A lifting rotary display screen support device and a vehicle-mounted display system

Abstract

The application provides a lifting and rotating display screen support device, belonging to the technical field of vehicle parts, and comprising: a fixed base; a driving sliding block, which is slidably installed on the fixed base and is provided with a rack; a lifting frame, which is slidably connected with the fixed base, and the sliding direction of the driving sliding block is parallel to that of the lifting frame; a load support, which is rotatably connected with the lifting frame through a rotating shaft, the rotating shaft is provided with a gear, the gear is fixed in the circumferential direction of the load support, and the gear is engaged with the rack; and a driving element, which is connected with the driving sliding block; the application has the beneficial effects that: the compound action of lifting and turning is sequentially completed by a single driving source through mechanical logic, which can effectively reduce the thickness and space occupation of the mechanism in the narrow slot of the vehicle-mounted handrail, reduces the hardware cost, fundamentally avoids the screen interference and collision risk caused by the out-of-step of multiple power sources, and improves the operation reliability of the system.

Description

Technical Field

[0001] This invention belongs to the field of automotive parts technology, and relates to a lifting and rotating display screen bracket device and an in-vehicle display system. Background Technology

[0002] With the rapid development of intelligent cockpits and in-vehicle entertainment systems, independent rear-seat displays have become a core feature in mid-to-high-end models to enhance their sense of luxury and technology. To maintain the tidiness of the interior space and protect the screen when not in use, storing the display in the center armrest or the dashboard has become an industry trend.

[0003] However, in practical applications, such retractable display brackets face severe spatial conflicts and functional contradictions. To avoid compromising cabin comfort, the lateral width of vehicle armrests (especially the rear center armrest) is designed to be extremely limited. This means that when retracted, the display cannot be horizontally embedded in a view that conforms to human visual habits; instead, it must be vertically inserted into a narrow slot inside the armrest in a long, narrow, upright position. However, when passengers are actually watching videos or interacting with the device, a horizontal orientation provides a better sense of immersion and ergonomics. Therefore, the bracket device must be capable of converting the screen from a vertical retraction to a horizontal display, i.e., performing a precise 90-degree rotation after being raised.

[0004] However, existing technologies typically require two independent drive sources and corresponding transmission systems to implement this motion logic. This not only makes the support structure bulky and reduces the extremely limited storage space within the handrail, but also significantly increases the system's design cost. More importantly, the dual-power-source drive scheme has extremely high requirements for control synchronization. If the rotation is triggered before the lifting stroke is fully completed, the display screen will directly collide and interfere severely with the edge of the handrail opening, causing damage to the internal mechanical structure or the screen itself. Furthermore, existing mechanisms also struggle to automatically switch motion modes through mechanical logic under a single drive source. They cannot guarantee that after the drive slider synchronously raises the lifting frame, it can smoothly complete motion decoupling and precisely control the load support to flip. Summary of the Invention

[0005] The purpose of this invention is to address the aforementioned problems in the existing technology by proposing a lifting and rotating display screen bracket device and a vehicle-mounted display system.

[0006] The objective of this invention can be achieved through the following technical solution: a lifting and rotating display screen support device, comprising: Fixed base; A drive slider is slidably mounted on the fixed base, and the drive slider is provided with a rack; A lifting frame, wherein the lifting frame is slidably connected to the fixed base, and the driving slider is parallel to the sliding direction of the lifting frame; A load support is rotatably connected to the lifting frame via a rotating shaft. The rotating shaft is equipped with a gear, which is circumferentially fixed to the load support and meshes with the rack. A driving element connected to the driving slider, the driving element being configured to drive the driving slider to slide; The load support has a first state and a second state, and the stroke position of the drive slider determines whether the load support is in the first state or the second state. In the first state, the load support is located inside the fixed base and circumferentially locked to the lifting frame, the rack and the circumferentially locked gear remain relatively fixed, and the drive slider, the lifting frame and the load support form a synchronous motion structure; In the second state, the load support extends out of the fixed base and releases its circumferential lock with the lifting frame. The drive slider is allowed to slide relative to the lifting frame, and the displacement of the drive slider relative to the lifting frame is converted into the rotation angle of the load support relative to the lifting frame through the meshing transmission of the gear and the rack.

