Gravity balance mechanism of display screen, display screen device and vehicle

Abstract

The utility model discloses a gravitational balance mechanism of display screen, display screen device and vehicle, the gravitational balance mechanism of display screen includes: first transmission piece, second transmission piece and elastic piece, the first transmission piece is suitable for the transmission connection with display screen and rotates with display screen, second transmission piece with first transmission piece transmission cooperation, elastic piece with second transmission piece transmission cooperation. The second transmission part is driven by the first transmission part to do linear motion, the elastic part is connected with the second transmission part and suitable for abutting against a mounting carrier of the display screen, and the second transmission part compresses and releases the elastic part through linear motion of the second transmission part. By arranging the elastic piece between the second transmission piece and the display screen, the elastic piece can provide elastic force for the second transmission piece, so that certain assisting force is conveniently provided for closing the display screen through gravity balance, and the occupied space of a car roof can be saved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a gravity balancing mechanism of a display screen, a display screen device and a vehicle. Background Art

[0002] At present, in order to increase entertainment, some vehicles are equipped with a ceiling screen on the roof, and the ceiling screen can be rotated relative to the ceiling, so that the ceiling screen can be effectively stored. In order to reduce the influence of the ceiling screen's own gravity when it is opened and closed, some ceiling screens are equipped with a gravity balance structure, for example, a gravity balance bar structure is arranged on the opposite sides of the ceiling screen, but this gravity balance bar structure is complex, and the weight and volume are both large, which will affect the overall weight of the display screen, thereby being unfavorable to the installation and use of the display screen, as well as being unfavorable to the space occupied by the roof, and will also increase the cost. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a gravity balancing mechanism of a display screen, which can save the occupied space of the roof.

[0004] The utility model further provides a display screen device.

[0005] The utility model further provides a vehicle.

[0006] According to the gravity balancing mechanism of the display screen of the utility model, it includes: a first transmission member, a second transmission member and an elastic member, the first transmission member is suitable for being connected to the display screen in transmission and rotating with the display screen, the second transmission member is in transmission cooperation with the first transmission member, the second transmission member performs linear motion under the drive of the first transmission member, the elastic member is connected to the second transmission member and is suitable for abutting against the mounting carrier of the display screen, and the second transmission member compresses and releases the elastic member through its own linear motion.

[0007] According to the gravity balancing mechanism of the display screen of the utility model, by connecting the first transmission member to the display screen and the second transmission member cooperating with the first transmission member, the first transmission member and the second transmission member can move with the display screen when the display screen rotates, and an elastic member is arranged between the second transmission member and the display screen. Such an arrangement enables the elastic member to provide elastic force to the second transmission member, thereby facilitating the opening or closing of the display screen by utilizing gravity balance, thereby saving space occupied by the roof.

[0008] In some examples of the present invention, the second transmission member performs linear motion along a tangent line at a point where the second transmission member cooperates with the first transmission member.

[0009] In some examples of the present invention, the first transmission member and the second transmission member are coupled to each other through a gear meshing structure.

[0010] In some examples of the present invention, the first transmission member is configured as a gear, the second transmission member is configured as a rack, and the gear and the rack are meshed.

[0011] In some examples of the present invention, the gear is structured with a through hole penetrating along the axial direction of the gear, and the through hole is used to sleeve the rotating shaft of the display screen.

[0012] In some examples of the present invention, a limiting protrusion is provided at one end of the second transmission member facing the elastic member, and the end of the elastic member is sleeved on the limiting protrusion.

[0013] In some examples of the present invention, the elastic member is configured as a coil spring.

[0014] The display screen device according to the utility model is characterized in that it comprises: a display screen and the gravity balance mechanism of the display screen described above, and the display screen is suitable for being rotatably mounted on a mounting carrier.

[0015] In some examples of the present invention, the display screen device further includes: a mounting structure, wherein the mounting structure is suitable for being mounted on a vehicle roof and serving as the mounting carrier, and the display screen is rotatably mounted on the mounting structure.

[0016] In some examples of the present invention, the mounting structure is formed with a mounting cavity and a receiving groove for receiving the display screen, and the gravity balancing mechanism is installed in the mounting cavity.

[0017] In some examples of the utility model, the mounting structure includes: a fixing plate and a top cover, the fixing plate is suitable for being installed on the vehicle roof, the elastic member abuts against the fixing plate, the top cover is installed on the fixing plate, the top cover and the fixing plate jointly define the accommodating groove and the mounting cavity, the top cover is provided with a connecting hole connecting the accommodating groove and the mounting cavity, and the display screen is transmitted and cooperated with the first transmission member through the connecting hole.

