CN107750021A - Muffler and the noise reduction earplug for including it - Google Patents
Muffler and the noise reduction earplug for including it Download PDFInfo
- Publication number
- CN107750021A CN107750021A CN201710937801.4A CN201710937801A CN107750021A CN 107750021 A CN107750021 A CN 107750021A CN 201710937801 A CN201710937801 A CN 201710937801A CN 107750021 A CN107750021 A CN 107750021A
- Authority
- CN
- China
- Prior art keywords
- chamber
- stopper
- muffler
- conduction
- conduction chamber
- 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.)
- Granted
Links
- 239000000428 dust Substances 0.000 claims description 25
- 239000007921 spray Substances 0.000 claims description 4
- 235000001674 Agaricus brunnescens Nutrition 0.000 claims description 3
- 230000002035 prolonged effect Effects 0.000 claims 1
- 231100001261 hazardous Toxicity 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 4
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920002457 flexible plastic Polymers 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1058—Manufacture or assembly
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/02—Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators
- G10K11/04—Acoustic filters ; Acoustic resonators
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
- H04R2201/10—Details of earpieces, attachments therefor, earphones or monophonic headphones covered by H04R1/10 but not provided for in any of its subgroups
- H04R2201/105—Manufacture of mono- or stereophonic headphone components
Abstract
The invention discloses a kind of muffler and include its noise reduction earplug, muffler includes cock body, stopper, tuning pad and gag, the remote ear end of cock body is provided with sound chamber, the edge for holding together sound chamber has the chamfering to stretch out, conduction chamber is offered in cock body, conduction chamber is placed in the rear side of sound chamber, it is cylinder or reverse taper to conduct chamber, conduction intracavitary plug is provided with stopper, stopper fits with conduction chamber, stopper is a cylinder or cone, the nearly ear end of cock body is provided with tuning chamber, gag is covered on the end at the nearly ear end of cock body, the tuning pad is fixed between gag and tuning chamber, the outer surface of stopper offers a groove run through vertically, the inner surface of groove and conduction chamber on the outer surface of stopper forms noise rejection chamber, sender is offered on gag.The present invention is while hazardous noise is completely cut off, in the range of partial sound intensity in need is maintained at and can rationally obtained by human ear by and can.
Description
Technical field
The present invention relates to the technical field of the muffler for filtering noise, more particularly to a kind of muffler and including institute
State the noise reduction earplug of muffler.
Background technology
The various requirements for hearing protection are more and more common in live and work at present, conventional various sponges, plastic cement ear
Plug can reduce the decibel value of various sound.Research and development have by said minuscule hole to reduce the penetrability of sound wave in the market at present, from
And reaching reduces medium-high frequency intensity of sound, but because of the diffraction characteristic of sound wave, for component frequency particularly Middle and low frequency noise
Reduction cannot be controlled effectively.
The content of the invention
The present invention is directed to problem and shortage existing for prior art, there is provided a kind of muffler and the noise reduction earplug for including it,
While hazardous noise is completely cut off, in the range of partial sound intensity in need is maintained at and can rationally obtained by human ear by and can.
The present invention is that solve above-mentioned technical problem by following technical proposals：
The present invention provides a kind of muffler, and its feature is that it includes a cock body, a stopper, a tuning pad and a gag,
The remote ear end of the cock body is provided with sound chamber, it is described hold together sound chamber edge there is the chamfering to stretch out, opened up in the cock body
Have a conduction chamber, the conduction chamber be placed in it is described hold together sound chamber rear side, the conduction chamber is a cylinder or reverse taper, the conduction
Intracavitary plug is provided with the stopper, and the stopper fits with the conduction chamber, and the stopper is a cylinder or cone, described
The nearly ear end of cock body is provided with tuning chamber, and the gag is covered on the end at the nearly ear end of the cock body, the gag and the tune
Be fixed with the tuning pad between sound chamber, the outer surface of the stopper offers a groove run through vertically, the stopper it is outer
The inner surface of groove and the conduction chamber on surface forms noise rejection chamber, and sender is offered on the gag.
It is preferred that it is described hold together sound chamber with it is described conduction chamber junction set dust cap, the dust cap be brought into close contact in
On the cock body or it is bonded on the cock body, at least one sound inlet is offered on the dust cap, the sound inlet is distributed in
The surface of the dust cap, and by it is described hold together sound chamber with it is described conduction chamber be connected.
