A double-microphone with high sound collection efficiency

Abstract

The utility model discloses a double microphone head microphone of high -efficient sound collecting relates to microphone technical field, the utility model discloses a microphone handheld body, the inner chamber of microphone handheld body is provided with adjustable microphone head subassembly, the left side of microphone handheld body inner chamber is connected with the mesh enclosure through quick -detachable component, adjustable microphone head subassembly includes the mounting panel, the surface of mounting panel is fixedly connected with microphone handheld body. The utility model discloses adjustable microphone head subassembly, utilizes mounting panel and microphone handheld body stable connection, and the cooperation of the slide bar and the sliding sleeve between both sides connecting plate makes the stable sliding of pickup microphone, and the synergies of moving mechanism and rotating mechanism realize the flexible adjustment of microphone position and angle positioning, thereby effectively promoted the adaptability of pickup direction and the convenience of use, strengthened the accuracy and stability of sound collection, simplified the operation step and optimized the integrity of overall structure.

Description

Technical Field

[0001] This utility model belongs to the field of microphone technology, and in particular relates to a dual-microphone with high-efficiency sound pickup. Background Technology

[0002] Existing dual-microphones typically consist of a housing and two microphones housed inside the housing. The fixed mounting positions of the two microphones within the housing mean that the spacing between them cannot be changed. Since the distance and size of sound sources vary in different usage scenarios, microphones with a fixed spacing are prone to over-picking or distortion when facing nearby or large sound sources, while they struggle to adequately capture sound when facing distant or small sound sources. This makes dual-microphones poorly adaptable to sound sources of different distances and sizes, and unable to meet the efficient sound collection needs of different scenarios.

[0003] Chinese patent application CN206879037U discloses a dual-microphone stereo headset microphone, including a microphone stand, a pickup device, and a signal transmission device. The microphone stand includes an arc-shaped, elastic headband with a locking head at one end and a mounting base at the other end. The signal transmission device includes a signal transmission line and an L-shaped plug. The tail of the L-shaped plug is connected to one end of the signal transmission line. The pickup device comprises a malleable connecting rod, a microphone base mounted on one end of the connecting rod, and dual microphones mounted on the microphone base. The dual microphones include a left channel microphone and a right channel microphone. The other end of the connecting rod is mounted on the mounting base via an angle adjustment mechanism. The other end of the signal transmission line passes through the connecting rod at the point where it connects to the mounting base and is connected to the signal output terminal of the dual microphones.

[0004] While the patent improves the traditional single-microphone setup by replacing it with a dual-microphone setup without altering the overall structure and appearance of the headset microphone, allowing for simultaneous amplification of signals from both microphones to enhance sound pickup, or separate amplification for stereo sound, this patent primarily focuses on the stereo pickup functionality of the dual microphones. It doesn't address the adjustability of the microphones; their positions are relatively fixed and cannot be flexibly adjusted according to actual usage scenarios and needs. Furthermore, the patent doesn't mention quick-release mechanisms for the grille, potentially compromising the microphone's ease of maintenance and cleaning.

[0005] To address these issues, we provide a high-efficiency dual-microphone for sound pickup. Utility Model Content

[0006] The purpose of this invention is to provide a high-efficiency dual-microphone for sound acquisition. By combining an adjustable microphone assembly and a quick-release assembly, it solves the problem that existing dual-microphones have poor adaptability to sound sources of different distances and sizes due to the fixed microphone spacing.

[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0008] This utility model relates to a high-efficiency dual-microphone for sound pickup, comprising a microphone handheld body. An adjustable microphone assembly is disposed within the inner cavity of the microphone handheld body. A mesh cover is connected to the left side of the inner cavity of the microphone handheld body via a quick-release assembly. The adjustable microphone assembly includes a mounting plate, the surface of which is fixedly connected to the microphone handheld body. Connecting plates are fixedly connected to the front and rear sides of the left side of the mounting plate. A sliding rod is fixedly connected to the opposite side of the connecting plate. Two sliding sleeves are slidably connected to the surface of the sliding rod. A pickup microphone is fixedly connected to the left side of the two sliding sleeves. A moving mechanism is disposed on the right side of the sliding sleeves. A rotating mechanism is disposed on the right side of the moving mechanism, which penetrates the mounting plate.

