CN115823103B - Triangle inward folding hinge for folding mobile phone with flexible screen and without crease - Google Patents
Triangle inward folding hinge for folding mobile phone with flexible screen and without crease Download PDFInfo
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- CN115823103B CN115823103B CN202211357454.5A CN202211357454A CN115823103B CN 115823103 B CN115823103 B CN 115823103B CN 202211357454 A CN202211357454 A CN 202211357454A CN 115823103 B CN115823103 B CN 115823103B
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Abstract
The invention discloses a triangle inward folding hinge for folding a flexible screen mobile phone without crease bending, which comprises a base and a main control movable frame, wherein a first rotating arm and a second rotating arm which are symmetrically distributed are arranged on two sides of the base, the first rotating arm and the second rotating arm are respectively linked with the base and the main control movable frame, the first rotating arm and the second rotating arm are mutually linked, a connecting movable frame is arranged at the outer end of the base, and the connecting movable frame is in linkage fit with the second rotating arm; the base is provided with a first curve groove and a first sliding shaft, the first rotating arm is provided with a second curve groove and a second sliding shaft, the first sliding shaft is in sliding fit with the second curve groove, the second sliding shaft is in sliding fit with the first curve groove to realize track control, and in the bending and rotating process, the front-section travel of the track is changed in a U-shaped mimicry mode, and the rear-section travel of the track is changed in a water drop mimicry mode, so that the rotating control is completed.
Description
Technical Field
The invention relates to the technical field of telephone design, in particular to a flexible screen folding mobile phone design technology, and in particular relates to a triangle inward folding hinge for folding a flexible screen folding mobile phone without crease.
Background
Compared with a traditional backlight source screen (LCD), the flexible screen (OLED) can emit light, and can realize excellent image quality through self-luminescence, and color development is natural and has no harm of blue light; the screen can be flexibly used, and can be bent and folded; the flexible light and thin screen is free from heating and comfortable in hand feeling, can create various screen forms such as a flexible screen, a curved screen, a folding screen and the like, and meets the development requirements of mobile phones. In the future, the flexible screen will be widely applied along with the continuous penetration of the personal intelligent terminal, and can also be used for various flexible screen electronic terminal products, such as: tablet, display, smart wearable device, etc.
The flexible screen generally comprises a plurality of layers of high polymer materials and OCA optical cement, and the complete flexible display screen comprising a plurality of layers of display materials is formed with a plurality of neutral layers, and due to the relation of multi-layer stacking, different stacks of the flexible display screen can generate elastic change and other factors, the bending movement track of the flexible display screen is necessarily irregular, and the flexible screen needs to have good plasticity and ductility when applied to a folding screen mobile phone, and the test is that: after repeated stretching and compression for many times, whether the screen can still keep crease-free and damage-free; whether the circuit board and components in the mobile phone can withstand folding and bending and the like; secondly, the bending area of the whole screen of the foldable mobile phone is connected with the middle frame or the shell through a precise hinge, so that the screen is bent and supported; at the same time, the hinge is sufficiently durable and reliable to withstand twenty thousand folds without error. The joint angle of the hinge and the screen is one of the technical difficulties of the foldable mobile phone, and the problems of low processing yield and high cost are also urgently needed to be solved.
To meet the above functions, a precise microstructure hinge is needed to realize, and the existing hinge can basically realize simple functions of damping torsion and synchronization, but cannot completely solve the problems of crease elimination and service life guarantee, and cannot meet the high precision and cost requirements of industrial manufacturing.
One of the main modes of the internal folding mode adopted by the folding mobile phone applied by the conventional flexible screen is to realize a water drop mode in a bending area after bending, and the water drop mode is different from a standard water drop mode and different from a standard water drop mode.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the triangular inward folding hinge for folding the flexible screen folding mobile phone without crease.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the triangle inward folding hinge for folding the flexible screen and enabling the mobile phone to be folded without folds comprises a base and a main control movable frame, wherein first rotating arms and second rotating arms which are symmetrically distributed are arranged on two sides of the base, the first rotating arms and the second rotating arms are respectively linked with the base and the main control movable frame, the first rotating arms and the second rotating arms are linked with each other, the outer end of the base is provided with a connecting movable frame, and the connecting movable frame is in linkage fit with the second rotating arms;
the base is provided with a first curve groove and a first sliding shaft, the first rotating arm is provided with a second curve groove and a second sliding shaft, the first sliding shaft is in sliding fit with the second curve groove, and the second sliding shaft is in sliding fit with the first curve groove to realize track control.
In particular, a third curve groove is arranged on the connecting movable frame, a third sliding shaft is arranged on the second rotating arm, and the third sliding shaft is in sliding fit with the third curve groove to realize linkage of the connecting movable frame and the second rotating arm.
In particular, a longitudinal sliding shaft is arranged on the connecting movable frame, a longitudinal sliding groove is arranged on the second rotating arm, and the longitudinal sliding shaft is in sliding fit with the longitudinal sliding groove to realize the linkage of the connecting movable frame and the second rotating arm.
