CN210865437U - Locking assembly, winding device and flexible winding display device - Google Patents

Abstract

The utility model discloses a locking subassembly, take-up device and flexible winding display device, the locking subassembly includes: the locking device comprises an inner sleeve, an outer sleeve and a locking piece, wherein the inner sleeve is suitable for being sleeved outside a scroll, a through hole is formed in the side wall of the inner sleeve, the outer sleeve is sleeved outside the inner sleeve, the inner wall of the outer sleeve is provided with a limiting inclined plane, the locking piece is arranged in the outer sleeve, and movably penetrates through the through hole along the radial direction of the inner sleeve and synchronously moves along the axial direction relative to the outer sleeve along with the inner sleeve, wherein when the inner sleeve drives the locking piece to move to a locking position along the axial direction, the limiting inclined plane pushes the locking piece to move inwards along the radial direction of; when the inner sleeve drives the locking piece to leave the locking position along the axial direction, the locking piece is not limited by the function of the limiting inclined plane any more so as to release the limitation on the reel. According to the utility model discloses a locking subassembly can restrict the spool effectively and rotate, and locking subassembly's operational reliability is high, easy operation.

Description

Locking assembly, winding device and flexible winding display device

Technical Field

The utility model belongs to the technical field of the display device technique and specifically relates to a locking subassembly, take-up device and flexible winding display device are related to.

Background

Organic Light-Emitting Diodes (OLEDs) use Organic polymeric materials as the semiconductor material in the Light-Emitting diode, which emit Light when a current is passed through the material. The OLED display technology has the self-luminous characteristic, and has the characteristics of wide viewing angle, high contrast, low energy consumption and the like. The OLED is manufactured on the flexible substrate based on the characteristics of the OLED, then the thin film packaging layer is manufactured on the OLED to block water and oxygen, the flexible display panel can be manufactured, the use of backlight is reduced, the thickness of the display panel can be reduced, and the weight of the display device is reduced.

With the increasing market demand of flexible displays, research and development on various display devices in the market are receiving more and more attention, such as a rollable flexible display screen that has been developed for use, an expansion of the flexible display screen is used to increase visibility, and the rollable flexible display screen becomes smaller in volume, easy to store, and increased in portability. However, the flexible display screen in the related art cannot simply and effectively lock the current state of the flexible display screen when being rolled and unfolded, and is inconvenient to use.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a locking subassembly for flexible winding display device, locking subassembly restricts the spool effectively and rotates to the roll exhibition state of locking flexible display screen, and the operational reliability of locking subassembly is high, easy operation.

The utility model discloses still provide a take-up device who has above-mentioned locking Assembly to and have this take-up device's flexible winding display device.

According to the utility model discloses a locking Assembly for flexible winding display device of first aspect embodiment, flexible winding display device includes flexible display screen and convolutes the spool of flexible display screen, the locking Assembly includes: the inner sleeve is suitable for being sleeved outside the reel, and a through hole is formed in the side wall of the inner sleeve; the outer sleeve is sleeved outside the inner sleeve, and the inner wall of the outer sleeve is provided with a limiting inclined plane; the locking piece is arranged in the outer sleeve, movably penetrates through the through hole along the radial direction of the inner sleeve and synchronously moves along the axial direction along with the inner sleeve relative to the outer sleeve; wherein the locking assembly is configured to: when the inner sleeve drives the locking piece to move axially to a locking position, the limiting inclined surface pushes the locking piece to move radially inwards along the inner sleeve to a position pressing the reel so as to limit the reel to rotate; when the inner sleeve drives the locking piece to move axially away from the locking position, the locking piece is not influenced by the limiting inclined surface to release the limitation on the reel.

According to the utility model discloses a locking Assembly for flexible winding display device of first aspect embodiment, locking Assembly restricts the spool effectively and rotates to the roll exhibition state of locking flexible display screen, and the operational reliability of locking Assembly is high, easy operation.

In some embodiments, the locking assembly further comprises: the first elastic piece is arranged between the outer sleeve and the inner sleeve and applies elastic reset force moving towards the locking position to the inner sleeve.

In some embodiments, the outer sleeve has a first shoulder portion extending toward the inner sleeve, the inner sleeve has a second shoulder portion extending toward the outer sleeve, the second shoulder portion is located between the first shoulder portion and the limiting slope, the first elastic member is a cylindrical coil spring, and the first elastic member is sleeved outside the inner sleeve and abuts between the first shoulder portion and the second shoulder portion.

