Projection device for film and television shooting

Abstract

The utility model relates to the technical field of movies and televisions, and discloses a projection device for movie and television shooting, which comprises a base, the upper part of the base is rotatably connected with a rotating column, the top of the base is fixedly connected with a support frame, the middle part of the support frame is rotatably connected with a rotating cylinder, and the top of the rotating cylinder is fixedly connected with a rotating frame. A first motor is installed at the top of the base, a rotating shaft of the first motor is fixedly connected with a first worm, a second motor is installed at the top of the base, and a rotating shaft of the second motor is fixedly connected with a second worm. A first motor rotates, a first worm rotates, a first gear rotates, a rotating column and a first bevel gear rotate, a second bevel gear rotates, a rotating shaft rotates, the first motor and a second motor rotate at the same time, a second gear rotates, and a rotating cylinder and a rotating frame rotate; the rotating shaft, the connecting frame and the projector on the mounting base rotate left and right along with the rotating frame.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of film and television technology, concretely is a projection device for film and television shooting. BACKGROUND

[0002] Film and television is with copy, tape, film, memory as carrier, with screen, screen projection as the purpose, thereby realizes the comprehensive appreciation of visual and auditory art form, is the comprehensive form of modern art, contains the film, TV series, program, animation and so on. Shooting, is with camera, video recorder to shoot the image of people, things. In film and television shooting, projection device is needed.

[0003] Such as China patent publication publication number CN215674460U, relate to the field of film and television technology, especially a projection device for film and television shooting, including box, the top of box is provided with projection support plate, the top of projection support plate is provided with sliding slot, the side wall of projection support plate is installed with positive and negative motor, the output of positive and negative motor extends to the inside of sliding slot and is fixedly connected with lead screw, the outside of lead screw is provided with nut, the beneficial effect lies in: through the setting sliding slot, positive and negative motor, lead screw, nut, groove, servo motor, projector, projector is installed at the top of servo motor output, then starts positive and negative motor and drives lead screw to rotate, lead screw drives nut to move horizontally and linearly, this is conducive to the movement of projector on horizontal position, then starts servo motor and drives projector to rotate, this is conducive to the circular motion of projector, in summary, it is favorable to automatically change the angle of projector.

[0004] After using the projection device for film and television shooting, it is found that the device can make the projector circular motion, but sometimes needs to tilt the projector upward or downward, and the device cannot make the projector rotate up and down, so the practicability is limited. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a projection device for film and television shooting to solve the problem that the projector cannot rotate up and down.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: A projection device for film and television shooting, including the base, the upper portion of base rotatory connection has the rotating column, the outer wall fixed connection of rotating column has first gear, the top fixed connection of rotating column has first bevel gear, the top fixed connection of base has support frame, the middle rotatory connection of support frame has rotating cylinder, the bottom fixed connection of rotating cylinder has second gear, the top fixed connection of rotating cylinder has rotating frame, the middle rotatory connection of rotating frame has the pivot, the outer wall fixed connection of pivot has second bevel gear, first bevel gear with second bevel gear engages, the top installation of base has first motor, the rotatory shaft fixed connection of first motor has first worm, first gear with first worm cooperates, the top installation of base has second motor, the rotatory shaft fixed connection of second motor has second worm, second gear with second worm cooperates.

[0007] Preferably, the top of the rotating shaft is fixedly connected with a connecting frame, and the top of the connecting frame is fixedly connected with a mounting seat.

[0008] Preferably, the middle of the second gear is provided with a through hole, and the diameter of the through hole is the same as the inner wall diameter of the rotating cylinder.

[0009] Preferably, the first worm is rotatably connected with the base, and the second worm is rotatably connected with the base.

[0010] Preferably, the rotating column cooperates with the rotating cylinder.

[0011] Preferably, the bottom of the base is fixedly provided with wheels.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] The first motor rotates, the first worm rotates, the first gear rotates, the rotating column and the first bevel gear rotate, the second bevel gear rotates, the rotating shaft rotates, the connecting frame and the mounting seat rotate the projector up and down, if the left and right angles of the projector are changed, the first motor and the second motor rotate at the same time, the second worm rotates, the second gear rotates, the rotating cylinder and the rotating frame rotate, the projector on the rotating shaft, the connecting frame and the mounting seat rotate left and right, and the projector can rotate up and down. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;

[0015] Figure 2 It is Figure 1 It is a local amplification structure schematic diagram of A in the middle;

[0016] Figure 3 Figure 1 is a schematic diagram of the separation structure of the rotating column and the rotating cylinder of the utility model;

[0017] Figure 4 Figure 1 is a schematic diagram of the separation structure of the rotating column and the rotating cylinder of the utility model;

