CN110881151B - Clamping force adjustable headset - Google Patents
Clamping force adjustable headset Download PDFInfo
- Publication number
- CN110881151B CN110881151B CN201911017401.7A CN201911017401A CN110881151B CN 110881151 B CN110881151 B CN 110881151B CN 201911017401 A CN201911017401 A CN 201911017401A CN 110881151 B CN110881151 B CN 110881151B
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- sound generating
- generating unit
- hole
- clamping force
- groove
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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
- H04R1/1058—Manufacture or assembly
- H04R1/1075—Mountings of transducers in earphones or headphones
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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
- H04R1/105—Earpiece supports, e.g. ear hooks
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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
- H04R1/1058—Manufacture or assembly
- H04R1/1066—Constructional aspects of the interconnection between earpiece and earpiece support
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Manufacturing & Machinery (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Headphones And Earphones (AREA)
Abstract
The invention belongs to the technical field of headsets, and particularly relates to a clamping force adjustable headset which comprises an arc-shaped headset hoop and two sound generating units, wherein an adjusting structure is arranged between each sound generating unit and the end part of the corresponding side of the headset hoop; the head band comprises an inner support and an outer support, wherein two end parts of the peripheral side surface of the outer support are respectively provided with a long groove, one side wall of each long groove is provided with a rack, and the bottom surface of each long groove is provided with a long through hole of the outer support; the adjusting structure comprises a gear which is arranged in the long groove and meshed with the rack, and a rotating shaft which is coaxially arranged with the gear and fixedly connected together, wherein the rotating shaft penetrates through the long through hole of the outer support, and the inner support is inserted into the sound generating unit and is in threaded transmission connection with the sound generating unit. The clamping force adjustable headset solves the problem that the clamping force between two sounding units of the existing headset cannot be adjusted, can adjust the clamping force according to different requirements, and is very convenient to use.
Description
Technical Field
The invention belongs to the technical field of headsets, and particularly relates to a headset with adjustable clamping force.
Background
A general headphone includes a head band, and a sound generating unit installed at both ends of the head band, and in order to adapt the headphone to different users, a position of the sound generating unit can be adjusted along the head band. Clamping force between two sound producing units of headphone mainly is through the deformation production that the headband takes place, and at present, headphone's clamping force can't be adjusted as required, and clamping force between two sound producing units can't be guaranteed and different users are applicable to, perhaps same user is to the needs of different tight degrees of clamp, uses unusual inconvenient.
Disclosure of Invention
The invention aims to provide a clamping force adjustable headset, aims to solve the problem that the clamping force between two sounding units of the existing headset cannot be adjusted, can adjust the clamping force between the two sounding units of the headset according to the requirements of different users or the requirements of the same user on different clamping degrees, and is very convenient to use.
The invention discloses a clamping force adjustable headset which comprises an arc-shaped headset band and two sound generating units respectively arranged at the inner sides of two ends of the headset band, wherein an adjusting structure is respectively arranged between each sound generating unit and the end part of the corresponding side of the headset band; the head band comprises an inner support and an outer support arranged on the outer peripheral side of the inner support, long grooves arranged along the extending direction of the outer support are respectively arranged at two end parts of the outer peripheral side surface of the outer support, racks are arranged on one side wall of each long groove, and long through holes of the outer support arranged along the extending direction of the outer support are arranged on the bottom surface of each long groove; the adjusting structure comprises a gear which is arranged in the long groove and meshed with the rack, and a rotating shaft which is coaxially arranged with the gear and fixedly connected together, wherein the rotating shaft penetrates through the long through hole of the outer support, and the inner support is inserted into the sound generating unit and is in threaded transmission connection with the sound generating unit.
As an improvement, the sound generating unit is provided with a containing hole, and the rotating shaft is inserted into the containing hole and is in threaded transmission connection with the containing hole.
As an improvement, a thread transmission part is arranged at one end of the rotating shaft close to the sound production unit, and at least two rotating shaft salient points inserted into thread grooves of the thread transmission part are arranged on the inner side wall of the accommodating hole at intervals in the circumferential direction.
As an improvement, the external diameter of screw thread transmission portion is greater than the external diameter of pivot, the holding hole sets up sound generating unit's inside correspond be equipped with on sound generating unit's the casing with the coaxial casing through-hole that sets up in holding hole, the aperture of casing through-hole is less than the aperture in holding hole.
As an improvement, a clamping structure is arranged between the bottom surface of the long groove and the side surface of the gear, and the clamping structure comprises clamping protrusions arranged on the bottom surface of the long groove and a plurality of clamping holes arranged on the side surface of the gear at intervals along the circumferential direction.
