A lightweight portable foldable radius-adjustable microphone sound collection array structure

Abstract

The utility model discloses a kind of lightweight portable foldable radius adjustable microphone sound collecting array structure, belong to sound collecting array field, including center disc, the hinge seat of several annular uniform distribution arrangements is fixedly connected with center disc side face, center disc top is fixedly connected with mounting block, hinge seat is provided with support arm mechanism on mounting block, support arm mechanism includes two groups of telescopic structure. Advantage lies in: setting support arm mechanism and connecting mechanism, support mounting plate by setting several telescopic components, can be according to actual demand, the distance between each mounting seat is adjusted, the array radius of circular array is accurately controlled in combination with scale, and can be locked by screw, utilize the characteristics of array radius adjustable to adapt to different scenes, and after use, the setting of dial bead can be single-handedly quickly fold and store support arm mechanism part, convenient storage and transportation.

Description

Technical Field

[0001] This utility model relates to the field of sound receiving arrays, and in particular to a lightweight, portable, foldable, and radius-adjustable microphone sound receiving array structure. Background Technology

[0002] In the field of audio acquisition, microphone arrays are widely used in scenarios such as meeting recording, speech recognition, and acoustic measurement because they can achieve functions such as sound source localization and noise suppression.

[0003] A search revealed a Chinese patent publication number CN220234897U, which discloses a microphone noise reduction and sound pickup device. This patent includes a mounting base, with a fixing block fixed to one side of the top of the mounting base. A connecting column is rotatably connected to the inner side of the fixing block, and a fixing seat is fixed to the inner side of the connecting column. This invention uses a drive motor to rotate the entire fixing seat, allowing the fixing seat to adjust the orientation angle of the microphone array. The motor drives a threaded rod to adjust the tilt angle of the microphone array, increasing the range of microphone movement. This allows for more precise alignment of the microphone array with the sound source during sound pickup, improving noise reduction and sound pickup effects. The device solves the problem that existing microphone pickup devices can only be adjusted within a limited range, resulting in a small adjustment range and insufficient precision, leading to inaccurate orientation of the microphone array. Furthermore, existing microphone pickup devices have fixed microphone element positions, making it impossible to adjust the element spacing according to actual needs, thus limiting their applicability. Additionally, many products are costly, bulky, and cumbersome to fold, making them inconvenient to carry and transport, failing to meet the demands for low cost, lightweight design, and portability. Utility Model Content

[0004] The purpose of this invention is to provide a lightweight, portable, foldable, and radius-adjustable microphone array structure to solve the above-mentioned problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A lightweight, portable, foldable, and radius-adjustable microphone array structure includes a central disk. Several evenly distributed, ring-shaped hinge seats are fixedly connected to the side of the central disk. A mounting block is fixedly connected to the top of the central disk. Support arm mechanisms are provided on the hinge seats and mounting blocks. The support arm mechanisms include two sets of telescopic structures. One set of telescopic structures is fixedly mounted on the mounting block, and the other set is movably mounted on the hinge seats. Each telescopic structure includes a first connecting rod, with a second connecting rod slidably connected to one end of the first connecting rod. A third connecting rod is slidably connected to the end of the second connecting rod away from the first connecting rod. A connecting mechanism is provided at the end of the third connecting rod away from the second connecting rod. The connecting mechanism includes a mounting base, which is fixedly connected to the third connecting rod. A mounting plate for fixing the microphone is fixedly connected to the mounting base. A vertical pole is fixedly connected to the bottom of the central disk, and a triangular support mechanism is installed at the bottom of the vertical pole.

[0007] Preferably, the hinge seat has a mounting hole, and a rotating shaft is fixedly connected to the No. 1 connecting rod that is movably mounted on the hinge seat. The rotating shaft is rotatably connected in the mounting hole.

[0008] Preferably, the hinge seat has two sets of limiting holes, the lines connecting the two limiting holes and the mounting holes are perpendicular to each other, and a ball bearing is fixedly connected to the first connecting rod on which the rotating shaft is mounted, the ball bearing cooperating with the limiting holes.

