Mechanical projection screen winding mechanism for spherical screen movie device

Abstract

The utility model discloses a pure mechanical type projection screen take -up mechanism of dome screen movie device, including the chassis component and the opening -closing part, the chassis component's four around top is provided with the opening -closing part of bolt assembly, and the inside of opening -closing part's top is provided with the lifting hoist mechanism of bolt assembly, the inside top of lifting hoist mechanism is provided with the unfolding positioning part of bolt assembly, this pure mechanical type projection screen take -up mechanism of dome screen movie device utilizes the output end bolt connection of lifting hoist mechanism on unfolding positioning part, makes the arc screen of arc configuration fixedly connected through combination hinge frame, former hinged frame, rear hinged frame, plug connector, hoist arc seat and rubber band, so as to be convenient for unfolding and recycling, so when needing to clean, can be recycled into the state of integrated straight line, so that user does not have to carry out more displacement when cleaning and replacing, can improve security, and also improved work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of dome theater technology, specifically to a purely mechanical projection screen deployment and retraction mechanism for dome theater devices. Background Technology

[0002] Dome movies, also known as "dome movies" or "dome screen movies," are filmed and projected using ultra-wide-angle fisheye lenses. The auditorium has a dome-shaped structure, and the screen is hemispherical, surrounding the audience and making them see the screen as the sky. Because the screen image is large and clear, extending from in front of the audience to behind them, and accompanied by surround sound, the audience feels as if they are actually there, creating a very strong sense of immersion.

[0003] In the field of dome theater projection, the fisheye lens, a special lens with an exceptionally wide field of view, is mainly used. Its structure and function resemble a fish's eye. It projects images through a curved screen, creating realistic visuals and platform movements that draw the viewer into the story, resulting in a highly authentic and thrilling experience. However, in current technology, cleaning the curved screen is cumbersome, and the curved structure is both tedious and dangerous for staff, posing significant risks. Utility Model Content

[0004] The purpose of this invention is to provide a purely mechanical projection screen deployment and retraction mechanism for a dome theater device, in order to solve the problems mentioned in the background art.

[0005] By adopting the above technical solution, the output end of the lifting and hoisting mechanism is bolted to the unfolding and positioning component, so that the arc-shaped curtain with an arc structure is fixed and tied together by the combination of hinge frame, front hinge frame, rear hinge frame, plug connector, hoisting arc seat and rubber band, so as to facilitate unfolding and retraction. In this way, when cleaning is required, it can be retracted into a straight line, so that users do not need to make much displacement when cleaning and replacing, which can improve both safety and work efficiency.

[0006] To achieve the purpose of this utility model, the utility model is implemented through the following technical solution: a purely mechanical projection screen retraction mechanism for a dome cinema device, including a base frame assembly and an opening and closing component. The base frame assembly is provided with bolt-assembled opening and closing components on its upper periphery, and a bolt-assembled lifting and hoisting mechanism is provided on the inner side above the opening and closing components. The lifting and hoisting mechanism is provided with a bolt-assembled unfolding and positioning component on its inner top side, and a stitched and bound arc-shaped screen is provided on the inner side below the unfolding and positioning component.

[0007] The opening and closing component includes a lifting frame, an upper cross frame, a mounting block, a pneumatic telescopic rod, and an opening and closing plate. The lifting frame is bolted to the upper perimeter of the base frame assembly. An upper cross frame is provided above the lifting frame, and a mounting block is provided above the upper cross frame. A pneumatic telescopic rod is provided on the inner side of the mounting block, and an opening and closing plate is provided at the output end of the pneumatic telescopic rod.

[0008] In a preferred embodiment of the present invention, the opening and closing plate has a semi-circular plate structure and a cylindrical groove structure.

[0009] In a preferred embodiment of the present invention, the base frame assembly includes a pad, a lower crossbar, and an annular socket. The lower crossbar is disposed above the pad, and the annular socket is disposed at the inner end of the lower crossbar.

[0010] In a preferred embodiment of this utility model, the lifting and hoisting mechanism includes a cylinder base, a sleeve cylinder, a lifting beam, a hoisting rod, and an assembly plate. The cylinder base is bolted to the inner side of the middle of the upper crossbeam. A sleeve cylinder is provided on the inner side of the cylinder base, and a lifting beam is provided at the output end of the sleeve cylinder. A bolted hoisting rod is provided on the inner top side of the lifting beam, and an assembly plate is provided at the bottom end of the hoisting rod.

