Rolling type display device

Abstract

The utility model provides a furling type display device. The furling type display device comprises a shaft shell part; the plate shell piece is assembled on the shaft shell piece; the core shaft module is arranged in the shaft shell piece; the flexible roller shutter is wound on the core shaft module; the plurality of main supporting rods are arranged in the plate shell piece; the plurality of left connecting rod groups are respectively arranged between any two main supporting rods; the flexible screen is wound on the core shaft module; the first constant torsion spring constantly provides first elastic force and is arranged on the mandrel module; and the second constant torsion spring constantly provides a second elastic force and is arranged on the mandrel module.

Description

Technical Field

[0001] The present application provides a display device, and more particularly, a rollable display device capable of expanding a display area according to demand. Background Art

[0002] The roll-up display device can be extended and retracted to provide users with more flexibility. However, such a roll-up display device may cause friction loss between the display device and the supporting plate structure due to continuous and repeated bending, which may reduce the supporting force of the supporting plate structure or cause deformation of the display device, and ultimately fail to be effectively extended and retracted. Utility Model Content

[0003] The present application provides a roll-up display device, comprising: an axle housing extending along a first axis and comprising a first accommodation space and an elongated opening communicating with the first accommodation space; a plate housing assembled with the axle housing, capable of extending and retracting inward and outward along a second axis substantially perpendicular to the first axis, and capable of switching between a retracted state and an extended state, and comprising a head plate, a tail plate and a semi-open second accommodation space; a spindle module disposed in the first accommodation space and comprising a first shaft rod and a second shaft rod extending along the first axis and spaced apart from each other; a flexible roll-up device; a plurality of roll-up devices ... The invention relates to a curtain, which can be stretched and recovered and rolled up on the first shaft rod; a plurality of main support rods, which are arranged in the second accommodating space at intervals, and each of the main support rods substantially extends parallel to the first axis; a plurality of left connecting rod groups, which are respectively arranged between any two of the main support rods, and respectively include a first left rod and a second left rod, each of the first left rods and each of the second left rods are respectively correspondingly pivoted on the main support rods, and any two adjacent first left rods and second left rods are meshed with each other; a flexible screen, which can be stretched and recovered and rolled up on the second shaft rod, and includes a plurality of left connecting rod groups connected in sequence. a main display area, a retracted display area and a connection area, the main display area is fixedly connected to the tail plate, and the connection area is fixedly connected to the second shaft; a first fixed torsion spring, which constantly provides a first elastic force, and includes a first output wheel and a first storage wheel, the first output wheel is arranged on the first shaft, and the first storage wheel is arranged on the second shaft, and the first elastic force tends to keep the plate shell in the retracted state through the flexible screen; and a second fixed torsion spring, which constantly provides a second elastic force, and includes a second output wheel and a second storage wheel, the second output wheel is arranged on the A second shaft rod, the second storage wheel is arranged on the first shaft rod, and the second elastic force tends to maintain the plate shell component in the retracted state through the flexible roller blind; wherein, when in the retracted state, each of the first left rods and each of the second left rods are adjacent to each other and substantially parallel to each of the main support rods, the tail plate is located in the head plate, and the retracted display area is retracted into the first accommodating space through the spindle module, and when in the extended state, each of the first left rods and each of the second left rods are respectively obliquely intersected with each of the main support rods, the tail plate extends from the head plate, and the retracted display area is exposed on the shaft shell component.

[0004] As in the aforementioned roll-up display device, the first storage wheel is fixedly connected to one end of the second shaft and moves together with the second shaft, and the second storage wheel is fixedly connected to one end of the first shaft and moves together with the first shaft.

[0005] As in the aforementioned retractable display device, the first output wheel has a first wheel body and a first bearing, the second output wheel has a second wheel body and a second bearing, the first wheel body is sleeved outside the first bearing, and the first shaft rod is inserted into the first bearing, whereby the first wheel body can rotate idly relative to the first shaft rod, the second wheel body is sleeved outside the second bearing, and the second shaft rod is inserted into the second bearing, whereby the second wheel body can rotate idly relative to the second shaft rod.

[0006] As in the aforementioned retractable display device, the left connecting rod group further includes a third left rod and a fourth left rod, each of which is pivotally mounted on the main support rod, and any two adjacent third left rods and fourth left rods are engaged with each other. When in the retracted state, each third left rod and each fourth left rod are adjacent to each other and parallel to each main support rod. When in the extended state, each third left rod and each fourth left rod are obliquely intersected with each main support rod, each third left rod is parallel to each first left rod, and each fourth left rod is parallel to each second left rod.

[0007] As in the aforementioned retractable display device, the left connecting rod group further includes a fifth left rod, any two adjacent first left rods and the second left rods are respectively pivoted at one end corresponding to the fifth left rod, and any two adjacent third left rods and the fourth left rods are respectively pivoted at the other end corresponding to the fifth left rod, whereby each of the fifth left rods is substantially parallel to each of the main support rods, and the main support rods, the first left rod, the second left rod, the third left rod, the fourth left rod and the fifth left rod together constitute a plurality of parallelograms connected to each other.

[0008] The aforementioned roll-up display device further comprises a switch module, which is disposed on the shaft housing and can permanently limit the plate housing to the extended state.

[0009] As in the aforementioned retractable display device, the switch module includes a main block, at least one groove, at least one stopper and at least one first elastic member, wherein the groove is defined by the main block, the stopper is disposed in the groove and can move relative to the main block along the first axis, and the first elastic member is accommodated in the groove and abuts against the main block and the stopper.