[0007] Preferably, the stroke positions of the drive slider include a first position, a second position, and a third position; a lifting drive range is defined between the first position and the second position, and a rotation drive range is defined between the second position and the third position; When the drive slider is in the lifting drive zone, the load support is in the first state, and the displacement of the drive slider is linearly mapped to the displacement of the load support. When the drive slider is in the rotation drive range, the load support is in the second state, the lifting frame remains fixed relative to the fixed base, and the displacement of the drive slider relative to the lifting frame and the rotation angle of the load support are linearly mapped through the meshing ratio of the gear and the rack.

[0008] Preferably, the lifting frame has a limiting block for limiting its lifting limit position; when the drive slider is in the second position, the limiting block and the fixed base form a physical abutment to limit the lifting frame to the lifting limit position; when the drive slider is in the rotation drive range and tends towards the third position, the limiting block and the fixed base cooperate to limit the lifting frame from exceeding the lifting limit position.

[0009] Preferably, one side of the lifting frame is provided with an elastic locking strip, which has a retracted position that does not protrude from the side of the lifting frame and an extended position that protrudes from the side of the lifting frame. The elastic locking strip is configured to have a tendency to move towards the extended position. When the drive slider is located in the lifting drive range, the elastic locking strip is constrained to the retracted position. When the drive slider slides from the second position to the third position, the elastic locking strip moves from the retracted position to the extended position. And when the elastic locking strip is extended to the extended position, the elastic locking strip abuts against the fixed base to restrict the lifting frame from retracting into the fixed base from the raised limit position.

[0010] Preferably, the load support is provided with an unlocking member, and the load support has a locking angle and an unlocking angle relative to the lifting frame; when the drive slider is located in the lifting drive range, the load support is at the locking angle, and the unlocking member abuts against the elastic locking strip and restricts it to the retracted position; when the drive slider is located in the rotation drive range, the load support is released from rotation restriction; when the load support rotates from the locking angle to the unlocking angle, the unlocking member releases the elastic locking strip so that the elastic locking strip tends to the unfolded position; when the load support rotates from the unlocking angle to the locking angle, the unlocking member presses the elastic locking strip so that the elastic locking strip tends to the retracted position from the unfolded position.

[0011] Preferably, the fixed base has at least one limiting baffle; when the driving slider is in the lifting driving range, the side of the load bracket abuts against the limiting baffle to form a circumferential constraint; when the driving slider is in the rotation driving range, the load bracket separates from the limiting baffle to release the circumferential constraint.

[0012] Preferably, the driving element includes a motor and a lead screw driven to rotate by the motor. The lead screw is rotatably mounted in the fixed base, and the extension direction of the lead screw is consistent with the sliding direction of the driving slider. The driving slider has a threaded sleeve portion, and the lead screw is threadedly connected to the threaded sleeve portion. The lead screw is configured to drive the driving slider to slide by rotation.

[0013] Preferably, the lifting frame is provided with a slide groove extending along the sliding direction of the drive slider, the drive slider slides in cooperation with the slide groove, and the slide groove is configured to restrict the drive slider from rotating with the lead screw.

[0014] Preferably, the fixed base has a fixed slide extending along its sliding direction, the lifting frame slides in cooperation with the fixed slide, and the fixed slide is configured to limit the lifting frame to slide along a predetermined trajectory.

[0015] An in-vehicle display system includes the aforementioned lifting and rotating display screen bracket device, and also includes a display screen body, the display screen body being mounted on a load bracket, and the display screen body being configured to be lifted and rotated by the lifting and rotating display screen bracket device.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. By using a single drive source to complete the combined actions of lifting and flipping through mechanical logic sequence, the thickness and space occupation of the mechanism in the narrow slot of the vehicle armrest can be effectively reduced. This not only reduces hardware costs, but also fundamentally avoids the risk of screen interference and impact caused by multiple power source loss of synchronization, thus improving the operational reliability of the system.

[0017] 2. By dividing the drive stroke into two non-overlapping drive zones of lifting and rotation, temporal decoupling of motion degrees of freedom is achieved at the mechanical hardware level. This design does not require a complex sensor array to determine when to initiate lifting or rotation, but instead utilizes the natural flow of the drive slider between the first, second, and third positions to forcibly constrain the motion mode.

