A foldable portable holographic projection device

Abstract

This utility model relates to the technical field of projection equipment accessories, and in particular to a foldable portable holographic projection device. The foldable portable holographic projection device provided by this utility model solves the technical problem that existing projection devices cannot levitate projected content. A foldable portable holographic projection device includes a housing; a reflective glass rotatably disposed within the housing; and a color display screen rotatably disposed within the housing, with the color display screen and the reflective glass positioned opposite each other. By setting the color display screen and the reflective glass to form a certain angle between them, a three-dimensional levitation visual effect of the holographic image in the air is achieved. That is, the projected content can present a three-dimensional levitation visual effect in the air, effectively optimizing display performance and enhancing visual appeal. The housing is foldable, making it easy to carry and frequently deployed in different locations.

Description

Technical Field

[0001] This utility model relates to the technical field of projection equipment accessories, and in particular to a foldable portable holographic projection device. Background Technology

[0002] A multimedia lectern is a product that integrates a lectern with a computer, multimedia control system, video display stand, audio equipment, audio-visual converter, and other electronic products. As a lectern, the multimedia lectern is designed to meet the standards of a regular lectern and incorporates ergonomic principles to suit the needs of teachers. In addition to its function as a regular lectern, it integrates a computer and a monitor on its desktop for teachers to display courseware.

[0003] In addition to electronic data, teachers often need to present and explain handwritten lesson plans or test papers in their courseware. This requires the use of projection equipment, which typically includes a projector and a screen. However, current screens are mostly flat and cannot display the projected content in a floating manner, thus degrading the display effect.

[0004] Therefore, existing projection devices have the technical problem of being unable to display the projected content in a floating manner. Utility Model Content

[0005] This invention provides a foldable portable holographic projection device, which solves the technical problem that existing projection devices cannot suspend and display the projected content.

[0006] Some implementation schemes for solving the above-mentioned technical problems include:

[0007] A foldable portable holographic projection device includes a housing;

[0008] A reflective glass, which is rotatably disposed within the housing;

[0009] The color display screen is rotatably disposed within the housing, and the color display screen is disposed opposite to the reflective glass;

[0010] The box is a foldable box, and a light-shielding cavity is formed inside the box. The reflective glass and the color display screen are both located inside the light-shielding cavity.

[0011] Preferably, the box body includes a bottom plate, a top plate, a rear plate, a first side plate, and a second side plate. The top plate is disposed on the bottom plate through the rear plate, and the top plate is rotatably connected to the rear plate, and the rear plate is rotatably connected to the bottom plate.

[0012] The first side plate is rotatably connected to the bottom plate, the second side plate is rotatably connected to the bottom plate, the reflective glass is rotatably connected to the top plate, and the color display screen is rotatably connected to the bottom plate;

[0013] The bottom plate, the top plate, the rear plate, the first side plate, and the second side plate form the light-shielding cavity.

[0014] Preferably, the lower ends of the first side plate and the second side plate are rotatably connected to the bottom plate via flexible connecting pieces, and the upper ends of the first side plate and the second side plate are adsorbed onto the top plate via adsorption components.

[0015] Preferably, the adsorption assembly includes a first magnet disposed on the top plate, and both the first side plate and the second side plate are provided with a second magnet that is attracted to the first magnet.

[0016] Preferably, both the first side plate and the second side plate are folding plates, each including a first part and a second part, the second part being connected to the bottom plate and in contact with the top plate, and the first part being rotatably connected to the second part.

[0017] Preferably, the first part and the second part are connected by a flexible connecting piece.

[0018] Preferably, the box body is provided with a handle.

[0019] Preferably, the top plate is provided with a receiving groove for accommodating the reflective glass, and the thickness of the reflective glass is not greater than the depth of the receiving groove.

[0020] Preferably, the base plate is provided with a groove to accommodate the color display screen, and the thickness of the color display screen is not greater than the depth of the groove.

[0021] Preferably, both the reflective glass and the color display screen are rotatably connected to the housing via a rotating shaft. The housing is provided with a shaft hole that mates with the rotating shaft, and a damping layer is provided between the rotating shaft and the shaft hole.

