CN206640759U - A kind of neck hanging type bluetooth earphone built in earplug - Google Patents
A kind of neck hanging type bluetooth earphone built in earplug Download PDFInfo
- Publication number
- CN206640759U CN206640759U CN201720443292.5U CN201720443292U CN206640759U CN 206640759 U CN206640759 U CN 206640759U CN 201720443292 U CN201720443292 U CN 201720443292U CN 206640759 U CN206640759 U CN 206640759U
- Authority
- CN
- China
- Prior art keywords
- earplug
- cavity
- spring
- bluetooth earphone
- fixture
- 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.)
- Active
Links
Landscapes
- Headphones And Earphones (AREA)
Abstract
The utility model proposes the neck hanging type bluetooth earphone built in a kind of earplug, is related to the wireless technical field for answering equipment.The utility model includes headset main body and earplug, and headset main body includes pole and housing, and the end of housing is provided with the cavity that can be inserted into earplug, blocking mechanism is additionally provided with cavity, and earplug is provided with the retaining mechanism being adapted with blocking mechanism;Blocking mechanism includes the spring being arranged in cavity and the fixture being connected with spring end, and the end of fixture is provided with groove, and retaining mechanism is the projection being adapted with groove.The utility model sets the cavity that can be inserted into earplug in the inside of housing, and earplug is inserted after enclosure interior makes earplug be firmly installed in the inside of housing by the cooperation of blocking mechanism and retaining mechanism, and its outward appearance is more attractive in appearance, and fixed force is strong, difficult for drop-off;Built in earplug, can preferably protect earplug, avoid damage to it is dirty;Connection is simple, without using magnet, has evaded influence of the magnet to SPK acoustical behavior.
Description
Technical field
The wireless technical field for answering equipment is the utility model is related to, particularly relates to the neck hanging type bluetooth built in a kind of earplug
Earphone.
Background technology
Bluetooth earphone exactly applies Bluetooth technology in hands-free headsets, allows user to exempt leading for irritating electric wire
Stumble, the easily call in a variety of ways of comfortable ground.It has been always the good of Mobile Commerce race raising efficiency since bluetooth earphone comes out
Instrument.Bluetooth earphone is divided into single sound channel bluetooth headset and I tech clip S, I tech clip S possess neck extension, headset,
The patterns such as clip, glasses, and the wherein pattern such as neck extension and clip is wired bluetooth earphone, major function is hung up except answering
Outside call, music can be also directly appreciated, meanwhile, partial stereo bluetooth earphone is also equipped with LCDs, can not only facilitate
See caller ID, be also equipped with showing the function such as the title of the song lyrics.
At present, existing neckstrap formula bluetooth earphone is mostly that earplug component is external on the market, this earplug component external neck
The outside of earphone is exposed at because earplug is convex with bluetooth earphone, it is loftier in appearance, influences attractive in appearance, is easily damaged and does
It is dirty;Meanwhile it is in use, this external earplug component is easier to come off;Moreover, this external earplug passes through
Magnet is attached with headset main body, and the use of magnet also (Speaker abbreviation, can refer to that loudspeaker or pronunciation are single to SPK
Member) acoustical behavior have an impact.
Utility model content
The utility model proposes the neck hanging type bluetooth earphone built in a kind of earplug, it is external to solve earplug of the prior art
The easy damage of formula neckstrap bluetooth earphone, the problem of making dirty and coming off and influence acoustical behavior.
What the technical solution of the utility model was realized in:Including headset main body and pass through wire and the headset main body
The earplug being connected, the headset main body include meeting the pole of neck structure, and the both ends of the pole are respectively equipped with shell
Body, the end of the housing are provided with the cavity that can be inserted into the earplug, are additionally provided with blocking mechanism in the cavity, on the earplug
Provided with the retaining mechanism being adapted with the blocking mechanism;The blocking mechanism include being arranged on spring in the cavity and with
The fixture that the spring end is connected, the end of the fixture are provided with groove, and the retaining mechanism is and the groove
The projection being adapted.
As a kind of preferred embodiment, the cavity is provided with the first fixing groove and the second fixation communicated therewith
Groove, diametric(al) along the cavity of first fixing groove and second fixing groove are set, and the spring is positioned at described the
The inside of one fixing groove, the fixture can be in the diametric(al)s that the inside of second fixing groove realizes along the cavity
Move back and forth.
