Holographic-reality double-stage interactive multifunctional holographic vehicle

Abstract

The invention discloses a holographic-reality double-stage interaction multifunctional holographic vehicle which comprises a frame arranged in a carriage; the screen supporting plate is arranged on the opening in one side of the carriage, the bottom of the screen supporting plate is hinged to the corresponding position of the opening, and four foldable supporting legs are arranged at the bottom of the screen supporting plate; the screen overturning mechanism is arranged in the frame, so that the screen can be erected in the compartment to serve as a stage background and can also be flatly laid on the screen supporting plate to serve as a holographic projection source; and the telescopic projection curtain mechanism is arranged in the carriage and located at the top of the frame, so that when holographic image display is needed, a curtain can extend out of the carriage and enter a working posture. The three-dimensional holographic stage can be used as a traditional entity stage for on-site performance of actors, and can also be used as a holographic projection display platform for displaying a three-dimensional holographic image.

Description

Technical Field

[0001] The invention relates to the technical field of stage holographic projection equipment, and in particular to a holographic-reality dual-stage interactive multifunctional holographic vehicle. Background Art

[0002] Holographic projection technology, also known as virtual imaging technology, is a technology that uses the principles of interference and diffraction to record and reproduce the real three-dimensional image of an object. Holographic projection technology can not only produce a three-dimensional aerial phantom, but also enable the phantom to interact with the performer to complete the performance together, producing a shocking performance effect.

[0003] Utility model patent CN202022146626.7 discloses a holographic vehicle stage, which achieves the purpose of holographic projection by building a frame body and installing a projection device on the frame body. However, this technical solution requires manual on-site construction, which is time-consuming and labor-intensive, has poor mobility, cannot achieve rapid transfer and rapid deployment, and cannot achieve holographic-reality dual-stage interaction. Summary of the invention

[0004] In view of the above technical problems, the present invention provides a holographic-reality dual-stage interactive multifunctional holographic car.

[0005] In order to achieve the above object, the technical solution of the present invention is as follows: Holographic-reality dual-stage interactive multifunctional holographic car, including: A frame, arranged in the carriage; The screen support plate is arranged on an opening on one side of the carriage, the bottom of the screen support plate is hinged at a position corresponding to the opening, and four foldable support legs are arranged at the bottom of the screen support plate; The screen flipping mechanism is arranged in the frame, so that the screen can be placed inside the carriage as a stage background, or laid flat on the screen support plate as a holographic projection source; The retractable projection screen mechanism is arranged in the carriage and located at the top of the frame, so that when a holographic image display is required, the screen can be extended from the carriage and put into a working posture.

[0006] The screen flipping mechanism comprises: LED screen; Two screen poles are set on both sides of the LED screen; Two arc-shaped slide rails are respectively arranged on both sides of the LED screen, and the two arc-shaped slide rails are respectively slidably connected with the two screen rods through bearing sliders; The tops of the two connecting rods are respectively hinged to the side walls of the two screen rods, and the bottom of one of the connecting rods is connected to the main shaft of the motor arranged on the car floor, and the bottom of the other connecting rod is connected to the bearing seat arranged on the car floor.

[0007] The arc-shaped slide rail is composed of a plurality of short slide rail bodies connected to each other to form an arc-shaped structure.

[0008] The side wall of the arc-shaped slide rail is connected to the inner wall of the frame through a plurality of side supports.

[0009] The telescopic projection screen mechanism comprises: Two long retractable ceiling rails arranged parallel to each other are respectively arranged on both sides of the top of the frame; Two telescopic ceiling middle rails arranged parallel to each other are respectively slidably connected with the two telescopic ceiling long rails; Two telescopic ceiling inner tracks arranged parallel to each other are respectively slidably connected with two telescopic ceiling middle tracks, and the tail ends of the two telescopic ceiling inner tracks are connected to each other through a crossbeam, and the heads are respectively equipped with a horizontal curtain reel through a support plate; The telescopic component is arranged between two long telescopic ceiling tracks, and its telescopic end is connected to the crossbeam, so that the curtain reel can be pushed out of the carriage when it moves.

