http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113995572-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4aa24714a3996eba20e5f5d99fedd4e8 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61F11-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61F11-08 |
| filingDate | 2021-11-19^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_34e304576651a3a35043263a878068cf |
| publicationDate | 2022-02-01^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-113995572-A |
| titleOfInvention | Adjustable pressure-relief noise-reduction earplug |
| abstract | The invention provides an adjustable pressure-relief noise-reduction earplug, which comprises an earplug main body, a sound-relief cavity cover plate and a pressure-relief switch, wherein the earplug main body comprises a sound-relief cavity base and a pressure-relief guide pipe, the sound-relief cavity base is provided with a sound-relief cavity, one end of the pressure-relief guide pipe is provided with a first pressure-relief hole, the other end of the pressure-relief guide pipe is provided with a second pressure-relief hole, one side of the sound-relief cavity base is provided with a switch sliding groove, the switch sliding groove is internally provided with a third pressure-relief hole, the pressure-relief switch is installed in the switch sliding groove, the bottom of the pressure-relief switch is provided with a fourth pressure-relief hole, one side of the pressure-relief switch is also provided with a fifth pressure-relief hole, the sound-relief cavity cover plate is hermetically connected to the sound-relief cavity, and a medium-high frequency sound-absorption module and a medium-low frequency sound-absorption module are arranged in the sound-relief cavity. The pressure release switch is arranged, so that air pressure outside the ear in the ear can be balanced, the wearing is more comfortable, the middle-high frequency sound absorption module and the middle-low frequency sound absorption module can effectively absorb and eliminate middle-high and middle-low frequency noise, and the noise reduction effect is greatly improved. |
| priorityDate | 2021-11-19^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID24261 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID457707758 |
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