[0010] As in the aforementioned retractable display device, the block has an adjacent first surface and a second surface, and the first left rod closest to the spindle module has a lever portion, which is pivotally connected to the main support rod adjacent to the spindle module. When the plate shell member changes from the retracted state to the extended state, the lever portion abuts against the first surface and pushes the block along the first axis and compresses the first elastic member. When the lever portion disengages from the first surface, the first elastic member rebounds to reset the block, thereby causing the lever portion to abut against the second surface and be limited thereby.

[0011] As in the aforementioned retractable display device, the switch module further includes at least one second elastic member disposed between the main block and the shaft housing member. When the plate housing member changes from the extended state to the retracted state, the lever portion pushes the main block along the second axis via the second surface and compresses the second elastic member. When the lever portion is separated from the second surface, the second elastic member rebounds to reset the main block.

[0012] As in the aforementioned retractable display device, the switch module also includes a slider and a third elastic member, the slider having two convex portions, the third elastic member being arranged between the slider and the shaft housing member, the main block having two protrusions, when the convex portions abut against the protrusions, the main block cannot move along the second axis, when the slider moves along the first axis and compresses the third elastic member, so that the convex portion and the protrusions are misaligned with each other, the main block can move along the second axis, and when the main block is reset via the second elastic member, the third elastic member rebounds to cause the convex portion to abut against the protrusions.

[0013] As in the aforementioned retractable display device, the plate shell also includes at least one middle plate, which is arranged between the head plate and the tail plate. When in the retracted state, the middle plate is located in the head plate, and the tail plate is located in the middle plate. At this time, the second accommodating space is surrounded and defined by the tail plate. When in the extended state, the middle plate extends from the head plate, and the tail plate extends from the middle plate. At this time, the second accommodating space is surrounded and defined by the head plate, the middle plate and the tail plate together.

[0014] As described above, the retractable display device also includes a plurality of right connecting rod groups, which are respectively arranged between any two of the main support rods and spaced apart from the left connecting rod group, wherein the right connecting rod groups respectively include a first right rod and a second right rod, each of the first right rod and each of the second right rods are respectively pivotally arranged on the main support rod, and any two adjacent first right rods and second right rods are meshed with each other, in the retracted state, each of the first right rods and each of the second right rods are adjacent to each other and parallel to each of the main support rods, and in the extended state, each of the first right rods and each of the second right rods are respectively oblique to each of the main support rods.

[0015] As in the aforementioned retractable display device, the right connecting rod group further includes a third right rod and a fourth right rod, each of which is pivotally arranged on the main support rod, and any two adjacent third right rods and fourth right rods are engaged with each other. When in the retracted state, each third right rod and each fourth right rod are adjacent to each other and parallel to each main support rod. When in the extended state, each third right rod and each fourth right rod are obliquely intersected with each main support rod, each third right rod is parallel to each first right rod, and each fourth right rod is parallel to each second right rod.

[0016] As in the aforementioned retractable display device, the right connecting rod group further includes a fifth right rod, any two adjacent first right rods and the second right rods are respectively pivoted at one end corresponding to the fifth right rod, and any two adjacent third right rods and the fourth right rods are respectively pivoted at the other end corresponding to the fifth right rod, whereby each of the fifth right rods is substantially parallel to each of the main support rods, and the main support rods, the first right rod, the second right rod, the third right rod, the fourth right rod and the fifth right rod together constitute a plurality of parallelograms connected to each other.

[0017] As in the aforementioned retractable display device, the first fixed torsion spring further includes a first connecting portion, and the second fixed torsion spring further includes a second connecting portion, the first connecting portion is connected to the same side or different sides of the first output wheel and the first storage wheel, and the second connecting portion is connected to the same side or different sides of the second output wheel and the second storage wheel.

[0018] As in the aforementioned retractable display device, the opposite ends of any two adjacent first left rods and the second left rods, the opposite ends of any two adjacent third left rods and the fourth left rods, the opposite ends of any two adjacent first right rods and the second right rods, and the opposite ends of any two adjacent third right rods and the fourth right rods are each provided with a tooth portion, whereby the first left rod and the second left rod, the third left rod and the fourth left rod, the first right rod and the second right rod, and the third right rod and the fourth right rod can engage with each other via the corresponding tooth portions, and can be synchronously reversed when switching between the retracted state and the extended state.

[0019] As described above, the retractable display device further includes at least one telescopic track unit, which is provided on the plate shell and corresponds to one side of the flexible screen. When in the extended state, the telescopic track unit is unfolded and jointly supports the flexible roller blind and the flexible screen with the main support rod, the left connecting rod group and the right connecting rod group.

[0020] The aforementioned roll-up display device further includes a plurality of magnetic members disposed on the telescopic track unit and the main support rod for magnetically adsorbing the flexible screen or the flexible rolling curtain.

[0021] In summary, the roll-up display device of the present application can achieve the function of winding the first fixed torsion spring and the second fixed torsion spring at one end of the first shaft and the second shaft respectively when the first shaft and the second shaft rotate forward / reverse, and releasing the first fixed torsion spring and the second fixed torsion spring at the other end, so as to effectively provide a constant torque. In addition, the main support rod, the left connecting rod group and the right connecting rod group can be opened and closed synchronously, so that the opening and closing angles are consistent and can be stretched evenly and stably, effectively supporting the flexible screen, and having the advantages of small storage space and large unfolding support surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is an overall schematic diagram of the roll-up display device of the present application in an extended state.

[0023] Figure 2 It is an exploded schematic diagram of the roll-up display device of the present application in an extended state.

[0024] Figure 3 It is a schematic diagram of the exploded view of some components of the roll-up display device of the present application.