[0010] The invention also comprises a film stretching assembly, which is arranged at the rail heads in the two telescopic ceilings and is used for unfolding the projection film on the screen reel.

[0011] The membrane stretching assembly comprises: Two torque motors are respectively arranged on two support plates; Two curtain drive rods, the tail ends of which are respectively connected to the drive rods of the two torque motors; Two curtain follower rods, whose tail ends are respectively hinged to the heads of two curtain driving rods, and the heads are respectively hinged to the two ends of the horizontal curtain bottom rod; The bottom bar of the screen is connected to the head of the projection film, so that the bottom bar of the screen can unfold or retract the projection film when in motion; Among them, after the projection film is unfolded, the bottom rod of the screen can overlap with the screen pull rod axis on the floor of the car, so that the projection film can form a 45-degree angle with the screen support plate.

[0012] The telescopic assembly comprises: Electric push rods are placed horizontally at the end of the two long tracks of the retractable ceiling; The bottom rod of the ceiling is horizontally placed at the tail end of the two telescopic ceiling long rails, and a slide rail is arranged on it, and the telescopic rod of the electric push rod is slidably connected to the slide rail; The scissor-type telescopic member is formed by mutually hingedly connecting a telescopic ceiling driving rod, a telescopic ceiling rod No. 1, a telescopic ceiling rod No. 2 and a telescopic ceiling driven rod; Among them, one end of the telescopic ceiling pull rod No. 1 is hinged at the bottom of the electric push rod; one end of the telescopic ceiling driving pull rod is hinged on the telescopic rod of the electric push rod; the head of the telescopic ceiling pull rod No. 2 is hinged at one end of the crossbeam, and the head of the telescopic ceiling driven pull rod is connected with the slide rail on the other end of the crossbeam.

[0013] The telescopic ceiling middle track is provided with a plurality of bearings, and sliding on the telescopic ceiling long track is achieved through the bearings; the telescopic ceiling inner track is provided with a plurality of bearings, and sliding on the telescopic ceiling middle track is achieved through the bearings.

[0014] The present invention also includes: The rain shelter is horizontally arranged at the lower part of the inner tracks of the two telescopic ceilings, so that when the inner tracks of the two telescopic ceilings are pushed out, the rain shelter can also be pushed out and placed on the upper part of the screen support plate.

[0015] The beneficial effects of the present invention are: 1. The telescopic projection screen mechanism of the present invention can be extended outwards to combine with the stage expansion to make the stage and projection more integrated, and can be adjusted to the best position and angle according to the projection content and performance requirements to ensure that it can adapt to the adverse effects of extreme weather. The present invention not only has the two major functions of holographic content playback and stage performance, but also can flexibly combine the two to achieve a perfect combination of performance and display, providing a holographic-reality dual stage interaction. At the same time, since all projection equipment is integrated in the car, the mobility of the present invention is improved, and it can be quickly moved and deployed.

[0016] 2. The present invention can be used as a traditional physical stage for actors to perform live, and can also be used as a display platform for holographic projection to present three-dimensional holographic images. Compared with traditional stage layouts, holographic technology can save a lot of costs at the virtual level. For example, a large number of scenery and props are no longer needed, thus reducing performance costs. In addition, during the performance, the present invention allows actors to interact with holographic images, and the on-site host can host through the on-site stage, combined with the holographic projection content to create new performance forms and visual effects. The holographic car can quickly change the stage layout and performance content according to different performance requirements.

[0017] 3. The present invention not only has the two core functions of holographic content playback and stage performance, but also can flexibly combine the two to achieve a perfect combination of performance and display, bringing a more colorful audio-visual feast to the audience. The present invention can reduce the time of on-site layout and disassembly, reduce the complexity of performance preparation work, and improve performance efficiency through holographic technology. The present invention has good structure and high flexibility, improves performance efficiency and reduces performance costs.

