CN107684488B - Selectable muffler and noise reduction earplug comprising same - Google Patents
Selectable muffler and noise reduction earplug comprising same Download PDFInfo
- Publication number
- CN107684488B CN107684488B CN201710919250.9A CN201710919250A CN107684488B CN 107684488 B CN107684488 B CN 107684488B CN 201710919250 A CN201710919250 A CN 201710919250A CN 107684488 B CN107684488 B CN 107684488B
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- cavity
- diameter
- stopper rod
- muffler
- conducting
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F11/00—Methods or devices for treatment of the ears or hearing sense; Non-electric hearing aids; Methods or devices for enabling ear patients to achieve auditory perception through physiological senses other than hearing sense; Protective devices for the ears, carried on the body or in the hand
- A61F11/06—Protective devices for the ears
- A61F11/08—Protective devices for the ears internal, e.g. earplugs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F11/00—Methods or devices for treatment of the ears or hearing sense; Non-electric hearing aids; Methods or devices for enabling ear patients to achieve auditory perception through physiological senses other than hearing sense; Protective devices for the ears, carried on the body or in the hand
- A61F11/06—Protective devices for the ears
- A61F11/08—Protective devices for the ears internal, e.g. earplugs
- A61F11/085—Protective devices for the ears internal, e.g. earplugs including an inner channel
Abstract
The invention discloses a selectable muffler and a noise reduction earplug comprising the same, wherein a knob mounting chamber is arranged at the far ear end of a plug body, a conducting cavity is arranged in the plug body, the conducting cavity is arranged at the rear side of the knob mounting chamber, the conducting cavity is a cylinder or a reverse cone, a sound inlet hole is arranged on the side wall of the far ear end of the conducting cavity, the sound inlet hole is communicated with the conducting cavity, a plug rod is plugged in the conducting cavity, the plug rod is attached to the conducting cavity, the plug rod is a cylinder or a cone, a tuning cavity is arranged at the near ear end of the plug body, a plug cover is arranged at the end part of the near ear end of the plug body, a tuning pad is fixed between the plug cover and the tuning cavity, a sound inlet switch knob is screwed in the conducting cavity through the knob mounting chamber, a through groove is formed on the outer surface of the plug rod along the axial direction, the groove on the outer surface of the plug rod forms a noise suppression cavity with the inner surface of the conducting cavity, and a sound outlet hole is formed on the plug cover. The invention can keep the sound intensity of the part which is needed within the reasonable range which can be obtained by human ears while isolating harmful noise.
Description
Technical Field
The invention relates to the technical field of silencers for filtering noise, in particular to an optional silencer and a noise reduction earplug comprising the same.
Background
At present, various requirements for hearing protection in life and work are becoming more and more common, and various conventional sponges and plastic earplugs can reduce the decibel value of various sounds. In the market, the penetration of sound waves is reduced through tiny holes so as to reduce the intensity of middle and high frequency sound, but the reduction of partial frequency, particularly middle and low frequency noise, cannot be effectively controlled due to the diffraction characteristic of the sound waves.
Disclosure of Invention
The invention aims at the problems and the shortcomings of the prior art, and provides an optional muffler and a noise reduction earplug comprising the same, which can isolate harmful noise and keep the required partial sound intensity within a reasonable range which can be acquired by human ears.
The invention solves the technical problems by the following technical proposal:
the invention provides a selectable silencer which is characterized by comprising a plug body, a plug rod, a tuning pad, a plug cover and a sound inlet switch knob, wherein a knob installation chamber is arranged at the far ear end of the plug body, a conducting cavity is formed in the plug body, the conducting cavity is arranged at the rear side of the knob installation chamber, the conducting cavity is a cylinder or a reverse cone, a sound inlet hole is formed in the side wall of the far ear end of the conducting cavity, the sound inlet hole is communicated with the conducting cavity, the plug rod is arranged in the conducting cavity in a plugged mode, the plug rod is attached to the conducting cavity, the plug rod is a cylinder or a cone, a tuning cavity is arranged at the near ear end of the plug body, the plug cover is arranged at the end part of the near ear end of the plug body, the tuning pad is fixed between the plug cover and the tuning cavity, the sound inlet switch is screwed into the conducting cavity through the knob installation chamber, a sound inlet groove is formed in the outer surface of the plug rod along the axial direction, and a sound outlet groove is formed in the outer surface of the plug rod, and the sound outlet groove is formed in the surface of the plug cavity.