[0022] Compared with the prior art, the present invention has the following advantages:

[0023] By setting up a color display screen and a reflective glass, and creating a certain angle between them, a three-dimensional levitation visual effect is achieved, making the holographic image appear to float in the air. In other words, the projected content can present a three-dimensional levitation visual effect in the air, effectively optimizing display performance and enhancing its appeal.

[0024] The box is a folding box, which can be deployed and stored by a single person. When folded, the box is only the size of an A3 sheet of paper. It is lightweight, has no sharp corners, and is easy to carry and deploy in different locations. It is especially suitable for mobile teaching, exhibitions and performances. Attached Figure Description

[0025] For illustrative purposes, several embodiments of the present invention are illustrated in the following figures. These figures are incorporated herein by reference and form part of the detailed description. In some cases, well-known structures and components are shown in block diagram form to avoid obscuring the concept of the subject matter of the present invention.

[0026] Figure 1 This is a schematic diagram of the first angle when the present invention is in use.

[0027] Figure 2 This is a schematic diagram of the second angle when the present invention is in use.

[0028] Figure 3 This is a schematic diagram of the first angle when the present invention is unfolded.

[0029] Figure 4 This is a schematic diagram showing the second angle of the invention when unfolded. For clarity, Figures 1 to 4 The handle is not shown.

[0030] Figure 5 This is a schematic diagram of the first angle after the present invention is folded.

[0031] Figure 6 This is a schematic diagram of the second angle after the present invention is folded.

[0032] As shown in the figure:

[0033] 1. Box body; 11. Light-proof cavity; 12. Bottom plate; 121. Groove; 13. Top plate; 131. First magnet; 132. Receiving slot; 14. Back plate; 15. First side plate; 16. Second side plate; 17. Second magnet; 18. First part; 19. Second part; 101. Handle.

[0034] 2. Reflective glass.

[0035] 3. Color display screen. Detailed Implementation

[0036] The specific embodiments shown below are intended to describe various configurations of the subject matter of this invention and are not intended to represent the only configuration in which the subject matter of this invention can be practiced. The specific embodiments include detailed descriptions intended to provide a thorough understanding of the subject matter of this invention. However, it will be clear and apparent to those skilled in the art that the subject matter of this invention is not limited to the specific details shown herein and can be practiced without these specific details.

[0037] Understandably, in this document, relational terms such as “first” and “second” are intended to distinguish one entity or operation from another, and are not intended to expressly or imply any actual relationship or order between these entities or operations.

[0038] The terms “comprising,” “including,” or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase “comprising one…” does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0039] Reference Figures 1 to 6 As shown, a foldable portable holographic projection device includes a housing 1;

[0040] Reflective glass 2, which is rotatably disposed within the housing 1;

[0041] The color display screen 3 is rotatably disposed inside the housing 1, and the color display screen 3 is disposed opposite to the reflective glass 2;

[0042] The box body 1 is a folding box body, and a light-shielding cavity 11 is formed inside the box body 1. The reflective glass 2 and the color display screen 3 are both located inside the light-shielding cavity 11.

[0043] In some embodiments, the color display screen 3 can be a high color display screen 3, and the reflective glass 2 can be a high reflective glass 2.

[0044] In practice, the color display screen 3 can rotate a certain angle relative to the box 1 and remain at the target angle, and the reflective glass 2 can also rotate a certain angle relative to the box 1 and remain at the target position. Usually, a stable 45° angle is formed between the color display screen 3 and the reflective glass 2 to achieve the three-dimensional floating visual effect of the holographic image in the air.

[0045] Understandably, box 1 should be made of light-blocking material, that is, box 1 should be made of non-transparent material.

[0046] In some embodiments, the box body 1 includes a bottom plate 12, a top plate 13, a rear plate 14, a first side plate 15, and a second side plate 16. The top plate 13 is disposed on the bottom plate 12 through the rear plate 14. The top plate 13 is rotatably connected to the rear plate 14, and the rear plate 14 is rotatably connected to the bottom plate 12.

