Quick folding mechanism for film and television level green screen background

Abstract

The utility model discloses a film and television level green screen background rapid folding mechanism, which comprises two supporting columns, folding storage mechanisms and a fixing assembly, the folding storage mechanisms and the fixing assembly are arranged at the upper ends of the two supporting columns and are distributed up and down, one side of the outer wall of a fixing ring is rotatably connected with a green screen mounting rod, and the outer wall of the other supporting column is slidably connected with a movable ring. Limiting clamping blocks are fixedly arranged on the two sides of the inner wall of the fixed ring and the two sides of the inner wall of the movable ring correspondingly, and limiting sliding grooves are formed in the two sides of the outer walls of the two supporting columns correspondingly. According to the utility model, the two supporting columns are pulled, the green screen mounting rod drives the movable ring to slide on the other supporting column, so that the inner wall of the green screen mounting rod extrudes the buckle, when the movable ring slides to the top of the supporting column, the buckle clamps the movable ring, at the moment, the green screen mounting rod is horizontally fixed, and a green screen background can be built; and the movable ring is pressed down forcibly to slide down, so that the green screen mounting rod and the two supporting columns are mutually folded and stored, the green screen building efficiency is improved, and meanwhile, the shooting progress is accelerated.

Description

Technical Field

[0001] This utility model relates to the technical field of green screen background construction, specifically a film-grade green screen background quick-folding mechanism. Background Technology

[0002] Blue screens and green screens are both background backdrops for shooting special effects scenes. Actors perform in front of blue screens and green screens, which are then filmed by cameras. The footage is processed on a computer to remove the blue or green background and replace it with another background. Green screen backdrops are used more frequently in film and television shooting bases. During the use of green screens, they need to be unfolded, so various support equipment is required to set them up. With the development of technology, such quick-folding mechanisms play a very important role in facilitating the assembly and disassembly of green screens and improving shooting efficiency.

[0003] However, in existing technologies, when setting up and dismantling green screen backdrops, various brackets are typically used for splicing during rapid assembly and disassembly. After assembly, the green screen backdrop is unfolded and laid on the brackets for use. During disassembly, it is still necessary to disassemble each bracket and connecting rod. Since the connecting rods are mostly connected and fixed to the brackets with screws and other fasteners, the staff needs to spend a lot of effort on disassembly and assembly, which is very time-consuming and labor-intensive, reducing the efficiency of green screen assembly and disassembly, and thus affecting the film and television shooting schedule. In response, this design proposes a film-grade green screen backdrop rapid folding mechanism. Utility Model Content

[0004] The purpose of this invention is to provide a film-grade green screen background quick-folding mechanism to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model proposes a film-grade green screen background quick-folding mechanism, including two support columns, a folding and storage mechanism installed on the upper ends of the two support columns in an upward and downward distribution, and a fixing component;

[0006] The folding and storage mechanism includes a fixed ring fixed to the top of one of the support columns. A green screen mounting rod is rotatably connected to one side of the outer wall of the fixed ring. A movable ring is slidably connected to the outer wall of the other support column, and one end of the green screen mounting rod is rotatably connected to one side of the outer wall of the movable ring. A locking hole is provided on one side of the inner wall of the movable ring. Limiting blocks are fixed on both sides of the inner wall of the fixed ring and both sides of the inner wall of the movable ring. Limiting grooves are provided on both sides of the outer walls of the two support columns, and the outer walls of the four limiting blocks are slidably connected to the inner walls of the four limiting grooves respectively. An installation hole is provided at the upper edge of one side of the outer wall of one of the support columns, and a buckle is inserted through the inner wall of the installation hole.

[0007] In one example, a spring is fixedly provided on one side of the inner wall of the mounting hole, and one end of the spring is fixedly connected to one side of the buckle. The inner wall of one end of the buckle is inserted and connected to the inner wall of the buckle hole.

[0008] In one example, the fixing component includes connecting rings fixedly installed at the lower edge of the outer wall of two support columns, and connecting clips are fixedly provided on both sides of the two connecting rings.

[0009] In one example, the inner walls of the four connecting strips are rotatably connected to connecting rods, with one end of two of the connecting rods rotatably connected to one end of the other two connecting rods respectively.

[0010] In one example, each of the two connecting rods has a connecting hole at one edge, and a pin is inserted into the inner wall of the two connecting holes. A triangular bracket is fixedly installed at the bottom of each of the two support columns.