[0018] 3. When the drive slider reaches the second position, the lifting frame touches the upper limit block, and the load support begins to rotate from the locking angle to the unlocking angle. As the load support rotates, the unlocking component moves away. The elastic locking bar, freed from the physical pressure of the unlocking component, quickly switches to the unfolded position according to its own movement. At this time, the locking bar abuts against the edge of the fixed base, limiting the lifting frame to its maximum lifting position, providing an absolutely stable torque fulcrum for the subsequent large-angle rotation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the display screen bracket device of the present invention.

[0020] Figure 2 This is a structural schematic diagram of the lifting frame of the present invention.

[0021] Figure 3 This is a schematic diagram showing the connection relationship between the lifting frame, the driving slider, and the fixed slide of the present invention.

[0022] Figure 4 This is a schematic diagram of the load support of the display screen bracket device of the present invention after rotation.

[0023] Figure 5 This is a schematic diagram of the load support of the display screen bracket device of the present invention after being rotated 90 degrees.

[0024] Figure 6 This is a schematic diagram of the elastic locking strip of the present invention in the retracted position.

[0025] Figure 7 This is a schematic diagram of the elastic locking strip of the present invention in the unfolded position.

[0026] Figure 8 This is a schematic diagram of the load bracket of the vehicle display system of the present invention being raised and lowered vertically.

[0027] Figure 9 This is a schematic diagram of the load bracket of the vehicle display system of the present invention when rotated to be used horizontally.

[0028] In the diagram, 100 is the fixed base; 110 is the limiting baffle; 120 is the fixed slide; 200 is the driving slider; 210 is the rack; 220 is the screw sleeve; 300 is the lifting frame; 310 is the limiting block; 320 is the elastic locking strip; 330 is the slide groove; 400 is the load support; 410 is the gear; 420 is the unlocking component; 500 is the motor; and 600 is the lead screw. Detailed Implementation

[0029] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0030] like Figures 1 to 7 As shown, a lifting and rotating display screen support device includes: Fixed base 100; A drive slider 200 is slidably mounted on a fixed base 100, and the drive slider 200 is provided with a rack 210; The lifting frame 300 is slidably connected to the fixed base 100, and the driving slider 200 is parallel to the sliding direction of the lifting frame 300. The load support 400 is rotatably connected to the lifting frame 300 via a rotating shaft. The rotating shaft is equipped with a gear 410, which is circumferentially fixed to the load support 400 and meshes with the rack 210. A driving element is connected to the driving slider 200 and is configured to drive the driving slider 200 to slide. The load support 400 has a first state and a second state, and the stroke position of the drive slider 200 determines whether the load support 400 is in the first state or the second state. In the first state, the load support 400 is located inside the fixed base 100 and is circumferentially locked to the lifting frame 300. The rack 210 and the circumferentially locked gear 410 remain relatively fixed, and the drive slider 200, the lifting frame 300 and the load support 400 form a synchronous motion structure. In the second state, the load support 400 extends out of the fixed base 100 and releases the circumferential lock with the lifting frame 300. The drive slider 200 is allowed to slide relative to the lifting frame 300, and the displacement of the drive slider 200 relative to the lifting frame 300 is converted into the rotation angle of the load support 400 relative to the lifting frame 300 through the meshing transmission of the gear 410 and the rack 210.

[0031] The core operating logic of the lifting and rotating display screen bracket device is based on the dynamic matching of the different stroke stages of the drive slider 200 with the mechanical constraint conditions.

[0032] The lifting and rotating display screen bracket device uses a driving element to drive the driving slider 200 to move within a preset stroke, thereby realizing the mode switching of the load bracket 400 from linear motion to rotational motion.

[0033] During the lifting phase, the load support 400 is in its first state, located inside the fixed base 100. Due to the physical constraints of the fixed base 100, the load support 400 and the lifting frame 300 are circumferentially locked, meaning the load support 400 cannot rotate around its axis. Based on the circumferential fixation of the gear 410 and the load support 400, and the meshing of the gear 410 with the rack 210 on the drive slider 200, when the load support 400 cannot rotate, the gear 410 cannot generate relative displacement on the rack 210 either. At this time, the gear 410 and rack 210 pair constitute a rigid force-bearing fulcrum, and the thrust applied by the drive element to the drive slider 200 is completely transmitted to the lifting frame 300 through this connection point. Therefore, the drive slider 200, the lifting frame 300, and the load support 400 form a synchronous motion structure within the fixed base 100, sliding together in a preset direction.