[0009] Preferably, the second and third connecting rods are provided with sliding grooves and scales, and the first and second connecting rods are respectively provided with threaded holes for locking the second and third connecting rods.

[0010] Preferably, a number of mounting rings are fixedly connected to the mounting plate, and the mounting rings are used to install the microphone windscreen.

[0011] Preferably, the triangular support mechanism includes a mounting plate, which is fixedly connected to the end of the upright away from the central plate. Several connecting seats are rotatably connected to the mounting plate, and mounting legs are fixedly connected to the connecting seats. Support legs are slidably connected to the end of the mounting legs away from the mounting plate. Anti-slip pads are hinged to the support legs, and locking bolts for fixing the support legs are threaded to the mounting legs. Reinforcing components are provided between the several mounting legs.

[0012] Preferably, the reinforcing assembly includes reinforcing rods hinged to the inside of the mounting leg, and a number of reinforcing rods are hinged to the same connecting disc.

[0013] The beneficial effects are as follows: It is equipped with a support arm mechanism and a connecting mechanism. By setting up several telescopic components to support the mounting plate, it can adjust the distance between each mounting base according to actual needs and precisely control the array radius of the circular array in combination with the scale. It can also be locked with screws. The adjustable array radius can be used to adapt to different scenarios. After use, the support arm mechanism can be folded and stored quickly with one hand by setting the ball bearing, which is convenient for storage and transportation.

[0014] The additional technical features and advantages of this utility model will become more apparent from the following description, or may be learned through specific practice of this utility model. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of a lightweight, portable, foldable, and radius-adjustable microphone array structure according to the present invention;

[0017] Figure 2 This is a schematic diagram of the retracted state of the support arm mechanism of the lightweight, portable, foldable, and adjustable-radius microphone array structure described in this utility model.

[0018] Figure 3 This is a schematic diagram of the triangular support mechanism structure of a lightweight, portable, foldable, and radius-adjustable microphone array structure described in this utility model.

[0019] Figure 4 This is a schematic diagram of the central disk structure of a lightweight, portable, foldable, and radius-adjustable microphone array structure according to the present invention.

[0020] Figure 5 This is a schematic diagram of the support arm mechanism of a lightweight, portable, foldable, and adjustable-radius microphone array structure described in this utility model.

[0021] Figure 6 This is a schematic diagram of the connection mechanism of the lightweight, portable, foldable, and radius-adjustable microphone array structure described in this utility model.

[0022] The reference numerals in the attached drawings are explained as follows: 101, center plate; 102, hinge seat; 103, upright; 104, mounting block; 105, mounting hole; 106, limiting hole; 107, signal processing component; 201, connecting rod No. 1; 202, connecting rod No. 2; 203, connecting rod No. 3; 204, slide groove; 205, scale; 206, bead; 207, rotating shaft; 208, threaded hole; 301, mounting seat; 302, mounting plate; 303, mounting ring; 401, mounting plate; 402, connecting seat; 403, mounting leg; 404, support leg; 405, anti-slip pad; 406, locking bolt; 407, reinforcing rod; 408, connecting plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] 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.

[0025] The present invention will be further described below with reference to the accompanying drawings:

[0026] like Figure 1 — Figure 6As shown, a lightweight, portable, foldable, and adjustable-radius microphone array structure includes a central disk 101. Several evenly distributed, ring-shaped hinge seats 102 are fixedly connected to the side of the central disk 101. The central disk 101 and the hinge seats 102 are integrally formed. A mounting block 104 is bolted to the top of the central disk 101. Support arm mechanisms are provided on the hinge seats 102 and the mounting block 104. The support arm mechanism includes two sets of telescopic structures. One set of telescopic structures is fixedly mounted on the mounting block 104, and the other set is movably mounted on the hinge seats 102. The telescopic structure includes a first connecting rod 201, a second connecting rod 202 slidably connected to one end of the first connecting rod 201, and a third connecting rod 203 slidably connected to the end of the second connecting rod 202 away from the first connecting rod 201. The first connecting rod 201 and the second connecting rod 202... The third connecting rod 203 is a hollow round tube, machined from high-strength aviation aluminum alloy. This ensures structural strength while achieving lightweight design. The material is also easy to process, reducing production difficulty and contributing to overall low cost. A connecting mechanism is located at the end of the third connecting rod 203 furthest from the second connecting rod 202. This mechanism includes a mounting base 301, which is bolted to the third connecting rod 203. A mounting plate 302 for fixing the microphone is bolted to the mounting base 301. A vertical pole 103 is bolted to the bottom of the central plate 101, and a signal processing component 107 is bolted to the vertical pole 103. The signal processing component 107 and the microphone can be connected via a J599 aviation connector. A triangular support mechanism is installed at the bottom of the vertical pole 103.

