Main body structure and vehicle-mounted ceiling foldable display device

Abstract

The utility model provides a main body structure and a vehicle-mounted ceiling foldable display device, the main body structure comprises a roof mounting structure and a plurality of folding frames, the plurality of folding frames are hinged in sequence to enable the folding frames to be folded and unfolded, the folding frame at the head end is rotatably connected with the roof mounting structure, and the folding frame at the tail end is rotatably connected with the roof mounting structure. And the folding frame at the head end and the folding frame at the tail end are respectively provided with a flexible screen connecting structure for supporting the flexible screen. The vehicle-mounted ceiling display device based on the flexible screen can be adopted in a vehicle, the occupied area of the roof is reduced through screen folding, meanwhile, large-screen display can be achieved, the influence on two rows of passengers due to the arrangement of the roof display screen can be reduced, and furthermore, the size-variable screen can be obtained, so that the vehicle-mounted ceiling display device is convenient to use. And different video specifications can be better adapted.

Description

Technical Field

[0001] The utility model relates to a vehicle-mounted ceiling display device and a main body structure thereof. Background Art

[0002] The current on-board ceiling display devices for new energy SUVs or MPVs on the market have only fixed screen specifications, and are similar to the overhead displays in the economy class of airplanes, which can be opened and folded up. Since SUVs often have sunroofs, even if the ceiling display is of ordinary size, its height is generally at least 25cm, which will reduce the second-row passengers' experience of the sunroof and limit the top line of sight. In addition, the compatible video specifications are also limited, and it is difficult to expand the display screen. If a projection screen is used, although the screen size will be larger, the low resolution will be a defect. Utility Model Content

[0003] The first purpose of the utility model is to provide a main structure that can support a large display screen while reducing the area occupied by the skylight above the second row. To this end, the utility model adopts the following technical solutions:

[0004] A main structure includes a roof mounting structure, characterized in that it also includes multiple folding frames, which are hinged in sequence so that they can be folded and opened, the folding frame at the front end is rotatably connected to the roof mounting structure, and the folding frame at the front end and the folding frame at the rear end are respectively provided with flexible screen connection structures to support the flexible screen.

[0005] On the basis of adopting the above technical solutions, the present invention can also adopt the following further technical solutions, or use these further technical solutions in combination:

[0006] A decorative cover is arranged on the back of the folding frame.

[0007] Each folding frame is provided with a flexible screen support structure.

[0008] The main structure is also provided with an electric drive device to drive the folding frame to fold and / or drive the folding frame to open.

[0009] The number of the plurality of folding frames is greater than or equal to 3, and some of the folding frames can be folded while some of the folding frames are opened.

[0010] At least two of the plurality of folding frames are provided with their own electric drive devices so that some of the folding frames can be folded and some of the folding frames can be opened.

[0011] The multiple folding frames have folding frames of different heights so that the display screen can be divided into multiple folding parts of different heights.

[0012] At least one of the multiple folding frames is a retractable folding frame and is configured as a retractable mechanism for the flexible screen, so that the size of the display screen can be finely adjusted.

[0013] The roof mounting structure is provided with a rotating device so that the folding frame can be rotated left and right to adjust the direction.

[0014] The second purpose of the utility model is to provide a vehicle-mounted ceiling-mounted foldable display device that can provide a large display screen while reducing the area occupied by the sunroof above the second row. To this end, the utility model adopts the following technical solutions:

[0015] A vehicle-mounted ceiling-mounted foldable display device, characterized in that: the vehicle-mounted ceiling-mounted foldable display device is provided with a display screen and any one of the above-mentioned main structures, the display screen is a flexible screen; the flexible screen is connected to a flexible screen connecting structure, and can fold and flatten the flexible screen, and support the flexible screen.

[0016] Due to the adoption of the technical solution of the utility model, the utility model can adopt a vehicle-mounted ceiling display device based on a flexible screen in the vehicle, reduce the occupied roof area by folding the screen, and at the same time obtain a large-screen display, which can reduce the impact of the roof display screen on the second row of passengers, and further, a screen of variable size can be obtained to better adapt to different video specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of Example 1 of the utility model in a folded state.