[0025] Figure 4 and Figure 5 Schematic diagram of the exploded view of the spindle module, the first fixed torsion spring and the second fixed torsion spring of the roll-up display device of the present application from different viewing angles.

[0026] Figure 6 This is a top view of the main support rod, left connecting rod assembly and right connecting rod assembly of the retractable display device of the present application in the extended state.

[0027] Figure 7 This is an overall schematic diagram of the main support rod of the roll-up display device of the present application.

[0028] Figure 8 This is an overall schematic diagram of the left connecting rod group of the retractable display device of the present application.

[0029] Fig. 9 This is an overall schematic diagram of the right connecting rod group of the retractable display device of the present application.

[0030] Fig.10 and Fig.11 Schematic diagram of different embodiments of some components of the first fixed torsion spring / second fixed torsion spring in the roll-up display device of the present application.

[0031] Fig.12 It is an overall schematic diagram of the switch module in the roll-up display device of the present application.

[0032] Fig.13 It is a schematic diagram of the roll-up display device of the present application in a retracted state.

[0033] Figures 14 to 17 This is a schematic diagram of the operation of the switch module in the roll-up display device of the present application.

[0034] Main component symbols

[0035] 1000: Roll-up display device 712: First bearing

[0036] 1: shaft housing 713: first winding body

[0037] 11: Upper cover 72: First storage wheel

[0038] 12: Lower cover 721: First wheel

[0039] 13: First accommodating space 722: First winding member

[0040] 14: Long opening 723: First clamping fixture

[0041] 15: Extension plate 724: First bearing

[0042] 2: Plate shell 73: first connection part

[0043] 21: Head plate 74: First fixing member

[0044] 22: Middle plate 8: Second fixed torsion spring

[0045] 23: tail plate 81: second output wheel

[0046] 24: Second accommodating space 811: Second wheel body

[0047] 3: spindle module 812: second bearing

[0048] 31: first shaft 813: second winding body

[0049] 32: Second shaft 82: Second storage wheel

[0050] 4: Main support rod 821: Second wheel

[0051] 41: rod body 822: second winding member

[0052] 42: pivoting portion 823: second clamping fixture

[0053] 43: Accommodation section 824: Second bearing

[0054] 44, 45: fixed part 83: second connecting part

[0055] 5: Left connecting rod group 84: Second fixing member

[0056] 51: First left lever 9: Switch module

[0057] 511: tooth part 91: main block

[0058] 512: lever part 911: bump

[0059] 52: second left rod 92: groove

[0060] 521: tooth 93: stopper

[0061] 53: Third left pole 931: First side

[0062] 531: tooth part 932: second surface

[0063] 54: fourth left rod 94: first elastic member

[0064] 541: tooth portion 95: second elastic member

[0065] 55: Fifth left rod 96: Slider

[0066] 6: Right connecting rod group 961: convex part

[0067] 61: first right rod 97: third elastic member

[0068] 611: Tooth A: Telescopic track unit

[0069] 612: lever part B: magnetic part

[0070] 62: Second right rod C: Flexible roller blind

[0071] 621: Gear D: Flexible screen

[0072] 63: Third right lever D1: Main display area

[0073] 631: Tooth D2: Rewinding display area

[0074] 64: Fourth right pole D3: connection area

[0075] 641: Tooth F: External force

[0076] 65: Fifth right lever R1: First rotation direction

[0077] 7: First fixed torsion spring R2: Second rotation direction

[0078] 71: first output wheel X1: first axis

[0079] 711: first wheel body X2: second axis. DETAILED DESCRIPTION

[0080] See also Figure 1 , Figure 2 and Figure 3 The retractable display device 1000 of the present application includes an axle housing 1, a plate housing 2, a core shaft module 3, five main support rods 4, four left connecting rod groups 5, four right connecting rod groups 6, a first fixed torsion spring 7, a second fixed torsion spring 8, a switch module 9, two telescopic track units A, and a plurality of magnetic members B ( Figure 7 and Fig.13), a flexible roller blind C and a flexible screen D, the shaft shell 1 and the plate shell 2 are assembled with each other, the core shaft module 3 is arranged in the shaft shell 1, the main support rod 4 is arranged in the plate shell 2, the left connecting rod group 5 is respectively arranged between any two of the main support rods 4 and is located on one side of the main support rod 4, the right connecting rod group 6 is respectively arranged between any two of the main support rods 4 and is located on the other side of the main support rod 4, the first fixed torsion spring 7 and the second fixed torsion spring 8 are arranged on the core shaft module 3, the switch module 9 is arranged on the shaft shell 1, the telescopic track unit A is arranged on the plate shell 2, the magnetic component B is arranged on the telescopic track unit A and the main support rod 4, the flexible roller blind C is wound on the core shaft module 3, and the flexible screen D is wound on the core shaft module 3, wherein a partial diagram shows a first axis X1 and a second axis X2, and the first axis X1 is substantially perpendicular to the second axis X2.

[0081] The axle housing 1 includes an upper cover 11, a lower cover 12, a first accommodating space 13, an elongated opening 14 and an extension plate 15. The upper cover 11 and the lower cover 12 both extend along the first axis X1 and can be assembled with each other to surround and define the first accommodating space 13. The elongated opening 14 is provided on one side of the upper cover 11 and communicates with the first accommodating space 13. The extension plate 15 extends outward from one side of the lower cover 12 along the second axis X2 and is adjacent to the elongated opening 14.

