Vehicle-mounted back-row display screen turnover device

Abstract

The utility model relates to a vehicle-mounted back-row display screen turnover device which comprises an installation support and a turnover mechanism controlling the installation support to turn over, the installation support comprises a rotating shaft and a load end connected with the rotating shaft and used for installing a display screen, and the periphery of the rotating shaft is sleeved with a damping friction sleeve. A damping friction sleeve is arranged on the rotating shaft, a plurality of damping adjusting gaskets are arranged on the damping friction sleeve in the axial direction of the damping friction sleeve, the end, away from the damping friction sleeve, of the rotating shaft is sleeved with a sector gear, the turnover mechanism comprises a driving part and a gear assembly, the output end of the driving part is connected with a worm, and the worm is connected with a motor. The worm is in transmission connection with the sector gear through the gear assembly. The turnover mechanism is arranged to be matched with the sector gear on the rotating shaft, turnover of the display screen is achieved, meanwhile, the damping friction sleeve and the damping adjusting gasket are arranged on the rotating shaft, it is ensured that the rotating shaft can rotate stably and slowly, and therefore the situation that the display screen is turned over too fast or too violently, and discomfort is brought to passengers is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of display screen flipping, and in particular to a vehicle-mounted rear display screen flipping device. Background Art

[0002] With the rapid development of the automotive industry and consumers' increasing demand for interior comfort, rear-seat displays have become an essential component of modern car entertainment systems. They not only provide passengers with a rich audio-visual entertainment experience, but also become a key element of vehicle interior decoration.

[0003] To enhance the passenger experience, existing in-vehicle rear-seat displays are typically equipped with a flip mechanism. However, existing flip mechanisms lack an effective damping structure, causing the display to flip too quickly or too violently, causing discomfort to passengers. Utility Model Content

[0004] The purpose of the utility model is to provide a vehicle-mounted rear display screen flipping device, which realizes the flipping of the display screen by setting a flipping mechanism and cooperating with the fan gear on the rotating shaft. At the same time, a damping friction sleeve and a damping adjustment gasket are set on the rotating shaft to ensure that the rotating shaft can rotate smoothly and slowly, thereby avoiding the display screen from flipping too quickly or too violently, causing discomfort to passengers.

[0005] A vehicle-mounted rear display screen flipping device includes a mounting bracket and a flipping mechanism for controlling the flipping of the mounting bracket. The mounting bracket includes a rotating shaft and a load end connected to the rotating shaft for mounting a display screen. The device is characterized in that a damping friction sleeve is provided on the outer peripheral sleeve of the rotating shaft, and a plurality of damping adjustment gaskets are provided on the damping friction sleeve. The damping adjustment gaskets are arranged along the axial direction of the damping friction sleeve. A sector gear is provided on the end of the rotating shaft away from the damping friction sleeve. The flipping mechanism includes a driving member and a gear assembly. The output end of the driving member is connected to a worm, and the worm is transmission-connected to the sector gear through the gear assembly.

[0006] In the above technical solution, when the display screen needs to be flipped, the drive element activates, causing the worm gear connected to its output end to rotate. A gear assembly meshing with the worm gear transmits power to the sector gear. The sector gear is fixedly connected to the rotating shaft, so when the worm gear rotates, the sector gear drives the rotating shaft with it. As the rotating shaft rotates, the display screen mounted on the load end also flips to the desired angle. When the target angle is reached, the drive element stops, and the transmission of the worm gear and gear assembly also stops, and the display screen remains in its current position for passengers to view. A damping friction sleeve is mounted on the outer periphery of the rotating shaft. The damping adjustment shims on the sleeve provide a certain amount of frictional resistance. This resistance ensures smooth and slow movement of the display screen during flipping, preventing sudden or excessive flipping. Furthermore, the user can adjust the damping during flipping by adding or reducing the number of damping adjustment shims according to actual needs. The utility model realizes the flipping of the display screen by arranging a flipping mechanism, which cooperates with the fan-shaped gear on the rotating shaft. At the same time, a damping friction sleeve and a damping adjustment gasket are arranged on the rotating shaft to ensure that the rotating shaft can rotate smoothly and slowly, thereby avoiding the display screen from flipping too quickly or too violently, causing discomfort to passengers.

