A holographic three-dimensional projection screen and installation method

Abstract

The present invention relates to a holographic three-dimensional projection screen and an installation method, belonging to the field of stereoscopic projection technology, comprising a fixed base frame and a three-dimensional projection screen body, wherein a height adjustment mechanism and a horizontal distance adjustment mechanism installed on the height adjustment mechanism are installed on the side of the fixed base frame away from the ground, and the three-dimensional projection screen body is installed on the horizontal distance adjustment mechanism. The holographic three-dimensional projection screen and the installation method can freely adjust the height according to the actual situation of the exhibition site, can adapt to ceilings of different heights in different exhibition sites, avoid picture distortion and compression, and can also make the holographic three-dimensional projection screen adapt to various occasions such as mobile exhibitions and temporary exhibitions. The holographic three-dimensional projection screen can adjust the horizontal direction and distance according to the actual situation, thereby effectively improving the use effect of the existing three-dimensional projection screen.

Description

Technical Field

[0001] The invention relates to the technical field of stereoscopic projection, and in particular to a holographic three-dimensional projection screen and an installation method thereof. Background Art

[0002] Holographic 3D projection screen is a display technology that uses optical holography and 3D projection technology to create a three-dimensional image that looks very realistic, allowing viewers to observe objects from multiple angles without the need for any special glasses or equipment.

[0003] The principle of the holographic three-dimensional projection screen is to divide the laser beam into two parts, one is called the reference wave, and the other is called the object wave. The object wave shines on the object, then reflects back and meets the reference wave to form a holographic image. This image can be recorded and then illuminated again using a laser beam to present a very realistic three-dimensional image on the screen.

[0004] Holographic 3D projection screens can be used in various applications, such as education, medical care, entertainment, and industrial design. It can bring a more vivid, realistic, and interactive experience to various fields.

[0005] However, traditional three-dimensional projection screens have some disadvantages. First, due to their large size, traditional three-dimensional projection screens are not convenient to move and adjust their height angles, which means that they can usually only be used at fixed positions and heights and require a lot of space and supporting structures, which makes them difficult to use in some occasions, such as mobile exhibitions or temporary displays. Therefore, a holographic three-dimensional projection screen that can be adjusted in all directions is needed to solve the above problems. Summary of the invention

[0006] 1. Technical issues to be resolved

[0007] In view of the deficiencies in the prior art, the present invention provides a holographic three-dimensional projection screen and an installation method, which have the advantages of being able to perform all-round adjustment of the three-dimensional projection screen, and solve the problem that the existing three-dimensional projection screen is large in size and inconvenient to move and adjust its height angle.

[0008] (II) Technical solution

[0009] In order to achieve the above-mentioned purpose of being able to adjust the three-dimensional projection screen in all directions, the present invention provides the following technical solutions: a holographic three-dimensional projection screen and an installation method, comprising a fixed base frame and a three-dimensional projection screen body, a height adjustment mechanism and a horizontal distance adjustment mechanism installed on the height adjustment mechanism are installed on the side of the fixed base frame away from the ground, and the three-dimensional projection screen body is installed on the horizontal distance adjustment mechanism;

[0010] The height adjustment mechanism comprises a support fixing assembly mounted on the side of the fixed base frame away from the ground and two sets of height lifting drive assemblies respectively mounted on the support fixing assembly, and the outer side of the height lifting drive assembly is connected to a lifting auxiliary assembly connected to the support fixing assembly;

[0011] The horizontal distance adjustment mechanism comprises a distance driving assembly and a sliding assembly respectively mounted on the same side of the fixed chassis, a distance adjustment moving assembly is connected between the outer sides of the distance driving assembly and the sliding assembly, a horizontal slide rail is mounted on the outer side of the height adjustment mechanism, a horizontal driving assembly and a transmission assembly connected to the horizontal driving assembly are mounted on one side of the height adjustment mechanism, a threaded rotation assembly and a threaded adjustment block connected to the outer side of the threaded rotation assembly are connected on one side of the transmission assembly, and a horizontal auxiliary assembly slidably connected to the horizontal slide rail is mounted on one side of the threaded adjustment block;

[0012] The supporting and fixing assembly includes a vertical slide rail and a fixed connecting frame; one side of the vertical slide rail is slidably connected to the side of the fixed base frame away from the ground, the number of the vertical slide rails is two and they are distributed in a mirror-symmetrical manner, and the two ends of the fixed connecting frame are respectively fixedly mounted on the opposite sides of the two vertical slide rails;

[0013] The height lifting drive assembly includes a synchronous motor, a No. 1 threaded rod and a No. 1 bearing support; one side of the synchronous motor is fixedly mounted on one side of one of the vertical slide rails by bolts, one end of the No. 1 threaded rod is fixedly connected to the output shaft of the synchronous motor, and the other end passes through the lifting auxiliary assembly and extends to one side of the No. 1 bearing support and is rotatably connected to the No. 1 bearing support through a bearing;