[0027] In this embodiment, the hinge base 102 has a mounting hole 105. A rotating shaft 207 is bolted to the first connecting rod 201 movably mounted on the hinge base 102. The rotating shaft 207 is rotatably connected in the mounting hole 105. The first connecting rod 201 with the rotating shaft 207 is evenly distributed at 120°. Another set of first connecting rods 201 are vertically upward. This arrangement allows the four microphones to be evenly distributed on the surface of the circular array. This distribution method can collect sound signals from all directions, improving the accuracy and completeness of audio acquisition.

[0028] In this embodiment, the hinge seat 102 is provided with two sets of limiting holes 106. The lines connecting the two limiting holes 106 and the mounting holes 105 are perpendicular to each other. The first connecting rod 201, on which the rotating shaft 207 is mounted, is connected to a ball bearing 206 by bolts. The ball bearing 206 cooperates with the limiting holes 106. The setting of the ball bearing 206 allows the operator to operate with one hand after use, folding all the first connecting rods 201 into a folded rod structure, which is convenient for storage and transportation.

[0029] In this embodiment, the second connecting rod 202 and the third connecting rod 203 are provided with sliding grooves 204 and scales 205. The first connecting rod 201 and the second connecting rod 202 are respectively provided with threaded holes 208 for locking the second connecting rod 202 and the third connecting rod 203. The threaded holes 208 are standard threaded holes, and the second connecting rod 202 and the third connecting rod 203 can be locked by screwing a bolt into the threaded holes 208.

[0030] In this embodiment, a plurality of mounting rings 303 are bolted to the mounting plate 302, and the mounting rings 303 are used to mount the microphone windscreen.

[0031] In this embodiment, the triangular support mechanism includes a mounting plate 401, which is bolted to the end of the upright 103 away from the central plate 101. A plurality of connecting seats 402 are rotatably connected to the mounting plate 401, and mounting legs 403 are bolted to the connecting seats 402. A support leg 404 is slidably connected to the end of the mounting leg 403 away from the mounting plate 401. An anti-slip pad 405 is hinged to the support leg 404, and a locking bolt 406 for fixing the support leg 404 is threaded onto the mounting leg 403. A reinforcing assembly is provided between the plurality of mounting legs 403, including a reinforcing rod 407 hinged to the inner side of the mounting leg 403. A common connecting plate 408 is hinged between the plurality of reinforcing rods 407. The triangular support mechanism can raise or lower the height of the central plate 101, and the reinforcing rod 407 can improve the support strength between the mounting legs 403, prevent tilting and torsion, and improve support stability.