Particularly, a connecting rod for realizing linkage fit is arranged between the connecting movable frame and the second rotating arm.
In particular, a transverse sliding groove is formed in the main control movable frame, a fourth sliding shaft is arranged on the second rotating arm, the fourth sliding shaft is in sliding fit with the transverse sliding groove to achieve linkage of the main control movable frame and the second rotating arm, a first rotating shaft is arranged on the first rotating arm, a first rotating hole is formed in the second rotating arm, and the first rotating shaft is in rotating fit with the first rotating hole to achieve lever type connection of the first rotating arm and the second rotating arm.
Particularly, a second rotating hole is formed in the main control movable frame, a second rotating shaft is arranged on the second rotating arm, the second rotating shaft is in rotating fit with the second rotating hole to realize linkage of the main control movable frame and the second rotating arm, a fifth sliding shaft is arranged on the first rotating arm, a transverse sliding groove is formed in the second rotating arm, and the fifth sliding shaft is in sliding fit with the transverse sliding groove to realize lever type connection of the first rotating arm and the second rotating arm.
In particular, a longitudinal sliding groove is formed in the main control movable frame, a sixth sliding shaft is arranged on the second rotating arm, the sixth sliding shaft is in sliding fit with the longitudinal sliding groove to realize linkage of the main control movable frame and the second rotating arm, an intermediate sliding groove is formed in the first rotating arm, an intermediate sliding block is arranged on the second rotating arm, and the intermediate sliding block is in sliding fit with the first rotating arm and the second rotating arm relatively in the intermediate sliding groove.
In particular, the main control movable frame is provided with a special-shaped groove, the second rotating arm is provided with a sixth sliding shaft, the sixth sliding shaft is in sliding fit with the special-shaped groove to realize the linkage of the main control movable frame and the second rotating arm, the first rotating arm is provided with a middle sliding groove, the second rotating arm is provided with a middle sliding block, and the middle sliding block is in relative sliding fit in the middle sliding groove to realize the push-pull connection of the first rotating arm and the second rotating arm.
In particular, the special-shaped groove is composed of a straight groove and a curved groove.
Particularly, the first rotating arm and the main control movable frame are in linkage through the rotation fit of the semicircular shaft and the semicircular arc.
In particular, the first rotating arm and the main control movable frame are in linkage through the rotating fit of the round shaft and the round hole.
In particular, the first rotating arm and the main control movable frame are in sliding fit with each other through the nails and the grooves.
Particularly, a sliding block is arranged between the first rotating arm and the main control movable frame, the sliding block is rotationally connected with the first rotating arm, the sliding block is in sliding connection with the main control movable frame, and the first rotating arm is in sliding connection with the main control movable frame through a nail and a groove.
In particular, a single shaft is arranged on the first rotating arm, the single shaft is in sliding connection with the first rotating arm, the single shaft is fixedly connected with the main control movable frame, and the first rotating arm is in sliding connection with the main control movable frame through a nail and a groove.
In particular, a crossed cross connecting rod is arranged between the first rotating arm and the main control movable frame to realize rotating connection.
In particular, one end of the second rotating arm is provided with a round hole, and the other end of the second rotating arm is provided with a semicircular shaft.
In particular, one end of the second rotating arm is provided with a round hole, and two sides of the other end of the second rotating arm are respectively provided with a semicircular shaft and an arc groove.
In particular, one end of the second rotating arm is provided with a round hole, and two sides of the other end of the second rotating arm are respectively provided with a straight line groove and a rotating column.
In particular, one end of the second rotating arm is provided with a round hole, and two sides of the other end of the second rotating arm are respectively provided with a penetrating curve groove and a rotating column.
In particular, one end of the second rotating arm is provided with a round hole, and the other end of the second rotating arm is provided with a rack for realizing meshing.
In particular, the base is provided with third rotating arms and connecting shafts which are symmetrically distributed, and the third rotating arms are in linkage fit with the main control movable frame.
In particular, a transverse straight groove is formed in the main control movable frame, a transverse sliding column is arranged on the third rotating arm, and the transverse sliding column slides in the transverse straight groove to realize the rotary connection of the main control movable frame and the third rotating arm.
Particularly, the connecting shaft is connected with the third rotating arm through a shaft, a concave wheel connecting plate is arranged on the connecting shaft, the concave wheel connecting plate is matched with a cam on the third rotating arm in a concave-convex mode to achieve clamping point self-locking at the 0-degree position and the 180-degree position, and a spring for achieving elasticity and torsion control is arranged on the connecting shaft.
Particularly, a plurality of groups of gears are arranged between the third rotating arms, and the gears are mutually meshed to realize 0-180-degree synchronous rotation.
The invention has the beneficial effects that:
1. synchronous bending in the range of 0-180 degrees of rotation control is completed after the front-section stroke is controlled to be in a U-shaped mimicry and changed to the rear-section stroke is in a water-drop-shaped mimicry through the main shaft, when the hinge is combined with the flexible screen for application, rubberizing of a bending area can be achieved, compared with rubberizing outside the bending area of a traditional mechanism, pulling of the screen can be effectively reduced, folds are eliminated, dimensional space is reduced, dust and particles enter the inner space of the screen is reduced, and service life is prolonged.