[0034] When the drive slider 200 moves the lifting frame 300 to the position where the load support 400 extends beyond the fixed base 100, the display screen support device enters the rotation stage, and the load support 400 enters the second state. At this time, the fixed base 100 releases the circumferential displacement constraint on the load support 400, and the load support 400 gains rotational freedom. In this stage, the drive slider 200 can produce sliding displacement relative to the lifting frame 300. Since the gear 410 and the rack 210 always remain meshed, each linear displacement generated by the drive slider 200 relative to the lifting frame 300 will be forced to rotate by the rack 210, thereby accurately converting it into the rotation angle of the load support 400 relative to the lifting frame 300 through the rotating shaft. By controlling the stroke position of the drive slider 200, the automatic switching and connection between the linear lifting and spatial rotation motion modes of the load support 400 can be achieved.

[0035] The aforementioned structure utilizes a mechanical decoupling mechanism to achieve two-stage composite motion based on a single drive source. By applying differentiated constraints to the load support 400 at different stroke stages by the fixed base 100, the single force direction of the drive slider 200 is cleverly transformed into two motion dimensions of the load support 400. Before the load support 400 extends beyond the fixed base 100, due to mechanical interference, the load support 400 cannot physically trigger rotation. This logic control, relying on structural features rather than electronic sensors, greatly improves the reliability of the device's operation and eliminates the potential for mechanical interference at its source. Furthermore, the gear 410 and rack 210 pair complete the switching of dual functions. During the synchronous lifting stroke, the gear 410 and rack 210 pair acts as a power transmission medium, ensuring the synchronicity of motion; while during the rotation stroke, the gear 410 and rack 210 pair acts as a motion conversion mechanism, efficiently converting linear power into torsional torque.

[0036] like Figures 1 to 7 As shown, based on the above embodiment, the stroke position of the drive slider 200 includes a first position, a second position, and a third position; the first position and the second position define a lifting drive range, and the second position and the third position define a rotation drive range. When the drive slider 200 is in the lifting drive range, the load support 400 is in the first state, and the displacement of the drive slider 200 is linearly mapped to the displacement of the load support 400. When the drive slider 200 is in the rotation drive range, the load support 400 is in the second state, the lifting frame 300 remains fixed relative to the fixed base 100, and the displacement of the drive slider 200 relative to the lifting frame 300 and the rotation angle of the load support 400 form a linear mapping relationship through the meshing ratio of the gear 410 and the rack 210.

[0037] By dividing the drive stroke into two non-overlapping drive zones of lifting and rotation, temporal decoupling of motion degrees of freedom is achieved at the mechanical hardware level. This design eliminates the need for complex sensor arrays to determine when to initiate lifting or rotation; instead, it utilizes the natural flow of the drive slider 200 between the first, second, and third positions to forcibly constrain the motion modes. Before the load support 400 reaches the second position, the rotational degree of freedom is physically locked, ensuring the purity of the lifting process; once the second position is crossed, the lifting degree of freedom is locked while the rotational degree of freedom is released, ensuring stability during the rotation phase.

[0038] Based on the above embodiments, the lifting frame 300 has a limiting block 310 for limiting its lifting limit position; when the drive slider 200 is in the second position, the limiting block 310 and the fixed base 100 form a physical abutment to limit the lifting frame 300 to the lifting limit position; when the drive slider 200 is in the rotation drive range and tends to the third position, the limiting block 310 and the fixed base 100 cooperate to limit the lifting frame 300 from exceeding the lifting limit position.

[0039] The limiting block 310 is the key mechanical fulcrum for the mechanism to achieve automatic switching of motion modes. Without this physical limit, the force on the drive slider 200 would always be an overall upward thrust, unable to generate the relative displacement that would cause the gear 410 to rotate. When the drive slider 200 reaches the second position, the limiting block 310 on the lifting frame 300 immediately comes into physical contact with the fixed base 100. This physical collision forcibly terminates the vertical degree of freedom of the lifting frame 300, placing it at its lifting limit position.