In some embodiments, the inner sleeve includes an outer cylindrical section, and the outer cylindrical section extends out of the outer sleeve in a direction away from the limit slope in the axial direction of the outer sleeve.

In some embodiments, the outer cylindrical section has a third shoulder on its outer circumference, the third shoulder limiting entry of the outer cylindrical section into the outer sleeve.

In some embodiments, the outer sleeve comprises: a first cylindrical portion and a second cylindrical portion that is fitted inside the first cylindrical portion, and the stopper slope is formed on an inner peripheral surface of the second cylindrical portion.

In some embodiments, the second cylindrical portion is an interference fit with the first cylindrical portion.

In some embodiments, the limit inclined surface is a truncated cone side surface.

According to the utility model discloses a take-up device for flexible winding display device of second aspect embodiment, flexible winding display device includes the flexible display screen, take-up device includes: a reel for winding the flexible display screen; the winding drum is covered on the winding shaft, and a drawing opening suitable for the flexible display screen to enter and exit is formed in the side wall of the winding drum; the driving assembly is positioned at one axial end of the reel and is suitable for driving the reel to automatically roll up through elastic restoring force: and a locking assembly located at the other axial end of the reel, the locking assembly being according to the utility model discloses a locking assembly for flexible winding display device of first aspect embodiment, the outer sleeve with the reel cooperation with the reel is followed the circumference of reel is static relatively.

According to the utility model discloses a take-up device for flexible winding display device of second aspect embodiment can restrict the spool through the setting and rotate to the locking subassembly of the roll exhibition state of locking flexible display screen, thereby can improve take-up device's convenience of use.

In some embodiments, the driving assembly includes a second elastic member, the second elastic member is a coil spring or a spiral spring, one end of the second elastic member is connected to the winding drum, and the other end of the second elastic member is connected to the winding drum.

In some embodiments, the end face of the other end of the winding drum in the axial direction is externally provided with a first rotation stopping structure, the outer peripheral wall of the outer sleeve is provided with a second rotation stopping structure, and the second rotation stopping structure is in plug-in fit with the first rotation stopping structure along the axial direction of the winding drum so as to limit the relative rest of the outer sleeve and the winding drum along the circumferential direction of the winding drum.

In some embodiments, the first rotation stopping structure and the second rotation stopping structure are matched in cross-sectional shape, and the first rotation stopping structure is a limiting block with a trapezoidal groove, and the limiting block is arranged offset from the central axis of the winding drum.

According to the utility model discloses flexible winding display device of third aspect embodiment includes: flexible display screen and take-up device, take-up device is according to the utility model discloses a take-up device for flexible winding display device of second aspect embodiment, take-up device is used for the roll-up and expands flexible display screen.

According to the utility model discloses flexible winding display device of third aspect embodiment is through setting up according to the utility model discloses the take-up device for flexible display device of second aspect embodiment to can improve flexible winding device's convenience of use.

In some embodiments, the flexible roll-up display device further comprises: the flexible display screen comprises a first connecting structure and a second connecting structure, wherein the first connecting structure and the second connecting structure are respectively arranged at two ends of the flexible display screen, the first connecting structure is located in the winding drum and connected with the winding shaft, and the second connecting structure is located outside the winding drum.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

Fig. 1 is a perspective view of a flexible roll display device according to an embodiment of the present invention;

fig. 2 is an exploded view of the flexible roll display device shown in fig. 1;

FIG. 3 is a cross-sectional view of the locking assembly shown in FIG. 2;

FIG. 4 is an exploded view of the locking assembly shown in FIG. 3;

FIG. 5 is a cross-sectional view of the locking member of the locking assembly shown in FIG. 3 in a locked position;

FIG. 6 is a cross-sectional view of the locking member of the locking assembly shown in FIG. 5 as it moves out of the locking position;

fig. 7 is a perspective view of the spool shown in fig. 2.

Reference numerals:

flexible roll display device 1000:

a winding device 100; a display screen 200;

a winding drum 1;

a drawing port 11; a first rotation stop structure 12; a trapezoidal groove 121; a stopper 122;

a first barrel 13; a second barrel 14; a cartridge cover 15;

a reel 2;

a drive assembly 3; the second elastic member 31;

a locking assembly 4;

an inner sleeve 41; a through hole 411; a second shoulder 412; an outer cylindrical section 413;

a third shoulder 4131; an outer sleeve 42; a first shoulder 421; a first cylindrical portion 422;

a second rotation stop structure 4221; the second cylindrical portion 423; a limit bevel 4231;

a locking member 43; a first elastic member 44;

a first connecting structure 5;

a second connecting structure 6.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize the applicability of other processes and/or the use of other materials.