[0082] The plate shell 2 includes a head plate 21, a middle plate 22, a tail plate 23 and a second accommodating space 24. The head plate 21, the middle plate 22 and the tail plate 23 are all roughly rectangular and have a U-shaped cross-section. The head plate 21 is fixed to the lower cover 12 and is adjacent to the long opening 14. The middle plate 22 is slightly smaller than the head plate 21 and is slidably assembled to the head plate 21 along the second axis X2. The tail plate 23 is also slightly smaller than the middle plate 22 and is slidably assembled to the middle plate 22 along the second axis X2. That is, the middle plate 22 can be extended and retracted inward and outward along the second axis X2 relative to the head plate 21, and the tail plate 23 can be extended and retracted inward and outward along the second axis X2 relative to the middle plate 22. The plate shell 2 can be switched between a retracted state and an extended state. The retracted state means that the middle plate 22 is located inside the head plate 21 and the tail plate 23 is located inside the middle plate 22, while the extended state means that the middle plate 22 extends outward from the head plate 21 and the tail plate 23 extends outward from the middle plate 22. The second accommodating space 24 is semi-open, with the smallest volume in the retracted state (roughly surrounded by the tail plate 23) and the largest volume in the extended state (roughly surrounded by the head plate 21, the middle plate 22 and the tail plate 23).

[0083] Please also see Figure 4 and Figure 5The spindle module 3 is disposed in the first accommodating space 13 and includes a first shaft 31 and a second shaft 32. The first shaft 31 extends along the first axis X1 and is adjacent to the elongated opening 14, and the second shaft 32 extends along the first axis X1 and is spaced apart from the first shaft 31 but away from the elongated opening 14.

[0084] Please also see Figure 6 and Figure 7 , the main support rods 4 are arranged in the second accommodating space 24 at intervals from each other, and each of the main support rods 4 has a rod body 41, four pivoting parts 42 and a accommodating part 43, and the rod body 41 is substantially extended parallel to the first axis X1. The pivoting parts 42 are arranged on the rod body 41 at intervals from each other. The accommodating part 43 is arranged at the center of the rod body 41 and extends outwardly parallel to the second axis X2. The main support rod 4 closest to the spindle module 3 also has four fixed parts 44 that are spaced apart from each other and fixed to the extension plate 15, and the main support rod 4 farthest from the spindle module 3 also has four fixed parts 45 that are spaced apart from each other and fixed to the tail plate 23, whereby when the plate shell 2 changes between the retracted state and the extended state, the main support rods 4 can also be close to each other (retracted state) or away from each other (extended state).

[0085] Please also see Figure 8Each of the left connecting rods 5 comprises a first left rod 51, a second left rod 52, a third left rod 53, a fourth left rod 54 and a fifth left rod 55. The first left rod 51 closest to the spindle module 3 has a toothed portion 511 (half gear) and a lever portion 512 at opposite ends, and the other first left rods 51 have a toothed portion 511 at opposite ends. One end of the first left rod 51 is pivotally connected to the pivotal portion 42 of the main support rod 4 (the lever portion 512 is pivotally connected to the pivotal portion 42 of the main support rod 4 closest to the spindle module 3), and the other end of the first left rod 51 is pivotally connected to one end of the fifth left rod 55. The second left rod 52 has a toothed portion 521 at opposite ends. One end of the second left rod 52 is pivoted to the pivotal portion 42 of the main support rod 4, and the other end of the second left rod 52 is pivoted to the end of the fifth left rod 55, whereby the tooth portion 511 and the tooth portion 521 are meshed with each other. That is, any two adjacent first left rods 51 and second left rods 52 are meshed with each other in an alternating manner at the pivotal portion 42 and the fifth left rod 55, respectively, whereby the first left rod 51 and the second left rod 52 can move together and rotate synchronously in opposite directions. The opposite ends of the third left rod 53 have a tooth portion 531, respectively. One end of the third left rod 53 is pivoted to the pivotal portion 42 of the main support rod 4, and the other end of the third left rod 53 is pivoted to the other end of the fifth left rod 55. The opposite ends of the fourth left rod 54 have a tooth portion 541, respectively. One end of the fourth left rod 54 is pivoted to the pivoting portion 42 of the main support rod 4, and the other end of the fourth left rod 54 is pivoted to the other end of the fifth left rod 55, whereby the tooth portion 531 is meshed with the tooth portion 541. That is, any two adjacent third left rods 53 and fourth left rods 54 are alternately meshed with the pivoting portion 42 and the fifth left rod 55, respectively, whereby the third left rod 53 and the fourth left rod 54 can move together and rotate in opposite directions synchronously. The fifth left rod 55 is substantially parallel to the main support rod 4, and its length is approximately equal to the distance between the pivoting portions 42 on which the first left rod 51 and the third left rod 53 are respectively pivoted, or equal to the distance between the pivoting portions 42 on which the second left rod 52 and the fourth left rod 54 are respectively pivoted, whereby the main support rod 4, the first left rod 51, the second left rod 52, the third left rod 53, the fourth left rod 54 and the fifth left rod 55 together constitute a plurality of parallelograms connected to each other (except in the retracted state).

[0086] Please also see Fig. 9Each of the right connecting rod groups 6 is spaced apart from each of the left connecting rod groups 5, and includes a first right rod 61, a second right rod 62, a third right rod 63, a fourth right rod 64, and a fifth right rod 65. The first right rod 61 closest to the spindle module 3 has a toothed portion 611 and a lever portion 612 at opposite ends, and the other first right rods 61 have a toothed portion 611 at opposite ends. Since the right connecting rod group 6 and the left connecting rod group 5 are symmetrically arranged, their connection relationship and actuation mode are similar and will not be described in detail.

