CN110594279B - Pitch-changing device and folding display device - Google Patents
Pitch-changing device and folding display device Download PDFInfo
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- CN110594279B CN110594279B CN201910789229.0A CN201910789229A CN110594279B CN 110594279 B CN110594279 B CN 110594279B CN 201910789229 A CN201910789229 A CN 201910789229A CN 110594279 B CN110594279 B CN 110594279B
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- seat
- folding
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- 230000005540 biological transmission Effects 0.000 claims abstract description 30
- 238000004891 communication Methods 0.000 claims abstract description 10
- 230000013011 mating Effects 0.000 claims description 11
- 238000005452 bending Methods 0.000 claims description 10
- 230000007246 mechanism Effects 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims 2
- 239000011148 porous material Substances 0.000 claims 1
- 238000013016 damping Methods 0.000 description 24
- 238000005192 partition Methods 0.000 description 17
- 230000003014 reinforcing effect Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/045—Pivotal connections with at least a pair of arms pivoting relatively to at least one other arm, all arms being mounted on one pin
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Telephone Set Structure (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
The distance changing device comprises a rotating seat rotationally fixed on the main shaft, a transmission part assembled on the rotating seat and capable of moving in the transverse direction of the rotating seat, a connecting seat sleeved on the rotating seat and capable of moving in the transverse direction of the rotating seat, a driving rod rotationally matched with the main shaft and driving the transmission part and a linkage rod, wherein the rotating seat and the rotating plate are also provided with a first meshing part and a second meshing part which are in sliding fit with each other, the linkage rod is sequentially provided with a first rotating branch part, a second rotating branch part and a third rotating branch part which are rotationally fixed on the rotating seat, the connecting seat and the transmission part, a communication hole is arranged at the position of the rotating seat corresponding to the linkage rod, and a flat spring is also connected between the connecting seat and the rotating seat; the application further comprises a folding display device.
Description
Technical Field
The application relates to the field of communication electronics, in particular to a distance changing device and a folding display device.
Background
With the development of the folding screen technology, the folding screen mobile phone has become a hot spot technology. While the folding screen can be folded, 180-degree bending still cannot be realized, and the folded part still needs to keep a certain R angle, so that the screen is damaged. The existing folding mode is divided into an inward folding mode and an outward folding mode, namely, the folded screen is positioned on the inner side or the outer side, if the folded screen is the released Mate X, the outward folding is the outward folding, but the outward folding is that the screen is in an exposed state and is easily scratched by hard objects, and the folded screen is fragile.
The problem to be solved is how to ensure that the folding screen is folded in an outward folding manner or an inward folding manner, and how to adapt the bending mechanism to the R angle radian required by the bending part of the screen, at this time, the inner side of the bending part of the folding screen can be shortened slightly, the outer side of the folding screen can be lengthened slightly, at this time, the components which are clung to the folding screen must be synchronously changed, otherwise, the screen is crushed. And guarantee that there is the support folding screen back, otherwise unsettled screen can cause the damage when pressing down with the finger. Patent application 201920305522.0 of the people's republic of China discloses a folding display device, wherein the disclosed folding plates are fixed at two ends due to longer length, and when folding, the folding plates are easy to fold and warp, so that the folding plates cannot be kept flat.
Disclosure of Invention
In view of the above, it is necessary to provide a distance changing device and a folding display device, in which the distance changing device changes when the folding display device is in an unfolded and folded state to accommodate the problem that the inner and outer side lengths of the folding screen become smaller and the outer side length becomes larger after folding, so that the folding screen may be damaged.
In order to solve the technical problems, the application provides a distance-changing device which is assembled on a folding hinge, wherein the folding hinge comprises a main shaft and rotating plates hinged to two lateral sides of the main shaft and capable of being folded around the main shaft, the distance-changing device comprises a rotating seat rotationally fixed on the main shaft, a transmission piece assembled on the rotating seat and capable of moving in the lateral direction of the rotating seat, a connecting seat sleeved on the rotating seat and capable of moving along the lateral direction of the rotating seat, a driving rod rotationally matched with the main shaft and driving the transmission piece, and a linkage rod, the rotating seat and the rotating plates are also provided with a first engaging part and a second engaging part which are in sliding fit with each other, the linkage rod is sequentially provided with a first rotating support part, a second rotating support part and a third rotating support part which are rotationally fixed on the rotating seat, the connecting seat and the transmission piece, a communication hole is arranged at the position of the rotating seat, a flat spring is also connected between the connecting seat and the rotating seat, the connecting seat is rotationally driven by the rotating seat, the rotating plate and the driving rod are rotationally matched with the driving rod and the driving rod, and the driving rod is rotationally matched with the rotating seat, and the driving rod is driven by the connecting rod to move along the lateral direction of the rotating seat, and the rotating seat is driven by the driving rod to move along the lateral direction.