[0018] 4. The present invention can not only provide a broad performance stage for actors and improve the performance effect, but also realize the function of combining holography and reality through the interaction with the on-site host through holographic projection, and create a unique atmosphere for the audience to feel the integration of the on-site and virtual worlds.

[0019] 5. The design of the retractable projection cloth can optimize the use of space, making the display device more portable and improving the device's adaptability in different venues. The device is not only a display tool, but also a cultural recording platform, which preserves traditional culture through digital means to prevent it from disappearing in the process of modernization.

[0020] 6. The present invention combines the functions of holographic projection and live performance. Through modern technologies such as holographic, three-dimensional, and interactive projection, the audience can experience rural culture more immersively, which increases the fun and attractiveness of cultural communication. Holographic technology brings a strong visual impact. The audience can experience rural culture in an all-round way from a 360-degree perspective, which undoubtedly increases the attractiveness and modernity of cultural heritage.

[0021] 7. The present invention focuses on using holographic projection technology to record and reproduce the three-dimensional images of intangible cultural heritage programs through the principles of interference and diffraction, creating a shocking performance effect, aiming to provide an efficient and convenient display platform for urban and rural cultural exchanges. The present invention adopts a retractable projection cloth and holographic three-dimensional playback technology, using pre-recorded provincial intangible cultural heritage programs and playing them through holographic projection technology. At the same time, the holographic car can realize a process of holographic-reality dual-stage interaction. In addition, the design of the present invention takes into account the rapid conversion of areas and the construction of stages, making it an effective tool for connecting urban and rural areas and promoting cultural exchanges. The present invention can effectively combine cultural heritage with modern technology, and can also achieve a diversified display of rural culture through technological innovation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 is a side view of the present invention; Figure 3 is a top view of the present invention; Figure 4 It is a structural schematic diagram of the screen flipping mechanism of the present invention; Figure 5 It is a structural schematic diagram of the telescopic projection screen mechanism of the present invention; Figure 6 is a schematic diagram of the connection of the curtain reel of the present invention; Figure 7 is a schematic diagram of the membrane stretching assembly of the present invention; Figure 8 It is a connection relationship diagram of the arc-shaped slide rail, the bearing slider and the screen rod of the present invention; Figure numerals: 1-electric push rod, 2-ceiling bottom rod, 3-telescopic ceiling driving rod, 4-telescopic ceiling rod No. 1, 5-telescopic ceiling rod No. 2, 6-telescopic ceiling driven rod, 7-telescopic ceiling long track, 8-telescopic ceiling middle track, 9-telescopic ceiling inner track, 10-limiting block, 11-limiting block, 12-bearing, 13-crossbeam, 14-awning, 15-curtain driven rod, 16-curtain bottom rod, 17-projection film, 18-torque motor, 19-support plate, 20-curtain reel, 21-curtain driving rod, 22- LED screen, 23-carriage floor, 24-screen pull rod shaft, 25-motor, 26-connecting rod, 27-bearing slider, 28-arc slide rail, 29-side support, 30-bearing seat, 31-screen rod, 32-screen support plate, 33-support leg, 34-frame. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with specific embodiments. It should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present invention. 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 invention.

[0024] like Figures 1 to 3 As shown, the holographic-reality dual-stage interactive multifunctional holographic car includes: a frame 34, which is arranged in the car; a screen support plate 32, which is arranged on an opening on one side of the car, and the bottom of the screen support plate 32 is hinged at the corresponding position of the opening, and four foldable support legs 33 are arranged at the bottom of the screen support plate 32; a screen flipping mechanism, which is arranged in the frame 34, so that the screen can be stood inside the car as a stage background, and can also be laid flat on the screen support plate 32 as a holographic projection source; a retractable projection screen mechanism, which is arranged in the car and is located on the top of the frame 34, so that when a holographic image display is required, the screen can be extended from the car and enter a working posture.