[0018] In the figure: 1, base; 101, wheel; 2, support frame; 3, first motor; 301, first worm; 302, first gear; 303, rotating column; 304, first bevel gear; 4, second motor; 401, second worm; 402, second gear; 403, rotating cylinder; 404, rotating frame; 5, rotating shaft; 501, second bevel gear; 502, connecting frame; 503, mounting seat. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the utility model. The described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0020] Please refer to Figures 1-4The utility model provides a kind of technical scheme: a projection device for filming, including base 1, base 1 can move, the upper portion of base 1 is rotatably connected with rotating column 303, the outer wall of rotating column 303 is fixedly connected with first gear 302, the top of rotating column 303 is fixedly connected with first bevel gear 304, rotating column 303, first gear 302 and first bevel gear 304 are an entirety, rotate together, the top of base 1 is fixedly connected with support frame 2, the middle portion of support frame 2 is rotatably connected with rotating cylinder 403, rotating cylinder 403 can only rotate in support frame 2, cannot move up and down, the bottom of rotating cylinder 403 is fixedly connected with second gear 402, second gear 402 does not contact with first gear 302, the top of rotating cylinder 403 is fixedly connected with rotating frame 404, rotating cylinder 403, second gear 402 and rotating frame 404 are an entirety, rotate together, the middle portion of rotating frame 404 is rotatably connected with shaft 5, shaft 5 is placed horizontally, the outer wall of shaft 5 is fixedly connected with second bevel gear 501, first bevel gear 304 is engaged with second bevel gear 501, first bevel gear 304 rotates, second bevel gear 501 rotates along with it, shaft 5 rotates, the top of base 1 is installed with first motor 3, the rotating shaft of first motor 3 is fixedly connected with first worm 301, first gear 302 cooperates with first worm 301, first motor 3 rotates, first worm 301 rotates, will make first gear 302 rotate, the top of base 1 is installed with second motor 4, the rotating shaft of second motor 4 is fixedly connected with second worm 401, second gear 402 cooperates with second worm 401, second motor 4 rotates, second worm 401 rotates, will make second gear 402 rotate, when using, if want to change the up-down angle of projector, first motor 3 rotates, first worm 301 rotates, first gear 302 rotates, rotating column 303 and first bevel gear 304 rotate, second bevel gear 501 rotates, shaft 5 rotates, connecting frame 502 and mounting seat 503 rotate projector up and down, if want to change the left-right angle of projector, first motor 3 and second motor 4 rotate simultaneously, the same speed, second worm 401 rotates, second gear 402 rotates, rotating cylinder 403 and rotating frame 404 rotate, projector on shaft 5, connecting frame 502 and mounting seat 503 rotate along with rotating frame 404, because first motor 3 rotates at this time, so rotating column 303 and first bevel gear 304 rotate, but because second gear 402 also rotates along with rotating frame 404, so first bevel gear 304 and second gear 402 do not relatively rotate at this time, shaft 5 does not rotate, first gear 302 and second gear 402 external dimensions are same, first worm 301 and second worm 401 size are same, so first motor 3 and second motor 4 rotate simultaneously and the same speed, rotating column 303 is relatively stationary with rotating cylinder 403.

[0021] The top of the rotating shaft 5 is fixedly connected with a connecting frame 502, which serves as a connecting function, and the top of the connecting frame 502 is fixedly connected with a mounting seat 503, and the projector is mounted on the mounting seat 503, and the lens faces forward.

[0022] The middle part of the second gear 402 is provided with a through hole, the diameter of the through hole is same with the inner wall diameter of the rotating cylinder 403, and the rotating column 303 can pass through the second gear 402.

[0023] The first worm 301 is rotatably connected with the base 1, and the structure is more stable, and the second worm 401 is rotatably connected with the base 1, and the structure is more stable.

[0024] The rotating column 303 is matched with the rotating cylinder 403, and the rotating column 303 can rotate in the rotating cylinder 403.

[0025] The bottom of the base 1 is fixedly provided with wheels 101, and the wheels 101 are universal wheels, so that the base 1 can be moved randomly.

[0026] Working principle: when using, if the up-down angle of the projector is changed, the first motor 3 rotates, the first worm 301 rotates, the first gear 302 rotates, the rotating column 303 and the first bevel gear 304 rotate, the second bevel gear 501 rotates, the rotating shaft 5 rotates, the connecting frame 502 and the mounting seat 503 rotate the projector up and down, if the left-right angle of the projector is changed, the first motor 3 and the second motor 4 rotate at the same time, the rotating speed is same, the second worm 401 rotates, the second gear 402 rotates, the rotating cylinder 403 and the rotating frame 404 rotate, and the projector on the rotating shaft 5, the connecting frame 502 and the mounting seat 503 rotates left and right along with the rotating frame 404.

[0027] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes and modifications can be made to the embodiments without departing from the principles of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A projection device for filming a movie, comprising a base (1), characterized in that: The upper part of the base (1) is rotatably connected to a rotating column (303), the outer wall of the rotating column (303) is fixedly connected to a first gear (302), the top of the rotating column (303) is fixedly connected to a first bevel gear (304), the top of the base (1) is fixedly connected to a support frame (2), the middle part of the support frame (2) is rotatably connected to a rotating cylinder (403), the bottom of the rotating cylinder (403) is fixedly connected to a second gear (402), the top of the rotating cylinder (403) is fixedly connected to a rotating frame (404), the middle part of the rotating frame (404) is rotatably connected to a rotating shaft (5), and the rotating shaft (5) is fixedly connected to the rotating frame (404). The outer wall of the rotating shaft (5) is fixedly connected to a second bevel gear (501), the first bevel gear (304) is meshed with the second bevel gear (501), a first motor (3) is installed on the top of the base (1), the rotating shaft of the first motor (3) is fixedly connected to a first worm (301), the first gear (302) is matched with the first worm (301), a second motor (4) is installed on the top of the base (1), the rotating shaft of the second motor (4) is fixedly connected to a second worm (401), and the second gear (402) is matched with the second worm (401).

2. A projection device for filming a video according to claim 1, characterized in that: The top of the rotating shaft (5) is fixedly connected to a connecting frame (502), and the top of the connecting frame (502) is fixedly connected to a mounting seat (503).

3. The projection device for filming a video according to claim 1, characterized in that: A through hole is provided in the middle of the second gear (402), and the diameter of the through hole is the same as the diameter of the inner wall of the rotating cylinder (403).

4. The projection device for filming a video according to claim 1, wherein: The first worm (301) is rotatably connected to the base (1), and the second worm (401) is rotatably connected to the base (1).

5. The projection device for filming a video according to claim 1, characterized in that: The rotating column (303) cooperates with the rotating cylinder (403).

6. The projection device for filming a video according to claim 1, characterized in that: Wheels (101) are fixedly mounted on the bottom of the base (1).

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