[0040] When the drive slider 200 crosses the second position and enters the rotational drive zone and approaches the third position, the engagement of the limit block 310 and the fixed base 100 restricts the possibility of the lifting frame 300 continuing to rise. The power output by the drive element no longer manifests as driving the lifting frame 300 to move upwards, but instead forces the drive slider 200 to overcome internal friction, resulting in an upward sliding relative to the stationary lifting frame 300. This relative sliding displacement is converted through the meshing relationship between the gear 410 and the rack 210, driving the load support 400 to perform a flipping motion in place at the lifting limit position via the rotating shaft. During this stage, the limit block 310 provides the necessary reaction force fulcrum, ensuring that the linear displacement of the drive slider 200 can be completely converted into the rotational kinetic energy of the load support 400 through torque conversion.

[0041] Based on the above embodiment, an elastic locking strip 320 is provided on one side of the lifting frame 300. The elastic locking strip 320 has a retracted position that does not protrude from the side of the lifting frame 300 and an extended position that protrudes from the side of the lifting frame 300. The elastic locking strip 320 is configured to have a tendency to move towards the extended position. When the drive slider 200 is in the lifting drive range, the elastic locking strip 320 is constrained to the retracted position. When the drive slider 200 slides from the second position to the third position, the elastic locking strip 320 moves from the retracted position to the extended position. And when the elastic locking strip 320 is extended to the extended position, the elastic locking strip 320 abuts against the fixed base 100 to restrict the lifting frame 300 from the raised limit position to retract into the fixed base 100.

[0042] During the rotation phase, the lifting frame 300 often faces complex force conditions (including the eccentric torque generated by the rotation of the load support 400 and the downward component force of the rack 210). Through the cooperation of the limit block 310 (to prevent over-lift) and the elastic locking strip 320 (to prevent retraction), the lifting frame 300 instantly transforms from a movable part into a rigid support after reaching the preset position. This bidirectional locking ensures that the axis of rotation remains completely stationary regardless of the rotation posture, eliminating the risk of screen misalignment caused by shaking.

[0043] Based on the above embodiments, the load support 400 is provided with an unlocking member 420. The load support 400 has a locking angle and an unlocking angle relative to the lifting frame 300. When the drive slider 200 is in the lifting drive range, the load support 400 is in the locking angle, and the unlocking member 420 abuts against the elastic locking strip 320 and restricts it to the retracted position. When the drive slider 200 is in the rotation drive range, the load support 400 is released from the rotation restriction. When the load support 400 rotates from the locking angle to the unlocking angle, the unlocking member 420 releases the elastic locking strip 320 so that the elastic locking strip 320 tends to the unfolded position. When the load support 400 rotates from the unlocking angle to the locking angle, the unlocking member 420 presses the elastic locking strip 320 so that the elastic locking strip 320 tends to the retracted position from the unfolded position.

[0044] When the drive slider 200 is in the lifting drive zone, the load bracket 400 is in the locking angle (usually the vertical storage position of the screen). At this time, the unlocking element 420 on the load bracket 400 is in a specific phase, and its physical surface continuously presses against the elastic locking strip 320, forcibly locking it in the retracted position. This design ensures that throughout the entire lifting stroke, regardless of external vibrations, the elastic locking strip 320 will not accidentally pop out and interfere with the relative sliding between the lifting frame 300 and the fixed base 100.

[0045] When the drive slider 200 reaches the second position, the lifting frame 300 touches the upper limit block 310, and the load support 400 begins to rotate from the locking angle to the unlocking angle. As the load support 400 rotates, the unlocking component 420 moves away. Freed from the physical pressure of the unlocking component 420, the elastic locking strip 320 quickly switches to the unfolded position according to its own movement. At this time, the locking strip abuts against the edge of the fixed base 100, restricting the lifting frame 300 to its maximum lifting position, providing an absolutely stable torque fulcrum for subsequent large-angle rotation.

[0046] When the lifting frame 300 needs to be retracted, the drive slider 200 moves in the opposite direction, and the load support 400 first rotates from the unlocking angle back to the locking angle. During the return to the locking angle, the unlocking member 420 contacts and precisely presses the elastic locking strip 320 again, pushing it back from the unfolded position to the retracted position. Only when the elastic locking strip 320 is fully retracted and releases its contact with the fixed base 100 does the lifting frame 300 have the physical conditions to descend.