[0018] Figure 1-1 This is a schematic diagram of the display status of Example 1 of the utility model after the front end folding frame is opened.

[0019] Figure 1-2 This is a schematic diagram of the display status of Example 1 of the utility model after the two folding frames are opened.

[0020] Figure 1-3 This is a schematic diagram of the display state when the three folding frames of Example 1 of the utility model are all opened.

[0021] Figure 1-4 This is a schematic diagram of the electric drive device of Example 1 of the utility model.

[0022] Figure 1-5 It is a schematic diagram of the roof mounting structure and the connection structure with the head end folding frame of Example 1 of the utility model.

[0023] Figure 2 It is a schematic structural diagram of Example 2 of the utility model in a folded state.

[0024] Figure 2-1This is a schematic diagram of the display status of Example 2 of the utility model after the front end folding frame is opened.

[0025] Figure 2-2 This is a schematic diagram of the display state when the two folding frames of Example 2 of the utility model are both opened.

[0026] Figure 3 It is a schematic diagram of the display state of Example 3 when the head end folding frame is opened and the head end folding frame is extended to a certain length.

[0027] Figure 3-1 This is a schematic diagram of a portion of the structure of Embodiment 3 when Embodiment 3 is viewed from the back and the front end folding frame has not yet been extended.

[0028] Figure 3-2 It is a schematic diagram of a part of the structure of Example 3 when Example 3 is observed from the back and the front end folding frame has been extended.

[0029] Figure 4 It is a schematic diagram of Example 4 of the utility model in a folded state.

[0030] Figure 4-1 It is a schematic diagram of the main structure when the three folding frames of Example 4 of the utility model are all opened.

[0031] Figure 4-2 It is a schematic diagram of the use state of Example 4 of the utility model in which the three folding frames are all opened and rotated to the left to adjust the direction.

[0032] Figure 4-3 It is a schematic diagram of the roof mounting structure of Example 4.

[0033] Figure 5 It is a schematic diagram of Example 5 of the utility model in a folded state.

[0034] Figure 5-1 It is a schematic diagram of the main structure when the three folding frames of Example 5 of the utility model are all opened.

[0035] Figure 5-2 It is a schematic diagram of the display state of the first end folding frame of Example 5 of the utility model when it is opened and the first end folding frame is extended to a certain length.

[0036] Figure 5-3 This is a schematic diagram of the usage state of Example 5 when the head end folding frame is opened and the head end folding frame is extended to a certain length and rotated left to adjust the direction. DETAILED DESCRIPTION

[0037] Example 1, reference Figure 1 , Figure 1-1 , Figure 1-2 , Figure 1-3 , Figure 1-4 , Figure 1-5 .

[0038] The vehicle-mounted ceiling-mounted foldable display device of this embodiment includes a main structure and a display screen. The display screen is a flexible screen 102, that is, a foldable screen that can be bent and flattened. The main structure includes a roof mounting structure 101. The roof mounting structure can be a plate structure or a seat structure, a connecting foot structure, and is installed on the roof structure of the car, or it can be a lockable movable structure. For example, a lifting structure, a front-to-back sliding structure or a left-to-right sliding structure, or a left-to-right rotating structure.

[0039] The main structure also includes a plurality of folding frames. This embodiment is a 3-folding frame with three folding frames, which are numbered 131, 132, and 133. The three folding frames 131, 132, and 133 are hinged in sequence so that the folding frames can be folded and opened. The folding direction can be the alternating inner folding and outer folding as shown in the figure of this embodiment. The inner folding is that the flexible screen 102 is folded face to face like a book, and the outer folding is folded in the opposite direction. Considering the simplicity of the structure, it is better to alternate the inner folding and the outer folding, which can absorb the required length changes caused by bending and simplify the hinge structure. The multiple folding frames can also be folded in a "folding quilt" manner, that is, folded continuously along a rotation direction, and the flexible screen 102 can be on the inside of the folding direction or on the outside of the folding.

[0040] Among the multiple folding frames, the folding frame 131 at the head end can be rotatably connected to the roof mounting structure 101 through an existing hinge, such as a hinge consisting of a spring tube and a shaft, or as Figure 1-5 The electric drive is shown, wherein reference numeral 111 is a driving motor, and reference numeral 112 is an axis of the head end folding frame 131. The roof mounting structure 101 is provided with a mounting seat 113, in which the bearings of the motor 111 and the axis 112 are arranged.