As a kind of preferred embodiment, the fixture includes being used to limit the spring into the described second fixation
The head of groove and be connected to the head bottom fixed column, the fixed column can second fixing groove inside realize
Move back and forth, the groove is located at the end of the fixed column.
As a kind of preferred embodiment, the top of first fixing groove is provided with mounting post, the head of the fixture
The top in portion is provided with connecting pole, and the upper end socket of the spring is connected to the outside of the mounting post, the lower end set of the spring
The outside of the connecting pole is connected in succession, and the middle part of the spring is hollow setting.
As a kind of preferred embodiment, the blocking mechanism is two and in the circumference of the cavity in symmetrical point
Cloth, the retaining mechanism are annular protrusion.
As a kind of preferred embodiment, the earplug includes earplug fore shell and connected earplug rear shell, described
Earplug fore shell is provided with earplug silica gel sheath, and the earplug rear shell is provided with the interface for being used for connecting the wire, the convex annular
Rise in the earplug rear shell.
As a kind of preferred embodiment, the earplug rear shell is set for cylindrical type, and the earplug rear shell is in the ring
The raised outside of shape is additionally provided with is affectedly bashful portion for pick and place the earplug.
As a kind of preferred embodiment, the end of the housing is provided with the internal diameter installation equal with the cavity inside diameter
Seat, the blocking mechanism are located at the inside of the mounting seat, and the outside of the mounting seat is connected by changeover portion with the housing.
As a kind of preferred embodiment, the both sides of the groove are convex tendon, and the both ends of the convex tendon are that fillet is set
Put.
Operation principle:When earplug without using when, one it is hand-held live earplug earplug rear shell, another it is hand-held live ear
The housing of owner's body upper rack posts connection, makes the earplug silica gel sheath, earplug fore shell and earplug rear shell of earplug be sequentially inserted into enclosure interior
Cavity in;Because the forward part of earplug silica gel sheath, earplug fore shell and earplug rear shell is apart from the end of the fixture of blocking mechanism
There is a segment distance, now, fixture ensures motionless;When the annular protrusion in earplug rear shell enters the cavity, annular protrusion squeezes
The convex tendon on rear side of the groove of fixture is pressed, spring is compressed, and earplug continues to be forwardly inserted, and annular protrusion sticks into fixture end
In groove, spring release partial pressure, under the pressure effect of two lateral springs, earplug is securely fixed in the inside of the cavity,
So as to complete the placement work of earplug.When earplug is needed to use, the earplug rear shell of a hand-held firmly earplug, another hand
The housing of headset main body upper rack posts connection is handled, pulls earplug rear shell and housing respectively along opposite direction, annular protrusion is again
Convex tendon on rear side of the groove of secondary extruding fixture, spring are compressed again, and earplug continues to pull back, the annular in earplug rear shell
Projection departs from out of fixture end groove, and annular protrusion separates with fixture, and spring recovers initial decrement, now,
Fixture its end under the restriction effect of the first fixing groove does not influence the earplug rear shell portion, earplug fore shell and earplug of earplug still
Silica gel sheath removes the cavity of enclosure interior, so as to complete the taking-up work of earplug.
