CN2151733Y - Ear plug for sound insulation - Google Patents
Ear plug for sound insulation Download PDFInfo
- Publication number
- CN2151733Y CN2151733Y CN 92240846 CN92240846U CN2151733Y CN 2151733 Y CN2151733 Y CN 2151733Y CN 92240846 CN92240846 CN 92240846 CN 92240846 U CN92240846 U CN 92240846U CN 2151733 Y CN2151733 Y CN 2151733Y
- Authority
- CN
- China
- Prior art keywords
- plug
- film
- sound
- earplug
- utility
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The utility model provides an ear plug for sound insulation. The ear plug for sound insulation is mainly characterized in that one end of a handle is sequentially fixed with three spherical plug films. The spherical surface top end of one plug film of the two adjacent plug films is tangential with the bottom plane of the other plug film. The other end of the handle is provided with a hollow chamber. The ear plug for sound insulation of the utility model can reduce the sound pressure level of noise and hear the conversation sound of the other party clearly.
Description
This utility model relates to sound arrester, particularly a kind of sound insulation earplug.
Influence and impression that sound produces the people, the time of depending on its frequency, sound pressure level and appearance is stable or desultory.People's ear is to high frequency acoustic sensing, unbearably ear-piercing, and insensitive to all-bottom sound, stands easily.It is not high that musical sound, people's Conversation Voice are generally all-bottom sound, sound pressure level yet, but the frequency of the reflection stack sound that each interface produced in machine noise and the workshop and sound pressure level are generally all than higher.For example 1000 of jade work shop's polishing departement hertz of its sound pressure levels of noise are up to 110 decibels, and other power as steel plant's smelting shop, textile mills is knitted the sound pressure level of noise in workshop etc. also up to 100～120 decibels.The long-term personnel that work under this noise conditions can cause auditory dysesthesia and deafness; Even cause headache, dizziness, tinnitus, insomnia, hypertension and heart disease.Therefore antinoise becomes key subjects in the safety in production., the scale of construction less noise source concentrated for equipment can be limited in sound in a certain scope with building enclosure, but the sound insulation to the noise source that equipment disperses, the scale of construction is big is just relatively more difficult, generally be with screen it to be sheltered from a part on the route of transmission of sound wave, earplug is exactly to place people's auditory meatus in order to completely cut off a kind of device of the sound of propagating at air.Though earplug can insulate against sound, it has not only blocked noise, has also blocked people's Conversation Voice simultaneously.Therefore, though the harm that the personnel of band earplug work have alleviated noise is not heard people's Conversation Voice and has been brought inconvenience for the contact in the work yet.
The purpose of this utility model will provide a kind of improved earplug exactly.This earplug can reduce the sound pressure level of noise, can clearly hear the other side's Conversation Voice again.
Task of the present utility model is finished as follows:
A kind of sound insulation earplug, have handle, plug film, its characteristics are that an end of described handle begins fixed order and hemispheric little plug film, middle plug film arranged, fill in film greatly, and the baseplane of the sphere top of a plug film and another plug film is tangent in adjacent two plug films, and the other end of described handle is provided with sky
The radius value of three hemisphere face shapes plug film of the present utility model can make the arrangement of three plug film outer rims have unified tapering.
Earplug of the present utility model is because handle one end is provided with three sphere shape plug films continuously, and concave surface is towards sound source, therefore the sound wave of the high frequency in the noise, high sound pressure level is filled in the film reflection greatly and is blocked, low frequency part in the noise can be walked around big plug film because of diffraction because wave length of sound is long, but the sound pressure level of its sound wave is then walked around three plug films continuously and decreased.After tested, sound pressure level be 90～110 decibels noise behind this utility model earplug, the sound pressure level that enters people's auditory meatus sound can be reduced to 60～70 decibels.Because the other end of this utility model earplug handle is provided with cavity, the Conversation Voice of low frequency can enter auditory meatus by earplug of the present utility model.So earplug of the present utility model is placed people's auditory meatus, both can reduce the sound pressure level of noise HFS, can clearly hear the other side's Conversation Voice again.Therefore earplug of the present utility model is compared with existing earplug, having can be by the advantage of low frequency Conversation Voice, its good effect is when wearing earplug of the present utility model and working in high-noise environment, not only can alleviate the harm of high-frequency noise to human body, and can know the low frequency Conversation Voice of hearing the other side, convenience is worked and is got in touch.