[0018] In some examples of the present invention, the installation cavity is arranged around the receiving groove.

[0019] In some examples of the present invention, the display screen device further includes: an electromagnetic lock, which is arranged on the mounting structure and is used to lock the display screen at a current position.

[0020] In some examples of the utility model, the display screen device also includes: a driving mechanism, which is installed on the installation carrier and located on one side of the display screen, and a rotating shaft is provided on the one side of the display screen. The driving mechanism is transmission-connected to the rotating shaft to drive the display screen through the rotating shaft.

[0021] In some examples of the present invention, the driving mechanism includes: a driving member, a transmission assembly and a mounting shaft, the driving member is installed on the mounting carrier, the transmission assembly is transmission-connected to the driving member, the mounting shaft is transmission-connected to the transmission assembly, and the mounting shaft is installed on the rotating shaft and rotates synchronously with the rotating shaft.

[0022] In some examples of the present invention, the transmission assembly includes: an input member and an output member, the input member is arranged on the driving shaft of the driving member, the output member is sleeved on the mounting shaft, and the output member is transmission-connected to the input member.

[0023] In some examples of the present invention, the input member is an input worm, and the output member is an output worm wheel; the transmission assembly also includes: an intermediate worm wheel and an intermediate worm, the intermediate worm wheel is meshed with the input worm, the intermediate worm is arranged on the intermediate worm wheel and rotates synchronously with the intermediate worm wheel, and the intermediate worm is meshed with the output worm wheel.

[0024] In some examples of the present invention, the driving mechanism further includes: a stop assembly, the mounting shaft is provided with a first stop portion, the stop assembly is sleeved on the mounting shaft, the stop assembly and the first stop portion are spaced apart in the axial direction of the mounting shaft, and the output member is stopped between the first stop portion and the stop assembly.

[0025] In some examples of the present invention, the stop assembly includes: a stop member, a sleeve and an elastic pressure member, the stop member is installed on the mounting shaft, the sleeve is sleeved on the mounting shaft and is located on the side of the stop member facing the output member, the sleeve is constructed with a second stop portion that stops the output member, and the elastic pressure member is sleeved on the sleeve and fits between the stop member and the second stop portion.

[0026] In some examples of the present invention, the elastic pressure member is configured as a compression spring, the stop member is a spring retaining ring, the mounting shaft is provided with a stop groove, and the spring retaining ring is inserted into the stop groove.

[0027] In some examples of the present invention, the stopper assembly further includes: a first gasket, which is disposed between the elastic pressure member and the stopper.

[0028] In some examples of the present invention, the driving mechanism further includes: a plane bearing and a second gasket, wherein the plane bearing is sleeved on the mounting shaft and located on a side of the output member facing the stop assembly, and the second gasket is disposed between the plane bearing and the stop assembly.

[0029] In some examples of the present invention, the mounting shaft is spline-matched with the rotating shaft.

[0030] In some examples of the utility model, the display screen device also includes: a sensor bracket and an angular displacement sensor, the sensor bracket is located on the other side of the display screen so as to be arranged on opposite sides of the display screen with the driving mechanism, the sensor bracket is installed on the rotating shaft on the other side of the display screen, the angular displacement sensor is arranged on the sensor bracket, and the angular displacement sensor is used to detect the rotation angle of the display screen.

[0031] The vehicle according to the utility model comprises: the display screen device mentioned above.

[0032] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0034] Figure 1 is an exploded view of the display device;

[0035] Figure 2 is a schematic diagram of the structure of the display screen device from a first angle;

[0036] Figure 3 It is a partial exploded view of the display device;

[0037] Figure 4 is a schematic diagram of the structure of the display screen device at a second angle;

[0038] Figure 5 is a partial enlarged view of the display device;

[0039] Figure 6 This is a schematic diagram of the structure when the display screen is fully opened;

[0040] Figure 7 It is a structural diagram of the display screen opening process;

[0041] Figure 8 It is a schematic diagram of the structure when the display screen is completely closed.

