CN109246522A - Portable bone conduction earphone - Google Patents
Portable bone conduction earphone Download PDFInfo
- Publication number
- CN109246522A CN109246522A CN201811290022.0A CN201811290022A CN109246522A CN 109246522 A CN109246522 A CN 109246522A CN 201811290022 A CN201811290022 A CN 201811290022A CN 109246522 A CN109246522 A CN 109246522A
- Authority
- CN
- China
- Prior art keywords
- fixed
- earphone
- portable
- portable pillar
- frame
- 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.)
- Pending
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Classifications
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- 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
- H04R1/1091—Details not provided for in groups H04R1/1008 - H04R1/1083
-
- 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
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
The invention discloses a kind of portable bone conduction earphones, the first fixed frame and the second fixed frame including a pair of rotatable headset body and for headset body to be fixed on to shoulders of human body further include two for controlling the elevating mechanism and two rotating mechanisms for driving headset body to be freely rotated that headset body elongation is shortened；Pass through the setting of above structure, allow the shoulder for being fixed on human body that the earphone is reliable and stable, the headache sense that can be generated in this way to avoid headphone, improve the comfort level of human body, and the adjusting of position can be carried out to the earphone, in order to which people are adjusted the position of earphone according to the comfort level of oneself, the scope of application of earphone is increased, the practicability of earphone is improved.
Description
Technical field
The invention belongs to game station fields, more particularly, to a kind of portable bone conduction earphone.
Background technique
Along with deeply developing for game industry, electronic game has gradually penetrated into the various aspects of people's amusement, life,
Gaming headset --- it is of interest by more and more game players as the assistant product of electronic game.
A kind of optical-fiber wireless gaming headset, the earphone are disclosed in the open file that presently disclosed number is CN205726237U
Other than it can solve chat source of sound processing, also each music sound source can independently be controlled；But after the earphone has been worn long,
Headache sense is had, and listens the damage that will cause hearing long afterwards, while the earphone figure is larger, carrying is got up, very inconvenient.
Summary of the invention
For overcome the deficiencies in the prior art, provide one kind can be reduced hearing impairment and effectively headache sense is avoided to produce the present invention
Raw portable bone conduction earphone.
To achieve the goals above, the invention adopts the following technical scheme: a kind of portable bone conduction earphone, including a pair
Rotatable headset body and the first fixed frame and the second fixed frame for headset body to be fixed on to shoulders of human body further include
Two for controlling the elevating mechanism and two whirlers for driving headset body to be freely rotated that headset body elongation is shortened
Structure；By the setting of above structure, allow the shoulder for being fixed on human body that the earphone is reliable and stable, it in this way can be to avoid head
The headache sense that headset generates improves the comfort level of human body, and can carry out the adjusting of position to the earphone, in order to people
It is adjusted according to position of the comfort level of oneself to earphone, increases the scope of application of earphone, improve the practicability of earphone.
Further, first fixed frame and the second fixed frame include the first fixed part and the second fixed part, described
The angle of the angle between the first fixed part of control and the second fixed part is respectively provided on first fixed frame and the second fixed frame
Spend regulating mechanism；By the setting of above-mentioned first fixed part and the second fixed part, allow earphone by the first fixed frame and
The adaptation to shoulders of human body is realized in the cooperation of second fixed frame, carries out real use, and angle in order to adjust to the position of the most comfortable
Degree adjustment structure effectively enhance fixed force of the earphone on shoulders of human body, allow earphone it is stronger be placed on shoulder
Portion improves reliability.
Further, the elevating mechanism includes for driving headset body to carry out the portable pillar of lifting moving, for supplying
Portable pillar carries out the fixed cylinder of elevating movement, and the fixed cylinder is equipped with the control machine for limiting the mobile height of portable pillar
Structure；By the setting of above structure, can the height effectively to portable pillar in fixed cylinder be adjusted, in order to realize ear
The height adjustment of machine effectively raises earphone to the adaptability of human body, so that people make so that earphone more adapts to human body
Use more comfortable, and portable pillar is adjusted to certain altitude, can automatic braking, avoid portable pillar from falling automatically, and shadow
The use for ringing earphone, effectively raises the reliability of structure；Simultaneously in order to which portable pillar lowers, so that earphone one
It rises and lowers, in order to the length of shortening earphone, carried so that earphone is more convenient.