[0047] The first side plate 15 is rotatably connected to the bottom plate 12, the second side plate 16 is rotatably connected to the bottom plate 12, the reflective glass 2 is rotatably connected to the top plate 13, and the color display screen 3 is rotatably connected to the bottom plate 12;

[0048] The bottom plate 12, the top plate 13, the rear plate 14, the first side plate 15, and the second side plate 16 form the light-shielding cavity 11.

[0049] In some embodiments, the lower ends of the first side plate 15 and the second side plate 16 are rotatably connected to the bottom plate 12 via flexible connecting pieces, and the upper ends of the first side plate 15 and the second side plate 16 are adsorbed onto the top plate 13 via adsorption components.

[0050] In some embodiments, the flexible connecting piece can be a piece of cloth, or it can be a flexible sheet material such as a plastic sheet.

[0051] Reference Figures 1 to 6 As shown, in some embodiments, the flexible connecting piece can also be replaced by a rotating shaft. Alternatively, the flexible connecting piece can also be replaced by a ring. That is, the first side plate 15 and the second side plate 16 are both connected to the base plate 12 through a ring, and the first side plate 15 and the second side plate 16 can rotate relative to the ring.

[0052] In some embodiments, the adsorption assembly includes a first magnet 131 disposed on the top plate 13, and the first side plate 15 and the second side plate 16 are each provided with a second magnet 17 that is adsorbed to the first magnet 131.

[0053] In some embodiments, the first magnet 131 or the second magnet 17 may also be replaced with a material that can be attracted by a magnet.

[0054] In some embodiments, the first side plate 15 and the second side plate 16 are both folding plates. The first side plate 15 and the second side plate 16 each include a first part 18 and a second part 19. The second part 19 is connected to the bottom plate 12 and contacts the top plate 13. The first part 18 and the second part 19 are rotatably connected.

[0055] In some embodiments, the first portion 18 and the second portion 19 are both connected by a flexible connecting piece.

[0056] Understandably, the first part 18 and the second part 19 can also be rotatably connected by a structure such as a rotating shaft.

[0057] In some embodiments, the box body 1 is provided with a handle 101.

[0058] The handle 101 can be glued to the top plate 13 and / or the bottom plate 12. The handle 101 can also be fixed to the top plate 13 and / or the bottom plate 12 with screws.

[0059] The handle 101 can be a split structure so that the handle can be fixed to the top plate 13 and the bottom plate 12 at the same time.

[0060] In some embodiments, the top plate 13 is provided with a receiving groove 132 for accommodating the reflective glass 2, wherein the thickness of the reflective glass 2 is not greater than the depth of the receiving groove 132.

[0061] In some embodiments, the base plate 12 is provided with a groove 121 for accommodating the color display screen 3, and the thickness of the color display screen 3 is not greater than the depth of the groove 121.

[0062] In some embodiments, the reflective glass 2 and the color display screen 3 are both rotatably connected to the housing 1 via a rotating shaft. The housing 1 is provided with a shaft hole that mates with the rotating shaft, and a damping layer is provided between the rotating shaft and the shaft hole.

[0063] Reference Figures 1 to 6 As shown, in practice, when the box 1 is in the folded state, the color display screen 3 is located in the groove 121 of the bottom plate 12, and the reflective glass 2 is located in the receiving groove 132 of the top plate 13. The first side plate 15 covers the bottom plate 12, the second side plate 16 covers the first side plate 15, the rear plate 14 covers the second side plate 16, and the top plate 13 covers the rear plate 14. After the box 1 is folded, its area is relative to the area of ​​the bottom plate 12 or the top plate 13, making the box 1 easy to carry after folding. Typically, the bottom plate 12, the top plate 13, the first side plate 15, the second side plate 16, and the rear plate 14 are relatively thin, and the flexible connecting piece can have a certain degree of extensibility so that the top plate 13, the rear plate 14, the first side plate 15, and the second side plate 16 can be folded to a state parallel to the bottom plate 12.

