Movie projection light calibration auxiliary device suitable for arc-shaped curtain

Abstract

The utility model relates to the technical field of arc-shaped curtains, in particular to a movie projection light calibration auxiliary device suitable for an arc-shaped curtain, which comprises a bottom frame, supporting plates, mounting plates and a fixing frame, the bottom frame is of an inverted U-shaped structure, the supporting plates are symmetrically mounted on the outer wall of the top end of the bottom frame, the mounting plates are mounted on the outer walls of the top ends of the two supporting plates, and the fixing frame is arranged on the mounting plates. A fixing frame is mounted on the outer wall of the top end, located in the center, of the mounting plate, an angle adjusting mechanism and a buffering mechanism are mounted on the upper portion of the bottom frame, and a limiting mechanism is mounted on the upper portion of the angle adjusting mechanism. According to the utility model, the driving motor drives the rotating column to rotate, so that the rotating column drives the placement block to incline, thereby adjusting the projection angle of the lens of the projection machine, assisting the lens of the projection machine to quickly calibrate a picture projected on the arc-shaped curtain, and reducing the calibration time.

Description

Technical Field

[0001] This utility model relates to the field of curved screen technology, and in particular to an auxiliary device for calibrating movie projection light suitable for curved screens. Background Technology

[0002] A curved screen is a curved projection screen designed to create a more immersive, wider, or more optically appropriate viewing experience. A curved screen cinema projection light calibration aid is a device that assists in calibrating the image projected onto the curved screen by the projector.

[0003] When using existing curved screen movie projection light calibration auxiliary devices, if the projector on the curved screen is misaligned due to installation deviation, causing the projection lens to be not centered on the screen, the projector needs to use functions such as correction and side projection, which degrade image quality, resulting in a worse projection image.

[0004] Therefore, to address the problem of deteriorated projection quality caused by the installation deviation of the aforementioned auxiliary device for calibrating movie projection light on curved screens, which results in the projection lens not being centered on the screen, this invention uses two electric push rods to extend and retract, thereby moving a movable block left and right. This movable block then moves a connecting block and a rotating column, which in turn moves a mounting block, which in turn moves the projector. This ensures that the projector lens is centered on the curved screen, eliminating the need for image correction and side projection functions that could degrade image quality, and allowing the projector to calibrate the image without affecting the projection quality. Utility Model Content

[0005] To overcome the problem that common curved screen movie projection light calibration auxiliary devices are prone to misalignment, resulting in the projection lens not being centered on the screen and thus deteriorating the projection effect.

[0006] The technical solution of this utility model is as follows: A movie projection light calibration auxiliary device suitable for curved screens, including a base frame, a support plate, a mounting plate, and a fixing frame. The base frame is an inverted "U" shaped structure. Support plates are symmetrically installed on the top outer wall of the base frame. Mounting plates are installed on the top outer walls of the two support plates. A fixing frame is installed on the top outer wall of the mounting plate located at the center position. An angle adjustment mechanism and a buffer mechanism are installed above the base frame. A limit mechanism is installed above the angle adjustment mechanism.

[0007] Preferably, the angle adjustment mechanism includes a support block, a connecting block, a movable block, an electric push rod, a rotating column, a drive motor, and a fixed block. The support block is slidably installed between the outer side walls of the two protruding ends of the base frame. The connecting block is installed on the top outer wall of the support block. A sliding groove for the movable block to be slidably installed is opened through the outer side wall of the support block. The top outer wall of the movable block is connected to the bottom outer wall of the connecting block. Electric push rods are symmetrically installed on the bottom outer wall of the support block. The output ends of the two electric push rods are respectively connected to the two outer side walls of the movable block.

[0008] Preferably, a rotating column is rotatably mounted on the inner side wall of the connecting block, a fixing block is mounted on the outer side wall of the connecting block, a drive motor is mounted on the top outer wall of the fixing block, and the output end of the drive motor passes through the connecting block and is connected to the rotating column.

[0009] Preferably, the limiting mechanism includes a mounting block, an electric telescopic rod, a telescopic plate, a trapezoidal plate, a clamping block, and a friction pad. The mounting block is installed on the top outer wall of the rotating column, and two electric telescopic rods are alternately installed on the bottom outer wall of the mounting block. The side outer wall of the mounting block is symmetrically provided with sliding grooves for the telescopic plates to slide on. The side outer walls of the two telescopic plates are each equipped with a trapezoidal plate, and the output ends of the two electric telescopic rods are respectively connected to the side outer walls of the two trapezoidal plates.

[0010] Preferably, clamping blocks are installed on the outer side walls of the two trapezoidal plates, and friction pads are installed on the outer side walls of the clamping blocks.

[0011] Preferably, the buffer mechanism includes a connecting plate, a damper, and a buffer spring. Two sets of connecting plates are symmetrically installed on the top outer wall of the base frame and the bottom outer wall of the support block, with two connecting plates in the same set.

[0012] Preferably, a damper and a buffer spring are installed between the two connecting plates, with the buffer spring sleeved on the outside of the damper.