Preferably, the folding hinge further comprises a plurality of strip bodies arranged between the main shaft and the rotating plate, the strip bodies are hinged with each other, and two strip bodies at the outermost side are hinged with the main shaft and the rotating plate respectively.
Preferably, the rotating seat comprises a seat body, a rotating part which is formed by extending from the seat body and is rotationally fixed on the main shaft, and a matching part which is formed by recessing the seat body and extends in a direction away from the rotating part; the mating portion includes a portion formed on the base and a portion extending outwardly from a lateral edge of the base.
Preferably, the matching portion includes a receiving portion formed by recessing and used for assembling the transmission member, a limiting portion formed by extending from two longitudinal sides of the receiving portion and then bending and extending relatively, a matching flange formed at two longitudinal sides of the receiving portion and used for matching with the connecting seat, and a first rotating matching portion used for fixing the first rotating support portion.
Preferably, the first engaging portion is disposed on the base and located at a back surface of the accommodating portion, and a column for fixing the flat spring is further disposed on the back surface of the base.
Preferably, the transmission piece comprises a plate body part, a fastening hole which is arranged on the plate body part and is provided with a first opening at the transverse outer side, and a third rotating matching part which is arranged at one end of the plate body part far away from the fastening hole so as to rotationally fix the third rotating branch part; the driving rod comprises a driving end which is rotationally arranged at the upper shaft end of the main shaft and is buckled in a buckling hole of the transmission piece.
Preferably, the connecting seat comprises a main body part and a matching groove which is formed by extending upwards from two longitudinal sides of the main body part and then vertically bending and extending relatively and matched with the matching flange of the rotating seat in a sliding manner, the connecting seats positioned on two transverse sides of the main shaft are respectively fixed with a shell, and the shells on two sides of the main shaft rotate through folding operation of a user so as to drive the connecting seats to rotate.
Preferably, a rubber sleeve is adhered in the matching groove, a track groove is formed in the rubber sleeve, and the matching flange is inserted in the track groove and can slide.
Preferably, the connecting seat further comprises a riveting column arranged on the inner surface of the main body part and used for fixing the flat spring, and a second rotating matching part arranged at the rear end of the inner surface of the main body part and used for rotationally limiting the second rotating branch part.
Preferably, the transmission piece further comprises a mounting cavity arranged between the fastening hole and the third rotating matching part, a second opening is formed in the mounting cavity towards the limiting part of the rotating seat, a state control piece is arranged in the mounting cavity, and a state control groove matched with the state control piece is formed in the limiting part corresponding to the second opening.
Preferably, the state control member comprises a base body part arranged in the mounting cavity, a supporting end part extending out of the second opening of the mounting cavity from the base body part, and an elastic member clamped between one end of the base body part and the inner wall of the mounting cavity, the state control groove comprises an unfolding state groove and a closing state groove, and the supporting end part is respectively supported in the unfolding state groove and the closing state groove in the unfolding state and the closing state.
Preferably, the transmission part is provided with a position avoiding part at a position corresponding to the second rotating matching part of the connecting seat, the linkage rod can rotate in the communication hole, and the width of the communication hole on one side of the third rotating branch part of the linkage rod is larger than the width of the communication hole on one side of the first rotating branch part.
In order to solve the technical problem, the application also provides a folding display device which comprises the distance changing device and a synchronizing mechanism assembled on the folding hinge.
According to the distance changing device and the folding display device, the rotating seat, the transmission piece, the connecting seat, the driving rod and the linkage rod for linking the rotating seat, when the connecting seat rotates, the driving rod naturally rotates to drive the transmission piece to move on the rotating seat, and further the position between the connecting seats at two sides of the folding hinge is changed through linkage of the linkage rod, so that the length change of the inner cambered surface and the outer cambered surface caused by folding of the folding screen is regulated, and damage is avoided.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application.
