Angle-adjustable mounting fixture for array microphone

Abstract

The utility model discloses angle adjustable installation fixing device of array microphone, including base, the base is swinged to be connected with the adjusting lever, the adjusting lever is fixedly connected with the auxiliary disc on, the movable sleeve of adjusting lever has the moving disc, the one side fixedly connected with spring of auxiliary disc is towards moving disc, the utility model discloses the design of control group, angle adjustable structure breaks the restriction of existing equipment pickup spindle fixed, supports multiple array collaborative pickup, and expands application boundary, in the scene of large -scale meeting room, exhibition hall, open office area etc.

Description

Technical Field

[0001] This utility model relates to the field of array microphone installation technology, specifically to an angle-adjustable mounting and fixing device for array microphones. Background Technology

[0002] As a voice acquisition device integrating multiple microphone units, array microphones have been widely used in many fields such as conference communication, in-vehicle interaction, and security monitoring due to the directional sound pickup advantage formed by the collaborative sound pickup of multiple units. Its core function is to accurately capture target voice signals through a specific arrangement of microphone units, effectively improving the signal-to-noise ratio and recognition accuracy of voice acquisition, and providing reliable signal input support for various voice interaction scenarios.

[0003] However, in practical applications, the mechanical structure design of existing array microphones has gradually revealed its incompatibility with diverse scenario requirements. The most prominent issue is the rigid contradiction between the pickup direction and the sound source location. The pickup effect of an array microphone highly depends on the pickup axis formed by the arrangement of its internal microphone units according to a preset rule. This axis direction is the optimal pickup direction for the device, but the direction of the sound source in actual use often has significant uncertainty. In conference scenarios, the distribution of participants often changes with the needs of the discussion, and the arrangement of tables and chairs may also be adjusted according to the number of participants. Array microphones with fixed installation angles cannot consistently align their pickup axis with the main speaker, resulting in poor acquisition of some voice signals. In a vehicle setting, the height of different drivers and passengers varies greatly, and the voice output positions of the driver, front passenger, and rear passengers are different. Fixed-angle equipment cannot meet the sound pickup needs of all seats, which can easily lead to weak voice signals in some areas. In security monitoring scenarios, sound sources that need to be monitored, such as abnormal noises in specific channels or communication content in office areas, may deviate from the fixed installation angle of the array microphones, which will lead to a decrease in the signal-to-noise ratio of the equipment and affect the accuracy of subsequent speech recognition.

[0004] Existing array microphones typically employ a one-piece fixed mechanical structure, meaning their installation angle cannot be adjusted once installed. This fixed design makes it difficult for the device to adapt to dynamic changes in the direction of the sound source through mechanical adjustment. Essentially, this creates a core contradiction between the fixed mechanical installation angle and the dynamic changes in the direction of the sound source, directly limiting the full potential of the array microphone's pickup performance. Therefore, there is an urgent market demand for array microphone mounting and fixing devices that allow for flexible angle adjustment. Utility Model Content

[0005] The purpose of this invention is to provide an angle-adjustable mounting and fixing device for array microphones to solve the problems mentioned in the background art.

[0006] This utility model is an adjustable mounting and fixing device for an array microphone, including a base. An adjusting rod is rotatably connected to the base. An auxiliary plate is fixedly connected to the adjusting rod. A movable plate is movably sleeved on the adjusting rod. A spring is fixedly connected to the side of the auxiliary plate facing the movable plate, and the end of the spring away from the auxiliary plate is fixedly connected to the movable plate. Insertion rods are fixedly connected at equal intervals to the movable plate, and the springs are sleeved on the insertion rods. Insertion holes are equally spaced on the base, and the number of insertion rods corresponds to the number of insertion holes. An adjusting component A is fixedly connected to the tail end of the adjusting rod. A connecting rod is fixedly connected to the adjusting component A, and a ball is fixedly connected to the bottom end of the connecting rod. The ball has an arc groove. The adjusting rod, auxiliary plate, spring, movable plate, insertion rod, and insertion hole form one group, and two groups are provided. In another group, an adjusting component B is fixedly connected to the adjusting rod, and a sliding rod is fixedly connected to the adjusting component B. All the above components together form a control group.

