Holographic projection exhibition stand of intelligent exhibition hall

Abstract

The holographic projection exhibition stand comprises a projection stand body, optical glass is installed on the upper surface of the projection stand body and located in the middle of the projection stand body, a control panel is installed on the front surface of the projection stand body, and a display screen is arranged on the upper surface of the projection stand body and located on the periphery of the optical glass. Rollers are mounted on the lower surface of the projection table body and close to four corners, a moving frame is arranged behind the projection table body, turnover rods are mounted on the upper surface of the moving frame and located at the front end and the rear end, a projection window is arranged on the upper surface of the projection table body and located in the middle, and positioning rods are mounted in the turnover rods. According to the holographic projection exhibition stand of the intelligent exhibition hall, when optical glass is taken down, the optical glass can be transferred to the rear portion of the projection stand body to be carried, in this way, a larger operation space can be provided for an operator, and therefore the optical glass can be safely and conveniently taken down.

Description

Technical Field

[0001] The present invention relates to the technical field of holographic projection booths, and in particular to a holographic projection booth for a smart exhibition hall. Background Art

[0002] A holographic projection booth is a device that uses holographic technology to display virtual three-dimensional images. It generates three-dimensional images through the principles of light interference and diffraction, allowing people to see stereoscopic images that seem to float in the air. It plays an important role in smart exhibition halls, bringing new visual and interactive experiences to the audience. However, optical glass is installed on the top of the holographic projection booth, and the optical glass is large in size. When the optical glass needs to be disassembled and removed, the operator can only remove the optical glass directly from the holographic projection table after releasing the fixed installation of the optical glass. However, since the holographic projection table has a certain height and the working space is small, it is not convenient for the operator to remove the optical glass, which can easily cause the optical glass to be damaged during movement. Summary of the Invention

[0003] The main purpose of the present invention is to provide a holographic projection booth for a smart exhibition hall, which can effectively solve the technical problems in the background technology.

[0004] To achieve the above object, the technical solution adopted by the present invention is: A holographic projection booth for a smart exhibition hall includes a projection booth body, an optical glass is installed in the middle of the upper surface of the projection booth body, a control panel is installed on the front surface of the projection booth body, a display screen is provided on the upper surface of the projection booth body and outside the optical glass, rollers are installed on the lower surface of the projection booth body near the four corners, a movable frame is provided at the rear of the projection booth body, a flip rod is installed on the upper surface of the movable frame at the front and rear ends, a projection window is provided in the middle of the upper surface of the projection booth body, and a positioning rod is installed inside the flip rod.

[0005] Further preferably, a reinforcement frame is installed at the upper end of the optical glass, positioning holes are provided on the upper surface of the reinforcement frame near the four corners, a trapezoidal groove is provided on the lower surface of the reinforcement frame below the positioning holes, a fixing sleeve is installed at the lower end of the optical glass, fasteners are embedded on the upper surface of the fixing sleeve near the four corners.

[0006] Further preferably, embedding grooves compatible with the movable frame are provided on both sides of the projection table body, sliding grooves are provided on the upper surfaces of both sides of the embedding grooves, a positioning frame is installed on the upper surface of the projection table body and located on the periphery of the projection window, and a threaded groove is provided on the upper surface of the projection table body and located on the periphery of the positioning frame.

[0007] Further preferably, folding grooves are provided on the upper surfaces of both sides of the movable frame near the front and the rear, axis grooves are provided on the inner surfaces of both sides of one end of the folding groove, and a slot is provided on the inner surface of the other end of the folding groove, sliding blocks embedded in the sliding grooves are installed on the lower surfaces of both sides of the movable frame near the front, and rollers are also installed on the lower surface of the movable frame at both sides at the rear.

[0008] Further preferably, a rebound groove is provided inside the front end of the flip rod, a push-pull groove is provided on the upper surface of the rear end of the flip rod, the push-pull groove is connected to the rebound groove, and shaft rods embedded in the shaft grooves are installed on both side surfaces of the rear end of the flip rod. The flip rod is installed in the folding groove, and the flip rod is movably connected to the movable frame through the shaft rod.

