Sound insulation earplug with cold compress effect

Abstract

The invention discloses a sound insulation earplug with the cold compress effect. The sound insulation earplug comprises a shell and a fixing layer, wherein a metal rod is arranged in the shell in a penetrating mode; the metal rod is sleeved with a thermal shrinkage layer; a circular groove matched with the thermal shrinkage layer in size is formed in the shell; a piezoelectric patch is glued to the side, close to the fixing layer, of the shell; the piezoelectric patch abuts against the thermal shrinkage layer; an air cavity is annularly formed in the outer side of the shell; the air cavity isconnected with the outside in a sealed mode through a buffer layer; the air cavity communicates with an air inlet channel; and the air inlet channel is connected with an air cylinder. The earplug hasthe advantages that the buffer layer is expanded through the inflation effect on the air cavity so as to adapt to ear canal calibers of different people, air is released through the characteristic that an intelligent polymer gel material is heated to open meshes during ear heating, and the ear canal is cooled, so that the problem that the ear canal is damaged due to long-time use is avoided.

Description

technical field [0001] The invention relates to the field of earplugs, in particular to a sound-insulating earplug with cold compress effect. Background technique [0002] Sound-proof earplugs (also known as noise-proof earplugs, sound-proof earplugs, anti-noise earplugs, and sleep earplugs) are generally made of silicone or low-pressure foam materials, and high-elastic polyester materials. After being inserted into the ear canal, it is in close contact with the external auditory canal to isolate sound from entering the middle ear and inner ear (ear drum), achieving the purpose of sound insulation, so that people can get a quiet rest or work and study environment. [0003] However, the sound-proof earplugs in the prior art cannot be adapted to everyone's ear canal due to the fixed size on the one hand, so that the ear canal is easily damaged or the sound insulation effect is not good, and long-term use of the earplugs will cause redness and swelling of the ear canal. Itchin...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems in the prior art that the long-term use of the plug will cause the ear canal to become hot, red and swollen, and it does not have the ability to adjust the size to meet the needs of different people, and proposes a sound-insulating earplug with a cold compress effect

Images