CN220368779U

CN220368779U - Audio collection device

Info

Publication number: CN220368779U
Application number: CN202322116085.7U
Authority: CN
Inventors: 胡朝卓
Original assignee: Yibin Ruikong Technology Co ltd
Current assignee: Yibin Ruikong Technology Co ltd
Priority date: 2023-08-07
Filing date: 2023-08-07
Publication date: 2024-01-19
Anticipated expiration: 2033-08-07

Abstract

The utility model relates to the technical field of sensors, and discloses an audio collection device which is used for solving the problem that in the prior art, a microphone is easy to collect interference sounds of a measured object and the outside at the same time, so that adverse effects are caused. The microphone and the adapter plate are sequentially arranged in the pipe body, one end of the pipe body is closed, and the other end of the pipe body is sealed through a glue layer. This audio collection device uses the sleeve pipe to give sound insulation to the miaow head, can reduce the interference of outside air propagation sound to guarantee to be surveyed the effective collection of object audio frequency. The waterproof problem of miaow head has still been solved when guaranteeing the accuracy of gathering the audio frequency.

Description

Audio collection device

Technical Field

The utility model relates to the technical field of sensors, in particular to an audio collection device.

Background

In the cutting process of a cutter of processing equipment, in order to judge whether the cutter has abnormal conditions, a cutter breaking detector is generally adopted for detection, and the cutter breaking detector collects equipment sound signals through a microphone and processes and analyzes the equipment sound signals. The characteristic information of the signal, such as frequency and amplitude, is extracted through filtering, amplifying, digitizing and the like of the signal. And then, analyzing and judging the signals through an intelligent recognition algorithm to judge whether the cutter is broken or not.

For an object under test (such as a main shaft of a device) in operation, a sound signal generated by the object under test may be disturbed by other sounds, so that audio of the object under test cannot be collected in a targeted manner. Specifically, when the equipment is in processing, the main shaft can drive the tool bit to rotate at a high speed to generate sound, and when the tool bit rotating at the high speed contacts an object to be processed, the tool bit can also generate larger sound, and when a plurality of pieces of equipment are in a certain space to operate, the tool bit can also generate sound. At this time, various sounds in the air can mutually interfere, and because the microphone in the prior art is very strong in sensitivity, when the audio is collected, the sound of a detected object and the interference sound in the external air are easily collected simultaneously, so that bad original audio data are collected, and the bad influence is caused on the result of data processing of equipment.

Disclosure of Invention

The utility model aims to provide an audio collection device so as to solve the problem that the microphone proposed in the prior art is easy to collect interference sounds of a measured object and the outside at the same time, so that adverse effects are caused.

In order to achieve the aim of the utility model, the utility model adopts the following technical scheme: an audio collection device, includes miaow head and keysets that are used for gathering audio signal and output the signal of telecommunication, still includes:

the microphone and the adapter plate are sequentially arranged in the pipe body, one end of the pipe body is closed, and the other end of the pipe body is sealed through the glue layer.

Preferably, the pipe body is a circular pipe, the inner cavity is circular, and the microphone is inserted into the bottom of the inner cavity.

Preferably, an annular elastic gasket is arranged on the inner cavity wall of the pipe body near the bottom of the cavity.

Preferably, the end of the annular elastic washer, which is far away from the bottom of the cavity, is provided with an inner chamfer.

Preferably, the tube body is a metal tube.

Preferably, the tube body is attached to the object to be measured through the mounting block.

Preferably, the mounting block is provided with a mounting groove in a concave manner on the side surface of the object to be tested, the pipe body is embedded in the mounting groove, and the groove wall of the mounting groove is provided with a through hole for the connecting wire of the adapter plate to pass through.

Preferably, the side surface of the mounting block, which is attached to the object to be measured, is a cambered surface.

The beneficial effects of the utility model are concentrated in that: this audio collection device uses the sleeve pipe to give sound insulation to the miaow head, can reduce the interference of outside air propagation sound to guarantee to be surveyed the effective collection of object audio frequency. The waterproof problem of miaow head has still been solved when guaranteeing the accuracy of gathering the audio frequency.

Drawings

FIG. 1 is a schematic view of the installation of the present utility model;

FIG. 2 is a perspective view of the present utility model;

FIG. 3 is a cross-sectional view of the present utility model;

FIG. 4 is a partial cross-sectional view of the present utility model;

wherein, 1, the miaow head; 2. an adapter plate; 3. a tube body; 4. a glue layer; 5. an annular elastic washer; 6. chamfering the inner side; 7. a mounting block; 8. a mounting groove; 9. a through hole; 10. a cambered surface.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the technical solutions in the embodiments of the present application will be described in more detail with reference to the accompanying drawings in the preferred embodiments of the present application

In the description of the present application, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate an orientation or a positional relationship based on the drawings, which are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

Example 1

Referring to fig. 1-4, an audio collection device includes a microphone 1 and an adapter plate 2 for collecting audio signals and outputting electrical signals. The microphone 1 may be an electric microphone, a capacitive microphone, a dynamic microphone, a piezoelectric microphone, a silicon microphone or a stereo microphone, and as the prior art, the receiver inside the microphone 1 may receive sound waves and may convert the received sound waves into an electrical signal, but the electrical signal output by the microphone 1 is usually weak and needs to be processed by an amplifying circuit, so as to facilitate subsequent audio processing and playing. Therefore, the adapter plays a role of a bridge between the microphone and the circuit, can transmit weak electric signals output by the microphone, and can provide proper impedance matching and protection for the microphone.