[0047] The rotational degree of freedom of the load support 400 and the translational degree of freedom of the lifting frame 300 are mechanically coupled by the unlocking component 420, so that the motion of the two dimensions is mutually constrained in time, fundamentally eliminating motion interference and accidental falls. This pose-driven state switching logic gives the mechanism extremely high self-locking stability and motion determinism.

[0048] like Figure 1 As shown, based on the above embodiment, the fixed base 100 has at least one limiting baffle 110; when the drive slider 200 is in the lifting drive range, the side of the load bracket 400 abuts against the limiting baffle 110 to form a circumferential constraint; when the drive slider 200 is in the rotation drive range, the load bracket 400 separates from the limiting baffle 110 to release the circumferential constraint.

[0049] like Figure 1 , Figure 4 As shown, based on the above embodiment, the driving element includes a motor 500 and a lead screw 600 driven to rotate by the motor 500. The lead screw 600 is rotatably mounted in the fixed base 100, and the extension direction of the lead screw 600 is consistent with the sliding direction of the driving slider 200. The driving slider 200 has a threaded sleeve portion 220, and the lead screw 600 is threadedly connected to the threaded sleeve portion 220. The lead screw 600 is configured to drive the sliding slider 200 to slide by rotation.

[0050] When the motor 500 receives the start command, the motor 500 drives the lead screw 600 to rotate in place within the fixed base 100. Since the lead screw 600 passes through the threaded sleeve 220 of the drive slider 200, according to the principle of screw transmission, the rotational torque of the lead screw 600 is converted into a linear thrust of the drive slider 200 along the axial direction (i.e., the vertical direction) of the lead screw 600.

[0051] like Figure 1 , Figure 2 As shown, based on the above embodiment, the lifting frame 300 is provided with a slide groove 330 extending along the sliding direction of the drive slider 200. The drive slider 200 slides in cooperation with the slide groove 330, and the slide groove 330 is configured to restrict the drive slider 200 from rotating with the lead screw 600.

[0052] like Figure 1 , Figure 3As shown, based on the above embodiment, the fixed base 100 has a fixed slide 120 extending along its sliding direction, the lifting frame 300 slides with the fixed slide 120, and the fixed slide 120 is configured to limit the lifting frame 300 to slide along a predetermined trajectory.

[0053] like Figures 1 to 7 As shown, the working process of the lifting and rotating display screen bracket device is as follows: The motor 500 drives the lead screw 600 inside the fixed base 100 to rotate, and the drive slider 200, which is threaded to it, begins to move upward along the axis of the lead screw 600 under force, producing a linear displacement. Within the lifting drive zone, the load support 400 (and the display screen body on which it is mounted) is circumferentially constrained by the lifting limit baffle 110 on the fixed base 100, preventing the load support 400 from rotating relative to the lifting frame 300. Although the rack 210 on the drive slider 200 and the gear 410 on the shaft of the load support 400 are in a meshing state, the load support 400 cannot rotate due to the limit baffle. The upward thrust of the drive slider 200 is directly transmitted to the lifting frame 300 through the gear 410 and rack 210 pair, causing the lifting frame 300, the load support 400, and the display screen body to rise uniformly as a whole module. During this rising process, the unlocking piece 420 on the load support 400 continuously presses the elastic locking strip 320 installed on the lifting frame 300, keeping it in a contracted state against the elastic force and preventing interference with the base.

[0054] When the lifting frame 300 rises to the point where its upper end touches the limiting block 310 at the top of the fixed base 100 (when the driving slider 200 reaches the second position), the linear displacement of the lifting frame 300 is physically blocked. At this time, the side of the load support 400 just completely passes the constraint height of the lifting limit baffle 110, releasing the circumferential restriction and gaining rotational freedom.