[0011] In a preferred embodiment of this utility model, the unfolding positioning component includes a silo, a hydraulic telescopic rod, a telescopic connecting plate, and a hinged base. The silo is bolted to the bottom of the assembly plate. The internal output end of the silo is provided with a hydraulic telescopic rod, and the telescopic connecting plate is provided below the hydraulic telescopic rod. The outer side of the telescopic connecting plate is provided with a hinged base.

[0012] In a preferred embodiment of this utility model, the unfolding positioning component further includes a combined hinge frame, a front hinge frame, a rear hinge frame, a plug connector, a lifting arc seat, and an elastic band. The outer side of the hinge base is provided with a combined hinge frame that is hinged together, and a set of front hinge frames that are hinged together are provided below the combined hinge frame. A set of rear hinge frames that are hinged together are provided above the combined hinge frame. A plug connector is provided at one lower end of the front hinge frame. A lifting arc seat is provided below the telescopic connecting disc, and an elastic band is provided on the outer side of the lifting arc seat.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: The purely mechanical projection screen deployment and retraction mechanism of this dome cinema device uses bolts to connect the output end of the lifting and hoisting mechanism to the unfolding positioning component, so that the arc-shaped screen with an arc structure is fixed and tied by a combination of hinge frame, front hinge frame, rear hinge frame, plug connector, hoisting arc seat and elastic band, so as to facilitate unfolding and retraction. In this way, when cleaning is required, it can be retracted into a straight line, so that users do not need to make much displacement when cleaning and replacing, which can improve both safety and work efficiency. Attached Figure Description

[0014] Figure 1 This is a front-view three-dimensional structural schematic diagram of the present invention;

[0015] Figure 2 This is a three-dimensional structural diagram of the present invention viewed from below;

[0016] Figure 3 This is a three-dimensional structural diagram of the base frame assembly of this utility model;

[0017] Figure 4 This is a three-dimensional structural diagram of the opening and closing component of this utility model;

[0018] Figure 5 This is a three-dimensional structural diagram of the positioning component of this utility model.

[0019] In the diagram: 1. Base frame assembly; 101. Pad block; 102. Lower crossbeam; 103. Ring socket; 2. Opening and closing components; 201. Lifting frame; 202. Upper crossbeam; 203. Set block; 204. Pneumatic telescopic rod; 205. Opening and closing plate; 3. Lifting and hoisting mechanism; 301. Hydraulic cylinder base; 302. Set hydraulic cylinder; 303. Lifting beam; 304. Hoisting rod; 305. Assembly plate; 4. Deployment and positioning components; 401. Silo; 402. Hydraulic telescopic rod; 403. Telescopic connecting plate; 404. Hinge base; 405. Combined hinge frame; 406. Front hinge frame; 407. Rear hinge frame; 408. Connector; 409. Hoisting arc seat; 4010. Rubber band; 5. Curved curtain. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-5This utility model provides a technical solution: a purely mechanical projection screen retraction mechanism for a dome movie device, including a base frame assembly 1 and an opening and closing component 2. The base frame assembly 1 is provided with bolt-assembled opening and closing components 2 on its upper periphery, and a bolt-assembled lifting and hoisting mechanism 3 is provided on the inner side above the opening and closing components 2. A bolt-assembled unfolding and positioning component 4 is provided on the inner top side of the lifting and hoisting mechanism 3, and a stitched and bound arc-shaped screen 5 is provided on the inner side below the unfolding and positioning component 4.

[0022] The opening and closing component 2 includes a lifting frame 201, an upper cross frame 202, a mounting block 203, a pneumatic telescopic rod 204, and an opening and closing plate 205. The lifting frame 201 is bolted to the upper perimeter of the base frame assembly 1. The upper cross frame 202 is provided above the lifting frame 201, and the mounting block 203 is provided above the upper cross frame 202. The pneumatic telescopic rod 204 is provided on the inner side of the mounting block 203 and is fitted with a pneumatic telescopic rod 204. The opening and closing plate 205 is provided at the output end of the pneumatic telescopic rod 204.

[0023] The opening and closing plate 205 has a semi-circular plate structure and a cylindrical groove structure.