[0009] The present invention is further configured such that the moving mechanism includes a moving plate, the right side of which is fixedly connected to a rotating mechanism, and a fixed rod is fixedly connected to the right side of two sliding sleeves. The right side of the fixed rod passes through the moving plate, and two inclined grooves that cooperate with the fixed rod are formed on the surface of the moving plate. The moving plate, as a core load-bearing component, is connected to the rotating mechanism to transmit motion. The two inclined grooves on its surface, through cooperation with the fixed rod, convert the lateral movement of the sliding sleeves into a guiding oblique displacement. The fixed rod passes through the moving plate and is fixedly connected to the two sliding sleeves, playing the role of connecting and transmitting force, ensuring the coordination and stability of the entire mechanism during the movement process.

[0010] The present invention is further configured such that the rotating mechanism includes a screw, the top of which passes through the microphone handheld body and is fixedly connected to a rotary knob. A threaded sleeve is threadedly connected to the surface of the screw, and the left side of the threaded sleeve is fixedly connected to a movable plate via a connecting rod. The surface of the mounting plate has a movable opening that mates with the threaded sleeve. The screw receives external operation and generates rotational motion through the rotary knob. When the screw rotates, the threaded sleeve on its surface moves axially along the thread. The threaded sleeve transmits this linear motion to the movable plate through the connecting rod. At the same time, the movable opening on the mounting plate provides the necessary space and guidance for the movement of the threaded sleeve, thereby ensuring the smoothness and stability of the entire transmission process.

[0011] The present invention is further configured such that the quick-release assembly includes a connecting ring, the upper and lower sides of the left side of the connecting ring are fixedly connected to the mesh cover via a bracket, a positioning ring is fixedly connected to the left side of the microphone handheld body cavity, and a locking mechanism is provided on the left side of the positioning ring. The connecting ring is connected to the mesh cover via the bracket to provide support and positioning. At the same time, the positioning ring in the microphone handheld body provides an installation reference for the entire assembly, and the locking mechanism enables the quick fixing and release of the connecting ring, thereby ensuring that the mesh cover can be stably installed and easily disassembled.

[0012] The present invention is further configured such that the locking mechanism includes two driving mechanisms, the bottom of the two driving mechanisms passes through the microphone handpiece and is fixedly connected to a rotating rod, and a pressing plate is fixedly connected to the opposite side of the rotating rod. The two driving mechanisms receive operation input, their bottoms pass through the microphone handpiece and are fixedly connected to the rotating rod, and the pressing plates at both ends of the rotating rod transmit the action of the driving mechanism to the outside, forming a pressing operation point for triggering locking or releasing, thereby realizing the control of the locking function.

[0013] The present invention is further configured such that the driving mechanism includes a micro motor, the output end of the micro motor at its bottom is fixedly connected to the rotating rod, the top of the micro motor is provided with a first protective shell, the bottom of the first protective shell is fixedly connected to the microphone handheld body, the micro motor, as a power source, directly drives the rotating rod to rotate through its bottom output end, while the first protective shell at the top is used to wrap and protect the micro motor, and at the same time the first protective shell is fixedly connected to the microphone handheld body to achieve stable installation of the entire driving mechanism.

[0014] The present invention is further configured such that a threaded groove is provided on the right side surface of the mesh cover, and a second protective shell is provided on the left side of the mesh cover. A slot that mates with the threaded groove is provided on the left side of the inner cavity of the second protective shell. The mesh cover achieves a detachable connection by engaging the threaded groove on its surface with the slot in the inner cavity of the second protective shell. The second protective shell provides left-side coverage protection for the mesh cover, thereby achieving a protective function while ensuring the stability of the structural connection.