[0042] Reference numerals:

[0043] 100, display screen; 110, gravity balance mechanism of display screen; 200, first transmission member; 300, second transmission member; 310, limit protrusion; 400, elastic member; 500, mounting structure; 510, mounting cavity; 520, accommodating groove; 530, fixing plate; 540, top cover; 541, connecting hole; 600, electromagnetic lock; 700, driving mechanism; 710, driving member; 720, transmission assembly; 721, input member; 722, output member; 730, mounting shaft; 731, first stopper; 732, stopper groove; 740, stopper assembly; 741, stopper; 742, sleeve; 743, elastic pressure member; 744, first gasket; 745, second stopper; 750, plane bearing; 760, second gasket; 800, sensor bracket; 900, angular displacement sensor. DETAILED DESCRIPTION

[0044] The embodiments of the present utility model are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present utility model are described in detail below.

[0045] Reference below Figure 1-Figure 8 A gravity balancing mechanism 110 of a display screen according to an embodiment of the present invention is described, and the gravity balancing mechanism 110 of a display screen is applied in a vehicle.

[0046] like Figure 1-Figure 8 As shown, the gravity balancing mechanism 110 of the display screen according to the utility model includes: a first transmission member 200, a second transmission member 300 and an elastic member 400. The first transmission member 200 is suitable for being connected to the display screen 100 for transmission, and the first transmission member 200 rotates with the display screen 100. The second transmission member 300 cooperates with the first transmission member 200 for transmission. The second transmission member 300 performs linear motion under the drive of the first transmission member 200. The elastic member 400 is connected to the second transmission member 300, and the elastic member 400 is suitable for abutting against the mounting carrier of the display screen 100. The second transmission member 300 compresses and releases the elastic member 400 through its own linear motion.

[0047] It is understandable that the display screen 100 can be a ceiling screen, that is, a display screen arranged on the roof of a vehicle. The first transmission member 200, the second transmission member 300 and the elastic member 400 constitute the main structure of the gravity balance mechanism 110 of the display screen. The transmission cooperation between the first transmission member 200 and the second transmission member 300 can make the second transmission member 300 move through the first transmission member 200 when the display screen 100 rotates, and the movement mode of the second transmission member 300 is linear motion, which refers to the movement form of an object when it moves along a straight line. The second transmission member 300 compresses and releases the elastic member 400 through its own movement, and the change direction of the elastic member 400 is the movement direction of the second transmission member 300, so that the two do not need to change the movement direction. Since the directions of the two are consistent, the stability of the cooperation between the two is higher, and the gravity balance mechanism 110 has good operating reliability and long service life. Moreover, with such an arrangement, the elastic member 400 can occupy a smaller space, so that the gravity balancing mechanism 110 can occupy a smaller space, which can be beneficial to the arrangement of the gravity balancing mechanism 110, can further facilitate the arrangement of the display screen 100, and can better utilize the space on the vehicle roof.

[0048] Specifically, when the display screen 100 needs to be opened, the display screen 100 rotates under the combined action of gravity and drive. At this time, the first transmission member 200 rotates with the display screen 100, and then drives the second transmission member 300 to move, so that pressure can be applied to the elastic member 400. The elastic member 400 generates thrust on the second transmission member 300, so that the first transmission member 200 and the installation shaft 730 can rotate to generate a reverse force, so that gravity can be balanced during the opening process. Moreover, when the display screen 100 is closed, the reverse force can act on the second transmission member 300 in the opposite direction, and then be transmitted to the display screen 100 through the first transmission member 200, so that the difficulty of closing can be reduced and the smoothness of closing the display screen 100 can be improved.

[0049] In addition, compared with the traditional gravity balance bar structure, the gravity balance mechanism 110 of the display screen of the present invention has fewer parts, simpler layout and lower cost.

[0050] Therefore, by connecting the first transmission member 200 to the display screen 100, the second transmission member 300 cooperates with the first transmission member 200 for transmission, and arranging the elastic member 400 between the second transmission member 300 and the display screen 100, the elastic member 400 can provide elastic force to the second transmission member 300, thereby facilitating the use of gravity balance to balance the gravity of the display screen 100, and the gravity balance has better stability for the display screen 100, occupies less space, and can save space on the roof.

[0051] Among them, Figure 4 and Figure 5As shown, the second transmission member 300 performs linear motion along the tangent of the matching point with the first transmission member 200. This arrangement can transmit the rotational force of the first transmission member 200 to the second transmission member 300, and the second transmission member 300 has better stability in the tangential motion along the matching point with the first transmission member 200, which can prevent it from deviating from the first transmission member 200 and can perform continuous and stable linear motion.

