Driving locking mechanism of vehicle-mounted display screen and vehicle-mounted display screen

Abstract

The utility model discloses a kind of drive locking mechanism of vehicle-mounted display screen and vehicle-mounted display screen, the vehicle-mounted display screen includes shell and the display screen body telescopic relative to it, the drive locking mechanism includes a drive source;One movement conversion device driven by the drive source;A locking mechanism;The movement conversion device is configured as: single rotation input received by it, synchronous conversion is first output and second output;The first output drives the display screen body to extend or retract the shell, the second output drives the locking mechanism action, to unlock or lock the display screen body.The utility model integrates two major functions of drive (telescopic) and lock (unlocking / locking) in a set mechanism, entire "extend-unlock" or "retract-lock" process can be automatically completed by one drive source, without user respectively operating, greatly improve user experience and automation degree.

Description

Technical Field

[0001] This utility model relates to the technical field of vehicle-mounted displays, and in particular to a drive locking mechanism for a vehicle-mounted display and a vehicle-mounted display. Background Technology

[0002] With the development of automotive intelligence, in-vehicle displays have become an important part of modern automobiles. To meet the needs of different usage scenarios and take into account the utilization of in-vehicle space, retractable in-vehicle displays have emerged, which can extend or retract the display body from the shell as needed.

[0003] Currently, the drive and locking mechanisms of existing retractable vehicle displays are mostly designed independently. Typically, a single motor drive system is used to extend and retract the display, with an additional independent electromagnetic or motor lock for locking the display in the retracted state and unlocking it before extension. This separate design has significant drawbacks: First, it requires two independent control systems and power sources, increasing structural complexity and manufacturing costs; second, the timing of the actions between the two mechanisms needs to be coordinated through electronic sensors and control units, reducing reliability and posing a risk of mechanism jamming or locking failure due to signal asynchrony; finally, the complex system occupies more interior space, hindering a compact layout. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] The technical problem this utility model aims to solve is to provide a drive locking mechanism for an in-vehicle display screen and an in-vehicle display screen, integrating the two major functions of driving (extension) and locking (unlocking / locking) into a single mechanism. The entire "extension-unlock" or "retraction-locking" process can be automatically completed through a single drive source, eliminating the need for separate user operations and greatly improving the user experience and automation level. Furthermore, the motion conversion device can synchronously convert a single input into two outputs, ensuring precise timing coordination between the extension and locking actions, and avoiding problems such as mechanism jamming, screen wear, or locking failure that may occur due to asynchronous actions.

[0006] (II) Technical Solution

[0007] The solution adopted by this utility model to solve the above-mentioned technical problem is a drive locking mechanism for a vehicle-mounted display screen. The vehicle-mounted display screen includes a housing and a display screen body that can extend and retract relative to it. The drive locking mechanism includes...

[0008] One driving source;

[0009] A motion conversion device driven by the aforementioned drive source;

[0010] One locked institution;

[0011] The motion conversion device is configured to synchronously convert a single rotational input it receives into a first output and a second output;

[0012] The first output drives the display body to extend or retract from the housing, and the second output drives the locking mechanism to unlock or lock the display body.

[0013] In some embodiments, the drive source includes a drive motor.

[0014] By adopting the above solution, the two major functions of driving (extension) and locking (unlock / lock) are integrated into a single mechanism. The entire "extend-unlock" or "retract-lock" process can be completed automatically through a single driving source, eliminating the need for separate user operations and greatly improving the user experience and automation level. It is clear that the motion conversion device can synchronously convert a single input into two outputs, ensuring the precise timing coordination between the extension and locking actions, and avoiding problems such as mechanism jamming, screen wear, or locking failure that may occur due to asynchronous actions.

[0015] In some embodiments, the motion conversion device includes a rotatable synchronous drive shaft, and the single rotational input is the rotational motion of the synchronous drive shaft about its own central axis.

[0016] In some embodiments, the synchronous drive shaft is arranged in the space behind the display body of the housing and is arranged relatively laterally.

[0017] The above solution uses a synchronous drive shaft as the core component for power transmission. It has a simple structure, mature technology, and can transmit torque efficiently and smoothly.

[0018] In some embodiments, the housing includes an outer frame with an opening and a rear housing rotatably connected to the outer frame at one end, and an elastic member is provided at the rotatable connection between the rear housing and the display screen body, with one end of the elastic member abutting against the display screen body and the other end abutting against the rear housing.

[0019] In some embodiments, the outer frame is relatively fixed, and two rotating shafts are provided at the rotatable connection between the bottom end of the display screen and the bottom end of the rear housing, with the elastic element sleeved on both rotating shafts; and the drive locking mechanism moves synchronously with the display screen body.

[0020] In some embodiments, the display body includes a push plate and a screen detachably connected to the push plate; wherein the push plate and the rear housing are rotatably connected.

[0021] Using the above solution, the elastic element provides the initial or auxiliary driving force for the pop-out of the display body. In conjunction with the driving source, the pop-out action is smoother and faster, and may reduce the power requirements of the driving source. After unlocking, the elastic force can automatically push the display body out a certain distance, making it convenient for users to pick it up. At the same time, the elastic element may also play a buffering role, reducing the impact of movement.

