Screen turnover mechanism

Abstract

The utility model discloses a screen turnover mechanism which comprises an LED screen arranged in a carriage; the two screen rods are arranged on the two sides of the LED screen respectively; the two arc-shaped sliding rails are arranged on the two sides of the LED screen correspondingly, and the two arc-shaped sliding rails are slidably connected with the two screen rods through bearing sliding blocks correspondingly; the tops of the two connecting rods are correspondingly hinged to the side walls of the two screen rods respectively, the bottom of one connecting rod is connected with a main shaft of a motor arranged on the compartment bottom plate, and the bottom of the other connecting rod is connected with a bearing seat arranged on the compartment bottom plate.

Description

TECHNICAL FIELD

[0001] The utility model relates to stage holographic projection equipment technical field, especially relate to screen turnover mechanism. BACKGROUND

[0002] Holographic projection technology is also called virtual imaging technology, which is a recording and reproduction technology for recording and reproducing real three-dimensional images of objects by using interference and diffraction principles. Holographic projection technology can not only produce three-dimensional aerial illusions, but also make the illusions interact with performers to complete performances together and produce shocking performance effects.

[0003] Chinese patent 201210034604.9 discloses a holographic vehicle platform device, in which the projection screen is directly installed at the bottom of the vehicle body, so that the vehicle cabin can only be used for holographic image display and cannot be used for real person performances and other activities, resulting in a large amount of wasted space. UTILITY MODEL CONTENT

[0004] In view of the above technical problems, the utility model provides a holographic screen turnover mechanism.

[0005] In order to achieve the above purpose, the technical scheme of the utility model is as follows:

[0006] The LED screen is arranged in the vehicle cabin.

[0007] The two screen rods are arranged on the two sides of the LED screen.

[0008] The two arc-shaped sliding rails are arranged on the two sides of the LED screen, and the two arc-shaped sliding rails are respectively connected with the two screen rods through bearing sliding blocks.

[0009] The two connecting rods are respectively hingedly connected with the side walls of the two screen rods at the top, and the bottom of one of the connecting rods is connected with the main shaft of the motor arranged on the vehicle cabin floor, and the bottom of the other connecting rod is connected with the bearing seat arranged on the vehicle cabin floor.

[0010] The arc-shaped sliding rail is formed by connecting a plurality of short sliding rail bodies into an arc-shaped structure.

[0011] The side wall of the arc-shaped sliding rail is connected with the inner wall of the frame through a plurality of side edge supports.

[0012] The utility model has the advantages of:

[0013] 1. The multi-segment slide rail design of this utility model reduces processing difficulty, facilitates disassembly and replacement, and allows for adjustment of length and number of segments to adapt to different application scenarios. Its multiple slide rail segments provide smoother movement, reduce vibration and noise, and possess higher load-bearing capacity, making it suitable for heavy-duty applications. The rolling friction pair formed with the bearing has a low coefficient of friction, improving motion efficiency, extending service life, and reducing maintenance costs, making it suitable for various industrial and automated equipment.

[0014] 2. The screen's movement and installation location minimize its footprint within the carriage, allowing for better accommodation of other equipment and significantly improving space utilization. Furthermore, it provides better protection for the screen, preventing displacement due to vehicle movement.

[0015] 3. This utility model can handle a variety of complex application scenarios and realize interaction between reality and virtuality. The mechanism is simple in overall design, and its movement can efficiently complete the switching between two different screen positions.

[0016] 4. This utility model utilizes an LED screen as a performance background without using a holographic projection device. When using a holographic projection device, the LED screen is placed at the rear and used as an information source in conjunction with the holographic projection device for the performance. When holographic projection is required, this utility model can flip the LED screen and lay it flat on the screen support plate at the front of the carriage, with the projection film arranged at a 45-degree angle to the LED screen to achieve holographic projection. At the same time, it can also be combined with live performances inside the carriage to achieve interaction between live actors and virtual elements, thereby enhancing the performance effect.

[0017] 5. This utility model features a reasonable, simple, and clear structure, flexible operation, and free retraction, aiming to improve space utilization efficiency and enhance aesthetics and design. Currently, existing projection vehicle screens are mainly installed above the bottom of the vehicle, resulting in insufficient space utilization. By using an arc-shaped sliding rail in conjunction with a screen rod to vertically suspend the screen to the side wall of the vehicle, not only is space effectively utilized, but a larger stage is also provided for vehicle operation, thus enabling the practical application of live performances and holographic image displays, greatly improving the viewing experience. Furthermore, the curved trajectory of the arc-shaped sliding rail, combined with the initial angle of the screen rod, ensures that the projection screen can be switched from a vertically suspended position to a position parallel to the screen support plate to meet the requirements of holographic image display. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a diagram showing the connection relationship between the arc-shaped slide rail, the bearing slider, and the screen rod of this utility model;

[0020] Reference signs: 1-LED screen, 2-carriage floor, 3-frame, 4-motor, 5-connecting rod, 6-screen rod, 7-bearing slider, 8-arc-shaped sliding rail, 9-side support column, 10-bearing seat. DETAILED DESCRIPTION

[0021] To make the purpose, technical scheme and advantages of the present application more clear and understandable, the present application will be further described in detail below with specific embodiments. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present application. In addition, in the following description, the description of known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present application.