[0052] In addition, if Figure 4 and Figure 5 As shown, the first transmission member 200 and the second transmission member 300 are matched with each other through a tooth engagement structure. Such a configuration facilitates the transmission cooperation between the first transmission member 200 and the second transmission member 300, and the first transmission member 200 and the second transmission member 300 can be limited to each other by the tooth engagement structure, thereby ensuring the position stability and transmission stability of the two.

[0053] Alternatively, if Figure 4 and Figure 5 As shown, the first transmission member 200 is configured as a gear, and the second transmission member 300 is configured as a rack, and the gear and the rack are meshed. That is, the gear and the rack are meshed and matched, and such a configuration facilitates the transmission and matching between the first transmission member 200 and the second transmission member 300, and the meshing of the gear and the rack is stable, and the operation of the gravity balancing mechanism 110 is more stable. Moreover, the length direction of the rack is the movement direction of the rack.

[0054] In addition, if Figure 3 and Figure 5 As shown, the gear structure has a through hole penetrating along the axial direction of the gear, and the through hole is used to sleeve the rotating shaft of the display screen 100. It can be understood that a through hole is set in the middle of the gear, and the through hole can be sleeved on the rotating shaft of the display screen 100. This arrangement can make the first transmission member 200 sleeved on the rotating shaft of the display screen 100, so that the first transmission member 200 can be connected to the rotating shaft of the display screen 100, thereby facilitating the transmission force of the display screen 100 to be transmitted to the first transmission member 200. By setting the through hole, the gear can be better integrated with the display screen 100, and the display screen 100 and the surrounding structural parts can be made more compact.

[0055] In addition, if Figure 3As shown, a limiting protrusion 310 is provided at one end of the second transmission member 300 facing the elastic member 400, and the end of the elastic member 400 is sleeved on the limiting protrusion 310. In other words, the limiting protrusion 310 is provided at the upper end of the second transmission member 300, and such a configuration facilitates the lower end of the elastic member 400 to be sleeved on the limiting protrusion 310, so that the limiting protrusion 310 can limit the lower end of the elastic member 400, and the position stability of both can be ensured, and then the elastic member 400 can provide a stable elastic force to the second transmission member 300. The mounting carrier can also be provided with a protrusion structure that is the same as the limiting protrusion 310, and the protrusion structure is also sleeved with the elastic member 400, so that the position reliability of the elastic member 400 can be further improved.

[0056] In particular, if Figure 3 As shown, the elastic member 400 is constructed as a coil spring, which has a simple structure, low cost, and is easy to cooperate with the second transmission member 300 and the mounting carrier. The coil spring has the functions of vibration absorption, vibration reduction protection, support adjustment and force transmission.

[0057] like Figure 1 and Figure 2 As shown, the display screen device according to the utility model comprises: a display screen 100 and a gravity balance mechanism 110 of the display screen of the above embodiment, and the display screen 100 is suitable for being rotatably mounted on a mounting carrier. It can be understood that the display screen 100 and the gravity balance mechanism 110 of the display screen constitute the main structure of the display screen device, and the gravity balance mechanism 110 of the display screen can control the rotation of the display screen 100. The display screen 100 is arranged on the mounting carrier, so that it is convenient for the driver and passengers to control the opening and closing of the display screen 100.

[0058] In addition, if Figure 1 As shown, the display screen device further includes: a mounting structure 500, which is suitable for being mounted on the roof and serving as a mounting carrier, and the display screen 100 is rotatably mounted on the mounting structure 500. That is to say, the mounting structure 500 is located at the roof, and the mounting structure 500 is fixedly connected to the roof. The display screen 100 is located in the mounting structure 500 when not in use, and the display screen 100 can be rotated relative to the mounting structure 500 when in use, thereby saving the space occupied by the display screen 100. The mounting structure 500 can form an integral structure with the display screen 100, and then be integrally mounted on the roof, which can simplify the installation steps of the display screen 100 and reduce the difficulty of installing the display screen 100. The roof is the roof of the vehicle. Of course, the display screen device can also omit the mounting structure 500 and use the roof as the mounting carrier.

[0059] Among them, Figure 1As shown, the mounting structure 500 is formed with a mounting cavity 510 and a receiving groove 520 for receiving the display screen 100, and the gravity balance mechanism is installed in the mounting cavity 510. It can be understood that the mounting cavity 510 and the receiving groove 520 are formed inside the mounting structure 500, the mounting cavity 510 can provide an installation space and a limit for the gravity balance mechanism 110, and the receiving groove 520 can provide a placement space for the display screen 100 and allow the display screen 100 to be opened and closed, thereby saving the space occupied by the display screen 100.