Next, referring to the drawings, a lock assembly 4 for a flexible roll display device 1000 according to an embodiment of the first aspect of the present invention is described.

As shown in fig. 1 and 2, the flexible roll display device 1000 may include a flexible display screen 200 and a roll 2 around which the flexible display screen 200 is wound, for example, when the flexible roll display device 1000 is not operated, the flexible display screen 200 may be wound on the roll 2, whereby an occupied space of the flexible roll display device 1000 may be reduced, thereby making the flexible roll display device 1000 convenient to store and carry. When the flexible roll display device 1000 operates, the flexible display screen 200 may be drawn out from the roll 2 to be unwound to implement a display function.

As shown in fig. 3 and 4, the locking assembly 4 for the flexible roll display device 1000 may include: the inner sleeve 41 is suitable for being sleeved outside the reel 2, the side wall of the inner sleeve 41 is provided with a through hole 411, the outer sleeve 42 is sleeved outside the inner sleeve 41, the inner wall of the outer sleeve 42 is provided with a limit inclined surface 4231, the locking piece 43 is arranged in the outer sleeve 42, and the locking piece 43 is movably arranged through the through hole 411 along the radial direction of the inner sleeve 41 and synchronously moves along the axial direction along with the inner sleeve 41 relative to the outer sleeve 42.

It should be noted that the inner sleeve 41 is suitable for being sleeved outside the winding shaft 2, and it should be understood in a broad sense that a part of the winding shaft 2 is sleeved inside by the inner sleeve 41, and meanwhile, the outer sleeve 42 is sleeved outside the inner sleeve 41, and it should be understood in a broad sense that a part of the inner sleeve 41 is sleeved inside by the outer sleeve 42. Furthermore, it should be noted that in the description of the present invention, it is to be understood that the terms "inside", "outside", "left", "right", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

For example, as shown in fig. 5, when the inner sleeve 41 carries the locking member 43 along the axial direction of the outer sleeve 42 (i.e., from F2 to F1 as shown in fig. 5) to the locking position, the limit slope 4231 pushes the locking member 43 to move radially inward along the inner sleeve 41 (i.e., from F4 to F3 as shown in fig. 5) to a position pressing against the reel 2, so as to limit the rotation of the reel 2. More specifically, for example, as shown in fig. 5, the distance between the limit slope 4231 and the reel 2 is gradually decreased from right to left, when the inner sleeve 41 drives the locking member 43 to move from right to left, when the locking member 43 can be pushed by the limit slope 4231 to contact the reel 2 and press the reel 2, so as to lock the reel 2, so that the reel 2 can not rotate around the axis any more, and at this time, the flexible display 200 stays at the current position, for example, when the flexible display 200 is unfolded to the working position, the unfolded state of the flexible display 200 can be locked by the locking member 4.

The specific form of the locking member 43 is not limited, and may be, for example, a steel ball, a quenched steel ball, or the like, so as to improve wear resistance and reduce wear. Further, the number of the locking pieces 43 may be plural (e.g., two, three, four, etc.), and when the locking pieces 43 are plural, the through holes 411 in the inner sleeve 41 are also plural to fit in one-to-one correspondence.

It should be further noted that the unfolding position of the flexible display screen 200 locked by the locking assembly 4 includes, but is not limited to, the position when the flexible display screen 200 is completely unfolded, and for example, the flexible display screen 200 can stay at any position during the unfolding process, so that the flexible display screen 200 can be unfolded to different working areas according to different needs, thereby increasing different use requirements of the flexible display screen 200.

For example, in some embodiments, the locking member 43 may be provided as a plurality of quenching balls (e.g., 3 or 4 quenching balls) which are uniformly spaced apart and pass through the circumferential side wall of the inner sleeve 41, and the inner sleeve 41 is in clearance fit with the reel 2, and the through hole 411 is provided such that, when the quenching balls move radially inward along the inner sleeve 41 to the limit position, the diameter R1 of the smallest common tangent circle that can be reached by the plurality of quenching balls is slightly larger than the smallest diameter D1 of the limit inclined surface 4231, and at the same time, the diameter R2 of the smallest common tangent circle that can be reached by the plurality of quenching balls is slightly smaller than the diameter D2 of the reel 2. Therefore, the plurality of quenching steel balls can simultaneously and respectively press the limiting inclined surfaces 4231 and the reel 2 so as to limit the rotation of the reel 2, and the clearance between the inner sleeve 41 and the reel 2 is small, so that the movement range of the locking piece 43 is small, and the reel 2 can be quickly limited to rotate. It will be appreciated that in actual use, as the locking assembly 4 is assembled with the reel 2, the quenched steel balls cannot move radially inwardly of the inner sleeve 41 to the limit position, and can stop moving further radially inwardly to the position where they are pressed against the reel 2.

