Display screen rotating structure, display screen device and vehicle

Abstract

The utility model belongs to the technical field of vehicle display screen installation, and particularly relates to a display screen rotating structure, a display screen device and a vehicle. A display screen rotating structure comprises a linear transmission mechanism and a connecting rod transmission mechanism. The linear transmission mechanism comprises a worm and a meshing piece in meshing transmission with the worm. The connecting rod transmission mechanism is provided with a connecting rod input end and a connecting rod output end, the connecting rod input end is hinged to the meshing piece, and the connecting rod output end is suitable for being fixedly connected with the display screen; when the worm rotates, the meshing piece drives the input end of the connecting rod to linearly move back and forth in the preset direction, then the display screen is driven to rotate through the output end of the connecting rod, angle adjustment of the display screen is achieved, use requirements of different users are met, and user experience is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle display screen installation, and particularly relates to a display screen rotation structure, a display screen device and a vehicle. Background Art

[0002] With the continuous improvement of the entertainment and intelligence of vehicle functions, in-vehicle multimedia devices are becoming increasingly popular, and the demand for in-vehicle entertainment by rear passengers is gradually increasing. Therefore, some vehicles install a display screen on the rear side of the front seat so that the rear passengers can entertain through the display screen.

[0003] However, in related technology vehicles, the display screen is fixedly connected to the rear side of the front seat in an embedded manner, and the height and angle of the display screen are fixed, which is not convenient for different users to use, resulting in a poor user experience. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a display screen rotation structure, a display screen device and a vehicle for the problem that the height and angle of the display screen are fixed in related technology vehicles, resulting in a poor user experience.

[0005] To solve the above technical problem, on the one hand, an embodiment of the utility model provides a display screen rotation structure for driving the display screen to rotate, including a linear transmission mechanism and a link transmission mechanism. The linear transmission mechanism includes a worm and an engaging member meshing with the worm for transmission;

[0006] The link transmission mechanism has a link input end and a link output end. The link input end is hinged to the engaging member, and the link output end is adapted to be fixedly connected to the display screen;

[0007] When the worm rotates, the engaging member drives the link input end to reciprocate linearly in a preset direction, and then drives the display screen to rotate through the link output end.

[0008] Optionally, the hinge axis of the link input end and the engaging member is parallel to the rotation axis of the link output end, and the hinge axis of the link input end and the engaging member is perpendicular to the preset direction.

[0009] Optionally, the link transmission mechanism includes a first link and a second link. One end of the first link is hinged to the engaging member, the other end of the first link is hinged to one end of the second link, and the other end of the second link is adapted to be fixedly connected to the display screen;

[0010] One end of the first link constitutes the link input end, and the other end of the second link constitutes the link output end.

[0011] Optionally, the display screen rotation structure further includes a mounting base, and a guiding structure is provided between the mounting base and the engaging member, so that the engaging member reciprocates linearly along the preset direction when the worm rotates.

[0012] Optionally, the guiding structure includes a slide rail and a slide groove extending along the preset direction. One of the slide rail and the slide groove is provided on the mounting base, and the other of the slide rail and the slide groove is provided on the engaging member.

[0013] Optionally, the engaging member is provided with engaging teeth that mesh and drive with the worm, and a slide groove or a slide rail is provided on the side of the engaging member opposite to the engaging teeth.

[0014] Optionally, the engaging teeth are provided on the top surface of the engaging member, and the slide groove is provided on the bottom surface of the engaging member. In the height direction of the engaging member, the hinge structure of the link input end and the engaging member is located between the engaging teeth and the slide groove.

[0015] Optionally, the display screen rotation structure further includes a motor, the worm is connected to the output shaft of the motor, and the motor is used to drive the worm to rotate.

[0016] Optionally, the display screen rotation structure further includes a bracket, the bracket is fixed to the link output end, and the bracket is suitable for fixing the display screen.

[0017] Optionally, the bracket includes a bracket body and a rotating shaft. The rotating shaft extends along the rotation axis of the link output end. The bracket body is suitable for fixing the display screen. The rotating shaft is fixed on the bracket body, and one end of the rotating shaft is fixed to the link output end.

