CN112073864A

CN112073864A - Acoustic noise reduction device

Info

Publication number: CN112073864A
Application number: CN202010930008.3A
Authority: CN
Inventors: 陈增辉
Original assignee: Sonic Communications Shenzhen Co ltd
Current assignee: Sonic Communications Shenzhen Co ltd
Priority date: 2020-09-07
Filing date: 2020-09-07
Publication date: 2020-12-11
Anticipated expiration: 2040-09-07
Also published as: CN112073864B

Abstract

The invention discloses an acoustic noise reduction device, which comprises a mounting ring sleeved on the outer side of a microphone handle and an inner shield sleeved on the outer side of a microphone part, wherein an outer shield is sleeved on the outer side of the inner shield, a cavity corresponding to the microphone part is formed in the upper part of the inner shield, a notch corresponding to the microphone part and the cavity is formed in the upper part of the outer shield, the notch is larger than the size of the cavity, and the mounting ring is detachably mounted with the microphone handle through two fixing mechanisms. This scheme is through setting up two inside and outside fender covers of mutually supporting at the microphone head to avoid the interference of external noise when using, inside and outside two fender covers can keep its cavity and breach all the time and aim at user's oral area promptly sound source, ensure normal receipt, and guarantee the isolation to the noise, after the use, still can prevent collision and dustproof processing to the microphone head, ensure that the microphone head can normally receive the sound source.

Description

Acoustic noise reduction device

Technical Field

The invention relates to the technical field of microphone noise reduction, in particular to an acoustic noise reduction device.

Background

The microphone, known as a microphone, is translated from an english microphone (microphone), and is also called a microphone or a microphone. A microphone is an energy conversion device that converts a sound signal into an electrical signal. There are classes of moving coil, capacitor, electret and recently emerging silicon micro-microphones, but also liquid microphones and laser microphones. Most microphones are electret condenser microphones which operate on the principle of using a diaphragm of polymeric material with permanent charge isolation.

In the prior art, when a microphone is used, the microphone head of the microphone receives external noise except for the voice of a user, and the normal use of the microphone is seriously influenced, so an acoustic noise reduction device is provided.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides an acoustic noise reduction device.

In order to achieve the purpose, the invention adopts the following technical scheme:

an acoustic noise reduction device comprises a mounting ring sleeved on the outer side of a microphone handle and an inner shield sleeved on the outer side of a microphone part of a microphone, an outer shield is sleeved outside the inner shield, a cavity corresponding to the microphone part of the microphone is arranged at the upper part of the inner shield, a gap corresponding to the microphone part and the cavity is arranged at the upper part of the outer shield, and the gap is larger than the size of the cavity, the mounting ring is detachably mounted with the microphone handle through two fixing mechanisms, the inner diameter of the mounting ring is larger than the diameter of the microphone tube part, the bottom of the inner shield cover is connected with the top of the mounting ring in a sliding way through a first limiting ring, the outer side wall of the bottom of the inner shield cover is provided with a support ring, the bottom end of the outer shield cover is in sliding connection with the top wall of the support ring, and the outer side wall of the bottom of the inner shield cover is also provided with a counterweight eccentric block.

Furthermore, a plurality of damping bulges are arranged between the outer side wall of the inner shield and the inner wall of the outer shield, and the damping bulges are fixed with the outer wall of the inner shield.

Further, the inner shield and the outer shield are both made of sound-absorbing materials, such as sponge materials.

Furthermore, a first limiting annular groove is formed in the top of the mounting ring, the top end of the first limiting ring is fixed to the inner retaining cover, and the bottom end of the first limiting ring extends to the first limiting annular groove in the top of the mounting ring and is in sliding connection with the first limiting annular groove.

Furthermore, a plurality of balls are embedded in the first limiting ring groove in a rolling manner.

Further, fixed establishment is including the threaded rod that is located the collar base portion and rather than threaded connection, the one end of threaded rod extends to the outside of collar and installs the nut, and the other end extends and rotates through the bearing swivel ring to microphone handle one side and installs arc extrusion piece.

Furthermore, the arc-shaped extrusion block is made of rubber, and anti-skid grains are arranged on one side close to the microphone handle.

Further, a second limiting ring is installed at the bottom end of the outer shield, a second limiting ring groove is formed in the top wall of the support ring, and the second limiting ring is connected with the second limiting ring groove in a sliding mode.

Compared with the prior art, the invention has the beneficial effects that:

this scheme is through setting up two inside and outside fender covers of mutually supporting at the microphone head to avoid the interference of external noise when using, inside and outside two fender covers can keep its cavity and breach all the time and aim at user's oral area promptly sound source, ensure normal receipt, and guarantee the isolation to the noise, after the use, still can prevent collision and dustproof processing to the microphone head, ensure that the microphone head can normally receive the sound source.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.

