A mounting bracket for broadcast audio equipment

Abstract

This utility model belongs to the field of installation technology, and particularly relates to a mounting bracket for broadcast speakers, including a worm gear and a worm. The worm gear transmission mechanism enables self-locking adjustment of the speaker angle. The hexagonal groove at the lower end of the turntable cooperates with a segmented extension rod to achieve remote operation from the ground. A protective shell ensures transmission stability, an observation window and pointer provide precise angle indication, and anti-slip protrusions and a shield enhance connection stability and dust and water resistance. Compared with existing technologies, this utility model allows operators to remotely operate the speaker from the ground via the extension rod, completely avoiding the dangers of working at heights and greatly improving the safety and convenience of the adjustment process.

Description

Technical Field

[0001] This utility model relates to the field of installation technology, and more specifically, to a mounting bracket for broadcast audio equipment. Background Technology

[0002] Outdoor loudspeakers are public address systems used outdoors, primarily for broadcasting audio information such as announcements, educational materials, and conference announcements.

[0003] For example, the broadcast monitoring and adjustment mechanism disclosed in patent announcement number CN221784320U achieves flexible adjustment of the loudspeaker angle through the coordinated action of the adjustment mechanism and the snap-fit ​​mechanism. In the adjustment mechanism, an arc-shaped strip is fixed to the mounting bracket, and its internal sliding connecting rod cooperates with a second spring. By pulling the connecting rod to compress the second spring, the snap-fit ​​rod disengages from the snap-fit ​​hole of the bearing rod, allowing the bearing rod to be rotated to adjust the horizontal angle of the loudspeaker body. In the snap-fit ​​mechanism, the bearing block is rotatably connected to the snap ring through a rotating hole. The snap-fit ​​rod is snapped into the snap ring under the action of the first spring. Rotating the knob can drive the snap ring and the loudspeaker body to rotate vertically, with the first spring providing a buffer limit. Multi-directional angle adjustment is achieved through mechanical snap-fit ​​and spring reset, which is simple to operate and securely fixed, effectively improving the installation adaptability of broadcast equipment.

[0004] In the above-mentioned angle adjustment function, the mechanism usually relies on a simple mechanical method of spring-loaded latches engaging with fixing holes. Whether it is horizontal rotation adjustment or vertical pitch angle adjustment, the operator must manually complete a series of complex actions: first, the operator must overcome the spring's restoring force to pull the locking lever outward, disengaging it from the fixing hole; then, while keeping the lever disengaged, the operator must rotate the horn to the desired angle based on experience and visual estimation; finally, the operator must precisely align the lever with the new locking hole position and release it, relying on spring force to achieve locking.

[0005] This operating mode has significant drawbacks in practical applications, especially in scenarios where the installation base is located at heights such as light poles or building exteriors. Operators often need to work at heights, maintaining their balance while performing delicate operations with both hands, which not only greatly increases the difficulty and safety risks, but also makes the adjustment process time-consuming, laborious, and inefficient. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a mounting bracket for broadcast speakers that can realize remote, convenient and efficient angle adjustment structure.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A mounting bracket for a public address system includes a speaker body. A mounting ring is provided on one side of the speaker body, and the mounting ring is fixedly connected to the speaker body. An angle adjustment device is connected to the mounting ring, and a clamp for connecting to a utility pole is provided on one side of the angle adjustment device. The angle adjustment device includes a connecting frame, a connecting rod, a worm gear, and a worm. The connecting rod passes through the mounting ring and is fixedly connected to the mounting ring. The worm gear and the worm are covered with a housing. The connecting rod passes through the connecting frame at both ends and is fixed by nuts, thus rotatably connecting the connecting rod to the connecting frame. The worm gear is fixedly connected to the end of the connecting rod on one side of the connecting frame. The worm is placed on one side of the worm gear and meshes with the worm gear. A turntable is provided below the worm, and an extension rod is detachably connected to the turntable.

[0008] The present invention is further configured such that: a hexagonal groove is provided on the lower end face of the turntable, and a snap-fit ​​block is provided at the end of the extension rod, and the snap-fit ​​block snaps into the hexagonal groove.

[0009] The present invention is further configured such that: both the upper and lower end faces of the housing are provided with rotating holes for the two ends of the worm to pass through; the inner wall of the rotating hole is provided with a rotating shaft; the outer wall of the rotating shaft is fixedly connected to the inner wall of the rotating hole; and the inner wall of the rotating shaft is fixedly connected to the outer peripheral wall of the worm.

[0010] The present invention is further configured such that: the extension rod includes several rods, each rod having a threaded hole and an external thread at both ends, and adjacent rods are connected by threads.

[0011] The present invention is further configured such that: the outer wall of the housing is provided with a shielding plate for blocking the rotation hole.