2. The curve groove of the first rotating arm is matched with the curve groove to realize track control, the second rotating arm is randomly set to comprise two motion modes of a lever type and a push-pull type, the shaft moves along the track of the chute to realize 0-180-degree synchronous rotation, the shaft rotates along the track of the arc chute, the arc chute at two ends rotates with the arc sliding block to realize 0-180-degree rotation, the sliding column is movably matched along the track of the curve groove to realize 0-180-degree synchronous rotation, and the rotating mechanism integrally realizes a linked novel water drop form bending track.
3. The outer side surface of the hinge keeps the bottom unchanged, the triangle framework with two sides free from deformation is bent, and the whole linkage cooperation of the rotating arm realizes the track change of combining the U shape of the motion track with the shape of the water drop.
Drawings
Fig. 1 is a schematic view of a hinge structure in the embodiment of the present patent.
Fig. 2 is an exploded view of the hinge structure in the embodiment of the present patent.
Fig. 3 is a partial view of a hinge structure in the embodiment of the present patent.
Fig. 4 is one of the partially exploded views of the hinge structure in the embodiment of the present patent.
Fig. 5 is a schematic view of a second part of the hinge structure in the embodiment of the present invention.
FIG. 6 is a second partially exploded view of the hinge structure of the present embodiment.
Fig. 7 is a view showing a part of the assembly of the hinge structure in the embodiment of the present patent.
Fig. 8 is one of the exploded views of the hinge structure portion assemblies of the present patent embodiment.
FIG. 9 is a second component view of a hinge structure portion of the present embodiment.
FIG. 10 is a second exploded view of a portion of the hinge structure of the present embodiment.
Fig. 11 is a structural diagram of the base and the first rotating arm in the embodiment of the present invention.
Fig. 12 is a diagram showing a connection between the first rotating arm and the main control movable frame in the embodiment of the present invention.
Fig. 13 is a second diagram of the connection between the first rotating arm and the main control movable frame in the embodiment of the present invention.
Fig. 14 is a third connection diagram of the first rotating arm and the main control movable frame in the embodiment of the present invention.
Fig. 15 is a fourth diagram showing the connection between the first rotating arm and the main control movable frame in the embodiment of the present invention.
Fig. 16 is a fifth view of the connection between the first rotating arm and the main control movable frame in the embodiment of the present invention.
Fig. 17 is a sixth embodiment of the connection between the first rotating arm and the main control movable frame.
Fig. 18 is a seventh embodiment of the connection between the first rotating arm and the main control movable frame.
Fig. 19 is a diagram illustrating a connection between the first rotating arm and the main control movable frame in the embodiment of the present invention.
Fig. 20 is a diagram showing a connection between the movable frame and the second rotating arm in the embodiment of the present invention.
Fig. 21 is a second diagram of the connection between the movable frame and the second rotating arm in the embodiment of the present invention.
Fig. 22 is a third connecting view of the movable frame and the second rotating arm in the embodiment of the present invention.
Fig. 23 is one of the construction diagrams of the second rotating arm in the embodiment of the present patent.
Fig. 24 is a second construction diagram of the second pivoting arm in the embodiment of the present invention.
Fig. 25 is a third view of the structure of the second rotating arm in the embodiment of the present invention.
Fig. 26 is a fourth construction diagram of a second pivoting arm in the embodiment of the present patent.
Fig. 27 is a fifth construction diagram of the second pivoting arm in the embodiment of the present patent.
Fig. 28 is a diagram showing a connection structure between the third rotating arm and the main control movable frame in the embodiment of the present invention.
Fig. 29 is a schematic view of a conventional water droplet morphology.
Fig. 30 is a schematic view of a conventional U-shape.
Fig. 31 is a schematic diagram showing the form of the present patent.
Fig. 32 is a 180 degree cross-sectional view of the hinge.
Fig. 33 is a 90 degree state cross-sectional view of the hinge.
Fig. 34 is a 0 degree state cross-sectional view of the hinge.
Detailed Description
The invention is further described below with reference to the accompanying drawings of the specification:
as shown in fig. 29, 30 and 31, in the following embodiment, the bending track of the hinge has a linked structure similar to a water drop (fig. 31), that is, in the bending rotation process, the track front-stage travel is changed in a U-shaped (fig. 30) mimicry to the rear-stage travel, and the rotation control is completed after the water drop (fig. 29) mimicry. The water-drop-like morphological structure realizes the stroke constraint by combining the groove type variation of the arc groove with the groove type variation of the curve groove, and the stroke constraint is the comprehensive display of the length and the morphology.