[0064] During use, first, the top plate 13, the rear plate 14, and the second side plate 16 are offset. Then, the second side plate 16 and the first side plate 15 are flipped so that the second side plate 16, the first side plate 15, and the bottom plate 12 are kept in a roughly perpendicular state. Then, the top plate 13 and the rear plate 14 are offset, and the rear plate 14 is flipped so that the rear plate 14 and the bottom plate 12 are kept in a roughly perpendicular state. Finally, the top plate 13 is flipped so that the top plate 13 is supported by the first side plate 15, the second side plate 16, and the rear plate 14 at the same time, and the top plate 13 and the bottom plate 12 are in a parallel state.

[0065] After the box 1 is unfolded, the color display screen 3 and the reflective glass 2 are rotated to position them at a suitable angle. This, combined with the projector, creates a three-dimensional floating visual effect.

[0066] Holographic projection devices can be used in the following scenarios:

[0067] Foldable portable holographic projection devices not only offer high flexibility in use but also demonstrate strong adaptability in educational equity, aesthetic education, cultural dissemination, and public services. They serve as both a low-barrier-to-entry display tool and a bridge to bring cultural technology to grassroots communities and daily life, and will continue to expand their application breadth and depth across multiple industry scenarios in the future. With their portability, deployability, and strong interactivity, foldable portable holographic projection devices are widely applicable to diverse scenarios such as education, public cultural services, cultural tourism displays, and public welfare dissemination, and are particularly suitable for grassroots or mobile environments with limited space, weak network infrastructure, and insufficient equipment expertise. The following is an analysis of key application scenarios:

[0068] 1. Aesthetic education classes in rural primary and secondary schools:

[0069] Against the backdrop of long-standing problems in rural primary and secondary schools, such as a lack of art education resources, unprofessional teachers, and limited presentation methods, foldable portable holographic projection devices provide rural teachers with a teaching solution that is easy to set up and use, rich in content, and immersive and interactive, thereby realizing the application value of "helping art education enter the classroom, stimulating students' sensory experience, and enhancing the diversity of teaching content".

[0070] 2. Exhibition terminals in cultural centers / intangible cultural heritage museums:

[0071] In grassroots cultural centers or mobile intangible cultural heritage exhibitions, traditional display methods are often limited by high costs of transporting physical objects, monotonous display formats, and weak interactivity. Foldable portable holographic projection devices can be used to reconstruct a digital intangible cultural heritage expression model of "light display + strong visual impact," ultimately realizing the application value of "promoting the digital expression of intangible cultural heritage, expanding the boundaries of cultural dissemination, and stimulating community cultural identity."

[0072] 3. Cultural and tourism attractions and mobile performance spaces: In rural cultural and tourism markets, folk festivals, cultural and creative spaces, tourist reception points and other scenarios, foldable portable holographic projection devices can play a role as "digital check-in devices + interactive guide terminals + brand communication media", ultimately realizing the application value of "enhancing tourists' interactive experience, enriching the forms of tourism content dissemination, and shaping local digital cultural labels".

[0073] 4. Public Welfare Teaching and Mobile Science Popularization Exhibition: In rural teaching points with weak educational resources and remote geographical locations, foldable portable holographic projection devices, combined with their lightweight characteristics and content platform capabilities, can serve as mobile digital classrooms and science popularization tools. They are widely used in teaching teams, public welfare organizations, and mobile classroom scenarios; ultimately, they can achieve the application value of "empowering 'educational equity' and enhancing rural students' perception of knowledge and the world".

[0074] As an innovative immersive display terminal designed for educational and cultural scenarios, the foldable portable holographic projection device has achieved optimization and breakthroughs over traditional projection equipment, display tools, and educational interactive products in terms of hardware structure design, ease of use, content system integration, and service delivery mechanisms, forming a clear product differentiation positioning. The system combines a foldable holographic device with a mobile terminal, enabling rapid deployment within 30 seconds, supporting offline operation, and adapting to non-standard teaching environments such as rural classrooms and mobile classrooms. Integrating AI voice interaction and knowledge graphs, Teacher HOHO possesses multiple functions such as exhibit explanation, interactive Q&A, and creative guidance, significantly enhancing student participation and aesthetic education. It supports teachers' independent content editing, is compatible with mainstream terminal platforms, and can connect with digital museums and AI communities in the future to build an open digital aesthetic education ecosystem. "HOHO," as the platform's embedded virtual AI teacher avatar and voice interaction engine, runs on mobile devices using lightweight algorithms and offline recognition, featuring voice interaction, teaching script interpretation, digital teacher personality construction, and support for localized customization.

