http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-209437495-U
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a9404f8ecb6e6c9e77d5d5acc0b17fce |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61F11-08 |
| filingDate | 2018-11-16^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2019-09-27^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d1fbfed1a33da99c570500c49da0dc1d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_93359e2a9627b814373b44df79e620ed http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8519344cef6e1fb2c7ec0ea60bd7ccc5 |
| publicationDate | 2019-09-27^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-209437495-U |
| titleOfInvention | A kind of noise protection earplug |
| abstract | The utility model discloses a kind of noise protection earplugs, including earplug filter and earplug head, the earplug filter includes the upper cover set gradually, screen cloth, diaphragm and lower cover, the top of the upper cover is provided with sound outlet hole, at embedded structure, the bottom surface middle part of the lower cover is provided with several sound inlets for the sound outlet hole and the earplug capitiform.For the utility model by being provided with sound outlet hole on the top of earplug filter, which makes pressure and ear external pressure dynamic balance in ear, and when wearing is more comfortable；And by the way that sound inlet is arranged in the middle part of the bottom surface of earplug filter, so that being reduced into the overall loudness in the noise protection earplug, more noises can effectively be filtered, effectively decayed by the sound wave of the screen cloth and diaphragm to extraneous each frequency range, noise protection effect is good, satisfaction, the user experience effect that can greatly improve user are good. |
| priorityDate | 2018-11-16^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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