[0087] Please also see Figure 4 , Figure 5 and Fig.10 The first fixed torsion spring 7 constantly provides a first elastic force and includes a first output wheel 71, a first storage wheel 72, a first connecting portion 73 and two first fixing members 74 ( Fig.13 ). The first output wheel 71 has a first wheel body 711, two first bearings 712 and a first winding body 713. The first wheel body 711 is roughly an H-shaped cylinder, which is sleeved outside the first bearing 712. One of the first bearings 712 is inserted into one end of the first shaft 31, and the other first bearing 712 is fixedly connected to one of the first fixing members 74, so that the first wheel body 711 can rotate idly relative to the first shaft 31. The first winding body 713 is wound around the outside of the first wheel body 711. The first storage wheel 72 has a first wheel member 721, a first winding member 722, a first clamping member 723 and a first bearing 724. The first wheel member 721 is roughly an H-shaped cylinder, which is sleeved outside the first bearing 724. The first winding member 722 is wound around the outside of the first wheel member 721. The first clamping member 723 is formed to extend outward from the first wheel member 721 and is fixed to one end of the second shaft 32, so that the first storage wheel 72 can move with the second shaft 32. The first bearing 724 is fixed to another first fixing member 74. The first connecting portion 73 is connected to the same side of the first winding body 713 and the first winding member 722. In other embodiments, such as Fig.11 As shown, the first connecting portion 73 may also be connected to different sides of the first winding body 713 and the first winding member 722. The first fixing member 74 is fixedly disposed between one end of the upper cover 11 and one end of the lower cover 12.

[0088] The second fixed torsion spring 8 is similar to the first fixed torsion spring 7, constantly provides a second elastic force, and includes a second output wheel 81, a second storage wheel 82, a second connecting portion 83 and two second fixing members 84 ( Fig.13). The second output wheel 81 has a second wheel body 811, two second bearings 812 and a second winding body 813. The second wheel body 811 is roughly an H-shaped cylinder, which is sleeved outside the second bearing 812. One of the second bearings 812 is inserted into the other end of the second shaft rod 32, and the other second bearing 812 is fixed to one of the second fixing members 84, so that the second wheel body 811 can rotate idly relative to the second shaft rod 32. The second winding body 813 is wound around the outside of the second wheel body 811. The second storage wheel 82 has a second wheel member 821, a second winding member 822, a second clamping member 823 and a second bearing 824. The second wheel member 821 is roughly an H-shaped cylinder, which is sleeved outside the second bearing 824. The second winding member 822 is wound around the outside of the second wheel member 821. The second clamping member 823 is formed to extend outward from the second wheel member 821 and is fixed to the other end of the first shaft 31, so that the second storage wheel 82 can move together with the first shaft 31. The second bearing 824 is fixed to another second fixing member 84.

[0089] Please also see Fig.12 and Fig.14 The switch module 9 is arranged on the extension plate 15 of the shaft housing 1, and includes a main block 91, two grooves 92, two stops 93, two first elastic members 94, two second elastic members 95, a slider 96 and a third elastic member 97. The main block 91 is roughly an elongated body, extending along the first axis X1, and has two protrusions 911 extending outward along the second axis X2. The groove 92 is surrounded and defined by the main block 91 and spaced from each other. The stops 93 are respectively arranged in the grooves 92 and can move relative to the main block 91 along the first axis X1, and have adjacent first faces 931 and second faces 932. The first elastic member 94 is a compression spring, which is respectively accommodated in the groove 92 along the first axis X1, and its two ends are respectively against the main block 91 and the stop 93. The second elastic member 95 is a compression spring, which is respectively arranged between the main block 91 and the extension plate 15 along the second axis X2. The slider 96 is a roughly elongated body, disposed on the extension plate 15 and movable relative to the extension plate 15 along the first axis X1, and has two protrusions 961 extending outward along the second axis X2. The third elastic member 97 is a compression spring, disposed between the slider 96 and the extension plate 15 along the first axis X1.

[0090] Please also see Figure 2 and Fig.13The telescopic track unit A is located at opposite sides of the plate shell member 2 along the first axis X1, and its two ends are fixed to the lower cover 12 and the tail plate 23, respectively, and can be expanded when the middle plate 22 extends out of the head plate 21 and the tail plate 23 extends out of the middle plate 22, and can be retracted when the middle plate 22 retracts into the head plate 21 and the tail plate 23 retracts into the middle plate 22. In this embodiment, the telescopic track unit A is a multi-section slide rail, and each section of the slide rail can slide with each other in the form of a T-shaped protrusion and a guide rail matching the T-shaped protrusion, but it is not limited to this. The magnetic member B is respectively arranged on the upper surface of the telescopic track unit A and in the receiving portion 43 of the main support rod 4.

[0091] The flexible rolling curtain C is arranged on the main support rod 4, the left connecting rod group 5, the right connecting rod group 6 and the telescopic track unit A, one end of which can be stretched and recovered and wound around the first shaft rod 31, and the other end is fixed to the tail plate 23. In this embodiment, the material of the flexible rolling curtain C is stainless steel and can be adsorbed on the magnetic member B. The flexible screen D is arranged on the flexible rolling curtain C and includes a main display area D1, a retracted display area D2 and a connecting area D3 connected in sequence. The main display area D1 is fixed to the tail plate 23, and the connecting area D3 is fixed to the second shaft rod 32. It should be added that the flexible roller blind C is an additional element to fully support the flexible screen D. However, if the flexible roller blind C and the flexible screen D are rolled up together on, for example, the first shaft rod 31, problems may easily arise when they are rolled up together due to the cumulative thickness of the two, and the winding diameter in the retracted state is too large, and the shaft housing 1 may become an abrupt cylinder that cannot be flattened.