Fig. 1 is a schematic structural diagram of an acoustic noise reduction apparatus according to the present invention when an outer shield is attached to an inner shield;

fig. 2 is a schematic structural diagram of an acoustic noise reduction apparatus according to the present invention when an outer shield opposes an inner shield;

FIG. 3 is the internal cross-sectional view of FIG. 1 of an acoustic noise reducer in accordance with the present invention;

FIG. 4 is a schematic structural view of an inner shield;

FIG. 5 is a schematic structural view of an inner shield;

FIG. 6 is an enlarged view of a portion a of FIG. 1;

fig. 7 is an enlarged view of a portion b of fig. 3.

In the figure: the microphone comprises a microphone handle 1, a microphone tube part 2, a mounting ring 3, a first limiting ring 4, an inner shield cover 5, a support ring 6, an outer shield cover 7, a counterweight eccentric block 8, a cavity 9, a damping bulge 10, a notch 11, a second limiting ring 12, a threaded rod 13, a nut 14, an arc-shaped extrusion block 15 and a bearing rotating ring 16.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1-7, an acoustic noise reduction device comprises a mounting ring 3 sleeved on the outer side of a microphone handle 1, and further comprises an inner shield 5 sleeved on the outer side of the microphone tube 2, wherein an outer shield 7 is further sleeved on the outer side of the inner shield 5, a cavity 9 corresponding to the microphone tube 2 is formed in the upper portion of the inner shield 5, a notch 11 corresponding to the microphone portion 2 and the cavity 9 is formed in the upper portion of the outer shield 7, the notch 11 is larger than the cavity 9 in size, the mounting ring 3 is detachably mounted on the microphone handle 1 through two fixing mechanisms, each fixing mechanism comprises a threaded rod 13 located at the bottom of the mounting ring 3 and in threaded connection with the mounting ring, one end of each threaded rod 13 extends to the outer side of the mounting ring 3 and is provided with a nut 14, and the other end extends to one side of the microphone handle 1 and is rotatably provided with an arc-shaped extrusion block 15 through a bearing rotating ring. The screw cap 14 is rotated to drive the threaded rod 13 to be in threaded fit with the mounting ring 3, so that the arc-shaped extrusion block 15 is driven to pressurize the microphone handle 1, and the microphone is fixedly mounted on the microphone.

The arc-shaped extrusion block 15 is made of rubber, and anti-skid grains are arranged on one side close to the microphone handle 1. The arc-shaped extrusion block 15 made of rubber can reduce the pressure of the threaded rod 13 on the microphone handle 1, and avoid damage.

The inner diameter of the mounting ring 3 is larger than the diameter of the microphone part 2, and the design is mainly to facilitate the device to be sleeved and mounted on the microphone.

The bottom of the inner shield 5 is connected with the top of the mounting ring 3 through the first limiting ring 4 in a sliding manner, the outer side wall of the bottom of the inner shield 5 is provided with the support ring 6, the bottom end of the outer shield 7 is connected with the top wall of the support ring 6 in a sliding manner, and the outer side wall of the bottom of the inner shield 5 is provided with the counterweight eccentric block 8.

A plurality of damping bulges 10 are arranged between the outer side wall of the inner shield 5 and the inner wall of the outer shield 7, and the damping bulges 10 are fixed with the outer wall of the inner shield 5. The damping protrusion 10 is made of rubber or a material that allows for interference, and is used for increasing the friction force between the inner shield 5 and the outer shield 7, and increasing the stability when the outer shield 7 rotates to the rear side of the inner shield 5, and preventing the outer shield from accidentally returning to the front side of the inner shield 5.

The inner shield 5 and the outer shield 7 are made of sound-absorbing material, such as sponge material. Interior fender cover 5 and outer fender cover 7 can shield the isolation to external noise on the one hand, can carry out the draw in distance to the sound that human oral area sent on the one hand, make things convenient for sound to be received by microphone head 2, in addition after the microphone finishes using, rotate outer fender cover 7 and set up it and interior fender cover 5 relatively to protect microphone head 2, prevent collision and prevent that the dust from adsorbing on microphone head 2's surface.

First spacing ring channel has been seted up at the top of collar 3, and the top of first spacing ring 4 is fixed with interior fender cover 5, and the bottom of first spacing ring 4 then extends to the first spacing ring channel at collar 3 top, and rather than sliding connection. Interior fender cover 5 is realized rotating with collar 3 through first spacing ring 4 and is connected, and the user is keeping microphone head 2 under the prerequisite of upwards placing, even if its angle slope wantonly, all can be under the cooperation of counter weight eccentric block 8 for interior fender cover 5 is rotatory on collar 3, thereby makes cavity 9 of interior fender cover 5 and the breach 11 of outer fender cover 7 face human oral area promptly sound source direction, conveniently receives the sound source.