[0018] Optionally, in the axial direction of the rotating shaft, the linear transmission mechanism is located between the link output end and the bracket body.

[0019] Optionally, the rotating shaft includes a bracket connecting shaft, an angle fixer and a damping fixing shaft. The bracket connecting shaft and the damping fixing shaft are coaxially arranged at intervals. The angle fixer is arranged between the bracket connecting shaft and the damping fixing shaft. The bracket connecting shaft is fixed on the bracket body, and the damping fixing shaft is fixed to the link output end;

[0020] The bracket connecting shaft and the damping fixing shaft are drivingly connected through the angle fixer. When the worm stops rotating, the damping fixing shaft can limit the rotation of the bracket connecting shaft.

[0021] Optionally, the angle fixer is a damper, which includes a first connecting plate, a second connecting plate and a plurality of elastic washers, wherein the first connecting plate is fixed to the bracket connecting shaft, the second connecting plate is fixed to the damping fixing shaft, and in the axial direction of the rotating shaft, the plurality of elastic washers are compressed between the first connecting plate and the second connecting plate.

[0022] Optionally, the bracket body includes a display bracket and a rotating bracket, the rotating bracket has a mounting slot with an open top, the bottom end of the display bracket extends into the mounting slot and is fixed to the rotating shaft, and the part of the display bracket extending outside the mounting slot is suitable for fixing the display screen.

[0023] In this display device, an engaging member meshes with a worm and is hingedly connected to the input end of a connecting rod transmission mechanism. The display screen is fixedly connected to the output end of the connecting rod. As the worm rotates, the engaging member reciprocates linearly in a predetermined direction, pushing or pulling the input end of the connecting rod. This, in turn, causes the output end of the connecting rod to swing, causing the display screen to rotate and adjust its angle. This allows for tailored viewing experiences, meeting the needs of different users and enhancing the user experience.

[0024] On the other hand, an embodiment of the present invention provides a display screen device, including a display screen and the above-mentioned display screen rotation structure.

[0025] On the other hand, an embodiment of the present invention provides a vehicle, comprising the above-mentioned display screen rotation structure or the above-mentioned display screen device.

[0026] Optionally, the display screen rotation structure is installed on the rear side of the headrest of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a structural diagram of a display screen device provided by an embodiment of the present utility model;

[0028] Figure 2 yes Figure 1 Schematic diagram when the display is in a vertical position;

[0029] Figure 3 yes Figure 1 Schematic diagram when the display is rotated 30°;

[0030] Figure 4 yes Figure 1 The main view;

[0031] Figure 5 yes Figure 4 sectional view of ;

[0032] Figure 6 yes Figure 1 Exploded diagram;

[0033] Figure 7 is Figure 6 a schematic structural view of the mounting base in

[0034] Figure 8 is Figure 6 an exploded view of the rotating shaft and the second connecting rod in

[0035] Figure 9 is Figure 8 the front view of the damper in

[0036] Figure 10 is Figure 9 the axial sectional view of

[0037] The reference numerals in the specification are as follows:

[0038] 1. Display screen; 2. Motor; 3. Linear transmission mechanism; 31. Worm; 32. Engaging member; 4. Link transmission mechanism; 41. First connecting rod; 42. Second connecting rod; 5. Bracket; 51. Rotating shaft; 511. Bracket connecting shaft; 512. Damper; 5121. First connecting disk; 5122. Second connecting disk; 5123. Elastic washer; 513. Damper fixing shaft; 52. Rotating bracket; 53. Display screen bracket; 6. Housing; 61. Housing main body; 62. Cover body; 7. Mounting base; 71. Bottom plate; 72. Vertical plate; 73. Slide rail; 8. Fixed housing; 9. Motor fixing bracket. Specific embodiments

[0039] In order to make the technical problems, technical solutions and beneficial effects solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0040] As Figure 1 and Figure 2 shown, an embodiment of the present utility model provides a display screen device, including a display screen 1 and a display screen rotating structure, and the display screen rotating structure is used to drive the display screen 1 to rotate. The display screen rotating mechanism includes a linear transmission mechanism 3 and a link transmission mechanism 4.

