Telescopic flexible screen structure

Abstract

The telescopic flexible screen structure mainly comprises a main machine body, wherein a main supporting plate of the main machine body is provided with at least one first fixing plate and a plurality of first fixing guide plates; one end of the soft screen bypasses a first shaft rod of a first extension machine body and is combined with a first connecting piece; the at least one first horizontal gear is in toothed connection with the first tooth row of the at least one first fixing plate and the at least one first rack of the first connecting piece; a plurality of first movable guide plates and a plurality of first fixed guide plates of a first supporting plate are mutually staggered; the second horizontal gear of any transmission module is in tooth connection with the second tooth row of the first movable plate and the first tooth part of one first side rod. A first transmission wheel is in tooth connection with the second tooth portion of the first side rod and the third tooth portion of a linkage rod, and a gear portion of at least one motor is in tooth connection with the fourth tooth portion of the linkage rod, so that the flexible screen is stretched out and drawn back through linkage.

Description

Technical Field

[0001] This utility model relates to a telescopic flexible screen structure, and more particularly to a flexible screen that can quickly extend and retract while maintaining the planar integrity of the flexible screen. Background Technology

[0002] The development and application of flexible display technology have enabled display devices to not only display a larger area of ​​flexible screen / flexible display panel when extended, but also to fold the flexible screen as needed to facilitate carrying or reduce the space occupied.

[0003] For example, the Taiwan Patent Publication No. TWI751872B, entitled "Flexible Display Device and Portable Electronic Device," illustrates a retractable flexible screen structure. The flexible display device includes a first housing, a second housing, a frame, and a flexible screen. The second housing is movably assembled to the first housing to form a drawer-like configuration, allowing the second housing to slide relative to the first housing and switch between an extended and retracted state. The frame is movably assembled to the second housing. The flexible screen has opposing first and second ends and includes a first display area and a second display area. The first end is connected to the first housing, and the second end is connected to the frame. In the retracted state, the first display area is exposed outside the first and second housings, and the flexible screen bends so that the second display area is retracted within the first and second housings. During the transition from the folded state to the extended state, the second housing is pulled out from the first housing and moves the frame in the same direction to unfold and flatten the second display area. During the transition from the extended state to the folded state, the second housing is folded into the first housing and moves the frame in the same direction to fold the second display area into the first and second housings. In this way, a larger display area of ​​the first and second display areas can be formed when the second housing is folded out, and the second display area can be stored in the second housing as needed, which is convenient for carrying and reduces the space occupied by it.

[0004] However, when the flexible screen in the TWI751872B patent is fully unfolded, the bottom surface of the flexible screen cannot provide comprehensive support, which can easily cause the flexible screen to dent or deform. In addition, the flexible screen telescopic structure is usually equipped with a motor to automatically unfold or retract the flexible screen through electronic control, so that the user does not need to operate it manually, and it can also avoid damage to the flexible screen and telescopic mechanism due to uneven force; however, the motor assembly is relatively large, and if it is placed in the display body, it will increase the thickness of the body, and it is also necessary to consider how to make the two sides of the body extend and retract quickly and synchronously. Utility Model Content

[0005] In view of this, in order to provide a structure that is different from the existing technology and to improve the above-mentioned shortcomings, the inventor has accumulated many years of experience and continuous research and development, resulting in this utility model.

[0006] One objective of this invention is to provide a retractable flexible screen structure and a portable electronic device, which can improve the problem of dents or deformation of the flexible screen after it is fully unfolded in the aforementioned "flexible display device and portable electronic device" design. The invention enables the flexible screen to be quickly extended and retracted by at least one transmission module to drive an extension body, or by simultaneously driving two extension bodies, thereby improving usage efficiency. Furthermore, the invention utilizes various gear combinations to reduce the overall volume of the transmission mechanism. At the same time, the invention employs two interlocking grid plate structures to ensure that the flexible screen still has sufficient supporting force when unfolded, thus maintaining the planar integrity of the flexible screen.

[0007] To achieve the aforementioned objectives, the telescopic flexible screen structure of this utility model includes a main body, a first extension body, a first connector, and at least one transmission module. The main body has a main support plate, which has at least one first fixed plate and a plurality of first fixed guide plates arranged at intervals. One side of the first fixed plate has a first gear row. The first extension body has a first shaft, at least one first spur gear, at least one first moving plate, and a first support plate. One end of the flexible screen passes around the first shaft. The first spur gear meshes with the first gear row. One side of the first moving plate has a second gear row. The first support plate has a plurality of first moving guide plates arranged at intervals. The plurality of first moving guide plates and the plurality of first fixed guide plates are located on the same plane and are interleaved. The first connector connects to one end of the flexible screen. The first connector has… At least one first rack, which meshes with at least one first spur gear, allows the first connector to slide relative to the first fixed plate; and any transmission module includes a second spur gear, a first side rod, a first transmission wheel, and a connecting rod. The second spur gear meshes with a second gear row. One end of the first side rod has a first tooth that meshes with the second spur gear. The other end of the first side rod has a second tooth that meshes with the first transmission wheel. One end of the connecting rod has a third tooth that meshes with the first transmission wheel. The other end of the connecting rod has a fourth tooth. At least one motor has a gear section at one end that meshes with the fourth tooth.