As an improvement, the head band further comprises a housing disposed at the outer periphery of the outer support and fixedly connected with the outer support, a cavity is respectively formed between the housing and the elongated grooves at the two ends of the outer periphery of the outer support, and the gear is defined in the cavity.
As an improvement, a connecting structure is arranged between the rotating shaft and the inner support, the connecting structure comprises a retainer fixedly connected with the inner support and a sliding block slidably mounted on the retainer, an inner support elongated through hole arranged along the extension direction of the inner support is arranged on the inner support corresponding to the retainer, and the rotating shaft penetrates through the sliding block and the inner support elongated through hole.
As an improvement, a clamping groove is arranged on the side surface of the inner support far away from the outer support, the retainer is fixedly arranged in the clamping groove, and the long through hole of the inner support is arranged on the bottom surface of the clamping groove; the retainer is provided with a sliding groove arranged along the extension direction of the inner support, and the sliding block is arranged on the sliding groove in a sliding manner; the sliding block comprises an outer cover arranged on one side, close to the earphone unit, of the sliding groove and an inner cover arranged on one side, close to the inner support, of the sliding groove, and the outer cover is fixedly connected with the inner cover.
As an improvement, a limiting structure is arranged between the sliding block and the retainer, and the limiting structure comprises a limiting bulge arranged on the inner cover and a plurality of limiting grooves which are correspondingly arranged on the retainer part at the side edge of the sliding groove and are arranged at intervals along the extending direction of the sliding groove.
As an improvement, an elastic arm is arranged between the limiting bulge and the inner cover.
Due to the adoption of the technical scheme, the clamping force adjustable headset comprises an arc-shaped head band and two sound generating units which are respectively arranged at the inner sides of the two ends of the head band, and an adjusting structure is respectively arranged between each sound generating unit and the end part of the corresponding side of the head band; the head band comprises an inner support and an outer support arranged on the outer peripheral side of the inner support, two end parts of the outer peripheral side surface of the outer support are respectively provided with a long groove arranged along the extending direction of the outer support, one side wall of the long groove is provided with a rack, and the bottom surface of the long groove is provided with a long through hole of the outer support arranged along the extending direction of the outer support; the adjusting structure comprises a gear which is arranged in the long groove and meshed with the rack, and a rotating shaft which is coaxially arranged with the gear and fixedly connected together, wherein the rotating shaft penetrates through the long through hole of the outer support, and the inner support is inserted into the sound generating unit and is in threaded transmission connection with the sound generating unit. The clamping force adjustable headset solves the problem that the clamping force between the two sounding units of the existing headset cannot be adjusted according to the requirements of different users or the requirements of the same user on different clamping degrees, and the clamping force between the two sounding units of the headset can be adjusted according to the requirements of different users or the requirements of the same user on different clamping degrees, and the headset can be adjusted without being taken down from the head of the user, so that the use is very convenient.
Drawings
Fig. 1 is a schematic front view of a clamping force adjustable headphone according to an embodiment of the present invention;
FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;
fig. 3 is an exploded view of a clamping force adjustable headphone according to an embodiment of the present invention;
fig. 4 is a schematic side view of a clamping force adjustable headphone according to an embodiment of the invention;
the device comprises an outer support 11, an outer support 111, a long groove 112, a rack 113, a long through hole of the outer support 114, a clamping protrusion 12, an inner support 121, a clamping groove 122, a long through hole of the inner support 13, a shell 20a, a sound unit 20b, a sound unit 21, a containing hole 22, a rotating shaft salient point 31, a rotating shaft 32, a threaded transmission part 33, a gear 331, a clamping hole 34, a clamping spring 41, a retainer 411, a sliding groove 412, a limiting groove 42, an inner cover 421, a limiting protrusion 43 and an outer cover.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Fig. 1 to 4 are schematic structural diagrams of a clamping-force-adjustable headphone according to an embodiment of the present invention, where fig. 1 shows a schematic structural diagram of a clamping-force-adjustable headphone according to an embodiment of the present invention in a front view, fig. 2 shows an enlarged structural diagram at a point a in fig. 1, fig. 3 shows a schematic structural diagram of an explosion of the clamping-force-adjustable headphone according to an embodiment of the present invention, and fig. 4 shows a schematic structural diagram of a clamping-force-adjustable headphone according to an embodiment of the present invention in a side view. For the sake of convenience, only the portions related to the embodiments of the present invention are shown in the drawings.