A plurality of balls are embedded in the first limiting ring groove in a rolling manner. The arrangement of the balls can reduce the friction resistance, and the inner retaining cover 5 can further conveniently slide or rotate on the mounting ring 3 through the first limiting ring 4.

The bottom end of the outer shield 7 is provided with a second limiting ring 12, the top wall of the support ring 6 is provided with a second limiting ring groove, and the second limiting ring 12 is connected with the second limiting ring groove in a sliding manner. The outer shield 7 is matched with the second limiting annular groove on the support ring 6 through the second limiting ring 12, so that sliding or rotating is realized, and the cavity 9 of the inner shield 5 is shielded or not shielded.

The working principle and the using process of the invention are as follows:

1. the device is sleeved from the microphone tube part 2 to the microphone handle 1, and then the arc-shaped extrusion block 15 is driven to extrude the microphone handle 1 by rotating the threaded rod and threaded rod 13, so that the device is fixedly installed.

2. During the use, rotate outer shield 7, make it remove to the rear side of interior shield 5, the state shown in figure 1 promptly can, then can use, the sound that user's oral area sent is collected through interior shield 5 and outer shield 7 and is gathered together, has the radio reception effect, and external noise can be kept apart by interior shield 5 and outer shield 7 simultaneously and is blockked, realizes making an uproar.

3. When in use, as long as the microphone part 2 is kept in an upward state, the inner shield 5 and the outer shield 7 can be rotated by the arrangement of the counterweight eccentric block 8 no matter how the angle is changed, so that the microphone part 2 can always receive the sound source.

4. After the anti-collision dustproof microphone is used, the outer shield 7 is reversely rotated to form an approximate sphere together with the inner shield 5, and the microphone part 2 of the microphone can be wrapped in the sphere to achieve anti-collision and dustproof effects.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. An acoustic noise reduction device comprises a mounting ring (3) sleeved on the outer side of a microphone handle (1), and is characterized by further comprising an inner blocking cover (5) sleeved on the outer side of the microphone tube part (2), wherein an outer blocking cover (7) is further sleeved on the outer side of the inner blocking cover (5), a cavity (9) corresponding to the microphone tube part (2) is formed in the upper portion of the inner blocking cover (5), a notch (11) corresponding to the microphone tube part (2) and the cavity (9) is formed in the upper portion of the outer blocking cover (7), the notch (11) is larger than the size of the cavity (9), the mounting ring (3) is detachably mounted with the microphone handle (1) through two fixing mechanisms, the inner diameter of the mounting ring (3) is larger than the diameter of the microphone tube part (2), the bottom of the inner blocking cover (5) is in sliding connection with the top of the mounting ring (3) through a first limiting ring (4), install support ring (6) on the lateral wall of interior fender cover (5) bottom, the roof sliding connection of the bottom of outer fender cover (7) and support ring (6), still install counter weight eccentric block (8) on the lateral wall of interior fender cover (5) bottom.

2. An acoustic noise reduction device according to claim 1, characterized in that a plurality of damping protrusions (10) are mounted between the outer side wall of the inner shield (5) and the inner wall of the outer shield (7), and the damping protrusions (10) are fixed to the outer wall of the inner shield (5).

3. An acoustic noise reducer according to claim 1 or 2, wherein the inner shield (5) and the outer shield (7) are made of sound absorbing material, such as sponge material.

4. An acoustic noise reduction device according to claim 1, wherein a first limiting annular groove is formed at the top of the mounting ring (3), the top end of the first limiting ring (4) is fixed to the inner shield (5), and the bottom end of the first limiting ring (4) extends to the first limiting annular groove at the top of the mounting ring (3) and is slidably connected with the first limiting annular groove.

5. An acoustic noise reducing device according to claim 4, wherein a plurality of balls are roll-fitted in the first retainer ring groove.

6. An acoustic noise reduction device according to claim 1, wherein the fixing mechanism comprises a threaded rod (13) located at the bottom of the mounting ring (3) and in threaded connection with the mounting ring, one end of the threaded rod (13) extends to the outside of the mounting ring (3) and is provided with a nut (14), and the other end extends to one side of the microphone handle (1) and is rotatably provided with an arc-shaped extrusion block (15) through a bearing rotating ring (16).

7. An acoustic noise reducing device according to claim 6, characterized in that the curved squeezing block (15) is made of rubber and that the side close to the microphone handle (1) is provided with anti-slip threads.

8. An acoustic noise reduction device according to claim 1, wherein a second limiting ring (12) is mounted at the bottom end of the outer shield (7), a second limiting annular groove is formed in the top wall of the support ring (6), and the second limiting ring (12) is slidably connected with the second limiting annular groove.