Further, it will be appreciated that, when the locking member 43 is in the locking position, since the diameter of the limit slope 4231 is gradually reduced from right to left (from F2 to F1 as viewed in fig. 5), when the user pulls the outer sleeve 42 from left to right (from F1 to F2 as viewed in fig. 5), the locking assembly 4 is not moved, and thus the operational reliability of the locking assembly 4 is high.

Conversely, as shown in fig. 6, when the inner sleeve 41 carries the locking member 43 axially away from the locking position, for example, the user can pull the inner sleeve 41 in the direction from F1 to F2 as shown in fig. 6, the inner sleeve 41 carries the locking member 43 relative to the outer sleeve 42 in the direction from F1 to F2, so that the locking member 43 is no longer acted on by the inclined limit surface 4231, and the reel 2 can be released, and the reel 2 can be rotated, so that the flexible display 200 can be wound and unwound. Therefore, the locking assembly 4 is convenient to unlock and simple to operate.

According to the utility model discloses a locking subassembly 4 for flexible winding display device 1000 of first aspect embodiment, locking subassembly 4 can comparatively effectively and restrict spool 2 fast and rotate, realizes the locking to the current roll-up state of flexible display screen 200, and locking subassembly 4's operational reliability is high, easy operation.

In some embodiments, as shown in fig. 3, the locking assembly 4 may further include a first resilient member 44, the first resilient member 44 being disposed between the outer sleeve 42 and the inner sleeve 41, and applying a resilient return force to the inner sleeve 41 moving toward the locking position. For example, when the locking member 43 is inserted through the through hole 411 of the sidewall of the inner sleeve 41, the inner sleeve 41 can be moved toward the locking position by the elastic restoring force exerted by the first elastic member 44, so that the locking member 43 simply and effectively locks the spool 2, ensuring the reliability of the locking state. Of course, the present invention is not limited to this, and in other embodiments, the user may manually push the inner sleeve 41 to move toward the locking position, and the locking position of the inner sleeve 41 may be locked by another structure such as a buckle.

For example, in some embodiments, as shown in fig. 3, the outer sleeve 42 has a first shoulder 421 extending toward the inner sleeve 41, the inner sleeve 41 has a second shoulder 412 extending toward the outer sleeve 42, and the second shoulder 412 is located between the first shoulder 421 and the limit slant 4231, so that the second shoulder 412 can be limited from moving between the first shoulder 421 and the limit slant 4231, for example, when the first elastic member 44 is a cylindrical coil spring, the first elastic member 44 is sleeved outside the inner sleeve 41 and is abutted between the first shoulder 421 and the second shoulder 412, so that when the first shoulder 421 and the second shoulder 412 are brought close to each other under the action of external force, the first elastic member 44 can accumulate an elastic restoring force for moving the first shoulder 421 and the second shoulder 412 away from each other, so that when the inner sleeve 41 is not subjected to other external force, the first elastic member 44 can push the first shoulder 421 and the second shoulder 412 away from each other by the elastic restoring force, so that locking piece 43 compresses tightly spool 2 through spacing inclined plane 4231 for locking subassembly 4 can lock spool 2 relatively fast and make it no longer rotate, and improves the operational reliability of locking subassembly 4, and the simple structure of locking subassembly 4, convenient processing and assembly.

In some embodiments, as shown in fig. 3, the inner sleeve 41 includes an outer cylindrical section 413 extending out of the outer sleeve 42 in a direction away from the limit slope 4231 in the axial direction of the outer sleeve 42, it can be understood that, since the inner sleeve 41 and the outer sleeve 42 are relatively movable, the length of the outer cylindrical section 413 is not fixed, or the portion of the inner sleeve 41 that can extend out of the outer sleeve 42 is the outer cylindrical section 413, so that a user can easily move the inner sleeve 41 by controlling the outer cylindrical section 413, for example, the locking member 43 can be moved in an unlocking direction by pulling the outer cylindrical section 413 outward, so that the locking member 43 releases the locking of the reel 2, thereby facilitating the user's operation.

