Flexible screen hinge structure

Abstract

The utility model provides a flexible screen hinge structure. The flexible screen hinge structure comprises a body and a connecting base. The connecting seat is pivoted on the body in a swinging manner through a pivoting shaft; the connecting seat comprises an upper sub-block and a lower sub-block which are separately manufactured; the upper sub-block comprises an upper pivoting part and an upper connecting wing plate which are fixedly connected with each other; the lower sub-block comprises a lower pivoting part and a lower connecting wing plate which are fixedly connected with each other; an upper cam structure is arranged at the top of the upper pivoting part; a lower cam structure is arranged at the bottom of the lower pivoting part; the upper pivoting part and the lower pivoting part are coaxially arranged, and the upper connecting wing plate and the lower connecting wing plate are fixedly connected. The connecting seat is formed by splicing the upper sub-block and the lower sub-block, so that two cam structures can be respectively formed on the two sub-blocks, the manufacturability is stronger, the processing is convenient, the yield is high, and the production cost is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of foldable electronic equipment, and in particular to a flexible screen hinge structure. Background Art

[0002] At present, the folding mechanism of a foldable electronic device usually compresses the locking component through a compression spring, so that the concave-convex structure on the locking component and the cam on the transmission arm continuously slide out and insert to produce a damping feeling, thereby realizing the folding and unfolding of the foldable electronic device. However, as the folding times of the foldable electronic device increase over time, the cam and the concave-convex component will be worn, and the elastic force of the compression spring will gradually decay, thereby weakening the damping feeling of the folding mechanism of the foldable electronic device and making the folding mechanism of the foldable electronic device loose.

[0003] To solve the above problems, the applicant submitted several patent applications for hinge structures with compensation functions. However, during the later research and development process, it was found that the components with both cam structure and gear structure had poor manufacturability and were difficult to process. In addition, they were prone to breakage during the processing, which was not conducive to promotion and implementation. Utility Model Content

[0004] The purpose of the utility model is to provide a flexible screen hinge structure to solve at least one of the above-mentioned technical problems existing in the prior art.

[0005] In order to solve the above technical problems, the utility model provides a flexible screen hinge structure, comprising: a body and a connecting seat; the connecting seat is pivotally connected to the body through a pivot axis;

[0006] The connecting seat comprises an upper block and a lower block which are made separately;

[0007] The upper block comprises an upper pivoting portion and an upper connecting wing plate fixedly connected to each other (preferably the two are made in one piece);

[0008] The lower block comprises a lower pivoting portion and a lower connecting wing plate fixedly connected to each other (preferably the two are made in one piece);

[0009] An upper cam structure is provided at the top of the upper pivoting portion (the side facing away from the lower block);

[0010] A lower cam structure is provided at the bottom of the lower pivot portion (the side facing away from the upper block);

[0011] The upper pivoting portion and the lower pivoting portion are coaxially arranged, and the upper connecting wing plate and the lower connecting wing plate are fixedly connected.

[0012] Furthermore, a gear structure (or tooth structure) is provided on the outer circumference of the upper pivot part or the lower pivot part;

[0013] The main body is rotatably provided with a first gear and a second gear meshing with each other;

[0014] The gear structures on the two connecting seats symmetrically arranged on the left and right are respectively meshed with the first gear and the second gear, so that the two connecting seats are used to rotate synchronously in the same direction or in the opposite direction.

[0015] Furthermore, the gear structure is spaced apart from the upper cam structure or the lower cam structure.

[0016] That is, in the axial direction, the gear structure is not connected to the upper cam structure or the lower cam structure, so as to avoid forcing the upper cam structure or the lower cam structure when machining the gear structure.

[0017] Furthermore, a limiting structure is provided between the upper connecting wing plate and the lower connecting wing plate for limiting the relative displacement of the upper connecting wing plate and the lower connecting wing plate in the circumferential direction and / or radial direction of the pivot axis, thereby achieving a fixed connection between the two.

[0018] Furthermore, the limiting structure includes a protruding structure and a recessed structure provided on the joint end surfaces of the upper connecting wing plate and the lower connecting wing plate.