[0041] The folding frame 131 at the head end and the folding frame 133 at the tail end are respectively provided with a flexible screen connection structure, and the flexible screen 102 is connected to the flexible screen connection structure, so that the flexible screen 102 can be folded and flattened, and the flexible screen 102 can be supported. The flexible screen connection structure can be a fixed plate surface 105 on the folding frame that can be fixed (such as bonding) to the flexible screen (that is, the head end folding frame 131 in this embodiment adopts this structure), or a clamping structure, etc., or it can be an axis connected to the flexible screen. The flexible screen connection structure can be a structure fixedly connected to the folding frame body, or a sliding mechanism slidably connected to the folding frame body (the tail end folding frame 133 in this embodiment adopts this structure), which can allow one end of the flexible screen to move forward and backward, and the sliding mechanism can also be driven by electricity. Each folding frame can also be provided with a flexible screen support structure. The flexible screen support structure can be a plate, or composed of multiple strips or multiple sheets, or a mixture of the above-mentioned components.

[0042] The folding and opening of the folding frame can be done manually or electrically, and can also be driven by an elastic mechanism when folding or opening. In this embodiment, the main structure is provided with an electric drive device to electrically drive the folding frame to fold and / or open. The electric drive device is provided with one or more motors 107, and a synchronous reverse transmission mechanism 109 is provided between two adjacent folding frames. The synchronous reverse transmission mechanism 109 can be composed of an even number of gear meshing connections, and the gear meshing is also a reduction fit. The motor 107 is connected to one of the gear shafts to drive it to rotate, and the two output shafts 108 of the synchronous reverse transmission mechanism 109 are respectively connected to the connecting frames 110 on both sides, and the connecting frames 110 on both sides are respectively connected to the two adjacent folding frames; the electric drive device can be installed on both sides of the folding frame, or the adjacent folding frame rotating shafts can be driven by a transmission belt to rotate, so as to fold and open the corresponding folding frame. As a result, some of the multiple folding frames can be folded while some are opened, and the display screen can be adjusted to different sizes, which can reduce the area occupied by the skylight exponentially. Please refer to Figure 1-1 , 1-2, 1-3, 1-4, in this embodiment, three screen sizes can be adjusted. More preferably, the ratio of the sum of the flattened heights of the flexible screens corresponding to two adjacent folding frames, or three adjacent folding frames to the width of the flexible screens may be adapted to a display format; or, it may also be: according to the order of folding, the ratio of the flattened height of the flexible screen corresponding to the folding frame that is folded and opened first to the width of the flexible screen may correspond to a display format with the largest aspect ratio, and the heights of the other folding frames may be adapted to the heights of the adjacent folding frames, and when the adjacent folding frames are opened to support the corresponding flattened display screens, the ratio of the total height to the width of the flattened display screens may also be adapted to a display format. The different height dimensions of different folding frames may enable the display screen to be divided into a plurality of folding parts of different heights.

[0043] If the folding frame is provided with a reset torsion spring, a clutch mechanism can be configured to disconnect the transmission between the motor and the rotating shaft of the folding frame during folding and resetting, and drive the reset through the reset torsion spring.

[0044] Example 2, reference Figure 2 , Figure 2-1 , Figure 2-2 .

[0045] In this embodiment, the display screen of the vehicle-mounted ceiling foldable display device also adopts a flexible screen. In the main structure, the roof mounting structure 201 is the same as that in Example 1. The main structure is provided with two folding frames 231 and 232, which can be adjusted to two sizes of display screens. The flexible screen can be on the inside of the fold, i.e., an inner folding flexible screen, or the flexible screen can be on the outside of the fold, i.e., an outer folding flexible screen. The folding frames 231 and 232 are respectively provided with flexible screen connection structures, and the folding and opening of the folding frames can be manual or electric, and this structure can be the same as that in Example 1.

[0046] Example 3, reference Figure 3 , Figure 3-1 , Figure 3-2 .