Compared with prior art, the beneficial effects of the utility model are:The utility model sets in the inside of housing and can inserted
Enter the cavity of earplug, blocking mechanism is provided with the cavity, earplug is provided with the retaining mechanism being adapted with blocking mechanism, and earplug is inserted
Enter the inside for making earplug be firmly installed in housing by the cooperation of blocking mechanism and retaining mechanism after enclosure interior;In the earplug
Put formula neck hang bluetooth earphone outward appearance it is more attractive in appearance, fixed force is strong, difficult for drop-off;Due to built in earplug, can preferably protect
Earplug, avoid damage to it is dirty;This snapping connection by raised and groove adaptation of earplug and housing, make its connection letter
It is single, without using magnet, evade influence of the magnet to SPK acoustical behavior;Its is reasonable in design, blocking mechanism and locking machine
Structure adaptation is easy, the outward appearance of earplug will not be caused to wear, blocking mechanism sound construction, will not be slid from cavity inside, spring
Move along a straight line, resilience is not in the phenomenon of distortion, skew and damage freely.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the section view attachment structure schematic diagram of existing external neckstrap bluetooth earphone;
Fig. 2 is the plane attachment structure schematic diagram of the utility model one embodiment;
Fig. 3 is the planar structure schematic diagram of housing in Fig. 2;
Fig. 4 is the planar structure schematic diagram of earplug in Fig. 2;
Fig. 5 is Fig. 2 section view attachment structure schematic diagram;
Fig. 6 is the cross section structure diagram of housing in Fig. 5;
Fig. 7 is the mplifying structure schematic diagram at A in Fig. 6;
Fig. 8 is the cross section structure diagram of earplug in Fig. 5;
In figure:1- housings;2- earplugs;3- magnet;4-SPK;11- mounting seats;12- springs;13- fixtures;14- grooves;
The fixing grooves of 15- first;The fixing grooves of 16- second;17- changeover portions;18- convex tendons;21- earplug silica gel sheaths;22- earplug fore shells;23- ears
Fill in rear shell;24- is raised;131- connecting poles;132- heads;133- fixed columns;151- mounting posts.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Refering to accompanying drawing 2, accompanying drawing 3, accompanying drawing 4, accompanying drawing 5, accompanying drawing 6, accompanying drawing 7 and accompanying drawing 8, the utility model includes headset main body
With the earplug 2 being connected by wire with headset main body, by wire transmission sound, headset main body includes meeting human body earplug 2
The pole of neck structure, the typically curved setting of pole, for simplicity, pole and wire not shown in accompanying drawing 2, pole
Both ends are respectively equipped with housing 1, and the end of housing 1 is provided with the cavity that can be inserted into earplug 2, blocking mechanism, earplug 2 are additionally provided with cavity
It is provided with the retaining mechanism being adapted with blocking mechanism;Blocking mechanism include being arranged on spring 12 in cavity and with the end of spring 12
The fixture 13 being connected is held, the end of fixture 13 is provided with groove 14, and retaining mechanism is the projection 24 being adapted with groove 14;
In the presence of spring 12, fixture 13 move back and forth so as to complete its end groove 14 with projection 24 be adapted to and mistake
Open, to complete the fixation of earplug 2 and extraction.
Refering to accompanying drawing 5, accompanying drawing 6, accompanying drawing 7 and accompanying drawing 8, cavity is provided with the first fixing groove 15 and communicated therewith and be second solid
Determine groove 16, the diametric(al) of the first fixing groove 15 and the second fixing groove 16 along cavity is set, and spring 12 is located at the first fixing groove 15
Inside, fixture 13 can realize the reciprocating motion in diametric(al) along cavity in the inside of the second fixing groove 16.This implementation
In example, fixture 13 includes being used for limited spring 12 into the head 132 of the second fixing groove 16 and the bottom for being connected to head 132
Fixed column 133, fixed column 133 can realize the reciprocating motion in diametric(al) along cavity in the inside of the second fixing groove 16,
Groove 14 is located at the end of fixed column 133;The setting on the head 132 of fixture 13 makes spring 12 be squeezed in the first fixing groove 15
Inside, certain decrement is formed, to facilitate follow-up positioning work.In addition, in the present embodiment, the top of the first fixing groove 15
Mounting post 151 is additionally provided with, the top on the head 132 of fixture 13 is provided with connecting pole 131, and the upper end socket of spring 12 is connected to peace
The outside of post 151 is filled, the lower end socket of spring 12 is connected to the outside of connecting pole 131, and the middle part of spring 12 is hollow setting;This
The upper end of spring 12 that kind is set guides it to move back and forth lower end and guides its reciprocating motion by connecting pole 131 by mounting post 151, fully
Its linear motion is kept, resilience freely, avoids the phenomenon that distortion, skew and damage occurs in spring 12.In the present embodiment, close
Latch mechanism is two and is symmetric in the circumference of cavity that retaining mechanism is annular protrusion 24;I.e. in the circumference of cavity
It is symmetrically distributed with two the first fixing grooves 15 and two the second fixing grooves 16, two blocking mechanisms is vertical from relative both direction
Step up earplug 2, so that the fixation of earplug 2.In the present embodiment, the end of housing 1 is equal with the internal diameter of cavity provided with internal diameter
Mounting seat 11, blocking mechanism is located at the inside of mounting seat 11, and the outside of mounting seat 11 is connected by changeover portion 17 with housing 1;
The setting of mounting seat 11 makes the connection of earplug 2 and housing 1 simple, convenient operation.