During the bending rotation, as shown in fig. 32, the initial state defaults to 180 degrees, then the hinge starts to close, as shown in fig. 33, and rotates to 90 degrees, during this process, it can be seen that the position of the bottom 1001 is unchanged during the bending process of the hinge, and no matter what rotation is performed, the positions of the two sides 1002 are only changed in rotation, and no deformation occurs, and the whole movement track is changed, so, as shown in fig. 34, when rotating to the 0 degree position, the outside interface a of the hinge will take a complete triangle shape, namely: the bottom of the outer cross section of the hinge is fixed, the change of the side edges of the two sides is only along with the change of the bending and unfolding angles, the whole cross section is changed into a complete triangle along with the change of the angles, and the whole rotating arms are in linkage fit to realize the U-shaped and water drop shape combined track change of the movement track.
Example 1:
as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 11 and fig. 28, the triangle inward folding hinge for folding mobile phone with flexible screen disclosed in this embodiment includes a base 1 and a main control movable frame 2, two sides of the base 1 are provided with a first rotating arm 3 and a second rotating arm 4 which are symmetrically distributed, the first rotating arm 3 and the second rotating arm 4 are respectively linked with the base 1 and the main control movable frame 2, the first rotating arm 3 is linked with the second rotating arm 4, a connecting movable frame 5 is arranged at the outer end of the base 1, and the connecting movable frame 5 is linked with the second rotating arm 4; the base 1 is provided with a first curved slot 101 and a first sliding shaft 102, the first rotating arm 3 is provided with a second curved slot 301 and a second sliding shaft 302, the first sliding shaft 102 is in sliding fit with the second curved slot 301, and the second sliding shaft 302 is in sliding fit with the first curved slot 101 to realize track control. The base 1 is provided with third rotating arms 6 and connecting shafts 7 which are symmetrically distributed, and the third rotating arms 6 are in linkage fit with the main control movable frame 2. The main control movable frame is provided with a transverse straight groove 602, the third rotating arm 6 is provided with a transverse sliding column 601, and the transverse sliding column 601 slides in the transverse straight groove 602 to realize the rotary connection of the main control movable frame 2 and the third rotating arm 6. The connecting shaft 7 is connected with the third rotating arm 6 through a shaft, a concave wheel connecting plate 8 is arranged on the connecting shaft 7, the concave wheel connecting plate 8 is matched with a cam on the third rotating arm 6 in a concave-convex mode to achieve clamping point self-locking at the 0-degree position and the 180-degree position, and a spring 9 for achieving elastic force and torsion control is arranged on the connecting shaft 7. A plurality of groups of gears 12 are arranged between the third rotating arms 6, and the gears 12 are mutually meshed to realize 0-180-degree synchronous rotation. The two sides of the base 1 comprise connecting plates 10 for realizing connection positioning, and the tail end of the base also comprises connecting positioning connecting pieces 11. The main control movable frame 2 is provided with a transverse sliding groove 201, the second rotating arm 4 is provided with a fourth sliding shaft 403, the fourth sliding shaft 403 is in sliding fit with the transverse sliding groove 201 to realize the linkage of the main control movable frame 2 and the second rotating arm 4, the first rotating arm 3 is provided with a first rotating shaft 303, the second rotating arm 4 is provided with a first rotating hole 404, and the first rotating shaft 303 is in movable fit with the first rotating hole 404 to realize the lever type connection of the first rotating arm 3 and the second rotating arm 4.
Example 2:
as shown in fig. 1, fig. 2, fig. 5, fig. 6, fig. 11 and fig. 28, the triangle inward folding hinge for folding mobile phone with flexible screen disclosed in this embodiment includes a base 1 and a main control movable frame 2, two sides of the base 1 are provided with a first rotating arm 3 and a second rotating arm 4 which are symmetrically distributed, the first rotating arm 3 and the second rotating arm 4 are respectively linked with the base 1 and the main control movable frame 2, the first rotating arm 3 is linked with the second rotating arm 4, a connecting movable frame 5 is arranged at the outer end of the base 1, and the connecting movable frame 5 is linked with the second rotating arm 4; the base 1 is provided with a first curved slot 101 and a first sliding shaft 102, the first rotating arm 3 is provided with a second curved slot 301 and a second sliding shaft 302, the first sliding shaft 102 is in sliding fit with the second curved slot 301, and the second sliding shaft 302 is in sliding fit with the first curved slot 101 to realize track control. The base 1 is provided with third rotating arms 6 and connecting shafts 7 which are symmetrically distributed, and the third rotating arms 6 are in linkage fit with the main control movable frame 2. The main control movable frame is provided with a transverse straight groove 602, the third rotating arm 6 is provided with a transverse sliding column 601, and the transverse sliding column 601 slides in the transverse straight groove 602 to realize the rotary connection of the main control movable frame 2 and the third rotating arm 6. The connecting shaft 7 is connected with the third rotating arm 6 through a shaft, a concave wheel connecting plate 8 is arranged on the connecting shaft 7, the concave wheel connecting plate 8 is matched with a cam on the third rotating arm 6 in a concave-convex mode to achieve clamping point self-locking at the 0-degree position and the 180-degree position, and a spring 9 for achieving elastic force and torsion control is arranged on the connecting shaft 7. A plurality of groups of gears are arranged between the third rotating arms, and the gears are mutually meshed to realize 0-180-degree synchronous rotation. The two sides of the base 1 comprise connecting plates 10 for realizing connection positioning, and the tail end of the base also comprises connecting positioning connecting pieces 11. The main control movable frame 2 is provided with a second rotating hole 202, the second rotating arm 4 is provided with a second rotating shaft 405, the second rotating shaft 405 and the second rotating hole 202 are in running fit to realize the linkage of the main control movable frame 2 and the second rotating arm 4, the first rotating arm 3 is provided with a fifth sliding shaft 304, the second rotating arm 4 is provided with a horizontal sliding groove 406, and the fifth sliding shaft 304 and the horizontal sliding groove 406 are in sliding fit to realize the lever type connection of the first rotating arm 3 and the second rotating arm 4.