Preferably, the sound inlet switch knob comprises a knob handle, a mounting and attaching part and a sound inlet rotary plunger, wherein the knob handle is fixed on one side of the mounting and attaching part, the sound inlet rotary plunger is fixed on the other side of the mounting and attaching part, and the sound inlet rotary plunger is of a non-full-circle structure;
the knob handle is arranged on the outer side of the end part of the distal lug end of the plug body, one part of the installation attaching part is installed in the knob installation chamber, the other part of the installation attaching part extends to the conducting cavity, the other part of the installation attaching part is completely attached to the wall surface of the conducting cavity, one side of the sound inlet rotary plunger is completely attached to the inner wall of the conducting cavity, and a notch is formed in the other side of the sound inlet rotary plunger, so that sound entering the sound inlet hole enters the conducting cavity.
Preferably, the conducting cavity is an inverted cone, the stopper rod is a cone, and the cone slope of the stopper rod is equal to the cavity cone slope of the conducting cavity; alternatively, the conducting cavity is a cylinder, and the stopper rod is a cone; or the conducting cavity is a cone, and the stopper rod is a cylinder; alternatively, the conduction cavity and the stopper rod are both cylinders.
Preferably, the diameter of the middle part of the conducting cavity is smaller than or equal to the diameter of the two ends, the diameter of the middle part of the conducting cavity is 0.5-4 mm, the diameter of the two ends of the conducting cavity is 0.5-4 mm, and the length of the conducting cavity is 5-25 mm.
Preferably, the diameter of the middle part of the conducting cavity is 1.8mm, the diameter of the two ends of the conducting cavity is 2mm, and the length of the conducting cavity is 12mm.
Preferably, the diameter of the conduction cavity gradually decreases along the direction from the proximal ear end to the distal ear end until reaching the minimum diameter, and then gradually increases, and the diameter of the conduction cavity gradually decreases until reaching the length of the minimum diameter part to be greater than or equal to the length of the plug body.
Preferably, the stopper rod is a cone, the diameter of the large end of the stopper rod is 0.5-4 mm, the diameter of the small end of the stopper rod is 0.5-4 mm, and the length of the stopper rod is 1-25 mm.
Preferably, the diameter of the large end of the stopper rod is 2mm, the diameter of the small end of the stopper rod is 1.7mm, and the length of the stopper rod is 3.5mm.
Preferably, the depth of the groove is 0.05 to 0.8mm.
Preferably, the diameter of the tuning cavity is 3-10 mm, the thickness of the tuning pad is 0.01-1 mm, and the diameter of the tuning pad is smaller than or equal to the diameter of the tuning cavity.
Preferably, a vibrating diaphragm is fixed at the near-ear end of the tuning cavity, the tuning pad is fixed at the far-ear end of the tuning cavity, and the vibrating diaphragm is a vibrating slice.
The invention also provides a noise reduction earplug which is characterized by comprising the selectable silencer and an earplug body, wherein the earplug body is provided with one or more layers of fins, the near-ear end of the selectable silencer is inserted into an insertion hole of the earplug body, and the inner diameter of the insertion hole is smaller than the outer diameter of the near-ear end of the selectable silencer.
On the basis of conforming to the common knowledge in the field, the above preferred conditions can be arbitrarily combined to obtain the preferred examples of the invention.
The invention has the positive progress effects that:
the invention can keep the sound intensity of the part which is needed within the reasonable range which can be obtained by human ears while isolating harmful noise.
Drawings
FIG. 1 is an exploded view of an alternative muffler according to a preferred embodiment of the present invention.
FIG. 2 is a schematic view of an alternative muffler according to a preferred embodiment of the present invention.
FIG. 3 is a schematic diagram showing a second alternative muffler according to the preferred embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a diaphragm according to a preferred embodiment of the present invention.
Fig. 5 is a schematic structural view of a noise reduction earplug according to a preferred embodiment of the invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 and 2, the present embodiment provides an alternative muffler, which is composed of a plug body 1, a plug rod 2, a tuning pad 3, a plug cover 4 and a sound inlet switch knob 5.
The distal ear end of the plug body 1 is provided with a knob mounting chamber 101; a conducting cavity 102 is formed in the plug body 1, the conducting cavity 102 is arranged at the rear side of the knob mounting chamber 101, and the conducting cavity 102 is a cylinder or a reverse cone; a sound inlet hole 104 is formed in the side wall of the far ear end of the conducting cavity 102, and the sound inlet hole 104 is communicated with the conducting cavity 102; the conducting cavity 102 is internally plugged with the stopper rod 2, and the stopper rod 2 is a cylinder or a cone; a tuning cavity 103 is arranged at the near-ear end of the plug body 1; a plug cover 4 is arranged outside the tuning cavity 103; a tuning pad 3 is arranged between the tuning cavity 103 and the plug cover 4; the sound inlet switch knob is screwed into the conducting cavity through the knob mounting chamber, and the plug cover 4 is provided with a sound outlet 401.