[0060] In addition, if Figure 1 As shown, the mounting structure 500 includes: a fixing plate 530 and a top cover 540, the fixing plate 530 is suitable for being installed on the roof, the elastic member 400 abuts against the fixing plate 530, the top cover 540 is installed on the fixing plate 530, the top cover 540 and the fixing plate 530 jointly define a receiving groove 520 and a mounting cavity 510, the top cover 540 is provided with a connecting hole 541 connecting the receiving groove and the mounting cavity 510, and the display screen 100 is transmitted and cooperated with the first transmission member 200 through the connecting hole 541. That is to say, the fixing plate 530 and the top cover 540 constitute the main structure of the mounting structure 500. The fixing plate 530 is connected to the roof, so that the mounting structure 500 can be fixed on the roof, thereby making the mounting structure 500 more secure. The upper end of the elastic member 400 abuts against the fixing plate 530, so that the elastic member 400 can be located between the fixing plate 530 and the second transmission member 300, thereby facilitating the elastic member 400 to provide elastic force to the second transmission member 300. The top cover 540 is arranged on the fixing plate 530, so that a receiving groove 520 and an installation cavity 510 can be formed between the top cover 540 and the fixing plate 530, thereby facilitating the installation of the display screen 100 and the gravity balance mechanism in the mounting structure 500.

[0061] In particular, if Figure 1 As shown, the mounting cavity 510 is arranged around the receiving groove 520, so that the receiving groove 520 can be located in the middle of the mounting cavity 510. This arrangement facilitates the installation of the display screen 100 in the receiving groove 520. The gravity balance mechanism is located on one side of the display screen 100, and the gravity balance mechanism is located in the mounting cavity 510, so that the gravity balance mechanism can control the rotation of the display screen 100.

[0062] In addition, if Figure 2 As shown, the display screen device further includes: an electromagnetic lock 600, which is disposed on the mounting structure 500 and is used to lock the display screen 100 at the current position. It is understandable that the electromagnetic lock 600 is located on the mounting structure 500, and is stored in the receiving groove 520 when the display screen 100 is not in use, so that the electromagnetic lock 600 can lock the display screen 100, thereby preventing the display screen 100 from shaking during driving. The electromagnetic lock 600 can control the extension and retraction of the lock tongue through electromagnetic force, so as to lock the display screen 100.

[0063] In addition, if Figure 3 As shown, the display screen device further includes: a driving mechanism 700, which is installed on the installation carrier and is located on one side of the display screen 100. A rotating shaft is provided on one side of the display screen 100. The driving mechanism 700 is connected to the rotating shaft through transmission, so that the display screen 100 can be driven by the rotating shaft. In other words, the driving mechanism 700 is located in the installation carrier and is located on one side of the display screen 100. A rotating shaft is provided on a side of the display screen 100 close to the driving mechanism 700, so that the driving mechanism 700 and the rotating shaft can be connected, and then the driving mechanism 700 can provide driving force to the display screen 100 to rotate.

[0064] Among them, Figure 3 As shown, the driving mechanism 700 includes: a driving member 710, a transmission assembly 720 and a mounting shaft 730. The driving member 710 is installed on the mounting carrier, the transmission assembly 720 is connected to the driving member 710 in a transmission manner, the mounting shaft 730 is connected to the transmission assembly 720 in a transmission manner, the mounting shaft 730 is installed on the rotating shaft, and the mounting shaft 730 rotates synchronously with the rotating shaft. It can be understood that the driving member 710, the transmission assembly 720 and the mounting shaft 730 constitute the main structure of the driving mechanism 700, the driving member 710 is located and installed in the mounting carrier, and the mounting shaft 730 is connected to the rotating shaft. This arrangement allows the driving member 710, the transmission assembly 720, the mounting shaft 730 and the rotating shaft to be connected in sequence, so that the driving force of the driving member 710 can be transmitted to the display screen 100 through the transmission assembly 720, the mounting shaft 730 and the rotating shaft, and then the display screen 100 can be rotated.

[0065] In addition, if Figure 3 As shown, the transmission assembly 720 includes: an input member 721 and an output member 722, the input member 721 is arranged on the driving shaft of the driving member 710, the output member 722 is sleeved on the mounting shaft 730, and the output member 722 is drivingly connected to the input member 721. That is to say, the input member 721 and the output member 722 constitute the main structure of the transmission assembly 720, which can perform a first-stage reduction transmission, the input member 721 is arranged close to the driving member 710, and the input member 721 is connected to the driving shaft, so that the driving force of the driving member 710 can be transmitted to the transmission assembly 720, the input member 721 is connected to the output member 722, and the output member 722 is connected to the mounting shaft 730, so that the driving member 710, the input member 721, the output member 722 and the mounting shaft 730 can be connected, and then the driving force of the driving member 710 can be transmitted to the mounting shaft 730.