[0008] In practice, the first spur gear is a spur gear, the first side rod and the connecting rod are helical gears, and the second spur gear and the first transmission wheel are helical gears.

[0009] In practice, the transmission module also includes a frame plate, which is fixed to the main body. The first transmission wheel is pivotally connected to the frame plate. The plate surface of the frame plate has at least one positioning groove for accommodating the second tooth of the positioning first side rod and the third tooth of the connecting rod.

[0010] In implementation, the transmission module also includes a torque module connected to one side of the frame plate. The torque module includes at least one long plate and at least one friction plate. The at least one friction plate is sandwiched between the at least one long plate. A linkage rod passes through the at least one friction plate and the at least one long plate, and the linkage rod is connected to the at least one friction plate in a synchronous manner. When the linkage rod rotates, the at least one friction plate and the at least one long plate rub against each other to generate torque.

[0011] In implementation, the first side rod includes a first long rod and a first rod. One end of the first long rod has a first tooth. A first bushing coaxially connects the other end of the first long rod and one end of the first rod. The other end of the first rod has a second tooth.

[0012] In practice, the linkage includes a third long rod and a third rod. One end of the third long rod has a third tooth. A third bushing is coaxially sleeved on the other end of the third long rod and one end of the third rod. The other end of the third rod has a fourth tooth.

[0013] In implementation, this utility model also includes two connecting seats and at least one elastic component. The two connecting seats are pivotally connected to both ends of the first shaft, and the flexible screen passes around the first shaft and the two connecting seats. The elastic component includes a movable member, a fixed member, and an elastic element. One end of the movable member is connected to the connecting seat, and the movable member has a slot. A headed screw passes through the slot, and one head of the headed screw limits the movable member. One end of the fixed member is connected to the first support plate, and the other end of the fixed member abuts against the other end of the movable member. A limiting groove is provided between the fixed member and the movable member to accommodate and limit the elastic element. The elastic element is in a compressed state, and its two ends abut against the fixed member and the movable member respectively, so that the elastic element pushes against the movable member and causes relative displacement between the movable member and the fixed member. A threaded portion of the headed screw passes through the elastic element to lock the fixed member.

[0014] In implementation, this utility model further includes multiple second fixed guide plates, at least one second fixed plate, a second extension body, a second connector, and a second side rod. One side of the main support plate has multiple first fixed guide plates, each extending outwards in parallel directions away from one side. The other side of the main support plate has multiple second fixed guide plates, each extending outwards in parallel directions away from the other side. One side of the second fixed plate has a third gear rack. The second extension body has a second shaft, at least one third spur gear, at least one second moving plate, and a second support plate. The other end of the flexible screen passes around the second shaft, and the third spur gear meshes with the third gear row. One side of the second movable plate has a fourth gear row. The second support plate has a plurality of second movable guide plates arranged at intervals. The plurality of second movable guide plates and the plurality of second fixed guide plates are located on the same plane and are interleaved with each other. The second connector is connected to the other end of the flexible screen. The second connector has at least one second rack, which meshes with the third spur gear, allowing the second connector to slide relative to the second fixed plate. One end of the second side rod has a second tooth, and the other end of the second side rod has a fifth tooth, which meshes with a fourth spur gear.

[0015] In practice, at least one first fixing plate is overlapped and fixed on multiple first fixing guide plates, and at least one second fixing plate is overlapped and fixed on multiple second fixing guide plates.

[0016] In practice, the second side rod includes a second long rod and a second rod. One end of the second long rod has a fifth tooth. A second bushing is coaxially sleeved on the other end of the second long rod and one end of the second rod. The other end of the second rod has a second tooth.

[0017] In practice, the first side rod and the second side rod are integrally formed long oval rods, and there is a second tooth between the first side rod and the second side rod.

[0018] In implementation, the transmission module also includes a second transmission wheel, a transition rod, and a frame plate. The second transmission wheel is geared to a second tooth, and one end of the transition rod has a sixth tooth that is geared to the second transmission wheel. The frame plate is fixed to the main body, and the first and second transmission wheels are pivotally connected to the frame plate. The plate surface of the frame plate has at least one positioning groove for accommodating the second tooth of the positioning first side rod, the third tooth of the connecting rod, and the sixth tooth of the transition rod.

[0019] In practice, at least one motor includes a first motor and a second motor, the first motor and the second motor are respectively connected to a rotating shaft, and the rotating shaft has a gear section.

