Sound amplifying device for preventing external dust and noise tone based on music teaching

Abstract

The invention provides a sound amplifying device for preventing external dust and noise tone quality based on music teaching. The sound amplifying device comprises a main body, a control groove, a filtering piece, a supporting piece, a lengthening piece and a shunting piece, the main body is of a cylindrical structure, and the interior of the main body is of an inclined structure. The main body comprises a sound amplifying piece and a connector; the inner edge of the main body is of an inclined structure, and the rear end of the main body is provided with the sound amplifying piece; the soundamplifying piece is made of wood, and the connector is arranged in the sound amplifying piece; the filtering piece is arranged at the front end of the device; therefore, during education; sound of a teacher can pass through the filter cloth in the filter piece; noisy sound of noise and dust can be filtered, so that the transmitted sound can be purer and better in tone quality, and the fixing pieceat the rear end of the filtering piece is used for being mounted in the control groove, so that the position of the filtering piece can be adjusted through the fixing piece, and the filtering piece can be used at a proper position.

Description

technical field [0001] The invention belongs to the technical field of sound amplifying equipment, and more specifically relates to a sound amplifying device for preventing external dust and noisy sound quality based on music teaching. Background technique [0002] When university music teachers teach in larger classrooms, they usually need to use amplifying devices to amplify the sound so that students can clearly hear the teacher's voice. [0003] For example, the application number: CN201821002054.1 relates to a loudspeaker for music teaching, including a wall, the middle section of the left surface of the wall is fixedly equipped with a connecting device, the left end of the connecting device is fixedly installed with an organism, and the inner part of the body A filter plate is fixedly installed on the left end of the cavity wall, and a circular ring is sleeved on the right end of the outer surface of the body, and the upper and lower ends of the right surface of the ci...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above-mentioned technical problems, the present invention provides a sound amplifying device based on music teaching to prevent external dust and noisy sound quality, so as to solve the problem that the existing music teaching amplifying device cannot isolate the noisy sound of external dust and sound transmission. It is not pure enough when it comes out, and the distance of sound isolation cannot be adjusted according to the demand. Moreover, when the existing music teaching loudspeaker device needs to transmit the sound further, it cannot be adjusted, and the use is limited.

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