[0041] The linear transmission mechanism 3 includes a worm 31 and an engaging member 32 that meshes with the worm 31 for transmission.

[0042] The link transmission mechanism 4 has a link input end and a link output end. The link input end is hinged to the engaging member 32, and the link output end is fixedly connected to the display screen 1.

[0043] When the worm 31 rotates, the engaging member 32 drives the link input end to reciprocate linearly in a preset direction, and then drives the display screen 1 to rotate through the link output end.

[0044] Specifically, when the angle of the display screen 1 needs to be adjusted, the worm 31 is controlled to rotate around its axis, and the engaging member 32 meshing with the worm 31 moves linearly in a preset direction. The engaging member 32 pushes or pulls the input end of the connecting rod, causing the output end of the connecting rod to swing, and the display screen 1 fixedly connected to the output end of the connecting rod rotates, so as to realize the angle adjustment of the display screen 1.

[0045] Figure 1 The maximum rotation angle of the display screen 1 in the shown display screen device is 30°. Among them, Figure 2 Figure 8 is a side view of the display screen device when the display screen 1 is in a vertical state, Figure 3 Figure 9 is a side view of the display screen device when the display screen 1 rotates 30°. It should be noted that the maximum rotation angle of the display screen 1 can be adjusted by adjusting the linear movement stroke of the engaging member 32 or by adjusting the length of the connecting rod in the connecting rod transmission mechanism 4.

[0046] Among them, the display screen rotation structure utilizes the self-locking characteristic of the worm gear and the engaging member 32. After the display screen 1 rotates to a certain angle and stops working, due to the certain weight of the display screen 1, the display screen 1 has a tendency to continue to rotate. However, due to the self-locking of the worm gear and the engaging member 32, the display screen 1 cannot drive the engaging member 32 to move through the connecting rod transmission mechanism 4. Therefore, the display screen 1 can be kept at a fixed angle without the need to separately develop a self-locking mechanism for cooperation, saving a large amount of space and making the display screen rotation structure more compact and efficient.

[0047] In addition, due to the characteristics of the large transmission ratio and stable movement of the worm gear and the engaging member 32, the cooperation of the worm 31 and the engaging member 32 is used for deceleration, so that the rotation speed of the display screen 1 is relatively small, and thus the angle of the display screen 1 can be adjusted more finely.

[0048] The connecting rod transmission mechanism 4 is composed of connecting rods, with low cost and light weight. Moreover, the connecting rod transmission mechanism 4 is a mechanism that makes planar motion and occupies less space, making the display screen rotation structure more suitable for being arranged in a narrow space.

[0049] It should be noted that due to different usage scenarios of the display screen 1 and different requirements for the rotation direction of the display screen 1, the overall installation angle of the display screen rotation structure will change accordingly. For example, when the required function of the display screen 1 is to rotate up and down, after the display screen rotation structure is installed in place, the rotation axis of the output end of the connecting rod should extend in the left-right direction.

[0050] In the display device of the present utility model, the engaging member 32 meshes with the worm 31 for transmission and is hinged to the link input end of the link transmission mechanism 4, and the display screen 1 is fixedly connected to the link output end of the link transmission mechanism 4. When the worm 31 rotates, the engaging member 32 linearly reciprocates in a preset direction to push or pull the link input end, thereby driving the link output end to swing, causing the display screen 1 to rotate, so as to realize the angle adjustment of the display screen 1, meet the usage requirements of different users, and improve the user experience.

[0051] In one embodiment, as Figure 4 and Figure 5 shown, the hinge axis of the link input end and the engaging member 32 is parallel to the rotation axis of the link output end, and the hinge axis of the link input end and the engaging member 32 is perpendicular to the preset direction, so that the planes where the movement trajectories of the link input end and the link output end are located are both parallel to the movement direction of the engaging member 32. Therefore, when the force of the engaging member 32 on the link input end is transmitted in the link transmission mechanism 4, no component force in other directions is generated, making the link transmission mechanism 4 move more smoothly, and thus the angle adjustment of the display screen 1 is more stable.