[0022] In some embodiments, the first output for driving the display screen body is achieved through a gear and rack transmission assembly, which includes a transmission gear disposed on the synchronous drive shaft and a transmission rack disposed on the rear housing that meshes with the transmission gear. Furthermore, the rotational movement of the synchronous drive shaft drives the transmission gear to rotate synchronously, and the rotation of the transmission gear, through its meshing with the transmission rack, drives the free end of the rear housing to flip away from the outer frame, thereby driving the elastic element to exert an outward force on the display screen body to extend out of the outer frame.

[0023] In some embodiments, the synchronous drive shaft is provided with transmission gears at both ends along its axial direction, and the rear housing is provided with a transmission rack above the transmission gears. When the synchronous drive shaft rotates in the first direction, it drives the transmission gears to rotate synchronously in the first direction, thereby driving the rear housing to flip backward relative to each other around the axis of rotation. The elastic element will then push the display body to flip forward relative to each other and extend out of the outer frame, so that the screen can be removed from the push plate. When the screen is not in use or needs to be charged, the screen is assembled onto the push plate, and the display body is pushed to flip backward relative to each other and pushed into the housing. During the process of the display body flipping backward, due to the meshing of the transmission gears and the transmission rack, the rear housing will be driven to flip forward relative to each other and return to its original position.

[0024] Using the above scheme, the gear and rack transmission can accurately convert rotational motion into linear motion (the flipping of the rear housing can be decomposed into linear components), with a constant transmission ratio, high efficiency, and good control precision; by synchronously driving the shaft to rotate forward and backward, the rear housing can be reliably flipped backward (screen retracts) and flipped forward (screen extends with the assistance of elastic elements), with reliable operation.

[0025] In some embodiments, the second output for driving the locking mechanism is implemented by a cam mechanism; the cam mechanism includes a cam that can be rotated by the synchronous drive shaft, the profile of the cam being configured to push the locking mechanism actuate when rotated.

[0026] The above solution uses a purely mechanical cam mechanism to transmit the motion of the drive shaft to the locking mechanism. No additional sensors or electronic control units are needed to control the locking timing. The structure is reliable and the cost is low. The profile of the cam can be precisely designed as needed to control the timing, speed and stroke of the locking mechanism, ensuring that the locking and unlocking actions occur at the most appropriate time.

[0027] In some embodiments, the locking mechanism includes:

[0028] The sliding claw, which is slidably disposed relative to the display screen body, has a locking position for locking the display screen body and an unlocking position for releasing the lock on the display screen body;

[0029] A pawl tension spring is used to provide a spring force to the pawl toward the locked position;

[0030] The cam acts on the sliding jaw to overcome the elastic force of the jaw spring and drive the sliding jaw to move along its sliding direction toward the unlocking position.

[0031] In some embodiments, a fixing member is fixed to the rear of the push plate by screws. The fixing member has an inwardly recessed end facing the push plate, forming a claw groove for limiting the linear movement of the sliding claw. One end of the claw tension spring is fixed to the sliding claw, and the other end is fixed to the fixing member. When the display body is pushed to flip outward, the cam is driven to rotate and push the sliding claw to move towards the unlock position along its sliding direction, during which the claw tension spring is stretched. When the display body is pushed to flip inward, the cam is driven to rotate in the opposite direction, and the rebound force of the claw spring will pull the sliding claw to move towards the locking position along its sliding direction to lock the screen.

[0032] In some embodiments, the rear end of the fixing member extends to form a rotating seat, and the synchronous drive shaft is rotatably connected to the rotating seat.

[0033] Using the above solution, the claw spring ensures that the sliding claw always tends to lock in the position when there is no external driving force, providing a fail-safe mechanism. Even if the drive mechanism fails, the sliding claw can return to the locked state under the action of the claw spring, preventing the screen from popping out accidentally, thus ensuring high safety. The thrust generated by the rotation of the cam overcomes the tension of the claw spring, realizing the conversion from rotational motion to linear motion and completing the "overcoming the spring force" action required for unlocking, which is ingenious. The claw groove ensures that the movement trajectory of the sliding claw is precise and avoids jamming.

[0034] In some embodiments, the number of sliding jaws is two, arranged at intervals along their sliding direction; the cam is arranged between the two sliding jaws.

[0035] The cam includes two protrusions, which are configured such that when the synchronous drive shaft drives the cam to rotate, the outer contour of the protrusions pushes the sliding pawl to move linearly.

[0036] Furthermore, when the cam rotates to the highest point of the protrusion and contacts the sliding claw, the sliding claw moves precisely to the unlocked position to release the lock of the display body.

[0037] In some embodiments, the push plate has perforations at both ends, and the sliding claw can extend out of the push plate through the perforations to lock or unlock the screen; the perforations are large enough along the sliding direction of the sliding claw to allow the sliding claw to move between the unlocked position and the locked position along the sliding direction.