[0024] In this embodiment, the lifting and hoisting mechanism 3 is then used to raise the unfolding positioning component 4 and the curved curtain 5, and the pneumatic telescopic rod 204 on the kit block 203 is used to output power to drive the output end to run, so that the opening and closing plate 205 opens the upper horizontal frame 202.

[0025] The base frame assembly 1 includes a pad 101, a lower crossbar 102 and an annular socket 103. The lower crossbar 102 is provided above the pad 101, and the annular socket 103 is provided at the inner end of the lower crossbar 102.

[0026] In this embodiment, during use, the equipment is placed at the processing location using the pad 101, the ring socket 103 is supported using the lower crossbeam 102, and the upper crossbeam 202 is installed on the upper crossbeam 201 using the lifting frame 201 for splicing and assembly.

[0027] The lifting and hoisting mechanism 3 includes a cylinder base 301, a set cylinder 302, a lifting beam 303, a hoisting rod 304, and an assembly plate 305. The cylinder base 301 is bolted to the inner side of the middle of the upper crossbeam 202. The set cylinder 302 is provided on the inner side of the cylinder base 301, and the lifting beam 303 is provided at the output end of the set cylinder 302. The hoisting rod 304 is bolted to the inner top side of the lifting beam 303, and the assembly plate 305 is provided at the bottom end of the hoisting rod 304.

[0028] In this embodiment, the hydraulic cylinder 302 on the cylinder base 301 is then used to output power to drive the output end to run, so that after the hydraulic cylinder 302 outputs power, the lifting beam 303 is raised, and the lifting rod 304 and the assembly plate 305 adjust the unfolding positioning component 4 to a suitable height position.

[0029] The unfolding positioning component 4 includes a silo 401, a hydraulic telescopic rod 402, a telescopic connecting plate 403, and a hinge base 404. The silo 401 is bolted to the bottom of the assembly plate 305. The hydraulic telescopic rod 402 is provided at the internal output end of the silo 401, and the telescopic connecting plate 403 is provided below the hydraulic telescopic rod 402. The hinge base 404 is provided on the outer side of the telescopic connecting plate 403.

[0030] In this embodiment, the output power is then used on the output end of the silo 401 to drive the output end to run, so that the hydraulic telescopic rod 402 drives the telescopic connecting disc 403 and the hinged base 404 to adjust to a suitable telescopic length.

[0031] The unfolding positioning component 4 also includes a combined hinge frame 405, a front hinge frame 406, a rear hinge frame 407, a plug connector 408, a lifting arc seat 409, and an elastic band 4010. The combined hinge frame 405 is hinged to the outer side of the hinge base 404, and a set of front hinge frames 406 are hinged to the lower part of the combined hinge frame 405. A set of rear hinge frames 407 are hinged to the upper part of the combined hinge frame 405. A plug connector 408 is provided at the lower end of the front hinge frame 406. A lifting arc seat 409 is provided below the telescopic connecting disc 403, and an elastic band 4010 is provided on the outer side of the lifting arc seat 409.

[0032] In this embodiment, after the telescopic connecting plate 403 and the hinge base 404 are telescopically extended to a suitable length position, the hinge expansion and contraction adjustment of the combined hinge frame 405, the front hinge frame 406, and the rear hinge frame 407 is used to make the plug 408 plug into the ring socket 103. This allows the tension adjustment of the hanging arc base 409 and the elastic band 4010 to unfold the arc screen 5, thereby achieving the effect of facilitating image projection.

[0033] The working principle of the purely mechanical projection screen retraction mechanism of this dome cinema device is as follows: During use, the equipment is placed at the processing location using the pad 101. The lower horizontal frame 102 supports the annular socket 103, and the upper horizontal frame 202 is assembled using the lifting frame 201. Then, the lifting and hoisting mechanism 3 is used to raise the unfolding positioning component 4 and the curved screen 5. The pneumatic telescopic rod 204 on the mounting block 203 outputs power to drive the output end, causing the opening and closing plate 205 to open the upper horizontal frame 202. Next, the hydraulic cylinder 302 on the hydraulic cylinder base 301 outputs power to drive the output end, so that after the hydraulic cylinder 302 operates, the upper horizontal frame 202 is opened. After the lifting beam 303 is raised, the hoisting rod 304 and the assembly plate 305 adjust the unfolding positioning component 4 to a suitable height position. Then, the output end on the silo 401 outputs power to drive the output end to run, which causes the hydraulic telescopic rod 402 to drive the telescopic connecting plate 403 and the hinge base 404 to adjust to a suitable telescopic length. When the telescopic connecting plate 403 and the hinge base 404 are telescopic to a suitable length position, the hinge expansion and contraction adjustment of the combined hinge frame 405, the front hinge frame 406, and the rear hinge frame 407 causes the plug 408 to be plugged into the ring socket 103. In this way, the tension adjustment of the hoisting arc seat 409 and the elastic band 4010 allows the curved screen 5 to unfold, thereby achieving the effect of facilitating image projection.

