A vehicle curtain device and a vehicle

Abstract

The utility model provides a kind of vehicle curtain device and vehicle, it is related to vehicle-mounted projection technical field, including shell body;Curtain assembly, including curtain winding drum and drive mechanism, the winding drum winding curtain and with drive mechanism transmission connection;Supporting arm assembly, for supporting curtain, when curtain is in retracted state, the supporting arm assembly is housed in shell body;Lifting control mechanism, including power part and casing, the casing is movably provided with actuator, stop piece and follower, wherein, the actuator is driven by power part and actuator movement path has first limit position and second limit position, the follower is fixedly connected supporting arm joint, the supporting arm joint is connected with the second end of the supporting arm assembly;By above setting, in vibration use environment, realize the complexity of structure and failure rate while improving anti-vibration performance, applicability and use reliability of reducing.

Description

Technical Field

[0001] This utility model relates to the field of vehicle projection technology, and in particular to a vehicle screen device and a vehicle. Background Technology

[0002] As automobiles become increasingly intelligent, the functions of in-vehicle systems are becoming more diverse. In-vehicle projection systems, as the core interactive carrier of smart cockpits, are evolving from fixed displays to retractable screen systems. However, several technical challenges remain. For example, existing screen retraction systems are structurally complex, and continuous mechanical vibration under in-vehicle conditions can easily lead to locking mechanism failure, resulting in structural instability, high failure rates, and poor reliability. Furthermore, existing screen retraction systems have poor applicability, failing to achieve flexible control over the screen's release height. There are also issues with spatial adaptability and dead-point conflicts: the unfolded height of the in-vehicle projection screen directly affects the viewing experience. When the screen is fully unfolded, the support arm assembly is parallel to the lifting direction (i.e., the dead-point position), at which point the support arm hinders screen retraction. To avoid obstructing the curtain retraction process when the support arm is in a dead position, the existing solution is forced to sacrifice support strength, allowing the support arm to retain a certain tilt angle. This results in an excessively large overall system size and weight, reduced curtain flatness, wave deformation during vehicle vibration, and extremely limited roof space. The long support arm structure requires a large amount of roof space and is difficult to adapt to compact vehicle models.

[0003] Therefore, there is an urgent need to develop a vehicle curtain device that is suitable for vehicle vibration environments, can overcome dead point limitations, has multi-level curtain release height control capabilities, stable locking capabilities, and a compact structure. Utility Model Content

[0004] The purpose of this utility model is to provide a vehicle curtain device to solve the technical problems existing in the prior art.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A vehicle curtain device, comprising:

[0006] outer shell;

[0007] A curtain assembly, which is disposed within a housing, includes a curtain take-up roller and a drive mechanism, wherein the take-up roller winds the curtain and is connected to the drive mechanism in a transmission manner.

[0008] The support arm assembly is used to support the curtain. The end of the curtain away from the take-up roller is connected to the first end of the support arm assembly. The second end of the support arm assembly is rotatably configured. During the raising and lowering of the curtain, the first end of the support arm assembly is driven to rotate around the second end of the support arm assembly. When the curtain is in the retracted state, the support arm assembly is housed in the outer shell.

[0009] A lifting control mechanism includes a power unit and a housing. An actuator, a stop, and a follower are movably disposed within the housing. The actuator is driven by the power unit and has a first and a second limit position along its movement path. The follower is fixedly connected to a support arm connector, which is connected to the second end of a support arm assembly. The support arm assembly drives the follower to move synchronously through the support arm connector. When the actuator moves from the first limit position to the second limit position, the actuator abuts against the stop and pushes the stop from a locked state to an unlocked state, at which point the stop disengages from the follower.

[0010] When the actuator moves from the second limit position to the first limit position, the actuator releases the limit on the stop member, and the stop member moves from the unlocked state to the locked state. At this time, the stop member engages with the follower member to restrict the movement of the follower member.

[0011] Furthermore, the stop member moves from the unlocked state to the locked state under the action of the elastic member it is connected to.

[0012] Furthermore, the actuator includes a main body and an unlocking part that move synchronously. The stop is at least partially located on the movement path of the unlocking part. When the unlocking part moves to the second extreme position, the unlocking part abuts against the stop and pushes the stop from the locked state to the unlocked state.

[0013] Furthermore, the actuator also includes a pushing part that moves synchronously with the actuator, the pushing part being located at the end of the main body away from the unlocking part;

[0014] The follower is equipped with a lever. When the curtain is fully unfolded, the lever is located on the movement path of the pusher. The horizontal distance between the lever and the pusher is greater than the horizontal distance between the unlocking part and the stop. When the actuator moves from the first limit position to the second limit position, the stop and the follower disengage. The actuator continues to move in the same direction, and the pusher pushes the lever to deflect in the direction of curtain retraction.

[0015] Furthermore, the actuator also includes a pushing part that moves synchronously with the actuator. The pushing part is a groove formed on the main body, with the bottom of the groove open and the side of the groove near the unlocking part being the pushing side.

[0016] The follower is provided with a lever. When the curtain is fully unfolded, the lever is located inside the groove and the horizontal distance between the lever and the pushing side is greater than the horizontal distance between the unlocking part and the stop. When the actuator moves from the first extreme position to the second extreme position, after the stop and the follower disengage, the actuator continues to move in the same direction, and the pushing side pushes the lever to deflect in the direction of curtain retraction.

[0017] Furthermore, the side of the groove furthest from the unlocking part is the limiting side. When the curtain is unfolded from the retracted state to the fully unfolded state, the lever moves into the groove and the horizontal distance between the lever and the limiting side is greater than the horizontal distance between the unlocking part and the stop. After the curtain is fully unfolded, the power unit drives the actuator to move from the second limit position to the first limit position, the stop moves from the unlocked state to the locked state, and the actuator continues to move in the same direction until the lever abuts against the limiting side.