FIG. 1 is a perspective view of a foldable display device according to the present application;
FIG. 2 is another perspective view of the folding display device of the present application;
FIG. 3 is an expanded view and partial enlarged view of the hinge strip of the folding hinge of the present application;
FIG. 4 is a perspective view and partial enlarged view of the principal axis of the hinge strip of the folding hinge of the present application;
FIG. 5 is an expanded view of the fixing device of the folding hinge of the present application;
FIG. 6 is a perspective view of a first securing member of the securing device of the folding hinge of the present application;
FIG. 7 is a perspective view of a second securing member of the securing device of the folding hinge of the present application;
FIG. 8 is a perspective view and partial enlarged view of the folding hinge of the present application;
FIG. 9 is an exploded perspective view of the folding display device of the present application;
FIG. 10 is an exploded perspective view of a pitch device of the folding display device of the present application;
FIG. 11 is a perspective view of a rotating plate of a distance varying device of the folding display device of the present application;
FIG. 12 is a perspective view of a rotary plate of a pitch device of a folding display device according to another aspect of the present application;
FIG. 13 is a perspective view of a slider of a pitch device of a folding display device of the present application;
FIG. 14 is a perspective view of another angle of the slider of the pitch device of the folding display device of the present application;
FIG. 15 is a perspective view of a connecting plate of a pitch device of a folding display device of the present application;
FIG. 16 is a perspective view and a partial enlarged view of the folding display device of the present application in a folded state;
fig. 17 is a perspective view and a partial enlarged view of a part of components removed when the folding display device of the present application is in a folded state.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be clearly and completely described below with reference to specific embodiments of the present application and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Referring to fig. 1 and 2 with emphasis, the folding display device of the present application includes a folding hinge, a synchronizing mechanism 30 assembled on the folding hinge, and a distance-varying device 40 hinged on the folding hinge.
With continued reference to fig. 1 to 8 and 16, the folding hinge includes a plurality of hinge strips 10 hinged to each other at two ends, a fixing device 20 for fixing the hinge strips 10, and a reinforcing rod 15.
The hinge 10 comprises a main shaft 11 in the middle, at least one bar body 12 hinged to two sides of the main shaft 11 respectively, and a rotating plate 13 hinged to the outer side of the bar body 12.
The main shaft 11 includes a shaft body 111, a fixing groove 112, a gear groove 114, a damping groove 115, a first partition 117 between the fixing groove 112 and the gear groove 114, a second partition 118 between the gear groove 114 and the damping groove 115, and a third partition 119 outside the damping groove 115, which are disposed in order on both sides of the shaft body 111.
The inner side surface of the fixing groove 112 of the main shaft 11 is in the same horizontal plane with the inner side surfaces of the bar body 1 and the rotating plate 13, the hinge bars 10 are respectively protruded in the transverse direction of the fixing groove 112 to form protruding blocks 101, and the protruding blocks 101 are provided with screw holes 102. The main shaft 11, the bar 12 and the projection 101 on the rotating plate 13 are in the same straight line in the transverse direction.
Referring to fig. 2 and 16, the free end of the main shaft 11 protrudes outwards to form a hinge portion 127, hinge grooves 128 are formed on two lateral sides of the hinge portion 127, hinge protrusions 129 and hinge grooves 135 hinged in the hinge grooves 128 are formed on two lateral sides of the free end of the bar 12 of the main shaft 11, and hinge protrusions hinged in the hinge grooves 135 of the bar 12 are formed on the free end of the rotating plate 13. The hinge grooves 128, 135 are movably hinged with the hinge projections 129 by bolts (not numbered). Two sides of the main shaft 11 are respectively hinged with two strip-shaped bodies 12 and a rotating plate 13 in sequence. The hinge structure design of the free end of the hinge strip 10 is described in detail in CN201920305522.0, which is not described in detail herein.