[0019] For example, the splicing end surface of the upper connecting wing plate is provided with a convex structure or a concave structure, and the splicing end surface of the lower connecting wing plate is provided with a concave structure or a convex structure.

[0020] Furthermore, two or more of the limiting structures are arranged at intervals on the splicing end surfaces of the upper connecting wing plate and the lower connecting wing plate.

[0021] Furthermore, the protrusion structure is a columnar protrusion, a frustum-shaped protrusion or a long strip protrusion; the concave structure is a circular positioning hole, a frustum-shaped positioning hole or a long strip limiting groove.

[0022] Preferably, the limiting structure includes a T-slot or a dovetail slot (wedge-shaped slot) provided on the upper connecting wing plate or the lower connecting wing plate, and a T-block or a dovetail plug (or wedge-shaped block) provided on the lower connecting wing plate or the upper connecting wing plate.

[0023] Further, the upper connecting wing plate and the lower connecting wing plate are respectively provided with a first hook-shaped portion and a second hook-shaped portion;

[0024] The first hook portion includes a first groove and a first plug-in portion;

[0025] The second hook-shaped portion includes a second groove and a second plug-in portion;

[0026] The first plug-in portion and the second plug-in portion are respectively inserted into the second groove and the first groove, thereby connecting and fixing the upper connecting wing plate and the lower connecting wing plate.

[0027] Furthermore, an inserting groove is provided on the first inserting portion or the second inserting portion, and a protruding structure which is plugged and matched with the inserting groove is provided on the second inserting portion or the first inserting portion.

[0028] Preferably, the cross section of the plug-in slot is rectangular, triangular, T-shaped or dovetail-shaped.

[0029] Among them, the first hook-shaped portion and the second hook-shaped portion are arranged at the joint of the upper connecting wing plate or the lower connecting wing plate. More preferably, the first hook-shaped portion and the second hook-shaped portion are arranged at the end of the joint of the upper connecting wing plate or the lower connecting wing plate. Further preferably, they are arranged at the outer end of the joint away from the pivot part.

[0030] Furthermore, the upper connecting wing plate is provided with a first connecting portion extending toward one side of the lower connecting wing plate, and the lower connecting wing plate is provided with a second connecting portion extending toward one side of the upper connecting wing plate; the first connecting portion and the second connecting portion are stacked on each other in the thickness direction thereof; the first connecting portion and the second connecting portion are fixedly connected by fasteners such as screws, bolts, nuts or anchors, or by a clamping method, thereby connecting and fixing the upper connecting wing plate and the lower connecting wing plate.

[0031] The first connecting part and the second connecting part are preferably plate-like structures, or one of them is a plate body and the other is a sink structure overlapping the plate body.

[0032] Furthermore, the first connection part or the second connection part is provided with a card connector protruding toward the second connection part or the first connection part, and the second connection part or the first connection part is provided with a card hole or a card groove plug-fitted with the card connector.

[0033] Furthermore, the upper connecting wing plate and the lower connecting wing plate are fixedly connected by bonding, welding or riveting.

[0034] Preferably, the upper connecting wing plate and the lower connecting wing plate are fixedly connected by welding (such as laser welding), and the welding points are arranged on the ends of the connecting wing plate and the lower connecting wing plate away from the upper pivot part and the lower pivot part.

[0035] Preferably, the upper pivoting portion and the upper connecting wing plate are made in one piece; and / or the lower pivoting portion and the lower connecting wing plate are made in one piece.

[0036] Furthermore, it also includes: a slider and an actuating spring;

[0037] The slider can be slidably arranged on the body along the axial direction of the pivot axis;

[0038] The slider is provided with a first cam structure on an end surface of one side close to the upper block;

[0039] The upper cam structure on the upper block is meshed with the first cam structure;

[0040] The first cam structure and the upper cam structure are arranged around the circumference of the pivot shaft and are used for temporary limiting and locking of the connecting seat during the swinging process;

[0041] The two ends of the actuator spring are respectively connected to the slider and the body, and the spring force of the actuator spring tends to force the slider to axially abut against the upper block to maintain the meshing state of the first cam structure and the upper cam structure.