In some embodiments, as shown in fig. 3, the outer cylindrical segment 413 may have a third shoulder 4131 on its outer circumferential surface, and the third shoulder 4131 limits the entry of the outer cylindrical segment 413 into the outer sleeve 42, that is, the outer cylindrical segment 413 may not completely enter the outer sleeve 42 under the limiting action of the third shoulder 4131, so that the outer cylindrical segment 413 is prevented from being retracted into the outer sleeve 42 under the action of the first elastic member 44, and the structural reliability of the locking assembly 4 is ensured. It should be noted that the connection form of the third shoulder 4131 and the outer cylinder segment 413 is not limited, and may be, for example, interference fit connection, threaded connection, connection by a threaded connection, adhesion, welding, and the like, and may be specifically selected according to the material and the structure of the third shoulder 4131 and the outer cylinder segment, and details thereof are not described herein.

In addition, when the user pulls the outer barrel section 413 outwards to move the locking piece 43 in the unlocking direction, the user can also pull the third shoulder 4131 to drive the inner barrel 41 to move the locking piece 43 in the unlocking direction, for example, when the user operates, the index finger and the thumb are used to hold the outer barrel 42, and the middle finger can hook out the third shoulder 4131 outwards, so that the purpose of unlocking can be achieved, thereby facilitating the operation of the user and improving the use convenience of the locking assembly 4.

In some embodiments, as shown in fig. 3 and 4, the outer sleeve 42 may include: the first cylindrical portion 422 and the second cylindrical portion 423 are provided, the second cylindrical portion 423 is fitted into the first cylindrical portion 422, and the limit inclined surface 4231 is formed on the inner circumferential surface of the second cylindrical portion 423, whereby the first cylindrical portion 422 and the second cylindrical portion 423 can be separately processed, and when the lock assembly 4 is assembled, the first elastic member 44 and the lock member 43 can be assembled to the inner sleeve 41 first, the inner sleeve 41 and the first cylindrical portion 422 can be assembled, and then the second cylindrical portion 423 can be assembled into the first cylindrical portion 422, so that the difficulty in assembling the lock assembly 4 can be reduced, and the assembled lock assembly 4 has high structural stability.

It should be noted that the manner of assembling and connecting the first cylindrical portion 422 and the second cylindrical portion 423 is not limited, for example, interference fit connection, threaded connection, bonding, welding, etc. may be adopted, and specific selection may be made according to the material and structure of the two portions, which is not described herein again. For example, in some embodiments, as shown in fig. 3, the second cylindrical portion 423 is interference-fitted with the first cylindrical portion 422, so that the structural strength of the second cylindrical portion 423 and the first cylindrical portion 422 is high, thereby improving the operational reliability of the locking assembly 4.

In some embodiments, as shown in fig. 3, the position-limiting slant 4231 may be a side surface of a circular truncated cone, that is, a side surface of a circular truncated cone structure, and it is understood that the circular truncated cone includes an upper bottom surface and a lower bottom surface which are arranged in parallel, and a side surface which is connected between the upper bottom surface and the lower bottom surface and surrounds the entire circumference. Therefore, the limit inclined plane 4231 is convenient to process, in addition, when the inner sleeve 41 and the outer sleeve 42 are assembled, whether the limit inclined plane 4231 needs to be locally opposite to the locking piece 43 or not does not need to be considered, the installation at any angle is only needed, the assembly difficulty is reduced, and when the inner sleeve 41 rotates relative to the outer sleeve 42 in the circumferential direction, the locking piece 43 can be always matched with the limit inclined plane 4231, and the working reliability of the locking assembly 4 is guaranteed.

Next, a winding device 100 for a flexible winding display apparatus 1000 according to an embodiment of the second aspect of the present invention is described with reference to the drawings.

As shown in fig. 1, the flexible roll display device 1000 may include a roll device 100 and a flexible display screen 200, and in conjunction with fig. 2, the roll device 100 for the flexible roll display device 1000 may include: the display device comprises a winding drum 1, a winding shaft 2, a driving assembly 3 and a locking assembly 4, wherein a drawing opening 11 suitable for the flexible display screen 200 to enter and exit is formed in a side wall of the winding drum 1, the winding drum 1 is covered on the winding shaft 2, namely, a part of the winding shaft 2 is arranged in the winding drum 1, the winding shaft 2 is suitable for winding the flexible display screen 200, the driving assembly 3 is positioned at one axial end (the upper end shown in fig. 2) of the winding shaft 2 and is suitable for driving the winding shaft 2 to automatically wind (opposite to the unfolding action) through elastic resetting force, the locking assembly 4 is positioned at the other axial end (the lower end shown in fig. 2) of the winding shaft 2, an outer sleeve 42 is arranged on the winding drum 1 and is relatively static with the winding drum 1 along the circumferential direction of the winding shaft 2, and the locking assembly 4 is used.