[0007] By adopting the above technical solution, the array microphone can be adjusted to multiple angles to meet the usage requirements of different environments and ensure the performance of the array microphone.

[0008] A disc shell is fixedly connected to the top of the connecting rod. A rotating disk is rotatably connected to the inner cavity of the disc shell via a motor. A ring thread is fixedly connected to the upper surface of the rotating disk. Attached fasteners are equidistantly inserted into the disc shell, and an attachment is restrained within each fastener. An array microphone is fixedly connected to the attachment. These components together form a fixing assembly.

[0009] By adopting the above technical solution, the array microphones can be effectively fixed by fixing the attachment to array microphones of different shapes and sizes, ensuring the effective control of the control group and preventing loosening during angle adjustment.

[0010] Compared with the prior art, the beneficial effects of this utility model are: 1. The design of the control group in this utility model can bring the following benefits: Precisely adapts to dynamic sound sources, significantly improving sound pickup performance: The adjustable angle structure breaks the limitation of fixed pickup axes in existing devices. Users can flexibly adjust the orientation of the array microphones according to the actual sound source location, ensuring that the pickup axis is always aligned with the target sound area. In conference scenarios, regardless of how participants change their seats or postures, adjusting the angle ensures that the microphone accurately captures spoken speech, avoiding blurry sound due to positional shifts. In vehicle scenarios, the angle can be finely adjusted in real time to meet the sound requirements of drivers and passengers of different heights or different seats, achieving balanced acquisition of voice signals across all seats. In security monitoring scenarios, the microphone angle can be quickly corrected based on adjustments to key monitoring areas, ensuring that abnormal sound source signals are clearly captured, effectively improving the accuracy and reliability of speech recognition, and fundamentally solving the rigid contradiction between fixed angles and dynamic sound sources. Supporting multi-array collaborative sound pickup expands application boundaries: In scenarios requiring full-area coverage, such as large conference rooms, exhibition halls, and open office areas, the adjustable angle design of multiple array microphones allows for precise and complementary sound pickup ranges from each device. By adjusting the angle of each microphone individually, blind spots can be avoided, and cross-interference between different devices can be reduced, forming a comprehensive, dead-angle-free voice acquisition network. These collaborative advantages overcome the limitations of existing fixed-angle array microphones in terms of poor sound pickup performance in large-area scenarios, expanding the application boundaries of array microphones in large public spaces and complex office environments.

[0011] 2. This utility model, through the design of the annular wire strip on the rotating disk and the toothed snap-fit ​​component at the bottom, can bring the following advantages: The meshing locking structure enhances the stability of angle fixation and prevents displacement after adjustment: The meshing structure formed by the annular thread on the rotating disk and the toothed locking device at the bottom achieves mechanical locking through the precise engagement of the teeth and thread. Compared to the friction-based positioning used in some existing angle adjustment structures, this meshing method provides stronger resistance to loosening. When the array microphone is adjusted to the target angle, the meshing surfaces of the teeth and annular thread can form multiple contact points for force, effectively resisting the risk of angle displacement caused by the device's own weight, slight vibrations, or accidental touches. Especially in bumpy environments such as vehicles or meeting scenarios with frequent personnel movement, it can always keep the pickup axis aligned with the target direction, ensuring long-term stable and effective fixation. The structure provides uniform stress distribution, extending the device's lifespan: This meshing structure transmits force through surface contact between the ring thread and the teeth. Compared to point or line contact fixing methods, it has a larger force-bearing area, evenly distributing the weight of the array microphone and external forces across multiple meshing points. This prevents wear and deformation caused by stress concentration in localized areas. Simultaneously, the meshing transmission method between the ring thread and the teeth reduces sliding friction during adjustment, lowering mechanical losses and making angle adjustment smoother. This significantly improves the overall durability of the mounting device and reduces subsequent maintenance costs. Attached Figure Description

[0012] Figure 1 This is a three-dimensional schematic diagram of the main structure of this utility model; Figure 2 This is a side view of the main structure of this utility model; Figure 3 This is a structural diagram of the attached body and array microphone in this utility model; Figure 4 This is a diagram showing the positional distribution of the control group and the fixed group in this utility model; Figure 5 This is a structural diagram of the fixing assembly in this utility model; Figure 6 This is a structural diagram of the control group in this utility model.