[0042] Furthermore, the body is provided with a second cam structure meshing with the lower cam structure on one side of the lower block;

[0043] The connecting seat is slidably mounted on the pivot shaft;

[0044] The actuating spring tends to force the connecting seat to abut against the second cam structure through the slider, thereby maintaining the meshing state of the second cam structure and the lower cam structure.

[0045] Furthermore, in the axial direction of the pivot shaft, two combinations of the connecting seat and the sliding block are symmetrically arranged in the upper and lower directions;

[0046] It also includes a seat plate; the two coaxially arranged connecting seats are respectively fixedly connected to the seat plate.

[0047] Furthermore, the upper connecting wing plate and the lower connecting wing plate are connected to the seat plate by plugging.

[0048] Furthermore, a slot or a long strip protrusion is provided on the upper end surface of the upper connecting wing plate facing away from the lower connecting wing plate and a slot or a long strip protrusion is provided on the lower end surface of the lower connecting wing plate facing away from the upper connecting wing plate; and a plug-in protrusion or a card groove which is plugged into and cooperates with the slot or the long strip protrusion is provided on the seat plate.

[0049] Furthermore, the surfaces of the upper cam structure, the lower cam structure and the gear structure are provided with a wear-resistant coating.

[0050] Furthermore, the upper pivoting portion and the lower pivoting portion on the connecting seat are arranged at intervals; a receiving groove is provided between the upper pivoting portion and the lower pivoting portion;

[0051] The main body includes an intermediate connecting block; the intermediate connecting block includes a main body and a wing portion, the wing portion is inserted into the accommodating groove, and an angle limiting structure for limiting the swing angle of the connecting seat is arranged between the wing portion and the upper pivot portion or the lower pivot portion.

[0052] Preferably, the corner limiting structure includes a limiting platform or a limiting groove that cooperates with each other and is arranged on the wing portion and the upper pivot portion or the lower pivot portion.

[0053] Preferably, the main body includes an end plate, and in the axial direction of the pivot shaft, the end plate, the actuator spring, the slider, the upper pivot part, the middle connecting block and the lower pivot part are arranged in sequence; the middle connecting block and the end plate are provided with connecting holes that are plugged into and cooperate with the pivot shaft.

[0054] The so-called mobile phone in this application includes not only the folding screen mobile phone in the traditional sense, but also includes electronic devices with hinged structures such as pads and laptops. Among them, the flexible screen or folding screen is fixedly connected to the connecting seat and the seat plate.

[0055] By adopting the above technical solution, the utility model has the following beneficial effects:

[0056] The utility model provides a flexible screen hinge structure, in which a connecting seat is formed by splicing two upper blocks and a lower block, so that two cam structures are formed on the two blocks respectively, the manufacturability is stronger, the processing is convenient, the yield rate is high, and the production cost is greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0058] Figure 1 A front view of the flexible screen hinge structure provided by an embodiment of the utility model;

[0059] Figure 2 for Figure 1 An exploded view of the connecting seat and the seat plate shown;

[0060] Figure 3 for Figure 1 A partial schematic diagram of the connection between the connecting base and the body shown;

[0061] Figure 4 for Figure 3 An exploded diagram of

[0062] Figure 5 An exploded view of a connection socket provided in an embodiment;

[0063] Figure 6 for Figure 5 A schematic diagram of the structure of the second perspective of the upper block in FIG.

[0064] Figure 7 A schematic diagram of the structure of the intermediate connection block provided in the embodiment;

[0065] Figure 8 It is a partial schematic diagram of the upper block and the lower block being connected by dovetail slot plug-in mode;

[0066] Fig. 9 It is a partial schematic diagram of the upper block and the lower block being connected by T-slot plug-in mode;

[0067] Fig.10 It is a partial schematic diagram of the first hook portion in another connection mode;

[0068] Fig.11 is a partial schematic diagram of the second hook portion in another connection method;

[0069] Fig.12 A connection structure diagram of the third connection method between the upper connecting wing plate and the lower connecting wing plate;

[0070] Fig.13 for Fig.12 A partial schematic diagram of the first connecting portion;

[0071] Fig.14 for Fig.12 A partial schematic diagram of the second connecting part.