[0052] In one embodiment, the link transmission mechanism 4 includes a first link 41 and a second link 42. One end of the first link 41 is hinged to the engaging member 32, the other end of the first link 41 is hinged to one end of the second link 42, and the other end of the second link 42 is fixedly connected to the display screen 1. One end of the first link 41 constitutes the link input end, and the other end of the second link 42 constitutes the link output end.

[0053] The link transmission mechanism 4 composed of two links has less conversion movement, so the movement stability of the link transmission mechanism 4 is higher, to further improve the stability when the bracket 5 rotates.

[0054] In one embodiment, it further includes a hinge shaft. A through first hinge hole is provided on the engaging member 32, and a through second hinge hole is provided at the link input end. The hinge shaft is hinged in the first hinge hole and the second hinge hole, so that the link input end rotates around the hinge shaft.

[0055] In one embodiment, the hinge shaft is a pin, and a snap ring is installed at one end of the pin that passes through the first hinge hole and passes out of the second hinge hole.

[0056] In one embodiment, the display screen rotation structure further includes a mounting base 7. A guiding structure is provided between the mounting base 7 and the engaging member 32, so that the engaging member 32 linearly reciprocates in a preset direction when the worm 31 rotates.

[0057] In one embodiment, the guiding structure includes a slide rail 73 extending along a preset direction and a chute. One of the slide rail 73 and the chute is disposed on the mounting base 7, and the other one of the slide rail 73 and the chute is disposed on the engaging member 32. The structures of the slide rail 73 and the chute are simple, facilitating installation and machining.

[0058] In one embodiment, the engaging member 32 is provided with engaging teeth that mesh with and drive the worm 31, and a chute or a slide rail 73 is disposed on a side of the engaging member 32 opposite to the engaging teeth. When the engaging teeth mesh with and drive the worm 31, the force exerted by the worm 31 on the engaging member 32 can prevent the slide rail 73 from separating from the chute, enabling the engaging member 32 to be slidably mounted on the mounting base 7 more reliably.

[0059] In one embodiment, as Figure 5 shown, the engaging teeth are disposed on the top surface of the engaging member 32, and the chute is disposed on the bottom surface of the engaging member 32. In the height direction of the engaging member 32, the hinged structure of the connecting rod input end and the engaging member 32 is located between the engaging teeth and the chute, such that the hinged structure of the connecting rod input end and the engaging member 32, the engaging teeth, and the chute are staggeredly arranged in the height direction of the engaging member 32, which is beneficial to avoiding interference between the hinged structure and the worm 31 and the slide rail 73 when the engaging member 32 drives the connecting rod input end to move.

[0060] In one embodiment, both ends of the worm 31 are rotatably mounted on the mounting base 7.

[0061] In one embodiment, as Figure 7 shown, the mounting base 7 includes a bottom plate 71 and two vertical plates 72. The two vertical plates 72 are arranged at intervals along the linear movement direction of the engaging member 32. The vertical plates 72 are perpendicular to the bottom plate 71 and connected to the bottom plate 71. The top ends of the vertical plates 72 are provided with semi-circular mounting holes, and both ends of the worm 31 are respectively rotatably mounted in the mounting holes.

[0062] In one embodiment, as Figure 7 shown, the bottom plate 71 is provided with a groove with an upward opening, and the slide rail 73 is connected to the bottom wall of the groove. The engaging member 32 is mounted in the groove. The engaging member 32 has a first limit position and a second limit position. In the first limit position, the engaging member 32 abuts against one side wall of the groove along the above-mentioned preset direction, and in the second limit position, the engaging member 32 abuts against the other side wall of the groove along the above-mentioned preset direction.

[0063] In one embodiment, there are two slide rails 73, and the two slide rails 73 are arranged in parallel at intervals along a direction perpendicular to the extending direction of the slide rail 73.

[0064] In one embodiment, it further includes a fixed housing 8, and the fixed housing 8 covers the linear transmission mechanism 3 and is fixedly connected to the mounting base 7.

[0065] In one embodiment, the display screen rotation structure further includes a motor 2, and the worm 3 is connected to the output shaft of the motor 2. The motor 2 is used to drive the worm 3 to rotate so as to electrically adjust the angle of the display screen 1 by using the motor 2, saving manpower.