The sound inlet switch knob 5 comprises a knob handle 501, a mounting and attaching part 502 and a sound inlet rotary plunger 503, wherein one side of the mounting and attaching part 502 is fixed with the knob handle 501, and the other side is fixed with the sound inlet rotary plunger 503.
The knob handle 501 is arranged on the outer side of the plug body 1; a mounting and attaching part 502 is arranged at the rear side of the knob handle 501, one part of the mounting and attaching part 502 is mounted in the knob mounting chamber 101, and the other part extends into the conducting cavity 102; the mounting and attaching part 502 is completely attached to the wall surface of the conducting cavity 102, so that external sound is prevented from being transmitted into the ear through a gap between the mounting and attaching part and the conducting cavity; the rear side of installation laminating portion 502 still is equipped with into rotatory plunger 503 of sound, advance rotatory plunger 503 of sound and be the non-whole round structure, advance the rotatory plunger 503 of sound one side can with the complete laminating of conducting cavity 102' S internal surface, advance the opposite side of rotatory plunger 503 of sound and be equipped with the opening, this opening makes the entering advance sound S2 of sound hole 104 can get into in the conducting cavity 102.
As shown in fig. 3, the non-circular structure of the sound-input rotary plunger 503 is a semi-cylinder; when the knob handle 501 is rotated to make the cylindrical side of the sound inlet rotary plunger 503 completely fit with the inner wall surface of the conductive cavity 102 at the angle of the sound inlet 104, the sound S2 entering the sound inlet 104 cannot enter the conductive cavity 102 due to the blocking of the cylindrical side of the sound inlet rotary plunger 503, and cannot be further propagated into the ear, so that the earplug can shield sound waves of various frequencies to the maximum extent.
The shape selection of the conducting cavity 102 and the stopper rod 2 is mainly based on the fact that the stopper rod 2 can be tightly attached after being plugged into the conducting cavity 102; when this condition of close fitting is met, the conductive cavity 102 may be a cylinder and the stopper rod 2 a cone; or the conducting cavity 102 may be a cone and the stopper rod 2 a cylinder; even more, the conduction cavity 102 and the stopper rod 2 are both cylinders; it is ensured that after the stopper rod 2 is inserted into the conduction cavity 102, the two wall surfaces can be closely attached to each other in the axial direction due to the extrusion action.
The diameter of the two ends of the conducting cavity 102 is slightly larger, and the diameter is 0.5-4 mm, preferably 2mm; the diameter of the middle part of the conducting cavity 102 is smaller than or equal to two ends, preferably smaller than 0.5-4 mm, preferably 1.8mm; the length of the conducting cavity 102 is 5-25 mm, preferably 12mm; the diameter of the conducting cavity 102 from the proximal end to the distal end gradually decreases until the minimum diameter is 1.7mm, the length of the part is greater than or equal to the length of the plug body 2, preferably greater than 1mm of the length of the plug body, and the diameter gradually increases to the distal end after reaching the center of the minimum diameter.
The stopper rod 2 is a cone, and the diameter of the large end of the stopper rod 2 is 0.5-4 mm, preferably 2mm; the diameter of the small end of the stopper rod 2 is 0.5-4 mm, preferably 1.7mm; the length of the stopper rod 2 is 1-25 mm, preferably 3.5mm; the outer surface of the stopper rod 2 is provided with a semicircular groove 201 which penetrates through the outer surface along the axial direction of the cone; the depth of the groove 201 is 0.05 to 0.8mm, preferably 0.1 to 0.3mm.
The taper of the stopper rod 2 is equal to the chamber taper of the conducting chamber 102; the small end of the stopper rod 2 is plugged into the conducting cavity 102 through the large end of the conducting cavity 102; the outer surface of the stopper rod 2 is closely attached to the inner surface of the conducting cavity 102; the grooves 201 on the outer surface of the stopper rod 2 form a noise suppressing cavity 6 with the inner surface of the conducting cavity 102; the external sound wave S1 forms a sound wave S2 through the sound inlet hole 104, passes through the opening of the sound inlet rotary plunger 503, and then enters the conducting cavity 102 to form a sound wave S3; the sound wave S3 further propagates into the ear canal through the noise suppression cavity 6, and the noise suppression cavity 6 is relatively long and narrow, so that noise in the sound wave S3, particularly middle-low frequency noise, can be effectively suppressed, and a relatively soft sound wave S4 is formed.
