Hemispherical screen structure

Abstract

The present application discloses a hemispherical screen structure, which belongs to the field of spherical screen projection technology. It includes an outer layer structure, an inner layer structure and a bracket. The outer layer structure includes an outer spherical grid frame and a customized aluminum plate. The customized aluminum plate is fixedly connected to the outer side of the outer spherical grid frame. The inner layer structure includes an inner spherical grid frame, a curtain plate and a truss. The curtain plate is arranged on the inner side of the inner spherical grid frame. The truss is fixedly connected to the lower end of the inner spherical grid frame. The outer spherical grid frame and the truss are both fixedly connected to the bracket. The hemispherical screen structure adopts a double-layer grid structure, which is not only waterproof and dustproof, but also beautiful in shape. The double-layer grid structure is firm and stable, and has a light weight. At the same time, the various components of the hemispherical screen structure adopt a modular design, and production, installation and maintenance are relatively simple and convenient.

Description

Technical Field

[0001] The present application relates to the technical field of spherical screen projection, and in particular to a hemispherical screen structure. Background Art

[0002] Dome projection technology is an emerging display technology that breaks the limitation that the previous projection images can only be regular flat graphics. According to the different projection methods, dome projection technology can be divided into external projection and internal projection. The screen of the internal projection dome is a spherical rear projection screen. The projector placed inside the dome projects the image onto almost the entire spherical screen, and the audience can see that the entire dome is covered with images. The internal projection dome can play specially made videos as well as ordinary videos and movies.

[0003] At present, dome screens are divided into two types: hard dome screens and inflatable soft dome screens. Hard dome screens are generally made of glass fiber reinforced plastic plate materials prefabricated into screen panels, which are then assembled. When installing, the base ring is first connected to the suspension chain, pillar, steel beam or base wall, and then the dome screen keel and grid are installed on the base ring. Finally, the prefabricated screen pieces are assembled on the dome screen grid in a certain order. This kind of hard dome screen has a complex structure, is difficult to manufacture and maintain, and has a long installation period.

[0004] At present, the steel frame structure of the ball screen is usually made of reinforced concrete structure or short straight steel keels directly spliced ​​together. The reinforced concrete structure requires a lot of concrete and is heavy, while the installation of short straight steel keels spliced ​​into a spherical shape is more complicated and difficult to form. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present application provides a hemispherical curtain structure, which adopts a double-layer grid structure and modularizes various components, has a simple structure, and is easy to install and maintain.

[0006] A hemispherical curtain structure includes an outer layer structure, an inner layer structure and a bracket, wherein the outer layer structure includes an outer spherical grid frame and a custom-shaped aluminum plate, wherein the custom-shaped aluminum plate is fixedly connected to the outer side of the outer spherical grid frame, and the inner layer structure includes an inner spherical grid frame, a curtain plate and a truss, wherein the curtain plate is arranged on the inner side of the inner spherical grid frame, wherein the truss is fixedly connected to the lower end of the inner spherical grid frame, and wherein the outer spherical grid frame and the truss are both fixedly connected to the bracket. The hemispherical curtain structure adopts a double-layer grid structure, which is not only waterproof and dustproof, but also beautiful in appearance. The double-layer grid structure is firm and stable, and has a light weight. At the same time, each component of the hemispherical curtain structure adopts a modular design, and production, installation and maintenance are relatively simple and convenient.

[0007] Furthermore, the outer ball grid and the inner ball grid are both composed of a plurality of longitudinal arc keels and a plurality of transverse arc keels arranged in a crisscross pattern. The crisscross pattern design enables the outer ball grid and the inner ball grid to transmit loads by the axial force of the rods, which saves steel and reduces deadweight.

[0008] Furthermore, the surfaces of the plurality of longitudinal arc keels, the plurality of transverse arc keels, the outer ball grid and the inner ball grid are all sprayed with metal anti-rust paint. The metal anti-rust paint can improve the anti-rust ability of the hemispherical curtain structure.