[0047] The display screen of the vehicle-mounted ceiling-mounted foldable display device of this embodiment also adopts a flexible screen 302, which is a foldable screen that can be bent and flattened. The roof mounting structure 301 in the main structure is the same as that in the first embodiment.

[0048] The main structure is provided with multiple folding frames. This embodiment is a 3-fold, with 3 folding frames, respectively numbered 331, 332, 333. The 3 folding frames 331, 332, 333 are hinged in sequence so that the folding frames can be folded and opened, and the folding direction can be the "folding quilt" folding method shown in the figure of this embodiment, that is, continuous folding along a rotation direction. In this embodiment, the flexible screen is on the outside of the fold, that is, the outward folding flexible screen.

[0049] Among the multiple folding frames, the folding frame 331 at the head end is rotatably connected to the roof mounting structure 301. The folding and opening of the folding frame can be manually or electrically driven as in Example 1, or driven by an elastic mechanism when folding or opening. The vehicle-mounted ceiling foldable display device is provided with an electric drive device to electrically drive the folding frame to fold and / or open.

[0050] The rotating shaft of each folding frame may be connected to a motor to fold and open the folding frame, or the rotating shaft of the adjacent folding frame may be driven by a transmission belt to rotate, and the corresponding folding frame may be folded and opened. Thus, some of the multiple folding frames can be folded and some can be opened, and the display screen can be adjusted to different sizes. The occupation of the skylight area can be reduced exponentially. More preferably, the ratio of the sum of the flattened heights of the flexible screens corresponding to two adjacent folding frames or three adjacent folding frames to the width of the flexible screen may be adapted to a display format; or, it may be: according to the order of folding, the ratio of the flattened height of the flexible screen corresponding to the folding frame that is folded and opened first to the width of the flexible screen may correspond to a display format with the most disparate aspect ratio, and the height of the other folding frames may be adapted to the height of the adjacent folding frames, and when the adjacent folding frames are opened to support the corresponding flattened display screen, the ratio of the total height and width of the flattened display screen may also be adapted to a display format. The different height dimensions of different folding frames enable the display screen to be divided into multiple folding parts of different heights.

[0051] The folding frame 331 at the front end and the folding frame 333 at the rear end are respectively provided with flexible screen connection structures, and are connected to the flexible screen 302 , and can fold and flatten the flexible screen 302 , and support the flexible screen 302 .

[0052] If the folding frame is provided with a reset torsion spring, a clutch mechanism can be configured to disconnect the transmission between the motor and the rotating shaft of the folding frame during folding and resetting, and drive the reset through the reset torsion spring.

[0053] The folding frame 331 at the front end is set as a retractable mechanism for the flexible screen. The folding frame 331 at the front end is a retractable folding frame that can retract and adjust the flexible screen 302 to further finely adjust the display size of the display screen. That is, in this embodiment, the display screen support area corresponding to the folding frame 331 at the front end is variable, so that it can adapt to different display formats, and the retractable mechanism can also act as a sliding structure to adapt to the movement changes of the flexible screen caused by folding and flattening. In addition, the flexible screen retractable mechanism can also serve as a control mechanism when the folding frame is opened by controlling the timing and speed of releasing the flexible screen.

[0054] The flexible screen connection structure provided on the folding frame 333 at the rear end may be a fixed plate surface on the folding frame that can be fixed (e.g., bonded) to the flexible screen (i.e., the folding frame 331 at the head end in this embodiment adopts this structure), or a clamping structure, etc., or may be an axis connected to the flexible screen. Each folding frame may also be provided with a flexible screen support structure. The flexible screen support structure may be a plate, or may be composed of a plurality of strips or a plurality of sheets, or may be a mixture of the above-mentioned components.

[0055] In this embodiment, the retractable structure can adopt the following structure: the head end folding frame 331 can be composed of two parts: a rotating connecting frame 3311 and a sliding frame 3312. The rotating connecting frame 3311 is rotatably connected to the roof mounting structure 301, and the sliding frame 3312 is slidably connected to the rotating connecting frame 3311 in the telescopic direction. The sliding connection can be realized by a guide rail, and can be driven manually or by a motor. When driven by electricity, a screw nut pair can be connected between the rotating connecting frame 3311 and the sliding frame 3312, wherein the nut 3314 is connected to the sliding frame 3312, and the screw 3313 is connected to the motor 3315, and the motor 3315 is installed on the rotating connecting frame 3311, or a belt transmission mechanism or the like can be used to drive the telescopic movement. The sliding frame 3312 is also rotatably connected to the adjacent folding frame 332, and its structure can adopt the rotating connection structure in Example 1.