The fixing device 20 includes a fixing female seat 21 and a fixing male seat 22 cooperating with the fixing female seat 21 for rotation. The fixed female seat 21 and the fixed male seat 22 each comprise a seat base 211, a lower avoidance portion 212 arranged at the bottom of the seat base 211 to accommodate the bump 101, an upper avoidance portion 213 arranged at the top of the seat base 211, and a screw hole 214 penetrating through the seat base 211 and communicating with the upper and lower avoidance portions 212, 213. The two longitudinal ends of the base 211 of the fixed female base 21 are respectively extended to form a lower limit portion 215, an upper limit portion 216 and an arc-shaped slot 217 between the upper limit portion 215 and the lower limit portion 216, the upper limit portion 215 and the lower limit portion 216 at the two longitudinal ends of the fixed female base 21 are respectively extended in opposite directions in the transverse direction, that is, the extending directions of the arc-shaped slots 217 at the two longitudinal ends of the fixed female base 21 are opposite, and are symmetrically arranged. The fixed male seat 22 further includes an arc block 219 extending from two longitudinal ends of the seat base 211, the arc block 219 is matched with the arc slot 217, and the arc blocks 219 at two longitudinal ends of the fixed male seat 22 extend in opposite directions in a transverse direction and are arranged in a point-symmetrical manner. The arcuate block 219 snaps into the arcuate slot 217 and is rotatable within the arcuate slot 217.
The fixing female seat 21 and the fixing male seat 22 of the fixing device 20 are screwed on the protruding block 101 of the hinge strip 10 by bolts or screws (not shown), the protruding block 101 is fitted into the lower avoidance portion 212, the bolts pass through the screw holes 214 and are locked in the screw holes 102 on the protruding block 101, and the nut portions of the bolts are accommodated in the upper avoidance portion 213. The bump 101 of the main shaft 11 is provided with a fixed female seat 21, the strip-shaped body 12 adjacent to the main shaft 11 is provided with a fixed male seat 22 matched with the fixed female seat 21, and so on, the rotating plate 13 positioned at the outermost side is fixedly provided with a fixed female seat 21 or a fixed male seat 22, but the fixed female seat 21 or the fixed male seat 22 fixed on the rotating plate 13 only needs to be provided with an arc-shaped groove 217 or an arc-shaped block 219 at one longitudinal end of the seat 211.
Referring to fig. 4 and 8, after the fixing groove 112 of the main shaft 11 is recessed, a connecting portion 113 is formed at the bottom of the fixing groove 112, and the inner surface of the connecting portion 113 and the inner surfaces of the bar 12 and the rotating plate 13 are on the same horizontal plane in the unfolded state. The thickness of the connecting portion 113 is relatively thin, the force required to be carried by the spindle 11 is relatively large, and the strength of the connecting portion 113 is insufficient to support, so that a fixing hole 120 is formed at a position corresponding to the shaft body 111 and the first partition portion 117 at both sides of the fixing slot 112, a reinforcing rod 15 is disposed above the fixing slot 112, both ends of the reinforcing rod 15 are fixed in the fixing hole 120, and the reinforcing rod 15 is located above the fixing device 20.
The outer surface of the folding hinge is folded outwards by adhering a folding plate to a folding screen, and the folding plate is fixed on the distance changing device 40.
According to the folding hinge, at least one group of fixing devices 20 for fixing the main shaft 11, the strip body 12 and the rotating plate 13 are arranged at the middle position, the fixing devices 20 realize flatness of the main shaft 11, the strip body 12 and the rotating plate 13 at the middle position through mutual rotation of the fixing female seat 21 and the fixing male seat 22, and the problem that the main shaft 11, the strip body 12 and the rotating plate 13 of the folding hinge cannot keep relative positions to generate concave and convex is avoided.
Referring to fig. 1,2, 4, 9 and 10, the synchronization mechanism 30 of the present application is assembled on the spindle 11, and the synchronization mechanism 30 includes at least a pair of rotating shafts 31 and gears 35 respectively fixed on the pair of rotating shafts 31.
The first and second partition portions 117, 118 at two longitudinal ends of the gear slot 114 of the main shaft 11 are respectively provided with a pair of shaft holes 121 arranged transversely in the transverse direction, two lateral sides of the gear slot 114 are provided with protection portions 122 covering the lateral sides of the gear slot 114, and two lateral sides of the gear slot 114, which are close to the first partition portion 117, are provided with notches 1141 for connecting the pitch changing device 40.
The pair of rotating shafts 31 are respectively sleeved in the pair of shaft holes 121, the pair of gears 35 are fixed on the pair of rotating shafts 31 and positioned in the gear grooves 114, and the pair of gears 35 are meshed with each other. When the pair of rotating shafts 31 are driven by the distance changing device 40 to rotate, the gears move along with the relative movement of the rotating shafts 31, so that the pair of rotating shafts 31 realize the synchronization of the rotation amplitude, and the damage to the folding screen caused by inconsistent rotation amplitudes at two sides of the folding screen is avoided.