[0072] Reference numerals:

[0073] 10-body; 11-pivot shaft; 12-first gear; 13-second gear; 15-actuator spring; 16-second cam structure; 17-middle connecting block; 17a-body; 17b-wing; 17c-first limit platform; 18-end plate; 20-connecting seat; 21-long strip-shaped protrusion; 30-upper block; 31-upper pivoting part; 32-upper connecting wing plate; 33-upper cam structure; 35-recessed structure; 36-dovetail groove; 36a -T-slot; 37-first hook; 37a-first plug-in portion; 37b-first groove; 37c-groove protrusion structure; 38-first connecting portion; 38a-clamping hole; 40-lower block; 41-lower pivot portion; 42-lower connecting wing plate; 43-lower cam structure; 44-gear structure; 45-protrusion structure; 46-dovetail plug-in block; 46a-T-block; 47-second hook; 47a-second plug-in portion; 47b-second groove; 47c-plug-in slot; 48-second connecting portion; 48a-clamping joint; 49-second limit platform; 50-slider; 51-first cam structure; 60-seat plate; 61-slot. DETAILED DESCRIPTION

[0074] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0075] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0076] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0077] The present invention will be further explained below in conjunction with specific implementation methods.

[0078] like Figure 1-7 As shown, a flexible screen hinge structure provided in this embodiment includes: a body 10 and a connecting seat 20; the connecting seat 20 is pivotally connected to the body 10 via a pivot shaft 11;

[0079] The connecting seat 20 includes an upper block 30 and a lower block 40 which are made separately; the upper block 30 includes an upper pivot portion 31 and an upper connecting wing plate 32 which are fixedly connected to each other (preferably the two are made in one piece); the lower block 40 includes a lower pivot portion 41 and a lower connecting wing plate 42 which are fixedly connected to each other (preferably the two are made in one piece); an upper cam structure 33 is provided at the top of the upper pivot portion 31 (the side away from the lower block 40); a lower cam structure 43 is provided at the bottom of the lower pivot portion 41 (the side away from the upper block 30); the upper pivot portion 31 and the lower pivot portion 41 are coaxially arranged, and the upper connecting wing plate 32 and the lower connecting wing plate 42 are fixedly connected.

[0080] A gear structure 44 (or tooth structure) is arranged on the outer circumference of the upper pivot portion 31 or the lower pivot portion 41; a first gear 12 and a second gear 13 that mesh with each other are rotatably arranged on the main body 10; the gear structures 44 on the two connecting seats 20 that are symmetrically arranged on the left and right are respectively meshed with the first gear 12 and the second gear 13, so that the two connecting seats 20 are used to rotate synchronously in the same direction or opposite directions.

[0081] Furthermore, the gear structure 44 is spaced apart from the upper cam structure 33 or the lower cam structure 43. That is, in the axial direction, the gear structure 44 is not connected to the upper cam structure 33 or the lower cam structure 43, so as to avoid forcing the upper cam structure 33 or the lower cam structure 43 when machining the gear structure 44.

[0082] In this embodiment, a limiting structure is provided between the upper connecting wing plate 32 and the lower connecting wing plate 42, which is used to limit the relative displacement of the upper connecting wing plate 32 and the lower connecting wing plate 42 in the circumferential direction and / or radial direction of the pivot shaft 11, thereby achieving a fixed connection between the two. Preferably, the limiting structure includes a concave-convex structure provided on the splicing end surface of the upper connecting wing plate 32 and the lower connecting wing plate 42. For example, the splicing end surface of the upper connecting wing plate 32 is provided with a recessed structure 35 such as a positioning hole and a card slot, and the splicing end surface of the lower connecting wing plate 4242 is provided with a convex structure 45 such as a pin and a wedge block that is plugged and matched with the recessed structure 35.

