A kind of loudspeaker equipment with anti-jamming function

Abstract

The invention relates to a sound amplification device with an anti-interference function, which comprises a main body and a connecting rod, a sound amplification cover is fixed at the middle part in the main body, the main body is fixedly connected with the sound amplification cover, and a cross rod is mounted at the top end of the sound amplification cover. The teacher-used anti-interference sound amplification device with the standby battery is provided with the standby battery; the bolt groove moves between the frame and the infrared emitter; therefore, the infrared emitter in the frame canbe disassembled through the bolt grooves. replacement treatment can be carried out on the device; parts in the main body and the sound amplification cover can be maintained; the infrared emitter is arranged through the sound amplification cover; the infrared light wave carrier can not penetrate through the wall, confidentiality and easy isolation are achieved innate, the problem of frequency crosstalk between adjacent classrooms can be effectively solved, meanwhile, infrared light is safe and radiation-free light wave, an infrared emitting part is beneficial and harmless to the human body, the emitter adopts a lithium ion battery, and the battery does not need to be replaced frequently.

Description

technical field [0001] The invention relates to the technical field of sound amplification equipment, in particular to a sound amplification equipment with an anti-interference function. Background technique [0002] For sound reinforcement equipment, the quality of the speaker is very important, so users must understand the technical characteristics of the speaker when choosing a sound reinforcement device, so that they can have a good understanding of the sound and choose a good sound reinforcement Equipment, and can improve the teacher's teaching quality, so as to reduce the teacher's teaching pressure, and the traditional loudspeaker generally includes at least the head of the appropriate audio converter and the longitudinal direction around the loudspeaker from the head of the loudspeaker An elongated handle or rod or post with an axis extending, but its signal interference is relatively large, so it needs to be improved in structure. [0003] In the prior art, teacher...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of loudspeaker equipment with anti-interference function, to solve the above-mentioned background technology in the prior art, when carrying out education work, it is easy to be affected by the sound waves of the teaching environment, electromagnetic waves (such as mobile phones, walkie-talkies, Mobile phone base stations, etc.), which will affect the progress of educational courses, and it is easy to be damaged by collision when carrying it, and it is easy to damage its internal structure. Problems that are likely to affect the health of teachers

Images