[0013] In the picture: 1. Base; 2. Adjusting rod; 3. Auxiliary plate; 4. Spring; 5. Moving plate; 6. Connecting rod; 7. Connecting hole; 8. Adjusting component A; 9. Connecting rod; 10. Ball; 11. Arc groove; 12. Adjusting component B; 13. Sliding rod; 14. Disc shell; 15. Rotating plate; 16. Ring thread; 17. Snap-fit ​​component; 18. Attachment; 19. Array microphone. Detailed Implementation

[0014] 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.

[0015] Please see Figures 1 to 4This utility model provides a technical solution: an adjustable mounting and fixing device for an array microphone, including a base 1, an adjusting rod 2 rotatably connected to the base 1, an auxiliary plate 3 fixedly connected to the adjusting rod 2, a movable plate 5 movably sleeved on the adjusting rod 2, a spring 4 fixedly connected to the side of the auxiliary plate 3 facing the movable plate 5, and the end of the spring 4 away from the auxiliary plate 3 fixedly connected to the movable plate 5; insertion rods 6 are fixedly connected at equal intervals to the movable plate 5, and the springs 4 are sleeved on the insertion rods 6; the base 1 has equidistant openings... There is a plug-in hole 7, and the number of plug-in rods 6 and plug-in holes 7 are the same and correspond one-to-one; the tail end of the adjusting rod 2 is fixedly connected to the adjusting component A8, the adjusting component A8 is fixedly connected to the connecting rod 9, the bottom end of the connecting rod 9 is fixedly connected to the ball 10, and the ball 10 is provided with an arc groove 11; the adjusting rod 2, auxiliary plate 3, spring 4, moving plate 5, plug-in rod 6 and plug-in hole 7 are a group, and there are two groups in total. The adjusting rod 2 of the other group is fixedly connected to the adjusting component B12, and the adjusting component B12 is fixedly connected to the sliding rod 13.

[0016] The base 1 has symmetrical mounting holes, and a connecting plate is fixedly connected to the middle of it.

[0017] The auxiliary plate 3 has a socket for the plug rod 6; the spring 4 is used to reset the moving plate 5.

[0018] The plug rod 6 is inserted into the plug hole 7.

[0019] Adjustment rod 2, auxiliary plate 3, spring 4, moving plate 5, plug rod 6, and plug hole 7 together constitute an adjustment group. In this design, there are two adjustment groups in the control group. One is used to adjust the position of adjustment component A8, and the other is used to adjust the position of adjustment component B12. The two together determine the final orientation of array microphone 19.

[0020] The sliding rod 13 is slidably fitted into the arc groove 11.

[0021] When adjusting the angle of the adjusting component A8, simply pull the movable disk 5 away from the base 1 manually. The plug rod 6, which was originally inserted into the plug hole 7, will no longer be inserted into the plug hole 7. At this time, the plug rod 6 will move in the hole opened on the auxiliary disk 3. At this time, the restriction of the adjusting rod 2 is released. Rotate the adjusting rod 2, and the adjusting rod 2 can then adjust the position of the adjusting component A8 and the array microphone 19 on the fixed assembly that is connected to it. When the desired position is reached, release the pull on the movable disk 5. At this time, the movable disk 5, along with the plug rod 6, will be fixed again under the reset of the previously compressed spring 4. Similarly, another control group, during the movement of the adjustment component B12, will use the arc groove 11 to assist the sliding rod 13 in pushing the ball 10 and the connected fixed group to rotate; in summary, the two control groups can be combined to jointly determine the final orientation of the array microphone 19.