[0009] Further preferably, a push-pull block is installed at the rear end of the positioning rod, the positioning rod passes through the push-pull groove and the rebound groove, a stop ring is provided on the surface of the positioning rod inside the rebound groove, and a spring is provided on the surface of the positioning rod inside the rebound groove and behind the stop ring.

[0010] Further preferably, the front end of the positioning rod is embedded in the slot, the length of the flip rod is smaller than the length of the folding slot, the lower end of the fastener is embedded in the threaded groove, and the optical glass is fixed to the projection table body by the fastener.

[0011] Further preferably, the upper end of the positioning frame is embedded in the lower end of the optical glass, and the length of the flip rod is greater than the height between the reinforcement frame and the projection table body.

[0012] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, by arranging the movable frame, the flip rod and the positioning rod to cooperate with each other, the folding groove of the movable frame can accommodate the unused flip rod. When the flip rod is folded and placed in the folding groove, the positioning rod is embedded in the slot to position the flip rod and prevent the flip rod from flipping out of the folding groove.

[0013] By arranging the optical glass, the flip rod and the positioning rod to cooperate with each other, when the flip rod is flipped and erected, since the length of the flip rod is greater than the height between the reinforcement frame and the projection table body, the flip rod can lift up the optical glass after it is erected, and the positioning rod is pulled down during the process of the flip rod being erected until the flip rod lifts up the optical glass. Then, the external force pulling the positioning rod is released, so that the positioning rod is embedded in the positioning hole under the action of the spring, so that the optical glass and the flip rod can be positioned relative to each other to avoid tilting.

[0014] By utilizing the movable rack, when the optical glass cup is lifted up, the movable rack can be pushed to move the flip rod on the movable rack and the rear of the optical glass box projection table body lifted up by the flip rod. This provides a larger working space for removing the optical glass, so that the optical glass can be removed safely and conveniently. When removing, directly lift the optical glass upwards to allow the positioning rod to withdraw from the positioning hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is an overall schematic diagram of a holographic projection booth in a smart exhibition hall of the present invention; Figure 2 This is a schematic diagram of a partial disassembly of a holographic projection booth in a smart exhibition hall according to the present invention; Figure 3 A holographic projection booth for a smart exhibition hall of the present invention Figure 1 Enlarged view of point A in the middle; Figure 4 A holographic projection booth for a smart exhibition hall of the present invention Figure 1 Enlarged view of point B in the middle; Figure 5 This is a partial cross-sectional view of a mobile frame of a holographic projection booth in a smart exhibition hall of the present invention; Figure 6 A holographic projection booth for a smart exhibition hall of the present invention Figure 5 Enlarged view of point C in the middle; Figure 7 This is a partial cross-section of a schematic diagram of the splitting of the flip rod and positioning rod of a holographic projection booth in a smart exhibition hall of the present invention.

[0016] In the figure: 1. Projection table body; 101. Positioning frame; 102. Threaded groove; 103. Embedded groove; 104. Sliding groove; 2. Control panel; 3. Optical glass; 301. Reinforcement frame; 302. Fixing sleeve; 303. Fastener; 304. Trapezoidal groove; 305. Positioning hole; 4. Display screen; 5. Moving frame; 501. Folding groove; 502. Axis groove; 503. Slot; 504. Sliding block; 6. Roller; 7. Projection window; 8. Flip rod; 801. Axis rod; 802. Push-pull groove; 803. Rebound groove; 9. Positioning rod; 901. Stop ring; 902. Spring; 903. Push-pull block. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0018] like Figure 1-4A holographic projection booth in a smart exhibition hall is shown, comprising a projection booth body 1, an optical glass 3 is installed on the upper surface and in the middle of the projection booth body 1, a control panel 2 is installed on the front surface of the projection booth body 1, a display screen 4 is installed on the upper surface and outside the optical glass 3 of the projection booth body 1, rollers 6 are installed on the lower surface and near the four corners of the projection booth body 1, a movable frame 5 is provided at the rear of the projection booth body 1, a flip rod 8 is installed on the upper surface and at the front and rear ends of the movable frame 5, a projection window 7 is provided on the upper surface and in the middle of the projection booth body 1, and a positioning rod 9 is installed inside the flip rod 8.

[0019] In a preferred embodiment: a reinforcement frame 301 is installed at the upper end of the optical glass 3, positioning holes 305 are provided on the upper surface of the reinforcement frame 301 near the four corners, a trapezoidal groove 304 is provided on the lower surface of the reinforcement frame 301 below the positioning holes 305, a fixing sleeve 302 is installed at the lower end of the optical glass 3, and fasteners 303 are embedded on the upper surface of the fixing sleeve 302 near the four corners.

[0020] In the above structure, when the flip rod 8 is flipped and erected, the flip rod 8 will flip into the trapezoidal groove 304, and because the length of the flip rod 8 is greater than the height between the reinforcement frame 301 and the projection table body 1, the flipped and erected flip rod 8 can lift the optical glass 3 as a whole, so that the positioning frame 101 is withdrawn from the lower end of the optical glass 3, and in the process of flipping and erecting the flip rod 8, the positioning rod 9 is pulled so that the front end of the positioning rod 9 is withdrawn from the slot 503, so that the flip rod 8 can be flipped and erected.

[0021] In a preferred embodiment: embedding grooves 103 compatible with the movable frame 5 are opened on both sides of the projection table body 1, sliding grooves 104 are opened on the upper surfaces of both sides of the embedding grooves 103, a positioning frame 101 is installed on the upper surface of the projection table body 1 and located on the periphery of the projection window 7, and a threaded groove 102 is opened on the upper surface of the projection table body 1 and located on the periphery of the positioning frame 101.

[0022] In the above structure, since the movable frame 5 is adapted to the embedding groove 103, and the embedding groove 103 is located on the surface of the projection stage body 1, the movable frame 5 is embedded in the embedding groove 103 when not in use, so that the movable frame 5 and the projection stage body 1 form a whole without affecting the aesthetics.

[0023] In a preferred embodiment: folding grooves 501 are provided on the upper surfaces of both sides of the mobile frame 5 near the front and rear, shaft grooves 502 are provided on the inner surfaces of one end of the folding groove 501, and a slot 503 is provided on the inner surface of the other end of the folding groove 501. Sliding blocks 504 embedded in the sliding grooves 104 are installed on the lower surfaces of both sides of the mobile frame 5 near the front, and rollers 6 are also installed on the lower surface of the mobile frame 5 and on both sides at the rear.

[0024] In the above structure, since the flip rod 8 is installed in the folding groove 501, the flip rod 8 can be folded and placed in the folding groove 501 when not in use, so that the flip rod 8 can be effectively placed. When the flip rod 8 is folded and placed in the folding groove 501, the push-pull block 903 is used to pull the positioning rod 9 so that the front end of the positioning rod 9 retracts to avoid affecting the folding placement of the flip rod 8. When the flip rod 8 is placed, the external force pulling the positioning rod 9 is released. At this time, the positioning rod 9 is embedded in the slot 503 under the action of the spring 902. In this way, the positioning rod 9 can be used to position the flip rod 8 in the folded state to avoid it from accidentally flipping out. Since the sliding block 504 is embedded in the sliding groove 104, the friction coefficient between the two must ensure that the movable frame 5 will not move without the action of a large external force. This ensures that the movable frame 5 can be stably embedded in the embedding groove 103 when not in use.

[0025] In a preferred embodiment: a rebound groove 803 is opened inside the front end of the flip rod 8, a push-pull groove 802 is opened on the upper surface of the rear end of the flip rod 8, the push-pull groove 802 is connected to the rebound groove 803, and the surfaces on both sides of the rear end of the flip rod 8 are installed with an axis rod 801 embedded in the axis groove 502, the flip rod 8 is installed in the folding groove 501, and the flip rod 8 is movably connected to the movable frame 5 through the axis rod 801.

