece.

4. The hinge structure for an electronic device with an outer flexible screen according to claim 1, characterized in that: The shrimp shell end pieces at both ends of the fourth shrimp shell piece are both installed with left shell connectors installed with the left device shell, and the shrimp shell end pieces at both ends of the fifth shrimp shell piece are both installed with right shell connectors installed with the right device shell.

5. The hinge structure for an electronic device with an outer flexible screen according to claim 1, characterized in that: When the first shrimp housing member, the second shrimp housing member, the third shrimp housing member, the fourth shrimp housing member and the fifth shrimp housing member realize synchronous rotation through three synchronous motion mechanisms and multiple hinge constraint mechanisms, the rotation axis of each shrimp housing member coincides with its center line.

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