A broadcast television shooting auxiliary device

Abstract

The utility model relates to the technical field of broadcasting and television shooting, specifically relates to a broadcasting and television shooting auxiliary device, including angle adjusting mechanism, angle adjusting subassembly includes arc bracket and semicircle turntable, arc bracket includes arc plate, and semicircle turntable rotates and is established in arc plate, and is equipped with self -locking type adjusting spare between arc plate and semicircle turntable, and arc bracket is equipped with complex lock spare, and self -locking type adjusting spare adopts the meshing structure of semicircle worm wheel and worm, utilizes the mechanical characteristic that the lead angle of worm is less than equivalent friction angle, makes semicircle turntable realize self -locking immediately after angle adjusting stops, and can complete preliminary locking without extra operation, thoroughly solve the problem that the camera is slightly deviated due to self -weight after adjusting in prior art device, on the basis, complex lock spare passes through the thread cooperation of no.

Description

Technical Field

[0001] This utility model relates to the field of broadcast and television shooting technology, and specifically to a broadcast and television shooting auxiliary device. Background Technology

[0002] In broadcast television shooting, to obtain multi-angle, high-quality footage, it is often necessary to use shooting aids to flexibly adjust the camera angle. The core requirements of such devices are the ease of angle adjustment and the structural stability after adjustment. Currently available broadcast television shooting aids have gradually revealed many technical defects in practical applications, making it difficult to meet the stringent reliability requirements of professional shooting. The specific defects are as follows: Firstly, most devices rely on a single locking structure to fix the angle, and this structure often lacks instant self-locking capability. After the angle adjustment is completed, the locking component needs to be operated to fix it. During this process, the camera is prone to slight rotation due to its own weight, causing the shooting angle to shift. Even if some devices have a preliminary locking function, their locking force is insufficient. When the camera's weight is borne for a long time or when subjected to slight external interference, the locking structure is prone to loosening, causing the camera angle to drift continuously, directly affecting the stability of the shooting footage and increasing the difficulty of post-editing. Secondly, some devices lack effective limiting and guiding structures, making it easy for the turntable to deviate or jam during rotation within the bracket. In severe cases, this can even lead to the safety hazard of the turntable detaching from the bracket. Even if a few devices are equipped with limiting structures, their structural design is relatively simple, often using planar contact limiting, which cannot provide comprehensive constraint on the turntable. When the turntable is subjected to a large load, the limiting structure is prone to deformation due to stress concentration, further reducing the structural stability and service life of the device. Utility Model Content

[0003] The purpose of this invention is to provide an auxiliary device for broadcast and television shooting.

[0004] To achieve this objective, the present invention adopts the following technical solution: A broadcast television shooting auxiliary device includes an angle adjustment mechanism. The angle adjustment component includes an arc-shaped bracket and a semi-circular turntable. The arc-shaped bracket includes an arc-shaped plate with an upward-facing concave cavity. The semi-circular turntable is rotatably disposed within the arc-shaped plate, and the axis of the semi-circular turntable is horizontal. A self-locking adjustment component is provided between the arc-shaped plate and the semi-circular turntable. The self-locking adjustment component is used to drive the semi-circular turntable to rotate around its axis and lock it immediately after stopping. The arc-shaped bracket is provided with a double-locking component for cooperating with the self-locking adjustment component to double-lock the semi-circular turntable.

[0005] To demonstrate how the semicircular turntable rotates within the arc-shaped plate, two symmetrically arranged arc-shaped limiting strips are fixed to the inner wall of the arc-shaped plate. Each arc-shaped limiting strip has a T-shaped cross-section. The arc-shaped outer wall of the semicircular turntable fits against the inner wall of the arc-shaped plate, and two arc-shaped limiting grooves are respectively opened inward on the arc-shaped outer wall of the semicircular turntable to cooperate with the arc-shaped limiting strips.

[0006] To demonstrate the specific structure of the self-locking adjustment component, the self-locking adjustment component includes a semi-circular worm gear and a worm. The semi-circular worm gear is fixed in the middle of the semi-circular turntable and the two are coaxially arranged. The worm is arranged horizontally and is rotatably connected to the arc plate. The semi-circular worm gear meshes with the worm.