It is preferred that the dust cap is in mushroom, the dust cap has relatively large block and relatively thin bullet
Property plug handle, the resilient plug handle mutually fixed with the block, and the block is covered in the outside of the conduction chamber, the resilient plug handle
Stretch into and be clamped on the conduction intracavitary, the sound inlet is extended in the resilient plug handle from the block, and by it is described hold together
Sound chamber is connected with the conduction chamber.
It is preferred that the inner chamber of the resilient plug handle is hollow, the sound inlet is that groove type is distributed in the block
Inner side, the sound inlet pass through the binding site of the resilient plug handle and the block and extend to the hollow of the resilient plug handle
Interior intracavitary.
It is preferred that the resilient plug handle is non-full-circle spray pattern, the sound inlet is the inner side that groove type is distributed in the block,
The sound inlet is through the resilient plug handle and the binding site of the block and extends in the resilient plug handle.
It is preferred that the conduction chamber is reverse taper, the stopper is cone, and the cone gradient of the stopper is equal to described
Conduct the chamber cones gradient of chamber；Or the conduction chamber is cylinder, the stopper is cone；Or the conduction chamber
For cone, the stopper is cylinder；Or the conduction chamber and the stopper are cylinder.
It is preferred that the big end of the conduction chamber is nearly ear end, small end is remote ear end, the big end of the stopper is nearly ear end,
Small end is remote ear end, and the outside diameter of the conduction chamber be 0.5~4mm, and the end diameter for conducting chamber is 0.5~4mm, institute
The length for stating conduction chamber is 5~25mm.
It is preferred that the outside diameter of the conduction chamber be 2mm, the end diameter for conducting chamber is 1.8mm, the conduction
The length of chamber is 12mm.
It is preferred that the internal diameter of the diameter of the stopper and the conduction chamber matches, the length of the stopper is 1mm-
25mm。
It is preferred that the depth of the groove is 0.01~0.8mm.
It is preferred that a diameter of 3~10mm of the tuning chamber, the thickness of the tuning pad is 0.01~1mm, the tuning
The diameter of pad is less than or equal to the diameter of the tuning chamber.
It is preferred that the nearly ear end of the tuning chamber is fixed with vibrating diaphragm, remote ear end is fixed with the tuning pad, the vibrating diaphragm is
Vibrate thin slice.
The present invention also provides a kind of noise reduction earplug, and its feature is, it includes above-mentioned muffler and earplug body, the ear
Cock body has one or more layers fin, and the nearly ear end of the muffler is inserted in the filling in hole of the earplug body, described to fill in
The internal diameter in hole is less than the external diameter at the nearly ear end of the muffler.
It on the basis of common sense in the field is met, above-mentioned each optimum condition, can be combined, it is each preferably real to produce the present invention
Example.
The positive effect of the present invention is：
For the present invention while hazardous noise is completely cut off, partial sound intensity in need is maintained at by and can rationally can be by people
In the range of ear obtains.
Brief description of the drawings
Fig. 1 is the structure decomposition figure of the muffler of present pre-ferred embodiments.
Fig. 2 is the structural representation of the muffler of present pre-ferred embodiments.
Fig. 3 is the partial structural diagram of the muffler of present pre-ferred embodiments.
Fig. 4 is the structural representation of the dust cap of an embodiment of the present invention.
Fig. 5 is the structural representation of the dust cap of another embodiment of the present invention.
Fig. 6 and 7 is the structural representation of the dust cap of further embodiment of this invention.
Fig. 8 and 9 is the structural representation of the dust cap of another embodiment of the present invention.
Figure 10 and 11 is the structural representation of the noise reduction earplug of present pre-ferred embodiments.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained on the premise of creative work is not made, belongs to the scope of protection of the invention.
As Figure 1-3, the present embodiment provides a kind of muffler, is made up of cock body 1, stopper 2, tuning pad 3 and gag 4.
The remote ear end of the cock body 1 is provided with sound chamber 101, it is described hold together the edge of sound chamber 101 there is the chamfering to stretch out, be easy to extraneous sound
Ripple S1 enters muffler；It is described hold together sound chamber 101 rear side be provided with conduction chamber 102, it is described conduction chamber 102 be a cylinder or back taper
Body；The stopper 2 is provided with the conduction chamber 102, the stopper 2 is cylinder or cone.Coordinate to be more preferable, conduct chamber
102 preferred reverse tapers, 2 preferred cone of stopper.The nearly ear end of the cock body 1 is provided with tuning chamber 103, and the gag 4 is covered on
The end at the nearly ear end of the cock body 1, is fixed with the tuning pad 3 between the gag 4 and the tuning chamber 103.