[0014] The lifting auxiliary assembly includes a No. 1 wheel frame, a No. 1 rotating rod, a No. 1 pulley and a support frame; the No. 1 rotating rod is located between the No. 1 wheel frame and the opposite side of the support frame, and the two ends of the No. 1 rotating rod are rotatably connected to the No. 1 wheel frame and the support frame through bearings, and the number of the No. 1 rotating rods is two and they are distributed in a mirror-symmetrical manner, the inner side of the No. 1 pulley is fixedly connected to the outer side of the No. 1 rotating rod, and the outer side of the No. 1 pulley is fitted and slid with the inner side of the vertical slide rail;

[0015] The synchronous motor drives the first threaded rod to rotate, so as to drive the first wheel frame to move, and the first pulley moves accordingly;

[0016] The distance driving assembly includes a No. 2 bearing support, a No. 1 servo motor and a No. 2 threaded rod; one side of the No. 2 bearing support is fixedly mounted on one side of the fixed base frame by bolts, the number of the No. 2 bearing supports is two and they are distributed in a mirror-symmetrical manner, one side of one of the No. 2 bearing supports is fixedly mounted on one side of the No. 1 servo motor, one end of the No. 2 threaded rod passes through one of the No. 2 bearing supports and is fixedly connected to the output shaft of the No. 1 servo motor, and the other end passes through the distance adjustment moving assembly and extends to one side of another No. 2 bearing support and is rotatably connected to the other No. 2 bearing support through a bearing;

[0017] The sliding assembly includes a No. 3 bearing support and a sliding rod; one side of the No. 3 bearing support is fixedly mounted on one side of the fixed base frame by bolts, the number of the No. 3 bearing supports is two and they are distributed in a mirror-symmetrical manner, and the two ends of the sliding rod are respectively fixedly connected to the opposite sides of the two No. 3 bearing supports;

[0018] The distance adjustment moving assembly comprises a moving block, a connecting plate and a fixed block; the two moving blocks are respectively a sliding adjustment block and a threaded moving block, the inner side of the sliding adjustment block is slidably connected with the outer side of the sliding rod and slides in close contact, and the inner side of the threaded moving block is threadedly connected with the outer side of the second threaded rod;

[0019] The sliding adjustment block and the threaded moving block are fixedly connected to the connecting plate at one side away from the ground, one side of the two fixed blocks is fixedly connected to one side of the sliding adjustment block and the threaded moving block respectively, and the side of the fixed block away from the connecting plate is fixedly connected to one side of the vertical slide rail;

[0020] The horizontal drive assembly includes a No. 2 servo motor, a No. 2 rotating rod and a rotating bracket; one side of the No. 2 servo motor is fixedly mounted on one side of the supporting frame, one end of the No. 2 rotating rod is fixedly connected to the output shaft of the No. 2 servo motor, and the other end passes through the rotating bracket and is connected to the transmission assembly, one side of the rotating bracket is fixedly mounted on one side of the horizontal slide rail, and the outer side of the No. 2 rotating rod is rotatably connected to the inner side of the rotating bracket through a bearing;

[0021] The transmission assembly includes a driving bevel gear and a driven bevel gear; the inner side of the driving bevel gear is fixedly connected to the outer side of the second rotating rod;

[0022] The second servo motor drives the second rotating rod to rotate, so as to drive the driven bevel gear meshed with the driving bevel gear to rotate, and the threaded rotating assembly rotates accordingly;

[0023] The thread rotation assembly includes a No. 3 thread rod and an L-shaped fixing plate; one end of the No. 3 thread rod passes through the thread adjustment block and is fixedly connected to one side of the driven bevel gear, and the other end is rotatably connected to one side of the L-shaped fixing plate through a bearing, one side of the L-shaped fixing plate is fixedly installed on one side of the horizontal slide rail, and the thread adjustment block moves on the outside of the No. 3 thread rod under the rotation thrust of the inner thread;

[0024] The horizontal auxiliary component includes a No. 2 wheel frame, a No. 3 rotating rod and a No. 2 pulley; the number of the No. 2 wheel frames is two and they are distributed in a mirror-symmetrical manner, the horizontal slide rail is located between the two opposite sides of the No. 2 wheel frames, the two ends of the No. 3 rotating rod are rotatably connected to the two opposite sides of the No. 2 wheel frames through bearings, the inner side of the No. 2 pulley is fixedly connected to the outer side of the No. 3 rotating rod, and the outer side of the No. 2 pulley is slidably connected to the inner side of the horizontal slide rail, one side of the threaded adjustment block is fixedly installed on one side of one of the No. 2 wheel frames, and one side of the three-dimensional projection screen body is fixedly installed on one side of the threaded adjustment block.

[0025] A method for installing a holographic three-dimensional projection screen based on the above-mentioned method includes the following steps:

[0026] Step 1) Determine the projection area. According to the size of the three-dimensional projection screen and the requirements of the projection effect, determine the size and position of the projection area;

[0027] Before determining the projection area, the size and shape of the projection screen need to be considered. The size and position of the projection area need to match the size and shape of the three-dimensional projection screen body to ensure the best projection effect. The brightness and color of the projection environment also need to be considered to ensure the best projection effect.

[0028] Step 2) Install the projection equipment. Select the appropriate projection equipment and install it according to the size of the projection area and the requirements of the projection effect.

