Adjustable sub vacuum earplug

Abstract

The invention provides an adjustable sub vacuum earplug, and relates to the field of sound-proof devices. The earplug comprises a sound-proof shell, a speaking diaphragm and an air pump cylinder, wherein the sound-proof shell is internally provided with a cavity, a sound transmission channel is formed in the sound-proof shell, and the sound transmission channel is communicated with the cavity; the speaking diaphragm is packaged on the sound transmission path of the sound transmission channel; the air pump cylinder is communicated with the cavity and used for pumping or restoring partial air in the cavity. According to the adjustable sub vacuum earplug, the air density state in the earplug is adjusted easily, tension degree change of the speaking diaphragm is matched, and on one hand, the sound insulation and noise reducing effect of the earplug can be enhanced to protect hearing; one the other hand, the sound insulation and noise reducing effect of the earplug can be reduced to ensure the communication ability of a wearer, and a sound insulation state and a communication state are switched according to needs.

Description

technical field [0001] The invention relates to the field of sound insulation devices, in particular to an adjustable sub-vacuum earplug. Background technique [0002] The main function of earplugs is to reduce the intensity of noise transmitted to the outer ear by preventing the transmission of sound waves in a noisy environment, so as to achieve sound insulation and noise reduction and protect hearing. In many construction work environments, operators not only need to wear earplugs to protect their own hearing, but also need to have effective communication skills to ensure the smooth completion of work and avoid safety accidents. However, while traditional earplugs block noise, they also block the ability of operators to obtain communication information and safety information through hearing, that is, it is impossible to switch between the two states of sound insulation and communication. Contents of the invention [0003] The technical problem to be solved by the prese...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: to overcome the unsatisfactory sound insulation effect and the lack of communication function of the existing earplugs, and to provide an adjustable sub-vacuum earplug, which can adjust the air density state in the earplug easily and cooperate with the sound transmission diaphragm. The change of tightness can not only enhance the sound insulation and noise reduction effect of the earplugs for hearing protection, but also reduce the sound insulation and noise reduction effect of the earplugs to ensure the wearer's ability to communicate, and switch between the sound insulation and communication states as needed

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