[0012] The present invention is further configured such that: the inner wall of the hexagonal groove is provided with a plurality of anti-slip protrusions, the anti-slip protrusions being made of rubber material.

[0013] The present invention is further configured such that: an observation window is provided on the outside of the housing, and the observation window is made of transparent material.

[0014] The present invention is further configured such that: the observation window sidewall is provided with a scale, the worm gear is provided with a pointer, the pointer is fixedly connected to the worm gear, and the pointer is provided with a red coating.

[0015] The worm gear transmission mechanism enables precise adjustment and self-locking of the audio angle; the turntable has a hexagonal groove that engages with the extension rod for remote ground operation; the protective shell ensures transmission stability, and the multi-section extension rod is easy to carry; the anti-slip protrusions inside the hexagonal groove enhance connection stability; the observation window and pointer provide clear angle indication; the shielding plate is dustproof and waterproof, improving outdoor service life.

[0016] By adopting the above technical solution, the beneficial effects of this utility model are as follows: By setting up an angle adjustment device consisting of a worm gear and a worm, and utilizing the self-locking characteristics of the worm gear transmission mechanism, the angle can be automatically locked after adjustment without the need for additional locking operations. This effectively avoids the fatigue failure and vibration offset problems that are prone to occur in traditional spring-locking structures, and significantly improves the reliability and stability of angle fixing. By setting a turntable with a hexagonal groove below the worm gear and cooperating with the snap-fit ​​block at the end of the extension rod, the operator can remotely operate the device from the ground via the extension rod, completely avoiding the dangers of working at height and greatly improving the safety and convenience of the adjustment process. By setting a graduated transparent observation window on the housing and a pointer with a red coating on the worm gear, a clear visual indication is provided for precise angle adjustment, enabling operators to quickly and accurately adjust the sound to the target angle and optimizing the efficiency of broadcast coverage adjustment. By designing the extension rod as a multi-segment rod and connecting it with threads, the extension rod is guaranteed to have sufficient operating length, and it is easy to disassemble, carry and store, which greatly improves the portability and applicability of the equipment. By setting anti-slip protrusions made of rubber on the inner wall of the hexagonal groove, the friction between the snap-fit ​​block and the hexagonal groove is enhanced, effectively preventing slippage during transmission and ensuring the effectiveness and stability of power transmission in remote operation. 6. By installing a baffle plate on the outer wall of the rotating hole of the housing, dust, rainwater and other foreign objects can be prevented from entering the worm gear transmission mechanism, reducing wear and corrosion of the mechanism, extending the service life of the equipment, and improving its reliability in outdoor environments. Attached Figure Description

[0017] Figure 1 This is a perspective view of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the internal structure of an embodiment of the present utility model.

[0018] 1. Speaker body; 2. Mounting ring; 3. Angle adjustment mechanism; 4. Clamp; 5. Connecting bracket; 6. Connecting rod; 7. Worm gear; 8. Turntable; 9. Extension rod; 10. Hexagonal groove; 11. Snap-fit ​​block; 12. Housing; 13. Rotating hole; 14. Rotating shaft; 15. Rod body; 16. Threaded hole; 17. External thread; 18. Shielding plate; 19. Anti-slip protrusions; 20. Observation window; 21. Scale; 22. Pointer; 23. 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] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] like Figure 1 As shown, A mounting bracket for a broadcast speaker includes a speaker body. A mounting ring 2 is provided on one side of the speaker body and is fixedly connected to the speaker body. An angle adjustment device 3 is connected to the mounting ring 2. A clamp 4 connected to a utility pole is provided on one side of the angle adjustment device 3. The mounting ring 2 serves as a dedicated connection interface between the speaker body and the angle adjustment device 3, which ensures the stability of the speaker installation and achieves effective force transmission.

[0022] The angle adjustment device 3, through the cooperation of the connecting bracket 5 and the mounting ring 2, enables the speaker body to be adjusted in multiple dimensions. The clamp 4, as a special component for connecting with the utility pole, adopts a clamp structure to adapt to the installation requirements of utility poles of different diameters, realizing the quick installation and fixation of the mounting bracket. This not only ensures the stable installation of the speaker but also provides a flexible angle adjustment function, while ensuring the adaptability and reliability of outdoor installation.