[0029] Step 3) The projection equipment needs to be connected to the power supply and signal cables to ensure the best projection effect. Before installing the laser equipment, the type and specifications of the laser equipment need to be considered. Different types and specifications of laser equipment require different installation methods and steps. The installation location of the laser equipment needs to match the size and location of the projection area. After installation, the laser equipment needs to be debugged to ensure the best projection effect.

[0030] Step 4) Install the 3D projection screen body. Install the 3D projection screen body according to the requirements of the projection equipment and debug it. Before installing the holographic imaging equipment, it is necessary to consider the type and specifications of the 3D projection screen body. Different types and specifications of 3D projection screen bodies require different installation methods and steps to ensure the best projection effect. During installation, first move the fixed base frame to the designated projection area through the mobile device, then fix the fixed base frame with a fixing tool to ensure stability during adjustment, and then fix the 3D projection screen body to the threaded adjustment block.

[0031] Step 5) The 3D projection screen body needs to be debugged. By debugging and testing the projection equipment, laser equipment and 3D projection screen body, ensure that the projection effect meets the requirements; before debugging and testing, the following factors need to be considered:

[0032] a. Steps and methods for debugging and testing. Debugging and testing need to be carried out according to certain steps and methods;

[0033] b. Tools and equipment for debugging and testing. Debugging and testing require the use of certain tools and equipment;

[0034] c. The environment and conditions for debugging and testing. Debugging and testing need to be carried out in a certain environment and under certain conditions;

[0035] Step 6) Installing the height adjustment mechanism and the horizontal distance adjustment mechanism, according to the requirements of the projection device, installing the height adjustment mechanism and the horizontal distance adjustment mechanism, and debugging them;

[0036] Before installing a control system, there are several factors to consider:

[0037] 1. The type and specification of the control system. Different types and specifications of control systems require different installation methods and steps;

[0038] 2. Size and location of the projection area: The installation location of the control system needs to match the size and location of the projection area;

[0039] Step 7) After all installations are completed, the height adjustment mechanism and the horizontal distance adjustment mechanism are debugged to ensure the best projection effect.

[0040] (III) Beneficial effects

[0041] Compared with the prior art, the present invention provides a holographic three-dimensional projection screen and an installation method, which have the following beneficial effects:

[0042] 1. The holographic three-dimensional projection screen and the installation method can freely adjust the height according to the actual situation of the exhibition site through the cooperation between the height adjustment mechanism on the fixed base frame and the three-dimensional projection screen body. In different exhibition sites, it can adapt to ceilings of different heights without complicated adjustments, and keep a certain distance between the projection picture and the ceiling, avoiding picture distortion and compression, thereby effectively improving the use effect of the existing three-dimensional projection screen.

[0043] 2. The holographic three-dimensional projection screen and the installation method can make the holographic three-dimensional projection screen adapt to various mobile exhibitions and temporary displays through the cooperation between the horizontal distance adjustment mechanism on the fixed base frame and the three-dimensional projection screen body. In these occasions, the holographic three-dimensional projection screen can be adjusted in the horizontal direction and distance according to the actual situation, thereby effectively improving the use effect of the existing three-dimensional projection screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 It is a schematic diagram of the structure of the present invention;

[0045] Figure 2 for Figure 1 A partial enlarged schematic diagram of the middle A part;

[0046] Figure 3 for Figure 1 Rear cross-sectional view of the neutral slide rail connection structure;

[0047] Figure 4 for Figure 3 A partial enlarged schematic diagram of part B in the middle.

[0048] In the figure: 1 fixed base frame, 200 height adjustment mechanism, 2011 vertical slide rail, 2012 fixed connecting frame, 2021 synchronous motor, 2022 No. 1 threaded rod, 2023 No. 1 bearing support, 2041 No. 1 wheel frame, 2042 No. 1 rotating rod, 2043 No. 1 pulley, 2044 support frame, 300 horizontal distance adjustment mechanism, 3011 No. 2 bearing support, 3012 No. 1 servo motor, 3013 No. 2 threaded rod, 3021 No. 3 bearing support, 3 022 sliding rod, 3031 moving block assembly, 3032 connecting plate, 3033 fixed block, 304 horizontal slide rail, 3051 No. 2 servo motor, 3052 No. 2 rotating rod, 3053 rotating bracket, 3061 driving bevel gear, 3062 driven bevel gear, 3071 No. 3 threaded rod, 3072 L-shaped fixing plate, 308 threaded adjustment block, 3091 No. 2 wheel frame, 3092 No. 3 rotating rod, 3093 No. 2 pulley, 4 three-dimensional projection screen body. DETAILED DESCRIPTION

[0049] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0050] See also Figure 1-4 The present invention provides a technical solution: a holographic three-dimensional projection screen and an installation method, comprising a fixed base frame 1 and a three-dimensional projection screen body 4, a height adjustment mechanism 200 and a horizontal distance adjustment mechanism 300 installed on the height adjustment mechanism 200 are installed on the side of the fixed base frame 1 away from the ground, and the three-dimensional projection screen body 4 is installed on the horizontal distance adjustment mechanism 300;

[0051] By fixing the height adjustment mechanism 200 on the base frame 1, the horizontal distance adjustment mechanism 300 and the three-dimensional projection screen body 4, the height can be freely adjusted according to the actual situation of the exhibition venue. In different exhibition venues, it can adapt to ceilings of different heights without complicated adjustments, and the projection image can maintain a certain distance from the ceiling, avoiding image distortion and compression. At the same time, the holographic three-dimensional projection screen can also be adapted to various mobile exhibitions and temporary exhibitions. In these occasions, the holographic three-dimensional projection screen can be adjusted in horizontal direction and distance according to actual conditions, thereby effectively improving the use effect of the existing three-dimensional projection screen.

[0052] In the first embodiment, the height adjustment mechanism 200 is a structure for freely adjusting the height according to the actual situation of the exhibition site.

[0053] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the height adjustment mechanism 200 includes a supporting and fixing component installed on the side of the fixed base frame 1 away from the ground and two groups of height lifting and lowering drive components respectively installed on the supporting and fixing components, and the outer side of the height lifting and lowering drive component is connected to a lifting auxiliary component connected to the supporting and fixing component.

[0054] It should be noted that the supporting and fixing components include a vertical slide rail 2011 and a fixed connecting frame 2012; one side of the vertical slide rail 2011 is slidably connected to the side of the fixed base frame 1 away from the ground, the number of vertical slide rails 2011 is two and they are distributed in a mirror-symmetrical manner, and the two ends of the fixed connecting frame 2012 are respectively fixedly installed on the opposite sides of the two vertical slide rails 2011, in order to facilitate the three-dimensional projection screen body 4 to perform stable lifting and lowering movements.

[0055] It can be understood that the height lifting drive assembly includes a synchronous motor 2021, a No. 1 threaded rod 2022 and a No. 1 bearing support 2023; one side of the synchronous motor 2021 is fixedly installed on one side of one of the vertical slide rails 2011 by bolts, one end of the No. 1 threaded rod 2022 is fixedly connected to the output shaft of the synchronous motor 2021, and the other end passes through the lifting auxiliary assembly and extends to one side of the No. 1 bearing support 2023 and is rotatably connected to the No. 1 bearing support 2023 through a bearing, so as to be able to drive the lifting auxiliary assembly to move more stably.

[0056] In addition, the lifting auxiliary component includes a No. 1 wheel frame 2041, a No. 1 rotating rod 2042, a No. 1 pulley 2043 and a support frame 2044; the No. 1 rotating rod 2042 is located between the No. 1 wheel frame 2041 and the support frame 2044 on opposite sides, and the two ends of the No. 1 rotating rod 2042 are rotatably connected to the No. 1 wheel frame 2041 and the support frame 2044 through bearings, and the number of the No. 1 rotating rods 2042 is two and they are distributed in a mirror-symmetrical manner, the inner side of the No. 1 pulley 2043 is fixedly connected to the outer side of the No. 1 rotating rod 2042, and the outer side of the No. 1 pulley 2043 slides in contact with the inner side of the vertical slide rail 2011;

[0057] The synchronous motor 2021 drives the No. 1 threaded rod 2022 to rotate, thereby driving the No. 1 wheel frame 2041 to move, and the No. 1 pulley 2043 moves accordingly, so as to make the three-dimensional projection screen body 4 more stably lift and lower under the drive of the synchronous motor 2021.

[0058] In the second embodiment, the horizontal perspective adjustment mechanism 300 is a structure for adjusting the horizontal direction and the perspective distance according to actual conditions.

[0059] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the horizontal distance adjustment mechanism 300 includes a distance driving assembly and a sliding assembly respectively installed on the same side of the fixed base frame 1, a distance adjustment moving assembly is connected between the outer sides of the distance driving assembly and the sliding assembly, a horizontal slide rail 304 is installed on the outer side of the height adjustment mechanism 200, a horizontal driving assembly and a transmission assembly connected to the horizontal driving assembly are installed on one side of the height adjustment mechanism 200, a threaded rotation assembly and a threaded adjustment block 308 connected to the outer side of the threaded rotation assembly are connected on one side of the transmission assembly, and a horizontal auxiliary assembly slidably connected to the horizontal slide rail 304 is installed on one side of the threaded adjustment block 308.

[0060] It should be noted that the distance driving assembly includes a No. 2 bearing support 3011, a No. 1 servo motor 3012 and a No. 2 threaded rod 3013; one side of the No. 2 bearing support 3011 is fixedly installed on one side of the fixed base frame 1 by bolts, and the number of No. 2 bearing supports 3011 is two and they are distributed in a mirror-symmetrical manner, one side of one of the No. 2 bearing supports 3011 is fixedly installed on one side of the No. 1 servo motor 3012, one end of the No. 2 threaded rod 3013 passes through one of the No. 2 bearing supports 3011 and is fixedly connected to the output shaft of the No. 1 servo motor 3012, and the other end passes through the distance adjustment moving assembly and extends to one side of another No. 2 bearing support 3011 and is rotatably connected to the other No. 2 bearing support 3011 through a bearing, so as to be able to stably drive the No. 2 threaded rod 3013 to rotate, so as to drive the distance adjustment moving assembly to move.