[0066] In one embodiment, as Figure 4 shown, the display screen rotation structure further includes a bracket 5. The bracket 5 is fixed to the output end of the connecting rod, and the bracket 5 fixes the display screen 1.

[0067] In one embodiment, as Figure 4 shown, the bracket 5 includes a bracket main body and a rotating shaft 51. The rotating shaft 51 extends along the rotation axis of the output end of the connecting rod. The rotating shaft 51 is fixed on the bracket main body. One end of the rotating shaft 51 is fixed to the output end of the connecting rod, and the display screen 1 is fixed on the bracket main body.

[0068] In one embodiment, in the axial direction of the rotating shaft 51, the linear transmission mechanism 3 is located between the output end of the connecting rod and the bracket main body, so as to utilize the space between the output end of the connecting rod and the bracket main body to arrange the linear transmission mechanism 3, making the arrangement of parts more compact and reducing the space occupied by the display screen rotation structure.

[0069] In one embodiment, the rotating shaft 51 is formed by machining an anti-rotation plane on the outer peripheral surface of a cylinder. Assembly holes penetrating in the direction of the rotation axis of the output end of the connecting rod are provided on both the rotating bracket 52 and the display screen bracket 53. The cross-sectional shape of the assembly hole is the same as the cross-sectional shape of the rotating shaft 51. The rotating shaft 51 passes through the assembly hole and can be circumferentially blocked and matched with the bracket main body, so that when the rotating shaft 51 rotates, the bracket 5 and the display screen bracket 53 rotate around the axis of the rotating shaft 51. Among them, a snap ring is installed at the end of the rotating shaft 51 passing through the assembly hole to prevent the rotating shaft 51 from disengaging from the assembly hole.

[0070] In one embodiment, a clamping hole is provided on the output end of the connecting rod, and the end of the rotating shaft 51 is clamped in the clamping hole to be circumferentially blocked and matched with the output end of the connecting rod, and a snap ring is installed at the end of the rotating shaft 51 passing through the clamping hole.

[0071] In one embodiment, as Figure 6 and Figure 8 shown, the rotating shaft 51 includes a bracket connecting shaft 511, an angle fixer and a damping fixed shaft 513. The bracket connecting shaft 511 and the damping fixed shaft 513 are coaxially arranged at intervals. The angle fixer is arranged between the bracket connecting shaft 511 and the damping fixed shaft 513. The bracket connecting shaft 511 is fixed on the bracket main body, and one end of the damping fixed shaft 513 away from the bracket connecting shaft 511 is fixed to the output end of the connecting rod.

[0072] The bracket connecting shaft 511 and the damping fixed shaft 513 are drivingly connected through an angle fixator. When the worm 31 stops rotating, the angle fixator can limit the rotation of the bracket connecting shaft 511, thereby limiting the rotation of the bracket body to lock the display screen 1.

[0073] Specifically, the display screen device has an electric mode and a manual mode. In the electric mode, the bracket connecting shaft 511 and the damping fixed shaft 513 are drivingly connected through an angle fixator. The motor 2 drives the linear transmission mechanism 3 to move, so as to drive the damping fixed shaft 513 to rotate through the link transmission mechanism 4, and then drive the bracket connecting shaft 511 to rotate through the angle fixator, so that the display screen 1 fixed on the bracket body rotates, and the worm 31 and the engaging member 32 are self-locked.

[0074] In the manual mode, when the upper end of the display screen 1 is manually pushed, the bracket connecting shaft 511 rotates with the bracket body. After the display screen 1 rotates a preset angle, the pushing force is withdrawn. Since the bracket connecting shaft 511 and the damping fixed shaft 513 are drivingly connected through an angle fixator and the worm 31 and the engaging member 32 are self-locked, the damping fixed shaft 513 can limit the rotation of the bracket connecting shaft 511, so that the display screen 1 can be held at this angle, realizing self-locking in the manual mode.

[0075] It should be noted that the torque for manually rotating the bracket connecting shaft 511 is greater than the torque for the motor 2 to drive the bracket 5.

[0076] In an embodiment, as Figure 9 and Figure 10 [[ID=,16]]shown, the angle fixator is a damper 512. The damper 512 includes a first connection disk 5121, a second connection disk 5122, and a plurality of elastic washers 5123. The first connection disk 5121 is fixed to the bracket connecting shaft 511, the second connection disk 5122 is fixed to the damping fixed shaft 513, and on the rotation axis of the output end of the link, a plurality of elastic washers 5123 are compressed between the first connection disk 5121 and the second connection disk 5122.

[0077] In the manual mode, since the worm 31 and the engaging member 32 are engaged, the damping fixed shaft 513 cannot rotate. When the display screen 1 is manually pushed to rotate, the elastic washers 5123 rotate relative to the damping fixed shaft 513. When the pushing force disappears, the friction between the elastic washers 5123 and the friction between the elastic washers 5123 and the first connection disk 5121 prevent the bracket connecting shaft 511 from rotating in the reverse direction to realize self-locking of the bracket connecting shaft 511, so that the display screen 1 can be maintained at this angle.

[0078] In one embodiment, the second connection disk 5122 includes a columnar connection body and a disk body connected to one axial end of the connection body. An annular groove is provided on the outer peripheral surface of the connection body. The first connection disk 5121 and a plurality of elastic washers 5123 are installed in the annular groove. The first connection disk 5121 is fixed to the bracket connection shaft 511, and the elastic washers 5123 are compressed between the side wall of the annular groove and the first connection disk 5121.

[0079] In one embodiment, a plurality of threaded holes are provided on the disk body at intervals in the circumferential direction. Through holes are provided on the damping fixing shaft 513. Each screw passes through the through hole and is threadedly connected to the corresponding threaded hole to realize the fixed connection between the second connection disk 5122 and the damping fixing shaft 513.

[0080] In one embodiment, a fitting hole extending along its axial direction is provided at the end of the bracket connection shaft 511 close to the damping fixing shaft 513, and the other end of the connection body penetrates into the fitting hole.

[0081] In one embodiment, as Figure 4 and Figure 6 shown, a plurality of threaded holes are provided at intervals in the circumferential direction at the end of the bracket connection shaft 511 close to the damping fixing shaft 513. Through holes are provided on the first connection disk 5121. Bolts pass through the through holes and are threadedly connected to the threaded holes to realize the fixed connection between the first connection disk 5121 and the bracket connection shaft 511.

[0082] In one embodiment, the bracket body includes a display screen bracket 53 and a rotating bracket 52. The rotating bracket 52 has an installation groove with an open top end. The bottom end of the display screen bracket 53 extends into the installation groove and is fixed to the rotating shaft 51. The part of the display screen bracket 53 extending out of the installation groove fixes the display screen 1.

[0083] In one embodiment, the display screen 1 is fixed to the display screen bracket 53 by a pin.

[0084] In one embodiment, the display screen device further includes a housing 6. The housing 6 includes a housing main body 61 and a cover body 62 assembled together, so as to form an installation space with an upward opening between the inner wall of the housing main body 61 and the cover body 62. The display screen rotating structure is installed in this installation space, but it is necessary to ensure that the part of the rotating bracket 52 connected to the display screen bracket 53 is exposed outwards through the opening of the installation space, so as to hide the display screen rotating structure in the housing 6 as much as possible and improve the aesthetics of the display screen device. Usually, a quick insertion structure is provided between the rotating bracket 52 and the housing 6, so that the rotating bracket 52 can be quickly inserted and installed in the housing 6.

[0085] In one embodiment, the motor 2 is fixed in the housing 6 by a motor fixing bracket 9.

[0086] In other embodiments, there may be a non-zero angle between the hinge axis of the connecting rod input end and the engaging member 32 and the rotation axis of the connecting rod output end, such as 30°, 60°, etc. The angle between the hinge axis of the connecting rod input end and the engaging member 32 and the preset direction can be adjusted as needed, such as 30°, 60°, etc.

[0087] In other embodiments, the number of connecting rods in the connecting rod transmission mechanism 4 can be changed. For example, when a third connecting rod is added, one end of the third connecting rod is hinged to the other end of the second connecting rod 42 around a fourth rotation axis, and the bracket 5 is fixed to the other end of the third connecting rod. Since the number of connecting rods increases, the conversion motion of the connecting rod transmission mechanism 4 increases. To ensure the reliability of the rotation of the display screen 1, a limiting structure needs to be added. The limiting structure is used to limit the extreme positions of the swinging motion of the second connecting rod 42.

[0088] In other embodiments, when the connecting rod input end and the engaging member 32 are hinged through a hinge shaft, a guiding structure can be provided between the hinge shaft and the mounting seat 7. Of course, the engaging member 32 can also be guided by the part of the vehicle where the display screen device is installed, so that the engaging member 32 moves linearly back and forth along a preset direction.

[0089] In other embodiments, the chute can be provided on the mounting seat 7, and the slide rail 73 can be provided on the engaging member 32.

[0090] In other embodiments, the chute and the engaging teeth can be provided on adjacent sides of the engaging member 32.

[0091] In other embodiments, the bracket 5 can only include a bracket main body, and the bracket main body is directly fixed to the connecting rod output end.

[0092] In other embodiments, the angle fixator can be a corrugated spring piece. The corrugated spring piece is fixed on the end face of the bracket connecting shaft 511 close to the damping fixing shaft 513. A protruding portion protruding toward one side in the thickness direction is provided on the corrugated spring piece. The protruding portion is pressed between the adjacent end faces of the bracket connecting shaft 511 and the damping fixing shaft 513, and a groove is provided on the end face of the damping fixing shaft 513. When the bracket connecting shaft 511 is manually rotated, the corrugated spring piece rotates a preset angle along with the bracket connecting shaft 511, and the protruding portion on the corrugated spring piece is stuck in the groove, so that the corrugated spring piece and the damping fixing shaft 513 are circumferentially blocked, so as to prevent the bracket connecting shaft 511 from rotating after the driving force is withdrawn, so as to realize the locking of the display screen 1. When it is necessary to release the circumferential block, increase the acting force for pushing the display screen 1, so that the torque of the bracket connecting shaft 511 increases, and the protruding portion disengages from the groove.

[0093] In addition, an embodiment of the present invention provides a display screen rotation structure, and its structure is the same as that of the display screen rotation structure in any of the above embodiments, and will not be described in detail here.

[0094] In addition, an embodiment of the present utility model provides a vehicle, including the display device or the display rotation structure in any of the above embodiments.

[0095] In one embodiment, the display screen 1 rotation device is installed at the rear side of the headrest of the vehicle, and the display screen 1 is used as a headrest screen.

[0096] In one embodiment, the rotation axis of the output end of the connecting rod extends along the left - right direction of the vehicle, and the display screen 1 can rotate up and down.

[0097] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A display screen rotating structure for driving a display screen (1) to rotate, characterized in that, It includes a linear transmission mechanism (3) and a connecting rod transmission mechanism (4). The linear transmission mechanism (3) includes a worm (31) and an engaging member (32) that meshes with and drives the worm (31). The connecting rod transmission mechanism (4) has a connecting rod input end and a connecting rod output end. The connecting rod input end is hinged to the engaging member (32), and the connecting rod output end is adapted to be fixedly connected to the display screen (1). When the worm (31) rotates, the engaging member (32) drives the connecting rod input end to reciprocate linearly in a preset direction, and then drives the display screen (1) to rotate through the connecting rod output end.

2. The display screen rotation structure according to claim 1, wherein The hinge axis of the connecting rod input end and the engaging member (32) is parallel to the rotation axis of the connecting rod output end, and the hinge axis of the connecting rod input end and the engaging member (32) is perpendicular to the preset direction.

3. The display screen rotation structure according to claim 1, wherein The connecting rod transmission mechanism (4) includes a first connecting rod (41) and a second connecting rod (42). One end of the first connecting rod (41) is hinged to the engaging member (32), the other end of the first connecting rod (41) is hinged to one end of the second connecting rod (42), and the other end of the second connecting rod (42) is adapted to be fixedly connected to the display screen (1). One end of the first connecting rod (41) constitutes the connecting rod input end, and the other end of the second connecting rod (42) constitutes the connecting rod output end.

4. The display screen rotation structure according to claim 1, wherein The display screen rotation structure further includes a mounting seat (7). A guiding structure is provided between the mounting seat (7) and the engaging member (32) to enable the engaging member (32) to reciprocate linearly in the preset direction when the worm (31) rotates.

5. The display screen rotation structure according to claim 4, wherein The guiding structure includes a slide rail (73) extending along the preset direction and a chute. One of the slide rail (73) and the chute is provided on the mounting seat (7), and the other of the slide rail (73) and the chute is provided on the engaging member (32).

6. The display screen rotation structure according to claim 5, wherein, The engaging member (32) is provided with engaging teeth that mesh with and drive the worm (31). The side of the engaging member (32) opposite to the engaging teeth is provided with the chute or the slide rail (73).

7. The display screen rotation structure according to claim 6, characterized in that, The engaging teeth are provided on the top surface of the engaging member (32), and the chute is provided on the bottom surface of the engaging member (32). In the height direction of the engaging member (32), the hinge structure of the connecting rod input end and the engaging member (32) is located between the engaging teeth and the chute.

8. The display screen rotation structure according to claim 1, characterized in that, The display screen rotation structure further includes a motor (2). The worm (3) is connected to the output shaft of the motor (2), and the motor (2) is used to drive the worm (3) to rotate.

9. The display screen rotation structure according to any one of claims 1 to 8, characterized in that The display screen rotation structure further includes a bracket (5). The bracket (5) is fixed to the connecting rod output end, and the bracket (5) is adapted to fix the display screen (1).

10. The display screen rotation structure according to claim 9, wherein, The bracket (5) includes a bracket main body and a rotating shaft (51). The rotating shaft (51) extends along the rotation axis of the connecting rod output end. The bracket main body is adapted to fix the display screen (1). The rotating shaft (51) is fixed on the bracket main body, and one end of the rotating shaft (51) is fixed to the connecting rod output end.

11. The display screen rotation structure according to claim 10, characterized in that, Axially of the rotating shaft (51), the linear transmission mechanism (3) is located between the connecting rod output end and the bracket body.

12. The display screen rotation structure according to claim 10, characterized in that The rotating shaft (51) includes a bracket connecting shaft (511), an angle fixator, and a damping fixed shaft (513). The bracket connecting shaft (511) and the damping fixed shaft (513) are arranged coaxially and at intervals. The angle fixator is arranged between the bracket connecting shaft (511) and the damping fixed shaft (513). The bracket connecting shaft (511) is fixed to the bracket body, and the damping fixed shaft (513) is fixed to the connecting rod output end; The bracket connecting shaft (511) and the damping fixed shaft (513) are drivingly connected through the angle fixator. When the worm (31) stops rotating, the damping fixed shaft (513) can limit the rotation of the bracket connecting shaft (511).

13. The display screen rotation structure according to claim 12, wherein The angle fixator is a damper (512). The damper (512) includes a first connecting disk (5121), a second connecting disk (5122), and a plurality of elastic washers (5123). The first connecting disk (5121) is fixed to the bracket connecting shaft (511), the second connecting disk (5122) is fixed to the damping fixed shaft (513), and axially of the rotating shaft (51), the plurality of elastic washers (5123) are compressed between the first connecting disk (5121) and the second connecting disk (5122).

14. The display screen rotation structure according to claim 10, wherein, The bracket body includes a display screen bracket (53) and a rotating bracket (52). The rotating bracket (52) has a mounting groove with an open top end. The bottom end of the display screen bracket (53) extends into the mounting groove and is fixed to the rotating shaft (51). The part of the display screen bracket (53) extending out of the mounting groove is adapted to fix the display screen (1).

15. A display device, characterized in that, Comprising a display screen (1) and the display screen rotating structure according to any one of claims 1 to 14.

16. A vehicle, characterized in that, Comprising the display screen rotating structure according to any one of claims 1 to 14 or the display screen device according to claim 15.

17. The vehicle according to claim 16, characterized in that, The display screen rotating structure is installed at the rear side of the headrest of the vehicle.

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