The sound wave S4 enters the tuning cavity 103, and a tuning pad 3, preferably a near-ear end, is arranged at the near-ear end or the far-ear end of the tuning cavity 103; the tuning pad 3 may be made of PP, nylon, glass fiber, carbon fiber non-woven fabric or mesh material popular in the market, or even metal material, and its outer diameter is smaller than or equal to the inner diameter of the tuning cavity 103, and the tuning pad 3 filters part of high, middle and low frequency noise in the sound wave S3, and meanwhile, by selecting different materials, densities and thicknesses in the market, the tuning pad filters different frequencies in a targeted manner; the outer side of the tuning pad 3 is covered with the plug cover 4, and the plug cover 4 is provided with a sound outlet 401; after passing through the tuning pad 3, the sound wave S4 passes through the sound outlet 401, so as to form a sound wave S5, and finally the sound wave S5 is transmitted into the auditory canal.
The diameter of the tuning cavity 103 is 3-10 mm, preferably 5.5mm; the thickness of the tuning pad 3 is 0.01-1 mm, preferably 0.5mm; the diameter of the tuning pad 3 is less than or equal to the diameter of the tuning cavity 103.
As shown in fig. 4, in order to further improve tuning quality, a diaphragm 9 may be further disposed in the tuning cavity 103 near the ear end in addition to the tuning pad 3; the vibrating diaphragm 9 is a vibrating slice and can be made of PP, nylon, glass fiber, carbon fiber non-woven fabrics or net-shaped materials, even metal materials; the sound wave S4 is filtered by the tuning pad 3 to form a sound wave S5, the sound wave propagates in the tuning cavity 103, and the sound wave S6 is further refined and filtered by the diaphragm 9 and is transmitted into the ear.
One end of the conducting cavity 102 is a near-ear end, and the other end of the conducting cavity 102 is a far-ear end; the big end of the stopper rod 2 is a near-ear end, and the small end of the stopper rod 2 is a far-ear end; even if the stopper rod 2 is loosened, the stopper rod is separated from the conduction cavity 102, and is also positioned in the muffler, so that the stopper rod cannot be lost due to falling.
Since the noise suppressing cavity 3 is formed by grooving the outer surface of the stopper rod 2, it can be made thinner and longer as required, and can effectively suppress high-frequency noise, the production process is simpler, and the manufacturing cost is lower.
As shown in fig. 5, the present embodiment further provides a noise reduction earplug, which is formed by combining the above-mentioned selective muffler 7 and the earplug body 8, wherein the earplug body 8 has a plurality of layers of fins 801, which can effectively fit the auditory canal, so that external sound waves can only be transmitted into the ear after being filtered by the selective muffler 7.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that these are by way of example only, and the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the invention, but such changes and modifications fall within the scope of the invention.
Claims (10)
1. The utility model provides a selectable muffler, its characterized in that, it includes a cock body, a stopper rod, a tuning pad, a stopper lid and a sound switch knob, the distal end of cock body is equipped with the knob installation room, set up the conducting cavity in the cock body, the conducting cavity is arranged in the rear side of knob installation room, the conducting cavity is a cylinder or reverse cone, set up the sound inlet on the distal end lateral wall of conducting cavity, the sound inlet with the conducting cavity intercommunication, the conducting intracavity stopper is equipped with the stopper rod, the stopper rod with the conducting cavity laminating mutually, the stopper rod is a cylinder or cone, the proximal end of the stopper body is equipped with the tuning chamber, the stopper lid is located the tip of the proximal end of cock body, be fixed with between stopper lid and the tuning chamber the tuning pad, the sound switch knob is through the knob installation room connect in the conducting cavity, the surface of stopper rod has offered a groove along the axial, the surface of stopper rod is equipped with the sound that the surface of stopper rod is equipped with on the surface of the stopper rod that suppresses the sound to form on the surface of stopper lid;
the sound inlet switch knob comprises a knob handle, a mounting and attaching part and a sound inlet rotary plunger, wherein the knob handle is fixed on one side of the mounting and attaching part, the sound inlet rotary plunger is fixed on the other side of the mounting and attaching part, and the sound inlet rotary plunger is of a non-whole circular structure; the knob handle is arranged on the outer side of the end part of the far ear end of the plug body, one part of the installation joint part is installed in the knob installation chamber, the other part of the installation joint part extends into the conducting cavity, the other part of the installation joint part is completely jointed with the wall surface of the conducting cavity, one side of the sound inlet rotary plunger is completely jointed with the inner wall of the conducting cavity, and a notch is formed in the other side of the sound inlet rotary plunger, so that sound entering the sound inlet hole enters the conducting cavity;
the conduction cavity is an inverted cone, the stopper rod is a cone, and the cone inclination of the stopper rod is equal to the cavity cone inclination of the conduction cavity; alternatively, the conducting cavity is a cylinder, and the stopper rod is a cone; or the conducting cavity is a cone, and the stopper rod is a cylinder; alternatively, the conduction cavity and the stopper rod are both cylinders.
