CN2650740Y - Noise-resistant soundproofing ear muffs - Google Patents
Noise-resistant soundproofing ear muffs Download PDFInfo
- Publication number
- CN2650740Y CN2650740Y CN 200320100296 CN200320100296U CN2650740Y CN 2650740 Y CN2650740 Y CN 2650740Y CN 200320100296 CN200320100296 CN 200320100296 CN 200320100296 U CN200320100296 U CN 200320100296U CN 2650740 Y CN2650740 Y CN 2650740Y
- Authority
- CN
- China
- Prior art keywords
- earmuff
- headring
- head band
- layer
- ear muff
- 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
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- Helmets And Other Head Coverings (AREA)
Abstract
An anti-noise insulating ear muff is provided, which mainly comprises an inner ear muff layer and an outer ear muff layer, inner and outer ear pads, an upper head band, and a lower head band, wherein, the upper head band is connected to the axle center of the outer ear muff layer. The outer ear muff layer is connected to a lower head band fixing frame via two layers of fixing shafts below the axial line of the outer ear muff layer, and the lower head band fixing frame is connected to the lower head band; under the pressing force of the upper head band and the pulling force of the lower head band, the ear muff attaches to the ear tightly, and therefore can reduce noise leakage and improve sound insulation effect without increasing the pressure of the head bands.
Description
Affiliated technical field this utility model relates to a kind of antinoise sound insulation earmuff, is particularly useful for the sound insulation earmuff in the lasting high-noise environment.
Background technology is present, and the sound insulation earmuff that generally is used for noise protection mostly is made up of earmuff and headring, mainly is that case material by earmuff comes sound insulation and reaches the purpose of protection ear.But because jawbone place, people's ear below is irregularly shaped, annular earmuff and ear are fitted not tight, therefore can cause sound leakage, and the noise resisting ability of earmuff is reduced greatly.Though existing product has adopted the way that big pressure headring forces belt ear pad of compressing and ear to be fitted has been installed on the earmuff, but wear this earmuff for a long time and can bear big pressure because of ears, unfavorable to user health, especially in continuing high-noise environment, use, as occasions such as caterpillar, helicopter, cabins, naval vessel, result of use is all undesirable.In order to overcome the deficiency that exists in the existing sound insulation earmuff, the purpose of this utility model provides a kind of sound insulation earmuff, its effectively sound insulation, and earmuff and ear are fitted closely, reach good soundproof effect.
The summary of the invention the purpose of this utility model can realize by following measure: the antinoise sound insulation earmuff that is made of earmuff, headring, ear pad, earmuff is made up of internal layer, outer earmuff respectively, be filled with elastomeric material between the ectonexine earmuff, the internal layer ear pad is housed on the end face of internal layer earmuff, the upper strata headring is equipped with at place, the outside axle center of outer earmuff, lower floor's headring fixed mount is equipped with in the axis below of outer earmuff, is connected with lower floor's headring on lower floor's fixed mount.Outer earmuff is subjected to the effect of upper layer header ring compression and lower floor's headring pulling force, make it contact with people's ear, and outer earmuff slopes inwardly below people's ear, and changes the angle of inclination of earmuff with the variation of pulling force, has guaranteed to fit tightly below people's ear and between the outer ear pad; Internal layer earmuff end nipple makes the internal layer ear pad and the whole driving fit of people's ear of dish shape sealing ring formation for the sound insulation earmuff.Because be that elasticity connects between the inside and outside two-layer earmuff, under external force, interior earmuff flexible adjustment and pleasant contact surface reach the effect that fits tightly with people's ear place, prevent the leakage of noise.
Description of drawings further specifies this utility model in conjunction with the accompanying drawings:
Fig. 1 is a partial sectional view of the present utility model;
Fig. 2 is a side view of the present utility model
Primary structure is among the figure: 1-internal layer earmuff, the outer earmuff of 2-, 3-internal layer ear pad, the outer ear pad of 4-, 5-upper strata headring, 6-lower floor headring, 7-upper strata headring fixed axis, 8-lower floor headring fixed mount, 9-elastomeric material, 10-protective layer, 11-fixed axis.