[0055] The motor 500 continues to drive the lead screw 600 to rotate, and the drive slider 200 continues to move upward into the rotation drive zone even after the lifting frame 300 has stopped, generating a relative displacement relative to the lifting frame 300. During this relative displacement, the drive slider 200 drives the gear 410 of the load support 400 through its rack 210 to rotate around the axis, causing the display screen body to transition from the initial state (e.g., portrait) to the predetermined posture (e.g., landscape). As the load support 400 rotates, the unlocking piece 420 fixed to it moves away. At this time, the elastic locking bar 320, freed from pressure constraint, automatically pops out under the action of the spring and precisely abuts against the support position of the fixed base 100. At this time, even if the motor 500 is de-energized or subjected to external pressure, the lifting frame 300 cannot fall due to the rigid support of the elastic locking bar 320, thus achieving rigid vertical locking at the limit height.

[0056] When motor 500 drives lead screw 600 to rotate in the opposite direction, drive slider 200 to move downward. First, drive load bracket 400 to rotate in the opposite direction (e.g., from landscape to portrait). As the rotation nears completion, unlocking piece 420 on load bracket 400 presses against elastic locking strip 320 again with the rotation, pushing it back into the lifting frame 300 and releasing the vertical support lock. After the load bracket 400 rotates and resets, its side re-enters the constraint path of lifting limit baffle 110, and its rotational freedom is once again deprived. As drive slider 200 continues to descend, it again drives the entire lifting frame 300 and load bracket 400 module to descend synchronously through gear 410 and rack 210, finally returning to the fixed initial storage position (first position).

[0057] like Figures 1 to 9 As shown, based on the above embodiments, an in-vehicle display system includes a lifting and rotating display screen bracket device and a display screen body. The display screen body is mounted on a load bracket 400 and is configured to be able to be lifted and rotated by the lifting and rotating display screen bracket device.

[0058] The display screen is integrated onto a load support 400 with both lifting and rotation functions. By driving the slider 200 to trigger different mechanical constraint states during the range of displacement, the display screen is able to smoothly rise from inside the dashboard, release the rotation restriction at a preset height and automatically flip into a horizontal screen, and achieve a complete deployment process of vertical posture rigid locking through the elastic locking bar 320. Its core advantage lies in using a single power source in conjunction with strict geometric limit logic to ensure high-precision synchronization of the display screen during movement and reliable self-locking in extreme environments.

[0059] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0060] Furthermore, in this invention, descriptions involving "first," "second," "a," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature.

[0061] In this invention, unless otherwise explicitly specified and limited, the terms "connection" and "fixed" should be interpreted broadly. For example, "fixed" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction between two elements, unless otherwise explicitly limited.

[0062] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

Claims

1. A lifting and rotating display screen support device, characterized in that, include: Fixed base (100); A drive slider (200) is slidably mounted on the fixed base (100), and the drive slider (200) is provided with a rack (210); A lifting frame (300) is slidably connected to the fixed base (100), and the driving slider (200) is parallel to the sliding direction of the lifting frame (300). A load support (400) is rotatably connected to the lifting frame (300) via a rotating shaft. The rotating shaft is provided with a gear (410), which is circumferentially fixed to the load support (400) and meshes with the rack (210). A driving element connected to the driving slider (200) and configured to drive the driving slider (200) to slide; The load support (400) has a first state and a second state, and the stroke position of the drive slider (200) determines whether the load support (400) is in the first state or the second state. In the first state, the load support (400) is located inside the fixed base (100) and circumferentially locked to the lifting frame (300), the rack (210) and the circumferentially locked gear (410) remain relatively fixed, and the drive slider (200), the lifting frame (300) and the load support (400) form a synchronous motion structure; In the second state, the load support (400) extends out of the fixed base (100) and releases its circumferential lock with the lifting frame (300). The drive slider (200) is allowed to slide relative to the lifting frame (300), and the displacement of the drive slider (200) relative to the lifting frame (300) is converted into the rotation angle of the load support (400) relative to the lifting frame (300) through the meshing transmission of the gear (410) and the rack (210).

2. The lifting and rotating display screen bracket device as described in claim 1, characterized in that: The stroke positions of the drive slider (200) include a first position, a second position, and a third position; a lifting drive range is defined between the first position and the second position, and a rotation drive range is defined between the second position and the third position; When the drive slider (200) is in the lifting drive zone, the load support (400) is in the first state, and the displacement of the drive slider (200) is linearly mapped to the displacement of the load support (400). When the drive slider (200) is in the rotation drive range, the load support (400) is in the second state, the lifting frame (300) remains fixed relative to the fixed base (100), and the displacement of the drive slider (200) relative to the lifting frame (300) and the rotation angle of the load support (400) are linearly mapped through the meshing ratio of the gear (410) and the rack (210).