[0066] In particular, if Figure 3As shown, the input member 721 is an input worm, and the output member 722 is an output worm wheel; the transmission assembly 720 also includes: an intermediate worm wheel and an intermediate worm, the intermediate worm wheel is meshed with the input worm, the intermediate worm is arranged on the intermediate worm wheel and rotates synchronously with the intermediate worm wheel, and the intermediate worm is meshed with the output worm wheel. It can be understood that the input worm and the output worm wheel can be matched and connected, so as to facilitate the transmission assembly 720 to transmit the driving force, the intermediate worm wheel and the intermediate worm move synchronously, and the intermediate worm wheel is connected with the input worm, so that the input worm, the intermediate worm wheel, the intermediate worm and the output worm wheel can be sequentially connected, and two-stage reduction transmission can be performed, so as to facilitate the driving force of the driving member 710 to be transmitted to the mounting shaft 730 through the input worm, the intermediate worm wheel, the intermediate worm and the output worm wheel.

[0067] In addition, if Figure 3 As shown, the driving mechanism 700 further includes: a stopper assembly 740, the mounting shaft 730 is provided with a first stopper 731, the stopper assembly 740 is sleeved on the mounting shaft 730, the stopper assembly 740 and the first stopper 731 are spaced apart in the axial direction of the mounting shaft 730, and the output member 722 is stopped between the first stopper 731 and the stopper assembly 740. That is, the first stopper 731 is located on the mounting shaft 730, the stopper assembly 740 is sleeved on the mounting shaft 730, so that the stopper assembly 740 and the first stopper 731 can be matched with the stopper arrangement, and the stopper assembly 740 and the first stopper 731 are spaced apart along the axial direction of the mounting shaft 730, so that the output member 722 can be located between the stopper assembly 740 and the first stopper 731, thereby facilitating the transmission of the driving force to the mounting shaft 730 through the output member 722, avoiding the position change of the output member 722, and ensuring the stability of the power transmission.

[0068] Among them, Figure 3As shown, the stop assembly 740 includes: a stop member 741, a sleeve 742 and an elastic pressure member 743, the stop member 741 is installed on the mounting shaft 730, the sleeve 742 is sleeved on the mounting shaft 730 and is located on the side of the stop member 741 facing the output member 722, the sleeve 742 is constructed with a second stop portion 745 that stops the output member 722, and the elastic pressure member 743 is sleeved on the sleeve 742 and cooperates between the stop member 741 and the second stop portion 745. It can be understood that the stopper 741, the sleeve 742 and the elastic pressure member 743 constitute the main structure of the stopper assembly 740, and the stopper 741 is sleeved on the mounting shaft 730, so that the stopper 741 can block the components on one side of the display screen 100, and the sleeve 742 is passed through the mounting shaft 730, and a second stopper 745 is provided on the sleeve 742. This arrangement can make the elastic pressure member 743 located between the stopper 741 and the second stopper 745, so that the stopper 741 and the second stopper 745 can limit the elastic pressure member 743, thereby preventing other components on one side of the display screen 100 from falling off.

[0069] In particular, if Figure 3 As shown, the elastic pressure member 743 is constructed as a compression spring, the stopper 741 is a spring retaining ring, and the mounting shaft 730 is provided with a stopper groove 732, and the spring retaining ring is inserted into the stopper groove 732. In other words, the stopper groove 732 can limit the spring retaining ring, and the compression spring is provided on the spring retaining ring, so that the compression spring can provide elastic force to the stopper 741, thereby preventing other components on one side of the display screen 100 from falling off.

[0070] In addition, if Figure 3 As shown, the stopper assembly 740 further includes: a first gasket 744, which is disposed between the elastic pressure member 743 and the stopper 741. It is understandable that the first gasket 744 is located between the elastic pressure member 743 and the stopper 741, thereby preventing wear between the elastic pressure member 743 and the stopper 741, thereby extending the service life of the stopper assembly 740.