Example 3:
as shown in fig. 1, fig. 2, fig. 7, fig. 8, fig. 11 and fig. 28, the triangle inward folding hinge for folding mobile phone with flexible screen disclosed in this embodiment includes a base 1 and a main control movable frame 2, two sides of the base 1 are provided with a first rotating arm 3 and a second rotating arm 4 which are symmetrically distributed, the first rotating arm 3 and the second rotating arm 4 are respectively linked with the base 1 and the main control movable frame 2, the first rotating arm 3 is linked with the second rotating arm 4, a connecting movable frame 5 is arranged at the outer end of the base 1, and the connecting movable frame 5 is linked with the second rotating arm 4; the base 1 is provided with a first curved slot 101 and a first sliding shaft 102, the first rotating arm 3 is provided with a second curved slot 301 and a second sliding shaft 302, the first sliding shaft 102 is in sliding fit with the second curved slot 301, and the second sliding shaft 302 is in sliding fit with the first curved slot 101 to realize track control. The base 1 is provided with third rotating arms 6 and connecting shafts 7 which are symmetrically distributed, and the third rotating arms 6 are in linkage fit with the main control movable frame 2. The main control movable frame is provided with a transverse straight groove 602, the third rotating arm 6 is provided with a transverse sliding column 601, and the transverse sliding column 601 slides in the transverse straight groove 602 to realize the rotary connection of the main control movable frame 2 and the third rotating arm 6. The connecting shaft 7 is connected with the third rotating arm 6 through a shaft, a concave wheel connecting plate 8 is arranged on the connecting shaft 7, the concave wheel connecting plate 8 is matched with a cam on the third rotating arm 6 in a concave-convex mode to achieve clamping point self-locking at the 0-degree position and the 180-degree position, and a spring 9 for achieving elastic force and torsion control is arranged on the connecting shaft 7. The two sides of the base 1 comprise connecting plates 10 for realizing connection positioning, and the tail end of the base also comprises connecting positioning connecting pieces 11. A plurality of groups of gears are arranged between the third rotating arms, and the gears are mutually meshed to realize 0-180-degree synchronous rotation. The main control movable frame 2 is provided with a longitudinal sliding groove 203, the second rotating arm 4 is provided with a sixth sliding shaft 407, the sixth sliding shaft 407 is in sliding fit with the longitudinal sliding groove 203 to realize the linkage of the main control movable frame 2 and the second rotating arm 4, the first rotating arm 3 is provided with a middle sliding groove 305, the second rotating arm 4 is provided with a middle sliding block 408, and the middle sliding block 408 is in relative sliding fit in the middle sliding groove 305 to realize the push-pull connection of the first rotating arm 3 and the second rotating arm 4.
Example 4:
as shown in fig. 1, fig. 2, fig. 9, fig. 10, fig. 11 and fig. 28, the triangle inward folding hinge for folding mobile phone with flexible screen disclosed in this embodiment includes a base 1 and a main control movable frame 2, two sides of the base 1 are provided with a first rotating arm 3 and a second rotating arm 4 which are symmetrically distributed, the first rotating arm 3 and the second rotating arm 4 are respectively linked with the base 1 and the main control movable frame 2, the first rotating arm 3 is linked with the second rotating arm 4, a connecting movable frame 5 is arranged at the outer end of the base 1, and the connecting movable frame 5 is linked with the second rotating arm 4; the base 1 is provided with a first curved slot 101 and a first sliding shaft 102, the first rotating arm 3 is provided with a second curved slot 301 and a second sliding shaft 302, the first sliding shaft 102 is in sliding fit with the second curved slot 301, and the second sliding shaft 302 is in sliding fit with the first curved slot 101 to realize track control. The base 1 is provided with third rotating arms 6 and connecting shafts 7 which are symmetrically distributed, and the third rotating arms 6 are in linkage fit with the main control movable frame 2. The main control movable frame is provided with a transverse straight groove 602, the third rotating arm 6 is provided with a transverse sliding column 601, and the transverse sliding column 601 slides in the transverse straight groove 602 to realize the rotary connection of the main control movable frame 2 and the third rotating arm 6. The connecting shaft 7 is connected with the third rotating arm 6 through a shaft, a concave wheel connecting plate 8 is arranged on the connecting shaft 7, the concave wheel connecting plate 8 is matched with a cam on the third rotating arm 6 in a concave-convex mode to achieve clamping point self-locking at the 0-degree position and the 180-degree position, and a spring 9 for achieving elastic force and torsion control is arranged on the connecting shaft 7. The two sides of the base 1 comprise connecting plates 10 for realizing connection positioning, and the tail end of the base also comprises connecting positioning connecting pieces 11. A plurality of groups of gears are arranged between the third rotating arms 6, and the gears are mutually meshed to realize 0-180-degree synchronous rotation. The main control movable frame 2 is provided with a special-shaped groove 204, the second rotating arm 4 is provided with a sixth sliding shaft 407, the sixth sliding shaft 407 is in sliding fit with the special-shaped groove 204 to realize the linkage of the main control movable frame 2 and the second rotating arm 4, the first rotating arm 3 is provided with a middle sliding groove 305, the second rotating arm 4 is provided with a middle sliding block 408, the middle sliding block 408 is in relative sliding fit in the middle sliding groove 305 to realize the push-pull connection of the first rotating arm 3 and the second rotating arm 4, and the groove body of the special-shaped groove 204 consists of an integral straight groove and a curved groove.