The specific embodiment is in Fig. 1, and earmuff is respectively by internal layer earmuff (1), and outer earmuff (2) constitutes.The ectonexine earmuff can be filled with elastomeric material (9) with engineering plastics injection mo(u)lding respectively between them, the bonding one-tenth elastomeric layer of the available foamed materials of elastomeric material (9) is so that earmuff can change according to the profile elasticity of people's ear.Internal layer ear pad (3) is housed on the end face of internal layer earmuff (1); on the end face of outer earmuff (2) outer ear pad (4) is housed; outer ear pad (4) is the sealing ring that goes in ring; available outsourcing leather system protective layer; internal layer ear pad (3) is made the sealing ring at butterfly-shaped edge with soft rubber, inside and outside ear pad (3,4) respectively with inside and outside earmuff (1,2) strong bond.Upper strata headring (5) is equipped with at place, outside axle center at outer earmuff (2), and upper strata headring (5) adopts the flexible strip material, is connected with outer earmuff (2) by upper strata headring fixed axis (7).Lower floor's headring fixed mount (8) is equipped with in the axis below of outer earmuff (2), and lower floor's headring fixed mount (8) is fixed on the both sides of outer earmuff (2) by fixed axis (11).Use the duroplasts injection mo(u)lding with lower floor's headring (6), lower floor's headring fixed mount (8) plays the intilted effect of earmuff when drawing.On the outer ear pad (4) protective layer (10) is housed.During use, on head, earmuff fastens ears with sound insulation earmuff band.Outer earmuff (2) is subjected to the pulling force effect of pressure and lower floor's headring (6) of upper strata headring (5), fits tightly with people's ear by internal layer earmuff (3) and outer ear pad (4), plays sound damping effect.
The utility model compared with prior art has following advantage
1. adopt double-deck earmuff, soundproof effect is better than the monolayer earmuff;
2. pressure and pulling force combined effect have changed the airtight traditional method of simple depended on pressure in earmuff;
3. ectonexine earmuff elasticity connects, and sound leakage is eliminated in double-deck ear pad driving fit;
4. in interior earmuff, install speaker, external noise reduction microphone additional, can realize the wired conversation under the noise circumstance;
5. this earmuff is adapted at continuing conversing under the high-noise environment and noise protection is used.
Claims (3)
1. antinoise sound insulation earmuff, comprise earmuff, headring, ear pad, it is characterized in that: earmuff is made of internal layer earmuff (1), outer earmuff (2) respectively, be filled with elastomeric material (9) between the ectonexine earmuff, internal layer earmuff (1) end face is provided with internal layer ear pad (3), on the end face of outer earmuff (2) outer ear pad (4) is housed, upper strata headring (5) is equipped with at place, the outside axle center of outer earmuff (2), lower floor's headring fixed mount (8) is equipped with in the cylindrical axis below of outer earmuff (2), is connected with lower floor's headring (6) on lower floor's headring fixed mount (8).
2. antinoise sound insulation earmuff as claimed in claim 1 is characterized in that: internal layer ear pad (3) is the sealing ring that is the dish shape.
3. antinoise sound insulation earmuff as claimed in claim 1 is characterized in that: lower floor's headring fixed mount (8) is fixed on the outer earmuff (2) by fixed axis (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320100296 CN2650740Y (en) | 2003-10-15 | 2003-10-15 | Noise-resistant soundproofing ear muffs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320100296 CN2650740Y (en) | 2003-10-15 | 2003-10-15 | Noise-resistant soundproofing ear muffs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2650740Y true CN2650740Y (en) | 2004-10-27 |
Family
ID=34339178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320100296 Expired - Fee Related CN2650740Y (en) | 2003-10-15 | 2003-10-15 | Noise-resistant soundproofing ear muffs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2650740Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101663004B (en) * | 2007-02-14 | 2012-07-18 | Msa索迪恩公司 | System for forming a hearing protector, ear cup in such a system, and hearing protector formed by such a system |
| CN112887859A (en) * | 2019-11-30 | 2021-06-01 | 华为技术有限公司 | Ear pad, ear muff part and earphone |
-
2003
- 2003-10-15 CN CN 200320100296 patent/CN2650740Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101663004B (en) * | 2007-02-14 | 2012-07-18 | Msa索迪恩公司 | System for forming a hearing protector, ear cup in such a system, and hearing protector formed by such a system |
| CN112887859A (en) * | 2019-11-30 | 2021-06-01 | 华为技术有限公司 | Ear pad, ear muff part and earphone |
| WO2021104517A1 (en) * | 2019-11-30 | 2021-06-03 | 华为技术有限公司 | Ear pad, earmuff part and earphone |
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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 |