[0015] The present invention is further configured such that the surface of the inner cavity of the microphone handpiece is provided with sound-absorbing cotton, the surface of the microphone handpiece is provided with shock-absorbing rubber grip sleeve, and the surface of the shock-absorbing rubber grip sleeve is provided with anti-slip particles. The sound-absorbing cotton on the surface of the inner cavity of the microphone handpiece is used to absorb internal sound waves to reduce interference, and the shock-absorbing rubber grip sleeve covering its surface plays a buffering and shock-absorbing role through its own elastic properties. At the same time, the anti-slip particles on the surface of the grip sleeve provide a stable grip effect by increasing the friction of the contact surface.

[0016] The present invention has the following beneficial effects.

[0017] 1. This utility model uses an adjustable microphone assembly, which is securely connected to the microphone handpiece via a mounting plate. The sliding rod and sliding sleeve between the two connecting plates allow the microphone to slide smoothly. The coordinated action of the moving mechanism and the rotating mechanism enables flexible adjustment and angle positioning of the microphone position, thereby effectively improving the adaptability of the pickup direction and the convenience of use, enhancing the accuracy and stability of sound acquisition, while simplifying the operation steps and optimizing the overall structural integrity.

[0018] 2. This utility model ensures the reliability of the overall structure through the quick-release component and the stable connection between the connecting ring and the mesh cover. The positioning ring makes the positioning of the microphone handheld cavity more accurate, and the locking mechanism further enhances the locking effect of the component, thereby improving the convenience and efficiency of the disassembly and assembly process. At the same time, it ensures the stability and durability of the connection parts, effectively avoiding loosening or displacement during use. The overall design optimizes the user experience and extends the service life of the product. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0020] Figure 1 A stereo diagram of a high-efficiency dual-microphone.

[0021] Figure 2 A side view of a high-efficiency dual-microphone.

[0022] Figure 3 This is a cross-sectional view of a high-efficiency dual-microphone.

[0023] Figure 4 A three-dimensional diagram of a quick-release component in a high-efficiency dual-microphone.

[0024] Figure 5 A three-dimensional diagram of an adjustable microphone assembly in a high-efficiency dual-microphone.

[0025] In the attached diagram: 1. Microphone handheld body; 101. Mesh cover; 2. Adjustable microphone assembly; 21. Mounting plate; 22. Connecting plate; 23. Slide rod; 24. Slide sleeve; 25. Microphone pickup head; 26. Moving mechanism; 261. Moving plate; 262. Fixing rod; 27. Rotating mechanism; 271. Screw; 272. Rotary knob; 273. Threaded sleeve; 3. Quick release assembly; 31. Connecting ring; 32. Positioning ring; 33. Locking mechanism; 331. Rotating rod; 332. Pressing plate; 4. Drive mechanism; 41. Micro motor; 42. First protective shell. Detailed Implementation

[0026] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Please see Figure 1-5 This utility model is a high-efficiency dual-microphone for sound pickup, including a microphone handheld body 1. An adjustable microphone assembly 2 is provided in the inner cavity of the microphone handheld body 1. A mesh cover 101 is connected to the left side of the inner cavity of the microphone handheld body 1 through a quick-release assembly 3. The adjustable microphone assembly 2 includes a mounting plate 21. The surface of the mounting plate 21 is fixedly connected to the microphone handheld body 1. A connecting plate 22 is fixedly connected to the front and rear sides of the left side of the mounting plate 21. A slide rod 23 is fixedly connected to the opposite side of the connecting plate 22. Two sliding sleeves 24 are slidably connected to the surface of the slide rod 23. A pickup microphone 25 is fixedly connected to the left side of the two sliding sleeves 24. A moving mechanism 26 is provided on the right side of the sliding sleeves 24. A rotating mechanism 27 is provided through the mounting plate 21 on the right side of the moving mechanism 26.

[0028] Specifically: The inner cavity of the microphone handheld body 1 houses the adjustable microphone assembly 2 and is connected to the mesh cover 101 via the quick-release assembly 3. The mounting plate 21 in the adjustable microphone assembly 2 is fixed in the handheld body. The connecting plate 22 supports the slide bar 23 so that the slide sleeve 24 can slide along it. The slide sleeve 24 carries the microphone 25 and its position is adjusted via the moving mechanism 26. The moving mechanism 26 is driven by the rotating mechanism 27 that passes through the mounting plate 21 to achieve the overall adjustment function.

