Summary of the invention
In view of this, the present invention proposes a kind of for protecting the chain assembly and flexible display device of flexible screen, can make soft
Property display equipment keep a kind of stable state, and prevent flexible display device because exceed bent range due to damage.
The technical solution provided by the present invention is: it is a kind of for protecting the chain assembly of flexible screen, including by multiple chain links
Chain structure made of tandem array;
The chain link is the symmetrical structure that Y type is presented, and is the stem of the chain link, the other end along one end of symmetrical axis direction
For the tail portion of the chain link;
The stem of the chain link includes a pair of of trunnion, and the trunnion is parallel with the plane of symmetry of the excessively described symmetry axis and distinguishes position
An axis cylindrical pin shaft vertical with the symmetry axis is clamped in the two sides of the plane of symmetry, between trunnion;
The tail portion of the chain link include a protruding portion, the protruding portion be equipped with a cylindrical pin hole, pin hole axis with
The pin shaft axis is parallel;
It is equipped with a protrusion on the inside of the pin hole, the groove with the male cooperation is equipped on the outside of the pin shaft, it is described recessed
Slot includes the first groove and the second groove;
First groove be and the matched groove of the convex shape;
Second groove is the strip groove around the pin shaft;
The chain structure includes the chain link of multiple tandem arrays each other, the pin shaft of the previous chain link pass through with
The pin hole of chain link described in the latter;
The chain structure includes first state and the second state;
The first state includes that the protrusion is embedded in first groove, and the pin hole is fixed to one another with the pin shaft;
Second state includes that the protrusion is embedded in second groove, and the protrusion is in second groove
With the contactless sliding of the pin shaft, the pin hole is around the pin shaft flexible rotating.
The advantages of the present patent application, is: having stationary state when can both flexible display screen be made to organize work, will not produce
Life collapses or twisted phenomena, it can also be ensured that flexible display device will not make roll angle beyond Flexible Displays when crimping bending
Shield bent range, flexible display device is avoided to damage because pullling or squeezing.
Specific embodiment
To make the above purposes, features and advantages of the invention more obvious and understandable, below in conjunction with attached drawing and implementation
The present invention will be further described for example.
It should be noted that elaborating detail in the following description to fully understand the present invention.But this hair
Bright to be different from other way described herein with a variety of and be implemented, those skilled in the art can be without prejudice in the present invention
Similar popularization is done in the case where culvert.Therefore the present invention is not limited by following public specific embodiment.
Present invention firstly provides a kind of for protecting the chain assembly of flexible screen, as shown in Figure 1, mentioning for the embodiment of the present invention
A kind of partial schematic diagram of the chain assembly in bending state supplied, chain assembly include as made of the linking of multiple chain links 20
Chain structure 10.
As shown in Fig. 2, for the concrete structure schematic diagram of chain link 20 single in Fig. 1, each chain link 20 has the sight that Y type is presented
Face is examined, this specification is referred to as vertical view face, as shown in figure 3, overlooking face schematic diagram for single chain link, chain link 20 is left and right in the face
Symmetrical structure, one end along 30 direction of symmetry axis are the stem 21 of chain link, and the other end is the tail portion 22 of chain link.
The stem 21 of chain link 20 includes a pair of of trunnion 211, and trunnion 211 is parallel with the plane of symmetry of symmetry axis 30 excessively and distinguishes position
A cylindrical pin shaft 212, pin shaft axis 31 and symmetry axis are clamped between the two sides of the plane of symmetry, a pair of trunnion 211
30 is vertical.
The tail portion 22 of chain link 20 includes a protruding portion 221, and protruding portion 221 is equipped with a cylindrical pin hole 222, pin bore axis
Line 32 is parallel with pin shaft axis 31.
As shown in figure 4, being a kind of two chain links of the chain assembly for protecting flexible screen provided in an embodiment of the present invention
Connection schematic diagram, the pin shaft 212 of the latter chain link 201 passes through the pin hole 222 of previous chain link 202.
As shown in figure 5, for a kind of the single of the chain assembly for protecting flexible screen provided in an embodiment of the present invention in Fig. 3
The face the A-A cross-sectional view of chain link, in order to make flexible display device keep a kind of stable state, and prevents flexible display device
It is damaged because exceeding bent range, a protrusion 223 is equipped on the inside of pin hole 222, protrusion 223 is hemispherical;On pin shaft 212
Equipped with the groove with 223 cooperation of protrusion, the groove includes the first groove 213 and the second groove 214;First groove 213 with it is convex
It is identical to play 223 shapes, protrusion 223 can be made to be embedded in, and play the role of fixed lobe 223;Second groove 214 is around pin shaft
212 strip groove, inner wall radian is identical as raised 223 shapes, and protrusion 223 can be made to be completely embedded into, and allows protrusion 223
It is slided in the second groove 214.