[0083] Preferably, two or more of the limiting structures are arranged at intervals on the joint end surfaces of the upper connecting wing plate 32 and the lower connecting wing plate 42. The protrusion structure 45 is a columnar protrusion, a frustum-shaped protrusion or a long strip protrusion; the concave structure 35 is a circular positioning hole, a frustum-shaped positioning hole or a long strip limiting groove.

[0084] See also Figure 8 As shown, preferably, the limiting structure includes a dovetail groove 36 (wedge-shaped groove) provided on the upper connecting wing plate 32 or the lower connecting wing plate 42 , and a dovetail plug 46 (or wedge-shaped block) provided on the lower connecting wing plate 42 or the upper connecting wing plate 32 .

[0085] Alternatively, see Fig. 9 As shown, the limiting structure includes a T-shaped groove 36 a provided on the upper connecting wing plate 32 or the lower connecting wing plate 42 , and a T-shaped block 46 a provided on the lower connecting wing plate 42 or the upper connecting wing plate 32 .

[0086] Another embodiment of the limiting structure is, see Fig.10 and Fig.11As shown, the upper connecting wing plate 32 and the lower connecting wing plate 42 are respectively provided with a first hook-shaped portion 37 and a second hook-shaped portion 47; the first hook-shaped portion 37 includes a first groove 37b and a first plug-in portion 37a; the second hook-shaped portion 47 includes a second groove 47b and a second plug-in portion 47a; the first plug-in portion 37a and the second plug-in portion 47a are respectively inserted into the second groove 47b and the first groove 37b, thereby connecting and fixing the upper connecting wing plate 32 and the lower connecting wing plate 42. Further preferably, the first plug-in portion 37a or the second plug-in portion 47a is provided with a plug-in groove 47c, and the second plug-in portion 47a or the first plug-in portion 37a is provided with a groove protrusion structure 37c that is plugged and matched with the plug-in groove 47c. Preferably, the cross-sections of the plug-in groove 47c and the groove protrusion structure 37c can be rectangular, triangular, T-shaped or dovetail-shaped.

[0087] Among them, the first hook portion 37 and the second hook portion 47 are arranged at the joint of the upper connecting wing plate 32 or the lower connecting wing plate 42. More preferably, the first hook portion 37 and the second hook portion 47 are arranged at the end of the joint of the upper connecting wing plate 32 or the lower connecting wing plate 42, and further preferably, they are arranged at the outer end of the joint away from the pivot portion.

[0088] The implementation method of the limiting structure can also be, see Figure 12-14 As shown, the upper connecting wing plate 32 is provided with a first connecting portion 38 extending toward one side of the lower connecting wing plate 42, and the lower connecting wing plate 42 is provided with a second connecting portion 48 extending toward one side of the upper connecting wing plate 32; the first connecting portion 38 and the second connecting portion 48 are stacked on each other in the thickness direction thereof; the first connecting portion 38 and the second connecting portion 48 are fixedly connected by fasteners such as screws, bolts, nuts or anchors or by a snap-on method, thereby connecting and fixing the upper connecting wing plate 32 and the lower connecting wing plate 42. In this embodiment, the first connecting portion 38 and the second connecting portion 48 are preferably plate-like structures, or one of them is a plate body and the other is a sink structure overlapping the plate body. Further preferably, the first connecting portion 38 or the second connecting portion 48 is provided with a snap-on joint 48a protruding toward the direction of the second connecting portion 48 or the first connecting portion 38, and the second connecting portion 48 or the first connecting portion 38 is provided with a snap-on hole 38a or a snap-on groove that is plugged and matched with the snap-on joint 48a.

[0089] Furthermore, the upper connecting wing plate 32 and the lower connecting wing plate 42 may also be fixedly connected by bonding, welding or riveting. Preferably, the upper connecting wing plate 32 and the lower connecting wing plate 42 are fixedly connected by welding (such as laser welding), and the welding points are arranged on the ends of the connecting wing plate and the lower connecting wing plate 42 away from the upper pivoting portion 31 and the lower pivoting portion 41.

[0090] Preferably, the upper pivoting portion 31 and the upper connecting wing plate 32 are made in one piece; and / or the lower pivoting portion 41 and the lower connecting wing plate 42 are made in one piece.

