CN2870792Y - High and low noise filtering earphone - Google Patents

High and low noise filtering earphone Download PDF

Info

Publication number
CN2870792Y
CN2870792Y CN 200620081134 CN200620081134U CN2870792Y CN 2870792 Y CN2870792 Y CN 2870792Y CN 200620081134 CN200620081134 CN 200620081134 CN 200620081134 U CN200620081134 U CN 200620081134U CN 2870792 Y CN2870792 Y CN 2870792Y
Authority
CN
China
Prior art keywords
ear
convex
low noise
chock plug
noise
Prior art date
Application number
CN 200620081134
Other languages
Chinese (zh)
Inventor
张民
李强
Original Assignee
张民
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 张民 filed Critical 张民
Priority to CN 200620081134 priority Critical patent/CN2870792Y/en
Application granted granted Critical
Publication of CN2870792Y publication Critical patent/CN2870792Y/en

Links

Abstract

The utility model discloses a high and low noise-filtered anti-noise ear muff, which comprises a convex shell1, a semicircle with the head fixed 2, a ring groove 5 installed on the inside of the opening edge of the convex shell 1, an airbag 6 being inserted into the ring groove5 and covered outside the ears, an endo-convex ear fossa tamper 7 being fixed inside the ring groove through rotating thread, a synthetic rubber sponge sound-filter shield 8 being inserted in the wall of the convex external shell 1, a flat spherical polyester membrane sac 9 being clamped between the endo-convex ear fossa tamper 7 and the synthetic rubber sponge sound-filter shield 8, silencers body 10 being inside the flat spherical polyester membrane sac 9. The high and low noise-filtered anti-noise ear muff has the advantages of being simple in structure, convenient to use, and comfortable to wear so as to be used widly for workers protection in textile, machineryand steel industry, because the ear muff is not only able to filter high and low noise but also to carry on normal language exchange, and furthermore not to press or injure auditory canal.

Description

High and low noise-filtering formula preventing noise ear cover

Technical field

This utility model relates to a kind of improvement of preventing noise ear cover formula ear plug, and specifically a kind of high and low noise-filtering formula preventing noise ear cover is applicable to long-term protection operation field labourers such as weaving, machinery, iron and steel, mining, building stones processing.

Background technology

For weaving for a long time, machinery, iron and steel, mining, the labourer in operation fields such as building stones processing, noise is one of the most serious public hazards, be not only the physical and mental health that influences labourer, but also directly have influence on normal communication, even may cause noise tinnitus or deafness to labourer, therefore, in order to prevent the harm of noise, protection labourer's physical and mental health, labourer is often by wearing sound insulation earplug or earmuff, the vibration that noise source is caused can not propagate on the tympanum by auditory meatus, and used deadener is strong resilience colloid or weak resilience colloid, as rubber bodies or plastic body etc., make solid column, the deadener plug in auditory meatus, is closely contacted with auditory meatus, form puigging; The employing noise reduction earmuff that also has is made of the external cover layer of plastic film of earmuff, with industrial felt as quieter material.The existing weak point of these earplugs or earmuff is: the one, and erasure effect is good inadequately, especially the noise of high-decibel or ear-piercing erasure effect is not in a shrill voice often reached noiseproof purpose; The 2nd, fill in auditory meatus after, time has been grown, auditory meatus there is certain damage, its sound wave still can import tympanum into solid cylinder, ear drum membrane is still had certain harm, the solid earplug that common rubber, plastics etc. are made still can not play the effect of complete sound insulation, protection ear drum membrane, wears earmuff, and ear is also produced constriction; The 3rd, when wearing ear can itch, stuffy, uncomfortable; The 4th, no matter what use at present is earplug or earmuff, in the noiseproof while, also the sound of normal communication has been intercepted, and has influenced normal communication.

Summary of the invention

The purpose of this utility model is to provide a kind of deficiency that overcomes above technology, thereby provide a kind of can the high and low noise of filtering, normal voice is passed through, and in wearing to the high and low noise-filtering formula preventing noise ear cover of auditory meatus and ear's not damaged, no discomfort.