[0071] In addition, if Figure 3As shown, the driving mechanism 700 further includes: a plane bearing 750 and a second gasket 760. The plane bearing 750 is sleeved on the mounting shaft 730 and is located on the side of the output member 722 facing the stop assembly 740. The second gasket 760 is arranged between the plane bearing 750 and the stop assembly 740. That is, the plane bearing 750 is sleeved on the output member 722, and the plane bearing 750 is arranged toward the stop assembly 740, so that the friction between the output member 722 and the stop assembly 740 can be avoided, thereby extending the service life of the output member 722. The second gasket 760 is located between the plane bearing 750 and the stop assembly 740, so that the friction between the plane bearing 750 and the stop assembly 740 can be avoided, thereby improving the driving effect of the driving mechanism 700 on the display screen 100.

[0072] In particular, if Figure 3 As shown, the mounting shaft 730 is splined with the rotating shaft. Such a configuration can improve the stress resistance between the mounting shaft 730 and the rotating shaft, thereby improving the structural strength between the mounting shaft 730 and the rotating shaft, and further improving the structural strength between the driving mechanism 700 and the display screen 100.

[0073] In addition, Figure 3 As shown, the display screen device further includes: a sensor bracket 800 and an angular displacement sensor 900. The sensor bracket 800 is located on the other side of the display screen 100 so as to be arranged on the opposite sides of the display screen 100 with the driving mechanism 700. The sensor bracket 800 is mounted on the rotating shaft on the other side of the display screen 100. The angular displacement sensor 900 is arranged on the sensor bracket 800. The angular displacement sensor 900 is used to detect the rotation angle of the display screen 100. It can be understood that the sensor bracket 800 is located on the side away from the driving mechanism 700, so that the sensor bracket 800 and the driving mechanism 700 can be located on the opposite sides of the display screen 100 and do not interfere with each other. The angular displacement sensor 900 is arranged on the sensor bracket 800. Such an arrangement can enable the sensor bracket 800 to provide an installation position for the angular displacement sensor 900, so that the angular displacement sensor 900 can detect the rotation angle of the display screen 100, thereby facilitating the driver and passengers to control the angle of the display screen 100.

[0074] Specifically, when the display screen 100 needs to be opened, the display screen 100 rotates due to the combined action of gravity and the installation shaft 730. At this time, the first transmission member 200 rotates with the installation shaft 730, and then drives the second transmission member 300 to move toward the fixed plate 530, thereby applying pressure to the elastic member 400. The elastic member 400 generates a thrust on the second transmission member 300, thereby causing the first transmission member 200 and the installation shaft 730 to rotate and generate a force in the opposite direction, thereby balancing the gravity during the opening process.

[0075] The vehicle according to the embodiment of the utility model comprises: the display screen device of the above embodiment, and the display screen device arranged in this way can use gravity to balance the opening and closing of the display screen 100, and save the occupied space of the roof.

[0076] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0077] In the description of the present utility model, "first feature" and "second feature" may include one or more of the features. In the description of the present utility model, "plurality" means two or more. In the description of the present utility model, the first feature "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact not directly but through another feature between them. In the description of the present utility model, the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

[0078] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0079] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A gravity balance mechanism for a display screen, characterized in that: include: A first transmission member, the first transmission member is adapted to be transmission-connected to the display screen and rotate with the display screen; a second transmission member, the second transmission member is in transmission cooperation with the first transmission member, and the second transmission member performs linear motion under the drive of the first transmission member; An elastic member is connected to the second transmission member and is suitable for abutting against a mounting carrier of the display screen, and the second transmission member compresses and releases the elastic member through its own linear movement.

2. The gravity balance mechanism of a display screen according to claim 1, characterized in that: The second transmission member performs linear motion along a tangent line at a location where the second transmission member cooperates with the first transmission member.

3. The gravity balance mechanism of a display screen according to claim 1, characterized in that: The first transmission member and the second transmission member are in transmission cooperation with each other through a tooth meshing structure.

4. The gravity balance mechanism of a display screen according to claim 1, characterized in that: The first transmission member is configured as a gear, and the second transmission member is configured as a rack, and the gear and the rack are meshed.

5. The gravity balance mechanism of a display screen according to claim 4, characterized in that: The gear is structured with a through hole penetrating along the axial direction of the gear, and the through hole is used for sleeve-mounting the rotating shaft of the display screen.

6. The gravity balance mechanism of a display screen according to claim 1, characterized in that: A limiting protrusion is arranged at one end of the second transmission member facing the elastic member, and the end of the elastic member is sleeved on the limiting protrusion.

7. The gravity balance mechanism of a display screen according to claim 1, characterized in that: The elastic member is configured as a helical spring.