[0011] Compared with existing technologies, the advantages of this invention are as follows: By setting up a quick-folding mechanism, when assembling and disassembling the green screen background, the staff only needs to pull the two support columns to move them away from or closer to each other. This causes the green screen mounting rod to rotate on the fixed ring, which in turn slides the movable ring on the other support column, causing its inner wall to press against the buckle. When the movable ring slides to the top of the support column, the buckle locks it in place. At this point, the green screen mounting rod is horizontally fixed, and the green screen background can be set up. After shooting, the movable ring is pressed down to make it slide down, allowing the green screen mounting rod and the two support columns to fold and store together. During the entire folding and storage process, no reinforcement parts are needed, improving the efficiency of green screen setup and increasing the shooting progress. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the overall folding structure of this utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the quick-folding mechanism of this utility model;

[0015] Figure 4 Appendix to the specification of this utility model Figure 2 Enlarged structural diagram at point A;

[0016] Figure 5 This is a schematic diagram of the structure of the fixing component of this utility model;

[0017] Figure 6 Appendix to the specification of this utility model Figure 1 Enlarged structural diagram at point B.

[0018] In the diagram: 1. Support column; 2. Folding and storage mechanism; 201. Fixing ring; 202. Green screen mounting rod; 203. Movable ring; 204. Snap hole; 205. Limiting block; 206. Limiting groove; 207. Mounting hole; 208. Buckle; 209. Spring; 3. Fixing component; 301. Connecting ring; 302. Connecting strip; 303. Connecting rod; 304. Connecting hole; 305. Pin; 4. Triangular bracket. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-6 This utility model provides a technical solution: a film-grade green screen background quick folding mechanism, including two support columns 1, a folding and storage mechanism 2 that is installed on the upper end of the two support columns 1 and distributed in an upward and downward manner, and a fixing component 3;

[0021] The folding storage mechanism 2 includes a fixed ring 201 fixed to the top of one of the support columns 1. A green screen mounting rod 202 is rotatably connected to one side of the outer wall of the fixed ring 201. A movable ring 203 is slidably connected to the outer wall of the other support column 1, and one end of the green screen mounting rod 202 is rotatably connected to one side of the outer wall of the movable ring 203. A locking hole 204 is provided on one side of the inner wall of the movable ring 203. Limiting blocks 205 are fixedly provided on both sides of the inner wall of the fixed ring 201 and both sides of the inner wall of the movable ring 203. Limiting grooves 206 are provided on both sides of the outer walls of the two support columns 1, and the outer walls of the four limiting blocks 205 are respectively connected to... The inner walls of the four limiting slide grooves 206 are slidably connected. An installation hole 207 is provided at the upper edge of one side of the outer wall of the support column 1. A buckle 208 is inserted and connected to the inner wall of the installation hole 207. The inner wall of the fixing ring 201 is fixed to the outer wall of the support column 1. The limiting block 205 on its inner side cannot slide in the limiting slide groove 206 on the support column 1, while the movable ring 203 slides on the support column 1. Therefore, by the limiting block 205 sliding in the limiting slide groove 206, it can be limited and cannot rotate on the support column 1, so that the green screen mounting rod 202 and the movable ring 203 are not prone to motion interference.

[0022] In use, remove the pin 305 and move the two support columns 1 away from each other. As the two support columns 1 move away from each other, the movable ring 203, pulled by the green screen mounting rod 202, slides on the outer wall of one of the support columns 1. As the movable ring 203 slides, the green screen mounting rod 202 also rotates on the inner wall of the fixed ring 201 until it reaches a horizontal position. At this point, the green screen mounting rod 202 is horizontally positioned on top of the two support columns 1. The movable ring 203 is then driven by the green screen mounting rod 202 to slide to the top of the support column 1. The sliding of ring 203 causes its inner wall to press against the buckle 208 on the upper edge of the outer wall of one of the support columns 1, compressing the spring 209 and retracting it into the mounting hole 207. This continues until the buckle 208 aligns with the locking hole 204 on one side of the inner wall of the movable ring 203. The buckle 208 then engages with the locking hole 204, fixing the movable ring 203 to the outer wall of the support column 1. At this point, the green screen mounting rod 202 is also fixed, allowing the green screen background to be mounted on the green screen mounting rod 202 for unfolding and filming. After filming, press the movable ring 203 downwards forcefully. Since the end of the buckle 208 is hemispherical, as per the instruction manual... Figure 4 As shown, the buckle 208 is compressed in the mounting hole 207, compressing the spring 209, which in turn causes the movable ring 203 to disengage from the buckle 208, allowing it to slide down the support column 1. At the same time, the two support columns 1 move closer to each other, causing the green screen mounting rod 202 to rotate. As the two support columns 1 move closer to each other, the green screen mounting rod 202 also rotates continuously until the two support columns 1 are in a horizontal state, thus completing the storage. During the assembly and disassembly process, this quick-folding mechanism does not require the use of any fasteners for reinforcement. Workers can also fold it, improving assembly and disassembly efficiency and accelerating the film and television shooting schedule.