Above-mentioned conduction chamber 102, stopper 2 shape selection, be mainly based upon stopper 2 fill in conduction chamber 102 in after, can be tight
Closely connected conjunction；When meeting to be brought into close contact this condition, the conduction chamber 102 can be cylinder, and stopper 2 is cone；Or
The conduction chamber 102 can be cone, and stopper 2 is cylinder；Even, the conduction chamber 102 and stopper 2 are all cylinder
Body；Ensure after stopper 2 fills in conduction chamber 102, because of squeezing action, mutually can closely paste both walls in the axial direction
Close.
The outside diameter of the conduction chamber 102 is 0.5~4mm, preferably 2mm；It is described conduction chamber 102 end diameter be
0.5~4mm, preferably 1.8mm；The length of the conduction chamber 102 is 5~25mm, preferably 12mm.
The stopper 2 is cylinder or cone, preferably cone, the internal diameter phase of the diameter simultaneous interpretation guide cavity 102 of stopper 2
Together；The length of the stopper 2 is 1mm-25mm, preferably 3mm-8mm；The outer surface of the stopper 2 offers one and run through vertically
Groove 201 (see Fig. 1)；The depth of the groove 201 is 0.01~0.8mm, according to actual use, preferably 0.1mm~0.3mm.
The cone gradient of the stopper 2 is equal to the chamber cones gradient of the conduction chamber 102；The small end warp of the stopper 2
The big end plug of the conduction chamber 102 enters in the conduction chamber 102；The outer surface of stopper 2 and the interior table of the conduction chamber 102
Face, it is brought into close contact；The inner surface of groove 201 and the conduction chamber 102 on the outer surface of stopper 2 forms noise rejection chamber 5.Institute
State and hold together sound chamber 101 described in external sound wave S1 warps into the conduction chamber 102, form sound wave S2；Described in the external sound wave S1 warps
Hold together sound chamber 101 and enter the conduction chamber 102, form sound wave S2；The sound wave S2 is through the noise rejection chamber 5 further to duct
Interior propagation, because noise rejection chamber 5 is more long and narrow, effectively the noise in sound wave S2, particularly middle low frequency noise can be entered
Row is restrained, so as to form relatively soft sound wave S3.
Sound wave S3 enters the tuning chamber 103 immediately, and the nearly ear end or remote ear end of the tuning chamber 103 are provided with tuning pad 3,
It is preferred that nearly ear end；PP, nylon, glass, carbon fiber nonwoven fabric or Web materials, or even metal material can be used in the tuning pad 3
Material, its external diameter are less than or equal to the internal diameter of the tuning chamber 103, and the part that the tuning pad 3 is used to filter in sound wave S3 is high, normal, basic
Frequency noise, while by being lined with from the market unlike material, density, thickness tuning and pointedly filtering different frequency；Institute
Stating the outboard cover of tuning pad 3 has the gag 4, and sender 401 is offered on the gag 4；Sound wave S3 is through the tuning pad 3
Afterwards, the sender 401 is then passed through, sound wave S4 is ultimately formed and is passed in duct.
A diameter of 3~10mm of the tuning chamber 103, preferably 5.5mm；The thickness of the tuning pad 3 is 0.01~1mm,
It is preferred that 0.5mm.The diameter of the tuning pad 3 is less than or equal to the diameter of tuning chamber 103.
As shown in figure 3, in order to further improve tuning quality, after tuning chamber 103 is interior except setting tuning pad 3, may be used also
At nearly ear end, one vibrating diaphragm 9 is set again；The vibrating diaphragm 9 for vibration thin slice, can be used PP, nylon, glass, carbon fiber nonwoven fabric or
Person's Web materials, or even metal material are made；Sound wave S3 first filters through tuning pad 3, forms sound wave S4, the sound wave is in tuning chamber
Propagated in 103, then be filtered into sound wave S5 via vibrating diaphragm 9, further refinement, be transmitted into the ear.