[0007] Furthermore, the gear assembly includes a first gear set, a second gear set and a third gear set that are meshed in sequence, the first gear set is meshed and connected to the worm, and the third gear set is meshed and connected to the sector gear.

[0008] In the above technical solution, when the worm rotates, it drives the first gear set to rotate. The rotation of the first gear set is then transmitted to the second gear set. The rotation of the second gear set is then transmitted to the third gear set. Finally, the rotation of the third gear set drives the sector gear to perform a specific movement.

[0009] Furthermore, the first gear set includes a first gear and a second gear coaxially connected to the first gear, and the first gear is meshed with the worm.

[0010] In the above technical solution, the first gear and the worm are meshed together through the interaction between the first gear's teeth and the worm's helical grooves. When the worm rotates, its helical grooves push on the first gear's teeth, causing the first gear and its coaxial second gear to rotate.

[0011] Furthermore, the second gear set includes a third gear and a fourth gear coaxially connected to the third gear, and the third gear is meshed with the second gear.

[0012] In the above technical solution, the primary function of the second gear set is to further transmit the rotational motion of the first gear set to the subsequent gear sets, acting as an intermediate transmission, ensuring smooth and continuous transmission of the rotational motion throughout the entire transmission system. The third gear is meshed with the second gear. This connection is achieved through the interaction between the teeth of the two gears. When the second gear rotates, its teeth push the teeth of the third gear, causing the third gear and its coaxial fourth gear to rotate.

[0013] Furthermore, the third gear set includes a fifth gear and a sixth gear coaxially connected to the fifth gear, the fifth gear is meshed with the fourth gear, and the sixth gear is meshed with the sector gear.

[0014] In the above technical solution, the fifth gear is meshed with the fourth gear, meaning that the rotational motion of the second gear set is transmitted to the third gear set. When the fourth gear rotates, its teeth push the teeth of the fifth gear, causing the fifth gear to rotate. Simultaneously, the sixth gear is also meshed with the sector gear. When the fifth gear rotates, it drives the sixth gear, which in turn transmits the rotational motion to the sector gear through meshing.

[0015] Furthermore, it also includes a seventh gear, which is meshed with the fifth gear, and the central axis of the seventh gear is connected to a magnetoelectric encoder.

[0016] In the above technical solution, the meshing connection between the seventh gear and the fifth gear is achieved through the interaction between their teeth. When the fifth gear rotates, its teeth push the teeth of the seventh gear, causing the seventh gear to rotate. A magnetoelectric encoder is connected to the central shaft of the seventh gear. A magnetoelectric encoder is a sensor used to measure rotation angle, speed, or position. It typically consists of a magnet (usually fixed to a rotating shaft) and one or more sensors (used to detect changes in the magnet's magnetic field). When the seventh gear rotates, the magnet on its central shaft rotates with it, thereby changing the distribution of the magnetic field. The sensors in the magnetoelectric encoder detect this magnetic field change and convert it into an electrical signal for output, enabling real-time monitoring of the display's rotation angle.

[0017] Furthermore, it also includes a support member, one end of which is sleeved on the outer periphery of the rotating shaft and located between the damping friction sleeve and the sector gear, and the flip mechanism is installed on the support member.

[0018] In the above technical solution, the support member provides sufficient support and stability for the flipping mechanism to ensure that it can normally perform the flipping action of the display screen.

[0019] Furthermore, the rotating shaft is provided with a protrusion, and the support member is provided with a guide groove at a position corresponding to the protrusion, and the protrusion rotates along the guide groove to limit the rotation angle of the display screen.

[0020] In the above technical solution, when the shaft rotates, the protrusion on it rotates along the guide groove on the support member. Because the shape and size of the guide groove are fixed, the rotation range of the protrusion within the guide groove is also limited. This effectively limits the rotation angle of the display screen.

[0021] Furthermore, it also includes a base, and the flip mechanism cooperates with the sector gear to drive the mounting bracket to rotate on the base.

[0022] In the above technical solution, when the display screen needs to be flipped, the flip mechanism is activated, driving the sector gear to rotate. The rotation of the sector gear further drives the mounting bracket to rotate on the base until the display screen reaches the desired angle.

[0023] Furthermore, a circuit board is provided in the base, and connectors on the circuit board pass through the base.

[0024] In this technical solution, the circuitry on the circuit board processes signals from components such as the flip mechanism and the sector gear, controlling their operation according to pre-set logic or instructions. The breakout design of the connectors allows for easy connection to external devices (such as power supplies and controllers), enhancing the mechanism's usability and flexibility.

[0025] Compared to the prior art, the present invention offers the following advantages: A flipping mechanism is provided, comprising a drive member and a gear assembly. The output end of the drive member is connected to a worm gear, one end of the gear assembly is connected to the worm gear, and the other end is connected to a sector gear on the rotating shaft. When the drive member is actuated, the worm gear transmits power to the gear assembly, which in turn rotates the sector gear, thereby flipping the display screen mounted on the load end. A damping friction sleeve is also provided on the rotating shaft, providing a certain amount of frictional resistance via a damping adjustment shim thereon. This resistance ensures smooth and slow movement of the display screen during flipping, preventing sudden or excessive flipping. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The figure is a schematic structural diagram of a vehicle-mounted rear display screen flipping device according to an embodiment of the present invention.

[0027] Figure 2 This is a structural diagram of the flipping mechanism of an embodiment of the present utility model.

[0028] Figure 3 This is a schematic structural diagram of the boss and guide groove in an embodiment of the utility model.

[0029] Explanation of Figure Numbers

[0030] 1. Mounting bracket; 101. Rotating shaft; 1011. Protrusion; 102. Load end;

[0031] 2. Flipping mechanism; 201. Driving member; 202. Gear assembly; 2021. First gear set; 2021a. First gear; 2021b. Second gear; 2022. Second gear set; 2022a. Third gear; 2022b. Fourth gear; 2023. Third gear set; 2023a. Fifth gear; 2023b. Sixth gear; 203. Worm;

[0032] 3. Display screen;

[0033] 4. Damping friction sleeve;

[0034] 5. Damping adjustment gasket;

[0035] 6. Sector gear;

[0036] 7. Seventh gear;

[0037] 8. Magnetoelectric encoder;

[0038] 9. Support member; 901. Guide groove;

[0039] 10. Base;

[0040] 11. Circuit board; 110. Connector. DETAILED DESCRIPTION

[0041] The following is a detailed description of the vehicle rear display screen flipping device of the present invention, with reference to specific embodiments and accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein.

[0042] Please refer to Figure 1 and Figure 2 In a preferred embodiment, the vehicle-mounted rear display screen flipping device of the present invention includes a mounting bracket 1 and a flipping mechanism 2 for controlling the flipping of the mounting bracket 1. The mounting bracket 1 includes a rotating shaft 101 and a load end 102 connected to the rotating shaft 101 for mounting a display screen 3. The outer periphery of the rotating shaft 101 is provided with a damping friction sleeve 4, and the damping friction sleeve 4 is provided with a plurality of damping adjustment gaskets 5. The damping adjustment gaskets 5 are arranged along the axial direction of the damping friction sleeve 4. The end of the rotating shaft 101 away from the damping friction sleeve 4 is provided with a sector gear 6. The flipping mechanism 2 includes a driving member 201 and a gear assembly 202. The output end of the driving member 201 is connected to a worm 203, and the worm 203 is transmission-connected to the sector gear 6 through the gear assembly 202.

[0043] In practical application, when the display screen 3 needs to be flipped, the driver 201 activates, causing the worm 203 connected to its output end to rotate. The gear assembly 202, meshing with the worm 203, transmits power to the sector gear 6. The sector gear 6 is fixedly connected to the rotating shaft 101, so when the worm 203 rotates, the sector gear 6 drives the rotating shaft 101 with it. As the rotating shaft 101 rotates, the display screen 3, mounted on the load end 102, also flips to the desired angle. When the target angle is reached, the driver 201 stops, and the transmission of the worm 203 and gear assembly 202 also stops, leaving the display screen 3 in its current position for passengers to view. A damping friction sleeve 4 is provided around the outer periphery of the rotating shaft 101. The damping friction sleeve 4 provides a certain amount of frictional resistance through the damping adjustment shims 5 thereon. This resistance ensures smooth and slow movement of the display screen 3 during flipping, preventing sudden or excessive flipping. At the same time, users can adjust the damping during the flipping process by increasing or decreasing the number of damping adjustment pads 5 according to actual needs. The present invention realizes the flipping of the display screen 3 by providing a flipping mechanism 2 that cooperates with the sector gear 6 on the rotating shaft 101. At the same time, the damping friction sleeve 4 and damping adjustment pads 5 are provided on the rotating shaft 101 to ensure that the rotating shaft 101 can rotate smoothly and slowly, thereby preventing the display screen 3 from flipping too quickly or too violently during flipping, which may cause discomfort to passengers.

[0044] Specifically, gear assembly 202 includes a first gear set 2021, a second gear set 2022, and a third gear set 2023 that are meshed in sequence. The first gear set 2021 is meshed with the worm 203, and the third gear set 2023 is meshed with the sector gear 6. The first gear set 2021, the second gear set 2022, and the third gear set 2023 are meshed in sequence, meaning that the motion between them is transferable, that is, the motion of one gear set is sequentially transmitted to the next gear set. Specifically, when the worm 203 rotates, it drives the first gear set 2021 to rotate. The rotation of the first gear set 2021 is then transmitted to the second gear set 2022. The rotation of the second gear set 2022 is then transmitted to the third gear set 2023. Finally, the rotation of the third gear set 2023 drives the sector gear 6 to perform a specific motion.

[0045] Please refer to Figure 2In this embodiment, the first gear set 2021 includes a first gear 2021a and a second gear 2021b coaxially connected to the first gear 2021a. The first gear 2021a is meshed with the worm 203. The meshing connection between the first gear 2021a and the worm 203 is achieved through the interaction between the teeth of the first gear 2021a and the spiral grooves of the worm 203. When the worm 203 rotates, its spiral grooves push the teeth of the first gear 2021a, causing the first gear 2021a and the coaxial second gear 2021b to rotate. As previously described, the first gear set 2021 meshes sequentially with the subsequent second gear set 2022 and the third gear set 2023. Therefore, the output of the first gear set 2021 (i.e., the rotation of the second gear 2021b) serves as the input to the second gear set 2022 and is subsequently transmitted to the third gear set 2023 and finally to the sector gear 6.

[0046] Please refer to Figure 2 In this embodiment, the second gear set 2022 includes a third gear 2022a and a fourth gear 2022b coaxially connected to the third gear 2022a. The third gear 2022a meshes with the second gear 2021b. The primary function of the second gear set 2022 is to transmit the rotational motion of the first gear set 2021 to subsequent gear sets, acting as an intermediate transmission mechanism to ensure smooth and continuous transmission of the rotational motion throughout the entire transmission system. The third gear 2022a and the second gear 2021b are meshed. This connection is achieved through the interaction between the teeth of the two gears. When the second gear 2021b rotates, its teeth push the teeth of the third gear 2022a, causing the third gear 2022a and the coaxial fourth gear 2022b to rotate. As previously described, the second gear set 2022 meshes sequentially with the first gear set 2021 and the third gear set 2023. Therefore, the input of the second gear set 2022 (ie, the rotation of the third gear 2022 a ) comes from the output of the first gear set 2021 (ie, the rotation of the second gear 2021 b ), and its output (ie, the rotation of the fourth gear 2022 b ) serves as the input of the third gear set 2023 .

[0047] Please refer to Figure 2In this embodiment, the third gear set 2023 includes a fifth gear 2023a and a sixth gear 2023b coaxially connected to the fifth gear 2023a. The fifth gear 2023a is meshed with the fourth gear 2022b, and the sixth gear 2023b is meshed with the sector gear 6. The meshing connection between the fifth gear 2023a and the fourth gear 2022b means that the rotational motion of the second gear set 2022 is transmitted to the third gear set 2023. When the fourth gear 2022b rotates, its teeth push the teeth of the fifth gear 2023a, causing the fifth gear 2023a to rotate. Simultaneously, the sixth gear 2023b is also meshed with the sector gear 6. When the fifth gear 2023a rotates, it drives the sixth gear 2023b to rotate, thereby transmitting the rotational motion to the sector gear 6 through meshing. As previously mentioned, third gear set 2023 is the last gear set in the transmission system. Its input comes from second gear set 2022 (the rotation of fourth gear 2022b), and its output is transmitted to sector gear 6. Sector gear 6 is used to rotate mounting bracket 1, thereby achieving flipping of the display screen mounted on mounting bracket 1.

[0048] It should be noted that the present invention also includes a seventh gear 7, which meshes with the fifth gear 2023a. A magnetoelectric encoder 8 is connected to the central axis of the seventh gear 7. The meshing connection between the seventh gear 7 and the fifth gear 2023a is achieved through the interaction between their teeth. When the fifth gear 2023a rotates, its teeth push the teeth of the seventh gear 7, causing the seventh gear 7 to rotate. A magnetoelectric encoder 8 is connected to the central axis of the seventh gear 7. A magnetoelectric encoder 8 is a sensor used to measure rotation angle, speed, or position. It typically consists of a magnet (usually fixed to a rotating shaft) and one or more sensors (used to detect changes in the magnet's magnetic field). When the seventh gear 7 rotates, the magnet on its central axis rotates with it, thereby changing the distribution of the magnetic field. The sensors in the magnetoelectric encoder 8 detect this magnetic field change and convert it into an electrical signal for output, enabling real-time monitoring of the rotation angle of the display screen 3. Due to the design of the magnetoelectric encoder 8, passengers can hover the display screen 3 at any position as needed.

[0049] Furthermore, a support member 9 is included, one end of which is sleeved around the outer periphery of the rotating shaft 101 and located between the damping friction sleeve 4 and the sector gear 6. The flip mechanism 2 is mounted on the support member 9. The support member 9 provides sufficient support and stability for the flip mechanism 2 to ensure that it can properly flip the display screen 3.

[0050] In this embodiment, a protrusion 1011 is provided on the rotating shaft 101, and a guide groove 901 is provided on the support member 9 at a position corresponding to the protrusion 1011. The protrusion 1011 rotates along the guide groove 901 to limit the rotation angle of the display screen 3. When the rotating shaft 101 rotates, the protrusion 1011 rotates along the guide groove 901 on the support member 9. Because the shape and size of the guide groove 901 are fixed, the rotation range of the protrusion 1011 within the guide groove 901 is also limited. This effectively limits the rotation angle of the display screen 3. For example, if the display screen 3 is desired to rotate only within a specific angle range (e.g., 0° to 90°), the guide groove 901 can be designed to match the protrusion 1011 only within this angle range.

[0051] Furthermore, the display device includes a base 10. A flip mechanism 2 cooperates with a sector gear 6 to drive the mounting bracket 1 to rotate on the base 10. When the display screen 3 needs to be flipped, the flip mechanism 2 is activated, driving the sector gear 6 to rotate. The rotation of the sector gear 6 further drives the mounting bracket 1 to rotate on the base 10 until the display screen 3 reaches the desired angle.

[0052] Please refer to Figure 1 In this embodiment, a circuit board 11 is housed within the base 10, with a connector 110 extending from the base 10. The circuitry on the circuit board 11 processes signals from components such as the flip mechanism 2 and the sector gear 6, controlling their operation according to pre-set logic or instructions. The protruding design of the connector 110 facilitates connection to external devices (such as a power supply and controller), thereby enhancing the mechanism's usability and flexibility.

[0053] In the description of the present invention, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0054] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0055] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0056] Although the present invention has been described with reference to the above specific embodiments, it is obvious that those skilled in the art can make many substitutions, modifications and variations based on the above content. Therefore, all such substitutions, modifications and variations are included within the spirit and scope of the appended claims.

Claims

1. A vehicle-mounted rear display screen flipping device, comprising a mounting bracket and a flipping mechanism for controlling the flipping of the mounting bracket, wherein the mounting bracket comprises a rotating shaft and a load end connected to the rotating shaft for mounting the display screen, characterized in that: The outer peripheral sleeve of the rotating shaft is provided with a damping friction sleeve, and the damping friction sleeve is provided with a plurality of damping adjustment gaskets, and the damping adjustment gaskets are arranged along the axial direction of the damping friction sleeve. The end of the rotating shaft away from the damping friction sleeve is provided with a sector gear, and the flipping mechanism includes a driving member and a gear assembly. The output end of the driving member is connected to a worm, and the worm is connected to the sector gear through the gear assembly.

2. The vehicle-mounted rear display screen flipping device according to claim 1, characterized in that: The gear assembly includes a first gear set, a second gear set and a third gear set meshed in sequence, the first gear set is meshed and connected with the worm, and the third gear set is meshed and connected with the sector gear.

3. The vehicle-mounted rear display screen flipping device according to claim 2, characterized in that: The first gear set includes a first gear and a second gear coaxially connected to the first gear, and the first gear is meshed with the worm.

4. The vehicle-mounted rear display screen flipping device according to claim 3, characterized in that: The second gear set includes a third gear and a fourth gear coaxially connected to the third gear, and the third gear is meshed with the second gear.

5. The vehicle-mounted rear display screen flipping device according to claim 4, characterized in that: The third gear set includes a fifth gear and a sixth gear coaxially connected to the fifth gear. The fifth gear is meshed with the fourth gear, and the sixth gear is meshed with the sector gear.

6. The vehicle-mounted rear display screen flipping device according to claim 5, characterized in that: It also includes a seventh gear, which is meshed with the fifth gear, and the central axis of the seventh gear is connected to a magnetoelectric encoder.

7. The vehicle-mounted rear display screen flipping device according to claim 1, characterized in that: It also includes a support member, one end of which is sleeved on the outer periphery of the rotating shaft and located between the damping friction sleeve and the sector gear, and the flip mechanism is installed on the support member.

8. The vehicle-mounted rear display screen flipping device according to claim 7, characterized in that: The rotating shaft is provided with a protrusion, and the support member is provided with a guide groove at a position corresponding to the protrusion. The protrusion rotates along the guide groove to limit the rotation angle of the display screen.

9. The vehicle-mounted rear display screen flipping device according to claim 1, characterized in that: It also includes a base, and the flip mechanism cooperates with the sector gear to drive the mounting bracket to rotate on the base.

10. The vehicle-mounted rear display screen flipping device according to claim 9, characterized in that: A circuit board is arranged in the base, and a connector on the circuit board passes through the base.

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