2. The selectable muffler of claim 1, wherein the diameter of the middle portion of the conductive cavity is less than or equal to the diameter of the two ends, the diameter of the middle portion of the conductive cavity is 0.5-4 mm, the diameter of the two ends of the conductive cavity is 0.5-4 mm, and the length of the conductive cavity is 5-25 mm.
3. The selective muffler of claim 2, wherein the diameter of the middle portion of the conductive cavity is 1.8mm, the diameter of both ends of the conductive cavity is 2mm, and the length of the conductive cavity is 12mm.
4. The selectable muffler of claim 2, wherein the diameter of the conductive lumen gradually decreases in a direction from the proximal ear end toward the distal ear end until a minimum diameter is reached and gradually increases, the diameter of the conductive lumen gradually decreasing until a length of the minimum diameter portion is greater than or equal to a length of the plug body.
5. The selectable muffler of claim 2, wherein the stopper rod is a cone, the diameter of the large end of the stopper rod is 0.5 to 4mm, the diameter of the small end of the stopper rod is 0.5 to 4mm, and the length of the stopper rod is 1mm to 25mm.
6. The selective muffler of claim 5, wherein the large end of the stopper rod has a diameter of 2mm, the small end of the stopper rod has a diameter of 1.7mm, and the stopper rod has a length of 3.5mm.
7. The selective muffler of claim 1, wherein the depth of the groove is 0.05-0.8 mm.
8. The selectable muffler of claim 1, wherein the tuning cavity has a diameter of 3-10 mm, the tuning pad has a thickness of 0.01-1 mm, and the tuning pad has a diameter less than or equal to the diameter of the tuning cavity.
9. The selectable muffler of claim 1, wherein a diaphragm is secured to a proximal end of the tuning chamber and the tuning pad is secured to a distal end of the tuning chamber, the diaphragm being a vibrating sheet.
10. A noise reducing earplug comprising the selectable muffler of any one of claims 1-9 and an earplug body having one or more layers of fins, a proximal end of the selectable muffler being inserted into an insertion aperture of the earplug body, an inner diameter of the insertion aperture being smaller than an outer diameter of the proximal end of the selectable muffler.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710919250.9A CN107684488B (en) | 2017-09-30 | 2017-09-30 | Selectable muffler and noise reduction earplug comprising same |
| PCT/CN2017/108301 WO2019061638A1 (en) | 2017-09-30 | 2017-10-30 | Selective sound attenuation device and noise-cancelling earplug having same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710919250.9A CN107684488B (en) | 2017-09-30 | 2017-09-30 | Selectable muffler and noise reduction earplug comprising same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107684488A CN107684488A (en) | 2018-02-13 |
| CN107684488B true CN107684488B (en) | 2023-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710919250.9A Active CN107684488B (en) | 2017-09-30 | 2017-09-30 | Selectable muffler and noise reduction earplug comprising same |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107684488B (en) |
| WO (1) | WO2019061638A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7192486B2 (en) | 2018-12-25 | 2022-12-20 | 株式会社Ｊｖｃケンウッド | Earplug |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW592672B (en) * | 2003-10-24 | 2004-06-21 | Liou Yue Ming | Earplug and device using the earplug |
| CN1709213A (en) * | 2004-06-18 | 2005-12-21 | 刘月明 | Earplug and device for applying same |