[0092] The following describes the roll-up display device 1000 of the present application in the retracted state ( Fig.13 ) and extended state ( Figure 2 ). In the retracted state, the first elastic force of the first fixed torsion spring 7 and the second elastic force of the second fixed torsion spring 8 can be used to make the tail plate 23 located in the middle plate 22 and the middle plate 22 located in the head plate 21 respectively through the flexible screen D and the flexible rolling curtain C. At this time, the retracted display area D2 is retracted into the first accommodating space 13 through the second shaft 32, and a part of the flexible rolling curtain C is also retracted into the first accommodating space 13 through the first shaft 31. Each of the first left rods 51 and the second left rods 52, each of the third left rods 53 and each of the fourth left rods 54 are adjacent to each other and substantially parallel to each of the main support rods 4 and each of the fifth left rods 55. Each of the first right rods 61 and the second right rods 62, each of the third right rods 63 and each of the fourth right rods 64 are adjacent to each other and substantially parallel to each of the main support rods 4 and each of the fifth right rods 65. At this time, the lever parts 512 and 612 are respectively away from the stopper 93.

[0093] When external force is applied to move the tail plate 23 outward along the first axis X1, the tail plate 23 extends from the middle plate 22, and the middle plate 22 extends from the head plate 21. When changing from the retracted state to the extended state, the retracted display area D2 is gradually exposed from the shaft housing 1, and the flexible roller blind C retracted on the first shaft rod 31 is also gradually exposed from the shaft housing 1. The telescopic track unit A unfolds and supports the flexible roller blind C and the flexible screen D together with the main support rod 4, the left connecting rod group 5 and the right connecting rod group 6. At this time, one end of the first shaft rod 31 idles relative to the first output wheel 71 due to the first bearing 712, but the other end of the first shaft rod 31 moves the second storage wheel 82 at the same time, thereby winding the second winding member 822, and the second winding body 813 is gradually released. Similarly, one end of the second shaft 32 idles relative to the second output wheel 81 due to the second bearing 812 , but the other end of the second shaft 32 simultaneously moves the first storage wheel 72 to wind up the first winding body 713 , and the first winding member 722 is gradually released.

[0094] like Figure 6 As shown, each of the first left rods 51 and each of the second left rods 52 are synchronously reversed, and each of the third left rods 53 and each of the fourth left rods 54 are synchronously reversed, so that each of the first left rods 51 and each of the second left rods 52, each of the third left rods 53 and each of the fourth left rods 54 are obliquely intersected with each of the main support rods 4 and each of the fifth left rods 55, each of the third left rods 53 and each of the first left rods 51 are parallel to each other, and each of the fourth left rods 54 and each of the second left rods 52 are parallel to each other. Similarly, each of the first right rods 61 and each of the second right rods 62 are synchronously reversed, and each of the third right rods 63 and each of the fourth right rods 64 are synchronously reversed, so that each of the first right rods 61 and each of the second right rods 62, each of the third right rods 63 and each of the fourth right rods 64 are obliquely intersected with each of the main support rods 4 and each of the fifth right rods 65, each of the third right rods 63 and each of the first right rods 61 are parallel to each other, and each of the fourth right rods 64 and each of the second right rods 62 are parallel to each other.

[0095] like Fig.14 As shown (for the sake of convenience, only part of the first left rod 51 is shown, and the operating principle of the first right rod 61 is the same as that of the first left rod 51 and will not be repeated), the first left rod 51 closest to the spindle module 3 rotates along the first rotation direction R1 (the first right rod 61 rotates in a direction opposite to the first rotation direction R1, not shown), so that the lever portion 512 abuts against the first surface 931 of the stopper 93 and pushes the stopper 93 along the first axis X1 to compress the first elastic member 94 until the lever portion 512 is separated from the first surface 931. Fig.15As shown, when the lever portion 512 is separated from the first surface 931, the first elastic member 94 rebounds to reset the stopper 93, thereby causing the lever portion 512 to abut against the second surface 932 and be limited by the stopper 93. At this time, the plate shell member 2 is always in an extended state, and the protrusion 911 abuts against the protrusion 961.

[0096] If the plate shell member 2 is to be changed from the extended state to the retracted state, Fig.16 As shown, an external force F is first applied to move the slider 96 along the first axis X1 and compress the third elastic member 97, so that the protrusion 961 and the protrusion 911 are offset from each other, and the main block 91 can move along the second axis X2. Then, the tail plate 23 is pushed to retract to the middle plate 22, and the middle plate 22 is retracted to the head plate 21. At this time, the first elastic force and the second elastic force respectively drive the first storage wheel 72 and the second storage wheel 82, so that the first winding body 713 is released and the first winding member 722 is wound, and the second winding member 822 is released and the second winding body 813 is wound, thereby the retracted display area D2 is gradually retracted into the first accommodating space 13 via the second shaft 32, and a part of the flexible roller blind C is also gradually retracted into the first accommodating space 13 via the first shaft 31, and the telescopic track unit A is retracted. Each of the first left rods 51 and each of the second left rods 52 reverse synchronously, and each of the third left rods 53 and each of the fourth left rods 54 reverse synchronously, until they are adjacent to each other and substantially parallel to each of the main support rods 4 and each of the fifth left rods 55. Similarly, each of the first right rods 61 and each of the second right rods 62 reverse synchronously, and each of the third right rods 63 and each of the fourth right rods 64 reverse synchronously, until they are adjacent to each other and substantially parallel to each of the main support rods 4 and each of the fifth right rods 65. At this time, the first left rod 51 closest to the spindle module 3 rotates along the second rotation direction R2, so that the lever portion 512 abuts against the second surface 932 and pushes the main block body 91 to move along the second axis X2 via the stopper 93, and compresses the second elastic member 95. Fig.17 As shown, when the main block body 91 moves to the position where the main block body 91 and the protrusion 961 match and snap into place, the lever portion 512 disengages from the second surface 932 of the stop block 93, and the second elastic member 95 rebounds to restore the main block body 91. At this time, the external force F is removed, the third elastic member 97 rebounds to restore the slider 96, and the protrusion 961 abuts against the protrusion 911.