In the above embodiments 1 to 4, the connection manner between the first swing arm 3 and the main control movable frame 2 includes, but is not limited to, the following:
scheme 1: as shown in fig. 12, the first rotating arm 3 and the main control movable frame 2 are in linkage through the rotation fit of a semicircular shaft 801 and a semicircular arc 802.
Scheme 2: as shown in fig. 13, the first rotating arm 3 and the main control movable frame 2 are in linkage through the rotation fit of the round shaft 803 and the round hole 901.
Scheme 3: as shown in fig. 14, 15 and 16, the first rotating arm 3 and the main control movable frame 2 are in sliding fit with each other through the arrangement of the nails 805 and the grooves 806. The nail slots are matched and defaulted into two groups, but the positions of the nails 805 and the slots 806 can be randomly allocated on the first rotating arm 3 and the main control movable frame 2, namely: two schemes on the same side of the nail groove or two schemes on different sides of the nail groove can be designed.
Scheme 4: as shown in fig. 17, a sliding block 444 is arranged between the first rotating arm 3 and the main control movable frame 2, the sliding block 444 is rotatably connected with the first rotating arm 3, the sliding block 444 is slidably connected with the main control movable frame 2, and the first rotating arm 3 is slidably connected with the main control movable frame 2 through a pin 805 and a groove 806.
Scheme 5: as shown in fig. 18, the first rotating arm 3 is provided with a single shaft 445, the single shaft 445 is slidably connected with the first rotating arm 3, the single shaft 445 is fixedly connected with the main control movable frame 2, and the first rotating arm 3 is slidably connected with the main control movable frame 2 through a set nail 805 and a groove 806.
Scheme 6: as shown in fig. 19, a crossed cross link 446 is provided between the first rotating arm 3 and the main control movable frame 2 to realize a rotating connection.
In the above embodiments 1-4, the connection manner of the connection end control length of the second rotating arm 4 includes, but is not limited to, the following structural design method:
method 1: as shown in fig. 23, the second rotating arm 4 has a circular hole 901 at one end and a semicircular shaft 801 at the other end.
Method 2: as shown in fig. 24, one end of the second rotating arm 4 is provided with a round hole 901, and two sides of the other end are respectively provided with a semicircular shaft 801 and an arc-shaped groove 902.
Method 3: as shown in fig. 25, a circular hole 901 is formed at one end of the second rotating arm 4, and a linear groove 903 and a rotating post 904 are respectively formed at both sides of the other end.
Method 4: as shown in fig. 26 and 27, one end of the second rotating arm 4 is provided with a round hole 901, two sides of the other end are respectively provided with a penetrating curved slot 905 and a rotating column 904, and the position of the rotating column 904 is adjustable.
Method 5: as shown in fig. 28, the second rotating arm is provided with a circular hole 901 at one end and a rack 906 for engagement at the other end.
Besides the above five methods, the structure changes of the second rotating arm, the main control movable frame and the connecting movable frame can be combined to flexibly adopt matched structure designs of a movable toothed bar (including a gear and connecting rod structure), a double connecting bar (including a front double round shaft, a front round shaft and a nail slot), a round shaft lever, a round moving bar (including a double round moving bar), a cross connecting bar and the like, in the process of using the mechanism designs, corresponding adjustment needs to be made on the base (or the connecting movable frame) and the structural members on the main control movable frame, which are related to the second rotating arm, because the structure differences are different from the structural features appearing in the embodiment, the connecting structure of the second rotating arm is not described in detail in the embodiment, but a person skilled in the art can clearly determine that the linkage mode is equivalent replacement application, and the length control mode specifically disclosed in the embodiment is the same structure design.
In the above embodiments 1 to 4, the connection manner between the connection movable frame 5 and the second rotating arm 4 includes, but is not limited to, the following three types:
scheme 1: as shown in fig. 20, a third curved slot 501 is provided on the connecting movable frame 5, a third sliding shaft 401 is provided on the second rotating arm 4, and the third sliding shaft 401 and the third curved slot 501 are in sliding fit to realize the linkage of the connecting movable frame 5 and the second rotating arm 4.