Below with reference to accompanying drawing this utility model is described in further detail.
Fig. 1 is front view, left view and the right view of this utility model earplug.
Fig. 2 is the longitudinal section of this utility model earplug.
Consult Fig. 1, Fig. 2, earplug handle 1 one end fixed order of the present utility model have little plug film 2, middle plug film 3, fill in film 4 greatly, the baseplane of the sphere top of one of them plug film and another plug film is tangent in the adjacent two plug films, and the radius value of three sphere shape plug films makes the outer rim of three plug films have unified tapering.It is raw material that earplug of the present utility model adopts heat vulcanized silicone rubber, and after hot press was once finalized the design, ripe again sulfuration formed.User needs only the effect that one of left and right Er Gesai can play damping noise medium-high frequency, high sound pressure level sound wave, and the sound pressure level of noise is reduced.Still can clearly hear simultaneously the other side's Conversation Voice.Earplug of the present utility model is easy to use in addition, wear soft comfortable advantage.
Claims (2)
1, a kind of sound insulation earplug, have handle, plug film, it is characterized in that from the top of handle (1) begin fixed order have hemisphere face shape little plug film (2), plug film (3), fill in film (4) greatly, in the adjacent two plug films, the baseplane of the sphere top of a plug film and another plug film is tangent, and the other end of handle (1) is provided with cavity (5).
2, earplug according to claim 1 is characterized in that the radius value of three hemisphere face shape plug films makes the arrangement of three plug film outer rims have unified tapering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92240846 CN2151733Y (en) | 1992-11-18 | 1992-11-18 | Ear plug for sound insulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92240846 CN2151733Y (en) | 1992-11-18 | 1992-11-18 | Ear plug for sound insulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2151733Y true CN2151733Y (en) | 1994-01-05 |
Family
ID=33781086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92240846 Expired - Fee Related CN2151733Y (en) | 1992-11-18 | 1992-11-18 | Ear plug for sound insulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2151733Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100553595C (en) * | 2006-03-03 | 2009-10-28 | 霍华德莱特实业有限责任公司 | The earplug of band catch |
-
1992
- 1992-11-18 CN CN 92240846 patent/CN2151733Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100553595C (en) * | 2006-03-03 | 2009-10-28 | 霍华德莱特实业有限责任公司 | The earplug of band catch |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20200177981A1 (en) | Earphone | |
| CN205946161U (en) | Wear size adjustable earphone speaker | |
| CN2151733Y (en) | Ear plug for sound insulation | |
| CN204578734U (en) | A kind of In-Ear Headphones | |
| CN207083210U (en) | A kind of wear-type bluetooth earphone of adjustable size | |
| CN204442630U (en) | A kind of wearable device with bone conduction earphone | |
| CN209731515U (en) | A kind of headphone protection sleeve | |
| CN206370939U (en) | A kind of portable blue-tooth earmuff | |
| CN210749829U (en) | Dormant ear shield | |
| CN208850007U (en) | A kind of wireless blue tooth clip-on type earphone | |
| CN212211332U (en) | Antibiotic antibacterial earphone cap who simply accords with human engineering and effectively protects eardrum | |
| CN215647287U (en) | AI intelligence bluetooth headset of function of making an uproar falls in area initiative | |
| CN220254656U (en) | Wearing comfortable earphone | |
| CN216820057U (en) | Combined Bluetooth headset | |
| CN2465432Y (en) | Ear cover for earphone | |
| CN219305006U (en) | Earmuff structure and earphone equipment | |
| CN2243878Y (en) | Noise-proof earplug | |
| CN220494368U (en) | Noise-reducing safety helmet | |
| CN215453216U (en) | Earphone capable of improving special attention | |
| CN201320245Y (en) | Ear plug | |
| CN209748768U (en) | 180-degree adjustable earphone | |
| CN205108049U (en) | Novel eye -shade with USB interface | |
| CN217509003U (en) | Novel silica gel earmuff | |
| CN215499523U (en) | Multifunctional earphone | |
| CN205693847U (en) | Novel ear-entering type earphone |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |