CN2853031Y

CN2853031Y - Noise-proof ear plugs

Info

Publication number: CN2853031Y
Application number: CN 200520125069
Authority: CN
Inventors: 李翠香; 孙红云; 周萍; 李秀芬
Original assignee: 李翠香
Priority date: 2005-11-30
Filing date: 2005-11-30
Publication date: 2007-01-03
Anticipated expiration: 2015-11-30

Abstract

The utility model discloses a noise-proof hearing-aid earphone, which comprises an earphone housing 1 and an earphone drop 2. The earphone housing 1 comprises a cylindrical plug and a tube-like body. A sound filtering screen cover 3 is attached to the inner side of the external port of the tube-like body in earphone housing 1. An upper silencing pack 4 is fixed in the tube-like body in earphone housing 1 via a cross support 7. A soft sleeve 5 is placed over the outer face of the cylindrical plug head at the front end of the earphone housing 1. A sound conductive throughhole 6 is provided in the cylindrical plug head at the front end of the earphone housing 1. As different sound filtering devices are arranged at the port and in the inner chamber of the earphone housing, this noise-proof hearing-aid earphone filtrates low frequency dull noise below 3000Hz and acute noise above 5000Hz and conveys the normal voice to the human auditory canal via the axial sound conductive throughhole, which prevents the noise from hurting the human body, allows normal voice communication and provides comfortable wear.

Description

Its anti-noise hearing aid earplug

Technical field

This utility model relates to a kind of ear plug, and particularly a kind of noise that can prevent can help to catch its anti-noise hearing aid earplug of talk sound again.

Background technology

Noise pollution is not only influences one of able-bodied important polluter of people, but also can have influence on normal communication in the work.The workman of the serious occasion work of industry noise pollution such as weaving, machinery, iron and steel, mining, building stones processing, as not solving the noise pollution problem well, will cause noise tinnitus for for a long time, severe patient can cause the generation of noise deafness.The workpeople adopts the cotton-wool ear plug to prevent the harm of noise to human body more for a long time, though this method is simple, but its weak point is that it is blocked in all sound outside the ear, makes the staff when preventing noise pollution, has also influenced the normal communication in the work.

Summary of the invention

The purpose of this utility model is to provide a kind of above-mentioned deficiency of the prior art that overcomes, and makes it can prevent noise pollution, does not influence its anti-noise hearing aid earplug of normal communication again.

For reaching above purpose, the technical scheme that this utility model adopted is: this its anti-noise hearing aid earplug, hang down by earplug housing and earplug and to constitute, the earplug housing divides column chock plug and cylindrical body two parts to form, its appearance matches with the shape of wearing external auditory meatus of descendant and auricle, the column chock plug of its front end inserts in the auditory meatus, the cylindrical body downside of its rear end is provided with earplug and hangs down, after wearing vertical the filling in of earplug can be prevented in the ear nest that earplug from coming off, it is characterized in that at the cylindrical body collar extension of earplug housing along the fixing top sound filtering screen cover of interior bonding, in the cylindrical body of earplug housing, fix upward noise reduction bag by " ten " font bracing frame, at the sheathed soft overcoat in the front end column chock plug outside of earplug housing, establish axial leading note through hole in the column chock plug of earplug housing front end.This utility model is also implemented by following measure: described filter sound square is a spirogyrate synthetic rubber spongy body, the many micropores of interior cloth, and be advisable outside earplug the dull noise below the 3000HZ can be intercepted in the aperture of micropore, and this material is a known technology; Described noise reduction bag is an oblate spheroid, and skin is the polyester film bag, and polyester film is wrapped and also is with many micropores, is surrounded by sound-absorbing material in the polyester film bag, and the aperture of its micropore and sound-absorbing material are advisable with the high pike nosie that can eliminate more than the 5000HZ, and this material also is a known technology; Described soft overcoat is weaved cotton cloth for the bamboo cotton fiber mixes, its weft yarn adopts the 1.5DX38mm bamboo fiber garn, this kind bamboo fiber garn has intensity height, little, the ganoid advantage of elasticity, and have antibiotic, deodorization, anti-ultraviolet property and skin is had the heat and moisture preserving function, the footpath yarn is a 9.7tex combed cotton silvalin, and this kind fabric can directly buy in this locality weaving group.

The beneficial effects of the utility model are: owing to added different filter mixers at the oral area of earplug housing respectively with inner chamber, and be provided with the micropore in different apertures, so can be according to the difference of filter sound square and noise reduction bag surface micropore size, dull noise of low frequency and the above high sharp noise of 5000HZ that difference filter 23 000HZ is following, and can make normal voice (3000-5000HZ frequency range) send into human antrum auris through axial leading note through hole, both can prevent the harm of noise on human body, can carry out normal speech exchange again, and wear comfortable.

Description of drawings

Fig. 1 cuts open sketch map for this utility model structure master office of looking.

Fig. 2 is that this utility model is along axis section cross-sectional schematic.

The specific embodiment

Make this utility model with reference to accompanying drawing 1,2.This its anti-noise hearing aid earplug, constitute by earplug housing 1 and earplug vertical 2,1 fen column chock plug of earplug housing and cylindrical body two parts are formed, its appearance matches with the shape of wearing external auditory meatus of descendant and auricle, the column chock plug of its front end inserts in the auditory meatus, the cylindrical body downside of its rear end is provided with earplug and hangs down 2, at earplug housing 1 cylindrical body collar extension along the fixing top sound filtering screen cover 3 of interior bonding, in the cylindrical body of earplug housing 1, fix upward noise reduction bags 4 by " ten " font bracing frame 7, at the sheathed soft overcoat 5 in the front end column chock plug outside of earplug housing 1, in the column chock plug of earplug housing 1 front end, establish axial leading note through hole 6.Described filter sound square 3 is a spirogyrate synthetic rubber spongy body, the many micropores of interior cloth, and be advisable outside earplug the dull noise below the 3000HZ can be intercepted in the aperture of micropore; Described noise reduction bag 4 is an oblate spheroid, and skin is polyester film bag 4a, also is with many micropores on the polyester film bag 4a, is surrounded by sound-absorbing material 4b in the polyester film bag 4a, and the aperture of its micropore and sound-absorbing material are advisable with the high pike nosie that can eliminate more than the 5000HZ; Described soft overcoat 5 is weaved cotton cloth for the bamboo cotton fiber mixes; Described axial leading note through hole 6 is connected with the space of filtering between sound square 3 and the noise reduction bag 4.

Claims

1, a kind of its anti-noise hearing aid earplug, constitute by earplug housing (1) and earplug vertical (2), earplug housing (1) divides column chock plug and cylindrical body two parts to form, the cylindrical body downside of its rear end is provided with earplug vertical (2), it is characterized in that at earplug housing (1) cylindrical body collar extension along the fixing top sound filtering screen cover (3) of interior bonding, in the cylindrical body of earplug housing (1), fix upward noise reduction bag (4) by " ten " font bracing frame (7), at the front end column chock plug outside of earplug housing (1) sheathed soft overcoat (5), in the column chock plug of earplug housing (1) front end, establish axial leading note through hole (6).

2, its anti-noise hearing aid earplug according to claim 1 is characterized in that described filter sound square (3) is a spirogyrate synthetic rubber spongy body; Described noise reduction bag (4) is an oblate spheroid, and skin is polyester film bag (4a), is surrounded by sound-absorbing material (4b) in the polyester film bag (4a); Described soft overcoat (5) is weaved cotton cloth for the bamboo cotton fiber mixes; Described axial leading note through hole (6) is connected with the space of filtering between sound square (3) and the noise reduction bag (4).