[0007] To prevent the semi-circular worm gear from colliding with the arc-shaped plate, the arc-shaped plate is formed with an outwardly protruding part at the part corresponding to the semi-circular worm gear, and the protruding part is provided with an arc-shaped groove for avoiding the semi-circular worm gear.

[0008] To demonstrate how the worm gear rotates in connection with the arc-shaped plate, the outer wall of the protrusion is formed with a cylindrical shell coaxial with the worm gear, and the worm gear is located inside the cylindrical shell. Two symmetrically arranged bearings are embedded in the cylindrical shell, and both ends of the worm gear are connected to the two bearings respectively. One end of the cylindrical shell is an open structure with a sealing ring on it. The other end of the cylindrical shell is formed with a limiting ring. The axial displacement of the worm gear is restricted by the sealing ring and the limiting ring. One end of the worm gear passes through the sealing ring and is coaxially fixed to a No. 1 rotating handle.

[0009] To demonstrate the specific structure of the arc-shaped bracket, the arc-shaped bracket also includes a support base, and the arc-shaped plate is connected to the support base through several vertically arranged connecting columns.

[0010] To demonstrate the specific structure of the locking component, the locking component includes a vertical plate and a second rotating handle. The vertical plate is fixedly connected to the support base. A rotating pin is coaxially formed on one side of the semi-circular turntable. The rotating pin passes through the upper end of the vertical plate, and the outer end of the rotating pin is provided with a threaded portion. The second rotating handle is threadedly engaged with the threaded portion of the rotating pin.

[0011] To prevent the camera lens from colliding with the curved plate when adjusting the angle, one end of the curved plate is a broken end and the other end is a long end, and the two ends of each of the curved limiting strips are flush with the broken end and the long end of the curved plate, respectively.

[0012] The beneficial effects of this utility model are: Firstly, the self-locking adjustment mechanism employs a semi-circular worm gear and worm meshing structure. Utilizing the mechanical characteristic that the worm's lead angle is less than the equivalent friction angle, the semi-circular turntable immediately self-locks after angle adjustment stops, achieving initial locking without additional operation. This completely solves the problem of slight camera misalignment due to its own weight after adjustment in existing devices. Furthermore, the secondary locking mechanism, through the threaded engagement of the second rotating handle and the rotating pin, rigidly presses the semi-circular turntable against the vertical plate, further restricting the rotation of the rotating pin and forming a secondary lock. This dual locking mechanism not only avoids the risk of loosening after long-term load-bearing of a single locking structure but also resists external interference such as vibration and minor collisions, effectively preventing camera angle drift, significantly improving the stability of the captured footage, and reducing post-editing correction costs. Secondly, this utility model features a T-shaped arc-shaped limiting strip on the inner wall of the arc-shaped plate, which, together with the arc-shaped limiting groove on the outer wall of the semi-circular turntable, forms an embedded guide structure. The fit between the T-shaped cross-section limiting strip and the limiting groove provides precise rotation guidance for the semi-circular turntable, preventing offset and jamming during rotation. It also prevents the semi-circular turntable from detaching from the arc-shaped plate through axial constraint, solving the problems of stress concentration and easy deformation in existing planar contact limiting structures. This ensures structural stability when bearing cameras of different weights, extends the service life of the device, and improves safety during use. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments of this utility model will be briefly introduced below.

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ; Figure 3 This is a top view of the present invention; Figure 4 for Figure 3 Sectional view along line AA; Figure 5 for Figure 3 Sectional view along line BB; Figure 6 An exploded view of the three-dimensional structure of the semi-circular turntable and the curved plate; Figure 7 This is an exploded view of the three-dimensional structure of the worm gear and the cylindrical shell.

[0015] In the diagram: 1. Semicircular turntable; 2. Arc-shaped plate; 3. Arc-shaped limiting strip; 4. Arc-shaped limiting groove; 5. Semicircular worm gear; 6. Worm; 7. Protrusion; 8. Arc-shaped groove; 9. Columnar shell; 10. Bearing; 11. Sealing ring; 12. Limiting ring; 13. No. 1 rotating handle; 14. Support base; 15. Connecting column; 16. Vertical plate; 17. No. 2 rotating handle; 18. Rotating pin; 19. Broken end; 20. Long end. Detailed Implementation

[0016] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0017] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product.