[0025] like Figure 2 , Figure 4 and Figure 8 As shown, the screen flipping mechanism includes: an LED screen 22; two screen rods 31, respectively arranged on both sides of the LED screen 22; two arc-shaped slide rails 28, respectively arranged on both sides of the LED screen 22, and the two arc-shaped slide rails 28 are slidably connected to the two screen rods 31 through bearing sliders 27; two connecting rods 26, the tops of which are respectively hinged to the side walls of the two screen rods 31, and the bottom of one of the connecting rods 26 is connected to the main shaft of the motor 25 arranged on the car floor 23, and the bottom of the other connecting rod 26 is connected to the bearing seat 30 arranged on the car floor 23.

[0026] like Figure 2 and Figure 4 As shown, the arc-shaped slide rail 28 is composed of a plurality of short slide rail bodies connected to each other to form an arc-shaped structure.

[0027] like Figure 4 As shown, the side wall of the arc-shaped slide rail 28 is connected to the inner wall of the frame 34 through a plurality of side supports 29 .

[0028] like Figure 5 and Figure 6 As shown, the telescopic projection screen mechanism includes: two telescopic ceiling long rails 7 arranged in parallel with each other, which are respectively arranged on both sides of the top of the frame 34; two telescopic ceiling middle rails 8 arranged in parallel with each other, which are respectively slidably connected to the two telescopic ceiling long rails 7; two telescopic ceiling inner rails 9 arranged in parallel with each other, which are respectively slidably connected to the two telescopic ceiling middle rails 8, and the tail ends of the two telescopic ceiling inner rails 9 are connected to each other through a cross beam 13, and the heads are respectively installed with a horizontal curtain reel 20 through a support plate 19; a telescopic component is arranged between the two telescopic ceiling long rails 7, and its telescopic end is connected to the cross beam 13, so that it can push the curtain reel 20 out of the car when it is in action.

[0029] like Figures 5 to 7 As shown, the present invention also includes a film stretching assembly, which is arranged at the head of the two telescopic ceiling inner rails 9 and is used to unfold the projection film 17 on the screen reel 20. The film stretching assembly includes: two torque motors 18, which are respectively arranged on two support plates 19; two screen driving rods 21, whose tail ends are respectively connected to the driving rods of the two torque motors 18; two screen driven rods 15, whose tail ends are respectively hinged to the heads of the two screen driving rods 21, and the heads are respectively hinged to the two ends of the horizontally placed screen bottom rod 16; wherein the screen bottom rod 16 is connected to the head of the projection film 17, so that the screen bottom rod 16 can unfold or retract the projection film 17 when it is in motion; wherein, after the projection film 17 is unfolded, the screen bottom rod 16 can overlap with the screen rod shaft 24 on the car bottom plate 23, so that the projection film 17 can form a 45-degree angle with the screen support plate 32.

[0030] like Figures 5 to 7As shown, the telescopic assembly includes: an electric push rod 1, which is horizontally placed at the tail end of two telescopic ceiling long rails 7; a ceiling bottom rod 2, which is horizontally placed at the tail end of two telescopic ceiling long rails 7, on which a slide rail is arranged, and the telescopic rod of the electric push rod 1 is slidably connected to the slide rail; a scissor-type telescopic part, which is formed by a telescopic ceiling driving rod 3, a telescopic ceiling rod No. 1 4, a telescopic ceiling rod No. 2 5 and a telescopic ceiling driven rod 6 which are hinged to each other; wherein, one end of the telescopic ceiling rod No. 1 4 is hinged to the bottom of the electric push rod 1; one end of the telescopic ceiling driving rod 3 is hinged to the telescopic rod of the electric push rod 1; the head of the telescopic ceiling rod No. 2 5 is hinged to one end of the crossbeam 13, and the head of the telescopic ceiling driven rod 6 is matched with the slide rail on the other end of the crossbeam 13.