[0029] The moving mechanism 26 includes a moving plate 261, the right side of which is fixedly connected to the rotating mechanism 27. A fixing rod 262 is fixedly connected to the right side of two sliding sleeves 24. The right side of the fixing rod 262 passes through the moving plate 261. Two oblique grooves that mate with the fixing rod 262 are formed on the surface of the moving plate 261. The rotating mechanism 27 includes a screw 271, the top of which passes through the microphone handheld body 1 and is fixedly connected to a rotary knob 272. A threaded sleeve 273 is threaded onto the surface of the screw 271. The left side of the threaded sleeve 273 is fixedly connected to the moving plate 261 via a connecting rod. A moving opening that mates with the threaded sleeve 273 is formed on the surface of the mounting plate 21. The quick-release assembly 3 includes a connecting ring 31, the upper and lower sides of which are fixedly connected to the mesh cover 101 via a bracket. A positioning ring 32 is fixedly connected to the left side of the inner cavity of the microphone handheld body 1. A locking mechanism 33 is provided on the left side of the positioning ring 32. The locking mechanism 33 includes two drive mechanisms 4. The bottom of the two drive mechanisms 4 passes through the microphone handpiece 1 and is fixedly connected to a rotating rod 331. A pressing plate 332 is fixedly connected to the opposite side of the rotating rod 331. The drive mechanism 4 includes a micro motor 41. The output end of the micro motor 41 is fixedly connected to the rotating rod 331. A first protective shell 42 is provided on the top of the micro motor 41. The bottom of the first protective shell 42 is fixedly connected to the microphone handpiece 1. A threaded groove is provided on the right side surface of the mesh cover 101. A second protective shell is provided on the left side of the mesh cover 101. A groove that mates with the threaded groove is provided on the left side of the inner cavity of the second protective shell. Sound-absorbing cotton is provided on the inner cavity surface of the microphone handpiece 1. A shock-absorbing rubber grip sleeve is provided on the surface of the microphone handpiece 1. Anti-slip particles are provided on the surface of the shock-absorbing rubber grip sleeve.

[0030] Specifically: the moving plate 261 in the moving mechanism 26 achieves displacement through connection with the rotating mechanism 27, and the inclined groove on its surface cooperates with the fixed rod 262 to form a guide structure; the rotating mechanism 27 drives the screw 271 to rotate through the rotary knob 272, so that the threaded sleeve 273 moves axially and drives the moving plate 261 to move; the quick-release assembly 3 is fixed to the mesh cover 101 through the connecting ring 31, and the positioning ring 32 limits the mesh cover 101; the locking mechanism 33 controls the rotating rod 331 to swing through the micro motor 41 in the drive mechanism 4, which is a micro geared DC motor, thereby driving the pressing plate 332 to achieve the locking or releasing function; the drive mechanism 4 is protected by the first protective shell 42, and the mesh cover 101 is detachably connected to the slot in the second protective shell through the threaded groove; the inner cavity of the microphone handheld body 1 is lined with sound-absorbing cotton to reduce noise, and the outer layer of shock-absorbing rubber grip sleeve enhances the grip stability through surface anti-slip particles.

[0031] The working principle of this utility model is as follows: During operation, the rotary knob 272 on the rotating mechanism 27 drives the screw 271 to rotate, causing the threaded sleeve 273 to move axially along the screw 271, thereby pushing the moving plate 261 in the moving mechanism 26 to move laterally. The inclined groove on the surface of the moving plate 261 cooperates with the fixed rod 262, converting the lateral movement of the moving plate 261 into the sliding sleeve 24 sliding towards or away from each other on the sliding rod 23, thereby synchronously adjusting the distance between the two microphone heads 25. When it is necessary to clean or replace the mesh cover 101, the rotating rod 331 is controlled to swing by the drive mechanism 4, which drives the pressing plate 332 to move, which can quickly release the locking between the connecting ring 31 and the positioning ring 32, realizing the convenient disassembly of the mesh cover 101. In addition, the sound-absorbing cotton in the inner cavity of the microphone handheld body 1 can effectively absorb internal sound wave interference, and the shock-absorbing rubber grip sleeve wrapped on its surface provides anti-slip and shock-absorbing functions, ensuring the stability and comfort of use.