[0018] Furthermore, the contact between the lever and the limiting side includes: the limiting side applying a force to the lever to cause the arm assembly to deflect in the direction of curtain unfolding or to cause the arm assembly to have a tendency to deflect in the direction of curtain unfolding.

[0019] Furthermore, the side of the unlocking part near the stop member is a push-unlocking end, which includes an arc-shaped surface connected to the main body, and an inclined surface is connected to one end of the arc-shaped surface near the unlocking part.

[0020] Furthermore, the inclined surface and the length extension direction of the main body have an angle α, the angle α being in the range of 15-25 degrees, and the angle by which the stop moves from the locked state to the unlocked state is 1.7-1.8 times the angle α.

[0021] Furthermore, the follower is provided with an angle sensor for monitoring its rotation angle.

[0022] Furthermore, a limiting groove is provided on one side of the stop member, and a limiting post that cooperates with the limiting groove is provided inside the housing;

[0023] Alternatively, the stop member may be provided with a limiting post, and the housing may be provided with a limiting groove that cooperates with the limiting post;

[0024] The limiting groove abuts against the limiting post. When the stop changes from the locked state to the unlocked state or from the unlocked state to the locked state, the limiting post and the limiting groove remain in contact, and the contact position moves from one end of the limiting groove to the other end of the limiting groove.

[0025] Furthermore, the actuator performs linear reciprocating motion or rotary reciprocating motion; the stop component performs rotational or linear reciprocating motion around an axis.

[0026] Furthermore, the stop is a pawl structure, which is movably installed inside the housing via a pin, and includes an abutting end and a locking end. The abutting end is located on the movement path of the unlocking part, and the locking end is used to lock with the follower to restrict the movement of the follower.

[0027] The follower is a ratchet structure, which has at least one slot that engages with the locking end to limit the ratchet rotation angle.

[0028] Furthermore, the support arm assembly includes a first support arm and a second support arm. One end of the first support arm is hinged to the curtain, and the other end of the first support arm is connected to one end of the second support arm via a hinge. The other end of the second support arm is connected to a support arm connector. When the curtain is in the retracted state, the first and second support arms are folded. When the curtain is in the fully unfolded state, the first and second support arms are unfolded until their length extension directions are parallel and coincident, and the length extension directions of the first and second support arms are parallel to the curtain lifting direction. At this time, the support arm assembly is in the dead point position.

[0029] Furthermore, an elastic element is provided at the hinge joint between the first arm and the second arm, which provides assistance to the first arm and the second arm to achieve the change from a folded state to an unfolded state.

[0030] The present invention also provides a vehicle including the above-described vehicle screen device and a projector for projecting images onto the screen.

[0031] The beneficial technical effects of this utility model are:

[0032] ① By coordinating the actuators, stoppers, and followers, the release height of the screen can be controlled, giving it multiple unfolding positions for users to choose from. Users can flexibly control the release height of the screen according to different usage needs to complete the predetermined unfolding position of the screen, significantly improving its applicability.

[0033] ② This application is particularly applicable to vehicle-mounted vibration environments. The actuator, stop, and follower work together through mechanical interlocking and dynamic response separation. Under vibration conditions, it achieves power transmission stability, locking reliability, and control of the follower's degrees of freedom. In the locked state, the stop is reset under the action of the elastic element, forming a rigid engagement with the follower. The preload of the elastic element ensures that the stop maintains a locked contact surface during vibration, preventing accidental rotation of the follower and effectively improving reliability. Furthermore, in this state, the actuator and stop are disengaged, and vibration energy is not exchanged between them. The vibration energy of the component is conducted to the outer shell for dispersion and absorption. This avoids the vibration energy of the arm component being conducted to the actuator, which would cause the actuator's movement trajectory to deviate and thus affect the unlocking reliability. It also avoids the vibration energy of the actuator being conducted to the stop and follower, which would cause the locking strength between the stop and follower to be unstable, leading to the follower rotating unexpectedly and affecting the locking reliability. In the unlocked state, the actuator moves between its extreme positions, directly pushing the stop to disengage from the follower. This process does not rely on electronic sensors, is resistant to electromagnetic interference, and has a reliable response, significantly reducing the failure rate.

[0034] ③ Through the coordinated operation of the actuator, the stopper and the follower, this application only needs to set a support arm assembly of a shorter length to achieve the same curtain unfolding height, reducing the overall size and weight, enabling this application to be used in the narrow space of a car, effectively improving applicability and reducing usage costs. Furthermore, the support arm assembly provides better support for the curtain when it is in a dead-point state, effectively ensuring the flatness of the curtain when used in a vibration environment. Attached Figure Description

[0035] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0036] Figure 1 This is a three-dimensional structural diagram of the vehicle curtain device in the retracted state provided in Embodiment 1 of this utility model;

[0037] Figure 2 A schematic diagram of the vehicle curtain device provided in Embodiment 1 of this utility model when the curtain is in a fully unfolded state;

[0038] Figure 3 A three-dimensional structural diagram of the lifting control mechanism when the curtain is in a fully unfolded state, as provided in Embodiment 1 of this utility model;

[0039] Figure 4 This is a three-dimensional structural diagram of the transmission component provided in Embodiment 1 of this utility model;

[0040] Figure 5 This is a three-dimensional structural diagram of the actuator provided in Embodiment 1 of this utility model;

[0041] Figure 6 This is a three-dimensional structural diagram of the actuator provided in Embodiment 2 of this utility model;

[0042] Figure 7 This is a three-dimensional structural diagram of the stop provided in Embodiment 1 of this utility model;

[0043] Figure 8 A three-dimensional structural diagram of the follower and support arm joint provided in Embodiment 1 of this utility model;

[0044] Figure 9 This is a schematic diagram showing the coordination between the various structures in the locked state when the curtain is fully unfolded, as provided in Embodiment 1 of this utility model.

[0045] Figure 10 for Figure 9 A structural diagram showing the positions of the first and second sensors is shown at point A in the middle.

[0046] Figure 11 This is a schematic diagram showing the interaction between the various structures in the unlocked state when the curtain is fully unfolded, as provided in Embodiment 1 of this utility model.