As can be seen from fig. 1, 2, 3 and 4, the clamping force adjustable headset comprises an arc-shaped head band, a sound generating unit 20a and a sound generating unit 20b respectively arranged at the inner sides of the two ends of the head band, and adjusting structures are respectively arranged between the sound generating unit 20a and the end part of the corresponding side of the head band and between the sound generating unit 20b and the end part of the corresponding side of the head band; the head band comprises an inner support 12 and an outer support 11 arranged on the outer periphery side of the inner support 12, two end parts of the outer periphery side surface of the outer support 11 are respectively provided with a long groove 111 arranged along the extending direction of the outer support 11, one side wall of the long groove 111 is provided with a rack 112, and the bottom surface of the long groove 111 is provided with a long through hole 113 of the outer support arranged along the extending direction of the outer support 11; the adjusting structure comprises a gear 33 which is arranged in the elongated groove 111 and meshed with the rack 112, and a rotating shaft 31 which is coaxially arranged with the gear 33 and fixedly connected together, wherein the rotating shaft 31 passes through the elongated through hole 113 of the outer bracket, and the inner bracket 12 is inserted into the sound generating unit and is in threaded transmission connection with the sound generating unit.
When a user wears the headset and feels that the clamping force between the sound generating unit 20a and the sound generating unit 20b is too large or too small, the user pushes or pulls the outer support 11 upwards, because the rack 112 is arranged on the side wall of the long groove 111 and can move synchronously with the outer support 11, relative motion is generated between the outer support 11 and the gear 33, the gear 33 is driven to rotate through the rack 112, the gear 33 can drive the rotating shaft 31 to rotate synchronously when rotating, because the sound generating unit 20a and the sound generating unit 20b respectively cling to two ears of the user and can not rotate after wearing the headset, and when relative rotation is generated between the rotating shaft 31 and the sound generating unit, the sound generating unit can be pushed to move close to or far away from the ears of the user, so that the adjustment of the clamping force is realized, the clamping force adjustable headset of the embodiment of the invention solves the problem that the clamping force between the two sound generating units of the existing headset can not be adjusted, can adjust the clamping-force between two vocal units of headphone according to different users' demand, perhaps same user to the demand of different tight degrees of clamp, need not take off headphone from the user head moreover and just can adjust, it is very convenient to use.
In this embodiment, a containing hole 21 is formed in the sound generating unit, the rotating shaft 31 is inserted into the containing hole 21, specifically, a threaded transmission portion 32 is formed at one end of the rotating shaft 31 close to the sound generating unit, and at least two rotating shaft protrusions 22 inserted into a threaded groove of the threaded transmission portion 32 are circumferentially spaced on an inner side wall of the containing hole 21.
Generally, the external diameter of screw drive portion 32 is greater than the external diameter of pivot 31, and holding hole 21 sets up in sound generating unit's inside, corresponds on sound generating unit's casing to be equipped with the casing through-hole with the coaxial setting in holding hole 21, and the aperture of this casing through-hole is less than the aperture of holding hole 21, can inject screw drive portion 32 in sound generating unit's inside, is convenient for link together pivot 31 and sound generating unit. A snap spring 34 is disposed at a position of the rotating shaft 31 close to the sound generating unit, and can limit a distance of the relative movement between the rotating shaft 31 and the sound generating unit in the axial direction.
In order to keep the relative position between the outer bracket 11 and the inner bracket 12 after adjustment, a clamping structure is arranged between the bottom surface of the long groove 111 and the side surface of the gear 33, the clamping structure comprises a clamping protrusion 114 arranged on the bottom surface of the long groove 111 and a plurality of clamping holes 331 arranged on the side surface of the gear 33 at intervals along the circumferential direction, the clamping protrusion 114 is separated from one clamping hole 331 when the gear 33 rotates and then clamped into the next clamping hole 331, and therefore not only can the self-locking and anti-loosening function after adjustment be realized, but also the rhythm feeling can be realized during adjustment. Of course, the snap protrusions 114 may be spaced apart from each other.
In this embodiment, the head band further includes a housing 13 disposed at an outer peripheral side of the outer support 11 and fixedly connected to the outer support 11, a cavity is formed between the housing 13 and the elongated grooves 111 at two ends of the outer peripheral side of the outer support 11, and the gear 33 is defined in the cavity, so that not only the holding performance of the outer support 11 is enhanced, but also the appearance performance of the outer support 11 can be improved.