[0020] 1. The beneficial effects of this utility model are as follows: by using a motor to drive an extension body or simultaneously drive two extension bodies, the flexible screen can be quickly extended and retracted to improve usage efficiency; by using two coaxial motors to drive a rotating shaft simultaneously, readily available motors and matching body dimensions can be used to save costs; and through the two intersecting grid plate structures, when the flexible screen is unfolded, the two grid plate structures can be located on the same plane, generating sufficient supporting force to maintain the planar integrity of the flexible screen.

[0021] 2. At least one motor connects to each extended body via at least one modular transmission module. This not only reduces the space required for transmission and makes the module thinner, but also allows for multi-directional assembly methods based on different overall designs, providing considerable flexibility in use. Furthermore, the connection between the first and second transmission modules via an adapter rod, and the coaxial connection between the third long rod and the third rod of the linkage via a third bushing, facilitates the operator in fixing the assembled first transmission module to the main body and then connecting it to at least one motor or the second transmission module via the adapter rod.

[0022] 3. A torque module is provided on one side of at least one frame plate, which can effectively eliminate the idle stroke caused by the tooth gap in the structure when the flexible screen is open or closed, so as to prevent loosening between the various parts, keep the flexible screen wound on the body in a taut state, and keep the first extension body and the second extension body firmly stopped at a predetermined position.

[0023] To facilitate a deeper understanding of this utility model, it is described in detail below. Attached Figure Description

[0024] Figure 1 This is a three-dimensional view of the preferred embodiment of the present invention when it has a flexible screen.

[0025] Figure 2 This is a three-dimensional appearance diagram of a preferred embodiment of the present invention.

[0026] Figure 3 This is a three-dimensional appearance diagram of a preferred embodiment of the present invention.

[0027] Figure 4 for Figure 3 A magnified view of part a.

[0028] Figure 5 for Figure 3 A-A' cross-sectional view.

[0029] Figure 6 This is a three-dimensional appearance diagram of some components of a preferred embodiment of the present invention.

[0030] Figure 7 This is a three-dimensional view of the first transmission module of a preferred embodiment of the present invention.

[0031] Figure 8 This is an exploded view of the components of the first transmission module of the preferred embodiment of the present invention.

[0032] Figure 9 This is a partial front view of the first extended body of the preferred embodiment of the present invention when it is unfolded.

[0033] Figure 10 This is a three-dimensional view of the first extension body and the second extension body when they are simultaneously deployed, which is a preferred embodiment of the present invention.

[0034] Figure 11 This is a three-dimensional view of the flexible screen when it is fully unfolded, according to a preferred embodiment of the present invention.

[0035] Figure 12 This is a perspective view of another embodiment of the present invention.

[0036] Figure 13 This is an exploded view of the components of the first transmission module according to another embodiment of the present invention.

[0037] Explanation of reference numerals in the attached figures

[0038] 1: Flexible flexible screen structure;

[0039] 2: Main unit;

[0040] 21: Main support plate;

[0041] 22,22': First fixing plate;

[0042] 221,221': First tooth row;

[0043] 23: First fixed guide plate;

[0044] 24,24': Second fixing plate;

[0045] 241,241': Third tooth row;

[0046] 25: Second fixed guide plate;

[0047] 3: First extended body;

[0048] 31: First framework;

[0049] 32: Connector;

[0050] 33: First shaft;

[0051] 34: Flexible components;

[0052] 341: Active item;

[0053] 342: Fastener;

[0054] 343: Elastic component;

[0055] 344: Grooving;

[0056] 345: Headed screw;

[0057] 346: Head;

[0058] 347: Limiting groove;

[0059] 348: Threaded portion;

[0060] 35: First support plate;

[0061] 351: First moving guide plate;

[0062] 36,36': First spur gear;

[0063] 37,37': First moving plate;

[0064] 371,371': Second tooth row;

[0065] 38: First connector;

[0066] 381,381': First rack;

[0067] 4: Second extended body;

[0068] 41: Second Frame;

[0069] 42: Second shaft;

[0070] 43,43': Third spur gear;

[0071] 44,44': Second moving plate;

[0072] 441,441': Fourth tooth row;

[0073] 45: Second support plate;

[0074] 451: Second moving guide plate;

[0075] 46: Second connector;

[0076] 461,461': Second rack;

[0077] 5: First transmission module;

[0078] 5': Second transmission module;

[0079] 51: Second spur gear;

[0080] 52, 52': First side rod;

[0081] 521: First long pole;

[0082] 522: First shot;

[0083] 523: First tooth;

[0084] 524: First bushing;

[0085] 525: First positioning hole;

[0086] 526: Second tooth;

[0087] 53: First transmission wheel;

[0088] 54: Second transmission wheel;

[0089] 55: Fourth flat gear;

[0090] 56, 56': Second side bar;

[0091] 561: The second longest pole;