For reaching above purpose, the technical scheme that this utility model adopted is: this height, low noise filtering formula preventing noise ear cover, by the spirogyrate shell, around head fixedly semicircular ring constitute, bolt hole is established at the outer lug top of spirogyrate shell, bolt pass around head fixedly the slide opening of semicircular ring end be rotated in the bolt hole internal fixation, by bolt around head fixedly the position adjustments of semicircular ring end slide opening around the fixing elasticity of semicircular ring of head, it is characterized in that the mouth of convex hull is established annular recess along the inboard outside, be embedded in ring-shaped gasbag at annular recess, the internal diameter of ring-shaped gasbag is greater than auricle, make ring-shaped gasbag be buckled in the ear outside, pass through gas-flow closure, can alleviate in wearing pressure and sense of discomfort to ear, convex ear nest chock plug in the inboard of annular recess is fixed by screw thread rotation, the inboard of convex hull embeds synthetic rubber sponge filter sound cover outside, relevant open source information shows, erasure effect is relevant with material aperture and thickness, when making, the micropore size of synthetic rubber sponge filter sound cover and thickness are being advisable by the dull noise below the filtering 3000HZ, its thickness can be made as 5-10mm, between interior convex ear nest chock plug and synthetic rubber sponge filter sound cover, accompany oblate spheroid polyester membrane vesicle, in oblate spheroid polyester membrane vesicle, be surrounded by sound-absorptive object.This utility model is also implemented by following measure: convex ear nest chock plug is that elastic rubber material is made in described, center at interior convex ear nest chock plug is provided with through hole, and the height of interior convex ear nest chock plug is 4-8mm, and the end is a round end, only place in the ear nest, do not insert auditory meatus; Reach sound-absorptive object on the wall of oblate spheroid polyester membrane vesicle and also have many micropores, its aperture and thickness are being advisable by the high pike nosie more than the filtering 5000HZ, sound-absorptive object can adopt silicate fiber to make, the erasure effect of this material is better than industrial felt, erasure effect can be increased to 40 decibels by original 20 decibels, do not influence normal communication simultaneously; Described is that elastic steel sheet is made around a retainer ring, and its width is 2-3cm; Also can establish reticulated cell on the convex hull outside, to alleviate the weight of convex hull.

The beneficial effects of the utility model are: simple in structure, easy to use, can leach high and low noise, and normal communication be can carry out again, and auditory meatus and ear, comfortable wearing do not oppressed or damage.

Description of drawings

Fig. 1 looks sketch map for this utility model structure master.

Fig. 2 analyses and observe enlarged diagram for this utility model along A-A.

The specific embodiment

Make this utility model with reference to accompanying drawing 1,2.This height, low noise filtering formula preventing noise ear cover, by spirogyrate shell 1, around head fixedly semicircular ring 2 constitute, bolt hole is established at the outer lug top of spirogyrate shell 1, bolt 3 pass around head fixedly the slide opening 4 of semicircular ring 2 ends be rotated in the bolt hole internal fixation, the mouth of convex hull 1 is established annular recess 5 along the inboard outside, be embedded in ring-shaped gasbag 6 at annular recess 5, the internal diameter of ring-shaped gasbag 6 is greater than auricle, pass through gas-flow closure, can alleviate in wearing pressure and sense of discomfort to ear, convex ear nest chock plug 7 in the inboard of annular recess 5 is fixed by screw thread rotation, the inboard of convex hull 1 embeds synthetic rubber sponge filter sound cover 8 outside, the micropore size of synthetic rubber sponge filter sound cover 8 and thickness are being advisable by the dull noise below the filtering 3000HZ, its thickness can be made as 5-10mm, between interior convex ear nest chock plug 7 and synthetic rubber sponge filter sound cover 8, accompany oblate spheroid polyester membrane vesicle 9, in oblate spheroid polyester membrane vesicle 9, be surrounded by sound-absorptive object 10.Convex ear nest chock plug 7 is made for elastic rubber material in described, is provided with through hole 11 at the center of interior convex ear nest chock plug 7, and the height of interior convex ear nest chock plug 7 is 4-8mm, and the end is a round end, only places in the ear nest, does not insert auditory meatus; Reach sound-absorptive object 10 on the wall of oblate spheroid polyester membrane vesicle 9 and also have many micropores, its aperture and thickness are being advisable by the high pike nosie more than the filtering 5000HZ, sound-absorptive object 10 can adopt silicate fiber to make, the erasure effect of this material is better than industrial felt, erasure effect can be increased to 40 decibels by original 20 decibels, do not influence normal communication simultaneously; Describedly be that around a retainer ring 2 elastic steel sheet makes, its width is 2-3cm; Also establish reticulated cell on the outer convex hull of convex hull 1 outside.

