TWM645339U - Movable dome projection device - Google Patents

Abstract

A movable dome projection device includes a skeleton unit and a dome unit. The skeleton unit includes a plurality of combination boards and a plurality of support frames connecting the combination boards. Any three adjacent supporting frames and the corresponding three combining plates surround a triangular intersection area. The dome screen unit includes a projection inner screen arranged inside the frame unit, and an outer covering screen arranged outside the frame unit. The intersection areas formed by the support frames are triangular. This structure can produce a hemispherical shell with higher true roundness, thereby improving the image presentation effect.

Description

Movable dome projection device

The invention relates to a large-scale audio-visual equipment, in particular to a movable dome projection device.

A general dome projection device allows the projection equipment to project images onto its hemispherical inner screen, so that the audience in the dome projection device can be surrounded by the images, achieving a panoramic view and an immersive experience. There are many types of dome projection devices. In addition to indoor dome projection devices that are installed with buildings and are suitable for theaters and other places, there are also outdoor dome projection devices that are installed outdoors and are suitable for open-air venues. In addition to being able to block light, waterproof, windproof and resist other interference factors in the outdoor environment, the outdoor dome projection device must adopt a detachable structure so that the dome projection device can be quickly set up and installed in Improve the overall versatility in different outdoor venues.

The skeleton of a general outdoor dome projection device is composed of multiple metal brackets that surround the radial and circumferential directions, and then the inner curtain is laid on it. However, the intersection area formed by such a stent that extends and surrounds in the radial and circumferential directions is quadrilateral, and it is geometrically difficult to assemble multiple quadrilaterals into a hemispherical shell with a high degree of true roundness. In addition, When the inner curtain is laid, it is easy to have poor fit, resulting in a further reduction in the true roundness of the inner curtain. This is an obstacle that needs to be overcome for the future trend of improving immersion.

Therefore, the purpose of the present invention is to provide a movable dome projection device with relatively high true roundness.

Therefore, the new movable dome projection device includes a skeleton unit and a dome unit covering the skeleton unit. The skeleton unit includes a plurality of bonding plates spaced apart from each other, and a plurality of support frames that connect the bonding plates and cooperate with the bonding plates to form a hemispherical shell shape. Two ends of each support frame are respectively connected to two of the combination plates. Any three adjacent supporting frames and the corresponding three combining plates surround a triangular intersection area.

The dome screen unit includes a projection inner screen arranged inside the frame unit and in the shape of a hemispherical shell, and an outer cover arranged outside the frame unit and matching the projection inner screen to cover the frame unit and in the shape of a hemispherical shell. Curtain. The projection screen surrounds an audio-visual space. The projection inner screen and the outer covering screen cooperate to define an internal space that accommodates the skeleton unit and is located outside the audio-visual space. The outer covering screen defines at least one air extraction port that connects the outside world and the internal space in one direction.

The effect of the present invention is that the intersection areas formed by the support frames are triangular. This structure can produce a hemispherical shell with higher true roundness, thereby improving the image presentation effect. In addition, the at least one air outlet can evacuate the internal space so that the projection inner screen and the outer covering screen fit the frame unit to ensure that the true roundness is maintained.

Referring to Figures 1, 2, and 3, one embodiment of the new movable dome projection device includes a frame unit 1 and a dome unit 2 covering the frame unit 1. The skeleton unit 1 includes a plurality of coupling plates 11 spaced apart from each other, and a plurality of support frames 12 fixed on the coupling plates 11 in a screw-lock manner. Referring to Figures 2, 3, and 4, several of the combining plates 11 located at the lowest position are respectively connected to four support frames 12 as shown in Figure 3, and the one at the highest position is connected to the supporting frames 12. 11 connects five of the support frames 12 , and the remaining combination plates 11 connect six of the support frames 12 as shown in FIG. 4 . Two ends of each support frame 12 are respectively connected to two corresponding combination plates 11 . The combination plates 11 and the support frames 12 cooperate to form a hemispherical shell, and any three adjacent support frames 12 and the corresponding three combination plates 11 surround a triangular intersection area. 13.

Referring to Figures 1, 2, and 5, the dome unit 2 includes a hemispherical shell-shaped projection inner screen 21 disposed inside the frame unit 1, and a projection inner screen 21 disposed outside the frame unit 1. The outer covering screen 22 that covers the frame unit 1 and is in the shape of a hemispherical shell, a ring of Velcro straps 23 located on the outer side of the projection inner screen 21 and extending along the bottom edge of the projection inner screen 21, and a ring of hook-and-loop fasteners 23 on The Velcro felt 24 is formed on the inner side of the outer covering screen 22 and extends along the bottom edge of the outer covering screen 22 . The projection inner screen 21 surrounds an audio-visual space 211. The projection inner screen 21 and the outer covering screen 22 cooperate to define an internal space 25 that accommodates the skeleton unit 1 and is located outside the audio-visual space 211 . In this embodiment, the inner projection screen 21 is a projection cloth with an inner diameter of approximately 11,800 mm, and the outer covering screen 22 is a waterproof cloth with an inner diameter of approximately 12,000 mm. The outer covering screen 22 defines two air extraction openings 221 (only one of which is shown in Figure 1 due to the viewing angle) that connects the outside world and the internal space 25 in one direction. The diameter of each air extraction opening 221 is 300mm and the height is 450mm. And the depth is 500mm. The hook and loop tape 23 and the Velcro felt 24 are detachably bonded, and the air extraction ports 221 will not allow the air in the internal space 25 to flow out to the outside when the vacuum is not being evacuated, thus the internal space 25 can be sealed. . It should be noted that the number, diameter, height and depth of the air extraction ports 221 need to be adjusted accordingly depending on the overall size of the dome unit 2, and are not limited to the above.