[0023] A spring 209 is fixedly provided on one side of the inner wall of the mounting hole 207, and one end of the spring 209 is fixedly connected to one side of the buckle 208. The inner wall of one end of the buckle 208 is inserted and connected to the inner wall of the buckle hole 204, and the outer wall of the buckle 208 is in contact with the inner wall of the mounting hole 207. When locking the movable ring 203, the stability of locking can be guaranteed, and it is not easy for the buckle 208 and the movable ring 203 to fall off without human intervention.

[0024] Furthermore, the fixing component 3 includes connecting rings 301 fixedly installed at the lower edge of the outer wall of the two support columns 1. Connecting strips 302 are fixedly provided on both sides of the two connecting rings 301, and the two connecting strips 302 on the two connecting rings 301 are respectively located on both sides of the two connecting rings 301.

[0025] The inner walls of the four connecting strips 302 are rotatably connected to connecting rods 303. One end of two connecting rods 303 is rotatably connected to one end of the other two connecting rods 303. When the four connecting rods 303 are rotatably connected by the connecting strips 302, they are located on both sides of the green screen mounting rod 202. Therefore, there is a large gap between the four connecting rods 303. When the support column 1 is folded, the upper green screen mounting rod 202 will pass directly through the gap between the four connecting rods 303 when it rotates vertically, without causing a collision.

[0026] Furthermore, each of the two connecting rods 303 has a connecting hole 304 at one end of its edge. A pin 305 is inserted into the inner wall of the two connecting holes 304. A triangular bracket 4 is fixedly installed at the bottom of each of the two support columns 1. When the folding mechanism is unfolded and the four connecting rods 303 are aligned horizontally, the connecting holes 304 on the two connecting rods 303 face vertically upward. The fixing component 3 can be fixed by inserting the pin 305 into the connecting hole 304, so that it supports and reinforces the folding mechanism at the bottom. This makes it more stable when building a green screen background and prevents it from tilting or collapsing due to the support of the triangular bracket 4.

[0027] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on its differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so they are described more simply; relevant parts can be referred to the descriptions of the method embodiments.

[0028] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A film-grade green screen background quick folding mechanism, comprising two support columns (1) and a folding and storage mechanism (2) installed on the upper ends of the two support columns (1) in an upward and downward distribution, and a fixing component (3). Its features are: The folding and storage mechanism (2) includes a fixed ring (201) fixed to the top of one of the support columns (1), a green screen mounting rod (202) rotatably connected to one side of the outer wall of the fixed ring (201), and a movable ring (203) slidably connected to the outer wall of the other support column (1). One end of the green screen mounting rod (202) is rotatably connected to one side of the outer wall of the movable ring (203). A locking hole (204) is provided on one side of the inner wall of the movable ring (203). 01) Limiting blocks (205) are fixedly provided on both sides of the inner wall and both sides of the inner wall of the movable ring (203). Limiting grooves (206) are opened on both sides of the outer wall of the two support columns (1). The outer walls of the four limiting blocks (205) are slidably connected to the inner walls of the four limiting grooves (206). An installation hole (207) is opened at the upper edge of one side of the outer wall of one of the support columns (1). A buckle (208) is inserted and connected to the inner wall of the installation hole (207).

2. The film-grade green screen background rapid folding mechanism according to claim 1, characterized in that: A spring (209) is fixedly provided on one side of the inner wall of the mounting hole (207), and one end of the spring (209) is fixedly connected to one side of the buckle (208). The inner wall of one end of the buckle (208) is inserted and connected to the inner wall of the buckle hole (204).

3. The film-grade green screen background rapid folding mechanism according to claim 1, characterized in that: The fixing component (3) includes connecting rings (301) fixedly installed at the lower edge of the outer wall of the two support columns (1), and connecting strips (302) are fixedly provided on both sides of the two connecting rings (301).

4. The film-grade green screen background rapid folding mechanism according to claim 3, characterized in that: The inner walls of the four connecting strips (302) are rotatably connected to connecting rods (303), and one end of two of the connecting rods (303) is rotatably connected to one end of the other two connecting rods (303).

5. The film-grade green screen background rapid folding mechanism according to claim 4, characterized in that: Each of the two connecting rods (303) has a connecting hole (304) at one end of its edge. The inner walls of the two connecting holes (304) are connected with pins (305). The bottoms of the two support columns (1) are fixedly installed with triangular brackets (4).

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