[0061] It can be understood that the sliding assembly includes a No. 3 bearing support 3021 and a sliding rod 3022; one side of the No. 3 bearing support 3021 is fixedly installed on one side of the fixed base frame 1 by bolts, the number of No. 3 bearing supports 3021 is two and they are distributed in a mirror-symmetrical manner, and the two ends of the sliding rod 3022 are respectively fixedly connected to the opposite sides of the two No. 3 bearing supports 3021, in order to improve the stability of the movement of the distance adjustment moving assembly.

[0062] In addition, the far and near adjustment moving assembly includes a moving block 3031, a connecting plate 3032 and a fixed block 3033; the two moving blocks 3031 are respectively a sliding adjustment block and a threaded moving block, the inner side of the sliding adjustment block is slidably connected with the outer side of the sliding rod 3022 and slides in close contact, and the inner side of the threaded moving block is threadedly connected with the outer side of the second threaded rod 3013;

[0063] The side of the sliding adjustment block and the threaded moving block away from the ground is fixedly connected to the connecting plate 3032, one side of the two fixed blocks 3033 is fixedly connected to one side of the sliding adjustment block and the threaded moving block respectively, and the side of the fixed block 3033 away from the connecting plate 3032 is fixedly connected to one side of the vertical slide rail 2011, so as to be able to adjust the distance of the three-dimensional projection screen body 4.

[0064] In this embodiment, the horizontal drive assembly includes a No. 2 servo motor 3051, a No. 2 rotating rod 3052 and a rotating bracket 3053; one side of the No. 2 servo motor 3051 is fixedly mounted on one side of the support frame 2044, one end of the No. 2 rotating rod 3052 is fixedly connected to the output shaft of the No. 2 servo motor 3051, and the other end passes through the rotating bracket 3053 and is connected to the transmission assembly, one side of the rotating bracket 3053 is fixedly mounted on one side of the horizontal slide rail 304, and the outer side of the No. 2 rotating rod 3052 is rotatably connected to the inner side of the rotating bracket 3053 through a bearing, so as to stably drive the transmission assembly to rotate.

[0065] It should also be noted that the transmission assembly includes a driving bevel gear 3061 and a driven bevel gear 3062; the inner side of the driving bevel gear 3061 is fixedly connected to the outer side of the second rotating rod 3052;

[0066] The second servo motor 3051 drives the second rotating rod 3052 to rotate, so as to drive the driven bevel gear 3062 meshed with the driving bevel gear 3061 to rotate, and the threaded rotating assembly rotates accordingly;

[0067] The thread rotation assembly includes a No. 3 threaded rod 3071 and an L-shaped fixing plate 3072; one end of the No. 3 threaded rod 3071 passes through the thread adjustment block 308 and is fixedly connected to one side of the driven bevel gear 3062, and the other end is rotatably connected to one side of the L-shaped fixing plate 3072 through a bearing, and one side of the L-shaped fixing plate 3072 is fixedly installed on one side of the horizontal slide rail 304. The thread adjustment block 308 moves on the outer side of the No. 3 threaded rod 3071 under the rotation thrust of the inner thread;

[0068] The horizontal auxiliary component includes a No. 2 wheel frame 3091, a No. 3 rotating rod 3092 and a No. 2 pulley 3093; there are two No. 2 wheel frames 3091 and they are distributed in a mirror-symmetrical manner, the horizontal slide rail 304 is located between the opposite sides of the two No. 2 wheel frames 3091, and the two ends of the No. 3 rotating rod 3092 are rotatably connected to the opposite sides of the two No. 2 wheel frames 3091 through bearings, the inner side of the No. 2 pulley 3093 is fixedly connected to the outer side of the No. 3 rotating rod 3092, and the outer side of the No. 2 pulley 3093 is slidably connected to the inner side of the horizontal slide rail 304, one side of the threaded adjustment block 308 is fixedly installed on one side of one of the No. 2 wheel frames 3091, and one side of the three-dimensional projection screen body 4 is fixedly installed on one side of the threaded adjustment block 308, so as to be able to stably drive the three-dimensional projection screen body 4 to move and adjust in the horizontal direction.

[0069] A method for installing a holographic three-dimensional projection screen based on the above includes the following steps:

[0070] Step 1 determines the projection area, and determines the size and position of the projection area according to the size of the three-dimensional projection screen body 4 and the requirements of the projection effect;

[0071] Before determining the projection area, the size and shape of the projection screen need to be considered. The size and position of the projection area need to match the size and shape of the three-dimensional projection screen body 4 to ensure the best projection effect. The brightness and color of the projection environment also need to be considered to ensure the best projection effect.

[0072] Step 2: Install the projection equipment. Select the appropriate projection equipment and install it according to the size of the projection area and the requirements of the projection effect.

[0073] Step 3: The projection device needs to be connected to the power supply and signal cables to ensure the best projection effect. Before installing the laser device, you need to consider the type and specifications of the laser device. Different types and specifications of laser devices require different installation methods and steps. The installation location of the laser device needs to match the size and location of the projection area. After installation, the laser device needs to be debugged to ensure the best projection effect.