For example, in the example shown in fig. 2, the flexible display screen 200 in the flexible roll display device 1000 is rolled up on a roll shaft 2, a roll 1 is fitted over the roll shaft 2 and has a drawing port 11 formed on a side wall thereof for drawing in and out the flexible display screen 200, during the process of the flexible display 200 from the retracted position to the extended position, the driving assembly 3 provided at the upper end of the winding shaft 2 gradually accumulates the elastic restoring force, after the flexible display 200 reaches the deployed position, the reel 2 is locked by the locking assembly 4 provided at the lower end of the reel 2, since the outer sleeve 42 of the locking assembly 4 is circumferentially relatively stationary with respect to the spool 1, when the locking assembly 4 is in the locking position, the spool 2 is also relatively stationary with respect to the spool 1, therefore, the flexible display screen 200 stays at the working position, and after the locking assembly 4 is unlocked, the flexible display screen 200 is automatically wound on the reel 2 under the action of the driving assembly 3.

According to the utility model discloses a take-up device 100 for flexible winding display device 1000 of second aspect embodiment through setting up drive assembly 3 and locking Assembly 4 respectively in the axial both sides of spool 2, can simplify the structure effectively, reduces the assembly degree of difficulty, and can avoid drive assembly 3 and locking Assembly 4's assembly and work to influence each other and interfere, improves take-up device 100's operational reliability.

In some embodiments, as shown in fig. 2, the driving assembly 3 may include a second elastic member 31, the second elastic member 31 is a coil spring or a spiral spring, one end of the second elastic member 31 is connected to the winding drum 1, and the other end of the second elastic member 31 is connected to the winding drum 2. For example, in the process that the flexible display screen 200 reaches the extended position from the retracted position, one end of the second elastic member 31 connected to the winding drum 1 is fixed, and the other end of the second elastic member rotates along with the winding drum 2, so that the second elastic member 31 gradually accumulates the elastic restoring force, and the flexible display screen 200 can be automatically retracted under the elastic restoring force, and the second elastic member 31 has a simple structure and is low in processing cost.

For example, in some embodiments, as shown in fig. 2, the winding drum 1 may include a first drum 13, a second drum 14 and a cover 15, and in conjunction with fig. 7, the first drum 13 and the second drum 14 are assembled and connected to each other and define a receiving cavity for receiving at least a portion of the winding shaft 2 and at least a portion of the flexible display 200, so that the winding shaft 2 and the flexible display 200 wound on the winding shaft 2 can be protected in the receiving cavity, and in addition, the cover 15 is sleeved on the outer side of the second elastic member 31 and fixedly connected with respect to the first drum 13 and the second drum 14, so that one end of the second elastic member 31 can be fixed on the cover 15, and the cover 15 can protect both the second elastic member 31 and define the working space of the second elastic member 31, thereby improving the working stability and the safety of the driving assembly 3. Moreover, providing the spool 1 in this configuration also facilitates assembly of the various components.

In some embodiments, as shown in fig. 2, the end face of the other axial end of the winding drum 1 is externally provided with a first rotation stopping structure 12, the outer peripheral wall of the outer sleeve 42 is provided with a second rotation stopping structure 4221, and the second rotation stopping structure 4221 is in plug fit with the first rotation stopping structure 12 along the axial direction of the winding drum 2 so as to limit the relative rest of the outer sleeve 42 and the winding drum 1 along the circumferential direction of the winding drum 2. That is, when the first rotation preventing structure 12 and the second rotation preventing structure 4221 are in insertion fit along the axial direction of the winding shaft 2, the outer sleeve 42 and the winding drum 1 can be fixed in the circumferential direction of the winding shaft 2, for example, when the flexible display screen 200 is unwound or wound, the outer sleeve 42 does not rotate along with the winding shaft 2 along the circumferential direction of the winding shaft 2, and furthermore, when the locking assembly 4 locks the winding shaft 2, the flexible display screen 200 can stay at the current position.