The big end of the cone conduction chamber 102 is nearly ear end, and the small end of the conduction chamber 102 is remote ear end；The circle
The big end of cone stopper 2 is nearly ear end, and the small end of the stopper 2 is remote ear end；So set after, stopper 2 be not easy by external force from
Conduct in chamber 102 and take out.
Because noise rejection chamber 5 is slotted on its outer surface by the stopper 2 and formed, can be as needed, do
It is relatively thin, it is longer, high frequency noise can effectively be restrained, production technology is simpler, and manufacturing cost is relatively low.
As shown in figure 4, in order to prevent external impurities from entering in the conduction chamber 102 of cock body 1, filter effect is had an impact,
And debris clears up the problem of difficult, dust cap 6 can be set with conducting the junction of chamber 102 in the sound chamber 101 that hold together of cock body 1, it is described
Dust cap 6 is closely fitted on cock body 1 or is bonded on cock body 1；The dust cap 6 is provided with sound inlet 601, the sound inlet
601 are at least 1, are distributed in the surface of the dust cap 6, and will hold together sound chamber 101 and be connected with conduction chamber 102；It is described enter sound
Hole 601, which is mainly risen, facilitates sound to enter conduction chamber 102, and and can prevents debris from entering in conduction chamber 102, therefore sound inlet 601 requires
It is arranged in the region that the dust cap 6 is connected with the conduction chamber 102；The shape of the sound inlet 601 can be it is square,
Circle, or other rule, irregular shapes.Preferably, sound inlet 601 is circle, and quantity is 1, is arranged on dust cap 6
Center.
As shown in 5 figures, the as another embodiment of dust cap 6 which is provided with sound inlet 601, the sound inlet 601
It can be abnormity fluting or other shapes, be not limited to above-mentioned square or circular.
Preferably, as shown in Figures 6 and 7, the dust cap 6 can also use mushroom form, have larger block 602,
The block 602 is covered in the outside of conduction chamber 102；Thinner plug handle 603, plug handle can be stretched into conduction chamber 102, realized locking；
Plug handle 603 has certain elasticity, is clamped in conduction chamber 102, convenient dismounting and replacing dust cap 6；Sound inlet 601 is from block
602 extend in plug handle 603, will hold together sound chamber 101 and are connected with conduction chamber 102；As shown in Figures 6 and 7, as preferable embodiment party
Formula, to be hollow, the sound inlet 601 is the inner side that groove type is distributed in block 602 for the inner chamber of the plug handle 603, it is described enter
Sound hole 601 is extended in the hollow cavity of plug handle 603 through plug handle 603 and the binding site of block 602.
Preferably, as shown in FIG. 8 and 9, as another embodiment, the plug handle 603 is non-full-circle spray pattern, it is described enter sound
Hole 601 is the inner side that groove type is distributed in block 602；The sound inlet 601 passes through plug handle 603 and the binding site of block 602,
Extend to the non-full circle position of plug handle 603；By the sound inlet 601 and the plug handle 603 of non-full-circle spray pattern, by the conduction chamber
102 with it is described hold together sound chamber 101 and the external world be connected.
In order to realize preferably hold together audio fruit, it is described hold together sound chamber 101 inclined-plane diameter below with it is described conduct chamber 102 it is upper
Portion's diameter is consistent, i.e., it is described hold together sound chamber 101 inclined-plane be directly connected with the conduction chamber 102.
Meanwhile in order to ensure that the plug handle 603 of dust cap 6 can be reliably filled in the conduction chamber 102, the conduction chamber
102 top, i.e., with the position that is in contact of plug handle 603, be designed to the face being engaged with the plug handle 603, can be on
The consistent cylinder of lower diameter；It can also be the taper that upper diameter is small, lower diameter is big, facilitate filling in for the plug handle 603；
It can also be the taper that upper diameter is big, lower diameter is small, after the plug handle 603 is filled in, spring expanding, prevent unexpected de-
Fall；Even other bumps is complex-curved, and mainly convenient plug handle 603 is filled in, and prevents it from coming off.
As shown in FIG. 10 and 11, the present embodiment also provides a kind of noise reduction earplug, has 8 groups of above-mentioned muffler 7 and earplug body
Conjunction forms；The nearly ear end of the muffler 7 is inserted in the filling in hole of the earplug body 8, and the internal diameter for filling in hole is less than institute
State the external diameter at the nearly ear end of muffler 7；Earplug body 8 has one or more layers fin, and flexible plastic cement is made, and can effectively be bonded ear
Road, external sound wave is set can be just transmitted into the ear after muffler filters.