In the present embodiment, a connection structure is provided between the rotating shaft 31 and the inner bracket 12, the connection structure includes a holder 41 fixedly connected to the inner bracket 12, and a slider slidably mounted on the holder 41, an inner bracket elongated through hole 122 provided on the inner bracket 12 corresponding to the holder 41 and extending along the extending direction of the inner bracket 12 is provided, and the rotating shaft 31 passes through the slider and the inner bracket elongated through hole 122. The relative position between the sound generating unit and the inner support 12 can be defined by the connecting structure and the position of the generating unit can be adjusted along the holder 41, so that the headphone can be adapted to the user.
Specifically, a clamping groove 121 is arranged on the side surface of the inner support 12 away from the outer support 11, the retainer 41 is fixedly arranged in the clamping groove 121, and the long through hole 122 of the inner support is arranged on the bottom surface of the clamping groove 121; a sliding groove 411 arranged along the extending direction of the inner bracket 12 is arranged on the holding frame 41, and the sliding block is slidably arranged on the sliding groove 411; the slider includes an outer cover 43 disposed on a side of the slide slot 411 adjacent to the earphone unit, and an inner cover 42 disposed on a side of the slide slot 411 adjacent to the inner housing 12, wherein the outer cover 43 is fixedly connected to the inner cover 42, and generally, a sliding portion passing through the slide slot 411 is provided on the outer cover 43, and the inner cover 42 is fixedly connected to the sliding portion.
In order to facilitate the position limitation of the slider, a position limitation structure is provided between the slider and the holder 41, the position limitation structure comprises a position limitation protrusion 421 provided on the inner lid 42 and a plurality of position limitation grooves 412 correspondingly provided on the holder 41 at the side of the sliding groove 411 and arranged at intervals along the extending direction of the sliding groove 411, and the position of the slider is limited by the engagement of the position limitation protrusion 421 and the position limitation grooves 412. In order to make the sliding between the sliding block and the sliding slot 411 more stable, the inner cover 42 is provided with a limit protrusion 421 at the position of the opposite two sides of the sliding slot 411 respectively, and the corresponding retainer 41 part at the opposite two sides of the sliding slot 411 is provided with a limit groove 412 respectively; usually, an elastic arm is further provided between the limit protrusion 421 and the inner lid 42 to facilitate the engagement and disengagement of the limit protrusion 421 with the limit groove 412.
The above description is only exemplary of the present invention and should not be taken as limiting the invention, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A clamping force adjustable headset comprises an arc-shaped headset band and two sound generating units respectively arranged at the inner sides of two ends of the headset band, and is characterized in that an adjusting structure is respectively arranged between each sound generating unit and the end part of the corresponding side of the headset band; the head band comprises an inner support and an outer support arranged on the outer peripheral side of the inner support, long grooves arranged along the extending direction of the outer support are respectively arranged at two end parts of the outer peripheral side surface of the outer support, racks are arranged on one side wall of each long groove, and long through holes of the outer support arranged along the extending direction of the outer support are arranged on the bottom surface of each long groove; the adjusting structure comprises a gear which is arranged in the elongated groove and meshed with the rack, and a rotating shaft which is coaxially arranged with the gear and fixedly connected together, wherein the rotating shaft penetrates through the elongated through hole of the outer support, and the inner support is inserted into the sound generating unit and is in threaded transmission connection with the sound generating unit; a connecting structure is arranged between the rotating shaft and the inner support, the connecting structure comprises a retainer fixedly connected with the inner support and a sliding block slidably mounted on the retainer, a long inner support through hole arranged along the extension direction of the inner support is arranged on the inner support corresponding to the retainer, and the rotating shaft penetrates through the sliding block and the long inner support through hole; a clamping groove is formed in the side face, far away from the outer support, of the inner support, the retainer is fixedly installed in the clamping groove, and the long through hole of the inner support is formed in the bottom face of the clamping groove; the retainer is provided with a sliding groove arranged along the extension direction of the inner support, and the sliding block is arranged on the sliding groove in a sliding manner; the sliding block comprises an outer cover arranged on one side of the sliding groove close to the sound generating unit and an inner cover arranged on one side of the sliding groove close to the inner support, and the outer cover is fixedly connected with the inner cover; and a limiting structure is arranged between the sliding block and the retainer and comprises a limiting bulge arranged on the inner cover and a plurality of limiting grooves which are correspondingly arranged on the retainer part at the side edge of the sliding groove and are arranged at intervals along the extending direction of the sliding groove.
2. The clamping force adjustable headset according to claim 1, wherein the sound generating unit is provided with a receiving hole, and the rotating shaft is inserted into the receiving hole and is in threaded transmission connection with the receiving hole.
3. The clamping force adjustable headset according to claim 2, wherein a threaded transmission portion is disposed at an end of the rotation shaft close to the sound generating unit, and at least two rotation shaft protrusions inserted into a threaded groove of the threaded transmission portion are disposed at circumferential intervals on an inner side wall of the accommodating hole.