[0009] Furthermore, the connection between the plurality of longitudinal arc keels and the plurality of transverse arc keels on the outer ball grid is fixed by welding. The welding method makes the connection between the longitudinal arc keels and the transverse arc keels more firm, thereby increasing the service life.

[0010] Furthermore, the connections between the plurality of longitudinal arc keels and the plurality of transverse arc keels on the inner ball grid frame are fixed by riveting.

[0011] Furthermore, the curtain panel is riveted and fixed to the inner side of the inner ball grid frame. The riveting connection has a small deformation during connection, which is more convenient for the installation and fixation of the curtain panel.

[0012] Furthermore, the trusses are respectively welded and fixed to the lower end of the inner ball net frame and the top end of the bracket to enhance the firmness of the connection.

[0013] Furthermore, the bracket is welded and fixed to the truss and the outer spherical grid through the iron plate, thereby enhancing the overall stability of the hemispherical curtain structure.

[0014] In summary, the hemispherical curtain structure provided by the present application adopts a double-layer grid structure, which is not only waterproof and dustproof, but also beautiful in appearance. The double-layer grid structure is firm and stable, and has a light weight. At the same time, the various components of the hemispherical curtain structure adopt a modular design, and the production, installation, and maintenance are relatively simple and convenient, which effectively solves the problem that the steel frame structure of the existing dome curtain is heavy and difficult to shape. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of a hemispherical screen structure provided in an embodiment of the present application;

[0016] Figure 2 An exploded schematic diagram of an outer structure in a hemispherical curtain structure provided in an embodiment of the present application;

[0017] Figure 3 An exploded schematic diagram of an inner structure in a hemispherical curtain structure provided in an embodiment of the present application.

[0018] Among them: 10-outer structure, 101-outer ball grid, 102-customized aluminum plate, 20-inner structure, 201-inner ball grid, 202-curtain board, 203-truss, 204-porous disc, 30-bracket, 40-longitudinal arc keel, 50-transverse arc keel. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0020] See also Figures 1 to 3 A hemispherical curtain structure includes an outer structure 10, an inner structure 20 and a bracket 30. The bottom of the bracket 30 is fixedly installed on a cement foundation to support the outer structure 10 and the inner structure 20.

[0021] The outer structure 10 includes an outer ball grid 101 and a custom-shaped aluminum plate 102. The outer ball grid 101 is composed of a plurality of identical longitudinal arc keels 40 and a plurality of identical transverse arc keels 50 arranged in a crisscross pattern. The connection between the plurality of longitudinal arc keels 40 and the plurality of transverse arc keels 50 on the outer ball grid 101 is fixedly connected by welding. The longitudinal arc keels 40 and the transverse arc keels 50 have an arc-shaped cross-section, so they are staggered to form a hemispherical shape. The custom-shaped aluminum plate 102 is installed on the outside of the outer ball grid 101 through a connector, and a colloid is used to seal the installation gap to play a role of rainproof and aesthetic. The custom-shaped aluminum plate 102 not only serves as the outer layer protection of the hemispherical curtain structure to prevent the interior of the hemispherical curtain structure from being affected by moisture, dust, etc., but also plays a decorative role. The custom-shaped aluminum plate 102 can adopt a "pineapple", "football", "melon slice", "triangle" and other shaped structures according to needs.

[0022] See also Figure 3 The inner structure 20 includes an inner ball grid frame 201, a curtain board 202 and a truss 203. The inner ball grid frame 201 is also composed of a plurality of identical longitudinal arc keels 40 and a plurality of identical transverse arc keels 50 arranged in a crisscross pattern. The connection between the plurality of longitudinal arc keels 40 and the plurality of transverse arc keels 50 on the inner ball grid frame 201 is fixed by riveting with a porous disc 204. The curtain board 202 is fixed to the inner side of the inner ball grid frame 201 by riveting with the porous disc 204. The inner ball grid frame 201 and the curtain board 202 constitute a ball screen body of a hemispherical screen structure, and the curtain board 202 is a hemispherical projection screen.