[0038] In some embodiments, a cam pressure plate is fixed to the rear of the push plate between two fixing members by screws; the cam is placed in the space between the cam pressure plate and the push plate, and the cam rotates about its central axis; one end of the sliding pawl that is close to each other is provided with a protrusion that is always in contact with the outer contour of the cam; the outer contour of the protrusion gradually extends outward in the radial direction of the cam along the rotation direction of the cam; when the display body is pushed to flip outward, it drives the cam to rotate, so that the outer contour of the protrusion of the cam pushes the sliding pawl to move towards the unlocked position along its sliding direction, and during this process... During the process, the protrusion moves from the lowest point to the highest point along the outer contour of the protrusion, and when the protrusion contacts the highest point of the protrusion, the sliding pawl moves to the unlocking position to release the lock of the display body; when the display body is pushed to flip inward, the cam is driven to rotate in the opposite direction, and the rebound force of the pawl spring will pull the sliding pawl to move towards the locking position along its sliding direction. During this process, the protrusion moves from the highest point to the lowest point along the outer contour of the protrusion, and when the protrusion contacts the lowest point of the protrusion, the sliding pawl moves to the locking position to lock the display body.

[0039] By adopting the above scheme, the dual sliding claw design can lock and unlock simultaneously from both sides of the screen, making the force more balanced and avoiding the problems of jamming, wear, or unstable screen installation that may occur with single-point locking. One cam drives two sliding claws at the same time, ensuring the absolute synchronization of the movement of the two sliding claws and further improving the reliability and stability of locking. Through the precise design of the highest and lowest points of the cam profile, the unlocking and locking positions of the sliding claws can be accurately defined, resulting in high control precision.

[0040] In some embodiments, the synchronous drive shaft drives the cam to rotate via a bevel gear transmission assembly, the bevel gear transmission assembly including...

[0041] A synchronous bevel gear disposed on the synchronous drive shaft;

[0042] A drive bevel gear is disposed on the cam, and the drive bevel gear meshes with the synchronous bevel gear;

[0043] The rotational motion of the synchronous drive shaft is transmitted to the drive bevel gear via the synchronous bevel gear, thereby driving the cam to rotate.

[0044] In some embodiments, the drive bevel gear is arranged at the end of the cam pressure plate away from the push plate. The drive bevel gear is adapted to the cam pressure plate via a shaft portion, and the cam is fixed on the shaft portion to achieve synchronous rotation of the drive bevel gear and the cam. The synchronous drive shaft is arranged with the synchronous bevel gear near the drive bevel gear. Furthermore, the synchronous drive shaft is integrally formed on the synchronous drive shaft. Moreover, the central axis of the synchronous drive shaft and the central axis of the cam are perpendicular to each other.

[0045] In some embodiments, a gear is engaged on the synchronous drive shaft, and a damper is fixed to the rear end of a fixture near the gear, with the gear and the damper meshing.

[0046] By adopting the above scheme, the meshing of the synchronous bevel gear and the drive bevel gear can convert the rotational motion of the synchronous drive shaft around its own central axis into the rotational motion of the cam around its own central axis, which solves the problem of power transmission between components in different directions and increases the flexibility of the mechanism layout; the damper provides damping, making the motion smoother and reducing vibration and noise.

[0047] In some embodiments, when the synchronous drive shaft rotates along a first direction, the first output drives the display body to extend out of the housing, and the second output drives the locking mechanism to unlock; when the synchronous drive shaft rotates along a second direction opposite to the first direction, the first output drives the display body to retract into the housing, and then the second output drives the locking mechanism to lock.

[0048] By adopting the above scheme, the action sequence corresponding to different rotation directions is clarified to avoid misoperation, namely the complete working cycle of "forward rotation → extend + unlock" and "reverse rotation → retract → lock".

[0049] The solution adopted by this utility model to solve the above-mentioned technical problems is a vehicle-mounted display screen, including a drive locking mechanism for a vehicle-mounted display screen as described above; the vehicle-mounted display screen includes a housing and a display screen body that can extend and retract relative to it; the drive locking mechanism can drive the display screen body to extend or retract from the housing; and, during the process of driving the display screen body to extend from the housing, the locking mechanism can be driven to unlock the display screen body; during the process of driving the display screen body to retract from the housing, the locking mechanism can be driven to lock the display screen body.

[0050] In some embodiments, the rear end of the cam plate extends to form a locking tongue, and the rear housing is provided with a switch lock for locking the locking tongue. When the display body is retracted into the housing, the locking tongue is locked to the switch lock. When pressure is applied to the display body, the display body drives the drive locking mechanism to flip backward, and the cam plate flips backward synchronously, thereby driving the locking tongue to move and unlock from the switch lock, thus releasing the lock between the rear housing and the display body. The rotation of the synchronous drive shaft can drive the rear housing to flip, thereby driving the display body to flip and extend out of the housing. When the screen is not in use or needs to be charged, the screen is assembled onto the push plate, and the display body is pushed to flip backward and push into the housing, while the locking tongue moves towards the switch lock until the locking tongue moves and locks in the switch lock, thereby achieving the lock between the display body and the rear housing.

[0051] Specifically, the damper provides resistance to movement, making the extension and retraction of the display body smoother and gentler, avoiding rapid pop-out or impact, and enhancing the sense of luxury and user experience; the cooperation between the switch lock and the latch provides an additional level of mechanical locking security mechanism; after the display body is completely retracted into the housing, the latch of the locking mechanism itself is locked by the switch lock on the rear housing, ensuring that the entire extension system will not be accidentally activated due to accidental touch or vibration in vibration environments such as vehicle driving, thus providing double protection for safety.