Claims (2)

1, a kind of high, low noise filtering formula preventing noise ear cover, by spirogyrate shell (1), around head fixedly semicircular ring (2) constitute, bolt hole is established at the outer lug top of spirogyrate shell (1), bolt (3) pass around head fixedly the slide opening (4) of semicircular ring (2) end be rotated in the bolt hole internal fixation, it is characterized in that the mouth of convex hull (1) is established annular recess (5) along the inboard outside, be embedded in ring-shaped gasbag (6) at annular recess (5), convex ear nest chock plug (7) in the inboard of annular recess (5) is fixed upward by screw thread rotation, the inboard of convex hull (1) embeds synthetic rubber sponge filter sound cover (8) outside, between interior convex ear nest chock plug (7) and synthetic rubber sponge filter sound cover (8), accompany oblate spheroid polyester membrane vesicle (9), in oblate spheroid polyester membrane vesicle (9), be surrounded by sound-absorptive object (10).
2, high and low noise-filtering formula preventing noise ear cover according to claim 1 is characterized in that being provided with through hole (11) at the center of interior convex ear nest chock plug (7), and the height of interior convex ear nest chock plug (7) is 4-8mm.
CN 200620081134 2006-02-24 2006-02-24 High and low noise filtering earphone CN2870792Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200620081134 CN2870792Y (en) 2006-02-24 2006-02-24 High and low noise filtering earphone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200620081134 CN2870792Y (en) 2006-02-24 2006-02-24 High and low noise filtering earphone

Publications (1)

Publication Number Publication Date
CN2870792Y true CN2870792Y (en) 2007-02-21

Family

ID=37739142

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200620081134 CN2870792Y (en) 2006-02-24 2006-02-24 High and low noise filtering earphone

Country Status (1)

Country Link
CN (1) CN2870792Y (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102711684A (en) * 2009-12-24 2012-10-03 索纳麦克斯科技股份有限公司 In-ear device with selectable frequency response
CN103431945A (en) * 2013-09-11 2013-12-11 巢雨 Novel noise-proof earmuff
CN108778202A (en) * 2016-03-29 2018-11-09 富士胶片株式会社 Earmuff

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102711684A (en) * 2009-12-24 2012-10-03 索纳麦克斯科技股份有限公司 In-ear device with selectable frequency response
CN102711684B (en) * 2009-12-24 2014-04-09 索纳麦克斯科技股份有限公司 In-ear device with selectable frequency response
CN103431945A (en) * 2013-09-11 2013-12-11 巢雨 Novel noise-proof earmuff
CN108778202A (en) * 2016-03-29 2018-11-09 富士胶片株式会社 Earmuff

Similar Documents

Publication Publication Date Title
CN108462913B (en) Flexible earphone housing and method of manufacturing a flexible earphone housing
JP2018186557A (en) Tragus lower ear unit
US9094756B2 (en) Invertible ear tips for an ear piece
US20150043767A1 (en) Ergonomic earpiece
US8705787B2 (en) Custom in-ear headset
US9539147B2 (en) Method and device for acoustic sealing and occlusion effect mitigation
US7116793B2 (en) Ear pad, and earphone with the pad
RU2252495C2 (en) Earphone
JP2571128B2 (en) Headphone
TWI222862B (en) Earmold for improved retention of coupled device
US20120057740A1 (en) Security and protection device for an ear-mounted audio amplifier or telecommunication instrument
ES2558084T3 (en) enhanced headset
US3047089A (en) Ear plugs
CN102291644B (en) Adjustable earphone and earphone set
EP1640972A1 (en) System and method for separation of a users voice from ambient sound
EP2254345A1 (en) Bone conduction speaker and listening device using same
KR20120006071A (en) Earpiece system
US20090245530A1 (en) Method and Device for Acoustic Sealing
EP3127347B1 (en) Earpieces having flexible flaps
JP3125843U (en) Earphone
KR101545087B1 (en) Earplug and earplug set having the same
NZ585567A (en) Apparatus and Method for Sound Enhancement With Ambient Sound Suppression
CN102067625A (en) Headset for ear muff type bilateral speech
EP1874080A3 (en) Earphones
US20180310089A1 (en) Earphone cover

Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee
C19 Lapse of patent right due to non-payment of the annual fee