The specific form of the first rotation stop structure 12 and the second rotation stop structure 4221 is not limited as long as the outer sleeve 42 and the winding drum 1 can be relatively stationary in the circumferential direction of the winding drum 2. For example, in some embodiments, as shown in fig. 2, the first rotation stop structure 12 and the second rotation stop structure 4221 have a cross-sectional shape matching, in combination with fig. 7, the first rotation stop structure 12 is a stopper 122 having a trapezoidal groove 121, and the stopper 122 is disposed offset from the central axis of the spool 1. Thus, since the outer sleeve 42 of the locking assembly 4 is engaged with the offset stopper 122 of the reel 1, the inner sleeve 41 of the locking assembly 4 is engaged with the reel 2 in the reel 1, so that the outer sleeve 42 and the reel 1 can be effectively restricted from relatively stationary in the circumferential direction of the reel 2.

In addition, the second rotation stopping structure 4221 is equivalent to a trapezoidal guide rail, when the trapezoidal guide rail is inserted into the trapezoidal groove 121, the trapezoidal groove 121 can play a role in supporting and guiding, and when the reel 2 is in a locked state, the structural stability of the trapezoidal groove 121 and the trapezoidal guide rail in the inserting and matching process is high, so that the shearing force along the circumferential direction of the outer sleeve 42 can be effectively reduced, and the service life and the limiting reliability of the first rotation stopping structure 12 and the second rotation stopping structure 4221 are further increased.

It should be noted that the cross-sectional shapes of the first rotation preventing structure 12 and the second rotation preventing structure 4221 may also be other than the trapezoidal groove 121, for example, a rectangular groove, a semicircular groove, and the like, which are not limited herein, and in addition, specific fixing forms of the first rotation preventing structure 12 and the second rotation preventing structure 4221 include but are not limited to the above-mentioned insertion fit, for example, the first rotation preventing structure 12 and the second rotation preventing structure 4221 may also be connected by using a threaded connection, a pin connection, and the like, which are not described herein again. In addition, the first rotation stopping structure 12 and the second rotation stopping structure 4221 may be in interference fit to prevent the locking assembly 4 from falling off from the winding drum 1, or may also adopt other manners to perform relative axial limiting on the locking assembly 4 and the winding drum 1.

Next, a flexible roll display apparatus 1000 according to an embodiment of a third aspect of the present invention is described with reference to the drawings.

As shown in fig. 1 and 2, the flexible roll display device 1000 may include: flexible display screen 200 and take-up device 100, take-up device 100 is according to the utility model discloses a take-up device 100 for flexible winding display device 1000 of second aspect embodiment, take-up device 100 is used for the roll-up and expand flexible display screen 200, thereby can utilize take-up device 100 to restrict the spool 2 fast and rotate, make flexible display screen 200 stop at operating position, can retrieve flexible display screen 200 in reel 1 through drive assembly 3, therefore, can reduce flexible winding display device 1000's occupation space, thereby make flexible winding display device 1000 be convenient for accomodate and conveniently carry.

According to the utility model discloses flexible winding display device 1000 of third aspect embodiment is through setting up according to the utility model discloses a take-up device 100 for flexible display device of second aspect embodiment to can restrict spool 2 through locking Assembly 4 fast and rotate, make flexible display screen 200 stop at the present position, can be with flexible display screen 200 automatic roll-up reel 1 in through drive assembly 3, from this, can reduce flexible winding display device 1000's occupation space, thereby make flexible winding display device 1000 be convenient for accomodate and conveniently carry.

In some embodiments, as shown in fig. 2, the flexible roll-up display device 1000 may further include: the first connecting structure 5 and the second connecting structure 6, the first connecting structure 5 and the second connecting structure 6 are respectively disposed at two ends of the flexible display screen 200, the first connecting structure 5 is located in the winding drum 1 and connected with the winding drum 2, and the second connecting structure 6 is located outside the winding drum 1. For example, one end of the flexible display 200 may be fixed on the winding shaft 2 by the first connection structure 5, the flexible display 200 may be wound on the winding shaft 2 when the winding shaft 2 rotates, when the flexible display 200 needs to be unwound, the user may unwind the flexible display 200 by pulling the second connection structure 6 connected to the other end of the flexible display 200, and in addition, when the flexible display 200 is automatically wound and retracted, the second connection structure 6 may prevent the flexible display 200 from being entirely inserted into the winding drum 1.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (14)