[0092] 562: Second shot;

[0093] 563: Fifth tooth;

[0094] 564: Second bushing;

[0095] 565: Second positioning hole;

[0096] 57: Linkage rod;

[0097] 571: The third longest pole;

[0098] 572: Third shot;

[0099] 573: Third tooth;

[0100] 574: Third bushing;

[0101] 575: Third positioning hole;

[0102] 576: Fourth tooth;

[0103] 58, 58': Adapter rod;

[0104] 581: The fourth longest pole;

[0105] 582: Fourth shot;

[0106] 583: Fourth bushing;

[0107] 584: Fourth positioning hole;

[0108] 585: Sixth tooth;

[0109] 59,59': Frame plate;

[0110] 591: Positioning groove;

[0111] 6,6': Torque module;

[0112] 61,61',61”: Long plate;

[0113] 62,62': First pad;

[0114] 63,63': Second gasket;

[0115] 64,64': Friction plate;

[0116] 65: First friction rod;

[0117] 66: Second friction rod;

[0118] 67: End seal;

[0119] 71: First motor;

[0120] 72: Second motor;

[0121] 73,73': Reducer;

[0122] 74: Rotation shaft;

[0123] 75: Gear section;

[0124] 9: Flexible screen;

[0125] 91: First display area;

[0126] 92: Second display area;

[0127] 93: Third display area. Detailed Implementation

[0128] The telescopic flexible screen structure of this utility model includes a main body with a main support plate. The main support plate has at least one first fixed plate and a plurality of first fixed guide plates arranged at intervals. One side of the first fixed plate has a first toothed row. The main support plate and the plurality of first fixed guide plates are located on the same plane. A first extension body has a first shaft, at least one first spur gear, at least one first moving plate, and a first support plate. The first extension body is pivotally connected to both ends of the first shaft through two connecting seats, and one end of a flexible screen passes around the first shaft. At least one first spur gear meshes with at least one first toothed row. One side of any first moving plate has a second toothed row. The first support plate has a plurality of first moving guide plates arranged at intervals. The plurality of first moving guide plates and the plurality of first fixed guide plates are located on the same plane and are interleaved with each other. A first connector engages with one end of the flexible screen. The first connector has at least one first rack, which meshes with at least one first spur gear, thereby allowing the first connector to slide relative to the first fixed plate. At least one transmission module includes a second spur gear, a first side rod, a first transmission wheel, and a connecting rod. The second spur gear meshes with a second gear rack. One end of the first side rod has a first tooth that meshes with the second spur gear. The other end of the first side rod has a second tooth that meshes with the first transmission wheel. One end of the connecting rod has a third tooth that meshes with the first transmission wheel. The other end of the connecting rod has a fourth tooth. At least one motor has a gear section at one end that meshes with the fourth tooth, thereby driving the first extension body to extend and retract the flexible screen when the at least one motor is running.

[0129] Please see Figures 1 to 11 As shown, this is a preferred embodiment of the telescopic flexible screen structure 1 of this utility model, including a main body 2, a first extension body 3, a second extension body 4, two transmission modules, and at least one motor. The main body 2 has a main support plate 21, and one side of the main support plate 21 has two first fixing plates 22, 22' and a plurality of first fixing guide plates 23; one side of each of the two first fixing plates 22, 22' has a first tooth row 221, 221', wherein one first tooth row 221 is located at the bottom edge of one first fixing plate 22, and the other first tooth row 221' is located at the top edge of the other first fixing plate 22'; the plurality of first fixing guide plates 23 are located on the same plane as the main support plate 21, and the plurality of first fixing guide plates 23 are spaced apart and arranged in a grid shape, and the plurality of first fixing guide plates 23 extend outward in a direction away from the side of the main support plate 21; the two first fixing plates 22, 22' are respectively overlapped and fixed on two of the plurality of first fixing guide plates 23.

[0130] The other side of the main support plate 21 has two second fixing plates 24, 24' and a plurality of second fixing guide plates 25; one side of each of the two second fixing plates 24, 24' has a third toothed row 241, 241', wherein one third toothed row 241 is located at the bottom edge of one second fixing plate 24, and the other third toothed row 241' is located at the top edge of the other second fixing plate 24'; the plurality of second fixing guide plates 25 are located on the same plane as the main support plate 21, the plurality of second fixing guide plates 25 are arranged at intervals and in a grid shape, and the plurality of second fixing guide plates 25 extend outward in a direction away from the other side of the main support plate 21; the two second fixing plates 24, 24' are respectively overlapped and fixed on two of the plurality of second fixing guide plates 25.