[0018] refer to Figure 1 The broadcast television shooting auxiliary device shown includes an angle adjustment mechanism. The angle adjustment component includes an arc-shaped bracket and a semi-circular turntable 1. The arc-shaped bracket includes an arc-shaped plate 2 with the concave cavity facing upward. The semi-circular turntable 1 is rotatably disposed within the arc-shaped plate 2, and the axis of the semi-circular turntable 1 is horizontal. A self-locking adjustment component is provided between the arc-shaped plate 2 and the semi-circular turntable 1. The self-locking adjustment component is used to drive the semi-circular turntable 1 to rotate around its axis and lock it immediately after stopping. The arc-shaped bracket is provided with a double-locking component for cooperating with the self-locking adjustment component to double-lock the semi-circular turntable 1.

[0019] In actual use, the camera is fixed to the top of the semi-circular turntable 1. After the camera is installed, the semi-circular turntable 1 is driven to rotate by the self-locking adjustment component to adjust the shooting angle of the camera. When the shooting angle of the camera is adjusted, the semi-circular turntable 1 stops rotating and the self-locking adjustment component will lock it immediately. At the same time, the semi-circular turntable 1 is double-locked by the double-locking component to ensure that the semi-circular turntable 1 will not rotate on its own due to the weight of the camera, thereby improving the stability of the camera shooting.

[0020] refer to Figure 6 As shown, the inner wall of the arc plate 2 is fixed with two symmetrically arranged arc-shaped limiting strips 3. The cross-section of each arc-shaped limiting strip 3 is T-shaped. The arc-shaped outer wall of the semi-circular turntable 1 is in contact with the inner wall of the arc plate 2, and the arc-shaped outer wall of the semi-circular turntable 1 has two arc-shaped limiting grooves 4 that respectively cooperate with the arc-shaped limiting strips 3.

[0021] Each arc-shaped limiting strip 3 is embedded in the corresponding arc-shaped limiting groove 4. The semi-circular turntable 1 rotates within the arc-shaped plate 2 through the cooperation of the arc-shaped limiting strip 3 and the arc-shaped limiting groove 4. The cross-section of the arc-shaped limiting strip 3 is T-shaped to prevent the semi-circular turntable 1 from detaching from the arc-shaped plate 2.

[0022] refer to Figure 4 and Figure 5 As shown, the self-locking adjusting component includes a semi-circular worm gear 5 and a worm 6. The semi-circular worm gear 5 is fixed in the middle of the semi-circular turntable 1 and the two are coaxially arranged. The worm 6 is horizontally arranged and rotatably connected to the arc plate 2. The semi-circular worm gear 5 and the worm 6 mesh with each other.

[0023] When it is necessary to adjust the shooting angle of the camera, the worm 6 is rotated. The worm 6 will drive the entire semi-circular turntable 1 to rotate through the semi-circular worm wheel 5. During the processing, the lead angle of the worm 6 is made smaller than the equivalent friction angle, so that the semi-circular worm wheel 5 cannot drive the worm 6 to rotate. Thus, the semi-circular turntable 1 is locked by the cooperation of the semi-circular worm wheel 5 and the worm 6.

[0024] refer to Figure 1 As shown, the part of the arc plate 2 corresponding to the semi-circular worm gear 5 is formed with an outwardly protruding protrusion 7, and the protrusion 7 is provided with an arc-shaped groove 8 for avoiding the semi-circular worm gear 5.

[0025] When the semicircular worm gear 5 is connected to the semicircular turntable 1, the toothed part of the semicircular worm gear 5 will protrude from the semicircular turntable 1. Since the outer wall of the semicircular turntable 1 is in contact with the inner wall of the arc plate 2, the toothed part of the semicircular worm gear 5 will collide with the arc plate 2. In order to make the arc plate 2 avoid the semicircular worm gear 5, a protrusion 7 is processed on the part corresponding to the semicircular worm gear 5. An arc groove 8 is opened in the protrusion 7, and finally the semicircular worm gear 5 is avoided by the arc groove 8.