8. A display screen device, characterized in that: include: A display screen, wherein the display screen is adapted to be rotatably mounted on a mounting carrier; A gravity balancing mechanism for a display screen according to any one of claims 1 to 7.

9. The display screen device according to claim 8, characterized in that: Also includes: The mounting structure is suitable for being mounted on a vehicle roof and serving as the mounting carrier, and the display screen is rotatably mounted on the mounting structure.

10. The display screen device according to claim 9, characterized in that: The mounting structure is formed with a mounting cavity and a receiving groove for receiving the display screen, and the gravity balancing mechanism is mounted in the mounting cavity.

11. The display screen device according to claim 10, characterized in that: The mounting structure comprises: A fixing plate, the fixing plate being suitable for being mounted on the vehicle roof, the elastic member being in contact with the fixing plate; A top cover is installed on the fixed plate, the top cover and the fixed plate jointly define the accommodating groove and the mounting cavity, the top cover is provided with a connecting hole connecting the accommodating groove and the mounting cavity, and the display screen is in transmission cooperation with the first transmission member through the connecting hole.

12. The display screen device according to claim 10, characterized in that: The installation cavity is arranged around the accommodating groove.

13. The display screen device according to claim 9, characterized in that: Also includes: An electromagnetic lock is arranged on the mounting structure and is used to lock the display screen at a current position.

14. The display screen device according to claim 8, characterized in that: Also includes: A driving mechanism is installed on the installation carrier and is located on one side of the display screen. A rotating shaft is provided on the one side of the display screen. The driving mechanism is in transmission connection with the rotating shaft to drive the display screen via the rotating shaft.

15. The display screen device according to claim 14, characterized in that: The driving mechanism comprises: A driving member, the driving member being mounted on the mounting carrier; A transmission assembly, the transmission assembly being in transmission connection with the driving member; The installation shaft is in transmission connection with the transmission assembly, and the installation shaft is installed on the rotating shaft and rotates synchronously with the rotating shaft.

16. The display screen device according to claim 15, characterized in that: The transmission assembly comprises: An input member, the input member being arranged on a driving shaft of the driving member; An output member is sleeved on the mounting shaft and is drivingly connected to the input member.

17. The display screen device according to claim 16, characterized in that: The input member is an input worm, and the output member is an output worm wheel; The transmission assembly also includes: an intermediate worm gear meshing with the input worm; An intermediate worm is disposed on the intermediate worm wheel and rotates synchronously with the intermediate worm wheel, and the intermediate worm is meshed with the output worm wheel.

18. The display screen device according to claim 16, characterized in that: The driving mechanism further comprises: A stop assembly, wherein the mounting shaft is provided with a first stop portion, the stop assembly is sleeved on the mounting shaft, the stop assembly and the first stop portion are spaced apart in the axial direction of the mounting shaft, and the output member is stopped between the first stop portion and the stop assembly.

19. The display screen device according to claim 18, characterized in that: The stopper assembly comprises: a stopper, the stopper being mounted on the mounting shaft; A sleeve, the sleeve is sleeved on the mounting shaft and is located on a side of the stopper facing the output member, the sleeve being configured with a second stopper for stopping the output member; An elastic pressure piece is sleeved on the sleeve and matched between the stopper and the second stopper.

20. The display screen device according to claim 19, characterized in that: The elastic pressure piece is constructed as a compression spring, the stop piece is a spring retaining ring, the mounting shaft is provided with a stop groove, and the spring retaining ring is clamped in the stop groove.

21. The display screen device according to claim 19, characterized in that: The stopper assembly further comprises: A first gasket is arranged between the elastic pressure piece and the stopper.

22. The display screen device according to claim 18, characterized in that: The driving mechanism further comprises: A plane bearing, the plane bearing is sleeved on the mounting shaft and is located on a side of the output member facing the stop assembly; A second gasket is disposed between the plane bearing and the stop assembly.

23. The display screen device according to claim 15, characterized in that: The mounting shaft is spline-matched with the rotating shaft.

24. The display screen device according to claim 14, characterized in that: Also includes: A sensor bracket, the sensor bracket is located on the other side of the display screen so as to be arranged on two opposite sides of the display screen with the driving mechanism, and the sensor bracket is installed on the rotating shaft on the other side of the display screen; An angular displacement sensor is disposed on the sensor bracket and is used to detect the rotation angle of the display screen.

25. A vehicle, characterized in that: include: The display screen device according to any one of claims 8 to 24.

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