[0074] Step 4: Install the 3D projection screen body 4. According to the requirements of the projection device, install the 3D projection screen body 4 and debug it. Before installing the holographic imaging device, the type and specification of the 3D projection screen body 4 need to be considered. Different types and specifications of 3D projection screen bodies 4 require different installation methods and steps to ensure the best projection effect. During installation, first move the fixed base frame 1 to the designated projection area through a mobile device, then fix the fixed base frame 1 through a fixing tool to ensure stability during adjustment, and then fix the 3D projection screen body 4 to the threaded adjustment block 308.

[0075] Step 5 The three-dimensional projection screen body 4 needs to be debugged. By debugging and testing the projection equipment, laser equipment and the three-dimensional projection screen body 4, it is ensured that the projection effect meets the requirements; before debugging and testing, the following factors need to be considered:

[0076] a. Steps and methods for debugging and testing. Debugging and testing need to be carried out according to certain steps and methods;

[0077] b. Tools and equipment for debugging and testing. Debugging and testing require the use of certain tools and equipment;

[0078] c. The environment and conditions for debugging and testing. Debugging and testing need to be carried out in a certain environment and under certain conditions;

[0079] Step 6: Install the height adjustment mechanism 200 and the horizontal distance adjustment mechanism 300. According to the requirements of the projection device, install the height adjustment mechanism 200 and the horizontal distance adjustment mechanism 300 and debug them;

[0080] Before installing a control system, there are several factors to consider:

[0081] 1. The type and specification of the control system. Different types and specifications of control systems require different installation methods and steps;

[0082] 2. Size and location of the projection area: The installation location of the control system needs to match the size and location of the projection area;

[0083] Step 7 After all installations are completed, the height adjustment mechanism 200 and the horizontal distance adjustment mechanism 300 are debugged to ensure the best projection effect.

[0084] The working principle of the above embodiment is:

[0085] (1) When the height of the three-dimensional projection screen body 4 needs to be adjusted, the synchronous motor 2021 is first started to drive the No. 1 threaded rod 2022 to rotate under the rotation support of the bearing, so as to drive the No. 1 wheel frame 2041 to move up and down on the outer side of the No. 1 threaded rod 2022 under the rotation thrust of the inner thread and the sliding connection between the No. 1 pulley 2043 and the vertical slide rail 211, and drive the horizontal slide rail 304 to move, and the threaded adjustment block 308 moves accordingly, and drives the three-dimensional projection screen body 4 to move, so that the height of the three-dimensional projection screen body 4 can be adjusted;

[0086] (2) When the distance of the three-dimensional projection screen body 4 needs to be adjusted, the first servo motor 3012 is first started to drive the second threaded rod 3013 to rotate under the rotation support of the bearing. Since the threaded moving block is connected to the sliding adjustment block through the connecting plate 3032, and the sliding connection block and the sliding rod 3022 are slidingly connected, the threaded moving block moves on the outside of the second threaded rod 3013 under the thrust of the inner thread rotation, and drives the moving block 3031 to move on the outside of the sliding rod 3022 through the connecting plate 3032, and the fixed block 3033 moves accordingly, and drives the vertical slide rail 2011 to move, so that the distance of the three-dimensional projection screen body 4 can be adjusted;

[0087] (3) When the horizontal direction of the three-dimensional projection screen body 4 needs to be adjusted, the No. 2 servo motor 3051 is started to drive the No. 2 rotating rod 3052 to rotate under the rotation support of the bearing, so as to drive the driven bevel gear 3062 meshed on the active bevel gear 3061 to rotate, and then the No. 3 threaded rod 3071 is driven to rotate under the rotation support of the bearing, so as to push the threaded adjustment block 308 to move outside the No. 3 threaded rod 3071 under the thrust of the outer thread rotation and the sliding connection between the No. 2 pulley 3093 and the horizontal slide rail 304, so as to achieve the horizontal direction adjustment of the three-dimensional projection screen body 4.

[0088] Compared with the prior art: the holographic three-dimensional projection screen and the installation method can freely adjust the height according to the actual situation of the exhibition venue through the cooperation between the height adjustment mechanism 200, the horizontal distance adjustment mechanism 300 and the three-dimensional projection screen body 4 on the fixed base frame 1. In different exhibition venues, it can adapt to ceilings of different heights without the need for cumbersome adjustments, and keep a certain distance between the projection picture and the ceiling, avoiding picture distortion and compression. At the same time, the holographic three-dimensional projection screen can also be adapted to various mobile exhibitions and temporary exhibitions. In these occasions, the holographic three-dimensional projection screen can be adjusted in the horizontal direction and distance according to the actual situation, thereby effectively improving the use effect of the existing three-dimensional projection screen and solving the problem that the existing three-dimensional projection screen is large in size and inconvenient to move and adjust its height angle.

[0089] The electrical components appearing in the text are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device that controls a computer, etc., and the existing publicly available power connection technology and power supply are also common knowledge in the field, so this application will not go into details.