The folded inner side surface of the longitudinal free end of the main shaft 11 is cut to form a notch 125, and the third partition 119 is correspondingly positioned to penetrate a part of the shaft hole 121, that is, the shaft hole 121 penetrates the third partition 119 in the longitudinal direction, and the second partition 118 is penetrated regardless of the first partition 117. The pair of shaft holes 121 are respectively on the same straight line. The second partition portion 118 is located at one side of the damping slot 115 and protrudes to form a resisting portion 123, the shaft hole 121 is at least partially located and penetrates through the resisting portion 123, and the second partition portion 118 is located at one side of the damping slot 115 and located at an outer edge of the resisting portion 123 and is provided with a rotation hole 124. A pair of arc-shaped grooves 126 are formed at the cut-out portions 125 corresponding to the lower portions of the shaft holes 121, respectively. The blocking portion 123 may be formed to extend longitudinally from the third partition portion 119 on the side of the damping groove 115.
The damping groove 115 is internally provided with a spring 32 sleeved outside the rotating shaft 31, a first damping block 33 sleeved outside the rotating shaft 31, and a second damping block 34 fixed on the rotating shaft 31 and matched with the first damping block 33. The spring 32 is clamped between the third partition 119 and the first damping block 33, and the rear end of the second damping block 34 abuts against the abutment 123. The first damping block 33 includes a main body (not shown) integrally connected, a through hole (not shown) formed on two lateral sides of the main body for the two rotating shafts 31 to pass through, and a concave-convex matching structure formed on one longitudinal side of the through hole, i.e. the first damping block 33 is integrally sleeved on the rotating shafts 31. The two second damping blocks 34 are respectively fixed on the rotating shaft 31 and rotate along with the rotation of the rotating shaft 31, the second damping blocks 34 are provided with corresponding concave-convex matching structures corresponding to the concave-convex matching structures of the first damping blocks 33, and the elastic pressure of the springs 32 enables the concave-convex matching structures of the first damping blocks 33 and the second damping blocks 34 to mutually match to generate staged resistance or assistance, so that hovering at different positions in the folding process of the folding screen is realized, and a better user experience effect is generated.
Referring to fig. 4 and fig. 9 to fig. 15, the distance-varying device 40 includes a rotating base 41, a driving rod 46 rotatable in a rotation hole 124 of the main shaft 11, a driving member 47 disposed in the rotating base 41 and driven by the driving rod 46, a connecting base 43 movable relative to the rotating base 41, and a linkage rod 44 for driving the driving member 47 to move the connecting base 43.
Referring to fig. 10 to 12, the rotary seat 41 includes a seat 411, a rotating portion 412 extending from a lateral side of the seat 411 and fixed to the rotary shaft 31, a mating portion 415 concavely formed on the seat 411 and extending away from the rotating portion 412, and a first engaging portion 416 formed on a back surface of the seat 411 opposite to the mating portion 415. The engaging portion 415 is partially recessed on the base 411, and partially extends from the base 411. The engaging portion 415 includes a recessed accommodating portion 421, a limiting portion 422 extending upward from two sides of the accommodating portion 421 in the longitudinal direction and then being bent and extended relatively, engaging flanges 423 formed on outer edges of two sides of the accommodating portion 421 in the longitudinal direction, a communicating hole 424 penetrating through the accommodating portion 421, a first rotating engaging portion 425 penetrating through the engaging portion 415 and located at one end of the communicating hole 424 in the longitudinal direction, a state control slot 426 formed on one limiting portion 422, and a column 427 disposed on the back of the base 411. The communication hole 424 includes a narrow portion 4242 on the side of the first rotation engagement portion 425 and a wide portion 4241 on the side away from the first rotation engagement portion 425, the wide portion 4241 having a width larger than that of the narrow portion 4242. The state control slot 426 includes an extended state slot 4261, a closed state slot 4262, and a spacer tab 4263 between the extended state slot 4261 and the closed state slot 4262.
The drive rod 46 includes a shaft end 461 rotatable about the rotation hole 124 and a drive end 462 that mates with the driving member 47. The shaft end 461 includes a shaft structure extending toward one side in the longitudinal direction and sleeved in the rotation hole 124, the shaft end 461 is located at the outer side of the resisting portion 123, a gap exists between the shaft end 461 and the second damping block 34, and the second damping block 34 does not interfere with the rotation of the shaft end 461. The driving end 462 includes a cylindrical structure formed at a distal end.