[0026] refer to Figure 1 , Figure 4 and Figure 7 As shown, the outer wall of the protrusion 7 is formed with a columnar shell 9 coaxial with the worm 6, and the worm 6 is located inside the columnar shell 9. Two symmetrically arranged bearings 10 are embedded in the columnar shell 9. The two ends of the worm 6 are respectively connected to the two bearings 10. One end of the columnar shell 9 is an open structure and is provided with a sealing ring 11. The other end of the columnar shell 9 is formed with a limiting ring 12. The axial displacement of the worm 6 is restricted by the sealing ring 11 and the limiting ring 12. One end of the worm 6 passes through the sealing ring 11 and is coaxially fixed to a rotating handle 13.

[0027] When machining the worm 6, both ends are machined into a stepped shape. When installing the worm 6, first, two bearings 10 are respectively fitted onto the two stepped parts of the worm 6. The stepped parts restrict the displacement of the bearings 10. After the bearings 10 are fitted, the entire worm 6 is inserted into the opening at one end of the cylindrical shell 9 until one of the bearings 10 abuts against the limiting ring 12. Then, the sealing ring 11 is fixed to the opening of the cylindrical shell 9. Finally, the axial displacement of the worm 6 is restricted by the cooperation between the sealing ring 11 and the limiting ring 12.

[0028] refer to Figure 1 As shown, the arc-shaped bracket also includes a support base 14, and the arc-shaped plate 2 is connected to the support base 14 through several vertically arranged connecting columns 15.

[0029] The connecting column 15 is used to connect the arc plate 2 to the support base 14. In actual use, the support base 14 can be installed on the camera bracket so that the camera installed on the semi-circular turntable 1 has a normal shooting height.

[0030] refer to Figure 1 As shown, the locking component includes a vertical plate 16 and a second rotating handle 17. The vertical plate 16 is fixedly connected to the support base 14. A rotating pin 18 is coaxially formed on one side of the semi-circular turntable 1. The rotating pin 18 passes through the upper end of the vertical plate 16, and the outer end of the rotating pin 18 is provided with a threaded part. The second rotating handle 17 is threadedly engaged with the threaded part of the rotating pin 18.

[0031] By rotating the second handle 17 to make it abut against the upper end of the vertical plate 16, the rotation of the pivot pin 18 is restricted, thereby achieving a secondary locking of the semi-circular turntable 1. When it is necessary to unlock the semi-circular turntable 1, the second handle 17 is rotated outward to separate it from the vertical plate 16, and finally the pivot pin 18 is released to a free state.

[0032] refer to Figure 1 , Figure 2 and Figure 4 As shown, one end of the arc plate 2 is the broken end 19, and the other end is the long end 20. The two ends of each arc-shaped limiting strip 3 are flush with the broken end 19 and the long end 20 of the arc plate 2, respectively.

[0033] When installing a camera onto the semi-circular turntable 1, the camera's outward-protruding lens is aligned with the broken end 19 of the arc plate 2. This is used to adjust the camera's angle, and the broken end 19 of the arc plate 2 prevents the camera's lens from colliding with the arc plate 2.

[0034] This device uses an angle adjustment mechanism as its core to achieve flexible adjustment and stable locking of the camera's shooting angle. The specific principle is as follows: During installation, the camera should be positioned facing the broken end 19 of the arc plate 2 to avoid collision with the arc plate 2 when adjusting the angle. The semi-circular turntable 1 is pre-installed by fitting its own arc-shaped outer wall with the inner wall of the arc plate 2. The arc-shaped limiting strip 3 is embedded in the arc-shaped limiting groove 4, which both guides the rotation of the semi-circular turntable 1 and prevents the semi-circular turntable 1 from detaching from the arc plate 2. Rotating the first handle 13 drives the worm gear 6 to rotate, and the semi-circular worm wheel 5 meshing with the worm gear 6 drives the semi-circular turntable 1 to rotate around its horizontal axis, thereby adjusting the camera angle. The arc-shaped groove 8 in the protrusion 7 provides the semi-circular worm wheel 5 with room to move, avoiding collisions during rotation. After adjustment, because the lead angle of the worm gear 6 is less than the equivalent friction angle, the semi-circular worm wheel 5 cannot drive the worm gear 6 in the reverse direction, thus achieving instant self-locking of the semi-circular turntable 1. At the same time, rotate the second rotating handle 17 to make it press against the upper end of the vertical plate 16. By limiting the rotation of the rotating pin 18, the semi-circular turntable 1 is locked a second time, completely preventing the semi-circular turntable 1 from rotating on its own due to the weight of the camera, thus ensuring the stability of shooting.