[0031] like Figure 5 As shown, the rear ends of the telescopic ceiling middle track 8 and the telescopic ceiling inner track 9 are both provided with limit blocks 10, and the telescopic ceiling middle track 8 is provided with a limit block 11 so that it will not exceed the moving range during sliding; the telescopic ceiling middle track 8 is provided with a plurality of bearings 12, and sliding on the telescopic ceiling long track 7 is achieved through the bearings 12, and the telescopic ceiling inner track 9 is provided with a plurality of bearings 12, and sliding on the telescopic ceiling middle track 8 is achieved through the bearings 12.

[0032] like Figure 5 As shown, the present invention also includes: a rain shelter 14, which is horizontally arranged at the lower part of the two telescopic ceiling inner tracks 9, so that when the two telescopic ceiling inner tracks 9 are pushed out, the rain shelter 14 can also be pushed out and placed on the upper part of the screen support plate 32.

[0033] When the present invention is in use, the screen support plate 32 is mainly connected to the roof and chassis of the carriage, and is also used to carry the LED screen 22. The chassis is connected to the running wheels to drive the entire holographic car to move. The holographic car is connected to the front of the car through a locking hook to drag the holographic car to move.

[0034] When a performance is required, a servo motor drive is provided at the connection between the carriage and the screen support plate 32. The servo motor drives the screen support plate 32 to unfold, and the four supporting legs 33 on the screen support plate 32 are used to support the screen support plate 32 to form a platform. At this time, the actors perform in the carriage.

[0035] When a holographic projection display is required, the screen flipping mechanism drives the connecting rod 26 through the motor 25, and the connecting rod 26 drives the screen rod 31 and the LED screen 22 to move along the arc slide rail 28, so that the LED screen 22 is placed horizontally on the screen support plate 32. Then, the telescopic rod of the electric push rod 1 extends out, driving the telescopic ceiling driving rod 3 to move, so that the scissor-type telescopic part starts to move, and the crossbeam 13 and the two telescopic ceiling inner tracks 9 are pushed out of the car. Since the awning 14 is horizontally arranged at the lower part of the two telescopic ceiling inner tracks 9, the awning 14 is also pushed out of the car and finally placed on the upper part of the screen support plate 32. The design of the awning 14 is intended to protect the LED screen 22 and the projection film 17. Then, the film stretching assembly starts to move, and the two torque motors The driving rod 18 drives the two curtain driving rods 21 to open outwards. At this time, the two curtain driven rods 15 hinged thereto extend downward with the curtain bottom rod 16. Since the head of the projection film 17 on the curtain reel 20 is installed on the curtain bottom rod 16, when the curtain bottom rod 16 extends downward, the projection film 17 will be pulled out and unfolded. Finally, the curtain bottom rod 16 is overlapped on the screen rod shaft 24, so that a 45-degree angle is formed between the projection film 17 and the LED screen 22 to realize holographic projection. Among them, a curtain rewinding assembly is provided on the curtain reel 20, and the tail of the projection film 17 is connected to the curtain rewinding assembly. When the projection film 17 needs to be retracted, the film stretching assembly can cooperate with the curtain rewinding assembly to roll the projection film 17 back onto the curtain reel 20.

[0036] The screen rewinding assembly may be equipped with a synchronous motor of a remote controller, and the remote controller sends a command to the synchronous motor, and the motor operates. The rotation of the motor is transmitted to the screen reel 20 through a transmission device to achieve the rewinding of the projection film 17. The forward and reverse rotation functions of the synchronous motor can also be used in conjunction with the film stretching assembly to unfold the projection film 17.