The linkage rod 44 includes a first, a second, and a third rotating branch parts 441, 442, 443 arranged in sequence, and the first and the third rotating branch parts 441, 443 are respectively located at two ends of the second rotating branch part 442. The first rotating leg 441 is fixed to a first rotating mating portion 425 of the rotating base 41 by a rivet.
The transmission member 47 includes a plate body 471, a fastening hole 472 provided on the plate body 471 and having a first opening 473 at a lateral outer side, a third rotating engagement portion 474 provided on one end of the plate body 471 away from the fastening hole 472 and riveted with the third rotating engagement portion 443 by a rivet, a position avoiding portion 475 provided on one side of the third rotating engagement portion 474, and a mounting cavity 477 provided between the fastening hole 472 and the third rotating engagement portion 474. The mounting cavity 477 is provided with a second opening 476 longitudinally outboard.
The connection seat 43 includes a main body 431, a mating groove 432 extending upward from two longitudinal sides of the main body 431 and then vertically and oppositely bending and extending, a fixing hole 433 extending from the outer longitudinal side of the mating groove 432, a rubber sleeve 434 sleeved in the mating groove 432, a track groove 435 formed in the mating groove 432 by attaching the rubber sleeve 434, a riveting column 436 provided on the inner surface of the main body 431, a second rotating mating portion 438 provided on the rear end of the inner surface of the main body 431, and a flat spring 437 with one end fixed on the riveting column 436. The other end of the flat spring 437 is fixed to the column 427 of the rotary plate 41, and at least one pair of flat springs 437 are provided. The second rotating leg 442 of the linkage rod 44 is limited on the second rotating matching portion 438 of the connecting seat 43 by a rivet, and the first, second and third rotating leg 441, 442, 443 can rotate around the first rotating matching portion 425, the second rotating matching portion 438 and the third rotating matching portion 474, respectively.
The state control member 45 is mounted in the mounting cavity 477 of the transmission member 47, and the state control member 45 includes a base body portion 451 disposed in the mounting cavity 477, a holding end 453 extending from the base body portion 451 out of the second opening 476 of the mounting cavity 477, and an elastic member 452 clamped between one end of the base body portion 451 and the inner wall of the mounting cavity 477. The elastic member 452 is positioned by a positioning post (not shown) disposed on the inner wall of the mounting cavity 477, the elastic member 452 provides an elastic force to the state control member 45, so that the supporting end 453 maintains an outward supporting force, and the supporting end 453 switches between the open state slot 4261 and the closed state slot 4262 of the state control slot 426 of the rotating seat 41 to realize a positioning effect when the open state and the closed state are switched, so as to prevent excessive open or closed operation.
When the distance changing device 40 is assembled, the shaft end 461 of the driving rod 46 is sleeved in the rotating hole 124 outside the resisting part 123; positioning rotating parts 412 at two longitudinal ends of the rotating seat 41 in the gear groove 114, the arc-shaped groove 126 of the notch 125 and the gear groove 114, respectively, inserting the rotating shaft 31 from one end of the notch 125 into the hole structure of the rotating part 412 and the shaft hole 121 of the third partition 119, and extending into the damping groove 115, and sleeving the spring 32 and the first and second damping blocks 33, 34 outside the rotating shaft 31, and abutting the second damping block 34 on the abutting part 123; the rotating shaft 31 is pushed continuously to extend into the gear groove 114 through the shaft hole 121 on the second partition portion 118, and simultaneously, the pair of gears 35 and the rotating portion 412 are sleeved into the rotating shaft 31, and the rotating shaft is pushed continuously to be inserted into the shaft hole 121 on the first partition portion 117.
The rotating plate 13 includes a rotating plate base 131, widened portions 132 extending from both longitudinal sides of the rotating plate base 131 in a transverse direction, longitudinal end portions 133 formed at both longitudinal ends of the rotating plate base 131, and second engaging portions 134 formed on outer sides of the longitudinal end portions 133 and engaged with the first engaging portions 416. When the rotary seat 41 is assembled on the main shaft 11, the first engaging portion 416 and the second engaging portion 134 are engaged with each other and can realize limiting and relative movement when the rotary seat 41 rotates.