[0097] The above embodiment takes four left connecting rod groups 5 and four right connecting rod groups 6 as an example, but the present application is not limited thereto. The number of left connecting rod groups 5 and right connecting rod groups 6 can be increased or decreased according to design requirements. In addition, the left connecting rod group 5 can be omitted according to design requirements, and only the right connecting rod group 6 can be retained (and vice versa). Similarly, the number of telescopic track units A and the magnetic components B can also be increased or decreased according to design requirements, as long as at least one telescopic track unit A is set on one side of the flexible screen D, and the magnetic component B is sufficient to adsorb the flexible roller blind C or the flexible screen D.

[0098] In other embodiments, the switch module 9 may omit the slider 96 and the third elastic member 97, and only rely on the second elastic member 95 to control the movement and reset of the main block 91 along the second axis X2. That is to say, the user directly pulls outward or presses inward the tail plate 23 to switch between the extended state and the retracted state. There is no need to move the slider 96, and the plate shell 2 and the flexible screen D can be directly retracted or unfolded.

[0099] In summary, the roll-up display device of the present application can achieve the function of winding the first fixed torsion spring and the second fixed torsion spring at one end of the first shaft and the second shaft respectively when the first shaft and the second shaft rotate forward / reverse, and releasing the first fixed torsion spring and the second fixed torsion spring at the other end, so as to effectively provide a constant torque. In addition, the main support rod, the left connecting rod group and the right connecting rod group can be opened and closed synchronously, so that the opening and closing angles are consistent and can be stretched evenly and stably, effectively supporting the flexible screen, and having the advantages of small storage space and large unfolding support surface.

Claims

1. A roll-up display device, characterized in that: The roll-up display device comprises: An axle housing extends along a first axis and includes a first accommodating space and an elongated opening communicating with the first accommodating space; A plate housing member, assembled with the shaft housing member, can be extended and retracted inward and outward along a second axis substantially perpendicular to the first axis, and can be switched between a retracted state and an extended state, and includes a head plate, a tail plate and a semi-open second accommodation space; A spindle module is disposed in the first accommodating space and includes a first shaft and a second shaft extending along the first axis and spaced apart from each other; A flexible roller blind, which can be stretched and recovered and rolled up on the first shaft; A plurality of main support rods are disposed in the second accommodating space at intervals from each other, and each of the main support rods extends substantially parallel to the first axis; A plurality of left connecting rod groups, each correspondingly disposed between any two of the main supporting rods, and each comprising a first left rod and a second left rod, each of the first left rods and each of the second left rods are respectively pivotally disposed on the main supporting rod, and any two adjacent first left rods and second left rods are meshed with each other; A flexible screen, which can be stretched and recovered and rolled up on the second shaft, and comprises a main display area, a retractable display area and a connecting area connected in sequence, the main display area is fixedly connected to the tail plate, and the connecting area is fixedly connected to the second shaft; a first fixed torsion spring, which constantly provides a first elastic force and includes a first output wheel and a first storage wheel, wherein the first output wheel is disposed on the first shaft, and the first storage wheel is disposed on the second shaft, wherein the first elastic force tends to maintain the plate shell in the retracted state via the flexible screen; and a second fixed torsion spring, which constantly provides a second elastic force and comprises a second output wheel and a second storage wheel, wherein the second output wheel is arranged on the second shaft rod, and the second storage wheel is arranged on the first shaft rod, and the second elastic force tends to keep the plate shell member in the retracted state through the flexible rolling curtain; Among them, when in the retracted state, each of the first left rods and each of the second left rods are adjacent to each other and substantially parallel to each of the main support rods, the tail plate is located inside the head plate, and the retracted display area is retracted into the first accommodating space via the spindle module; when in the extended state, each of the first left rods and each of the second left rods are respectively obliquely intersected with each of the main support rods, the tail plate extends from the head plate, and the retracted display area is exposed on the shaft shell.

2. The roll-up display device according to claim 1, characterized in that: The first storage wheel is fixedly connected to one end of the second shaft and moves with the second shaft, and the second storage wheel is fixedly connected to one end of the first shaft and moves with the first shaft.

3. The roll-up display device according to claim 2, characterized in that: The first output wheel has a first wheel body and a first bearing, and the second output wheel has a second wheel body and a second bearing. The first wheel body is sleeved outside the first bearing, and the first shaft rod is inserted into the first bearing, whereby the first wheel body can rotate idly relative to the first shaft rod, and the second wheel body is sleeved outside the second bearing, and the second shaft rod is inserted into the second bearing, whereby the second wheel body can rotate idly relative to the second shaft rod.

4. The roll-up display device according to claim 3, characterized in that: The left connecting rod group further includes a third left rod and a fourth left rod, each of the third left rods and each of the fourth left rods are respectively pivotally arranged on the main support rod, and any two adjacent third left rods and the fourth left rods are meshed with each other. When in the retracted state, each of the third left rods and each of the fourth left rods are adjacent to each other and parallel to each of the main support rods. When in the extended state, each of the third left rods and each of the fourth left rods are obliquely intersected with each of the main support rods, each of the third left rods is parallel to each of the first left rods, and each of the fourth left rods is parallel to each of the first left rods. The rod is parallel to each of the second left rods, and the left connecting rod groups further include a fifth left rod. Any two adjacent first left rods and the second left rods are respectively pivoted at one end corresponding to the fifth left rod, and any two adjacent third left rods and the fourth left rods are respectively pivoted at the other end corresponding to the fifth left rod, whereby each of the fifth left rods is substantially parallel to each of the main support rods, and the main support rods, the first left rod, the second left rod, the third left rod, the fourth left rod and the fifth left rod together constitute a plurality of parallelograms connected to each other.