As shown in fig. 6, for two of a kind of chain assembly for protecting flexible screen provided in an embodiment of the present invention in Fig. 4
The junction face the B-B cross-sectional view of chain link, pin shaft 212 pass through pin hole 222, and pin shaft 212 is equipped with first recessed with 223 cooperation of protrusion
Second groove 214 of slot 213 and the strip around pin shaft 212;Second groove 214 of strip includes both ends, respectively first end
215 and second end 216, first end 215 is close to one end of the first groove 213, and second end 216 is far from the first groove 213
One end.Protrusion 223 moves to the center of circle corresponding to the circular motion that second end 216 is done through first end 215 from the first groove 213
Angle is 90 degree.Therefore, the maximum magnitude for the circular motion that protrusion 223 is done around pin shaft axis is 90 degree.
As shown in figure 8, being a kind of single chain link of the chain assembly for protecting flexible screen provided in an embodiment of the present invention
C direction schematic diagram, pin shaft 212 is clamped between a pair of of trunnion 211, the first of pin shaft the first groove 213 and the second groove 214
Un-grooved part between end 215 is the first part 217 of pin shaft 212, other un-grooved parts of pin shaft 212 are second part
218。
As shown in fig. 7, being the junction partial enlarged view of two chain links shown in fig. 6, the first part 217 of pin shaft 212
Radius be the first radius R1, the radius of the second part 218 of pin shaft 212 is the second radius R2, and the first radius R1 is less than
The second radius R2 not only can be convenient protrusion 223 in this way and convert position between described two grooves, but also can prevent protrusion
223 are detached from the range for allowing it to slide, i.e., the described protrusion is limited at the first groove 213, the second groove 214 and pin shaft 212
On 217 region of first part in slide and the second part 218 on pin shaft 212 cannot be slided into.
As shown in fig. 6, there is pin hole 222 third radius R3, the first radius R1 of pin shaft 212 to be greater than groove to pin shaft axis
Minimum range, the third radius R3 of pin hole 222 is greater than the second radius R2 of pin shaft 212, and protrusion 223 arrives the minimum of pin hole axis
Distance is less than the first radius R1 of pin shaft 212, and the first radius R1 and protrusion 223 of pin shaft 212 arrive the minimum range of pin hole axis
Difference be greater than pin hole 222 third radius R3 and 212 second radius R2 of pin shaft difference, protrusion 223 arrive pin hole axis most
Small distance is greater than groove to the minimum range of pin shaft axis.
Chain link described in the present embodiment is integrally formed, and has both facilitated production and processing in this way, can also prevent chain link from loosening deformation
Or fall apart, to keep chain assembly stronger.
Further, the present invention provides a kind of flexible display device, protects including being used for described in flexible display screen and two
The chain assembly of flexible screen.The back side of the flexible display screen is arranged in the chain assembly, and needs along flexible display screen
The marginal portion of bending is arranged.
When flexible display screen is straightened in user, protrusion the first groove of insertion, pin hole is fixed to one another with pin shaft, as shown in figure 9,
For the partial schematic diagram for being in linear state according to a kind of chain assembly provided in an embodiment of the present invention, chain structure 10 keeps straight
Linear state.Screen edge fixation is in line when flexible display screen can be made to organize work in this way, makes flexible display screen surfacing,
Twisted phenomena will not be generated, middle section will not generate and collapse.
When user wants to roll flexible display screen, protrusion is set to leave the first groove by external force, it is raised from second
The first end of groove enters the second groove.Protrusion can be freely around pin slide in the second groove, the pin of previous chain link at this time
Hole can realize the bending of chain structure around the pin shaft flexible rotating of the latter chain link.But the second groove allows protrusion sliding around pin shaft
Range is moved less than 90 degree, therefore, the bending degree of the chain structure is in controllable range.In this way, user is easily will be flexible
Display screen will not make roll angle beyond flexible display screen bent range while rolling, avoid flexible display device because drawing
It pulls or squeezes and damage.
In the above-described embodiments, flexible display device can bending fold certainly can be according to tool between scheduled 90 degree
Body needs to change the length of second groove, to change the flexible range of flexible display device.
In the above-described embodiments, although the protrusion is parallel to institute for the centre of sphere of hemispherical and the protrusion and pin shaft line
The symmetry axis of chain link is stated, but unlike this, the shape of the protrusion may be configured as other shapes for facilitating sliding, and described convex
Act other positions that may be provided at pin hole inner wall;The shape of the groove and position also change with the protrusion is corresponding, and setting exists
The corresponding site of the pin shaft.
In the above-described embodiments, the flexible display device includes two chain assemblies, but unlike this, described
Flexible display device may include at least one of the present invention for protecting the chain assembly of flexible screen.Can by adhesion or
Chain assembly is attached to the back side of the flexible display screen or is trapped among on the outside of screen edge by the mode being mechanically fixed.In addition, institute
It states chain assembly and along the flexible display screen needs the marginal portion bent setting or along being parallel to the flexible display screen
The marginal portion setting for needing to bend.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to of the invention
Protection scope.