[0037] Among them, the motor 25 forms a revolving pair with the connecting rod 26, the other end of the connecting rod 26 forms a revolving pair with one end of the screen rod 31, a part of the screen rod 31 forms a fixed connection with the LED screen 22, and the screen rod 31 is connected to the arc-shaped slide rail 28 through the bearing slider 27 to form a rolling friction pair, which has low friction, less wear, low heat generation, strong bearing capacity, smooth movement and good adaptability to improve the performance and reliability of the equipment. Among them, the arc-shaped slide rail 28 is fixed in relative position by being fixed with the side support 29. The motor 25 drives the connecting rod 26 to rotate, and the connecting rod 26 is connected to the screen rod 31. The screen rod 31 moves along the arc-shaped slide rail 28, driving the LED screen 22 to flip. The arc-shaped slide rail 28 is located on the front and rear sides of the carriage, and the overall curved track is a multi-stage structure. At the same time, the relative position is fixed by the side support 29, which has the advantages of smooth movement, strong bearing capacity, simple installation, good adaptability, flexibility and cost-effectiveness. The arc-shaped slide rail 28 determines the movement track of the screen rod 31. After being driven by the motor 25 , the LED screen 22 is turned over inside the carriage as limited by the track of the screen rod 31 and the arc-shaped slide rail 28 , and then falls onto the screen support plate 32 .

[0038] Among them, the LED screen 22 has two working states: vertical and horizontal. When the holographic car is used as a stage, the LED screen 22 is in a vertical state and serves as the background wall of the stage. At this time, since the screen flip mechanism is not working, the LED screen 22 is normally hung upright in the car and can be used as a stage background wall for actors to perform in the car. When the holographic car needs to play a holographic image, the LED screen 22 is moved along the curved slide rail 28 through the screen flipping mechanism and placed horizontally on the screen support plate 32. The projection film 17 is finally formed into a working state in which the projection film 17 and the LED screen 22 are at an angle of 45 degrees through the telescopic projection screen mechanism and the film stretching component, thereby realizing holographic projection. In addition, the angle between the projection film 17 and the LED screen 22 can be realized by the telescopic amount of the two telescopic ceiling inner tracks 9 of the telescopic projection screen mechanism when they are pushed out to the outside of the car, that is, the more the two telescopic ceiling inner tracks 9 extend outward, the smaller the angle between the projection film 17 and the LED screen 22 becomes, and the less they extend out, the larger the angle becomes, thereby ensuring that the audience can obtain the best visual effect at different angles. At the same time, it can also make the size and proportion of the projection picture perfectly fit the stage performance, so that the audience can obtain a clearer projection image.

[0039] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the appended claims, or the equivalent forms of such scope and boundaries.

Claims

1. Holographic-reality dual-stage interactive multifunctional holographic car, characterized by: include: A frame (34) is arranged in the carriage; A screen support plate (32) is arranged on an opening on one side of the carriage, the bottom of the screen support plate (32) is hinged to a position corresponding to the opening, and four foldable support legs (33) are arranged on the bottom of the screen support plate (32); A screen flipping mechanism is arranged in the frame (34), so that the screen can be placed upright inside the carriage as a stage background, or can be laid flat on the screen support plate (32) as a holographic projection source; A telescopic projection screen mechanism is arranged in the carriage and located on the top of the frame (34), so that when a holographic image display is required, the screen can be extended from the carriage and put into a working posture.

2. The holographic-reality dual-stage interactive multifunctional holographic vehicle according to claim 1 is characterized in that: The screen flipping mechanism comprises: LED screen (22); Two screen rods (31) are respectively arranged on both sides of the LED screen (22); Two arc-shaped slide rails (28) are respectively arranged on both sides of the LED screen (22), and the two arc-shaped slide rails (28) are slidably connected to the two screen rods (31) via bearing sliders (27); The tops of the two connecting rods (26) are respectively hinged to the side walls of the two screen rods (31), and the bottom of one of the connecting rods (26) is connected to the main shaft of the motor (25) arranged on the carriage floor (23), and the bottom of the other connecting rod (26) is connected to the bearing seat (30) arranged on the carriage floor (23).

3. The holographic-reality dual-stage interactive multifunctional holographic vehicle according to claim 2 is characterized by: The arc-shaped slide rail (28) is composed of a plurality of short slide rail bodies connected to each other to form an arc-shaped structure.

4. The holographic-reality dual-stage interactive multifunctional holographic vehicle according to claim 2 is characterized by: The side wall of the arc-shaped slide rail (28) is connected to the inner wall of the frame (34) via a plurality of side supports (29).