Although the foregoing describing the embodiment of the present invention, it will be appreciated by those of skill in the art that these
It is merely illustrative of, protection scope of the present invention is defined by the appended claims.Those skilled in the art is not carrying on the back
On the premise of principle and essence from the present invention, various changes or modifications can be made to these embodiments, but these are changed
Protection scope of the present invention is each fallen within modification.
Claims (13)
- A kind of 1. muffler, it is characterised in that it includes a cock body, a stopper, a tuning pad and a gag, the cock body it is remote Ear end is provided with sound chamber, it is described hold together sound chamber edge there is the chamfering to stretch out, offer conduction chamber in the cock body, it is described Conduction chamber be placed in it is described hold together sound chamber rear side, the conduction chamber be a cylinder or reverse taper, and the intracavitary plug that conducts is provided with institute State stopper, the stopper fits with the conduction chamber, and the stopper is a cylinder or cone, the nearly ear end of the cock body Provided with tuning chamber, the gag is covered on the end at the nearly ear end of the cock body, fixed between the gag and the tuning chamber Have a tuning pad, the outer surface of the stopper offers a groove run through vertically, the groove on the outer surface of the stopper with The inner surface of the conduction chamber forms noise rejection chamber, and sender is offered on the gag.
- 2. muffler as claimed in claim 1, it is characterised in that it is described hold together sound chamber and the conduction chamber junction set it is anti- Dirt lid, the dust cap are brought into close contact on the cock body or being bonded on the cock body, and at least one is offered on the dust cap Individual sound inlet, the sound inlet are distributed in the surface of the dust cap, and by it is described hold together sound chamber be connected with the conduction chamber.
- 3. muffler as claimed in claim 2, it is characterised in that the dust cap is in mushroom, and the dust cap has phase To larger block and relatively thin resilient plug handle, the resilient plug handle is mutually fixed with the block, and the block is covered in institute The outside of conduction chamber is stated, the resilient plug handle stretches into and is clamped on the conduction intracavitary, and the sound inlet extends from the block To in the resilient plug handle, and by it is described hold together sound chamber be connected with the chamber that conducts.
- 4. muffler as claimed in claim 3, it is characterised in that the inner chamber of the resilient plug handle to be hollow, it is described enter sound Hole is the inner side that groove type is distributed in the block, and the sound inlet passes through the resilient plug handle and the binding site of the block And extend in the hollow cavity of the resilient plug handle.
- 5. muffler as claimed in claim 3, it is characterised in that the resilient plug handle is non-full-circle spray pattern, and the sound inlet is Groove type is distributed in the inner side of the block, and the sound inlet passes through the binding site of the resilient plug handle and the block and prolonged Extend in the resilient plug handle.
- 6. muffler as claimed in claim 1, it is characterised in that the conduction chamber is reverse taper, and the stopper is cone, The cone gradient of the stopper is equal to the chamber cones gradient of the conduction chamber；Or the conduction chamber is cylinder, the plug Rod is cone；Or the conduction chamber is cone, the stopper is cylinder；Or the conduction chamber and the stopper It is cylinder.
- 7. muffler as claimed in claim 1, it is characterised in that the big end of the conduction chamber is nearly ear end, small end is remote ear End, the big end of the stopper is nearly ear end, small end is remote ear end, and the outside diameter of the conduction chamber is 0.5~4mm, the biography The end diameter of guide cavity is 0.5~4mm, and the length of the conduction chamber is 5~25mm.
- 8. muffler as claimed in claim 7, it is characterised in that the outside diameter of the conduction chamber is 2mm, the conduction chamber End diameter be 1.8mm, it is described conduction chamber length be 12mm.
- 9. muffler as claimed in claim 8, it is characterised in that the internal diameter phase of the diameter of the stopper and the conduction chamber Match somebody with somebody, the length of the stopper is 1mm-25mm.
- 10. muffler as claimed in claim 1, it is characterised in that the depth of the groove is 0.01~0.8mm.
- 11. muffler as claimed in claim 1, it is characterised in that a diameter of 3~10mm of the tuning chamber, the tuning The thickness of pad is 0.01~1mm, and the diameter of the tuning pad is less than or equal to the diameter of the tuning chamber.