[0047] Figure 12 for Figure 11 Enlarged view at point B in the middle;

[0048] Figure 13 A schematic diagram of the cooperation between the outrigger assembly and the lifting control mechanism when breaking the dead point position of the outrigger assembly according to Embodiment 1 of this utility model;

[0049] Figure 14 A schematic diagram showing the coordination between the various structures of the lifting control mechanism when breaking the dead position of the outrigger assembly, as provided in Embodiment 1 of this utility model.

[0050] Figure 15 This is a schematic diagram of the groove and the lever block in action when breaking the dead point position of the support arm assembly, as provided in Embodiment 1 of this utility model.

[0051] Figure 16 This is a schematic diagram showing the cooperation between various structures when the curtain is fully unfolded and the limiting block abuts against the limiting side to limit it, as provided in Embodiment 1 of this utility model.

[0052] Reference numerals: 01, First extreme position; 02, Second extreme position; 1, Outer shell; 2, Rewinding cylinder; 3, Drive mechanism; 4, Curtain; 41, End plate; 5, Support arm assembly; 51, First support arm; 52, Second support arm; 53, First end; 54, Second end; 6, Power unit; 7, Housing; 8, Actuator; 81, Main body; 811, Slider; 82, Unlocking part; 821, Engaging teeth; 822, Push unlocking end; 8221, Arc-shaped surface; 82 22. Inclined surface; 83. Pushing part; 831. Groove; 8311. Pushing side; 8312. Limiting side; 9. Stopping part; 91. Elastic part; 92. Pin; 93. Abutting end; 94. Snapping end; 95. Limiting groove; 96. Limiting post; 97. Trigger plate; 10. Follower part; 101. Slot; 102. Toggle block; 11. Support arm joint; 12. First sensing element; 13. Second sensing element; 14. Input gear; 15. Large gear; 16. Small gear. Detailed Implementation

[0053] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0054] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.

[0055] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Furthermore, the terms "first," "second," and "third," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0056] In this invention, unless otherwise expressly specified and limited, "above or below" the first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on" the first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0057] Example 1:

[0058] See attached document Figure 1-12This application provides a vehicle curtain device, including: a curtain 4 assembly, which is disposed in the outer shell 1, including a curtain 4 winding roller 2 and a drive mechanism 3. The winding roller 2 winds the curtain 4 and is connected to the drive mechanism 3 in a transmission manner. The drive mechanism 3 is driven by a motor or manually pulled, and its function is to drive the curtain 4 winding roller 2 to rotate so as to release or wind up the curtain 4. In order to improve the level of intelligence, this application preferably uses a motor drive.

[0059] The support arm assembly 5 supports the screen 4. The end of the screen 4 furthest from the winding roller 2 is connected to the first end 53 of the support arm assembly 5. The second end 54 of the support arm assembly 5 is rotatably configured. During the raising and lowering of the screen, the first end 53 of the support arm assembly rotates around the second end 54. It is understood that the support arm assembly 5 provides tension to the screen 4, ensuring that the screen 4 remains flat and wrinkle-free during use, thereby guaranteeing the viewing effect. During the release of the screen 4, the support arm assembly 5 is subjected to gravity and external driving force, causing the support arm assembly 5... During the release of the curtain 4, it gradually rotates downward relative to the outer shell 1 until the length extension direction of the support arm assembly 5 is parallel to the vertical lifting direction of the curtain 4. At this time, the angle between the support arm assembly 5 and the outer shell 1 is 90 degrees, reaching the maximum release height of the curtain 4, and the curtain 4 reaches the fully unfolded state. Therefore, the length of the support arm assembly 5 determines the release height of the curtain 4. During the retraction of the curtain 4, the support arm assembly 5 is subjected to the pulling force from the curtain 4, and the support arm assembly 5 gradually rotates upward relative to the outer shell 1. In this application, when the curtain 4 is in the retracted state, the support arm assembly 5 is housed within the outer shell 1.

[0060] A lifting control mechanism, housed within a housing 1, includes a power unit 6 and a housing 7. The power unit 6 employs a stepper motor or a servo motor. The housing 7 protects the moving parts from dust contamination and facilitates installation within the housing 1. An actuator 8, a stop 9, and a follower 10 are movably disposed within the housing 7. In this application, the actuator 8 reciprocates linearly within the housing 7. In other embodiments, the actuator 8 may also reciprocate rotaryly. The stop 9 and follower 10 both rotate around an axis. In other embodiments, the stop 9 may also reciprocate linearly. The actuator 8 is driven by the power unit 6 and has a first limit position 01 and a second limit position 02 along its movement path. The actuator 8 reciprocates linearly within the first limit position 01 and the second limit position 02. The follower 10 is fixedly connected to a support arm connector 11, which is connected to the other end of a support arm assembly 5. The support arm assembly 5 drives the follower 10 to rotate synchronously via the support arm connector 11. When the actuator 8 is driven to move from the first extreme position 01 to the second extreme position 02, the actuator 8 abuts against the stop 9 and pushes the stop 9 from the locked state to the unlocked state. At this time, the stop 9 disengages from the follower 10. During the raising or lowering of the curtain 4, the support arm assembly 5 can drive the follower 10 to rotate synchronously at a certain angle. When the power unit 6 drives the actuator 8 to move from the second extreme position 02 to the first extreme position 01, the actuator 8 disengages from the stop 9, and in other... In some embodiments, the actuator 8 and the stop 9 may not disengage, which allows the stop 9 to move more quickly. Under the action of the elastic member 91 connected to it, the stop 9 moves from the unlocked state to the locked state. The elastic member 91 provides assistance to the stop 9, so that the stop 9 can rotate around the axis even without the actuator 8 pushing it. At this time, the stop 9 engages with the follower 10 to restrict the rotation of the follower 10, thereby fixing the support arm assembly 5 in a specific position to control the release height of the curtain 4.