[0026] In the above structure, since the positioning rod 9 is moved by the push-pull block 903, the push-pull groove 802 can provide a push-pull space for the push-pull block 903 of the positioning rod 9. Since the shaft rod 801 is embedded in the shaft groove 502, when the flip rod 8 flips, the shaft rod 801 can make the flip rod 8 flip around the shaft rod 801 as the center, and the shaft groove 502 can prevent the shaft rod 801 from detaching, so that the flip rod 8 can always be connected to the movable frame 5 during use.

[0027] In a preferred embodiment: a push-pull block 903 is installed at the rear end of the positioning rod 9, the positioning rod 9 passes through the push-pull groove 802 and the rebound groove 803, and a stop ring 901 is provided on the surface of the positioning rod 9 inside the rebound groove 803, and a spring 902 is provided on the surface of the positioning rod 9 inside the rebound groove 803 and behind the stop ring 901.

[0028] In the above structure, the push-pull block 903 can be used to flexibly move the positioning rod 9 so that the front end of the positioning rod 9 can be withdrawn from the slot 503, so that the flip rod 8 can be flipped upward and erected, and the positioning rod 9 is kept pulled when the flip rod 8 is flipped and erected until the flip rod 8 is flipped to a vertical state. At this time, when the external force pulling the positioning rod 9 is released, the positioning rod 9 is embedded in the positioning hole 305 under the action of the spring 902, so that when the optical glass 3 is lifted by the flip rod 8, the optical glass 3 can be positioned to prevent the flip rod 8 from flipping out of the trapezoidal groove 304 and causing the optical glass 3 to fall and be damaged. The spring 902 can keep the positioning rod 9 embedded in the positioning hole 305 or the slot 503 in a natural state.

[0029] In a preferred embodiment: the front end of the positioning rod 9 is embedded in the slot 503, the length of the flip rod 8 is less than the length of the folding groove 501, the lower end of the fastener 303 is embedded in the threaded groove 102, and the optical glass 3 is fixed to the projection table body 1 through the fastener 303.

[0030] In the above structure, since the length of the flip rod 8 is shorter than the length of the folding groove 501, when the flip rod 8 is flipped and folded in the folding groove 501, the flip rod 8 will not be unable to be flipped and placed due to being too long. Since the lower end of the fastener 303 is embedded in the threaded groove 102, the optical glass 3 can be fixed to the upper surface of the projection table body 1 by the fastener 303. After the fastener 303 is removed, the optical glass 3 can be lifted up when the flip rod 8 is flipped and upright.

[0031] In a preferred embodiment, the upper end of the positioning frame 101 is embedded in the lower end of the optical glass 3 , and the length of the flip rod 8 is greater than the height between the reinforcement frame 301 and the projection stage body 1 .

[0032] It should be noted that the present invention is a holographic projection booth for a smart exhibition hall. When in use, a holographic projection is projected onto the optical glass 3 through the projection window 7. When the optical glass 3 needs to be disassembled and removed, the fastener 303 is first disassembled, and then the push-pull block 903 is used to pull the positioning rod 9 so that the front end of the positioning rod 9 is withdrawn from the slot 503. At this time, the flip rod 8 can be flipped upward and erected, and the positioning rod 9 is kept pulled when the flip rod 8 is flipped and erected until the flip rod 8 is flipped to a vertical state. The four flip rods 8 need to be flipped and erected manually at the same time. After the flip rods 8 are flipped and erected, the optical glass 3 can be lifted up. At this time, when the external force pulling the positioning rod 9 is released, the positioning rod 9 Under the action of the spring 902, it is embedded in the positioning hole 305, so that when the optical glass 3 is lifted up by the flip rod 8, the optical glass 3 can be positioned to prevent the flip rod 8 from flipping out of the trapezoidal groove 304 and causing the optical glass 3 to fall and be damaged. When the optical glass 3 is lifted up, the movable frame 5 can be pushed to make the movable frame 5 continuously move toward the rear of the projection table main body 1 until the movable frame 5 moves to the maximum limit. At this time, the staff can lift the optical glass 3 upward to make the positioning rod 9 withdraw from the positioning hole 305, so that the optical glass can be removed, avoiding damage to the optical glass 3 caused by the small working space when removing the optical glass directly from the projection table main body 1.

[0033] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A holographic projection booth in a smart exhibition hall, characterized by: The invention comprises a projection table body (1), an optical glass (3) is installed on the upper surface and in the middle of the projection table body (1), a control panel (2) is installed on the front surface of the projection table body (1), a display screen (4) is installed on the upper surface and outside the optical glass (3) of the projection table body (1), rollers (6) are installed on the lower surface and near the four corners of the projection table body (1), a movable frame (5) is provided at the rear of the projection table body (1), a flip rod (8) is installed on the upper surface and at the front and rear ends of the movable frame (5), a projection window (7) is provided on the upper surface and in the middle of the projection table body (1), and a positioning rod (9) is installed inside the flip rod (8).

2. The holographic projection booth of a smart exhibition hall according to claim 1, characterized in that: A reinforcement frame (301) is mounted on the upper end of the optical glass (3), positioning holes (305) are provided on the upper surface of the reinforcement frame (301) near the four corners, a trapezoidal groove (304) is provided on the lower surface of the reinforcement frame (301) below the positioning holes (305), a fixing sleeve (302) is mounted on the lower end of the optical glass (3), and fasteners (303) are embedded on the upper surface of the fixing sleeve (302) near the four corners.

3. The holographic projection booth of a smart exhibition hall according to claim 2, characterized in that: Embedding grooves (103) adapted to the movable frame (5) are provided on both sides of the projection table body (1), and sliding grooves (104) are provided on the upper surfaces of both sides of the embedding grooves (103). A positioning frame (101) is installed on the upper surface of the projection table body (1) and located outside the projection window (7), and a threaded groove (102) is provided on the upper surface of the projection table body (1) and located outside the positioning frame (101).

4. The holographic projection booth of a smart exhibition hall according to claim 3, characterized in that: Folding grooves (501) are provided on the upper surfaces of both sides of the movable frame (5) near the front and rear, shaft grooves (502) are provided on the inner surfaces of one end of the folding groove (501), and a slot (503) is provided on the inner surface of the other end of the folding groove (501). Sliding blocks (504) embedded in the sliding grooves (104) are installed on the lower surfaces of both sides of the movable frame (5) near the front, and rollers (6) are also installed on the lower surface of the movable frame (5) at the rear on both sides.

5. The holographic projection booth of a smart exhibition hall according to claim 4, characterized in that: A rebound groove (803) is provided inside the front end of the flip rod (8), a push-pull groove (802) is provided on the upper surface of the rear end of the flip rod (8), the push-pull groove (802) is communicated with the rebound groove (803), and shaft rods (801) embedded in the shaft groove (502) are installed on both sides of the rear end of the flip rod (8), the flip rod (8) is installed in the folding groove (501), and the flip rod (8) is movably connected to the movable frame (5) through the shaft rod (801).

6. The holographic projection booth of a smart exhibition hall according to claim 5, characterized in that: A push-pull block (903) is installed at the rear end of the positioning rod (9), and the positioning rod (9) passes through the push-pull groove (802) and the rebound groove (803). A stop ring (901) is sleeved on the surface of the positioning rod (9) inside the rebound groove (803), and a spring (902) is sleeved on the surface of the positioning rod (9) inside the rebound groove (803) and behind the stop ring (901).

7. The holographic projection booth of a smart exhibition hall according to claim 6, characterized in that: The front end of the positioning rod (9) is embedded in the slot (503), the length of the flip rod (8) is smaller than the length of the folding groove (501), the lower end of the fastener (303) is embedded in the threaded groove (102), and the optical glass (3) is fixed to the projection table body (1) via the fastener (303).

8. The holographic projection booth of a smart exhibition hall according to claim 7, characterized in that: The upper end of the positioning frame (101) is embedded in the lower end of the optical glass (3), and the length of the flip rod (8) is greater than the height between the reinforcement frame (301) and the projection table body (1).

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