[0091] See also Figure 1 , Figure 2 and Figure 3 As shown, this embodiment further includes: a slider 50 and an execution spring 15; the slider 50 can be slidably arranged on the body 10 along the axial direction of the pivot shaft 11; the slider 50 is provided with a first cam structure 51 on one end face close to the upper block 30; the upper cam structure 33 on the upper block 30 is meshed with the first cam structure 51; the first cam structure 51 and the upper cam structure 33 are arranged around the circumference of the pivot shaft 11, and are used for temporary limiting and locking of the connecting seat 20 during the swinging process;

[0092] Both ends of the actuator spring 15 are connected to the slider 50 and the body 10 respectively. The spring force of the actuator spring 15 tends to force the slider 50 to axially abut against the upper block 30 to maintain the meshing state of the first cam structure 51 and the upper cam structure 33.

[0093] Further, see Figure 4 As shown, the main body 10 is provided with a second cam structure 16 meshing with the lower cam structure 43 on one side of the lower block 40; the connecting seat 20 is slidably mounted on the pivot shaft 11; the execution spring 15 tends to force the connecting seat 20 to rest against the second cam structure 16 through the slider 50, thereby maintaining the meshing state of the second cam structure 16 and the lower cam structure 43.

[0094] See also Figure 1 As shown, in the axial direction of the pivot shaft 11, two combinations of the connecting seats 20 and the sliding blocks 50 are symmetrically arranged in the upper and lower directions; this embodiment also includes a seat plate 60; the two connecting seats 20 arranged coaxially are respectively fixedly connected to the seat plate 60. The upper connecting wing plate 32 and the lower connecting wing plate 42 are connected to the seat plate 60 by plugging. For example, the upper connecting wing plate 32 is provided with a slot 61 or a long strip protrusion 21 on the upper end surface of the side away from the lower connecting wing plate 42 and the lower connecting wing plate 42 is provided with a lower end surface of the side away from the upper connecting wing plate 32; the seat plate 60 is provided with a plugging protrusion or a card slot that plugs and cooperates with the slot 61 or the long strip protrusion 21.

[0095] Further preferably, the surfaces of the upper cam structure 33 , the lower cam structure 43 and the gear structure 44 are provided with a wear-resistant coating.

[0096] On the basis of the above technical solution, further, the upper pivoting portion 31 and the lower pivoting portion 41 on the connecting seat 20 are arranged at intervals; a receiving groove is provided between the upper pivoting portion 31 and the lower pivoting portion 41; the body 10 includes an intermediate connecting block 17; see Figure 7 As shown, the intermediate connecting block 17 includes a main body 17a and a wing 17b, the wing 17b is inserted into the receiving groove, and an angle limiting structure for limiting the swing angle of the connecting seat 20 is provided between the wing 17b and the upper pivoting portion 31 or the lower pivoting portion 41. Preferably, the angle limiting structure includes a first limiting platform 17c and a second limiting platform 49 provided on the wing 17b and the upper pivoting portion 31 or the lower pivoting portion 41, which cooperate with each other.

[0097] Preferably, the main body 10 includes an end plate 18, and in the axial direction of the pivot shaft 11, the end plate 18, the actuator spring 15, the slider 50, the upper pivot part 31, the intermediate connecting block 17 and the lower pivot part 41 are arranged in sequence; the intermediate connecting block 17 and the end plate 18 are provided with connecting holes that are plugged in with the pivot shaft 11.

[0098] The so-called mobile phone in this application includes not only folding screen mobile phones in the traditional sense, but also electronic devices with hinged structures such as pads and laptops. Among them, the flexible screen or folding screen is fixedly connected to the connecting seat 20 and the seat plate 60.

[0099] The utility model provides a flexible screen hinge structure, wherein a connecting seat 20 is formed by splicing two upper blocks 30 and a lower block 40, so that two cam structures are formed on the two blocks respectively, which has stronger manufacturability, is easy to process, has a high yield rate, and greatly reduces production costs.