4. The clamping force adjustable headset according to claim 3, wherein the outer diameter of the threaded transmission part is larger than the outer diameter of the rotating shaft, the accommodating hole is formed in the sound generating unit, a housing through hole coaxial with the accommodating hole is correspondingly formed in a housing of the sound generating unit, and the aperture of the housing through hole is smaller than that of the accommodating hole.
5. The clamping force adjustable headset according to claim 1, wherein a locking structure is provided between a bottom surface of the elongated groove and a side surface of the gear, and the locking structure comprises a locking protrusion provided on the bottom surface of the elongated groove and a plurality of locking holes provided at circumferential intervals on the side surface of the gear.
6. The clamping force adjustable headphone as claimed in claim 1, wherein the headband further comprises a housing disposed at the outer circumference of the outer frame and fixedly connected to the outer frame, a cavity is formed between the housing and the elongated grooves at the two ends of the outer circumference of the outer frame, and the gear is defined in the cavity.
7. The clamping force adjustable headphone according to claim 1, wherein an elastic arm is provided between the limit protrusion and the inner cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911017401.7A CN110881151B (en) | 2019-10-24 | 2019-10-24 | Clamping force adjustable headset |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911017401.7A CN110881151B (en) | 2019-10-24 | 2019-10-24 | Clamping force adjustable headset |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110881151A CN110881151A (en) | 2020-03-13 |
| CN110881151B true CN110881151B (en) | 2022-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911017401.7A Active CN110881151B (en) | 2019-10-24 | 2019-10-24 | Clamping force adjustable headset |
Country Status (1)
| Country | Link |
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| CN (1) | CN110881151B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114245263B (en) * | 2022-02-26 | 2022-05-03 | 深圳市乔威电源有限公司 | Laminating formula bluetooth headset device |
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| CN203691606U (en) * | 2014-02-11 | 2014-07-02 | 青岛歌尔声学科技有限公司 | Multi-angle adjustable headphone |
| CN105704590A (en) * | 2014-11-26 | 2016-06-22 | 王小平 | Adjustable headphone housing structure |
| CN107872743A (en) * | 2017-12-19 | 2018-04-03 | 歌尔科技有限公司 | Headphone |
| CN207573590U (en) * | 2017-12-18 | 2018-07-03 | 深圳市颂尼电子科技有限公司 | A kind of headphone of adjustable clamp clamp force |
| CN208462004U (en) * | 2018-05-24 | 2019-02-01 | 歌尔智能科技有限公司 | A kind of headphone of adjustable chucking power |
| CN209882044U (en) * | 2019-07-31 | 2019-12-31 | 潍坊歌尔电子有限公司 | Headset capable of adjusting clamping force |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105812977B (en) * | 2016-04-06 | 2019-03-15 | 贵州翔通科技实业有限公司 | Telescopic rotary type earphone |
| CN207135252U (en) * | 2017-08-29 | 2018-03-23 | 歌尔科技有限公司 | A kind of headphone |
| CN209184759U (en) * | 2018-12-10 | 2019-07-30 | 东莞市声强电子有限公司 | A kind of on-vehicle Bluetooth earphone |
| CN109361986A (en) * | 2018-12-12 | 2019-02-19 | 歌尔科技有限公司 | Headphone slidable adjustment structure and headphone |
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2019
- 2019-10-24 CN CN201911017401.7A patent/CN110881151B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103297890A (en) * | 2013-06-09 | 2013-09-11 | 青岛歌尔声学科技有限公司 | Earphone capable of adjusting and displaying hand band clamping force |
| CN203691606U (en) * | 2014-02-11 | 2014-07-02 | 青岛歌尔声学科技有限公司 | Multi-angle adjustable headphone |
| CN105704590A (en) * | 2014-11-26 | 2016-06-22 | 王小平 | Adjustable headphone housing structure |
| CN207573590U (en) * | 2017-12-18 | 2018-07-03 | 深圳市颂尼电子科技有限公司 | A kind of headphone of adjustable clamp clamp force |
| CN107872743A (en) * | 2017-12-19 | 2018-04-03 | 歌尔科技有限公司 | Headphone |
| CN208462004U (en) * | 2018-05-24 | 2019-02-01 | 歌尔智能科技有限公司 | A kind of headphone of adjustable chucking power |
| CN209882044U (en) * | 2019-07-31 | 2019-12-31 | 潍坊歌尔电子有限公司 | Headset capable of adjusting clamping force |
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| CN110881151A (en) | 2020-03-13 |
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