[0075] The above describes the subject matter technical solution of this utility model and its corresponding details. It is understood that the above description is only some implementation schemes of the subject matter technical solution of this utility model, and some details may be omitted in the specific implementation.

[0076] Furthermore, in some embodiments of the above utility model, multiple embodiments may be combined; however, due to space limitations, all such combinations will not be listed here. Those skilled in the art can freely combine the above embodiments according to their needs to achieve a better application experience.

[0077] When implementing the subject matter technical solution of this utility model, those skilled in the art can obtain other detailed configurations or drawings based on the subject matter technical solution and the accompanying drawings. Obviously, these details are still within the scope of the subject matter technical solution of this utility model without departing from it.

Claims

1. A foldable portable holographic projection device, characterized in that: Includes the box body (1); Reflective glass (2), which is rotatably disposed inside the housing (1); The color display screen (3) is rotatably disposed inside the housing (1), and the color display screen (3) is disposed opposite to the reflective glass (2); The box body (1) is a folding box body, and a light-shielding cavity (11) is formed inside the box body (1). The reflective glass (2) and the color display screen (3) are both located inside the light-shielding cavity (11).

2. The foldable portable holographic projection device according to claim 1, characterized in that: The box body (1) includes a bottom plate (12), a top plate (13), a rear plate (14), a first side plate (15), and a second side plate (16). The top plate (13) is disposed on the bottom plate (12) through the rear plate (14). The top plate (13) is rotatably connected to the rear plate (14), and the rear plate (14) is rotatably connected to the bottom plate (12). The first side plate (15) is rotatably connected to the bottom plate (12), the second side plate (16) is rotatably connected to the bottom plate (12), the reflective glass (2) is rotatably connected to the top plate (13), and the color display screen (3) is rotatably connected to the bottom plate (12). The bottom plate (12), the top plate (13), the rear plate (14), the first side plate (15), and the second side plate (16) form the light-shielding cavity (11).

3. The foldable portable holographic projection device according to claim 2, characterized in that: The lower ends of the first side plate (15) and the second side plate (16) are rotatably connected to the bottom plate (12) through flexible connecting pieces, and the upper ends of the first side plate (15) and the second side plate (16) are adsorbed to the top plate (13) through adsorption components.

4. The foldable portable holographic projection device according to claim 3, characterized in that: The adsorption assembly includes a first magnet (131) disposed on the top plate (13), and the first side plate (15) and the second side plate (16) are each provided with a second magnet (17) that is adsorbed to the first magnet (131).

5. The foldable portable holographic projection device according to any one of claims 2 to 4, characterized in that: Both the first side plate (15) and the second side plate (16) are folding plates. Both the first side plate (15) and the second side plate (16) include a first part (18) and a second part (19). The second part (19) is connected to the bottom plate (12) and contacts the top plate (13). The first part (18) and the second part (19) are rotatably connected.

6. The foldable portable holographic projection device according to claim 5, characterized in that: The first part (18) and the second part (19) are connected by flexible connecting pieces.

7. The foldable portable holographic projection device according to claim 1, characterized in that: The box body (1) is provided with a handle (101).

8. The foldable portable holographic projection device according to claim 2, characterized in that: The top plate (13) is provided with a receiving groove (132) for accommodating the reflective glass (2), and the thickness of the reflective glass (2) is not greater than the depth of the receiving groove (132).

9. The foldable portable holographic projection device according to claim 2, characterized in that: The base plate (12) is provided with a groove (121) for accommodating the color display screen (3), and the thickness of the color display screen (3) is not greater than the depth of the groove (121).

10. The foldable portable holographic projection device according to claim 1, characterized in that: The reflective glass (2) and the color display screen (3) are both rotatably connected to the housing (1) via a rotating shaft. The housing (1) is provided with a shaft hole that cooperates with the rotating shaft, and a damping layer is provided between the rotating shaft and the shaft hole.

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