[0056] The retractable mechanism of the flexible screen 302 can utilize a rotating connecting frame 3311 and a sliding frame 3312. One end of the flexible screen 202 is a fixed end and the other end is a movable end, and is respectively connected to the rotating connecting frame 3311 and the sliding frame 3312. A reel 3316 is arranged on the rotating connecting frame 3311 (in this embodiment, it is for retractable adjustment in the up and down directions. Preferably, the reel 3316 is arranged at the upper end of the rotating connecting frame 2031, and the fixed end of the flexible screen 302 is connected to the reel 3316). The height of the display screen can be finely adjusted as the display screen mounting frame is extended and retracted, and the flattened area and aspect ratio of the display screen can be changed. A steering guide shaft can also be arranged in the rotating connecting frame 3311 or the sliding frame 3312. In this case, the reel is not necessarily arranged, and the two ends of the flexible screen can be respectively fixedly connected to the frame bodies of the rotating connecting frame 3311 and the sliding frame 3312. Reference numeral 3318 is a display screen housing fixedly connected to the rotating connecting frame. A support plate 3317 of the flexible screen may be provided on both the rotating connecting frame 3311 and the sliding frame 3312 .

[0057] Example 4, reference Figure 4 , Figure 4-1 , 4-2, 4-3.

[0058] The display screen of the vehicle-mounted ceiling-mounted foldable display device of this embodiment also adopts a flexible screen. The flexible screen 400 is a foldable screen that can be bent and flattened.

[0059] The main structure is provided with a roof mounting structure and a plurality of folding frames. This embodiment is 3-folding, with three folding frames, respectively numbered 431, 432, and 433. The three folding frames 431, 432, and 433 are hinged in sequence so that the folding frames can be folded and opened. The folding direction can be such an alternating inward folding and outward folding as shown in the drawings of this embodiment. The inward folding is that the flexible screen 400 is folded face to face like a book, and the outward folding is folded in the opposite direction. For example, considering the simplicity of the structure, it is better to alternate the inward folding and the outward folding, which can absorb the required length changes caused by the bending and simplify the hinge structure. The multiple folding frames can also be folded in a "folding quilt" manner, that is, folded continuously along a rotation direction, and the flexible screen 400 can be on the inside of the folding direction or on the outside of the folding.

[0060] The roof mounting structure is configured as a lockable movable structure, which includes a fixed frame 401 and a rotating frame 402. The fixed frame 401 is mounted on the roof structure of the automobile, and the rotating frame 402 is rotatably mounted on the fixed frame 401 through a rotating mechanism. The rotating mechanism can be manual or electrically driven, and a locking structure can be provided, such as protrusions and grooves located in different directions of the rotation direction. If an electrically driven mechanism is adopted, the locking can be achieved directly by using the stop of the driving motor 403 and the gears in the speed reduction mechanism 404. In this embodiment, a mounting bearing 405 for the rotating shaft 407 of the head end folding frame 431 is provided on the rotating frame 402. In this way, the display screen can be adjusted left and right to adapt to the position of the second or third row of passengers.

[0061] A decorative cover is arranged on the back of the folding frame. When the flexible screen is folded inward, the decorative cover arranged on the back of the folding frame at the folding bottom is suitable for the interior decoration of the car.