Before the rotary base 41 is assembled to the spindle 11, the distance-varying device 40 needs to be assembled, and the distance-varying device is assembled as follows:
The other end of the flat spring 437 fixed to the rivet post 436 of the connection base 43 is fixed to the post 427 on the back surface of the rotation base 41, the second rotation support 442 of the link 44 is rotatably fixed to the second rotation engagement portion 438 of the connection base 43 or the first rotation support 441 is fixed to the first rotation engagement portion 425 of the rotation base 41. The track groove 435 of the connecting seat 43 is sleeved outside the matching flanges 423 on two sides of the matching part of the rotating seat 41, and the track groove 435 is coated with the rubber sleeve 434, so that the two can be matched and slide smoothly, and noise is avoided.
Fixing the state control member 45 in the mounting cavity 477 of the transmission member 47, and then installing the transmission member 47 in the accommodating portion 421 of the rotary seat 41, wherein the limiting portions 422 on both sides of the accommodating portion 421 limit the position of the transmission member 47 in the longitudinal direction, and the abutting end 453 is elastically matched with the state control slot 426; at this time, the third rotating leg 443 of the link lever 44 is rotatably fixed to the third rotating engagement portion 474 of the transmission member 47. The first, second and third rotating leg portions 441, 442, 443 and the first, second and third rotating mating portions 425, 438, 474 may be holes and cylindrical structures, or rivets may be riveted into two hole structures.
The driving end 462 of the driving rod 46 is clamped into the fastening hole 472 of the transmission member 47, and the driving rod 46 extends out along the first opening 473 at one side of the fastening hole 472. The rotating portion 412 of the gear slot 114 extends along the notch 1141 of the gear slot 114.
The distance-varying device 40 further includes a cover 48, and the cover 48 is fixed above the accommodating portion 421 of the rotating base 41 by screws to fix the transmission member 47 on the rotating base 41.
The working principle of the distance-changing device of the present application is as follows, when the connecting seat 43 is driven to rotate by the connected housing (such as a mobile phone housing), the rotating plate 13 drives the hinge 10 to rotate together, the rotating plate 13 and the rotating seat 41 relatively move through the first and second engaging parts 416 and 134, and simultaneously the driving rod 46 rotates along with the rotating plate, the driving end 462 of the driving rod 46 drives the driving member 47 to move in the accommodating part 421 of the rotating seat 41, so that the connecting seat 43 is driven to move by rotating the linkage rod 44 fixed on the driving member 47, and the movement of the connecting seat 43 can enable the housing fixed on the connecting seat 43 to generate a change in length distance, so as to adapt to the change in length of the folding screen caused by bending.
In this process, the flat spring 437 provides the connection and elastic force between the connection base 43 and the rotating base 41. The flat spring 437 can also provide two states, and cooperate with the state control member 45 and the state control slot 426 provided on the rotary base 41 to realize positioning in both the unfolded state and the folded state.
The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and variations of the present application will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the application are to be included in the scope of the claims of the present application.
Claims (13)
1. The utility model provides a displacement device, assembles on folding hinge, its characterized in that, folding hinge include the main shaft and articulate in the horizontal both sides of main shaft just can wind the folding swivel plate of main shaft, displacement device including rotatory be fixed in swivel mount on the main shaft, assemble in swivel mount and can be in the transmission spare that swivel mount lateral direction removed, suit in swivel mount and can follow swivel mount lateral direction removes connecting seat, rotatory cooperation in main shaft and drive actuating lever and the trace of transmission spare, the swivel mount with the swivel plate still be equipped with each other slidable fit's first, second interlock portion, the trace is equipped with in proper order and rotates respectively be fixed in swivel mount, connecting seat and first, second, the third on the transmission spare rotate branch portion, the swivel mount corresponds the trace position department is equipped with the intercommunicating pore, the connecting seat with still be connected with flat spring between the swivel mount, drive during the swivel mount rotation, swivel plate and actuating lever promote together drive actuating lever and actuating lever drive, the first side of swivel mount or pulling along the lateral direction makes the swivel mount is followed the lateral direction changes the connecting seat moves the distance.
2. The pitch device of claim 1, wherein the folding hinge further comprises a plurality of bars disposed between the main shaft and the rotating plate, the bars being hinged to each other and two outermost bars being hinged to the main shaft and the rotating plate, respectively.
3. The pitch device of claim 1, wherein the rotating base comprises a base body, a rotating part formed by extending from the base body and rotationally fixed on the main shaft, and a matching part formed by recessing the base body and extending away from the rotating part; the mating portion includes a portion formed on the base and a portion extending outwardly from a lateral edge of the base.