5. The roll-up display device according to claim 4, characterized in that: The retractable display device further comprises a switch module, which is arranged on the shaft housing and can constantly limit the plate housing to the extended state.

6. The roll-up display device according to claim 5, characterized in that: The switch module includes a main block, at least one groove, at least one stop block and at least one first elastic member, wherein the groove is defined by the main block, the stop block is arranged in the groove and can move along the first axis relative to the main block, the first elastic member is accommodated in the groove and abuts the main block and the stop block, the stop block has an adjacent first surface and a second surface, and the first left rod closest to the spindle module has a lever portion, which is pivotally connected to the main support rod adjacent to the spindle module. When the plate shell member changes from the retracted state to the extended state, the lever portion abuts the first surface and pushes the stop block along the first axis and compresses the first elastic member, and when the lever portion disengages from the first surface, the first elastic member rebounds to reset the stop block, thereby making the lever portion abut against the second surface and be limited by it.

7. The roll-up display device according to claim 6, wherein: The switch module further includes at least one second elastic member, which is arranged between the main block and the shaft housing. When the plate housing changes from the extended state to the retracted state, the lever portion pushes the main block along the second axis via the second surface and compresses the second elastic member. When the lever portion is separated from the second surface, the second elastic member rebounds to reset the main block. The switch module also includes a slider and a third elastic member, which has two convex portions. The third elastic member is arranged between the slider and the shaft housing. The main block has two protrusions. When the protrusions abut against the protrusions, the main block cannot move along the second axis. When the slider moves along the first axis, the main block cannot move. When the third elastic member is moved and compressed so that the protrusion and the block are misaligned with each other, the main block can move along the second axis, and when the main block is reset via the second elastic member, the third elastic member rebounds to make the protrusion abut against the block. The plate shell also includes at least one intermediate plate, which is arranged between the head plate and the tail plate. When in the retracted state, the intermediate plate is located in the head plate, and the tail plate is located in the intermediate plate. At this time, the second accommodating space is defined by the tail plate. When in the extended state, the intermediate plate extends from the head plate, and the tail plate extends from the intermediate plate. At this time, the second accommodating space is defined by the head plate, the intermediate plate and the tail plate together.

8. The roll-up display device according to any one of claims 4 to 7, characterized in that: The retractable display device also includes a plurality of right connecting rod groups, which are respectively arranged between any two of the main support rods and spaced apart from the left connecting rod group, wherein the right connecting rod groups respectively include a first right rod and a second right rod, each of the first right rods and each of the second right rods are respectively pivotally arranged on the main support rods, and any two adjacent first right rods and second right rods are meshed with each other, when in the retracted state, each of the first right rods and each of the second right rods are adjacent to each other and parallel to each of the main support rods, and when in the extended state, each of the first right rods and each of the second right rods are respectively oblique to each of the main support rods.

9. The roll-up display device according to claim 8, characterized in that: The right connecting rod group further includes a third right rod and a fourth right rod, each of the third right rod and each of the fourth right rods are respectively pivoted on the main support rod, and any two adjacent third right rods and the fourth right rods are meshed with each other. When in the retracted state, each third right rod and each fourth right rod are adjacent to each other and parallel to each main support rod. When in the extended state, each third right rod and each fourth right rod are respectively obliquely intersected with each main support rod, each third right rod is parallel to each first right rod, and each fourth right rod is parallel to each second right rod. The right connecting rod group further includes a fifth right rod, and any two adjacent first right rods and the second right rods They are respectively pivoted at one end corresponding to the fifth right rod, and any two adjacent third right rods and the fourth right rods are respectively pivoted at the other end corresponding to the fifth right rod, whereby each of the fifth right rods is substantially parallel to each of the main support rods, and the main support rods, the first right rod, the second right rod, the third right rod, the fourth right rod and the fifth right rod together constitute a plurality of parallelograms connected to each other, the first fixed torsion spring also includes a first connecting portion, the second fixed torsion spring also includes a second connecting portion, the first connecting portion is connected to the same side or different sides of the first output wheel and the first storage wheel, and the second connecting portion is connected to the same side or different sides of the second output wheel and the second storage wheel.

10. The roll-up display device according to claim 9, characterized in that: The opposite ends of any two adjacent first left rods and the second left rods, the opposite ends of any two adjacent third left rods and the fourth left rods, the opposite ends of any two adjacent first right rods and the second right rods, and the opposite ends of any two adjacent third right rods and the fourth right rods are respectively provided with a tooth portion, whereby the first left rod and the second left rod, the third left rod and the fourth left rod, the first right rod and the second right rod, and the third right rod and the fourth right rod can mesh with each other via the corresponding tooth portions, and can The retractable display device is synchronously reversed when changing between the retracted state and the extended state. The retractable display device also includes at least one telescopic track unit, which is provided on the plate shell and corresponding to one side of the flexible screen. When in the extended state, the telescopic track unit is unfolded and jointly supports the flexible roller blind and the flexible screen with the main support rod, the left connecting rod group and the right connecting rod group. The retractable display device also includes a plurality of magnetic members, which are provided on the telescopic track unit and the main support rod for magnetically adsorbing the flexible screen or the flexible roller blind.

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