- 12. muffler as claimed in claim 1, it is characterised in that the nearly ear end of the tuning chamber is fixed with vibrating diaphragm, remote ear end The tuning pad is fixed with, the vibrating diaphragm is vibration thin slice.
- 13. a kind of noise reduction earplug, it is characterised in that it includes the muffler and ear as described in any one in claim 1-12 Cock body, the earplug body have one or more layers fin, and what the nearly ear end of the muffler was inserted in the earplug body fills in hole Interior, the internal diameter for filling in hole is less than the external diameter at the nearly ear end of the muffler.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710937801.4A CN107750021B (en) | 2017-09-30 | 2017-09-30 | Muffler and noise reduction earplug comprising same |
| PCT/CN2017/108298 WO2019061637A1 (en) | 2017-09-30 | 2017-10-30 | Sound attenuation device and noise-cancelling earplug having same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710937801.4A CN107750021B (en) | 2017-09-30 | 2017-09-30 | Muffler and noise reduction earplug comprising same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107750021A true CN107750021A (en) | 2018-03-02 |
| CN107750021B CN107750021B (en) | 2024-04-02 |
Family
ID=61256040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710937801.4A Active CN107750021B (en) | 2017-09-30 | 2017-09-30 | Muffler and noise reduction earplug comprising same |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107750021B (en) |
| WO (1) | WO2019061637A1 (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4532649A (en) * | 1983-07-03 | 1985-07-30 | Gaspare Bellafiore | Hearing aid |
| DE8906695U1 (en) * | 1989-06-01 | 1989-07-13 | Robert Bosch Gmbh, 7000 Stuttgart, De | |
| EP1078615A1 (en) * | 1999-08-19 | 2001-02-28 | Kurer, Walter | Hearing protector |
| DE69918490D1 (en) * | 1998-04-29 | 2004-08-12 | Cabot Safety Intermediate Corp | Selective nonlinear earplug |
| CN2714023Y (en) * | 2004-06-18 | 2005-08-03 | 刘月明 | Earplug and device applied said earplug |
| US7512247B1 (en) * | 2002-10-02 | 2009-03-31 | Gilad Odinak | Wearable wireless ear plug for providing a downloadable programmable personal alarm and method of construction |
| KR20090003239U (en) * | 2007-10-02 | 2009-04-07 | (주) 멀티웨이브 | Water-resistant in-the-ear hearing aid |
| US20100307859A1 (en) * | 2007-12-21 | 2010-12-09 | Earsonics | Acoustic device for linear perceived-sound attenuation |
| CN201893908U (en) * | 2010-12-18 | 2011-07-06 | 珠海隆凯医疗设备有限公司 | Filter and antinoise earplug |
| TWM469701U (en) * | 2013-10-14 | 2014-01-01 | Cheng Uei Prec Ind Co Ltd | Tunable earphone |
| FR2997010A1 (en) * | 2012-10-24 | 2014-04-25 | Michel Meziani | Auditory protection device for use on e.g. helmet, to protect auditory canal of ear of human being against noise, has filtering unit mounted to move in main body according to preset fixed positions corresponding to preset filtering level |
| FR3023159A1 (en) * | 2014-07-01 | 2016-01-08 | Michel Meziani | HEARING PROTECTION DEVICE |
| CN207638830U (en) * | 2017-09-30 | 2018-07-20 | 江阴思安塑胶防护科技有限公司 | Muffler and noise reduction earplug including it |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2538313Y (en) * | 2001-12-27 | 2003-03-05 | 黄新富 | Earplug |
| US8161975B2 (en) * | 2009-05-21 | 2012-04-24 | Moldex-Metric, Inc. | Dual mode impulse noise protecting earplug (D-182) |
| TW201438474A (en) * | 2013-03-18 | 2014-10-01 | Obo Pro 2 Inc | Headset |
| DE202013009637U1 (en) * | 2013-10-31 | 2013-11-22 | Dirk Janssen | Hearing protection device |
| CN206239601U (en) * | 2016-07-25 | 2017-06-13 | 珠海卓力声科技有限公司 | Earplug filters fuse and earplug |
-
2017
- 2017-09-30 CN CN201710937801.4A patent/CN107750021B/en active Active
- 2017-10-30 WO PCT/CN2017/108298 patent/WO2019061637A1/en active Application Filing