5. The holographic-reality dual-stage interactive multifunctional holographic vehicle according to claim 1 is characterized in that: The telescopic projection screen mechanism comprises: Two long telescopic ceiling rails (7) arranged parallel to each other, respectively arranged on both sides of the top of the frame (34); Two telescopic ceiling middle rails (8) arranged parallel to each other are respectively slidably connected to the two telescopic ceiling long rails (7); Two telescopic ceiling inner rails (9) arranged parallel to each other are respectively slidably connected to two telescopic ceiling middle rails (8), and the tail ends of the two telescopic ceiling inner rails (9) are connected to each other via a crossbeam (13), and the heads are respectively provided with a horizontal curtain reel (20) via a support plate (19); The telescopic assembly is arranged between two long telescopic ceiling rails (7), and its telescopic end is connected to the crossbeam (13), so that when it moves, the curtain reel (20) can be pushed out of the carriage.

6. The holographic-reality dual-stage interactive multifunctional holographic vehicle according to claim 5 is characterized in that: It also includes a film stretching assembly, which is arranged at the head of the two telescopic ceiling inner rails (9) and is used to unfold the projection film (17) on the curtain reel (20).

7. The holographic-reality dual-stage interactive multifunctional holographic vehicle according to claim 6 is characterized in that: The membrane stretching assembly comprises: Two torque motors (18) are respectively arranged on two support plates (19); Two curtain drive rods (21), the tail ends of which are respectively connected to the drive rods of two torque motors (18); Two curtain driven pull rods (15), whose tail ends are respectively hinged to the heads of two curtain driving pull rods (21), and whose heads are respectively hinged to the two ends of the horizontal curtain bottom rod (16); The bottom rod (16) of the screen is connected to the head of the projection film (17), so that the bottom rod (16) of the screen can unfold or retract the projection film (17) when in motion; After the projection film (17) is unfolded, the bottom rod (16) of the screen can overlap with the screen pull rod shaft (24) on the carriage bottom plate (23), so that the projection film (17) can form an angle of 45 degrees with the screen support plate (32).

8. The holographic-reality dual-stage interactive multifunctional holographic vehicle according to claim 5 is characterized in that: The telescopic assembly comprises: An electric push rod (1) is horizontally placed at the rear of two telescopic ceiling long rails (7); The ceiling bottom rod (2) is horizontally placed at the rear of the two telescopic ceiling long rails (7), and a slide rail is arranged on the bottom rod, and the telescopic rod of the electric push rod (1) is slidably connected to the slide rail; The scissor-type telescopic member is formed by mutually hingedly connecting a telescopic ceiling driving rod (3), a telescopic ceiling rod No. 1 (4), a telescopic ceiling rod No. 2 (5) and a telescopic ceiling driven rod (6); Among them, one end of the telescopic ceiling tie rod No. 1 (4) is hinged to the bottom of the electric push rod (1); one end of the telescopic ceiling driving tie rod (3) is hinged to the telescopic rod of the electric push rod (1); the head of the telescopic ceiling tie rod No. 2 (5) is hinged to one end of the cross beam (13), and the head of the telescopic ceiling driven tie rod (6) is connected to the slide rail on the other end of the cross beam (13).

9. The holographic-reality dual-stage interactive multifunctional holographic vehicle according to claim 5 is characterized in that: The telescopic ceiling middle track (8) is provided with a plurality of bearings (12), and sliding on the telescopic ceiling long track (7) is achieved through the bearings (12); the telescopic ceiling inner track (9) is provided with a plurality of bearings (12), and sliding on the telescopic ceiling middle track (8) is achieved through the bearings (12).

10. The holographic-reality dual-stage interactive multifunctional holographic vehicle according to claim 5 is characterized in that: Also includes: The rain shelter (14) is horizontally arranged at the bottom of the two telescopic ceiling inner tracks (9), so that when the two telescopic ceiling inner tracks (9) are pushed out, the rain shelter (14) can also be pushed out and placed on the top of the screen support plate (32).

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