[0032] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A high-efficiency dual-microphone for sound acquisition, comprising a microphone handheld body (1), characterized in that: The microphone handheld body (1) has an adjustable microphone head assembly (2) in its inner cavity, and a mesh cover (101) is connected to the left side of the inner cavity of the microphone handheld body (1) via a quick-release assembly (3). The adjustable microphone assembly (2) includes a mounting plate (21), the surface of which is fixedly connected to the microphone handheld body (1). A connecting plate (22) is fixedly connected to the front and rear sides of the left side of the mounting plate (21). A slide rod (23) is fixedly connected to the opposite side of the connecting plate (22). Two sliding sleeves (24) are slidably connected to the surface of the slide rod (23). A microphone (25) is fixedly connected to the left side of the two sliding sleeves (24). A moving mechanism (26) is provided on the right side of the sliding sleeves (24). A rotating mechanism (27) is provided on the right side of the moving mechanism (26) through the mounting plate (21).

2. The dual-microphone for high-efficiency sound acquisition according to claim 1, characterized in that: The moving mechanism (26) includes a moving plate (261), the right side of which is fixedly connected to the rotating mechanism (27), and a fixed rod (262) is fixedly connected to the right side of the two sliding sleeves (24). The right side of the fixed rod (262) passes through the moving plate (261), and the surface of the moving plate (261) is provided with two inclined grooves that cooperate with the fixed rod (262).

3. The dual-microphone for high-efficiency sound acquisition according to claim 2, characterized in that: The rotating mechanism (27) includes a screw (271), the top of which passes through the microphone handheld body (1) and is fixedly connected to a rotary knob (272). The surface of the screw (271) is threadedly connected to a threaded sleeve (273). The left side of the threaded sleeve (273) is fixedly connected to the moving plate (261) via a connecting rod. The surface of the mounting plate (21) is provided with a movable opening that cooperates with the threaded sleeve (273).

4. The dual-microphone for high-efficiency sound acquisition according to claim 1, characterized in that: The quick-release assembly (3) includes a connecting ring (31). The upper and lower sides of the left side of the connecting ring (31) are fixedly connected to the mesh cover (101) via a bracket. A positioning ring (32) is fixedly connected to the left side of the inner cavity of the microphone handheld body (1). A locking mechanism (33) is provided on the left side of the positioning ring (32).

5. A high-efficiency dual-microphone for sound acquisition according to claim 4, characterized in that: The locking mechanism (33) includes two drive mechanisms (4). The bottom of the two drive mechanisms (4) passes through the microphone handpiece (1) and is fixedly connected to a rotating rod (331). A pressing plate (332) is fixedly connected to the opposite side of the rotating rod (331).

6. A high-efficiency dual-microphone for sound acquisition according to claim 5, characterized in that: The drive mechanism (4) includes a micro motor (41), the output end of the micro motor (41) is fixedly connected to the rotating rod (331), the top of the micro motor (41) is provided with a first protective shell (42), and the bottom of the first protective shell (42) is fixedly connected to the microphone handheld body (1).

7. A high-efficiency dual-microphone for sound acquisition according to claim 1, characterized in that: The right side surface of the mesh cover (101) is provided with a threaded groove, and the left side of the mesh cover (101) is provided with a second protective shell, and the left side of the inner cavity of the second protective shell is provided with a groove that mates with the threaded groove.

8. A dual-microphone for high-efficiency sound acquisition according to claim 1, characterized in that: The inner surface of the microphone handheld body (1) is provided with sound-absorbing cotton, and the surface of the microphone handheld body (1) is provided with shock-absorbing rubber grip sleeve, and the surface of the shock-absorbing rubber grip sleeve is provided with anti-slip particles.

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