[0052] (III) Beneficial Effects

[0053] Compared with the prior art, this utility model designs a drive locking mechanism for an in-vehicle display screen and an in-vehicle display screen.

[0054] (1) This utility model integrates the two major functions of driving (extension) and locking (unlocking / locking) into one mechanism. The entire process of "extending-unlocking" or "retracting-locking" can be completed automatically through one driving source without the need for separate operation by the user, which greatly improves the user experience and automation level. It clarifies that the motion conversion device can synchronously convert a single input into two outputs, ensuring the precise timing of the extension and locking actions, and avoiding problems such as mechanism jamming, screen wear or locking failure that may be caused by asynchronous actions.

[0055] (2) The elastic element of this utility model provides an initial or auxiliary driving force for the pop-out of the display screen body. In conjunction with the driving source, the pop-out action is smoother and faster, and may reduce the power requirements of the driving source. After unlocking, the elastic force can automatically push the display screen body a distance, making it convenient for the user to pick it up. At the same time, the elastic element may also play a buffering role to reduce the impact of movement.

[0056] (3) The gear and rack transmission of this utility model can accurately convert rotational motion into linear motion (the flipping of the rear housing can be decomposed into linear components), with a constant transmission ratio, high efficiency, and good control precision; by synchronously driving the shaft to rotate forward and backward, the rear housing can be reliably flipped backward (screen retracted) and flipped forward (screen extended with the assistance of elastic elements), and the action is reliable; a purely mechanical cam mechanism is used to transmit the motion of the drive shaft to the locking mechanism, without the need for additional sensors and electronic control units to control the locking timing, the structure is reliable and the cost is low; the profile of the cam can be precisely designed as needed to control the timing, speed and stroke of the locking mechanism, ensuring that the locking and unlocking actions occur at the most appropriate time;

[0057] (4) The claw spring of this utility model ensures that the sliding claw always tends to lock when there is no external force driving it, providing a fail-safe mechanism. Even if the drive mechanism fails, the sliding claw can return to the locked state under the action of the claw spring, preventing the screen from popping out unexpectedly, which is highly safe. The thrust generated by the rotation of the cam is used to overcome the tension of the claw spring, realizing the conversion from rotational motion to linear motion, and completing the "overcoming the spring force" action required for unlocking. The design is ingenious. The claw groove ensures that the movement trajectory of the sliding claw is accurate and avoids jamming.

[0058] (5) The present invention adopts a double sliding claw design, which can lock and unlock simultaneously from both sides of the screen, making the force more balanced and avoiding the problems of jamming, wear or unstable screen installation that may occur with single-point locking; one cam drives two sliding claws at the same time, ensuring the absolute synchronization of the movement of the two sliding claws, further improving the reliability and stability of locking; through the precise design of the highest and lowest points of the cam profile, the unlocking position and locking position of the sliding claws can be accurately defined, and the control precision is high.

[0059] (6) This utility model can convert the rotational motion of the synchronous drive shaft around its own central axis into the rotational motion of the cam around its own central axis by meshing the synchronous bevel gear and the drive bevel gear, thus solving the problem of power transmission between components in different directions and increasing the flexibility of the mechanism layout; the damper provides damping, making the motion smoother and reducing vibration and noise.

[0060] (7) This utility model provides motion resistance through a damper, making the telescopic movement of the display body more stable and gentle, avoiding rapid pop-out or impact, and enhancing the sense of luxury and user experience; the cooperation between the switch lock and the locking tongue provides an additional mechanical locking safety mechanism; after the display body is completely retracted into the housing, the locking tongue of the locking mechanism itself is locked by the switch lock on the rear housing, ensuring that the entire telescopic system will not be accidentally activated due to accidental touch or vibration in vibration environments such as vehicle driving, and the safety is doubly guaranteed. Attached Figure Description

[0061] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0062] Figure 1 This is a schematic diagram of the structure of a vehicle-mounted display screen according to the present invention;

[0063] Figure 2 This is a schematic diagram of another angle of the structure of a vehicle-mounted display screen according to this utility model;

[0064] Figure 3 This is a plan view of a vehicle-mounted display screen according to the present invention;

[0065] Figure 4 for Figure 3 Sectional view at point AA;

[0066] Figure 5 for Figure 3 Sectional view at point BB;

[0067] Figure 6 for Figure 3 Sectional view at CC;

[0068] Figure 7 This is a cross-sectional view of a vehicle-mounted display screen according to the present invention;

[0069] Figure 8 This is a schematic diagram of the drive locking mechanism for a vehicle-mounted display screen according to the present invention.

[0070] Figure 9 This is a schematic diagram of the drive locking mechanism for a vehicle display screen according to the present invention (the sliding claw is in the locking position that locks the display screen body).

[0071] Figure 10 This is a schematic diagram of the drive locking mechanism of a vehicle display screen according to the present invention (the sliding claw is in the unlocked position to release the lock of the display screen body).

[0072] Figure 11 This is a schematic diagram of the cam structure of this utility model.