[0013] The beneficial effects of this utility model are:

[0014] 1. With an angle adjustment mechanism, during use, two electric push rods first drive the movable block to move horizontally, which in turn drives the connecting block and rotating column to move horizontally, so that the projector lens is centered on the curved screen for easy adjustment. Then, the drive motor is turned on, which drives the rotating column to rotate, which in turn drives the mounting block to tilt, thereby adjusting the projection angle of the projector lens. This helps the projector lens to quickly calibrate the image projected on the curved screen, reducing calibration time.

[0015] 2. A limiting mechanism is provided. During use, the projector is first placed on the mounting block. Then, two electric telescopic mechanisms retract, causing the two trapezoidal blocks to move inward simultaneously. This moves the clamping block inward, allowing the friction pad to come into contact with the projector, thus clamping and fixing the projector. This mechanism can accommodate projectors of different sizes. Furthermore, the friction pad increases the friction between the projector and the clamping block, making the projector more stable and preventing damage to the projector due to excessive clamping force. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of the present invention.

[0017] Figure 2 The diagram shown is a three-dimensional structural diagram of the electric push rod and movable block of this utility model.

[0018] Figure 3 This utility model is shown. Figure 2 Enlarged 3D structural diagram at point A;

[0019] Figure 4 The diagram shown is a three-dimensional structural diagram of the clamping block and friction pad of this utility model.

[0020] Figure 5 The diagram shown is a three-dimensional structural diagram of the damper and buffer spring installation of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Base frame; 2. Support plate; 3. Mounting plate; 4. Fixing frame; 5. Angle adjustment mechanism; 51. Support block; 52. Connecting block; 53. Movable block; 54. Electric push rod; 55. Rotating column; 56. Drive motor; 57. Fixing block; 6. Limiting mechanism; 61. Placement block; 62. Electric telescopic rod; 63. Telescopic plate; 64. Trapezoidal plate; 65. Clamping block; 66. Friction pad; 7. Buffer mechanism; 71. Connecting plate; 72. Damper; 73. Buffer spring. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1-5This utility model provides a technical solution: an auxiliary device for calibrating movie projection light suitable for curved screens, including a base frame 1, a support plate 2, a mounting plate 3, and a fixing frame 4. The base frame 1 has an inverted "U" shaped structure. The support plates 2 are symmetrically installed on the outer top wall of the base frame 1. The mounting plates 3 are installed on the outer top walls of the two support plates 2. The fixing frame 4 is installed on the outer top wall of the mounting plate 3 located at the center position. An angle adjustment mechanism 5 and a buffer mechanism 7 are installed above the base frame 1. A limit mechanism 6 is installed above the angle adjustment mechanism 5.

[0024] The angle adjustment mechanism 5 includes a support block 51, a connecting block 52, a movable block 53, an electric push rod 54, a rotating column 55, a drive motor 56, and a fixed block 57. The support block 51 is slidably installed between the outer side walls of the two protruding ends of the base frame 1. The connecting block 52 is installed on the top outer wall of the support block 51. A sliding groove for the movable block 53 to be slidably installed is opened through the outer side wall of the support block 51. The top outer wall of the movable block 53 is connected to the bottom outer wall of the connecting block 52. The electric push rods 54 are symmetrically installed on the bottom outer wall of the support block 51. The output ends of the two electric push rods 54 are respectively connected to the outer side walls of the movable block 53.

[0025] A rotating column 55 is rotatably mounted on the inner side wall of the connecting block 52, a fixing block 57 is mounted on the outer side wall of the connecting block 52, and a drive motor 56 is mounted on the top outer wall of the fixing block 57. The output end of the drive motor 56 passes through the connecting block 52 and is connected to the rotating column 55.

[0026] The limiting mechanism 6 includes a mounting block 61, an electric telescopic rod 62, a telescopic plate 63, a trapezoidal plate 64, a clamping block 65, and a friction pad 66. The mounting block 61 is installed on the top outer wall of the rotating column 55. Two electric telescopic rods 62 are installed alternately on the bottom outer wall of the mounting block 61. The side outer wall of the mounting block 61 is symmetrically provided with sliding grooves for the telescopic plate 63 to slide. The side outer walls of the two telescopic plates 63 are each equipped with a trapezoidal plate 64. The output ends of the two electric telescopic rods 62 are respectively connected to the side outer walls of the two trapezoidal plates 64.

[0027] Clamping blocks 65 are installed on the outer side walls of the two trapezoidal plates 64, and friction pads 66 are installed on the outer side walls of the clamping blocks 65.

[0028] The buffer mechanism 7 includes a connecting plate 71, a damper 72, and a buffer spring 73. Two sets of connecting plates 71 are symmetrically installed on the top outer wall of the base frame 1 and the bottom outer wall of the support block 51, and there are two connecting plates 71 in the same set.

[0029] A damper 72 and a buffer spring 73 are installed between the two connecting plates 71, with the buffer spring 73 sleeved on the outside of the damper 72.