3. The lifting and rotating display screen bracket device as described in claim 2, characterized in that: The lifting frame (300) has a limiting block (310) for limiting its lifting limit position; when the drive slider (200) is in the second position, the limiting block (310) and the fixed base (100) form a physical abutment to limit the lifting frame (300) to the lifting limit position; when the drive slider (200) is in the rotation drive range and tends to the third position, the limiting block (310) and the fixed base (100) cooperate to restrict the lifting frame (300) from exceeding the lifting limit position.

4. The lifting and rotating display screen bracket device as described in claim 3, characterized in that: The lifting frame (300) has an elastic locking strip (320) on one side. The elastic locking strip (320) has a retracted position that does not protrude from the side of the lifting frame (300) and an extended position that protrudes from the side of the lifting frame (300). The elastic locking strip (320) is configured to have a tendency to move towards the extended position. When the drive slider (200) is in the lifting drive range, the elastic locking strip (320) is constrained to the retracted position. When the drive slider (200) slides from the second position to the third position, the elastic locking strip (320) moves from the retracted position to the extended position. And when the elastic locking strip (320) is extended to the extended position, the elastic locking strip (320) abuts against the fixed base (100) to restrict the lifting frame (300) from the raised limit position to retract into the fixed base (100).

5. The lifting and rotating display screen bracket device as described in claim 4, characterized in that: The load support (400) is provided with an unlocking member (420). The load support (400) has a locking angle and an unlocking angle relative to the lifting frame (300). When the drive slider (200) is located in the lifting drive zone, the load support (400) is at the locking angle, and the unlocking member (420) abuts against the elastic locking strip (320) and restricts it to the retracted position. When the drive slider (200) is located in the rotation drive zone, the load support (400) is provided with an unlocking member (420). 0) The rotation restriction is lifted; when the load support (400) rotates from the locking angle to the unlocking angle, the unlocking member (420) releases the elastic locking strip (320) so that the elastic locking strip (320) tends to the unfolded position; when the load support (400) rotates from the unlocking angle to the locking angle, the unlocking member (420) presses the elastic locking strip (320) so that the elastic locking strip (320) tends to the retracted position from the unfolded position.

6. The lifting and rotating display screen bracket device as described in claim 2, characterized in that: The fixed base (100) has at least one limiting baffle (110); when the drive slider (200) is in the lifting drive range, the side of the load bracket (400) abuts against the limiting baffle (110) to form a circumferential constraint; when the drive slider (200) is in the rotation drive range, the load bracket (400) separates from the limiting baffle (110) to release the circumferential constraint.

7. The lifting and rotating display screen bracket device as described in claim 1, characterized in that: The driving element includes a motor (500) and a lead screw (600) driven to rotate by the motor (500). The lead screw (600) is rotatably mounted in the fixed base (100), and the extension direction of the lead screw (600) is consistent with the sliding direction of the driving slider (200). The driving slider (200) has a threaded sleeve (220), and the lead screw (600) is threadedly connected to the threaded sleeve (220). The lead screw (600) is configured to drive the driving slider (200) to slide by rotation.

8. The lifting and rotating display screen bracket device as described in claim 7, characterized in that: The lifting frame (300) is provided with a groove (330) extending along the sliding direction of the drive slider (200), the drive slider (200) slides in cooperation with the groove (330), and the groove (330) is configured to restrict the drive slider (200) from rotating with the lead screw (600).

9. The lifting and rotating display screen bracket device as described in claim 1, characterized in that: The fixed base (100) has a fixed slide (120) extending in its sliding direction, and the lifting frame (300) slides in cooperation with the fixed slide (120). The fixed slide (120) is configured to limit the lifting frame (300) to slide along a predetermined trajectory.

10. A vehicle-mounted display system, characterized in that, The device includes a lifting and rotating display screen bracket as described in any one of claims 1 to 9, and further includes a display screen body mounted on a load bracket (400), the display screen body being configured to be lifted and rotated by the lifting and rotating display screen bracket device.

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