[0131] The first extension body 3 has a first frame 31 open on one side. The first frame 31 has two connecting seats 32, a first shaft 33, an elastic component 34, a first support plate 35, two first spur gears 36, 36', two first moving plates 37, 37' and a first connector 38. Two connecting seats 32 are pivotally connected to the two ends of the first shaft 33, so that one side of the flexible screen 9 can simultaneously pass over the two connecting seats 32 and the first shaft 33; the two connecting seats 32 are respectively connected to one end of two elastic components 34, each of which includes a movable member 341, a fixed member 342 and an elastic member 343. One end of the movable member 341 is connected to the connecting seat 32. The movable member 341 has a T-shaped slot 344. A headed screw 345 passes through the slot 344, and the head 346 of the headed screw 345 is limited within the movable member 341; one end of the fixed member 342 is connected to the first support plate 35, and the other end of the fixed member 342 abuts against the other end of the movable member 341. A limiting groove 347 is provided between the fixed member 342 and the movable member 341 to accommodate and limit a compression spring, which serves as the elastic member 343. A threaded portion 348 of the headed screw 345 passes through the elastic member 343 to lock the fixed member 342. When the elastic member 343 is in a compressed state and its two ends abut against the movable member 341 and the fixed member 342 respectively, the elastic member 343 can push against the movable member 341 and cause relative displacement between the movable member 341 and the fixed member 342 to absorb the gap between the first shaft 33 and the first moving guide plate 351.

[0132] The first support plate 35 has a plurality of first movable guide plates 351 arranged at intervals in a grid pattern. The plurality of first movable guide plates 351 and the plurality of first fixed guide plates 23 are interleaved and located on the same plane. The two first spur gears 36, 36' are both spur gears. The two first spur gears 36, 36' are respectively confined within the first frame 31 and move synchronously with the first frame 31. One of the two first spur gears 36, 36' engages upward with the first tooth row 221 of the first fixed plate 22, and the other first spur gear 36' engages downward with the first tooth row 221' of the other first fixed plate 22'. Each of the two first movable plates 37, 37' has a second tooth row 371, 371' on one side. One of the second tooth rows 371 is located at the bottom edge of one first movable plate 37, and the other second tooth row 371' is located at the bottom edge of the other first movable plate 37'.

[0133] The first connector 38 is an elongated plate for connecting one side of the flexible screen 9. The bottom end of the first connector 38 is connected to one end of a first rack 381, and the top end of the first connector 38 is connected to one end of another first rack 381'. The two first racks 381 and 381' are symmetrical and parallel to each other. The first spur gear 36 meshes with the first rack 381 and the first gear row 221, respectively, and the other first spur gear 36' meshes with the other first rack 381' and the other first gear row 221', thereby allowing the first connector 38 to move relative to the two first fixed plates 22 and 22', and allowing the multiple first moving guide plates 351 and the multiple first fixed guide plates 23 to slide relative to each other.

[0134] The second extension body 4 and the first extension body 3 are respectively located adjacent to both sides of the main body 2, and the second extension body 4 and the first extension body 3 have symmetrical shapes and structures to display a first display area 91 on the screen of the flexible screen 9. The second extension body 4 has a second frame 41 open on one side. The second frame 41 mainly includes a second shaft 42, two third spur gears 43, 43', two second moving plates 44, 44', a second support plate 45, and a second connector 46. The two ends of the second shaft 42 are pivotally connected to a connecting seat. The other end of the flexible screen 9 passes around the two connecting seats and the second shaft 42. The two connecting seats are respectively connected to one end of two elastic components to absorb the gap between the second shaft 42 and the second moving plate 44. The two third spur gears 43, 43' are both spur gears, and the two third spur gears 43, 43' respectively mesh with the third gear rows 241, 241' of the two second fixed plates 24, 24'. Each of the two second movable plates 44, 44' has a fourth toothed row 441, 441' on one side. The second support plate 45 has a plurality of second movable guide plates 451 arranged at intervals and in a grid pattern. The plurality of second movable guide plates 451 and the plurality of second fixed guide plates 25 are located on the same plane and are interlaced with each other. The second connector 46 is connected to the other end of the flexible screen 9. The bottom end and the top end of the second connector 46 have a second rack 461, 461' respectively. The two second racks 461, 461' respectively mesh with two third spur gears 43, 43', so as to allow the second connector 46 to move relative to the two second fixed plates 24, 24' and to allow the plurality of second movable guide plates 451 and the plurality of second fixed guide plates 25 to slide relative to each other. In practice, the first spur gear 36, 36' and the third spur gear 43, 43' can also be helical gears, and the two first gear rows 221, 221', the two first racks 381, 381', the two third gear rows 241, 241' and the two second racks 461, 461' can also be helical racks.