Scheme 2: as shown in fig. 22, a longitudinal sliding shaft 502 is disposed on the connecting movable frame 5, a longitudinal sliding groove 402 is disposed on the second rotating arm 4, and the longitudinal sliding shaft 502 and the longitudinal sliding groove 402 are in sliding fit to realize linkage between the connecting movable frame 5 and the second rotating arm 4.
Scheme 3: as shown in fig. 21, a connecting rod 6610 for realizing linkage engagement is provided between the connecting movable frame 5 and the second rotating arm 4.
The above-described embodiment differs from the conventional art in that:
synchronous bending in the range of 0-180 degrees of rotation control is completed after the front-section stroke is controlled to be in a U-shaped mimicry and changed to the rear-section stroke is in a water-drop-shaped mimicry through the main shaft, when the hinge is combined with the flexible screen for application, rubberizing of a bending area can be achieved, compared with rubberizing outside the bending area of a traditional mechanism, pulling of the screen can be effectively reduced, folds are eliminated, dimensional space is reduced, dust and particles enter the inner space of the screen is reduced, and service life is prolonged. The curve groove of the first rotating arm is matched with the curve groove to realize track control, the second rotating arm is randomly set to comprise two motion modes of a lever type and a push-pull type, the shaft moves along the track of the chute to realize 0-180-degree synchronous rotation, the shaft rotates along the track of the arc chute, the arc chute at two ends rotates with the arc sliding block to realize 0-180-degree rotation, the sliding column is movably matched along the track of the curve groove to realize 0-180-degree synchronous rotation, and the rotating mechanism integrally realizes a linked novel water drop form bending track.
The foregoing is only illustrative of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, so that all equivalent changes or modifications to the structure, features and principles of the present invention will be made by those skilled in the art without departing from the spirit of the invention.
Claims (12)
1. The triangle-shaped internal folding hinge that folding cell-phone of flexible screen was not folded to the crease, its characterized in that: the device comprises a base and a main control movable frame, wherein first rotating arms and second rotating arms which are symmetrically distributed are arranged on two sides of the base, the first rotating arms and the second rotating arms are respectively linked with the base and the main control movable frame, the first rotating arms and the second rotating arms are mutually linked, a connecting movable frame is arranged at the outer end of the base, and the connecting movable frame is in linkage fit with the second rotating arms;
the base is provided with a first curve groove and a first sliding shaft, the first rotating arm is provided with a second curve groove and a second sliding shaft, the first sliding shaft is in sliding fit with the second curve groove, and the second sliding shaft is in sliding fit with the first curve groove to realize track control;
a third curve groove is formed in the connecting movable frame, a third sliding shaft is arranged on the second rotating arm, and the third sliding shaft is in sliding fit with the third curve groove; or a longitudinal sliding shaft is arranged on the connecting movable frame, a longitudinal sliding groove is arranged on the second rotating arm, and the longitudinal sliding shaft is in sliding fit with the longitudinal sliding groove; or a connecting rod for realizing linkage fit is directly arranged between the connecting movable frame and the second rotating arm;
the linkage relation between the first rotating arm and the second rotating arm is one of the following modes:
mode (1): the main control movable frame is provided with a transverse sliding groove, the second rotating arm is provided with a fourth sliding shaft, the fourth sliding shaft is in sliding fit with the transverse sliding groove to realize linkage of the main control movable frame and the second rotating arm, the first rotating arm is provided with a first rotating shaft, the second rotating arm is provided with a first rotating hole, and the first rotating shaft is in rotating fit with the first rotating hole to realize lever type connection of the first rotating arm and the second rotating arm;
mode (2): the main control movable frame is provided with a second rotating hole, the second rotating arm is provided with a second rotating shaft, the second rotating shaft is in running fit with the second rotating hole to realize linkage of the main control movable frame and the second rotating arm, the first rotating arm is provided with a fifth sliding shaft, the second rotating arm is provided with a transverse sliding groove, and the fifth sliding shaft is in sliding fit with the transverse sliding groove to realize lever type connection of the first rotating arm and the second rotating arm;
mode (3): the main control movable frame is provided with a longitudinal sliding groove, the second rotating arm is provided with a sixth sliding shaft, the sixth sliding shaft is in sliding fit with the longitudinal sliding groove to realize linkage of the main control movable frame and the second rotating arm, the first rotating arm is provided with an intermediate sliding groove, the second rotating arm is provided with an intermediate sliding block, and the intermediate sliding block is in sliding fit with the intermediate sliding groove relatively to realize push-pull connection of the first rotating arm and the second rotating arm;
mode (4): the main control movable frame is provided with a special-shaped groove, the second rotating arm is provided with a sixth sliding shaft, the sixth sliding shaft is in sliding fit with the special-shaped groove to realize linkage of the main control movable frame and the second rotating arm, the first rotating arm is provided with an intermediate sliding groove, the second rotating arm is provided with an intermediate sliding block, and the intermediate sliding block is in relative sliding fit with the intermediate sliding groove to realize push-pull connection of the first rotating arm and the second rotating arm.