[0061] The curtain assembly and the lifting control mechanism are both installed inside the outer shell 1. The main function of the outer shell 1 is to protect the internal components and reduce the difficulty of installation, so as to achieve modular installation. During vehicle use, the outer shell 1 is installed inside the vehicle roof.

[0062] In some embodiments, to ensure stability during the release process and the aesthetics of the curtain 4 lifting device when not in use, an end plate 41 is connected to the free end of the curtain 4. One end of the support arm assembly 5 is hinged to the upper surface of the end plate 41. The end plate 41 has a certain weight, so that the support arm assembly 5 is subjected to greater pulling force during the release of the curtain 4, avoiding the problem of wrinkles in the curtain 4 caused by the support arm assembly 5 not rotating in time. Under this setting, when the curtain 4 is in the retracted state, the support arm assembly 5 is housed in the housing and the end plate 41 covers the opening of the outer housing 1.

[0063] This application achieves control over the release height of the curtain 4 through the coordinated operation of the actuator 8, the stop 9, and the follower 10, providing multiple unfolding positions for the user to choose from. Users can flexibly control the release height of the curtain 4 according to different usage needs to complete the unfolding of the curtain 4 at a predetermined position, significantly improving its applicability. Secondly, this application is particularly suitable for vehicle vibration environments. The coordinated operation of the actuator 8, the stop 9, and the follower 10, through mechanical interlocking and dynamic response separation, achieves power transmission stability, locking reliability, and control of the degree of freedom of the follower 10 under vibration conditions. In the locked state, the stop 9 is reset under the action of the elastic element 91, forming a rigid engagement with the follower 10. The preload of the elastic element 91 ensures that the stop 9 maintains its locking force during vibration, preventing... Unexpected rotation of the follower 10 effectively improves the reliability of use. In this state, the actuator 8 and the stop 9 are disengaged, and their vibration energy is not exchanged. The vibration energy of the support arm assembly 5 is conducted to the outer shell 1 for dispersion and absorption. This can prevent the vibration energy of the support arm assembly 5 from being conducted to the actuator 8, causing the actuator 8's movement trajectory to deviate and thus affecting the unlocking reliability. It can also prevent the vibration energy of the actuator 8 from being conducted to the stop 9 and the follower 10, causing the locking strength between the stop 9 and the follower 10 to be unstable, leading to the follower 10 rotating unexpectedly and thus affecting the locking reliability. In the unlocked state, the actuator 8 moves between its extreme positions, directly pushing the stop 9 to disengage from the follower 10. This process does not rely on electronic sensors, is resistant to electromagnetic interference, and has a reliable response, significantly reducing the failure rate.

[0064] Therefore, this application achieves improved vibration resistance, applicability, and reliability by reducing structural complexity and failure rate in vibration-prone environments through the coordinated cooperation between the actuator 8, the stopper 9, and the follower 10.

[0065] In some implementations, refer to the appendix. Figure 7 and 9The stop member 9 is a pawl structure, which is movably mounted inside the housing 7 via a pin 92. It includes an abutment end 93 and a locking end 94, which are integrally formed. The abutment end 93 is located on the movement path of the unlocking part 82. The locking end 94 is used to engage with the follower 10 to restrict its movement. The elastic member 91 is installed between the locking end 94 and the housing 7. When the stop member 9 changes from the unlocked state to the locked state, the elastic member 91 provides assistance to the locking end 94, so that the locking end 94 smoothly engages with the follower 10 and remains in the locked state. A limiting groove 95 is also provided on one side of the stop member 9, and the housing 7 has a groove 95 that matches the limiting groove 95. The limiting post 96 is engaged with the limiting groove 95. In some other embodiments, the positions of the limiting groove 95 and the limiting post 96 can be interchanged. The limiting post 96 is provided on one side of the stop member 9, and the limiting groove 95 that cooperates with the limiting post 96 is provided inside the housing 7. When the stop member 9 changes from the locked state to the unlocked state or from the unlocked state to the locked state, the limiting post 96 and the limiting groove 95 remain engaged, and the engagement position moves from one end of the limiting groove 95 to the other end of the limiting groove 95. The elastic element 91 is a torsion spring or a spring sheet. In this application, a torsion spring is preferred. The torsion spring is sleeved on the pin 92 that fixes the stop member 9, with one end fixed to the snap-fit ​​end 94 and the other end fixed to the limiting post 96. This setting can prevent the actuator 8 from excessively pushing the stop 9, which helps to avoid the weakening of the elastic force of the elastic element 91, and can also ensure the stability of the stop 9 during its movement, avoid the problem of the stop 9 bouncing when it comes into contact with the actuator 8, and ensure that the stop 9 and the follower 10 can be smoothly engaged.

[0066] In some implementations, refer to the appendix. Figure 8 and 9 The follower 10 is a ratchet structure, which has at least one slot 101 that cooperates with the locking end 94 to limit the rotation angle of the ratchet. In this application, the follower 10 is provided with four slots 101, which correspond to the 25%, 60%, 80%, and 100% opening positions of the curtain 4, respectively. The stop 9 engages with the slots 101 at different positions to fix the curtain 4 at different release heights. It can be understood that when the curtain 4 is opened to the 100% position, the curtain 4 is in a fully opened state. At this time, the length extension direction of the support arm assembly 5 is parallel to the vertical lifting direction of the curtain 4, and the angle between the support arm assembly 5 and the outer shell 1 is 90 degrees.

[0067] For details, please refer to the appendix. Figure 5 , 69-12, the actuator 8 includes a main body 81, an unlocking part 82, and a pushing part 83 that move synchronously. The main body 81, the unlocking part 82, and the pushing part 83 can be fastened together by fasteners such as screws, bolts, and rivets, or fixed by welding, gluing, snap-fitting, etc., or it can be an integral structure manufactured by machining. The main body 81 has sliders 811 symmetrically arranged on both sides. The inner wall of the housing 7 is provided with a groove that slides and engages with the sliders 811. It should be noted that the groove structure can be set according to the structure of the slider. Since the groove is a conventional fit structure, it is not shown in the figure. The actuator 8 realizes reciprocating motion relative to the groove through the sliders 811. It can be understood that the length of the groove is... The degree is equal to the distance between the first limit position 01 and the second limit position 02 on the movement path of the actuator 8. The main body 81 is located above the stop member 9. The unlocking part 82 is arrayed with several meshing teeth 821. The output end of the power part 6 is meshed with the unlocking part 82 through a transmission component. The power part 6 drives the unlocking part 82, which in turn drives the actuator 8 to move. The stop member 9 is at least partially located on the movement path of the unlocking part 82. "At least partially" means that at least a part of the structure of the stop member 9 is located on the movement path of the unlocking part 82. When the unlocking part 82 moves to the second limit position 02, the unlocking part 82 abuts against the stop member 9 and pushes the stop member 9 from the locked state to the unlocked state. In a vehicle environment, vehicle vibration may cause multi-directional impact forces. Through the above settings, the movement of slider 811 in the groove is geometrically constrained, and actuator 8 retains only a single degree of freedom of movement along the length of the groove. This can prevent actuator 8 from getting stuck and ensure that actuator 8 still moves along the preset path under vibration and impact, effectively improving vibration resistance and reliability. Furthermore, the groove length is precisely matched with the movement path of actuator 8, which can avoid the problem of engagement failure and transmission interruption between the unlocking part and the power part when the actuator moves to the first or second limit position due to redundant space, thus ensuring reliability in use.

[0068] For details, please refer to the appendix. Figure 5 , 13-15, the pushing part 83 is a groove 831 opened on the main body 81, the bottom of the groove 831 is open and the side of it near the unlocking part 82 is the pushing side 8311; the follower 10 is provided with a lever 102. When the curtain 4 is in the fully unfolded state, the lever 102 is located inside the groove 831 and the horizontal distance between the lever 102 and the pushing side 8311 is greater than the horizontal distance between the unlocking part 82 and the stop member 9. When the actuator 8 moves from the first extreme position 01 to the second extreme position 02, after the stop member 9 and the follower 10 are disengaged, the actuator 8 continues to move in the same direction, and the pushing side 8311 pushes the lever 102 to deflect in the direction of curtain 4 retraction. Understandably, when the screen 4 is fully extended, the support arm assembly 5 is driven by the screen 4 to a position where its length extension direction is parallel to the vertical movement direction of the screen 4, and the angle between the support arm assembly 5 and the outer casing 1 is 90 degrees. If the screen 4 is retracted at this time, the support arm assembly 5 will obstruct the upward movement of the screen 4 and cannot directly drive the screen 4 to retract via the drive mechanism 3. Therefore, this position is called the dead point state of the support arm assembly 5. In the prior art, to avoid the support arm assembly 5 obstructing the retraction process of the screen 4 when it is in the dead point position... Typically, after the curtain 4 is unfolded, the support arm assembly 5 is tilted at a certain angle, resulting in insufficient support force from the support arm assembly 5 for the curtain 4, which cannot ensure the flatness of the curtain 4 when used in a vibrating environment. The automatic lifting device for the curtain 4 described in this application can eliminate the dead point state and realize the retraction of the curtain 4 in the fully unfolded state. The specific operation process is as follows: the power unit 6 drives the actuator 8 to move from the first extreme position 01 to the second extreme position 02, the unlocking part 82 abuts against the stop member 9 and pushes the stop member 9 from the locked state to the unlocked state. In the locked state, the actuator 8 continues to move in the same direction. The pushing side 8311 abuts against the toggle block 102 and pushes the toggle block 102 to deflect. The toggle block 102 drives the follower 10 to rotate synchronously. The follower 10 drives the support arm assembly 5 to deflect a certain angle towards the retraction direction of the screen 4 through the support arm joint 11, thereby breaking the dead position of the support arm assembly 5. At this time, the actuator 8 moves to the second limit position 02, the trigger piece 97 blocks the second sensor 13, the second sensor 13 sends an unlock success signal, and then the drive mechanism 3 drives the retraction. The roller 2 rewinds the curtain 4. Through the synergistic effect between the components, this application can effectively eliminate the dead point state of the support arm assembly 5. Compared with the prior art, this application only needs to set a smaller length of support arm assembly 5 to achieve the same unfolding height of the curtain 4, reducing the overall size and weight, enabling this application to be used in the narrow space of a car, effectively improving applicability and reducing usage costs. Furthermore, when the support arm assembly 5 is in the dead point state, it provides better support for the curtain 4, effectively ensuring the flatness of the curtain 4 when used in a vibration environment.

[0069] For details, please refer to the appendix. Figure 5 , 16The side of the groove 831 furthest from the unlocking part 82 is the limiting side 8312. When the curtain 4 is unfolded from the retracted state to the fully unfolded state, the lever 102 moves into the groove 831, and the horizontal distance between the lever 102 and the limiting side 8312 is greater than the horizontal distance between the unlocking part 82 and the stop member 9. The power unit 6 drives the actuator 8 to move from the second limit position 02 to the first limit position 01, and the stop member 9 moves from the unlocked state to the locked state. The actuator 8 continues to move in the same direction until the lever 102 abuts against the limiting side 8312. The abutment of the lever 102 against the limiting side 8312 includes: the limiting side 8312 applying a force to the lever 102, causing the support arm assembly 5 to deflect in the unfolding direction of the curtain 4 or causing the support arm assembly 5 to have a tendency to deflect in the unfolding direction of the curtain 4.

[0070] After the curtain 4 is fully unfolded, the extension direction of the support arm assembly 5 should be parallel to the lifting direction of the curtain 4. However, due to various tolerances and the influence of the usage environment, the support arm assembly 5 may not be parallel to the lifting direction of the curtain 4, making it impossible for the stop 9 to smoothly engage with the follower 10. This application addresses this by having the limiting side 8312 apply a force to the lever 102, causing the support arm assembly 5 to deflect in the unfolding direction of the curtain 4 or to have a tendency to deflect in the unfolding direction of the curtain 4, so that the extension direction of the support arm assembly 5 is parallel to the lifting direction of the curtain 4. This ensures smooth engagement between the stop 9 and the follower 10, achieving both limiting the follower 10 and the support arm assembly 5 when the curtain 4 is fully unfolded, ensuring the structural stability of the support arm assembly 5, and further improving reliability. It also reduces the contact stress between the stop 9 and the follower 10 in the locked state, further extending the service life. The specific actions of the limiting process are as follows: When the curtain 4 is... When the actuator 8 is extended from the retracted state to the fully extended state, the actuator 8 is located at the second limit position 02, the stop 9 is in the unlocked state, and the lever 102 rotates into the groove 831. Next, the power unit 6 drives the actuator 8 to move from the second limit position 02 to the first limit position 01. First, the stop 9 disengages from the actuator 8 and moves from the unlocked state to the locked state. The stop 9 engages with the locking member to restrict the movement of the follower 10. Then, the actuator 8 continues to move in the same direction until the lever 102 abuts against the limiting side 8312, thus limiting the follower 10 and the support arm assembly 5. At this time, the actuator 8 moves to the first limit position 01.

[0071] For details, please refer to the appendix. Figure 5-6The unlocking part 82, near the stop member 9, has a push-unlocking end 822. During the movement of the unlocking part 82 towards the second extreme position 02, the push-unlocking end 822 abuts against the stop member 9 and pushes the stop member 9 from the locked state to the unlocked state. The push-unlocking end 822 includes an arc-shaped surface 8221 connected to the main body 81. The arc-shaped surface 8221 and the plane containing the meshing teeth 821 are connected by an inclined surface 8222. Referring to the attached drawings, it can be understood that the plane containing the meshing teeth 821 is the lower end face of the unlocking part 82. By setting the arc-shaped surface 8221 and the inclined surface 8222, its core function is to achieve two-stage... During the transition of motion, when the actuator 8 moves towards the second extreme position 02, the arc-shaped surface 8221 abuts against the stop 9. Utilizing the gradual curvature characteristic, the horizontal thrust is converted into a tangential rotational force on the stop 9, resulting in a smooth initial acceleration and avoiding impact. This ensures that the unlocking part 82 smoothly pushes the stop 9 to the unlocked state. When the actuator 8 continues to move towards the second extreme position 02 to break the dead point position of the support arm assembly 5, the arc-shaped surface 8221 guides the stop 9 smoothly to the inclined surface 8222, preventing the stop 9 from jamming or even breaking. The inclined surface 8222 and the length extension direction of the main body 81 have an angle α, the range of which is 15-2°. The angle at which the stop 9 rotates from the locked state to the unlocked state is 1.7-1.8 times the included angle α. This parameter setting is crucial. By setting the included angle α, it optimizes the efficiency of force transmission and balances the service life of the stop 9 with the unlocking accuracy. If the included angle α is less than 15 degrees, the rotation angle of the stop 9 is less than 1.7 times the included angle α. In this case, the actuator 8 needs a larger stroke to push the stop 9 to rotate the same angle, which will increase the overall structural size, leading to higher production costs and finished product weight. Furthermore, because the rotation angle of the stop 9 is too small, it cannot completely disengage from the follower 10. During the operation of the follower 10, the stop 9 is prone to breakage. If the included angle α is greater than 25 degrees, the rotation angle of the stop 9 is greater than 1.8 times the included angle α. This will cause the stop 9 to bounce when guided from the arc surface 8221 to the inclined surface 8222, resulting in excessive wear of the contact surface of the stop 9 and false triggering of the unlocking signal. Furthermore, because the rotation angle of the stop 9 is too large, it requires the elastic element 91 with greater restoring force to drive it to achieve the locking state of the stop 9. However, this also means that when the actuator 8 pushes the stop 9 to unlock, it requires a greater driving force to push the stop 9, which places higher demands on the strength of the power unit 6 and the actuator 8.

[0072] For details, please refer to the appendix. Figure 7 , 10The stop member 9 is provided with a trigger piece 97. The housing 7 is provided with a first sensor 12 and a second sensor 13 for monitoring the position of the trigger piece 97. The first sensor 12 and the second sensor 13 are optocouplers. When the stop member 9 is in the locked state, the trigger piece 97 is located at the position of the first sensor 12. At this time, the trigger piece 97 blocks the first sensor 12, and the first sensor 12 sends a locking success signal. At this time, the actuator 8 is located at the first extreme position 01. When the stop member 9 is in the unlocked state, the trigger piece 97 is located at the position of the second sensor 13. At this time, the trigger piece 97 is close to but does not block the second sensor 13. When the dead point position is further broken, the trigger piece 97 blocks the second sensor 13, and the second sensor 13 sends an unlocking success signal. At this time, the actuator 8 is located at the second extreme position 02.

[0073] Specifically, the follower 10 is equipped with an angle sensor to monitor its rotation angle, which is used to detect the rotation angle of the support arm assembly 5 in real time and determine the opening height of the curtain 4. It also serves an anti-collision function; when the curtain 4 is being opened, if one support arm assembly 5 is blocked, the angle sensors on both sides can detect the asynchrony, thus obtaining a blocking signal. Alternatively, when the drive mechanism 3 releases the curtain 4, if both left and right supports are blocked, no angle sensor angle change signal will be detected, and this is also identified as blocking.

[0074] For details, please refer to the appendix. Figure 4 , 9 The transmission assembly includes: an input gear 14, fixed to the output shaft of the power unit 6; and a double gear, including a large gear 15 and a small gear 16 coaxially arranged. The large gear 15 meshes with the input gear 14, and the small gear 16 meshes with the unlocking part 82. The pitch circle diameter of the large gear 15 is larger than that of the small gear 16. This arrangement increases torque, avoids vibration transmission, prevents excessive wear in the meshing area, and further improves service life.

[0075] For details, please refer to the appendix. Figure 2To further ensure the flatness of the curtain 4 after unfolding, this application provides two sets of support arm assemblies 5, which are distributed on the left and right sides of the curtain 4. Correspondingly, two sets of lifting control mechanisms are provided. The support arm assembly 5 includes a first support arm 51 and a second support arm 52. One end of the first support arm 51 is hinged to the curtain 4, and the other end is connected to one end of the second support arm 52 via a hinge. The other end of the second support arm 52 is connected to the support arm connector 11. When the curtain 4 is in the retracted state, the first support arm 51 and the second support arm 52 are folded and housed in the outer shell 1. When the curtain 4 is in the fully unfolded state, the first support arm 51 and the second support arm 52 are both rotated 90 degrees relative to the housing 7, and the curtain 4 drives the first support arm 51 and the second support arm 52 to unfold until their length extension directions are parallel and coincident. At this time, the support arm assembly 5 is in the dead point position.

[0076] Specifically, in this embodiment, the external driving force is an elastic member provided at the hinge of the first arm 51 and the second arm 52. The elastic member provides assistance to the first arm 51 and the second arm 52 to achieve the change from a folded state to an unfolded state. The elastic member is a torsion spring or a spring sheet.

[0077] Specific implementation process:

[0078] From the retracted state to the fully extended state of the curtain 4: the actuator 8 is initially in the second limit position 02, the stop 9 is initially in the unlocked state, then the drive mechanism 3 drives the take-up roller 2 to release the curtain 4 downwards until the curtain 4 is released to the fully extended state. Then the power unit 6 drives the actuator 8 to move from the second limit position 02 to the first limit position 01. Then the abutment end 93 disengages from the unlocking part 82, the stop 9 moves from the unlocked state to the locked state, and the locking end 94 engages with the locking part to restrict the movement of the follower 10. At this time, the trigger piece 97 blocks the first sensor 12, the first sensor 12 sends a locking success signal, and then the actuator 8 continues to move in the same direction until the toggle block 102 abuts against the limiting side 8312. At this time, the actuator 8 is in the first limit position 01.

[0079] From the fully unfolded state of the curtain 4 to the retracted state of the curtain 4: the actuator 8 is initially located at the first extreme position 01, and the stop 9 is initially located in the locked state. Then, the power unit 6 drives the actuator 8 to move from the first extreme position 01 to the second extreme position 02. The unlocking part 82 abuts against the abutting end 93 and pushes the stop 9 from the locked state to the unlocked state. The locking end 94 disengages from the follower 10. Then, the actuator 8 continues to move in the same direction until the pushing side 8311 abuts against the lever 102 and pushes the lever 102 to deflect. The lever 102 drives the follower 10 to rotate synchronously. The follower 10 drives the support arm assembly 5 to deflect a certain angle in the direction of curtain 4 retraction through the support arm joint 11, thereby breaking the dead position of the support arm assembly 5. At this time, the trigger piece 97 blocks the second sensor 13. The second sensor 13 sends an unlocking success signal. Then, the drive mechanism 3 drives the winding roller 2 to wind up the curtain 4. At this time, the actuator 8 is located at the second extreme position 02.

[0080] Example 2:

[0081] See attached document Figure 6The difference from Embodiment 1 is that the pushing part 83 is located at the end of the main body 81 away from the unlocking part 82; the follower 10 is provided with a lever 102. When the curtain 4 is in the fully unfolded state, the lever 102 is located on the movement path of the pushing part 83, and the horizontal distance between the lever 102 and the pushing part 83 is greater than the horizontal distance between the unlocking part 82 and the stop member 9. When the actuator 8 moves from the first limit position 01 to the second limit position 02, after the stop member 9 and the follower 10 disengage, the actuator 8 continues to move in the same direction, and the pushing part 83 pushes the lever 102 to deflect in the direction of curtain 4 retraction. It should be noted that the lever 102 and the follower 10 are fastened by fasteners such as screws, bolts, and rivets, or by welding, gluing, snap-fitting, or other methods, or are integral structures formed by processing. When the pushing part 83 moves synchronously to the second limit position 02 with the main body 81, the pushing part 83 directly contacts the lever 102 and pushes the lever 102, or the pushing part 83 contacts the lever 102 through an intermediate component and pushes the lever 102, or a movable intermediate component is provided on the movement path between the pushing part 83 and the lever 102, including but not limited to a slider rail structure, the pushing part 83 first contacts the intermediate component, then pushes the intermediate component to move, and then the intermediate component contacts the lever 102 and pushes the lever 102. The specific operation process is as follows: The power unit 6 drives the actuator 8 to move from the first extreme position 01 to the second extreme position 02. The unlocking part 82 abuts against the stop 9 and pushes the stop 9 from the locked state to the unlocked state. Then the actuator 8 continues to move in the same direction. The pushing part 83 abuts against the toggle block 102 and pushes the toggle block 102 to deflect. The toggle block 102 drives the follower 10 to rotate synchronously. The follower 10 drives the support arm assembly 5 to deflect a certain angle in the direction of curtain retraction through the support arm joint 11, thereby breaking the dead point position of the support arm assembly 5. At this time, the trigger piece 97 blocks the second sensor 13. The second sensor 13 sends an unlocking signal. Then the drive mechanism 3 drives the winding roller 2 to wind up the curtain 4.

[0082] Example 3:

[0083] This utility model provides a vehicle, including the vehicle screen device described in Embodiment 1 or Embodiment 2, and a projector for projecting images onto the screen 4.

[0084] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A vehicle curtain device characterized by comprising: include: outer shell; A curtain assembly, which is disposed within a housing, includes a curtain take-up roller and a drive mechanism, wherein the take-up roller winds the curtain and is connected to the drive mechanism in a transmission manner. The support arm assembly is used to support the curtain. The end of the curtain away from the take-up roller is connected to the first end of the support arm assembly. The second end of the support arm assembly is rotatably configured. During the raising and lowering of the curtain, the first end of the support arm assembly is driven to rotate around the second end of the support arm assembly. When the curtain is in the retracted state, the support arm assembly is housed in the outer shell. A lifting control mechanism includes a power unit and a housing. An actuator, a stop, and a follower are movably disposed within the housing. The actuator is driven by the power unit and has a first and a second limit position along its movement path. The follower is fixedly connected to a support arm connector, which is connected to the second end of a support arm assembly. The support arm assembly drives the follower to move synchronously through the support arm connector. When the actuator moves from the first limit position to the second limit position, the actuator abuts against the stop and pushes the stop from a locked state to an unlocked state, at which point the stop disengages from the follower. When the actuator moves from the second limit position to the first limit position, the actuator releases the limit on the stop member, and the stop member moves from the unlocked state to the locked state. At this time, the stop member engages with the follower member to restrict the movement of the follower member.

2. A vehicle blind device according to claim 1, characterised in that The stop member moves from the unlocked state to the locked state under the action of the elastic member it is connected to.

3. The vehicle curtain device of claim 1, wherein The actuator includes a main body and an unlocking part that move synchronously. The stop is at least partially located on the movement path of the unlocking part. When the unlocking part moves to the second extreme position, the unlocking part abuts against the stop and pushes the stop from the locked state to the unlocked state.

4. A vehicle blind device according to claim 3, wherein The actuator also includes a pushing part that moves synchronously with the actuator, the pushing part being located at the end of the main body away from the unlocking part; The follower is equipped with a lever. When the curtain is fully unfolded, the lever is located on the movement path of the pusher. The horizontal distance between the lever and the pusher is greater than the horizontal distance between the unlocking part and the stop. When the actuator moves from the first limit position to the second limit position, the stop and the follower disengage. The actuator continues to move in the same direction, and the pusher pushes the lever to deflect in the direction of curtain retraction.

5. The vehicle curtain device of claim 3, wherein The actuator also includes a pushing part that moves synchronously with the actuator. The pushing part is a groove formed on the main body. The bottom of the groove is open and the side of the groove closest to the unlocking part is the pushing side. The follower is provided with a lever. When the curtain is fully unfolded, the lever is located inside the groove and the horizontal distance between the lever and the pushing side is greater than the horizontal distance between the unlocking part and the stop. When the actuator moves from the first extreme position to the second extreme position, after the stop and the follower disengage, the actuator continues to move in the same direction, and the pushing side pushes the lever to deflect in the direction of curtain retraction.

6. A vehicle blind device according to claim 5, wherein The side of the groove furthest from the unlocking part is the limiting side. When the curtain is unfolded from the retracted state to the fully unfolded state, the lever moves into the groove and the horizontal distance between the lever and the limiting side is greater than the horizontal distance between the unlocking part and the stop. After the curtain is fully unfolded, the power unit drives the actuator to move from the second limit position to the first limit position. The stop moves from the unlocked state to the locked state. The actuator continues to move in the same direction until the lever abuts against the limiting side.

7. A vehicle blind device according to claim 6, wherein The contact between the lever and the limiting side includes: the limiting side applying a force to the lever, causing the arm assembly to deflect in the direction of curtain unfolding or causing the arm assembly to have a tendency to deflect in the direction of curtain unfolding.

8. A vehicle blind arrangement according to any one of claims 3 to 7, wherein The side of the unlocking part near the stop member is a push-unlocking end, which includes an arc-shaped surface connected to the main body, and an inclined surface is connected to one end of the arc-shaped surface near the unlocking part.

9. A vehicle blind device according to claim 8, wherein The inclined surface has an angle α with the length extension direction of the main body, and the angle α ranges from 15 to 25 degrees. When the stop moves from the locked state to the unlocked state, the angle of rotation is 1.7 to 1.8 times the angle α.

10. A vehicle blind device according to any one of claims 1 to 7, wherein An angle sensor is provided on the follower to monitor its rotation angle.

11. A vehicle curtain airbag device according to any one of claims 1 to 7, characterized by A limiting groove is provided on one side of the stop member, and a limiting post that cooperates with the limiting groove is provided inside the housing; Alternatively, the stop member may be provided with a limiting post, and the housing may be provided with a limiting groove that cooperates with the limiting post; The limiting groove abuts against the limiting post. When the stop changes from the locked state to the unlocked state or from the unlocked state to the locked state, the limiting post and the limiting groove remain in contact, and the contact position moves from one end of the limiting groove to the other end of the limiting groove.

12. A vehicle curtain airbag device according to any one of claims 1 to 7, characterized by The actuator performs linear reciprocating motion or rotary reciprocating motion; the stop component performs rotational or linear reciprocating motion around an axis.

13. A vehicle blind device according to any one of claims 3 to 7, wherein The stop is a pawl structure, which is movably installed inside the housing via a pin. It includes an abutting end and a locking end. The abutting end is located on the movement path of the unlocking part, and the locking end is used to lock with the follower to restrict the movement of the follower. The follower is a ratchet structure, which has at least one slot that engages with the locking end to limit the ratchet rotation angle.

14. A vehicle blind device according to any one of claims 1 to 7, wherein The support arm assembly includes a first support arm and a second support arm. One end of the first support arm is hinged to the curtain, and the other end of the first support arm is connected to one end of the second support arm via a hinge. The other end of the second support arm is connected to a support arm connector. When the curtain is in the retracted state, the first and second support arms are folded. When the curtain is in the fully unfolded state, the first and second support arms are unfolded until their length extension directions are parallel and coincident, and the length extension directions of the first and second support arms are parallel to the curtain lifting direction. At this time, the support arm assembly is in the dead point position.

15. A vehicle blind device according to claim 14, wherein An elastic element is provided at the hinge joint between the first arm and the second arm. The elastic element provides assistance to the first arm and the second arm to achieve the change from a folded state to an unfolded state.

16. A vehicle characterized by comprising: Includes a vehicle screen device as described in any one of claims 1-15; and a projector for projecting images onto the screen.

Images