[0135] The two transmission modules include a first transmission module 5 and a second transmission module 5', which are arranged side by side with an upper and lower gap and have a symmetrical shape and structure. The first transmission module 5 will be described below, which includes a second spur gear 51, a first side rod 52, a first transmission wheel 53, a second transmission wheel 54, a fourth spur gear 55, a second side rod 56, a connecting rod 57, a transition rod 58, and a frame plate 59. The second spur gear 51, the first transmission wheel 53, the second transmission wheel 54, and the fourth spur gear 55 are all helical gears; in practice, they can also be worm gears. The second spur gear 51 meshes with the second gear row 371 of the first moving plate 37; the first side rod 52, the second side rod 56, and the connecting rod 57 are all helical gears, or in practice, they can all be worm gears. The first side rod 52 includes a first long rod 521 and a first rod 522 extending laterally. One end of the first long rod 521 has a helical first tooth 523, which meshes with the second spur gear 51; a first bushing 524 has a D-shaped first positioning hole 525, which coaxially meshes the other end of the first long rod 521 and one end of the first rod 522. The other end of the first rod 522 has a helical second tooth 526, which meshes downward with the first transmission wheel 53 and upward with the second transmission wheel 54; the fourth spur gear 55 meshes with the fourth gear row 441 of the second moving plate 44.

[0136] The second side rod 56 and the first side rod 52 are preferably integrally formed elongated rods. The second side rod 56 includes a second long rod 561 and a second rod 562 extending laterally. One end of the second long rod 561 has a helical fifth tooth 563, which meshes upward with a fourth spur gear 55. A second bushing 564 has a D-shaped second positioning hole 565, which coaxially connects the other end of the second long rod 561 and one end of the second rod 562. The other end of the second rod 562 has a second tooth 526, which is located between the second side rod 56 and the first side rod 52.

[0137] The linkage 57 includes a vertically extending third long rod 571 and a third rod 572. The top end of the third long rod 571 has a helical third tooth 573, which is laterally engaged with the first transmission wheel 53. A third bushing 574 has a D-shaped third positioning hole 575, which is used to coaxially connect the bottom end of the third long rod 571 and the top end of the third rod 572. The bottom end of the third rod 572 has a helical fourth tooth 576.

[0138] The adapter rod 58 includes a vertically extending fourth long rod 581 and a fourth rod 582. The top end of the fourth long rod 581 is connected upward to the second transmission module 5', thereby driving the first side rod 52' and the second side rod 56' of the second transmission module 5'. A fourth bushing 583 has a D-shaped fourth positioning hole 584, which is used to coaxially fit the bottom end of the fourth long rod 581 and the top end of the fourth rod 582. The bottom end of the fourth rod 582 has a helical sixth tooth 585, which is laterally engaged with the second transmission wheel 54.

[0139] The frame plate 59 is a square flat plate, which is fixed to the main body 2. The inner side plate of the frame plate 59 has multiple positioning grooves 591 to accommodate the positioning first rod 522, second tooth 526, second rod 562, third long rod 571, third tooth 573, fourth rod 582 and sixth tooth 585. At the same time, the first transmission wheel 53 and the second transmission wheel 54 are respectively pivotally connected to the plate surface of the frame plate 59.

[0140] At least one motor includes a first motor 71 and a second motor 72, which are arranged in opposite directions. After being connected to a reducer 73, 73' respectively, a rotating shaft 74 is also connected. The rotating shaft 74 has a helical gear portion 75, which is laterally engaged with a fourth tooth portion 576.

[0141] In this way, such as Figure 2 and Figures 9-11 As shown, when the first motor 71 and the second motor 72 rotate synchronously to drive the connecting rod 57, the two first side rods 52, 52' rotate in the same direction, and the two first spur gears 36, 36' and the two first moving plates 37, 37' move synchronously, so that the two first spur gears 36, 36' and the first extension body 3 can move outward in a direction away from the main body 2; and by the two first spur gears 36, 36' respectively meshing with the first gear rows 221, 221' of the two first fixed plates 22, 22', the two first gear rows 221, 221' can move relative to the two first spur gears 36, 36' respectively. Among them, multiple first fixed guide plates 23 and two first racks 381, 381' rotate in opposite directions by the same distance relative to the two first spur gears 36, 36'. Since multiple first fixed guide plates 23 are fixed on the main body 2, the two first racks 381, 381' will move twice the distance relative to the first extension body 3, thereby offsetting twice the width of the flexible screen 9 of the second display area 92, so that one side of the first extension body 3 and the flexible screen 9 move simultaneously to display the first display area 91 and the second display area 92.

[0142] Furthermore, by rotating the two second side rods 56, 56' in the same direction, and by moving the two third spur gears 43, 43' and the two second moving plates 44, 44' synchronously, the two third spur gears 43, 43' can move outward along with the second extension body 4 in a direction away from the other side of the main body 2. And by the two third spur gears 43, 43' respectively meshing with the third gear rows 241, 241' of the two second fixed plates 24, 24', the two third gear rows 241, 241' can move relative to the two third spur gears 43, 43' respectively. Among them, multiple second fixed guide plates 25 and two second racks 461, 461' rotate in opposite directions by the same distance relative to the two third spur gears 43, 43'. Since multiple second fixed guide plates 25 are fixed on the main body 2, the two second racks 461, 461' will move twice the distance relative to the two third spur gears 43, 43', thereby offsetting twice the width of the flexible screen 9 of the third display area 93, so that the other side of the second extension body 4 and the flexible screen 9 move simultaneously to display the first display area 91 and the third display area 93.