| CN102137322A (en) * | 2010-01-25 | 2011-07-27 | 江苏贝泰福医疗科技有限公司 | Earplug and hearing aid |
| CN102149354A (en) * | 2008-08-22 | 2011-08-10 | 金伯利-克拉克环球有限公司 | Self-conforming sound attenuation earplug |
| CN203206435U (en) * | 2013-04-16 | 2013-09-18 | 邹俊峰 | Earplug filter core |
| CN105012073A (en) * | 2015-07-25 | 2015-11-04 | 鲁建辉 | Denoising earplug |
| CN106132364A (en) * | 2014-04-17 | 2016-11-16 | 蔡昇昊 | Earplug and the earplug assembly including it |
| CN206239601U (en) * | 2016-07-25 | 2017-06-13 | 珠海卓力声科技有限公司 | Earplug filters fuse and earplug |
| CN206370934U (en) * | 2016-12-30 | 2017-08-01 | 佳禾智能科技股份有限公司 | A kind of earplug of adjustable tonequality |
| CN107049602A (en) * | 2017-05-24 | 2017-08-18 | 孟祥力 | One kind filters earplug of making an uproar |
| CN208511328U (en) * | 2017-09-30 | 2019-02-19 | 江阴思安塑胶防护科技有限公司 | Selecting type muffler and noise reduction earplug including it |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2310563Y (en) * | 1997-11-11 | 1999-03-17 | 何志燎 | Noise-proof earplug |
| EP2661098A1 (en) * | 2003-02-14 | 2013-11-06 | GN Resound A/S | An adaptor for mounting a sound tube in an earpiece |
| EP1704751A1 (en) * | 2004-01-07 | 2006-09-27 | Etymotic Research, Inc | One-size-fits-most hearing aid |
| CN2764338Y (en) * | 2004-12-24 | 2006-03-15 | 李沫思 | Portable and adjustable minitype mute earplug |
| US20060253087A1 (en) * | 2005-04-22 | 2006-11-09 | Aner Vlodaver | Medication delivery device |
| US20110274296A1 (en) * | 2010-05-05 | 2011-11-10 | Victor Kingsun Wai | Ear Tip Method and Apparatus |
| CN201893908U (en) * | 2010-12-18 | 2011-07-06 | 珠海隆凯医疗设备有限公司 | Filter and antinoise earplug |
| US9814625B2 (en) * | 2013-01-04 | 2017-11-14 | 3M Innovative Properties Company | Selective attenuating earplug |
| US8931489B2 (en) * | 2013-01-07 | 2015-01-13 | So Others May Hear, LLC | Hearing protection devices and kits including adjustable sound-attenuation assemblies |
| US10660797B2 (en) * | 2014-05-20 | 2020-05-26 | 3M Innovative Properties Company | Push-to-fit earplug having an array of cavities |
| CN205283775U (en) * | 2015-12-27 | 2016-06-01 | 郭文清 | Music earplug |
-
2017
- 2017-09-30 CN CN201710919250.9A patent/CN107684488B/en active Active
- 2017-10-30 WO PCT/CN2017/108301 patent/WO2019061638A1/en active Application Filing
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW592672B (en) * | 2003-10-24 | 2004-06-21 | Liou Yue Ming | Earplug and device using the earplug |
| CN1709213A (en) * | 2004-06-18 | 2005-12-21 | 刘月明 | Earplug and device for applying same |
| CN102149354A (en) * | 2008-08-22 | 2011-08-10 | 金伯利-克拉克环球有限公司 | Self-conforming sound attenuation earplug |
| CN102137322A (en) * | 2010-01-25 | 2011-07-27 | 江苏贝泰福医疗科技有限公司 | Earplug and hearing aid |
| CN203206435U (en) * | 2013-04-16 | 2013-09-18 | 邹俊峰 | Earplug filter core |
| CN106132364A (en) * | 2014-04-17 | 2016-11-16 | 蔡昇昊 | Earplug and the earplug assembly including it |
| CN105012073A (en) * | 2015-07-25 | 2015-11-04 | 鲁建辉 | Denoising earplug |
| CN206239601U (en) * | 2016-07-25 | 2017-06-13 | 珠海卓力声科技有限公司 | Earplug filters fuse and earplug |
| CN206370934U (en) * | 2016-12-30 | 2017-08-01 | 佳禾智能科技股份有限公司 | A kind of earplug of adjustable tonequality |
| CN107049602A (en) * | 2017-05-24 | 2017-08-18 | 孟祥力 | One kind filters earplug of making an uproar |
| CN208511328U (en) * | 2017-09-30 | 2019-02-19 | 江阴思安塑胶防护科技有限公司 | Selecting type muffler and noise reduction earplug including it |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107684488A (en) | 2018-02-13 |
| WO2019061638A1 (en) | 2019-04-04 |
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