[0023] like Figure 2 As shown, The angle adjustment device 3 includes a connecting frame 5, a connecting rod 6, a worm gear 7, and a worm 8. A housing 13 is provided around the worm gear 7 and worm 8. The housing 13 has a trapezoidal cross-section. Rotating holes 14 are provided on both the upper and lower surfaces of the housing 13 for the two ends of the worm 8 to pass through. A rotating shaft 15 is provided on the inner wall of the rotating hole 14. The outer wall of the rotating shaft 15 is fixedly connected to the inner wall of the rotating hole 14, and the inner wall of the rotating shaft 15 is fixedly connected to the outer peripheral wall of the worm 8. The housing 13 provides a fully enclosed protective structure for the worm gear 7 and worm 8, effectively preventing dust and rainwater from entering the transmission parts. The rotating shaft 15 within the rotating hole 14, through the fixed connection between the inner and outer walls, ensures both the precise positioning of the worm 8 and the concentricity during rotation. The rotating holes 14 on the upper and lower surfaces of the housing 13 provide a natural double-support structure for the worm 8, significantly improving the rigidity and stability of the transmission system. This not only improves the transmission accuracy of the worm gear 7 and worm 8 but also enhances the durability and service life of the entire angle adjustment device 3 in harsh outdoor environments, while facilitating production, assembly, and maintenance.

[0024] The outer wall of the housing 13 is provided with a shielding plate 19 to block the rotation hole 14, which can prevent rainwater and dust from falling into the inside of the housing 13 and affecting the transmission accuracy of the worm gear 7 and worm 8.

[0025] The housing 13 has an observation window 21 made of transparent material. The side wall of the observation window 21 has a scale 22. A pointer 23 is mounted on the worm gear 7, with its tilt angle matching that of the housing 13. The pointer 23 is close to the observation window 21 for easy operator observation. The pointer 23 is fixedly connected to the worm gear 7 and has a red coating. The transparent material of the observation window 21 allows the operator to directly observe the position of the pointer 23 on the internal worm gear 7 without opening the housing 13. The scale 22 on the side wall of the observation window 21 and the pointer 23 on the worm gear 7 together form a visual angle indication system. The fixed connection between the pointer 23 and the worm gear 7 ensures that the indication is completely synchronized with the actual angle change. The red coating on the pointer 23 provides a high-contrast, highly visible display in outdoor environments. The downward-facing observation window 21 makes it easier for the operator to observe, allowing them to accurately determine the current angle position when operating from the ground using the extension rod 10. This greatly improves the accuracy and efficiency of angle adjustment and avoids the need for repeated adjustments.

[0026] The connecting rod 6 passes through the mounting ring 2 and is fixedly connected to the mounting ring 2. By fixing the connecting rod 6 to the mounting ring 2, the connecting rod 6 is fixedly connected to the speaker body 1. Furthermore, when the connecting rod 6 rotates, it drives the mounting ring 2 to rotate, thereby driving the speaker body 1 to rotate.

[0027] After the two ends of the connecting rod 6 pass through the connecting frame 5, they are fixed by nuts. The connecting rod 6 is rotatably connected to the connecting frame 5. Through the rotatable connection between the connecting rod 6 and the connecting frame 5, the speaker body 1 is ensured to rotate relative to the connecting frame 5 along with the connecting rod 6.

[0028] The worm gear 7 is fixedly connected to the end of the connecting rod 6 on one side of the connecting frame 5. The worm 8 is placed on one side of the worm gear 7 and meshes with the worm gear 7. A turntable 9 is provided below the worm 8. An extension rod 10 is detachably connected to the turntable 9. A snap-fit ​​block 12 is provided at the end of the extension rod 10. The snap-fit ​​block 12 snaps with the hexagonal groove 11. The extension rod 10 includes several rods 16. Each rod 16 has a threaded hole 17 and an external thread 18 at both ends. Adjacent rods 16 are connected by threads. The fixed connection between the worm gear 7 and the end of the connecting rod 6 ensures reliable transmission of torque for adjusting the speaker angle. The meshing connection between the worm 8 and the worm gear 7 realizes the angle self-locking function by utilizing the transmission principle of the worm gear 7 and worm 8, avoiding the rotation of the speaker body 1 after angle adjustment from affecting accuracy.

[0029] The turntable 9 is located below the worm gear 8 as a power input interface. It forms a quick-assembly and disassembly structure with the extension rod 10 through a detachable connection. The extension rod 10 adopts a multi-section rod body 16 design and is connected by threads. It can flexibly adjust the length of the operating rod according to the installation height requirements, and is also easy to transport and store. It realizes an integrated connection from ground operation to high-altitude transmission, enabling operators to safely and conveniently complete the precise angle adjustment of the high-altitude audio system from the ground, while ensuring the stability of the transmission system and the accessibility of operation.

[0030] The lower end face of the turntable 9 has a hexagonal groove 11, and the inner wall of the hexagonal groove 11 has several anti-slip protrusions 20. The anti-slip protrusions 20 are made of rubber. The hexagonal groove 11 on the lower end face of the turntable 9 provides a standardized docking interface for the locking block 12 of the extension rod 10, ensuring precise alignment of power transmission. The unique hexagonal structure of the hexagonal groove 11 can effectively prevent relative rotation slippage during operation. The rubber anti-slip protrusions 20 on the inner wall of the groove increase the friction between the protrusions and the locking block 12 through elastic deformation, further eliminating the possibility of transmission disengagement. The rubber material has both anti-rust and shock-absorbing properties, which are suitable for outdoor environments and reduce transmission impact. This enables quick docking and separation between the extension rod 10 and the turntable 9, while ensuring the reliability and stability of power transmission during high-altitude remote operation, significantly improving the efficiency and safety of angle adjustment.