[0143] Figure 12 and Figure 13 This is another embodiment of the telescopic flexible screen structure 1 of the present invention. The difference from the preferred embodiment is that the first transmission module 5 of this embodiment further includes a torque module 6. The torque module 6 mainly includes three long plates 61, 61', 61"; two first pads 62, 62'; two second pads 63, 63'; two friction plates 64, 64'; a first friction rod 65; and a second friction rod 66. The first pads 62, 63, and 64 are simultaneously sandwiched between the two long plates 61, 61'; the first pads 62', 63', and 64' are simultaneously sandwiched between the two long plates 61', 61"; friction rod After passing through three long plates 61, 61', 61" and two first washers 62, 62', the second friction rod 66 passes through three long plates 61, 61', 61" and two second washers 63, 63' and is then locked to the bottom side of the frame plate 59 with an end seal 67, thereby connecting the torque module 6 to one side of the frame plate 59. The third long rod 571 of the linkage rod 57 passes through two friction plates 64, 64' and three long plates 61, 61', 61" and the linkage rod 57 connects the two friction plates 64, 64' in a synchronous manner, so that when the linkage rod 57 rotates, each friction plate 64, 64' rubs against each long plate 61, 61', 61" to generate torque. In practice, the second transmission module 5' has another torque module 6', another adapter rod 58' passes upward through the torque module 6', and the torque module 6' is connected to the top side of another frame 59', which can also be used with the adapter rod 58' to generate torque.

[0144] In summary, this invention enables the flexible screen to extend and retract rapidly by using a single motor to drive one extension body or simultaneously connecting two extension bodies, thereby improving efficiency. Furthermore, by using two coaxial motors to simultaneously drive a rotating shaft, readily available motors and compatible body dimensions can be used, saving costs. Additionally, the interlaced grid plate structure ensures that the two grid plate structures are on the same plane when the flexible screen is unfolded, generating sufficient support to maintain the planar integrity of the flexible screen. Moreover, at least one motor connects each extension body via at least one modular transmission module, which not only reduces the space required for transmission and makes the transmission module thinner, but also allows for multi-directional assembly methods based on different overall designs, providing considerable flexibility in use. Furthermore, the connection between the first and second transmission modules via an adapter rod, and the coaxial connection between the third long rod and the third rod of the connecting rod via a third bushing, facilitates the operator's installation of the assembled first transmission module onto the main body before connecting it to at least one motor or the second transmission module via the adapter rod. A torque module is provided on one side of at least one frame plate, which can effectively eliminate the empty stroke caused by the tooth gap in the structure when the flexible screen is open or closed, so as to prevent loosening between the various bodies, keep the flexible screen wound on the body in a taut state, and keep the first extension body and the second extension body firmly stopped in a predetermined position.

[0145] While this utility model discloses preferred embodiments to achieve the above objectives, it is not intended to limit the structural features of this utility model. Any changes or modifications that can be easily conceived by those skilled in the art under the technical spirit of this utility model are possible and are all covered by the patent application scope of this utility model.

Claims

1. A telescopic flexible screen structure, characterized in that, include: A main body having a main support plate having at least one first fixing plate and a plurality of first fixing guide plates arranged at intervals, and a first toothed row on one side of the first fixing plate. A first extension body has a first shaft, at least one first spur gear, at least one first movable plate and a first support plate. One end of a flexible screen passes around the first shaft. The first spur gear meshes with the first gear row. One side of the first movable plate has a second gear row. The first support plate has a plurality of first movable guide plates arranged at intervals. The plurality of first movable guide plates and the plurality of first fixed guide plates are located on the same plane and are interleaved with each other. A first connector, which engages with one end of the flexible screen, the first connector having at least one first rack that meshes with the at least one first spur gear, for the first connector to slide relative to the first fixing plate; and At least one transmission module, each of which includes a second spur gear, a first side rod, a first transmission wheel, and a connecting rod. The second spur gear meshes with the second gear rack. One end of the first side rod has a first tooth that meshes with the second spur gear. The other end of the first side rod has a second tooth that meshes with the first transmission wheel. One end of the connecting rod has a third tooth that meshes with the first transmission wheel. The other end of the connecting rod has a fourth tooth. At least one motor has a gear portion at one end that meshes with the fourth tooth.

2. The telescopic flexible screen structure as described in claim 1, characterized in that, The first spur gear is a spur gear, the first side rod and the connecting rod are helical gears, and the second spur gear and the first transmission wheel are helical gears.