[0090] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0091] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A holographic three-dimensional projection screen, comprising a fixed base frame (1) and a three-dimensional projection screen body (4), characterized in that: A height adjustment mechanism (200) and a horizontal distance adjustment mechanism (300) installed on the height adjustment mechanism (200) are installed on the side of the fixed base frame (1) away from the ground, and the three-dimensional projection screen body (4) is installed on the horizontal distance adjustment mechanism (300); The height adjustment mechanism (200) comprises a support fixing component mounted on a side of the fixed base frame (1) away from the ground, and two groups of height lifting drive components respectively mounted on the support fixing components, wherein the outer side of the height lifting drive component is connected to a lifting auxiliary component connected to the support fixing component; The horizontal distance adjustment mechanism (300) comprises a distance drive assembly and a sliding assembly respectively mounted on the same side of the fixed base frame (1); a distance adjustment moving assembly is connected between the outer sides of the distance drive assembly and the sliding assembly; a horizontal slide rail (304) is mounted on the outer side of the height adjustment mechanism (200); a horizontal drive assembly and a transmission assembly connected to the horizontal drive assembly are mounted on one side of the height adjustment mechanism (200); a threaded rotation assembly and a threaded adjustment block (308) connected to the outer side of the threaded rotation assembly are connected on one side of the transmission assembly; and a horizontal auxiliary assembly slidably connected to the horizontal slide rail (304) is mounted on one side of the threaded adjustment block (308); The supporting and fixing assembly comprises a vertical slide rail (2011) and a fixed connecting frame (2012); one side of the vertical slide rail (2011) is slidably connected to a side of the fixed base frame (1) away from the ground, the number of the vertical slide rails (2011) is two and they are distributed in a mirror-symmetrical manner, and the two ends of the fixed connecting frame (2012) are respectively fixedly mounted on opposite sides of the two vertical slide rails (2011); The height lifting drive assembly comprises a synchronous motor (2021), a No. 1 threaded rod (2022) and a No. 1 bearing support (2023); one side of the synchronous motor (2021) is fixedly mounted on one side of one of the vertical slide rails (211) by means of bolts, one end of the No. 1 threaded rod (2022) is fixedly connected to the output shaft of the synchronous motor (2021), and the other end passes through the lifting auxiliary assembly and extends to one side of the No. 1 bearing support (223) to be rotatably connected to the No. 1 bearing support (223) by means of a bearing; The lifting auxiliary component comprises a No. 1 wheel frame (2041), a No. 1 rotating rod (2042), a No. 1 pulley (2043) and a support frame (2044); the No. 1 rotating rod (2042) is located between the No. 1 wheel frame (2041) and the support frame (2044) on opposite sides, and the two ends of the No. 1 rotating rod (2042) are rotatably connected to the No. 1 wheel frame (2041) and the support frame (2044) respectively through bearings, and the number of the No. 1 rotating rods (2042) is two and they are distributed in a mirror-symmetrical manner, the inner side of the No. 1 pulley (2043) is fixedly connected to the outer side of the No. 1 rotating rod (2042), and the outer side of the No. 1 pulley (2043) is slidably fitted with the inner side of the vertical slide rail (2011); The synchronous motor (221) drives the first threaded rod (2022) to rotate, thereby driving the first wheel frame (2041) to move, and the first pulley (2043) moves accordingly; The distance driving assembly comprises a No. 2 bearing support (3011), a No. 1 servo motor (3012) and a No. 2 threaded rod (3013); one side of the No. 2 bearing support (3011) is fixedly mounted on one side of the fixed base frame (1) by means of bolts; the number of the No. 2 bearing supports (3011) is two and they are distributed in a mirror-symmetrical manner; one side of one of the No. 2 bearing supports (3011) is fixedly mounted on one side of the No. 1 servo motor (3012); one end of the No. 2 threaded rod (3013) passes through one of the No. 2 bearing supports (3011) and is fixedly connected to the output shaft of the No. 1 servo motor (3012); the other end of the No. 2 threaded rod (3013) passes through the distance adjustment moving assembly and extends to one side of another No. 2 bearing support (3011) and is rotatably connected to the other No. 2 bearing support (3011) through a bearing; The sliding assembly comprises a No. 3 bearing support (3021) and a sliding rod (3022); one side of the No. 3 bearing support (3021) is fixedly mounted on one side of the fixed base frame (1) by means of bolts, the number of the No. 3 bearing supports (3021) is two and they are distributed in a mirror-symmetrical manner, and the two ends of the sliding rod (3022) are respectively fixedly connected to opposite sides of the two No. 3 bearing supports (3021); The distance adjustment moving assembly comprises a moving block (3031), a connecting plate (3032) and a fixed block (3033); the two moving blocks (3031) are respectively a sliding adjustment block and a threaded moving block, the inner side of the sliding adjustment block is slidably connected to the outer side of the sliding rod (3022) and slides in close contact, and the inner side of the threaded moving block is threadedly connected to the outer side of the second threaded rod (3013); The side of the sliding adjustment block and the threaded moving block away from the ground is fixedly connected to the connecting plate (3032), one side of the two fixed blocks (3033) is fixedly connected to one side of the sliding adjustment block and the threaded moving block respectively, and the side of the fixed block (3033) away from the connecting plate (3032) is fixedly connected to one side of the vertical slide rail (2011); The horizontal drive assembly comprises a No. 2 servo motor (3051), a No. 2 rotating rod (3052) and a rotating bracket (3053); one side of the No. 2 servo motor (3051) is fixedly mounted on one side of the support frame (2044); one end of the No. 2 rotating rod (3052) is fixedly connected to the output shaft of the No. 2 servo motor (3051); the other end passes through the rotating bracket (3053) and is connected to the transmission assembly; one side of the rotating bracket (3053) is fixedly mounted on one side of the horizontal slide rail (304); the outer side of the No. 2 rotating rod (3052) is rotatably connected to the inner side of the rotating bracket (3053) via a bearing; The transmission assembly comprises a driving bevel gear (3061) and a driven bevel gear (3062); the inner side of the driving bevel gear (3061) is fixedly connected to the outer side of the second rotating rod (3052); The second servo motor (3051) drives the second rotating rod (3052) to rotate, so as to drive the driven bevel gear (3062) meshed with the driving bevel gear (3061) to rotate, and the threaded rotating assembly rotates accordingly; The threaded rotating assembly comprises a No. 3 threaded rod (3071) and an L-shaped fixing plate (3072); one end of the No. 3 threaded rod (3071) passes through the threaded adjusting block (308) and is fixedly connected to one side of the driven bevel gear (3062), and the other end is rotationally connected to one side of the L-shaped fixing plate (3072) via a bearing; one side of the L-shaped fixing plate (3072) is fixedly mounted on one side of the horizontal slide rail (304); the threaded adjusting block (308) moves on the outside of the No. 3 threaded rod (3071) under the rotation thrust of the inner thread; The horizontal auxiliary component comprises a No. 2 wheel frame (3091), a No. 3 rotating rod (3092) and a No. 2 pulley (3093); the number of the No. 2 wheel frames (3091) is two and they are distributed in a mirror-symmetrical manner; the horizontal slide rail (304) is located between the two opposite sides of the No. 2 wheel frames (3091); the two ends of the No. 3 rotating rod (3092) are rotatably connected to the two opposite sides of the No. 2 wheel frames (3091) through bearings; the inner side of the No. 2 pulley (3093) is fixedly connected to the outer side of the No. 3 rotating rod (3092); the outer side of the No. 2 pulley (3093) is slidably connected to the inner side of the horizontal slide rail (304); one side of the threaded adjustment block (308) is fixedly mounted to one side of one of the No. 2 wheel frames (3091); and one side of the three-dimensional projection screen body (4) is fixedly mounted on one side of the threaded adjustment block (308).

