MICROPHONE SOUND CUNNING DEVICE

Description

[0001] Field of technology to which the utility model belongs

[0002] The utility model relates to sound suppression devices, and more specifically, to a device for mechanically suppressing microphone sound.

[0003] Technology Level

[0004] The prior art discloses the use of sound-absorbing structures (RU 2791521 C1, 10.03.2023), the operating principle of which is based on the selection of a sound-absorbing material and the shape of the structure itself (the presence of recesses, perforations, walls and cavities).

[0005] However, such structures are capable of providing only minor sound absorption (as stated in RU 2791521, about 30%).

[0006] The prototype solution described in SU 86224 A1, 10.10.1950, was chosen. It includes a soundproof enclosure housing a sound-emitting device. According to SU 86224 A1, this enclosure is capable of protecting the surrounding area from sound waves emitted by the sound-emitting device.

[0007] However, document SU 86224 A1 does not provide characteristics or design features of the casing that confirm its ability to perform soundproofing functions.

[0008] The objective of the utility model is to develop a sound suppression device with increased efficiency.

[0009] The essence of the utility model

[0010] The technical result of the utility model consists in suppressing the sound of the microphone due to the rarefaction of air provided inside the hollow wall of the housing.

[0011] The utility model is based on a well-known physical principle, according to which sound does not propagate in a vacuum.

[0012] A microphone suppression device comprises a cylindrical housing, the lower portion of which comprises a mounting base adapted for attachment to a microphone, a middle portion comprising an air chamber, and a membrane secured to the upper portion of the housing using a threaded fastener. The housing walls are hollow, and within the area of ​​the mounting base, an air valve compartment is located within the hollow wall. The air valve compartment comprises a spring retainer, a spring, a valve, and an outlet. A cavity is formed within the walls of the housing in the area of ​​the air chamber. The membrane is configured to act upon the cavity such that, when pressed on the membrane, the air valve spring is compressed, opening the valve to allow air to exit the cavity through the valve and outlet, creating a vacuum within the cavity.

[0013] Additionally, the body walls can be made with thickenings to increase their strength.

[0014] Brief description of drawings

[0015] The utility model will now be described by means of illustrative examples that do not limit the scope or essence of the claimed solution, with reference to the accompanying drawings, which schematically show:

[0016] Fig. 1 - design of microphone sound suppression device;

[0017] Fig. 2 - microphone with a sound suppression device installed on it.

[0018] Implementation of a utility model

[0019] Fig. 1 shows the design of a microphone sound suppression device in accordance with the claimed solution.

[0020] A microphone sound suppression device comprises a cylindrical housing, the lower portion of which is a mounting base 1 adapted to be attached to a microphone 11, the middle portion of which includes an air chamber 2, and a membrane 5 secured in the upper portion of the housing by a retainer 10 (shown removed in the drawing) with a threaded connection. The walls of the housing are hollow, and in the area of ​​the mounting base 1, within the hollow wall, an air valve compartment 3 is located, including a spring retainer 7, a spring 8, a valve 9, and an outlet 4.

[0021] In the area of ​​the air chamber, a cavity 6 is formed in the walls of the housing. The membrane 5 is designed with the possibility of such an effect on said cavity 6 that, when pressing on the membrane 5, the spring 8 of the air valve 3 is compressed, opening the valve 9 for the release of air from the cavity 6 through the valve 9 and the outlet opening 4 to the outside, creating a vacuum inside the cavity 6.

[0022] Additionally, the housing walls can be made with thickenings, not shown in the drawings, to increase their strength and prevent deformation.

[0023] Fig. 2 shows a microphone sound suppression device attached to the microphone 11.

[0024] It should be noted that the air valve 3 is designed in such a way that, thanks to the spring 8, it allows air to exit from the cavity 6 to the outside through the valve 9 and the opening 4 when the spring 8 is compressed. In the stationary position of the spring 8, the valve 9 is closed, preventing air from entering back into the cavity 6.

[0025] The membrane retainer 10 (5) is a cover with a hole for the membrane (5) that holds the membrane (5) to the housing. The retainer 10 is secured to the housing using a threaded connection.

[0026] The thickness of the housing walls is not less than 1 mm. The thickness of the cavity 6 between the housing walls is not less than 3 mm.

[0027] Working principle.

[0028] The microphone sound suppressor is attached to the microphone 11 by the fastening part 1.

[0029] When membrane 5 is pressed, air pressure is created, which compresses spring 8, opening valve 9. This opens the air path out through outlet 4. Air exits cavity 6 through valve 9 and outlet 4. When membrane 5 is released, valve 9 closes, preventing air from returning into cavity 6. Consequently, a vacuum is created inside cavity 6.

[0030] Microphone 11 is placed inside air chamber 2, which is surrounded by cavity 6. The suppression of the microphone sound is achieved due to the vacuum in the air created inside cavity 6, which, in accordance with the laws of physics, prevents the propagation of the sound wave.

[0031] Thus, the achievement of the declared technical result is ensured.

[0032] Due to its simple design and high efficiency, the claimed solution can find wide application in a wide variety of technical fields. Therefore, the claimed utility model is industrially applicable.

Claims

1. A microphone sound suppression device comprising a cylindrical housing, characterized in that the lower part of the housing is a mounting base 1 configured to be attached to a microphone, the middle part includes an air chamber 2, and in the upper part of the housing a membrane 5 is secured using a retainer 10 with a threaded connection, the walls of the housing are made hollow and in the area of ​​the mounting base 1, inside the hollow wall, an air valve compartment 3 is located, including a spring retainer 7, a spring 8, a valve 9 and an outlet 4, and in the area of ​​the air chamber 2, a cavity 6 is formed in the walls of the housing, wherein the membrane 5 is configured to act on the said cavity 6 in such a way that when the membrane 5 is pressed, the spring 8 of the air valve 3 is compressed, opening the valve 9 to release air from the cavity 6 through the valve 9 and the outlet 4 to the outside, creating a vacuum inside the cavity 6.

2. A microphone sound suppression device according to claim 1, characterized in that the walls of the housing are made with thickenings to increase their strength and prevent deformation.

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