4. The device according to claim 3, wherein the engaging portion includes a receiving portion formed by recessing for assembling the transmission member, a limiting portion formed by extending upward from both longitudinal sides of the receiving portion and then bending and extending relatively for limiting the transmission member, engaging flanges formed at both longitudinal sides of the receiving portion for engaging with the connecting seat, and a first rotating engaging portion for fixing the first rotating supporting portion.
5. The pitch device of claim 4, wherein the first engaging portion is disposed on the base at a back surface of the accommodating portion, and a column for fixing the flat spring is further disposed on the back surface of the base.
6. The pitch device of claim 4, wherein the transmission member comprises a plate body, a fastening hole provided on the plate body and having a first opening at a lateral outer side, and a third rotating fit portion provided at an end of the plate body away from the fastening hole to rotationally fix the third rotating branch portion; the driving rod comprises a driving end which is rotationally arranged at the upper shaft end of the main shaft and is buckled in a buckling hole of the transmission piece.
7. The device according to claim 6, wherein the connecting base comprises a main body portion and a matching groove which is formed by extending upward from two longitudinal sides of the main body portion and then bending vertically and oppositely, and is matched with the matching flange of the rotating base to slide, and shells are respectively fixed on the connecting bases at two transverse sides of the main shaft, and the shells at two sides of the main shaft rotate through folding operation of a user, so that the connecting base is driven to rotate.
8. The distance-varying device according to claim 7, wherein a rubber sleeve is adhered in the matching groove, a track groove is formed on the rubber sleeve, and the matching flange is inserted in the track groove and can slide.
9. The pitch device of claim 7, wherein the connection base further comprises a rivet post provided on an inner surface of the main body portion for securing the flat spring, and a second rotational engagement portion provided at a rear end of the inner surface of the main body portion for rotationally defining the second rotational leg.
10. The pitch device of claim 6, wherein the transmission member further comprises a mounting cavity formed between the fastening hole and the third rotating fit portion, a second opening is formed in the mounting cavity toward the limiting portion of the rotating seat, a state control member is mounted in the mounting cavity, and a state control groove matched with the state control member is formed in the limiting portion corresponding to the second opening.
11. The pitch device of claim 10, wherein the state control member comprises a base portion disposed within the mounting cavity, a retaining end portion extending from the base portion out of the second opening of the mounting cavity, and an elastic member clamped between one end of the base portion and an inner wall of the mounting cavity, the state control slot comprising an open state slot and a closed state slot, the retaining end portion retaining within the open state slot and the closed state slot in the open and closed states, respectively.
12. The pitch device of claim 6, wherein a gear is disposed at a position of the transmission member corresponding to the second rotating portion of the connecting seat, the link is rotatable in the communication hole, and a width of the communication hole on a side of the third rotating portion of the link is greater than a width of the communication hole on a side of the first rotating portion.
13. A folding display device comprising a distance-varying device according to any one of claims 1-12, the folding display device further comprising a synchronizing mechanism assembled to the folding hinge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910789229.0A CN110594279B (en) | 2019-08-26 | 2019-08-26 | Pitch-changing device and folding display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910789229.0A CN110594279B (en) | 2019-08-26 | 2019-08-26 | Pitch-changing device and folding display device |
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| CN110594279A CN110594279A (en) | 2019-12-20 |
| CN110594279B true CN110594279B (en) | 2024-04-30 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111734731B (en) * | 2019-03-25 | 2021-08-24 | 兆利科技工业股份有限公司 | Rotating shaft module of folding device |
| CN111997991B (en) * | 2020-07-29 | 2022-03-29 | 华为技术有限公司 | Rotating shaft mechanism and electronic equipment |
| CN113497842B (en) * | 2020-04-08 | 2023-10-10 | Oppo广东移动通信有限公司 | Foldable electronic equipment and locking mechanism thereof |
| CN113948000A (en) * | 2020-07-17 | 2022-01-18 | 深圳市柔宇科技股份有限公司 | Folding device and electronic equipment |
| CN216241794U (en) * | 2021-07-05 | 2022-04-08 | 武汉华星光电半导体显示技术有限公司 | Hinge, flexible display panel and electronic device |
| CN115059679A (en) * | 2021-11-05 | 2022-09-16 | 荣耀终端有限公司 | Opening and closing equipment |
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| CN110594279A (en) | 2019-12-20 |
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