[0062] Among the multiple folding frames, the folding frame 431 at the head end is rotatably connected to the rotating frame 402 through a hinge, and the hinge includes the above-mentioned rotating shaft 407 and the mounting bearing 405. The hinge may also include a spring tube mounted on the rotating frame 402 to clamp the rotating shaft 407. This structure may also be applicable to adjacent folding frames. The folding frame 431 at the head end and the folding frame 433 at the tail end are respectively provided with a flexible screen connection structure, and the flexible screen 400 is connected to the flexible screen connection structure, so that the flexible screen 402 can be folded and flattened, and the flexible screen 402 can be supported. The flexible screen connection structure can be a fixed plate surface on the folding frame that can be fixed (such as bonded) to the flexible screen. The flexible screen connection structure can be a structure fixedly connected to the folding frame body, or a sliding mechanism slidably connected to the folding frame body, which can allow one end of the flexible screen to move forward and backward, and the sliding mechanism can be driven electrically. Each folding frame can also be provided with a flexible screen support structure. The flexible screen support structure can be a plate, or composed of multiple strips or multiple sheets, or a mixture of the above-mentioned components.

[0063] The folding and opening method of the folding frame can adopt the structure of embodiment 1 and have the same technical effect.

[0064] Example 5, reference Figure 5 , Figure 5-1 , 5-2, 5-3.

[0065] The display screen of the vehicle-mounted ceiling-mounted foldable display device of this embodiment also adopts a flexible screen. The flexible screen 500 is a foldable screen that can be bent and flattened.

[0066] The main structure is provided with a roof mounting structure and a plurality of folding frames. This embodiment is a 3-folding, with three folding frames, respectively numbered 531, 532, 533. The three folding frames 531, 532, 533 are hinged in sequence so that the folding frames can be folded and opened. The folding direction can be performed alternately as shown in the figure of this embodiment, such as the inner folding and the outer folding. The inner folding is the flexible screen 500 folded face to face like a book, and the outer folding is the folding in the opposite direction. Considering the simplicity of the structure, it is better to alternate the inner folding and the outer folding, which can absorb the required length changes caused by the bending and simplify the hinge structure. The multiple folding frames can also be folded in a "folding quilt" manner, that is, folded continuously along a rotation direction, and the flexible screen 500 can be on the inside of the folding direction or on the outside of the folding.

[0067] The roof mounting structure is configured as a lockable movable structure, which includes a fixed frame 501 and a rotating frame 502. The fixed frame 501 is mounted on the roof structure of the automobile, and the rotating frame 502 is rotatably mounted on the fixed frame 501 through a rotating mechanism. The rotating mechanism can be a structure as in Example 4, which is manually or electrically driven, and can be provided with a locking structure, such as protrusions and grooves located in different directions of the rotation direction. If an electric drive is adopted, the locking can be directly achieved by using the gears in the stop and deceleration mechanism of the driving motor. In this embodiment, the rotating frame 502 is provided with a mounting bearing for the rotating shaft of the head end folding frame 531. In this way, the display screen can be adjusted left and right to adapt to the position of the second or third row of passengers.

[0068] Among the multiple folding frames, the folding frame 531 at the head end is rotatably connected to the roof mounting structure 501. The folding and opening of the folding frame can be manually or electrically driven as in Example 1, or driven by an elastic mechanism when folding or opening. The vehicle-mounted ceiling foldable display device is provided with an electric drive device to electrically drive the folding frame to fold and / or open.

[0069] The rotating shaft of each folding frame may be connected to a motor to fold and open the folding frame, or the rotating shaft of the adjacent folding frame may be driven by a transmission belt to rotate, and the corresponding folding frame may be folded and opened. Thus, some of the multiple folding frames can be folded and some can be opened, and the display screen can be adjusted to different sizes. The occupation of the skylight area can be reduced exponentially. More preferably, the ratio of the sum of the flattened heights of the flexible screens corresponding to two adjacent folding frames or three adjacent folding frames to the width of the flexible screen may be adapted to a display format; or, it may be: according to the order of folding, the ratio of the flattened height of the flexible screen corresponding to the folding frame that is folded and opened first to the width of the flexible screen may correspond to a display format with the most disparate aspect ratio, and the height of the other folding frames may be adapted to the height of the adjacent folding frames, and when the adjacent folding frames are opened to support the corresponding flattened display screen, the ratio of the total height and width of the flattened display screen may also be adapted to a display format. The different height dimensions of different folding frames enable the display screen to be divided into multiple folding parts of different heights.

[0070] If the folding frame is provided with a reset torsion spring, a clutch mechanism can be configured to disconnect the transmission between the motor and the rotating shaft of the folding frame during folding and resetting, and drive the reset through the reset torsion spring.