3. The telescopic flexible screen structure as described in claim 1 or 2, characterized in that, The transmission module also includes a frame plate, which is fixed to the main body. The first transmission wheel is pivotally connected to the frame plate. The frame plate has at least one positioning groove on its surface to accommodate the second tooth of the first side rod and the third tooth of the linkage rod.

4. The telescopic flexible screen structure as described in claim 3, characterized in that, The transmission module also includes a torque module connected to one side of the frame plate. The torque module includes at least one long plate and at least one friction plate. The at least one friction plate is sandwiched between the at least one long plate. The linkage rod passes through the at least one friction plate and the at least one long plate, and the linkage rod is connected to the at least one friction plate in a synchronous manner. When the linkage rod rotates, the at least one friction plate and the at least one long plate rub against each other to generate torque.

5. The telescopic flexible screen structure as described in claim 1, characterized in that, The first side rod includes a first long rod and a first rod. One end of the first long rod has the first tooth. A first bushing coaxially connects the other end of the first long rod and one end of the first rod. The other end of the first rod has the second tooth.

6. The telescopic flexible screen structure as described in claim 1 or 5, characterized in that, The linkage includes a third long rod and a third rod. One end of the third long rod has the third tooth. A third bushing is coaxially sleeved on the other end of the third long rod and one end of the third rod. The other end of the third rod has the fourth tooth.

7. The telescopic flexible screen structure as described in claim 1, characterized in that, It also includes two connecting seats and at least one elastic component. The two connecting seats are pivotally connected to both ends of the first shaft, and the flexible screen passes around the first shaft and the two connecting seats. The elastic component includes a movable member, a fixed member, and an elastic element. One end of the movable member is connected to the connecting seat. The movable member has a slot, and a headed screw passes through the slot. One head of the headed screw limits the movable member. One end of the fixed member is connected to the first support plate, and the other end of the fixed member abuts against the other end of the movable member. A limiting groove is provided between the fixed member and the movable member to accommodate and limit the elastic element. The elastic element is in a compressed state, and its two ends abut against the fixed member and the movable member respectively, so that the elastic element pushes against the movable member and causes relative displacement between the movable member and the fixed member. A threaded portion of the headed screw passes through the elastic element to lock the fixed member.

8. The telescopic flexible screen structure as described in claim 1, characterized in that, It also includes multiple second fixed guide plates, at least one second fixed plate, a second extension body, a second connector, and a second side rod. One side of the main support plate has the multiple first fixed guide plates, which extend outwards in parallel directions away from that side. The other side of the main support plate has the multiple second fixed guide plates, which extend outwards in parallel directions away from that other side. One side of each second fixed plate has a third gear rack. The second extension body has a second shaft, at least one third spur gear, at least one second moving plate, and a second support plate. The other end of the flexible screen bypasses... The second shaft, the third spur gear meshing with the third gear row, and the second movable plate having a fourth gear row on one side; the second support plate having a plurality of second movable guide plates spaced apart, the plurality of second movable guide plates and the plurality of second fixed guide plates being located on the same plane and intersecting each other; the second connector engaging the other end of the flexible screen, the second connector having at least one second rack, the second rack meshing with the third spur gear, allowing the second connector to slide relative to the second fixed plate; one end of the second side rod having the second tooth, and the other end of the second side rod having a fifth tooth, the fifth tooth meshing with a fourth spur gear.

9. The telescopic flexible screen structure as described in claim 8, characterized in that, The at least one first fixing plate is overlapped and fixed on the plurality of first fixing guide plates, and the at least one second fixing plate is overlapped and fixed on the plurality of second fixing guide plates.

10. The telescopic flexible screen structure as described in claim 8, characterized in that, The second side rod includes a second long rod and a second rod. One end of the second long rod has the fifth tooth. A second bushing is coaxially sleeved on the other end of the second long rod and one end of the second rod. The other end of the second rod has the second tooth.

11. The telescopic flexible screen structure as described in claim 8, characterized in that, The first side rod and the second side rod are integrally formed elongated cylindrical rods, and the second side rod and the second side rod have the second toothed portion between them.

12. The telescopic flexible screen structure as described in claim 1 or 8, characterized in that, The transmission module also includes a second transmission wheel, a connecting rod, and a frame. The second transmission wheel is engaged with the second tooth. One end of the connecting rod has a sixth tooth, which is engaged with the second transmission wheel. The frame is fixed to the main body. The first transmission wheel and the second transmission wheel are pivotally connected to the frame. The frame has at least one positioning groove on its surface to accommodate the second tooth of the first side rod, the third tooth of the connecting rod, and the sixth tooth of the connecting rod.

13. The telescopic flexible screen structure as described in claim 1, characterized in that, The at least one motor includes a first motor and a second motor, the first motor and the second motor are respectively connected to a rotating shaft, and the rotating shaft has the gear portion.

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