[0032] Working principle: When using the device, move it to the working position, first unfold the mounting legs 403 on the connecting base 402 so that the anti-slip pad 405 is supported on the ground, then rotate the locking bolt 406 to loosen the lock between the mounting legs 403 and the support legs 404, adjust the center plate 101 to a suitable height, then bend the first connecting rod 201 on the side downwards so that the ball bearing 206 on the first connecting rod 201 enters the lower limiting hole 106 from the upper limiting hole 106. At this time, the mounting base 301 forms a spherical array. Then, install several microphones one by one on the mounting plate 302 and linearly connect them to the signal processing component 107. The microphone's sound pickup effect is adjusted by pulling the second connecting rod 202 and the third connecting rod 203 until the desired sound pickup effect is achieved. Then, the bolt is screwed into the threaded hole 208. The bolt can generate sufficient friction between the second connecting rod 202 and the third connecting rod 203 to fix the length of the second connecting rod 202 and the third connecting rod 203. At this time, the microphone can start to pick up sound. After use, the above operation is reversed to remove the microphone. The first connecting rod 201 can be folded and stored quickly with one hand by using the setting of the dial 206. This achieves the characteristics of low cost, lightweight, portability and easy processing.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A lightweight, portable, foldable, and radius-adjustable microphone array structure, comprising a central disk (101), characterized in that: The central disk (101) has several annularly arranged hinge seats (102) fixedly connected to its side. A mounting block (104) is fixedly connected to the top of the central disk (101). Support arm mechanisms are provided on the hinge seats (102) and the mounting block (104). The support arm mechanisms include two sets of telescopic structures. One set of telescopic structures is fixedly installed on the mounting block (104), and the other set is movably installed on the hinge seats (102). Each telescopic structure includes a first connecting rod (201), one end of which is slidably connected to a second connecting rod (202). The second connecting rod (202) is slidably connected to the third connecting rod (203) at the end away from the first connecting rod (201). The third connecting rod (203) is provided with a connecting mechanism at the end away from the second connecting rod (202). The connecting mechanism includes a mounting base (301), which is fixedly connected to the third connecting rod (203). A mounting plate (302) for fixing a microphone is fixedly connected to the mounting base (301). A vertical pole (103) is fixedly connected to the bottom of the central plate (101), and a triangular support mechanism is installed at the bottom of the vertical pole (103).

2. The lightweight, portable, foldable, and radius-adjustable microphone array structure according to claim 1, characterized in that: The hinge seat (102) has a mounting hole (105), and a rotating shaft (207) is fixedly connected to the first connecting rod (201) that is movably mounted on the hinge seat (102). The rotating shaft (207) is rotatably connected in the mounting hole (105).

3. The lightweight, portable, foldable, and radius-adjustable microphone array structure according to claim 2, characterized in that: The hinge seat (102) is provided with two sets of limiting holes (106), and the lines connecting the two limiting holes (106) and the mounting hole (105) are perpendicular to each other. A bead (206) is fixedly connected to the first connecting rod (201) on which the rotating shaft (207) is installed, and the bead (206) cooperates with the limiting hole (106).

4. The lightweight, portable, foldable, and radius-adjustable microphone array structure according to claim 1, characterized in that: The second connecting rod (202) and the third connecting rod (203) are provided with sliding grooves (204), and the second connecting rod (202) and the third connecting rod (203) are provided with scales (205). The first connecting rod (201) and the second connecting rod (202) are respectively provided with threaded holes (208) for locking the second connecting rod (202) and the third connecting rod (203).

5. The lightweight, portable, foldable, and radius-adjustable microphone array structure according to claim 1, characterized in that: A plurality of mounting rings (303) are fixedly connected to the mounting plate (302), and the mounting rings (303) are used to mount microphone windscreens.

6. The lightweight, portable, foldable, and radius-adjustable microphone array structure according to claim 1, characterized in that: The triangular support mechanism includes a mounting plate (401), which is fixedly connected to one end of the upright (103) away from the central plate (101). A plurality of connecting seats (402) are rotatably connected to the mounting plate (401). Mounting legs (403) are fixedly connected to the connecting seats (402). A support leg (404) is slidably connected to one end of the mounting leg (403) away from the mounting plate (401). An anti-slip pad (405) is hinged to the support leg (404). A locking bolt (406) for fixing the support leg (404) is threaded onto the mounting leg (403). A reinforcing component is provided between the plurality of mounting legs (403).

7. A lightweight, portable, foldable, and radius-adjustable microphone array structure according to claim 6, characterized in that: The reinforcing assembly includes a reinforcing rod (407) hinged to the inside of the mounting leg (403), and a plurality of reinforcing rods (407) are hinged to the same connecting disc (408).

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