[0100] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A flexible screen hinge structure, characterized in that: include: The main body and the connecting seat; the connecting seat is pivotally connected to the main body via a pivot shaft; The connecting seat comprises an upper block and a lower block which are made separately; The upper block comprises an upper pivoting portion and an upper connecting wing plate fixedly connected to each other; The lower block comprises a lower pivoting portion and a lower connecting wing plate fixedly connected to each other; An upper cam structure is provided on the top of the upper pivoting portion; A lower cam structure is provided at the bottom of the lower pivoting portion; The upper pivoting portion and the lower pivoting portion are coaxially arranged, and the upper connecting wing plate and the lower connecting wing plate are fixedly connected.

2. The flexible screen hinge structure according to claim 1, characterized in that: A gear structure is provided on the outer circumference of the upper pivot part or the lower pivot part; The main body is rotatably provided with a first gear and a second gear meshing with each other; The gear structures on the two connecting seats symmetrically arranged on the left and right are respectively meshed with the first gear and the second gear, so that the two connecting seats are used to rotate synchronously in the same direction or in the opposite direction.

3. The flexible screen hinge structure according to claim 2, characterized in that: The gear structure is spaced apart from the upper cam structure or the lower cam structure.

4. The flexible screen hinge structure according to claim 1, characterized in that: A limiting structure is provided between the upper connecting wing plate and the lower connecting wing plate, for limiting the relative displacement of the upper connecting wing plate and the lower connecting wing plate in the circumferential direction and / or radial direction of the pivot shaft.

5. The flexible screen hinge structure according to claim 4, characterized in that: The limiting structure includes a protruding structure and a recessed structure arranged on the splicing end surfaces of the upper connecting wing plate and the lower connecting wing plate.

6. The flexible screen hinge structure according to claim 4, characterized in that: Two or more of the limiting structures are arranged at intervals on the splicing end surfaces of the upper connecting wing plate and the lower connecting wing plate.

7. The flexible screen hinge structure according to claim 5, characterized in that: The protrusion structure is a columnar protrusion, a frustum-shaped protrusion or a long strip protrusion; the concave structure is a circular positioning hole, a frustum-shaped positioning hole or a long strip limiting groove.

8. The flexible screen hinge structure according to claim 4, characterized in that: The limiting structure includes a T-slot or a dovetail slot provided on the upper connecting wing plate or the lower connecting wing plate, and a T-block or a dovetail plug-in block provided on the lower connecting wing plate or the upper connecting wing plate.

9. The flexible screen hinge structure according to claim 1, characterized in that: The upper connecting wing plate and the lower connecting wing plate are respectively provided with a first hook-shaped portion and a second hook-shaped portion; The first hook portion includes a first groove and a first plug-in portion; The second hook-shaped portion includes a second groove and a second plug-in portion; The first plug-in portion and the second plug-in portion are respectively inserted into the second groove and the first groove, thereby connecting and fixing the upper connecting wing plate and the lower connecting wing plate.

10. The flexible screen hinge structure according to claim 9, characterized in that: The first plug-in portion or the second plug-in portion is provided with a plug-in slot, and the second plug-in portion or the first plug-in portion is provided with a protrusion structure that is plugged and matched with the plug-in slot.

11. The flexible screen hinge structure according to claim 10, characterized in that: The cross section of the plug-in slot is rectangular, triangular, T-shaped or dovetail-shaped.

12. The flexible screen hinge structure according to claim 1, characterized in that: The upper connecting wing plate is provided with a first connecting portion extending toward one side of the lower connecting wing plate, and the lower connecting wing plate is provided with a second connecting portion extending toward one side of the upper connecting wing plate; the first connecting portion and the second connecting portion are stacked on each other in the thickness direction thereof; the first connecting portion and the second connecting portion are fixedly connected by fasteners such as screws, bolts, nuts or anchors or by a clamping method, thereby connecting and fixing the upper connecting wing plate and the lower connecting wing plate.

13. The flexible screen hinge structure according to claim 12, characterized in that: The first connecting part and the second connecting part are plate-like structures, or one of them is a plate body and the other is a sink structure overlapping the plate body.