[0073] The component names corresponding to the various reference numerals in the figure are as follows: 100, housing; 101, outer frame; 102, rear housing; 1021, transmission rack; 103, switch lock; 200, display screen body; 201, push plate; 2011, perforation; 202, screen; 300, synchronous drive shaft; 301, transmission gear; 302, synchronous bevel gear; 303, gear; 400, locking mechanism; 401, sliding pawl; 4011, protrusion; 402, pawl tension spring; 500, elastic element; 501, rotating shaft; 600, cam; 601, protrusion; 6011, highest point; 6012, lowest point; 700, drive bevel gear; 701, shaft; 800, fixing element; 801, pawl slide groove; 802, rotating seat; 900, cam pressure plate; 901, damper; 902, locking tongue. Detailed Implementation

[0074] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but should not be used to limit the scope of this utility model.

[0075] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0076] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0077] It should be noted that the following description covers various aspects of embodiments within the scope of the appended claims. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0078] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The drawings only show the components related to this application and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0079] Additionally, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that practice can be carried out without these specific details.

[0080] The technical solutions provided by the various embodiments of this application are described below with reference to the accompanying drawings.

[0081] like Figures 1-11As shown, this utility model provides a drive locking mechanism for an in-vehicle display screen. The in-vehicle display screen includes a housing 100 and a display body 200 that is retractable relative to it. The drive locking mechanism includes a drive source (not shown); a motion conversion device driven by the drive source; and a locking mechanism 400. The motion conversion device is configured to synchronously convert a single rotational input it receives into a first output and a second output. The first output drives the display body 200 to extend or retract from the housing 100, and the second output drives the locking mechanism 400 to unlock or lock the display body 200. In some embodiments, the drive source includes a drive motor. By adopting the above solution, the two major functions of driving (extension) and locking (unlock / lock) are integrated into a single mechanism. The entire "extend-unlock" or "retract-lock" process can be completed automatically through a single driving source, eliminating the need for separate user operations and greatly improving the user experience and automation level. It is clear that the motion conversion device can synchronously convert a single input into two outputs, ensuring the precise timing coordination between the extension and locking actions, and avoiding problems such as mechanism jamming, screen 202 wear, or locking failure that may occur due to asynchronous actions.

[0082] In some embodiments, the motion conversion device includes a rotatable synchronous drive shaft 300, and the single rotational input is the rotational motion of the synchronous drive shaft 300 about its own central axis. In some embodiments, the synchronous drive shaft 300 is arranged in the space behind the display screen body 200 of the housing 100, and is arranged relatively laterally. Using the above solution, the synchronous drive shaft 300 is used as the core component for power transmission, resulting in a simple structure, mature technology, and efficient and stable torque transmission. In some embodiments, the housing 100 includes an outer frame 101 with an opening, and a rear housing 102 rotatably connected to the outer frame 101 at one end. An elastic member 500 is provided at the rotatable connection between the rear housing 102 and the display screen body 200, with one end of the elastic member 500 abutting against the display screen body 200 and the other end abutting against the rear housing 102. In some embodiments, the outer frame 101 is relatively fixedly arranged, and two rotating shafts 501 are provided at the rotatable connection between the bottom end of the display screen and the bottom end of the rear housing 102. The elastic element 500 is sleeved on each of the two rotating shafts 501. Furthermore, the drive locking mechanism and the display screen body 200 move synchronously. In some embodiments, the display screen body 200 includes a push plate 201 and a screen 202 detachably connected to the push plate 201; wherein the push plate 201 and the rear housing 102 are rotatably connected. Using the above scheme, the elastic element 500 provides initial or auxiliary driving force for the pop-out of the display screen body 200. In conjunction with the drive source, this makes the pop-out action smoother and faster, and may reduce the power requirements of the drive source. After unlocking, the elastic force can automatically push the display screen body 200 a certain distance, making it convenient for the user to retrieve. Simultaneously, the elastic element 500 may also act as a buffer, reducing the impact of movement.

[0083] In some embodiments, the first output for driving the display body 200 is achieved through a gear 303 rack and pinion transmission assembly. The gear 303 rack and pinion transmission assembly includes a transmission gear 301 disposed on the synchronous drive shaft 300 and a transmission rack 1021 disposed on the rear housing 102 meshing with the transmission gear 301. Furthermore, the rotational movement of the synchronous drive shaft 300 drives the transmission gear 301 to rotate synchronously. The rotation of the transmission gear 301, through its meshing with the transmission rack 1021, drives the free end of the rear housing 102 to flip away from the outer frame 101, thereby driving the elastic member 500 to exert an outward force on the display body 200 to extend out of the outer frame 101. In some embodiments, the synchronous drive shaft 300 is provided with transmission gears 301 at both ends along its axial direction, and the rear housing 102 is provided with transmission racks 1021 above the transmission gears 301. When the synchronous drive shaft 300 rotates in the first direction, it drives the transmission gears 301 to rotate synchronously in the first direction, thereby driving the rear housing 102 to flip backward relative to each other around the pivot 501. The elastic element 500 will push the display body 200 to flip forward relative to each other and extend out of the outer frame 101, so that the screen 202 can be removed from the push plate 201. When the screen 202 is not in use or needs to be charged, the screen 202 is assembled onto the push plate 201, and the display body 200 is pushed to flip backward relative to each other and pushed into the housing 100. During the process of the display body 200 flipping backward, due to the meshing of the transmission gears 301 and the transmission racks 1021, the rear housing 102 will be driven to flip forward relative to each other and return to its original position. Using the above scheme, the gear 303 rack and pinion transmission can accurately convert rotational motion into linear motion (the flipping of the rear housing 102 can be decomposed into linear components), with a constant transmission ratio, high efficiency, and good control precision; by the forward and reverse rotation of the synchronous drive shaft 300, the "reverse flipping" (screen 202 retracts) and "forward flipping" (screen 202 extends with the assistance of the elastic element 500) of the rear housing 102 can be reliably realized, and the operation is reliable.