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

Claims

1. A purely mechanical projection screen retraction mechanism for a dome cinema device, comprising a base frame assembly (1) and an opening / closing component (2), characterized in that: The base frame assembly (1) is provided with bolted opening and closing components (2) on its upper periphery, and a bolted lifting and hoisting mechanism (3) is provided on the inner side above the opening and closing components (2). A bolted unfolding and positioning component (4) is provided on the inner top side of the lifting and hoisting mechanism (3), and a stitched and bound arc-shaped curtain (5) is provided on the inner side below the unfolding and positioning component (4). The opening and closing component (2) includes a lifting frame (201), an upper cross frame (202), a sleeve block (203), a pneumatic telescopic rod (204), and an opening and closing plate (205). The lifting frame (201) is bolted to the upper perimeter of the base frame assembly (1). The upper cross frame (202) is provided above the lifting frame (201), and the sleeve block (203) is provided above the upper cross frame (202). The pneumatic telescopic rod (204) is provided on the inner side of the sleeve block (203), and the opening and closing plate (205) is provided at the output end of the pneumatic telescopic rod (204).

2. The purely mechanical projection screen retraction mechanism of the dome cinema device according to claim 1, characterized in that: The opening and closing plate (205) has a semi-circular plate structure and a cylindrical groove structure.

3. The purely mechanical projection screen retraction mechanism of the dome cinema device according to claim 1, characterized in that: The base frame assembly (1) includes a pad (101), a lower crossbar (102) and an annular socket (103). The lower crossbar (102) is provided above the pad (101), and the annular socket (103) is provided at the inner end of the lower crossbar (102).

4. The purely mechanical projection screen retraction mechanism of the dome cinema device according to claim 1, characterized in that: The lifting and hoisting mechanism (3) includes a cylinder base (301), a sleeve cylinder (302), a lifting beam (303), a hoisting rod (304), and an assembly plate (305). The cylinder base (301) is bolted to the inner side of the middle of the upper cross frame (202). The sleeve cylinder (302) is provided on the inner side of the cylinder base (301), and the output end of the sleeve cylinder (302) is provided with a lifting beam (303). The inner top side of the lifting beam (303) is provided with a bolted hoisting rod (304), and the bottom end of the hoisting rod (304) is provided with an assembly plate (305).

5. The purely mechanical projection screen retraction mechanism of the dome cinema device according to claim 4, characterized in that: The unfolding positioning component (4) includes a silo (401), a hydraulic telescopic rod (402), a telescopic connecting plate (403), and a hinge base (404). The silo (401) is bolted to the bottom of the assembly plate (305). The internal output end of the silo (401) is provided with a hydraulic telescopic rod (402), and the telescopic connecting plate (403) is provided below the hydraulic telescopic rod (402). The outer side of the telescopic connecting plate (403) is provided with a hinge base (404).

6. The purely mechanical projection screen retraction mechanism of the dome cinema device according to claim 5, characterized in that: The unfolding positioning component (4) also includes a combined hinge frame (405), a front hinge frame (406), a rear hinge frame (407), a plug connector (408), a lifting arc seat (409), and a rubber band (4010). The outer side of the hinge base (404) is provided with a combined hinge frame (405) that is hinged together. A set of front hinge frames (406) that are hinged together are provided below the combined hinge frame (405). A set of rear hinge frames (407) that are hinged together are provided above the combined hinge frame (405). A plug connector (408) is provided at one end of the lower part of the front hinge frame (406). A lifting arc seat (409) is provided below the telescopic connecting disc (403), and a rubber band (4010) is provided on the outer side of the lifting arc seat (409).

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