[0031] To ensure that the rod 16 does not fall off when the extension rod 10 is rotated, a through hole is made on the rod 16, and a pin passes through the through hole to prevent the rod 16 from rotating when adjusting the angle.

[0032] When it is necessary to adjust the angle of the speaker body 1, determine the number of rods 16 that need to be spliced ​​according to the height of the speaker body 1. Assemble multiple rods 16 into an extension rod 10. Then, align the snap-fit ​​block 12 at the end of the extension rod 10 with the hexagonal slot 11 so that the snap-fit ​​block 12 snaps into the hexagonal slot 11. Then rotate the extension rod 10. During the rotation of the extension rod 10, the extension rod 10 will drive the turntable 9 to rotate together. Since the turntable 9 is fixedly connected to the worm gear 8, the rotation of the turntable 9 will drive the worm gear 8 to rotate together. The rotation of the worm gear 8 will drive the worm wheel 7 that meshes with the worm gear 8 to rotate, thereby driving the speaker body 1 to rotate and realize the angle adjustment of the speaker body 1.

[0033] As the worm gear 7 rotates, the pointer 23 on it will also rotate along with the worm gear 7. Users can directly observe the scale 22 to determine the angle of rotation of the speaker body 1. When the speaker body 1 is too high, some tools can be used to help observe it, such as the magnification function of a mobile phone camera or a telescope. The pointer 23 with the red coating is more conspicuous and easier to observe.

[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any ordinary changes and substitutions made by those skilled in the art within the scope of the technical solution of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mounting bracket for a broadcast speaker, comprising a speaker body, characterized in that: The speaker body is provided with a mounting ring (2) on one side, which is fixedly connected to the speaker body. An angle adjustment device (3) is connected to the mounting ring (2), and a clamp (4) connected to the utility pole is provided on one side of the angle adjustment device (3). The angle adjustment device (3) includes a connecting frame (5), a connecting rod (6), a worm wheel (7) and a worm (8). The connecting rod (6) passes through the mounting ring (2) and is fixedly connected to the mounting ring (2). The worm wheel (7) and the worm (8) are provided with a housing (13). The two ends of the connecting rod (6) pass through the connecting frame (5) and are fixed by nuts. The connecting rod (6) is rotatably connected to the connecting frame (5). The worm gear (7) is placed on one side of the connecting frame (5) and fixedly connected to the end of the connecting rod (6). The worm (8) is placed on one side of the worm gear (7) and meshed with the worm gear (7). A turntable (9) is provided below the worm (8). An extension rod (10) is detachably connected to the turntable (9).

2. The mounting bracket for a broadcast audio system according to claim 1, characterized in that: The turntable (9) has a hexagonal groove (11) on its lower end face, and the extension rod (10) has a snap-fit ​​block (12) at its end, which snaps into the hexagonal groove (11).

3. The mounting bracket for a broadcast audio system according to claim 1, characterized in that: The upper and lower surfaces of the housing (13) are provided with rotating holes (14) for the two ends of the worm (8) to pass through. The inner wall of the rotating hole (14) is provided with a rotating shaft (15). The outer wall of the rotating shaft (15) is fixedly connected to the inner wall of the rotating hole (14), and the inner wall of the rotating shaft (15) is fixedly connected to the outer peripheral wall of the worm (8).

4. The mounting bracket for broadcast audio equipment according to claim 1, characterized in that: The extension rod (10) includes several rods (16), each rod (16) having a threaded hole (17) and an external thread (18) at both ends, and adjacent rods (16) are connected by threads.

5. A mounting bracket for broadcast audio equipment according to claim 3, characterized in that: The outer wall of the housing (13) is provided with a shielding plate (19) to block the rotation hole (14).

6. A mounting bracket for broadcast audio equipment according to claim 2, characterized in that: The inner wall of the hexagonal groove (11) is provided with several anti-slip protrusions (20), which are made of rubber.

7. A mounting bracket for broadcast audio equipment according to claim 3, characterized in that: The shell (13) has a trapezoidal cross section, and an observation window (21) is provided on the downward side of the shell (13). The observation window (21) is made of transparent material.

8. A mounting bracket for broadcast audio equipment according to claim 7, characterized in that: The observation window (21) has a scale (22) on its side wall, and a pointer (23) is provided on the worm gear (7). The tilt angle of the pointer (23) is consistent with that of the housing (13). The pointer (23) is fixedly connected to the worm gear (7), and the pointer (23) is coated with a red coating.

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