2. The triangle inward folding hinge of a flexible screen folding mobile phone without crease folding according to claim 1, wherein: the groove body of the special-shaped groove consists of an integrated straight groove and an integrated curve groove.
3. The triangle inward folding hinge of a flexible screen folding mobile phone without crease folding according to claim 1, wherein: the first rotating arm and the main control movable frame are in linkage through the rotation fit of a semicircular shaft and a semicircular arc.
4. The triangle inward folding hinge of a flexible screen folding mobile phone without crease folding according to claim 1, wherein: and the first rotating arm and the main control movable frame are in linkage through the rotation fit of the round shaft and the round hole.
5. The triangle inward folding hinge of a flexible screen folding mobile phone without crease folding according to claim 1, wherein: and the first rotating arm and the main control movable frame are in sliding fit with each other through the nails and the grooves.
6. The triangle inward folding hinge of a flexible screen folding mobile phone without crease folding according to claim 1, wherein: the sliding block is arranged between the first rotating arm and the main control movable frame, the sliding block is connected with the first rotating arm in a rotating mode, the sliding block is connected with the main control movable frame in a sliding mode, and the first rotating arm is connected with the main control movable frame in a sliding mode through nails and grooves.
7. The triangle inward folding hinge of a flexible screen folding mobile phone without crease folding according to claim 1, wherein: the first rotating arm is provided with a single shaft, the single shaft is in sliding connection with the first rotating arm, the single shaft is fixedly connected with the main control movable frame, and the first rotating arm is in sliding connection with the main control movable frame through a nail and a groove.
8. The triangle inward folding hinge of a flexible screen folding mobile phone without crease folding according to claim 1, wherein: the first rotating arm is connected with the main control movable frame in a rotating way through a crossed cross connecting rod.
9. The triangle inward folding hinge of a flexible screen folding mobile phone without crease folding according to claim 1, wherein: the base is provided with third rotating arms and connecting shafts which are symmetrically distributed, and the third rotating arms are in linkage fit with the main control movable frame.
10. The triangle inward folding hinge of a flexible screen folding mobile phone without crease folding according to claim 9, wherein: the main control movable frame is provided with a transverse straight groove, the third rotating arm is provided with a transverse sliding column, and the transverse sliding column slides in the transverse straight groove to realize the rotary connection of the main control movable frame and the third rotating arm.
11. The triangle inward folding hinge of a flexible screen folding mobile phone without crease folding according to claim 9, wherein: the connecting shaft is connected with the third rotating arm through a shaft, a concave wheel connecting plate is arranged on the connecting shaft, the concave wheel connecting plate is matched with a cam on the third rotating arm in a concave-convex mode to achieve clamping point self-locking at the positions of 0 degrees and 180 degrees, and springs for achieving elastic force and torsion control are arranged on the connecting shaft.
12. The triangle inward folding hinge of a flexible screen folding mobile phone without crease folding according to claim 9, wherein: and a plurality of groups of gears are arranged between the third rotating arms, and the gears are mutually meshed to realize 0-180-degree synchronous rotation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211357454.5A CN115823103B (en) | 2022-11-01 | 2022-11-01 | Triangle inward folding hinge for folding mobile phone with flexible screen and without crease |
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| CN202211357454.5A CN115823103B (en) | 2022-11-01 | 2022-11-01 | Triangle inward folding hinge for folding mobile phone with flexible screen and without crease |
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| CN116668569B (en) * | 2023-05-10 | 2024-04-09 | 东莞市劲丰电子有限公司 | Integrated inward folding hinge for flexible screen folding mobile phone application |
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| CN215634347U (en) * | 2020-11-16 | 2022-01-25 | 东莞市劲丰电子有限公司 | U-shaped inward-folding rotating mechanism with interactive bending of chute |
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| CN213929135U (en) * | 2020-11-07 | 2021-08-10 | 东莞市劲丰电子有限公司 | U-shaped inward-folding rotating mechanism with four-shaft sliding grooves |
| CN115199636A (en) * | 2021-04-09 | 2022-10-18 | 深圳市富世达通讯有限公司 | Double-shaft hinge |
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| CN113053238A (en) * | 2019-12-27 | 2021-06-29 | 华为技术有限公司 | Flexible screen and foldable equipment |
| CN111552353A (en) * | 2020-06-08 | 2020-08-18 | 东莞市劲丰电子有限公司 | Arc inward-folding rotating mechanism applied to large-size flexible screen |
| CN112503085A (en) * | 2020-11-16 | 2021-03-16 | 东莞市劲丰电子有限公司 | U-shaped internal folding rotating mechanism with balance wheel sliding groove |
| CN215634347U (en) * | 2020-11-16 | 2022-01-25 | 东莞市劲丰电子有限公司 | U-shaped inward-folding rotating mechanism with interactive bending of chute |
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