[0022] As shown in Figure 1 and Figure 2 , the screen turnover mechanism comprises: an LED screen 1 arranged in the carriage; two screen rods 6 arranged on both sides of the LED screen 1 respectively; two arc-shaped sliding rails 8 arranged on both sides of the LED screen 1 respectively, and the two arc-shaped sliding rails 8 are slidably connected with the two screen rods 6 through bearing sliders 7 respectively; two connecting rods 5, the top of each connecting rod 5 is hingedly connected with the side wall of the corresponding screen rod 6, and the bottom of one of the connecting rods 5 is connected with the main shaft of a motor 4 arranged on the carriage floor 23, and the bottom of the other connecting rod 5 is connected with a bearing seat 10 arranged on the carriage floor 23. The arc-shaped sliding rail 8 is formed by connecting a plurality of short sliding rail bodies into an arc-shaped structure. The side wall of the arc-shaped sliding rail 8 is connected with the inner wall of the frame 3 through a plurality of side support columns 9.

[0023] When the control device issues an instruction, the screen support plate on one side of the carriage is slowly lowered, the projection film is extended out of the carriage through the telescopic mechanism, after the roof telescopic mechanism completes the predetermined working state, the motor 4 starts to work, drives the screen turnover mechanism to place the LED screen 1 on the screen support plate according to the track of the arc-shaped sliding rail 8, and then the mechanism of the roof releases the holographic film to form a 45° angle with the screen. The working order of the recovery process is opposite to that of the placement process.

[0024] Specifically, when holographic projection display is needed, the connecting rod 5 is driven by the motor 4, the connecting rod 5 drives the screen rod 6 and the LED screen 1 to move along the arc-shaped sliding rail 8, so that the LED screen 1 is horizontally placed on the screen support plate arranged horizontally on one side of the carriage.

[0025] In this system, motor 4 and connecting rod 5 form a revolute joint, and the other end of connecting rod 5 forms a revolute joint with one end of screen rod 6. A portion of screen rod 6 is fixedly connected to LED screen 1. Screen rod 6 and arc-shaped slide rail 8 are connected via bearing slider 7 to form a rolling friction pair, which features low friction, minimal wear, low heat generation, high load-bearing capacity, smooth movement, and good adaptability, thus improving equipment performance and reliability. Arc-shaped slide rail 8 is fixed in position by being fixedly connected to side support column 9. Motor 4 drives connecting rod 5 to rotate, connecting rod 5 to screen rod 6, and screen rod 6 moves along arc-shaped slide rail 8, causing LED screen 1 to rotate. Arc-shaped slide rail 8, located on both sides of the carriage, has a curved trajectory and a multi-segment structure. Its relative position is fixed by side support column 9, offering advantages such as smooth movement, high load-bearing capacity, easy installation, good adaptability, flexibility, and cost-effectiveness. Arc-shaped slide rail 8 determines the movement trajectory of screen rod 6. After being driven by motor 4, LED screen 1 flips inside the carriage following the trajectory of screen rod 6 and curved slide rail 8, and then lands on screen support plate.

[0026] The LED screen 1 has two working states: vertical and horizontal. When the holographic vehicle is used as a stage, the LED screen 1 is in a vertical state, serving as a backdrop. When not in use, the LED screen 1 is normally suspended upright inside the vehicle, also serving as a backdrop for performances. When the holographic vehicle needs to play holographic images, the LED screen 1 is moved along the curved slide rail 8 via a screen flipping mechanism and placed horizontally on the screen support plate. The projection film is arranged at a 45-degree angle to the LED screen 1 to achieve holographic projection.

[0027] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A screen flipping mechanism, characterized in that, include: LED screen (1) is installed inside the carriage; Two screen poles (6) are respectively set on both sides of the LED screen (1); Two arc-shaped slide rails (8) are respectively set on both sides of the LED screen (1), and the two arc-shaped slide rails (8) are slidably connected to the two screen rods (6) through bearing sliders (7); Two connecting rods (5) are respectively hinged to the side walls of two screen rods (6) at their tops. The bottom of one connecting rod (5) is connected to the main shaft of the motor (4) set on the bottom plate (2) of the carriage, and the bottom of the other connecting rod (5) is connected to the bearing seat (10) set on the bottom plate (2) of the carriage.

2. The screen flipping mechanism according to claim 1, characterized in that: The arc-shaped slide rail (8) is formed by connecting multiple short slide rail bodies to form an arc-shaped structure.

3. The screen flipping mechanism according to claim 1, characterized in that: The sidewall of the arc-shaped slide rail (8) is connected to the inner wall of the frame (3) inside the carriage through several side support pillars (9).

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