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4532649A (en) * | 1983-07-03 | 1985-07-30 | Gaspare Bellafiore | Hearing aid |
| DE8906695U1 (en) * | 1989-06-01 | 1989-07-13 | Robert Bosch Gmbh, 7000 Stuttgart, De | |
| DE69918490D1 (en) * | 1998-04-29 | 2004-08-12 | Cabot Safety Intermediate Corp | Selective nonlinear earplug |
| EP1078615A1 (en) * | 1999-08-19 | 2001-02-28 | Kurer, Walter | Hearing protector |
| US7512247B1 (en) * | 2002-10-02 | 2009-03-31 | Gilad Odinak | Wearable wireless ear plug for providing a downloadable programmable personal alarm and method of construction |
| CN2714023Y (en) * | 2004-06-18 | 2005-08-03 | 刘月明 | Earplug and device applied said earplug |
| KR20090003239U (en) * | 2007-10-02 | 2009-04-07 | (주) 멀티웨이브 | Water-resistant in-the-ear hearing aid |
| US20100307859A1 (en) * | 2007-12-21 | 2010-12-09 | Earsonics | Acoustic device for linear perceived-sound attenuation |
| CN201893908U (en) * | 2010-12-18 | 2011-07-06 | 珠海隆凯医疗设备有限公司 | Filter and antinoise earplug |
| FR2997010A1 (en) * | 2012-10-24 | 2014-04-25 | Michel Meziani | Auditory protection device for use on e.g. helmet, to protect auditory canal of ear of human being against noise, has filtering unit mounted to move in main body according to preset fixed positions corresponding to preset filtering level |
| TWM469701U (en) * | 2013-10-14 | 2014-01-01 | Cheng Uei Prec Ind Co Ltd | Tunable earphone |
| FR3023159A1 (en) * | 2014-07-01 | 2016-01-08 | Michel Meziani | HEARING PROTECTION DEVICE |
| CN207638830U (en) * | 2017-09-30 | 2018-07-20 | 江阴思安塑胶防护科技有限公司 | Muffler and noise reduction earplug including it |
Non-Patent Citations (2)
| Title |
|---|
| 佚名: "首款AR智能耳塞:可选择性降噪", 《信息技术与信息化》 * |
| 盛惠娟: "防噪耳塞综述及探讨", 《中国个体防护装备》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019061637A1 (en) | 2019-04-04 |
| CN107750021B (en) | 2024-04-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE112013003105B4 (en) | Earphones with controlled acoustic outlet opening | |
| EP1874080A3 (en) | Earphones | |
| CN107517422A (en) | Muffler and the noise reduction earplug for including it | |
| CN204229830U (en) | Composite resonant sound absorption structure | |
| CN105527816B (en) | It is provided with the music or correct-time-giving watch of acoustic radiating devices | |
| US20160261944A1 (en) | Earpiece | |
| CN206524921U (en) | Loudspeaker enclosure | |
| CN106101950A (en) | Mobile terminal | |
| CN207638830U (en) | Muffler and noise reduction earplug including it | |
| EP1562400B1 (en) | Replaceable protective membrane of listening device of hearing-aids | |
| CN207638829U (en) | Muffler and noise reduction earplug including it | |
| JP2013085310A (en) | Hearing protection earplug | |
| CN107750021A (en) | Muffler and the noise reduction earplug for including it | |
| US20060045284A1 (en) | Hearing protection earplug, method for manufacturing the same and method for detecting an earplug | |
| CN104967934A (en) | Vibrator suitable for miniwatt bone conduction earphone | |
| WO2019010864A1 (en) | Noise filter and earplug comprising same | |
| CN105719638A (en) | Composite resonance sound absorption structure | |
| CN208511328U (en) | Selecting type muffler and noise reduction earplug including it | |
| CN207968792U (en) | A kind of audio-frequence player device | |
| CN107684488B (en) | Selectable muffler and noise reduction earplug comprising same | |
| CN206364986U (en) | Improve the earphone of low frequency characteristic | |
| CN204887350U (en) | High -power oscillator suitable for osteoacusis earphone | |
| CN203632862U (en) | Bone conduction earphone | |
| CN208806943U (en) | A kind of headphone of noise reduction | |
| CN203801058U (en) | Earphone sleeve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |