A dustproof microphone

Abstract

The utility model belongs to microphone technical field, concretely relates to a dustproof microphone, including base and microphone body, the base upside is equipped with the U -shaped support, and the microphone body both sides are rotatoryly installed on the U -shaped support through the pivot, and the microphone body upside is provided with dust screen, the dust screen is composed of filter layer and electrostatic adsorption layer, and the electrostatic adsorption layer is located in the inside of filter layer, and the filter layer is made of stainless steel mesh, and the electrostatic adsorption layer is made of electrostatic fiber filter material, the dust screen of microphone adopts filter layer and electrostatic adsorption layer double -deck structure, and the filter layer is made of stainless steel mesh or high -density plastic net, and the strength is high, and it is not easy to deform, and its wave -shaped structure increases the filtration area, reduces the airflow resistance, and can effectively intercept big particle, the electrostatic adsorption layer is made of electrostatic fiber filter material, and the surface is loaded permanent electrostatic charge, can high -efficiently capture tiny particle, simultaneously allows the sound wave to pass, guarantees the effect of receiving sound while, realizes good dustproof function.

Description

Technical Field

[0001] This utility model belongs to the field of microphone technology, specifically relating to a dustproof microphone. Background Technology

[0002] Microphones, as essential sound acquisition devices, play an indispensable role in many fields of modern society. In professional audio recording fields, such as music production, film dubbing, and radio program recording, high-quality microphones are key tools for capturing clear and pure sound, directly affecting the quality of the final audio work. In conference settings, whether it's a large-scale international corporate conference, an academic seminar, or a government meeting, microphones ensure that the voices of every speaker are accurately transmitted to the participants, guaranteeing the smooth progress of the meeting and the effective exchange of information.

[0003] In practical use, microphones are inevitably exposed to various environments, thus facing dust intrusion. Once dust particles enter the microphone, they adhere to critical components such as the diaphragm and voice coil. The diaphragm is the core component of the microphone that converts sound signals into electrical signals. Dust accumulation alters the diaphragm's mass distribution and vibration characteristics, leading to sound distortion and introducing noise and interference into the recorded or transmitted sound, severely affecting clarity and fidelity. The voice coil moves in a magnetic field, causing the diaphragm to vibrate. Dust accumulation increases the resistance to the voice coil's movement, reducing the microphone's sensitivity and decreasing its ability to capture weak sounds. It may even cause voice coil wear, shortening the microphone's lifespan. Utility Model Content

[0004] The purpose of this invention is to provide a dustproof microphone to address the problems mentioned in the background art.

[0005] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:

[0006] A dustproof microphone includes a base and a microphone body. A U-shaped frame is installed on the upper side of the base, and the microphone body is rotatably mounted on the U-shaped frame on both sides via a pivot. A dustproof mesh is provided on the upper side of the microphone body.

[0007] The dustproof net consists of a filter layer and an electrostatic adsorption layer. The electrostatic adsorption layer is located inside the filter layer. The filter layer is made of stainless steel mesh with a pore size of 50-200 micrometers. The electrostatic adsorption layer is made of electrostatic fiber filter material with a pore size of 1-10 micrometers.

[0008] The filter layer is detachably connected to the microphone body.

[0009] The bottom of the filter layer is provided with a first annular magnetic strip, the microphone body is provided with an annular slot that matches the first annular magnetic strip, and the bottom of the annular slot is provided with a second annular magnetic strip that matches the first annular magnetic strip.

[0010] A knob is connected to the end of the rotating shaft that extends out of the U-shaped frame.

[0011] The knob surface is provided with anti-slip texture.

[0012] The inner side of the U-shaped frame is provided with several sliding grooves distributed circumferentially around the pivot. A positioning block is slidably arranged in the sliding groove. A spring is provided between the positioning block and the bottom of the sliding groove. The end of the positioning block is hemispherical. The side wall of the microphone body is provided with a positioning groove corresponding to the positioning block.

[0013] A damping telescopic rod is provided between the base and the microphone body.

[0014] The dustproof mesh of this microphone adopts a double-layer structure of a filter layer and an electrostatic adsorption layer. The filter layer is made of stainless steel mesh or high-density plastic mesh, which is strong and not easily deformed. Its wavy structure increases the filtration area and reduces airflow resistance, effectively intercepting large particles. The electrostatic adsorption layer is made of electrostatic fiber filter material with permanent electrostatic charge loaded on the surface, which can efficiently capture tiny particles while allowing sound waves to pass through. It achieves good dustproof function while ensuring sound reception.

[0015] The filter layer of this invention is detachably connected to the microphone body. It is fixed by the adsorption of the first annular magnetic strip and the second annular magnetic strip in the annular slot. When disassembling, simply exert upward force to detach the magnetic strip. This design facilitates cleaning of the filter layer and exposes the electrostatic adsorption layer, making it easy for operators to use cotton swabs or other tools to wipe away impurities on its surface, preventing bacterial growth and keeping the microphone clean and hygienic. Attached Figure Description

[0016] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the structure of an embodiment of a dustproof microphone according to the present invention;

[0018] Figure 2 This is a cross-sectional structural diagram of an embodiment of a dustproof microphone according to the present invention;

[0019] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0020] Figure 4 for Figure 2 Enlarged structural diagram at point B;

[0021] Figure 5 This is a schematic diagram of the microphone body of this utility model.

[0022] The symbols for the main components are explained below:

[0023] Base 1, U-shaped frame 11, slide 12, positioning block 13, spring 14, microphone body 2, swivel 21, knob 211, dustproof mesh 22, filter layer 221, electrostatic adsorption layer 222, first annular magnetic strip 2211, annular slot 23, second annular magnetic strip 231, positioning groove 24, damping telescopic rod 3. Detailed Implementation

[0024] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0025] like Figure 1-5 As shown, a dustproof microphone of the present invention includes a base 1 and a microphone body 2. A U-shaped frame 11 is installed on the upper side of the base 1, and the microphone body 2 is rotatably mounted on the U-shaped frame 11 on both sides via a pivot 21. A dustproof net 22 is provided on the upper side of the microphone body 2.

[0026] The dustproof net 22 is composed of a filter layer 221 and an electrostatic adsorption layer 222. The electrostatic adsorption layer 22 is located inside the filter layer 221. The filter layer 221 is made of stainless steel mesh with a pore size of 50-200 micrometers. The electrostatic adsorption layer 222 is made of electrostatic fiber filter material with a pore size of 1-10 micrometers.

[0027] The filter layer 221 is detachably connected to the microphone body 2.

[0028] The microphone body 2 of this application is placed on a table via the base 1 for use. The two sides of the microphone body 2 are rotatably mounted on the U-shaped frame 11 via the pivot 21, which can realize the angle adjustment of the microphone body 2 for easy sound recording.

[0029] The dustproof mesh 22 of the microphone body 2 consists of a filter layer 221 and an electrostatic adsorption layer 222. It is located at the microphone inlet. The stainless steel mesh of the filter layer 221 has high strength and is not easily deformed. It can also intercept large particles of dust, hair, flying insects, etc., to prevent them from clogging the subsequent fine filter and extend the overall service life. The stainless steel mesh has a wavy structure, which increases the filtration area and reduces airflow resistance.

[0030] The electrostatic adsorption layer 222 is an electrostatic fiber filter material (such as polypropylene meltblown cloth). The surface of the filter material is loaded with permanent electrostatic charge to improve adsorption efficiency. It captures tiny particles, such as PM2.5 and pollen, through electrostatic adsorption, while allowing sound waves to pass through. The wavelength of the sound waves is much larger than the pore size of the filter screen.

[0031] The filter layer 221 can be removed from the microphone body 2 for easy cleaning, while exposing the electrostatic adsorption layer 222. Operators can use cotton swabs or other tools to wipe away impurities on the surface of the electrostatic adsorption layer 222, thus cleaning both layers and preventing bacterial growth.

[0032] Furthermore, the filter layer 22 can also be made of high-density plastic mesh.

[0033] The bottom of the filter layer 221 is provided with a first annular magnetic strip 2211, and the microphone body 2 is provided with an annular slot 23 that matches the first annular magnetic strip 2211. The bottom of the annular slot 23 is provided with a second annular magnetic strip 231 that matches the first annular magnetic strip 2211.