Further, the rotating mechanism includes fixed block, the connecting rod on fixed block and for connecting earphone sheet
The connected ball of body, the headset body are equipped with the fixing groove matched with connected ball；Pass through above-mentioned setting for rotating mechanism
It sets, so that earphone can be rotated freely in portable pillar, in order to which people can adjust earphone at any time when wearing earphone
Angle increase the scope of application of the earphone so that earphone adapts to the position of ear, the use improved to the earphone is comfortable
Degree.
Further, the angle adjusting mechanism includes the driving member being fixedly arranged on the first fixed part, is set to the second fixation
It regulating device in portion and is flexibly connected for the chamber for adjustment device work, first fixed part and the second fixed part；
By the above-mentioned setting for angle adjusting mechanism, so that the folder of both the first fixed frame and the second fixed frame are adjustable bracket
Angle angle, so that people are when fixing the earphone, it can be according to itself to the angle between the first fixed frame and the second fixed frame
Be adjusted, in order to preferably be embedded in shoulders of human body, realize the fixed effect of earphone, increase comfort when earphone uses and
Fixed reliability.
Further, the control structure includes control block for controlling the adjustable height of portable pillar, for accommodating control
Clamp dog carries out the first elastic component that mobile movable chamber and multiple equidistant intervals are set in movable chamber, and the control block is equipped with the
One cambered surface；By the setting of above structure, the control to the adjustable height of portable pillar can be effectively realized, it can be in portable pillar
When lifting to the height needed, portable pillar is braked, avoids portable pillar generation from moving again, improves portable pillar
Stability allows portable pillar is stable to be supported to earphone, improves the stability of strutting system of the earphone.
Further, the regulating device includes adjusting rod for controlling the braking of driving member and for connecting adjusting rod
With the second elastic component of chamber, the adjusting rod is equipped with the support rod for being used to support adjusting rod, and the adjusting rod, which is equipped with, to be used
In the regulation handle for loosening adjusting rod, first fixed part is equipped with the loose slot matched with regulation handle；By above-mentioned
The setting of structure, the effect that effectively the first fixed frame and the second fixed frame member can be braked, so that the first fixed frame
With the second fixed frame can be solid and reliable fixing human shoulder, avoid falling off and influencing usage experience, and can be to tight
The first fixed frame and the second fixed frame after Gu are loosened, in order to take off earphone from shoulder, while in order to collapse
First fixed frame and the second fixed frame, in order to be collected to earphone, in order to the carrying to earphone.
Further, connection frame is equipped between first fixed frame and the second fixed frame, the connection frame includes first
Connection frame and the second connection frame are respectively equipped with vertical portion on first connection frame and the second connection frame and for adapting to human body neck
The camber portion in portion, first connection frame are flexibly connected with the second connection frame；By the setting of above structure, first can be consolidated
Determine frame and the second fixed frame directly bent, in order to more easily be collected to earphone, improves the portability of earphone,
The setting of the first connection frame and the second connection frame can be fixed more comfortably so that earphone more adapts to the structure of human body simultaneously
On human body, comfort when earphone uses is improved.
Further, the fixed cylinder is equipped with the limiting slot for being oriented to portable pillar, sets in the portable pillar
There is the guide pad matched with limiting slot；The portable pillar is equipped with the driving rack matched with control block；The portable pillar
On be additionally provided with for avoid portable pillar be detached from limit plate；By the setting of above structure, allow portable pillar more stable
The movement gone up and down improves the stability of portable pillar when moving, avoids shifting when portable pillar is mobile, and limit plate
Setting can rise excessively to avoid portable pillar when being moved up, and portable pillar is caused to be detached from, and improve and live
Dynamic stability of the column in lifting moving.
The invention has the following advantages that originally portable bone conduction earphone, can effective root by the setting of above structure
According to human body adjust automatically, in order to adapt to human body, so that earphone is adapted to different crowds, increase being applicable in for earphone
Range, it is very practical, and each position of the earphone is removable, and the contraction and folding of earphone may be implemented, effectively mention
The high portability of earphone, while the earphone can be fixed on shoulders of human body, avoid being fixed on headache etc. caused by head and ask
Topic, and do not contacted directly with ear, the damage of hearing can be reduced, very health and health.
Detailed description of the invention
Fig. 1 is three-dimensional structure diagram of the invention.
Fig. 2 is the schematic enlarged-scale view at the A in Fig. 1.
Fig. 3 is the three-dimensional cutaway view one of Fig. 1.
Fig. 4 is the schematic enlarged-scale view at the B in Fig. 3.
Fig. 5 is the schematic enlarged-scale view at the C in Fig. 4.
Fig. 6 is the three-dimensional cutaway view two of Fig. 1.
Fig. 7 is the schematic enlarged-scale view at the D in Fig. 6.
Fig. 8 is the schematic enlarged-scale view at the E in Fig. 6.
Fig. 9 is the three-dimensional structure diagram of the rotating mechanism in Fig. 1.
Specific embodiment
In order to make those skilled in the art better understand the present invention program, below in conjunction in the embodiment of the present invention
Attached drawing, the technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
A part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The model that the present invention protects all should belong in member's every other embodiment obtained without making creative work
It encloses.
As shown in figs 1-9, a kind of portable bone conduction earphone, including a pair of rotatable headset body 1 and for by ear
Machine ontology 1 is fixed on the first fixed frame 21 and the second fixed frame 22 of shoulders of human body, further includes two for controlling headset body 1
The elevating mechanism shortened and two rotating mechanisms for driving headset body 1 to be freely rotated are extended, setting for above structure is passed through
It sets, allows the shoulder for being fixed on human body that the earphone is reliable and stable, the headache that can be generated in this way to avoid headphone
Sense improves the comfort level of human body, and can carry out the adjusting of position to the earphone, in order to which people are according to the comfort level pair of oneself
The position of earphone is adjusted, and increases the scope of application of earphone, improves the practicability of earphone；Above-mentioned headset body is current
Existing bone conduction earphone in the market is the prior art, and details are not described herein again, on the inner wall of the first fixed frame and the second fixed frame
Comfort level equipped with one layer of foam-rubber cushion, when improving fixed.
First fixed frame 21 and the second fixed frame 22 are described including the first fixed part 211 and the second fixed part 212
It is respectively provided on first fixed frame 21 and the second fixed frame 22 between the first fixed part 211 of control and the second fixed part 212
The angle adjusting mechanism of angle allow earphone by by the setting of above-mentioned first fixed part and the second fixed part
The adaptation to shoulders of human body is realized in the cooperation of one fixed frame and the second fixed frame, is carried out in fact in order to adjust to the position of the most comfortable
It uses, and angle adjustment mechanism effectively enhances fixed force of the earphone on shoulders of human body, allows earphone stronger
Be placed on shoulder, improve reliability, between first fixed frame 21 and the second fixed frame 22 be equipped with connection frame 23,
The connection frame 23 includes the first connection frame 231 and the second connection frame 232, first connection frame 231 and the second connection frame 232
On be respectively equipped with vertical portion 2311 and the camber portion 2312 for adapting to neck, first connection frame 231 and second connects
The flexible connection of frame 232 is connect, by the setting of above structure, the first fixed frame and the second fixed frame can directly be bent,
In order to more easily being collected to earphone, the portability of earphone is improved, while the first connection frame and the second connection frame
Setting on the human body that can more comfortably fix, improves comfortable when earphone uses so that earphone more adapts to the structure of human body
Property；Above-mentioned first fixed frame and the second fixed frame can mutually be drawn close, and can also be expanded outwardly, and the first connection frame and second connects
Frame is connect when collecting to earphone, the effect folded may be implemented, in order to collect to earphone.
The angle adjusting mechanism includes the driving member 213 being fixedly arranged on the first fixed part 211, is set to the second fixed part
Regulating device on 212 and for the chamber 214 for adjustment device work, first fixed part 211 and the second fixed part 212
It is flexibly connected, by the above-mentioned setting for angle adjusting mechanism, so that the first fixed frame and the second fixed frame adjustable two
The included angle of person's bracket, so that people are when fixing the earphone, it can be according to itself to the first fixed frame and the second fixed frame
Between angle be adjusted, in order to preferably be embedded in shoulders of human body, the fixed effect of earphone is realized, when increasing earphone and using
Comfort and fixed reliability；The regulating device includes the adjusting rod 215 and use for controlling the braking of driving member 213
In the second elastic component 216 of connection adjusting rod 215 and chamber 214, the adjusting rod 215 is equipped with and is used to support adjusting rod 215
Support rod 2151, the adjusting rod 215 is equipped with regulation handle 2152 for loosening adjusting rod 215, and described first is fixed
Portion 211 is equipped with the loose slot 217 that matches with regulation handle 2152, can be effectively to the by the setting of above structure
The effect that one fixed frame and the second fixed frame member are braked, allows the first fixed frame and the second fixed frame solid and reliable
Fixing human shoulder avoids falling off and influencing usage experience, and can fix to the first fixed frame and second after fastening
Frame is loosened, in order to which earphone is taken off from shoulder, while in order to collapse the first fixed frame and the second fixed frame, so as to
It is collected in earphone, in order to the carrying to earphone.
Above-mentioned driving member uses ratchet to be arranged in the present embodiment, and the first elastic component and the second elastic component are all made of spiral bullet
Spring setting, when needing to collapse the first fixed part and the second fixed part, the first fixed part is rotated clockwise, and is driven and is passed
Moving part rotates clockwise, and driving member can squeeze rotatable adjusting rod outward, and the second elastic component is expanded, and after stopping operating, it adjusts
Pole can block ratchet by support rod, brake to ratchet, thus realize the gathering of the first fixed part and the second fixed part,
And can not be rotated further by, when needing to open the first fixed part and the second fixed part, regulation handle is stirred, so that adjusting rod is inclined upwards
Turn, adjusting rod after opening the first fixed part and the second fixed part, is reversed original by regulation handle so as to rotate by ratchet
The braking to ratchet is realized in position, so that can not collapse, play fixed after the first fixed part and the second fixed part open
Effect.
The elevating mechanism includes for driving headset body 1 to carry out the portable pillar 31 of lifting moving, for for portable pillar
31 carry out the fixed cylinder 32 of elevating movement, and the fixed cylinder 32 is equipped with the control machine for limiting the mobile height of portable pillar 31
Structure, by the setting of above structure, can the height effectively to portable pillar in fixed cylinder be adjusted, in order to realize ear
The height adjustment of machine effectively raises earphone to the adaptability of human body, so that people make so that earphone more adapts to human body
Use more comfortable, and portable pillar is adjusted to certain altitude, can automatic braking, avoid portable pillar from falling automatically, and shadow
The use for ringing earphone, effectively raises the reliability of structure；Simultaneously in order to which portable pillar lowers, so that earphone one
It rises and lowers, in order to the length of shortening earphone, carried so that earphone is more convenient；The control structure includes for controlling
The control block 321 of the adjustable height of portable pillar 31 carries out mobile movable chamber 322 and multiple equidistant for accommodating control block 321
Interval is set to the first elastic component 323 in movable chamber 322, and the control block 321 is equipped with the first cambered surface 3211, passes through above-mentioned knot
The setting of structure can effectively realize the control to the adjustable height of portable pillar, can go up and down in portable pillar to the height of needs
When, portable pillar is braked, avoids portable pillar generation from moving again, the stability of portable pillar is improved, so that movable
Column stable can be supported earphone, improve the stability of strutting system of the earphone.
Above-mentioned portable pillar can free lifting moving, above-mentioned control block can be by the first elastic component in fixed cylinder
Stretching motion, the driving rack when rising or falling under tearing of the portable pillar in manpower, in portable pillar are carried out in movable chamber
It rises with it, during rising, the first cambered surface of control block is in contact with driving rack, and the first cambered surface can reduce transmission
The frictional force between control block when rack gear is mobile, so that driving rack movement is more smooth, driving rack is being moved up
Or during moving down, control block can ceaselessly stretching motion, when stopping the driving to portable pillar, control block can be stuck in
The recess of driving rack, plays the effect of fixed portable pillar, and the elasticity of the first elastic component can only be realized under the action of manpower
It shrinks.
The fixed cylinder 32 is equipped with the limiting slot 324 for being oriented to portable pillar 31, sets in the portable pillar 31
There is the guide pad 311 matched with limiting slot 324；The portable pillar 31 is equipped with the driving rack matched with control block 321
312；The limit plate 313 for avoiding portable pillar 31 from being detached from is additionally provided in the portable pillar 31；By the setting of above structure, make
The movement go up and down that portable pillar can be more stable is obtained, the stability of portable pillar when moving is improved, avoids portable pillar mobile
When shift, and the setting of limit plate can rise excessively to avoid portable pillar when being moved up, and cause
Portable pillar is detached from, and improves stability of the portable pillar in lifting moving；Above-mentioned portable pillar is by guide pad in limiting slot
Movement of the mobile realization in fixed cylinder effect, limit plate is located at the bottom of portable pillar, for avoiding portable pillar from rising
Degree, and it is detached from fixed cylinder.
The rotating mechanism includes fixed block 41, the connecting rod 42 on fixed block 41 and for connecting headset body 1
Connected ball 43, the headset body 1 is equipped with the fixing groove 44 that matches with connected ball 43, by above-mentioned for rotating mechanism
Setting so that earphone can be rotated freely in portable pillar, in order to which people can adjust at any time when wearing earphone
The angle of earphone increases the scope of application of the earphone, improves the use to the earphone so that earphone adapts to the position of ear
Comfort level, above-mentioned headset body can realize the effect of the rotation in each orientation by fixing groove and connected ball, in order to adjust
It is worn over the position of ear.
Claims (9)
1. a kind of portable bone conduction earphone, including a pair of rotatable headset body (1) and for headset body (1) is fixed
In the first fixed frame (21) and the second fixed frame (22) of shoulders of human body；It is characterized by also including two for controlling earphone
The elevating mechanism and two rotating mechanisms for driving headset body (1) to be freely rotated that ontology (1) elongation is shortened.
2. portable bone conduction earphone according to claim 1, it is characterised in that: first fixed frame (21) and second
Fixed frame (22) includes the first fixed part (211) and the second fixed part (212), and first fixed frame (21) and second are fixed
The angular adjustment of the angle between control the first fixed part (211) and the second fixed part (212) is respectively provided on frame (22)
Mechanism.
3. portable bone conduction earphone according to claim 1, it is characterised in that: the elevating mechanism includes for driving
Headset body (1) carries out the portable pillar (31) of lifting moving, the fixed cylinder (32) for carrying out elevating movement for portable pillar (31),
The fixed cylinder (32) is equipped with the control mechanism for limiting portable pillar (31) mobile height.
4. portable bone conduction earphone according to claim 1, it is characterised in that: the rotating mechanism includes fixed block
(41), the connecting rod (42) on fixed block (41) and the connected ball (43) for connecting headset body (1), the earphone sheet are set to
Body (1) is equipped with the fixing groove (44) matched with connected ball (43).
5. portable bone conduction earphone according to claim 2, it is characterised in that: the angle adjusting mechanism includes fixed
In the driving member (213) on the first fixed part (211), the regulating device on the second fixed part (212) and for for adjusting
The chamber (214) of device work, first fixed part (211) and the second fixed part (212) are flexibly connected.
6. portable bone conduction earphone according to claim 3, it is characterised in that: the control structure includes for controlling
The control block (321) of the adjustable height of portable pillar (31), for accommodate control block (321) carry out mobile movable chamber (322) and
Multiple equidistant intervals are set to the first elastic component (323) in movable chamber (322), and the control block (321) is equipped with the first cambered surface
(3211).
7. portable bone conduction earphone according to claim 5, it is characterised in that: the regulating device includes for controlling
The adjusting rod (215) of the braking of driving member (213) and the second elastic component for connecting adjusting rod (215) and chamber (214)
(216), the adjusting rod (215) is equipped with the support rod (2151) for being used to support adjusting rod (215), the adjusting rod (215)
It is equipped with the regulation handle (2152) for loosening adjusting rod (215), first fixed part (211) is equipped with and regulation handle
(2152) loose slot (217) matched.
8. portable bone conduction earphone according to claim 2, it is characterised in that: first fixed frame (21) and second
Connection frame (23) are equipped between fixed frame (22), the connection frame (23) includes the first connection frame (231) and the second connection frame
(232), vertical portion (2311) is respectively equipped on first connection frame (231) and the second connection frame (232) and for adapting to people
The camber portion (2312) of body neck, first connection frame (231) are flexibly connected with the second connection frame (232).
9. portable bone conduction earphone according to claim 6, it is characterised in that: the fixed cylinder (32) is equipped with and is used for
To the limiting slot (324) that portable pillar (31) is oriented to, the portable pillar (31) is equipped with and leads with what limiting slot (324) matched
To block (311)；The portable pillar (31) is equipped with the driving rack (312) matched with control block (321)；The portable pillar
(31) limit plate (313) for avoiding portable pillar (31) from being detached from is additionally provided on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811290022.0A CN109246522A (en) | 2018-10-31 | 2018-10-31 | Portable bone conduction earphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811290022.0A CN109246522A (en) | 2018-10-31 | 2018-10-31 | Portable bone conduction earphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109246522A true CN109246522A (en) | 2019-01-18 |
Family
ID=65080018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811290022.0A Pending CN109246522A (en) | 2018-10-31 | 2018-10-31 | Portable bone conduction earphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109246522A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112055281A (en) * | 2020-09-19 | 2020-12-08 | 深圳市三德大康电子有限公司 | Bone conduction sound production device |
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| CN103498830A (en) * | 2013-10-15 | 2014-01-08 | 山东森德数控机械有限公司 | Adjustable driving device for initial angle and rotation angle of pipe rolling machine crank shaft |
| CN203813933U (en) * | 2014-04-23 | 2014-09-03 | 昆明理工大学 | Shoulder clamp adjustable earphone |
| CN204119448U (en) * | 2014-08-25 | 2015-01-21 | 钟小燕 | The spectacle frame of bone conduction earphone equipment and application bone conduction earphone equipment and dress ornament |
| CN204425582U (en) * | 2015-02-02 | 2015-06-24 | 东莞市联恒电子有限公司 | Collapsible back-wear type English earphone |
| CN204652618U (en) * | 2015-05-08 | 2015-09-16 | 上海电机学院 | Earphone |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498830A (en) * | 2013-10-15 | 2014-01-08 | 山东森德数控机械有限公司 | Adjustable driving device for initial angle and rotation angle of pipe rolling machine crank shaft |
| CN203813933U (en) * | 2014-04-23 | 2014-09-03 | 昆明理工大学 | Shoulder clamp adjustable earphone |
| CN204119448U (en) * | 2014-08-25 | 2015-01-21 | 钟小燕 | The spectacle frame of bone conduction earphone equipment and application bone conduction earphone equipment and dress ornament |
| CN204425582U (en) * | 2015-02-02 | 2015-06-24 | 东莞市联恒电子有限公司 | Collapsible back-wear type English earphone |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112055281A (en) * | 2020-09-19 | 2020-12-08 | 深圳市三德大康电子有限公司 | Bone conduction sound production device |
| CN112055281B (en) * | 2020-09-19 | 2022-10-04 | 深圳市三德大康电子有限公司 | Bone conduction sound production device |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20190118 |