[0084] In some embodiments, the second output for driving the locking mechanism 400 is achieved through a cam 600 mechanism; the cam 600 mechanism includes a cam 600 that can be rotated by the synchronous drive shaft 300, and the profile of the cam 600 is configured to push the locking mechanism 400 to move when rotated. Using the above solution, a purely mechanical cam 600 mechanism transmits the motion of the drive shaft to the locking mechanism 400, eliminating the need for additional sensors and electronic control units to control the locking timing. This approach is reliable and cost-effective; the profile of the cam 600 can be precisely designed as needed to control the timing, speed, and stroke of the locking mechanism 400's movement, ensuring that locking and unlocking actions occur at the most appropriate times. In some embodiments, the locking mechanism 400 includes: a sliding claw 401 slidably disposed relative to the display body 200, having a locked position for locking the display body 200 and an unlocked position for releasing the lock of the display body 200; a claw tension spring 402 for providing a spring force to the claw toward the locked position; wherein, the cam 600 acts on the sliding claw 401 to overcome the spring force of the claw tension spring 402 to drive the sliding claw 401 to move toward the unlocked position along its sliding direction. In some embodiments, a fixing member 800 is fixed to the rear of the push plate 201 by screws. One end of the fixing member 800 facing the push plate 201 is recessed inward to form a claw groove 801 for limiting the linear movement of the sliding claw 401. One end of the claw tension spring 402 is fixed to the sliding claw 401, and the other end is fixed to the fixing member 800. When the display screen body 200 is pushed to flip outward, the cam 600 is driven to rotate, pushing the sliding claw 401 along its sliding direction towards the unlocked position, during which the claw tension spring 402 is stretched. When the display screen body 200 is pushed to flip inward, the cam 600 is driven to rotate in the opposite direction, and the rebound force of the claw spring pulls the sliding claw 401 along its sliding direction towards the locked position to lock the screen 202. In some embodiments, a rotating seat 802 extends from the rear end of the fixing member 800, and the synchronous drive shaft 300 is rotatably connected to the rotating seat 802. Using the above scheme, the claw spring 402 ensures that the sliding claw 401 always tends to lock when there is no external driving force, providing a fail-safe mechanism. Even if the drive mechanism fails, the sliding claw 401 can return to the locked state under the action of the claw spring 402, preventing the screen 202 from popping out accidentally, thus ensuring high safety. The thrust generated by the rotation of the cam 600 overcomes the tension of the claw spring 402, realizing the conversion from rotational motion to linear motion and completing the "overcoming the spring force" action required for unlocking, which is ingeniously designed. The claw groove 801 ensures that the movement trajectory of the sliding claw 401 is accurate and avoids jamming.In some embodiments, there are two sliding claws 401, arranged at intervals along their sliding direction; the cam 600 is arranged between the two sliding claws 401; the cam 600 includes two protrusions 601, which are configured such that when the synchronous drive shaft 300 drives the cam 600 to rotate, the outer contour of the protrusion 601 pushes the sliding claw 401 to move linearly; and when the cam 600 rotates to the highest point 6011 of the protrusion 601 and contacts the sliding claw 401, the sliding claw 401 moves to the unlocked position to release the lock of the display body 200. In some embodiments, the push plate 201 has through holes 2011 at both ends, and the claw of the sliding claw 401 can extend out of the push plate 201 through the through holes 2011 to lock or unlock the screen 202; the through holes 2011 are large enough along the sliding direction of the sliding claw 401 to allow the sliding claw 401 to move between the unlocked position and the locked position along the sliding direction. In some embodiments, a cam pressure plate 900 is fixed to the rear of the push plate 201 between two fixing members 800 by screws; the cam 600 is placed in the space between the cam pressure plate 900 and the push plate 201, and the cam 600 rotates about its central axis; one end of the sliding claw 401 that is close to each other is provided with a protrusion 4011 that is always in contact with the outer contour of the cam 600; the outer contour of the protrusion 601 gradually extends outward in the radial direction of the cam 600 along the rotation direction of the cam 600; when the display body 200 is pushed to flip outward, it drives the cam 600 to rotate, so that the outer contour of the protrusion 601 of the cam 600 pushes the sliding claw 401 to move towards the unlock position along its sliding direction, and in this process, the protrusion 4011 moves from the lowest point 6012 to the highest point 6011 along the outer contour of the protrusion 601. When the protrusion 4011 contacts the highest point 6011 of the protrusion 601, the sliding claw 401 moves to the unlocked position to release the lock of the display body 200. When the display body 200 is pushed to flip inward, the cam 600 is driven to rotate in the opposite direction. The rebound force of the claw spring will pull the sliding claw 401 to move towards the locked position along its sliding direction. During this process, the protrusion 4011 moves from the highest point 6011 to the lowest point 6012 along the outer contour of the protrusion 601. When the protrusion 4011 contacts the lowest point of the protrusion 601, the sliding claw 401 moves to the locked position to lock the display body 200.By adopting the above scheme, the design of the dual sliding claws 401 can lock and unlock simultaneously from both sides of the screen 202, making the force more balanced and avoiding the problems of jamming, wear, or unstable installation of the screen 202 that may occur with single-point locking. One cam 600 drives two sliding claws 401 at the same time, ensuring the absolute synchronization of the movement of the two sliding claws 401, further improving the reliability and stability of locking. Through the precise design of the highest point 6011 and the lowest point 6012 of the cam 600 profile, the unlocking position and locking position of the sliding claws 401 can be accurately defined, resulting in high control precision.

[0085] In some embodiments, the synchronous drive shaft 300 drives the cam 600 to rotate via a bevel gear 303 transmission assembly. The bevel gear 303 transmission assembly includes a synchronous bevel gear 302 disposed on the synchronous drive shaft 300 and a drive bevel gear 700 disposed on the cam 600. The drive bevel gear 700 meshes with the synchronous bevel gear 302. The rotational motion of the synchronous drive shaft 300 is transmitted to the drive bevel gear 700 via the synchronous bevel gear 302, thereby driving the cam 600 to rotate. In some embodiments, the drive bevel gear 700 is arranged at one end of the cam plate 900 away from the push plate 201. The drive bevel gear 700 is adapted to the cam plate 900 via a shaft portion 701. The cam 600 is fixed to the shaft portion 701 to achieve synchronous rotation of the drive bevel gear 700 and the cam 600. The synchronous drive shaft 300 has the synchronous bevel gear 302 arranged near the drive bevel gear 700. The synchronous drive shaft 300 is integrally formed on the synchronous drive shaft 300. The central axis of the synchronous drive shaft 300 and the central axis of the cam 600 are perpendicular to each other. In some embodiments, a gear 303 is engaged on the synchronous drive shaft 300. A damper 901 is fixed to the rear end of the fixing member 800 near the gear 303. The gear 303 and the damper 901 mesh. Using the above scheme, the meshing of the synchronous bevel gear 302 and the drive bevel gear 700 can convert the rotational motion of the synchronous drive shaft 300 around its own central axis into the rotational motion of the cam 600 around its own central axis, solving the problem of power transmission between components in different directions and increasing the flexibility of the mechanism layout; the damper 901 provides damping, making the motion smoother and reducing vibration and noise.

[0086] In some embodiments, when the synchronous drive shaft 300 rotates along a first direction, the first output drives the display body 200 to extend out of the housing 100, and the second output drives the locking mechanism 400 to unlock; when the synchronous drive shaft 300 rotates along a second direction opposite to the first direction, the first output drives the display body 200 to retract into the housing 100, and then the second output drives the locking mechanism 400 to lock. By adopting the above scheme, the action sequence corresponding to different rotation directions is clearly defined, avoiding misoperation, i.e., a complete working cycle of "forward rotation → extension + unlocking" and "reverse rotation → retraction → locking".

[0087] like Figures 1-11As shown, this utility model provides a vehicle-mounted display screen, including a drive locking mechanism for the vehicle-mounted display screen as described above; the vehicle-mounted display screen includes a housing 100 and a display screen body 200 that can extend and retract relative to it; the drive locking mechanism can drive the display screen body 200 to extend or retract from the housing 100; and, during the process of driving the display screen body 200 to extend from the housing 100, the locking mechanism 400 can be driven to operate to unlock the display screen body 200; during the process of driving the display screen body 200 to retract from the housing 100, the locking mechanism 400 can be driven to operate to lock the display screen body 200. In some embodiments, the rear end of the cam plate 900 extends to form a locking tongue 902, and the rear housing 102 is provided with a switch lock 103 for locking the locking tongue 902; when the display screen body 200 is retracted into the housing 100, the locking tongue 902 is locked onto the switch lock 103; when pressure is applied to the display screen body 200, the display screen body 200 drives the drive locking mechanism to flip backward, and the cam plate 900 flips backward simultaneously, thereby driving the locking tongue 902 to move and unlock from the switch lock 103, thereby releasing the rear housing 102 and the display... The locking between the screen bodies 200 is achieved by rotating the synchronous drive shaft 300 to drive the rear housing 102 to flip, thereby driving the display body 200 to flip and extend out of the housing 100. When the screen 202 is not in use or needs charging, the screen 202 is assembled onto the push plate 201, and the display body 200 is pushed to flip backward and into the housing 100. Simultaneously, the locking tongue 902 is moved toward the switch lock 103 until the locking tongue 902 moves and locks in the switch lock 103, thereby achieving the locking between the display body 200 and the rear housing 102. Specifically, the damper 901 provides motion resistance, making the telescopic movement of the display body 200 smoother and gentler, avoiding rapid pop-out or impact, and enhancing the sense of luxury and user experience; the cooperation between the switch lock 103 and the locking tongue 902 provides an additional mechanical locking safety mechanism; after the display body 200 is completely retracted into the housing 100, the locking tongue 902 of the drive locking mechanism is locked by the switch lock 103 on the rear housing 102, ensuring that the entire telescopic system will not be accidentally activated due to accidental touch or vibration in vibration environments such as vehicle driving, and the safety is doubly guaranteed.