[0023] The truss 203 is arranged at the lower end of the inner ball net frame 201, and is respectively welded to the inner ball net frame 201 and the bracket 30, so that the inner ball net frame 201 is fixedly connected to the bracket 30. The lower end of the outer ball net frame 101 is also welded to the top of the bracket 30. The bracket 30 serves as the bottom support of the hemispherical curtain structure, supporting the outer structure 10 and the inner structure 20.

[0024] Specifically, the top end of the bracket 30 is welded to the outer spherical grid 101 and the truss 203 through an iron plate, thereby enhancing the overall stability of the hemispherical curtain structure.

[0025] Specifically, the surfaces of the plurality of longitudinal arc keels 40, the plurality of transverse arc keels 50, the outer ball grid 101 and the inner ball grid 201 are sprayed with metal anti-rust paint to prevent rust.

[0026] The hemispherical curtain structure of the present application adopts a double-layer structure, which effectively protects the spherical curtain body and has a beautiful external structure. The outer spherical grid 101, the customized aluminum plate 102, the inner spherical grid 201, the curtain plate 202, and the truss 203 of the hemispherical curtain structure are all regular modular structures, which are simpler and more convenient to produce, install, and maintain. In addition, the outer spherical grid 101 and the inner spherical grid 201 rely on the axial force of the rod to transmit the load, which not only saves steel but also reduces the dead weight. The steel content of the grid design is close to that of the reinforced concrete structure under the same conditions in the prior art, which can save a lot of concrete and reduce the dead weight by 70-80%. Compared with ordinary steel structures, it can save 20-50% of steel.

[0027] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the application disclosed herein. The present application is intended to cover any variations, uses or adaptations of the present application, which follow the general principles of the present application and include common knowledge or customary techniques in the art that are not disclosed in the present application. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present application are indicated by the following claims.

[0028] It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A hemispherical screen structure, characterized in that: The invention comprises an outer layer structure (10), an inner layer structure (20) and a bracket (30), wherein the outer layer structure (10) comprises an outer ball net frame (101) and a custom-shaped aluminum plate (102), wherein the custom-shaped aluminum plate (102) is fixedly connected to the outer side of the outer ball net frame (101), and the inner layer structure (20) comprises an inner ball net frame (201), a curtain plate (202) and a truss (203), wherein the curtain plate (202) is arranged on the inner side of the inner ball net frame (201), and the truss (203) is fixedly connected to the lower end of the inner ball net frame (201), and the outer ball net frame (101) and the truss (203) are both fixedly connected to the bracket (30).

2. The hemispherical screen structure according to claim 1, characterized in that: The outer ball grid frame (101) and the inner ball grid frame (201) are both composed of a plurality of longitudinal arc keels (40) and a plurality of transverse arc keels (50) arranged in a crisscross pattern.

3. The hemispherical screen structure according to claim 2, characterized in that: The surfaces of the plurality of longitudinal arc keels (40), the plurality of transverse arc keels (50), the outer ball grid frame (101) and the inner ball grid frame (201) are all sprayed with metal anti-rust paint.

4. The hemispherical screen structure according to claim 3, characterized in that: The connection points of the plurality of longitudinal arc-shaped keels (40) and the plurality of transverse arc-shaped keels (50) on the outer ball grid frame (101) are fixed by welding.

5. The hemispherical screen structure according to claim 3, characterized in that: The connection points of the plurality of longitudinal arc-shaped keels (40) and the plurality of transverse arc-shaped keels (50) on the inner ball grid frame (201) are fixed by riveting.

6. The hemispherical screen structure according to claim 5, characterized in that: The curtain plate (202) is riveted and fixed on the inner side of the inner ball net frame (201).

7. The hemispherical screen structure according to claim 6, characterized in that: The truss (203) is respectively welded and fixed to the lower end of the inner ball net frame (201) and the top end of the bracket (30).

8. The hemispherical screen structure according to claim 7, characterized in that: The support (30) is fixed to the truss (203) and the outer ball grid frame (101) by welding through an iron plate.

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