Liftable holographic projection device

Abstract

The utility model discloses a liftable holographic projection device, a lifting structure comprises a bottom plate, the inner cavities of a right vertical plate and a left vertical plate are respectively provided with a screw rod and a sliding rod, the opposite ends of sliding blocks are rotatably connected with a rotating roller through a vortex spring, the lower end of the right vertical plate is fixedly connected with a fastening block, and the lower end of the fastening block is fixedly connected with a screw rod. A sliding block, the rotating rod and a rotating roller are slidably connected to an inner cavity of the sliding groove in a sleeved mode. The liftable holographic projection device solves the problems that an existing holographic projection device is fixed, so that the projection direction is fixed, the height and angle of projection are inconvenient to adjust, the projection direction is changed, and in addition, the holographic projection device is inconvenient to store when not in use.

Description

Technical Field

[0001] The utility model relates to the technical field of projection equipment, in particular to a liftable holographic projection device. Background Art

[0002] Holographic projection technology is a type of 3D technology. It originally refers to the technology that uses the principles of interference and diffraction to record and reproduce the real three-dimensional images of objects. Later, with the guidance of science fiction movies and commercial propaganda, the concept of holographic projection gradually extended to commercial activities such as stage performances and exhibitions.

[0003] Existing holographic projection devices are all fixed, so the projection direction is fixed, so it is not convenient to adjust the height and angle of the projection to achieve the change of the projection direction. In addition, it is not convenient to store it when not in use. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a liftable holographic projection device, which solves the problem that the existing holographic projection devices are all fixed, so the projection direction is fixed, making it inconvenient to adjust the height and angle of the projection to achieve the change of the projection direction, and it is also inconvenient to store it when not in use.

[0005] To achieve the above purpose, the utility model is implemented through the following technical scheme: a liftable holographic projection device comprises a supporting leg, the top of the supporting leg is threadedly sleeved with a lifting structure, the lifting structure comprises a bottom plate, the top of the bottom plate is rotatably connected to the right vertical plate and the left vertical plate through hinges, the inner cavities of the right vertical plate and the left vertical plate are respectively provided with a screw rod and a sliding rod, the surfaces of the screw rod and the sliding rod are provided with a sliding block, the opposite end of the sliding block is rotatably connected to a rotating roller through a vortex spring, the lower end of the right vertical plate is fixedly connected with a fastening block, and the surface of the fastening block is threadedly sleeved with a fixing bolt 2, the top of the bottom plate is symmetrically provided with a sliding groove, the inner cavity of the sliding groove is slidably sleeved with a sliding block, and the top of the sliding block is rotatably connected with a rotating rod through a connecting piece, the surfaces of the rotating rod and the rotating roller are movably wrapped with a holographic projection refraction cloth, and the top of the slider is threadedly sleeved with a fastening bolt 1.

[0006] Preferably, the top of the screw rod extends to the outside of the top of the right vertical plate and is connected to a rotating handle.

[0007] Preferably, the fixing bolts are threadedly sleeved on the side surface of the base plate, and the fastening block and the side surface of the base plate are fitted to each other.

[0008] Preferably, one end of the fastening bolt abuts against the bottom of the inner cavity of the slide groove, a limiting plate is fixedly sleeved on the surface of the rotating roller, and the limiting plate fits with the surface of the right vertical plate and the left vertical plate.

[0009] Preferably, the screw rod and the sliding rod are respectively connected to the sliding block by thread and sliding.

[0010] Preferably, a mounting plate is fixedly mounted on one side of the base plate, and a projector is fixedly mounted on the top of the mounting plate.

[0011] Beneficial Effects

[0012] The utility model provides a holographic projection device that can be lifted and lowered. Compared with the prior art, it has the following advantages:

[0013] Beneficial effects:

[0014] 1. The liftable holographic projection device drives the sliding block to move up and down in the inner cavity of the right vertical plate through the screw rod, thereby driving the rotating roller to move up and down, thereby expanding the distance between the rotating rod and the rotating roller, and the two ends of the holographic projection refractive cloth will drive the rotating rod and the rotating roller to rotate, so that the holographic projection refractive cloth is opened, and at the same time, the rotating roller will drive the vortex spring to tighten when the sliding block rotates, thereby ensuring the tightening of the holographic projection refractive cloth, and the height adjustment of the holographic projection refractive cloth is realized through the lifting structure.

[0015] 2. The liftable holographic projection device can make the slider and the slide groove lose the fastening force by rotating the fastening bolt 1, and then the slider can be pushed in the inner cavity of the slide groove, thereby shortening the distance between the rotating rod and the rotating roller, so that the holographic projection refraction cloth will be retracted, and at the same time, it will rebound under the elastic force of the vortex spring to tighten the holographic projection refraction cloth, thereby ensuring the tension of the holographic projection refraction cloth, thereby adjusting the tilt angle of the holographic projection refraction cloth.

[0016] 3. The liftable holographic projection device drives the holographic projection refraction cloth to descend by the rotating roller through the screw rod. After the holographic projection refraction cloth is driven to descend to the lowest position, the second fixing bolt is rotated to make the fastening block and the bottom plate lose the fastening force, and the left and right vertical plates are rotated to make the left and right vertical plates received on the surface of the bottom plate. At the same time, the holographic projection refraction cloth will also be folded up. Finally, the mounting plate and the supporting legs are removed for easy storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the lifting structure of the utility model;

[0019] Figure 3 It is a partial schematic diagram of the lifting structure of the utility model;

[0020] Figure 4 It is a partial schematic diagram of the lifting structure of the utility model;

[0021] Figure 5 It is a partial schematic diagram of the lifting structure of the utility model;

[0022] Figure 6 It is a partial cross-sectional view of the lifting structure of the utility model;

[0023] Figure 7 It is a schematic diagram of partial disassembly of the lifting structure of the utility model.

[0024] In the figure: 1. Support leg; 2. Lifting structure; 21. Bottom plate; 22. Slide groove; 23. Right vertical plate; 24. Holographic projection refraction cloth; 25. Left vertical plate; 26. Fastening block; 27. Rotating rod; 28. Sliding block; 29. ​​Connecting piece; 210. Fastening bolt 1; 211. Screw rod; 212. Rotating roller; 213. Limiting piece; 214. Sliding block; 215. Sliding rod; 216. Fastening bolt 2; 217. Vortex spring; 3. Mounting plate; 4. Projector. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1 The utility model provides a technical solution: a liftable holographic projection device, comprising a supporting leg 1, a lifting structure 2 is threadedly sleeved on the top of the supporting leg 1, a mounting plate 3 is fixedly installed on one side of a bottom plate 21, a projector 4 is fixedly installed on the top of the mounting plate 3, the projector 4 is started to project the projected light and shadow onto a holographic projection refraction cloth 24, and the light source is projected through the refraction of the holographic projection refraction cloth 24, and a holographic display of the product is performed above.

[0027] The lifting structure 2 includes a bottom plate 21, the top of which is rotatably connected to a right vertical plate 23 and a left vertical plate 25 through hinges, and the inner cavities of the right vertical plate 23 and the left vertical plate 25 are respectively provided with a screw rod 211 and a sliding rod 215, and the screw rod 211 and the sliding rod 215 are respectively connected to a sliding block 214 by threads and sliding. The top of the screw rod 211 extends to the outside of the top of the right vertical plate 23 and is connected to a rotating handle, which drives the screw rod 211 to rotate and drives the sliding block 214 to move. The surfaces of the screw rod 211 and the sliding rod 215 are both provided with sliding blocks 214, and the opposite ends of the sliding blocks 214 are connected to the screw rod 211. The vortex spring 217 is rotatably connected to the rotating roller 212, and the surface of the rotating roller 212 is fixedly sleeved with a limiting plate 213, which is used to limit the holographic projection refraction cloth 24, and the limiting plate 213 is in contact with the surfaces of the right vertical plate 23 and the left vertical plate 25. The lower end of the right vertical plate 23 is fixedly connected with a fastening block 26, and the surface of the fastening block 26 is threadedly sleeved with a second fixing bolt 216, and the second fixing bolt 216 is threadedly sleeved on the side of the bottom plate 21, and the fastening block 26 and the side of the bottom plate 21 are in contact with each other. By rotating the second fixing bolt 216, the right vertical plate 23 and the left vertical plate 25 can be rotated to be folded.

[0028] A slide groove 22 is symmetrically provided on the top of the bottom plate 21, and a slider 28 is slidably sleeved in the inner cavity of the slide groove 22, and the top of the slider 28 is rotatably connected to a rotating rod 27 through a connecting piece 29, and the surfaces of the rotating rod 27 and the rotating roller 212 are movably wrapped with a holographic projection refractive cloth 24, and a fastening bolt 210 is threadedly sleeved on the top of the slider 28, and one end of the fastening bolt 210 abuts against the bottom of the inner cavity of the slide groove 22. The fastening bolt 210 is rotated to make the fastening bolt 210 abut against the inner cavity of the slide groove 22, so that the slider 28 can be fixed.

[0029] When in use, firstly, the support leg 1 is threadedly connected to the top of the lifting structure 2, the projector 4 is installed on the mounting plate 3, and the mounting plate 3 is installed at one end of the bottom plate 21, and then the screw rod 211 is rotated, so that the screw rod 211 drives the sliding block 214 to move up and down in the inner cavity of the right vertical plate 23, and at the same time, the sliding block 214 in the inner cavity of the left vertical plate 25 will also slide on the sliding rod 215, thereby driving the rotating roller 212 to move up and down, thereby expanding the distance between the rotating rod 27 and the rotating roller 212, and the two ends of the holographic projection refractive cloth 24 will drive the rotating rod 27 and the rotating roller 212 to rotate, so that the holographic projection refractive cloth 24 is opened, and at the same time, the rotating roller 212 will drive the vortex spring 217 to tighten when the sliding block 214 rotates, thereby ensuring the tightening of the holographic projection refractive cloth 24, realizing The height of the holographic projection refraction cloth 24 is adjusted, and the fastening bolt 210 is rotated at the same time to make the slider 28 and the slide groove 22 lose the fastening force, and then the slider 28 can be pushed in the inner cavity of the slide groove 22, thereby shortening the distance between the rotating rod 27 and the rotating roller 212, so that the holographic projection refraction cloth 24 will be retracted, and at the same time, it will rebound under the elastic force of the vortex spring 217, tightening the holographic projection refraction cloth 24 to ensure the tension of the holographic projection refraction cloth 24, thereby adjusting the inclination angle of the holographic projection refraction cloth 24, and then starting the projector 4 to project the projected light and shadow on the holographic projection refraction cloth 24, and then the light source is projected through the refraction of the holographic projection refraction cloth 24, and the holographic display of the product can be performed above, and the direction of projection can be changed by adjusting the height and angle.

[0030] In addition, when not in use, the screw rod 211 is rotated according to the above steps to make the rotating roller 212 drive the holographic projection refraction cloth 24 to descend, and after driving the holographic projection refraction cloth 24 to descend to the lowest position, the second fixing bolt 216 is rotated to make the fastening block 26 and the bottom plate 21 lose the fastening force, and the left vertical plate 25 and the right vertical plate 23 are rotated to make the left vertical plate 25 and the right vertical plate 23 received on the surface of the bottom plate 21, and the holographic projection refraction cloth 24 is also folded up, and finally the mounting plate 3 and the supporting leg 1 are removed for easy storage.

[0031] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A liftable holographic projection device, comprising a support leg (1), characterized in that: The top of the support leg (1) is threadedly sleeved with a lifting structure (2); The lifting structure (2) comprises a bottom plate (21), the top of the bottom plate (21) is rotatably connected to a right vertical plate (23) and a left vertical plate (25) via hinges, the inner cavities of the right vertical plate (23) and the left vertical plate (25) are respectively provided with a screw rod (211) and a sliding rod (215), the surfaces of the screw rod (211) and the sliding rod (215) are both provided with a sliding block (214), the opposite end of the sliding block (214) is rotatably connected to a rotating roller (212) via a vortex spring (217), the lower end of the right vertical plate (23) is provided with a screw rod (211) and a sliding rod (215 ... upper end of the right vertical plate (23) is provided with a screw rod (211) and a sliding rod (215), the upper end of the right vertical plate (23) is provided with a screw rod (211) and a sliding rod (215), the upper end of the right vertical plate (23) is provided with a screw rod (211) and a sliding rod (215), the upper end of the right vertical plate (23) is provided with a screw rod (211) and a The end of the bottom plate (21) is fixedly connected with a fastening block (26), and the surface of the fastening block (26) is threadedly sleeved with a second fixing bolt (216), the top of the bottom plate (21) is symmetrically provided with a sliding groove (22), the inner cavity of the sliding groove (22) is slidably sleeved with a slider (28), and the top of the slider (28) is rotatably connected with a rotating rod (27) through a connecting piece (29), the surfaces of the rotating rod (27) and the rotating roller (212) are movably wrapped with a holographic projection refractive cloth (24), and the top of the slider (28) is threadedly sleeved with a first fixing bolt (210).

2. The liftable holographic projection device according to claim 1, characterized in that: The top of the screw rod (211) extends to the outside of the top of the right vertical plate (23) and is connected to a rotating handle.

3. The liftable holographic projection device according to claim 1, characterized in that: The second fixing bolt (216) is threadedly sleeved on the side of the bottom plate (21), and the fastening block (26) and the side of the bottom plate (21) are in contact with each other.

4. The liftable holographic projection device according to claim 1, characterized in that: One end of the fastening bolt (210) is in contact with the bottom of the inner cavity of the slide groove (22), a limiting plate (213) is fixedly sleeved on the surface of the rotating roller (212), and the limiting plate (213) is in contact with the surfaces of the right vertical plate (23) and the left vertical plate (25).

5. The liftable holographic projection device according to claim 2, characterized in that: The screw rod (211) and the sliding rod (215) are respectively connected to the sliding block (214) by thread and sliding.

6. The liftable holographic projection device according to claim 1, characterized in that: A mounting plate (3) is fixedly mounted on one side of the base plate (21), and a projector (4) is fixedly mounted on the top of the mounting plate (3).

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