[0088] The same or similar parts between the various embodiments in this specification can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments.

[0089] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A driving locking mechanism of a vehicle display screen, the vehicle display screen comprising a housing (100) and a display screen body (200) which is telescopic relative to the housing, characterized in that: The drive locking mechanism includes One driving source; A motion conversion device driven by the aforementioned drive source; A locking mechanism (400); The motion conversion device is configured to synchronously convert a single rotational input it receives into a first output and a second output; The first output drives the display body (200) to extend or retract the housing (100), and the second output drives the locking mechanism (400) to unlock or lock the display body (200).

2. The drive lock mechanism for a vehicle display screen of claim 1, wherein: The motion conversion device includes a rotatable synchronous drive shaft (300), and the single rotational input is the rotational motion of the synchronous drive shaft (300) about its own central axis.

3. The drive lock mechanism for a vehicle display screen of claim 2, wherein: The housing (100) includes an outer frame (101) with an opening and a rear housing (102) rotatably connected to the outer frame (101) at one end. An elastic element (500) is provided at the rotatable connection between the rear housing (102) and the display screen body (200). One end of the elastic element (500) abuts against the display screen body (200), and the other end abuts against the rear housing (102).

4. The drive lock mechanism for a vehicle display screen of claim 3, wherein: The first output for driving the display body (200) is realized by a gear (303) rack and pinion transmission assembly. The gear (303) rack and pinion transmission assembly includes a transmission gear (301) disposed on the synchronous drive shaft (300) and a transmission rack (1021) disposed on the rear housing (102) meshing with the transmission gear (301). The rotational motion of the synchronous drive shaft (300) drives the transmission gear (301) to rotate synchronously. The rotation of the transmission gear (301) drives the free end of the rear housing (102) to flip away from the outer frame (101) through its meshing with the transmission rack (1021), so as to drive the elastic member (500) to give the display body (200) an outward force to extend out of the outer frame (101).

5. The drive locking mechanism for the vehicle-mounted display screen according to any one of claims 2-4, characterized in that: The second output for driving the locking mechanism (400) is achieved by a cam (600) mechanism; the cam (600) mechanism includes a cam (600) that can be rotated by the synchronous drive shaft (300), the profile of the cam (600) being configured to push the locking mechanism (400) actuate when rotated.

6. The drive locking mechanism for the vehicle-mounted display screen according to claim 5, characterized in that: The locking mechanism (400) includes: The sliding claw (401) is slidably disposed relative to the display body (200), and has a locking position for locking the display body (200) and an unlocking position for releasing the lock of the display body (200); A claw spring (402) is used to provide a spring force to the claw toward the locked position; The cam (600) acts on the sliding pawl (401) to overcome the elastic force of the pawl tension spring (402) and drive the sliding pawl (401) to move towards the unlock position along its sliding direction.

7. The drive locking mechanism for the vehicle-mounted display screen according to claim 6, characterized in that: The number of sliding jaws (401) is two, and they are arranged at intervals along their sliding direction; the cam (600) is arranged between the two sliding jaws (401); The cam (600) includes two protrusions (601), which are configured such that when the synchronous drive shaft (300) drives the cam (600) to rotate, the outer contour of the protrusions (601) pushes the sliding pawl (401) to move linearly. Furthermore, when the cam (600) rotates to the highest point (6011) of the protrusion (601) and contacts the sliding claw (401), the sliding claw (401) moves precisely to the unlock position to release the lock of the display body (200).

8. The drive lock mechanism for a vehicle display screen of claim 5, wherein: The synchronous drive shaft (300) drives the cam (600) to rotate via a bevel gear (303) transmission assembly, which includes... A synchronous bevel gear (302) is disposed on the synchronous drive shaft (300); A drive bevel gear (700) is disposed on the cam (600), and the drive bevel gear (700) meshes with the synchronous bevel gear (302); The rotational motion of the synchronous drive shaft (300) is transmitted to the drive bevel gear (700) via the synchronous bevel gear (302), thereby driving the cam (600) to rotate.

9. The drive lock mechanism for a vehicle display screen of claim 2, wherein: When the synchronous drive shaft (300) rotates in the first direction, the first output drives the display body (200) to extend out of the housing (100), and the second output drives the locking mechanism (400) to unlock; when the synchronous drive shaft (300) rotates in the second direction opposite to the first direction, the first output drives the display body (200) to retract into the housing (100), and then the second output drives the locking mechanism (400) to lock.

10. A vehicle-mounted display screen, characterized in that: The present invention includes a drive locking mechanism for a vehicle display screen as described in any one of claims 1-9 above; the vehicle display screen includes a housing (100) and a display screen body (200) that is retractable relative to it; the drive locking mechanism is capable of driving the display screen body (200) to extend or retract from the housing (100); and, in the process of driving the display screen body (200) to extend from the housing (100), the locking mechanism (400) is capable of being activated to unlock the display screen body (200); in the process of driving the display screen body (200) to retract from the housing (100), the locking mechanism (400) is capable of being activated to lock the display screen body (200).

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