2. A method for installing a holographic three-dimensional projection screen according to claim 1, characterized in that: The following steps are involved: Step 1) determining the projection area, and determining the size and position of the projection area according to the size of the three-dimensional projection screen body (4) and the requirements for the projection effect; Before determining the projection area, the size and shape of the projection screen need to be considered. The size and position of the projection area need to match the size and shape of the three-dimensional projection screen body (4) to ensure the best projection effect. The brightness and color of the projection environment also need to be considered to ensure the best projection effect. Step 2) Install the projection equipment. Select the appropriate projection equipment and install it according to the size of the projection area and the requirements of the projection effect. Step 3) The projection equipment needs to be connected to the power supply and signal cables to ensure the best projection effect. Before installing the laser equipment, the type and specifications of the laser equipment need to be considered. Different types and specifications of laser equipment require different installation methods and steps. The installation location of the laser equipment needs to match the size and location of the projection area. After installation, the laser equipment needs to be debugged to ensure the best projection effect. Step 4) installing the three-dimensional projection screen body (4). According to the requirements of the projection device, the three-dimensional projection screen body (4) is installed and debugged. Before installing the holographic imaging device, the type and specification of the three-dimensional projection screen body (4) need to be considered. Three-dimensional projection screen bodies (4) of different types and specifications require different installation methods and steps to ensure the best projection effect. During installation, the fixed base frame (1) is first moved to the designated projection area by a mobile device, and then the fixed base frame (1) is fixed by a fixing tool to ensure stability during adjustment. Then, the three-dimensional projection screen body (4) is fixedly installed on the threaded adjustment block (308). Step 5) The three-dimensional projection screen body (4) needs to be debugged. By debugging and testing the projection equipment, laser equipment and the three-dimensional projection screen body (4), it is ensured that the projection effect meets the requirements. Before debugging and testing, the following factors need to be considered: a. Steps and methods for debugging and testing. Debugging and testing need to be carried out according to certain steps and methods; b. Tools and equipment for debugging and testing. Debugging and testing require the use of certain tools and equipment; c. The environment and conditions for debugging and testing. Debugging and testing need to be carried out in a certain environment and under certain conditions; Step 6) installing the height adjustment mechanism (200) and the horizontal distance adjustment mechanism (300), and installing the height adjustment mechanism (200) and the horizontal distance adjustment mechanism (300) according to the requirements of the projection device, and performing debugging; Before installing a control system, there are several factors to consider:

1. The type and specification of the control system. Different types and specifications of control systems require different installation methods and steps; 2. Size and location of the projection area: The installation location of the control system needs to match the size and location of the projection area; Step 7) After all installations are completed, the height adjustment mechanism (200) and the horizontal distance adjustment mechanism (300) are debugged to ensure the best projection effect.

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