When this embodiment is used, the combination plates 11 and the support frames 12 are first connected, and then the projection inner screen 21 and the outer covering screen 22 are respectively arranged on the inner and outer sides of the frame unit 1. After bonding the After the Velcro tape 23 and the Velcro felt 24 are installed, the internal space 25 can be evacuated through the air extraction ports 221, so that the projection inner screen 21 and the outer cover screen 22 fit the frame unit 1, thereby having a better of true roundness. In addition, the skeleton unit 1 and the dome unit 2 can open additional entrances and exits 3 according to actual needs, so that the audience can enter the audio-visual space 211, and the projection inner screen 21 and the outer covering screen 22 can also be installed at the entrances and exits 3. There are mutually bonded fasteners to maintain the sealing of the internal space 25 .

In summary, the skeleton unit 1 of this embodiment of the new movable dome projection device can be quickly disassembled and assembled, has high mobility and is suitable for outdoor use, and can also be light-shielded, waterproof, and windproof. In addition, through the triangular design of the intersection areas 13 and the fact that the outer covering screen 22 and the projection inner screen 21 are firmly attached to the frame unit 1 in a vacuum manner, the overall appearance of this embodiment can be maintained high. The true roundness enables the projection inner screen 21 to present a better projection visual effect, so it can indeed achieve the purpose of the present invention.

However, the above are only examples of the present invention, and should not be used to limit the scope of the present invention. All simple equivalent changes and modifications made based on the patent scope of the present invention and the content of the patent specification are still within the scope of the present invention. Within the scope covered by this new patent.

1: Skeleton unit 11:Combining board 12: Support frame 13:Meeting area 2:Dome unit 21: Projection inside story 211:Audiovisual space 22: Covered with curtain 221:Exhaust port 23: Hook and loop tape 24:Devil Felt 25:Internal space 3: Entrance and exit A: Circled place B: Circled place C: Circled place

Other features and functions of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: Figure 1 is a perspective view illustrating one embodiment of the new movable dome projection device; Figure 2 is a perspective view illustrating a skeleton unit of this embodiment; Figure 3 is a partial enlarged view, illustrating the enlarged view of the area A circled in Figure 2; Figure 4 is a partially enlarged view illustrating the enlarged view of area B circled in Figure 2; and FIG. 5 is a partially enlarged cross-sectional view, illustrating the enlarged cross-sectional view of the circled point C in FIG. 1 .

1: Skeleton unit

11:Combining board

12: Support frame

13:Meeting area

3: Entrance and exit

A: Circled place

B: Circled place

Claims (4)

A movable dome projection device, including: A skeleton unit includes a plurality of bonding plates spaced apart from each other, and a plurality of hemispherical shell-shaped support frames connecting the bonding plates and matching the bonding plates. The two ends of each support frame are respectively connected to two of them. Each of the three bonding plates, any three adjacent support frames and the corresponding three bonding plates surround a triangular intersection area; and A dome screen unit includes a hemispherical shell-shaped projection inner screen arranged on the inside of the frame unit, and a hemispherical shell-shaped outer screen arranged on the outside of the frame unit and matching with the projection inner screen to cover the frame unit. Covering screen, the projection inner screen surrounds an audio-visual space, the projection inner screen and the outer covering screen cooperate to define an internal space that accommodates the skeleton unit and is located outside the audio-visual space, and the outer covering screen defines at least An air extraction port that connects the outside world and the internal space in one direction. The movable dome projection device as claimed in claim 1, wherein the dome unit also has at least one hook and loop strip arranged on the outer side of the projection inner screen and extending along the bottom edge of the projection inner screen, and at least one The at least one Velcro strip is detachably bonded to the at least one Velcro felt on the inner side of the outer covering screen and extending along the bottom edge of the outer covering screen. The movable dome projection device as claimed in claim 1, wherein several of the lowermost bonding plates of the skeleton unit are each connected to four of the support frames, and the highest bonding plate is connected to five Each of the remaining combination plates is connected to six of the supporting frames. The movable dome projection device as claimed in claim 1, wherein two ends of each support frame of the skeleton unit are respectively fixed to the two corresponding combination plates in a screw lock manner.

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