[0071] The folding frame 531 at the front end and the folding frame 533 at the rear end are respectively provided with flexible screen connection structures, and the flexible screen 500 is connected to the flexible screen connection structure, so that the flexible screen 500 can be folded and flattened, and the flexible screen 500 is supported.

[0072] The front-end folding frame 531 is configured as a retractable mechanism for the flexible screen. The front-end folding frame 531 is a retractable folding frame that can retract and adjust the flexible screen 500, and further finely adjust the display size of the display screen. That is, in this embodiment, the display screen support area corresponding to the front-end folding frame 500 is variable, so that it can adapt to different display formats, and the retractable mechanism can also act as a sliding structure to adapt to the movement changes of the flexible screen caused by folding and flattening. In addition, the flexible screen retractable mechanism also serves as a control mechanism when the folding frame is opened by controlling the timing and speed of releasing the flexible screen.

[0073] The flexible screen connection structure provided on the folding frame 533 at the tail end may be a fixed plate surface on the folding frame that can be fixed (such as bonding) to the flexible screen (that is, the head end folding frame 531 adopts this structure in this embodiment), or a snap-on structure, etc., or it may be an axis connected to the flexible screen.

[0074] Each folding frame may also be provided with a flexible screen support structure, which may be a plate, or composed of a plurality of strips or a plurality of sheets, or a mixture of the above-mentioned components.

[0075] The implementation structure of the retractable and extendable mechanism can adopt the structure of Example 3.

[0076] It should be noted that the terms "including" and "having" and any variations thereof in the specification and claims of the utility model and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be an internal connection between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.

[0077] In the description of the present invention, it should be understood that the terms "one end", "the other end", "outside", "inside", "horizontal", "end", "length", "outer end", "left", "right" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present invention. The terms "first" and "second" are also used only for the simplicity of description, and do not indicate or imply relative importance.

[0078] Furthermore, in practicing the claims of the present invention, those skilled in the art may understand and affect variations to the disclosed embodiments by studying the drawings, disclosure, and appended claims. In addition, in the claims and the specification, words such as "comprises", "comprising", etc. do not exclude other elements or steps, and non-plural nouns do not exclude their plural forms.

Claims

1. A main structure, including a roof mounting structure, characterized in that: It also includes multiple folding frames, which are hinged in sequence to enable them to be folded and opened. The folding frame at the front end is rotatably connected to the roof mounting structure, and the folding frame at the front end and the folding frame at the rear end are respectively provided with flexible screen connection structures to support the flexible screen.

2. A main structure as claimed in claim 1, characterized in that A decorative cover is arranged on the back of the folding frame.

3. A main structure as claimed in claim 1, characterized in that Each folding frame is respectively provided with a flexible screen supporting structure.

4. A main structure as claimed in claim 1, characterized in that An electric drive device is also provided to drive the folding frame to fold and / or to drive the folding frame to open.

5. A main structure as claimed in claim 1, characterized in that The number of the plurality of folding frames is greater than or equal to 3, and some of the folding frames can be folded while some of the folding frames are opened.

6. A main structure as claimed in claim 5, characterized in that At least two of the plurality of folding frames are provided with their own electric drive devices so that some of the folding frames can be folded and some of the folding frames can be opened.

7. A main structure as claimed in claim 1, characterized in that The multiple folding frames have folding frames of different heights so that the display screen can be divided into multiple folding parts of different heights.

8. A main structure as claimed in claim 1, characterized in that At least one of the multiple folding frames is a retractable folding frame and is configured as a retractable mechanism for the flexible screen, so that the size of the display screen can be finely adjusted.

9. A main structure as claimed in claim 1, characterized in that The roof mounting structure is provided with a rotating device so that the folding frame can be rotated left and right to adjust the direction.

10. A vehicle-mounted ceiling-mounted foldable display device, characterized in that: The vehicle-mounted ceiling-mounted foldable display device is provided with a display screen and any one of the main structures of claims 1-9, wherein the display screen is a flexible screen; the flexible screen is connected to a flexible screen connecting structure, and is capable of folding and flattening the flexible screen and supporting the flexible screen.

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