[0022] Please see Figures 3 to 6 The top of the connecting rod 9 is fixedly connected to a disc shell 14. The inner cavity of the disc shell 14 is connected to a rotating disk 15 via a motor. A ring thread 16 is fixedly connected to the upper surface of the rotating disk 15. A snap-fit ​​component 17 is equidistantly inserted into the disc shell 14. An attachment 18 is restricted inside the snap-fit ​​component 17. An array microphone 19 is fixedly connected to the attachment 18.

[0023] The rotating disk 15 is driven by a motor.

[0024] The bottom end of the snap-fit ​​part 17 is toothed, and the gap between the teeth engages with the ring thread 16. When the rotating disk 15 rotates with the ring thread 16, the snap-fit ​​part 17 will move under the action of the guide groove opened on the disk housing 14, thereby restricting the attachment 18.

[0025] The attachment 18 is fixedly connected to the array microphone 19 by bolts.

[0026] The attachment 18 is fixed to the array microphone 19 with bolts, and then the array microphone 19 with the attachment 18 is placed on the disc housing 14. The motor driving the rotating disk 15 is started. As the motor rotates, the rotating disk 15 will rotate with the annular thread 16 on it. Since the bottom end of the locking member 17 is known to be toothed, the gap between its teeth meshes with the annular thread 16. When the rotating disk 15 rotates with the annular thread 16, the locking member 17 will move under the action of the guide groove opened on the disc housing 14, thereby restricting the attachment 18.

[0027] It should be noted that the accompanying drawings in the embodiments of this utility model clearly and completely describe the technical solutions of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

Claims

1. An angle-adjustable mounting and fixing device for an array microphone, comprising a base (1), characterized in that: An adjusting rod (2) is rotatably connected to the base (1), an auxiliary plate (3) is fixedly connected to the adjusting rod (2), a movable plate (5) is movably sleeved on the adjusting rod (2), a spring (4) is fixedly connected to the side of the auxiliary plate (3) facing the movable plate (5), and the end of the spring (4) away from the auxiliary plate (3) is fixedly connected to the movable plate (5). The movable disk (5) is fixedly connected with plug rods (6) at equal intervals, and the spring (4) is sleeved on the plug rods (6); The base (1) has equidistant insertion holes (7), and the number of insertion rods (6) is the same as the number of insertion holes (7) and they correspond one-to-one.

2. The angle-adjustable mounting and fixing device for array microphones according to claim 1, characterized in that: The adjusting rod (2) is fixedly connected to an adjusting component A (8), and a connecting rod (9) is fixedly connected to the adjusting component A (8). A ball (10) is fixedly connected to the bottom end of the connecting rod (9), and an arc groove (11) is provided on the ball (10).

3. The adjustable mounting and fixing device for array microphones according to claim 1, characterized in that: The adjusting rod (2), auxiliary plate (3), spring (4), moving plate (5), plug rod (6), and plug hole (7) are a set, and there are two sets in total. The adjusting rod (2) of the other set is fixedly connected to the adjusting component B (12), and the adjusting component B (12) is fixedly connected to the sliding rod (13).

4. The adjustable mounting and fixing device for array microphones according to claim 2, characterized in that: The top of the connecting rod (9) is fixedly connected to a disc shell (14), and the inner cavity of the disc shell (14) is connected to a rotating disk (15) via a motor. The upper surface of the rotating disk (15) is fixedly connected to a ring thread (16), and the disc shell (14) is equidistantly inserted with snap-fit ​​pieces (17).

5. The adjustable mounting and fixing device for array microphones according to claim 4, characterized in that: The snap-fit ​​(17) contains an attachment (18), on which an array microphone (19) is fixedly connected.

6. The angle-adjustable mounting and fixing device for an array microphone according to claim 4, characterized in that: The bottom end of the snap-fit ​​member (17) is toothed, and the gap between the teeth engages with the annular wire strip (16).

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