[0030] Working principle: According to Figures 1 to 3As shown, the device is first fixed in the center of the curved screen using the mounting bracket 4. Then, the projector is placed on the mounting block 61 and secured. Two electric push rods 54 are then activated, extending one side and retracting the other, pulling the movable block 53 to move left and right. This causes the movable block 53 to move the connecting block 52 and the rotating column 55, which in turn moves the mounting block 61. This positions the projector's lens in the center of the curved screen, preventing misalignment that could affect image calibration and projection quality. When the lens angle needs adjustment, the drive motor 56 is activated, engaging its self-locking function. This causes the drive motor 56 to rotate the rotating column 55, tilting the mounting block 61 to adjust the lens angle. This allows the device to quickly calibrate the image, assisting the projector in achieving rapid image calibration.

[0031] according to Figures 4 to 5 The mounting bracket 4 is fixed to the installation position using bolts to install the device. Then, the projector is placed on the surface of the mounting block 61. Subsequently, the two electric telescopic rods 62 retract, causing the trapezoidal plates 64 on both sides to move inward simultaneously. This pushes the telescopic plate 63 into the interior of the mounting block 61 through the trapezoidal plates 64, causing the clamping blocks 65 on both sides to move inward simultaneously. This pushes the friction pad 66 to fit against the projector and continues to push it towards the center. In this way, the friction pad 66 increases the friction between the clamping blocks 65 and the projector, thus fixing the projector. Then, the position of the projector and the projected image are calibrated. When the projector vibrates during the debugging process, the buffer spring 73 is used to buffer the vibration. At the same time, the damper 72 reduces the amplitude of the vibration, increases the stability of the projector, and avoids image distortion caused by vibration.

[0032] It should be noted that the aforementioned drive motor 56, electric push rod 54 and electric telescopic rod 62 can be powered by existing operating techniques, whether using power supply components or external wires. These are all existing conventional operating techniques and will not be described in detail here.

[0033] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A light calibration auxiliary device for movie projection on a curved screen, comprising a base frame (1), a support plate (2), a mounting plate (3), and a fixing frame (4), characterized in that: The base frame (1) is an inverted "U" shaped structure. Support plates (2) are symmetrically installed on the top outer wall of the base frame (1). Mounting plates (3) are installed on the top outer walls of the two support plates (2). A fixing frame (4) is installed on the top outer wall of the mounting plate (3) at the center position. An angle adjustment mechanism (5) and a buffer mechanism (7) are installed above the base frame (1). A limit mechanism (6) is installed above the angle adjustment mechanism (5).

2. The auxiliary device for calibrating movie projection light on a curved screen according to claim 1, characterized in that: The angle adjustment mechanism (5) includes a support block (51), a connecting block (52), a movable block (53), an electric push rod (54), a rotating column (55), a drive motor (56), and a fixed block (57). The support block (51) is slidably installed between the outer side walls of the two protruding ends of the base frame (1). The connecting block (52) is installed on the outer top wall of the support block (51). The outer side wall of the support block (51) is provided with a sliding groove for the movable block (53) to be slidably installed. The outer top wall of the movable block (53) is connected to the outer bottom wall of the connecting block (52). The outer bottom wall of the support block (51) is symmetrically installed with electric push rods (54). The output ends of the two electric push rods (54) are respectively connected to the outer side walls of the movable block (53).

3. The auxiliary device for calibrating movie projection light on a curved screen according to claim 2, characterized in that: A rotating column (55) is rotatably mounted on the inner side wall of the connecting block (52), a fixing block (57) is mounted on the outer side wall of the connecting block (52), and a drive motor (56) is mounted on the outer top wall of the fixing block (57). The output end of the drive motor (56) passes through the connecting block (52) and is connected to the rotating column (55).

4. The auxiliary device for calibrating movie projection light on a curved screen according to claim 2, characterized in that: The limiting mechanism (6) includes a mounting block (61), an electric telescopic rod (62), a telescopic plate (63), a trapezoidal plate (64), a clamping block (65), and a friction pad (66). The mounting block (61) is installed on the top outer wall of the rotating column (55). Two electric telescopic rods (62) are installed alternately on the bottom outer wall of the mounting block (61). The side outer wall of the mounting block (61) is symmetrically provided with sliding grooves for the telescopic plate (63) to slide. The side outer walls of the two telescopic plates (63) are each equipped with a trapezoidal plate (64). The output ends of the two electric telescopic rods (62) are respectively connected to the side outer walls of the two trapezoidal plates (64).

5. The auxiliary device for calibrating movie projection light on a curved screen according to claim 4, characterized in that: Clamping blocks (65) are installed on the outer side walls of the two trapezoidal plates (64), and friction pads (66) are installed on the outer side walls of the clamping blocks (65).

6. The auxiliary device for calibrating movie projection light on a curved screen according to claim 2, characterized in that: The buffer mechanism (7) includes a connecting plate (71), a damper (72) and a buffer spring (73). Two sets of connecting plates (71) are symmetrically installed on the top outer wall of the base frame (1) and the bottom outer wall of the support block (51). There are two sets of connecting plates (71) in the same set.

7. The auxiliary device for calibrating movie projection light on a curved screen according to claim 6, characterized in that: A damper (72) and a buffer spring (73) are installed between the two connecting plates (71), with the buffer spring (73) sleeved on the outside of the damper (72).

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