14. The flexible screen hinge structure according to claim 12, characterized in that: The first connection part or the second connection part is provided with a card connector protruding toward the second connection part or the first connection part, and the second connection part or the first connection part is provided with a card hole or a card groove plugged with the card connector.

15. The flexible screen hinge structure according to claim 1, characterized in that: The upper connecting wing plate and the lower connecting wing plate are fixedly connected by bonding, welding or riveting.

16. The flexible screen hinge structure according to claim 1, characterized in that: The upper connecting wing plate and the lower connecting wing plate are fixedly connected by welding, and the welding points are arranged on the ends of the connecting wing plate and the lower connecting wing plate away from the upper pivot part and the lower pivot part.

17. The flexible screen hinge structure according to claim 1, characterized in that: The upper pivoting portion and the upper connecting wing plate are integrally formed; and / or the lower pivoting portion and the lower connecting wing plate are integrally formed.

18. The flexible screen hinge structure according to claim 1, characterized in that: Also includes: Slide block and actuator spring; The slider can be slidably arranged on the body along the axial direction of the pivot axis; The slider is provided with a first cam structure on an end surface of one side close to the upper block; The upper cam structure on the upper block is meshed with the first cam structure; The first cam structure and the upper cam structure are arranged around the circumference of the pivot shaft and are used for temporary limiting and locking of the connecting seat during the swinging process; The two ends of the actuator spring are respectively connected to the slider and the body, and the spring force of the actuator spring tends to force the slider to axially abut against the upper block to maintain the meshing state of the first cam structure and the upper cam structure.

19. The flexible screen hinge structure according to claim 18, characterized in that: The main body is provided with a second cam structure meshing with the lower cam structure on one side of the lower block; The connecting seat is slidably mounted on the pivot shaft; The actuating spring tends to force the connecting seat to abut against the second cam structure through the slider, thereby maintaining the meshing state of the second cam structure and the lower cam structure.

20. The flexible screen hinge structure according to claim 18, characterized in that: In the axial direction of the pivot shaft, two combinations of the connecting seat and the sliding block are symmetrically arranged in the upper and lower directions; It also includes a seat plate; the two coaxially arranged connecting seats are respectively fixedly connected to the seat plate.

21. The flexible screen hinge structure according to claim 20, characterized in that: The upper connecting wing plate and the lower connecting wing plate are connected to the seat plate by plugging.

22. The flexible screen hinge structure according to claim 21, characterized in that: The upper connecting wing plate is provided with a slot or a long strip protrusion on the upper end surface facing away from the lower connecting wing plate and the lower connecting wing plate is provided with a slot or a long strip protrusion on the lower end surface facing away from the upper connecting wing plate; the seat plate is provided with a plug-in protrusion or a card groove that is plugged into and matched with the slot or the long strip protrusion.

23. The flexible screen hinge structure according to claim 2, characterized in that: The surfaces of the upper cam structure, the lower cam structure and the gear structure are provided with a wear-resistant coating.

24. The flexible screen hinge structure according to claim 18, characterized in that: The upper pivoting portion and the lower pivoting portion on the connecting seat are arranged at intervals; a receiving groove is provided between the upper pivoting portion and the lower pivoting portion; The body includes an intermediate connecting block; The middle connecting block comprises a main body and a wing portion, the wing portion is inserted into the accommodating groove, and an angle limiting structure for limiting the swing angle of the connecting seat is arranged between the wing portion and the upper pivot portion or the lower pivot portion.

25. The flexible screen hinge structure according to claim 24, characterized in that: The corner limiting structure includes a limiting platform or a limiting groove that cooperates with each other and is arranged on the wing part and the upper pivot part or the lower pivot part.

26. The flexible screen hinge structure according to claim 24, characterized in that: The main body includes an end plate, and in the axial direction of the pivot shaft, the end plate, the actuator spring, the slider, the upper pivot part, the middle connecting block and the lower pivot part are arranged in sequence; the middle connecting block and the end plate are provided with connecting holes that are plugged into and matched with the pivot shaft.

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