[0035] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A broadcast television shooting auxiliary device, characterized in that, The device includes an angle adjustment mechanism, which includes an arc-shaped bracket and a semi-circular turntable (1). The arc-shaped bracket includes an arc-shaped plate (2) with the cavity facing upward. The semi-circular turntable (1) is rotatably disposed within the arc-shaped plate (2), and the axis of the semi-circular turntable (1) is horizontal. A self-locking adjustment element is provided between the arc-shaped plate (2) and the semi-circular turntable (1). The self-locking adjustment element is used to drive the semi-circular turntable (1) to rotate around its axis and lock it immediately after stopping. The arc-shaped bracket is provided with a double-locking element for cooperating with the self-locking adjustment element to double-lock the semi-circular turntable (1).

2. The broadcast television shooting auxiliary device according to claim 1, characterized in that, The inner wall of the arc plate (2) is fixed with two symmetrically arranged arc-shaped limiting strips (3). The cross-section of each arc-shaped limiting strip (3) is T-shaped. The arc-shaped outer wall of the semi-circular turntable (1) fits against the inner wall of the arc plate (2), and the arc-shaped outer wall of the semi-circular turntable (1) has two arc-shaped limiting grooves (4) that respectively cooperate with the arc-shaped limiting strips (3).

3. The broadcast television shooting auxiliary device according to claim 1, characterized in that, The self-locking adjusting component includes a semi-circular worm wheel (5) and a worm (6). The semi-circular worm wheel (5) is fixed in the middle of the semi-circular turntable (1) and the two are coaxially arranged. The worm (6) is arranged horizontally and is rotatably connected to the arc plate (2). The semi-circular worm wheel (5) meshes with the worm (6).

4. The broadcast television shooting auxiliary device according to claim 3, characterized in that, The arc plate (2) is formed with an outward protrusion (7) at the part corresponding to the semi-circular worm gear (5), and the protrusion (7) is provided with an arc-shaped groove (8) for avoiding the semi-circular worm gear (5).

5. The broadcast television shooting auxiliary device according to claim 4, characterized in that, The outer wall of the protrusion (7) is formed with a columnar shell (9) coaxial with the worm (6), and the worm (6) is located inside the columnar shell (9). Two symmetrically arranged bearings (10) are embedded in the columnar shell (9). The two ends of the worm (6) are connected to the two bearings (10) respectively. One end of the columnar shell (9) is an open structure and is provided with a sealing ring (11). The other end of the columnar shell (9) is formed with a limiting ring (12). The axial displacement of the worm (6) is restricted by the sealing ring (11) and the limiting ring (12). One end of the worm (6) passes through the sealing ring (11) and is coaxially fixed to a rotating handle (13).

6. The broadcast television shooting auxiliary device according to claim 1, characterized in that, The arc-shaped bracket also includes a support base (14), and the arc-shaped plate (2) is connected to the support base (14) through several vertically arranged connecting columns (15).

7. A broadcast television shooting auxiliary device according to claim 6, characterized in that, The locking component includes a vertical plate (16) and a second rotating handle (17). The vertical plate (16) is fixedly connected to the support base (14). A rotating pin (18) is coaxially formed on one side of the semi-circular turntable (1). The rotating pin (18) passes through the upper end of the vertical plate (16), and the outer end of the rotating pin (18) is provided with a threaded part. The second rotating handle (17) is threadedly engaged with the threaded part of the rotating pin (18).

8. The broadcast television shooting auxiliary device according to claim 2, characterized in that, One end of the arc plate (2) is a broken end (19) and the other end is a long end (20). The two ends of each arc-shaped limiting strip (3) are flush with the broken end (19) and the long end (20) of the arc plate (2), respectively.

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