The audio collection device further comprises a tube body 3, the microphone 1 and the adapter plate 2 are sequentially arranged in the tube body 3, one end of the tube body 3 is closed, and the other end of the tube body is sealed through a glue layer 4. The physical separation through body 3 shields various interference sound, makes miaow head 1 gather the measured object that laminates to further guarantee the accuracy of gathering the audio frequency.

As a more specific implementation manner of this embodiment, since most of the microphone 1 has a circular or hemispherical shape, the tube 3 may be a circular tube, and the inner cavity has a circular shape, and the microphone 1 is inserted into the bottom of the cavity of the circular inner cavity. Of course, when the structure of the microphone 1 is square, the tube body 3 can also be a square tube, and the inner cavity is square, so as to form the microphone and the tube body fit.

Because the measured object generally generates vibration, in order to further optimize the installation mode of the microphone 1, in some embodiments, an annular elastic gasket 5 can be arranged on the inner cavity wall of the pipe body 3 close to the bottom of the cavity, and an inner chamfer 6 is arranged at one end of the annular elastic gasket 5 away from the bottom of the cavity, the inner chamfer 6 is convenient for placing the microphone 1 in the installation process, and the microphone 1 is firmly embedded in the pipe body 3 through the clamping of the annular elastic gasket 5, so that the microphone 1 is prevented from generating micro vibration in the pipe body 3, and good guarantee is provided for audio collection.

In addition, the pipe body 3 is a metal pipe, and can be a steel pipe, an iron pipe, a copper pipe and the like, the pipe body 3 can be preferably made of brass, and the test comparison shows that the brass has better sound insulation effect.

In order to enable the pipe body 3 to be attached to a measured object, and therefore sound generated by the measured object is collected, the pipe body 3 is attached to the measured object through the mounting block 7, and the periphery of the mounting block 7 can be fixed to the measured object through the anchor ear.

As a more specific implementation manner of this embodiment, the side surface of the mounting block 7, which is attached to the measured object, is concavely provided with a mounting groove 8, the mounting groove 8 may be an arc-shaped groove, the groove surface of the mounting groove 8 is adapted to the outer side surface of the pipe body 3, and the pipe body 3 is embedded in the mounting groove 8. Thus, the pipe body 3 can be fixed, and the pipe body 3 can be attached to the measured object. In addition, through holes 9 through which the connecting wires of the adapter plate 2 pass are formed in the groove walls of the mounting grooves 8.

Since the outer side surface of the measured object may be an arc surface, the side surface of the mounting block 7 attached to the measured object may be an arc surface 10. If the outer side surface of the measured object is a plane, the side surface of the mounting block 7, which is attached to the measured object, is a plane. Of course, the side to which the mounting block 7 is attached may be designed according to the side of the object to be measured.

The above description is only a preferred embodiment of the present utility model, and the patent protection scope of the present utility model is defined by the claims, and all equivalent structural changes made by the specification and the drawings of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An audio collection device comprising a microphone (1) for collecting audio signals and outputting electrical signals and an adapter plate (2), characterized in that it further comprises:

the microphone comprises a tube body (3), wherein the microphone (1) and the adapter plate (2) are sequentially arranged in the tube body (3), one end of the tube body (3) is closed, and the other end of the tube body is sealed through a glue layer (4).

2. An audio collection device according to claim 1, wherein the tube body (3) is a circular tube, the inner cavity is circular, and the microphone (1) is inserted into the bottom of the inner cavity.

3. An audio collection device according to claim 2, characterized in that the inner cavity wall of the tube body (3) is provided with an annular elastic washer (5) near the cavity bottom.

4. An audio collection device according to claim 3, characterized in that the end of the annular elastic washer (5) remote from the bottom of the cavity is provided with an inner chamfer (6).

5. An audio collection device according to claim 1, characterized in that the tube body (3) is a metal tube.

6. An audio collection device according to claim 1, characterized in that the tube (3) is attached to the object to be measured by means of a mounting block (7).

7. The audio collection device according to claim 6, wherein the mounting block (7) is provided with a mounting groove (8) in a concave manner on the side surface of the object to be measured, the pipe body (3) is embedded in the mounting groove (8), and the groove wall of the mounting groove (8) is provided with a through hole (9) for the connecting wire of the adapter plate (2) to pass through.

8. The audio collection device according to claim 7, wherein the side of the mounting block (7) attached to the object to be measured is an arc surface (10).