1. A locking assembly for a flexible roll-up display device, the flexible roll-up display device comprising a flexible display screen and a spool around which the flexible display screen is rolled, the locking assembly comprising:

the inner sleeve is suitable for being sleeved outside the reel, and a through hole is formed in the side wall of the inner sleeve;

the outer sleeve is sleeved outside the inner sleeve, and the inner wall of the outer sleeve is provided with a limiting inclined plane;

the locking piece is arranged in the outer sleeve, movably penetrates through the through hole along the radial direction of the inner sleeve and synchronously moves along the axial direction along with the inner sleeve relative to the outer sleeve;

wherein the locking assembly is configured to: when the inner sleeve drives the locking piece to move axially to a locking position, the limiting inclined surface pushes the locking piece to move radially inwards along the inner sleeve to a position pressing the reel so as to limit the reel to rotate; when the inner sleeve drives the locking piece to move axially away from the locking position, the locking piece is not influenced by the limiting inclined surface to release the limitation on the reel.

2. The locking assembly for a flexible wrap display device of claim 1, further comprising:

the first elastic piece is arranged between the outer sleeve and the inner sleeve and applies elastic reset force moving towards the locking position to the inner sleeve.

3. The locking assembly for a flexible wrap display device of claim 2, wherein the outer sleeve has a first shoulder extending toward the inner sleeve, the inner sleeve has a second shoulder extending toward the outer sleeve, the second shoulder is located between the first shoulder and the stop ramp, the first resilient member is a cylindrical coil spring, the first resilient member is sleeved outside the inner sleeve and stops between the first shoulder and the second shoulder.

4. The locking assembly for a flexible roll display device according to claim 1, wherein the inner sleeve includes an outer cylindrical section, and the outer cylindrical section protrudes out of the outer sleeve in a direction away from the stopper slope in an axial direction of the outer sleeve.

5. The locking assembly for a flexible wrap display device of claim 4, wherein said outer cylindrical section has a third shoulder on an outer peripheral surface thereof, said third shoulder limiting entry of said outer cylindrical section into said outer sleeve.

6. The locking assembly for a flexible wrap display device of claim 1, wherein the outer sleeve comprises: a first cylindrical portion and a second cylindrical portion that is fitted inside the first cylindrical portion, and the stopper slope is formed on an inner peripheral surface of the second cylindrical portion.

7. The locking assembly for a flexible wrap display device of claim 6, wherein the second cylindrical portion is an interference fit with the first cylindrical portion.

8. A lock assembly for a flexible wrap display device according to any of claims 1 to 7, wherein the stop ramp is a rounded truncated cone side.

9. A winding arrangement for a flexible winding display device, the flexible winding display device comprising a flexible display screen, the winding arrangement comprising:

a reel for winding the flexible display screen;

the winding drum is covered on the winding shaft, and a drawing opening suitable for the flexible display screen to enter and exit is formed in the side wall of the winding drum;

the driving assembly is positioned at one axial end of the reel and is suitable for driving the reel to automatically roll up through elastic restoring force: and

a locking assembly at an axially other end of the reel, the locking assembly being a locking assembly for a flexible roll-up display device according to any one of claims 1 to 8, the outer sleeve cooperating with the reel to be relatively stationary with the reel in a circumferential direction of the reel.

10. The scrolling device for a flexible scrolling display device according to claim 9, wherein the driving assembly comprises a second elastic member, the second elastic member being a coil spring or a spiral spring, one end of the second elastic member being connected to the scroll, and the other end of the second elastic member being connected to the scroll.

11. The winding device for a flexible winding display device according to claim 9 or 10, wherein a first rotation stopping structure is provided outside an end face of the other axial end of the winding drum, and a second rotation stopping structure is provided on an outer peripheral wall of the outer sleeve, and the second rotation stopping structure is in plug-fit engagement with the first rotation stopping structure in an axial direction of the winding drum to restrict relative rest of the outer sleeve and the winding drum in a circumferential direction of the winding drum.

12. The winding device for a flexible winding display device according to claim 11, wherein the first rotation stop structure is matched with the second rotation stop structure in cross-sectional shape, and the first rotation stop structure is a stopper having a trapezoidal groove, and the stopper is disposed offset from the central axis of the winding drum.

13. A flexible roll display device, comprising:

a flexible display screen;

a winding device for a flexible roll display device according to any one of claims 9 to 12, for winding and unwinding the flexible display screen.

14. The flexible roll display device of claim 13, further comprising: the flexible display screen comprises a first connecting structure and a second connecting structure, wherein the first connecting structure and the second connecting structure are respectively arranged at two ends of the flexible display screen, the first connecting structure is located in the winding drum and connected with the winding shaft, and the second connecting structure is located outside the winding drum.

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