[0034] The filter layer 221 is inserted into the annular slot 23 through the first annular magnetic strip 2211 and is attracted to the second annular magnetic strip 231 to fix it to the microphone body 2. When removing the filter layer 221, simply apply upward force to separate the first annular magnetic strip 2211 from the second annular magnetic strip 231, and the filter layer 221 can be removed from the microphone body 2.

[0035] A knob 211 is connected to a U-shaped bracket 11 at the end of the rotating shaft 21; the knob design allows the operator to easily rotate the rotating shaft 21 to adjust the angle of the microphone body 2.

[0036] The surface of knob 211 is provided with anti-slip texture; the anti-slip texture can increase friction and make it easier for operators to use.

[0037] The inner side of the U-shaped frame 11 is provided with several sliding grooves 12 distributed circumferentially around the pivot 21. Positioning blocks 13 slide within the sliding grooves 12. A spring 14 is provided between the positioning block 13 and the bottom of the sliding groove 12. The end of the positioning block 13 is hemispherical. The side wall of the microphone body 2 is provided with a positioning groove 24 corresponding to the positioning block 13. In the initial state, under the elastic force of the spring 14, the end of the positioning block 13 extends into the positioning groove 24 to position the microphone body 2. When adjusting the angle of the microphone body 2, it is only necessary to rotate the microphone body 2. Since the end of the positioning block 13 is hemispherical, when the end of the positioning block 13 is aligned with the bottom of the sliding groove 12, the positioning block 13 will be positioned within the groove 24. After the side wall of the positioning groove 24 contacts, it can push the positioning block 13 to overcome the elastic force of the spring 14 and move into the slide groove 12, disengaging from the positioning groove 24. Until the positioning block 13 is aligned with the next positioning groove 24, the elastic force of the spring 14 can push it into the positioning groove 24. Therefore, the angle of the microphone body 2 can be positioned by the positioning block 13 being located in the positioning groove 24. When adjusting, it is only necessary to rotate it forcefully, which solves the problem that the existing microphone angle adjustment is mostly clamped by metal elastic fasteners, which is prone to stripping and failure to be fixed after long-term use, increasing replacement costs and making it inconvenient for users.

[0038] A damping telescopic rod 3 is provided between the base 1 and the microphone body 2; the damping telescopic rod 3 can be adjusted in height, thereby adjusting the height of the microphone body 2 for easy use.

[0039] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A dustproof microphone, comprising a base and a microphone body, characterized in that: A U-shaped frame is installed on the upper side of the base, and the microphone body is rotatably mounted on the U-shaped frame on both sides via a pivot. A dustproof net is provided on the upper side of the microphone body. The dustproof net consists of a filter layer and an electrostatic adsorption layer. The electrostatic adsorption layer is located inside the filter layer. The filter layer is made of stainless steel mesh with a pore size of 50-200 micrometers. The electrostatic adsorption layer is made of electrostatic fiber filter material with a pore size of 1-10 micrometers. The filter layer is detachably connected to the microphone body.

2. The dustproof microphone according to claim 1, characterized in that: The bottom of the filter layer is provided with a first annular magnetic strip, the microphone body is provided with an annular slot that matches the first annular magnetic strip, and the bottom of the annular slot is provided with a second annular magnetic strip that matches the first annular magnetic strip.

3. A dustproof microphone according to claim 1, characterized in that: A knob is connected to the end of the rotating shaft that extends out of the U-shaped frame.

4. A dustproof microphone according to claim 3, characterized in that: The knob surface is provided with anti-slip texture.

5. A dustproof microphone according to claim 1, characterized in that: The inner side of the U-shaped frame is provided with several sliding grooves distributed circumferentially around the pivot. A positioning block is slidably arranged in the sliding groove. A spring is provided between the positioning block and the bottom of the sliding groove. The end of the positioning block is hemispherical. The side wall of the microphone body is provided with a positioning groove corresponding to the positioning block.

6. A dustproof microphone according to claim 1, characterized in that: A damping telescopic rod is provided between the base and the microphone body.

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