Refering to accompanying drawing 5 and accompanying drawing 8, earplug 2 includes earplug fore shell 22 and connected earplug rear shell 23, earplug fore shell 22
Earplug silica gel sheath 21 is provided with, earplug rear shell 23 is provided with the interface for connecting wire, and annular protrusion 24 is located at earplug rear shell
On 23.In addition, earplug rear shell 23 is set for cylindrical type, the earplug rear shell 23 that this cylindrical type is set is more convenient the plug of earplug 2
With work of taking, earplug rear shell 23 is additionally provided with the outside of annular protrusion 24 is affectedly bashful portion for pick and place earplug 2, and the portion of being affectedly bashful can be with
It is the breach of depression or the projection of protrusion, being affectedly bashful the setting in portion makes earplug 2 be affectedly bashful firmly when plug, avoids
Skid, plug earplug 2 easy to operate.
In the present embodiment, spring 12 moves back and forth in the inside of the first fixing groove 15 along the diametric(al) of cavity,
Spring 12 drives the head 132 of fixture 13 back and forth to be transported in diametric(al) of the inside of the first fixing groove 15 along cavity
Dynamic, the size on the head 132 of fixture 13 is more than the size of the second fixing groove 16, so that the head 132 of fixture 13 is all the time
The inside of the first fixing groove 15 is maintained at, spring 12 is kept certain decrement, the second fixing groove 16 is only for accommodating fixture
13 fixed column 133, under the induced effect of spring 12, the fixed column 133 of fixture 13 can be in the second fixing groove 16
Portion moves back and forth, meanwhile, the upper end of the fixed column 133 of fixture 13 can also enter the first fixing groove 15.Fixture 13
End due to the setting of groove 14, the both sides of groove 14 is formed as convex tendon 18, the both ends of convex tendon 18 are that fillet is set, this
The convex tendon 18 that kind fillet is set is advantageous to the smooth sliding of projection 24, the plug process of earplug 2 is in progress smoothly.
The utility model pertains only to the improvement in terms of neckstrap bluetooth earphone mechanical structure, is not related to software and circuit side connector
The improvement in face, the control of all software aspects and circuit control use existing technology, of the present utility model to answer principle
As being with prior art.
Operation principle:When earplug 2 without using when, one it is hand-held live earplug 2 earplug rear shell 23, another is held
The firmly housing 1 of headset main body upper rack posts connection, makes the earplug silica gel sheath 21, earplug fore shell 22 and earplug rear shell 23 of earplug 2 successively
Insert in the cavity inside housing 1;Because the forward part of earplug silica gel sheath 21, earplug fore shell 22 and earplug rear shell 23 is apart from locking
There is a segment distance end of the fixture 13 of mechanism, and now, fixture 13 ensures motionless;Annular protrusion in earplug rear shell 23
During 24 entrance cavity, annular protrusion 24 extrudes the convex tendon 18 of the rear side of groove 14 of fixture 13, and spring 12 continues to compress, ear
Plug 2 continues to be forwardly inserted, and annular protrusion 24 is sticked into the groove 14 of the end of fixture 13, and spring 12 discharges partial pressure, two
Under the pressure effect of lateral spring 12, earplug 2 is securely fixed in the inside of the cavity, so as to complete the placement work of earplug 2.When
When needing to use earplug 2, the earplug rear shell 23 of a hand-held firmly earplug 2, the hand-held firmly headset main body upper rack posts of another connect
The housing 1 connect, earplug rear shell 23 and housing 1 is pulled respectively along opposite direction, annular protrusion 24 extrudes fixture 13 again
The rear side of groove 14 convex tendon 18, spring 12 continues to compress again, and earplug 2 continues to pull back, the ring in earplug rear shell 23
Shape projection 24 departs from out of the end of fixture 13 groove 14, and annular protrusion 24 separates with fixture 13, and spring 12 recovers initial
Decrement, now, its end under the restriction effect of the first fixing groove 15 of fixture 13 does not influence the earplug rear shell of earplug 2 still
23 parts, earplug fore shell 22 and earplug silica gel sheath 21 remove the cavity inside housing 1, so as to complete the taking-up work of earplug 2.
Compared with the prior art shown in accompanying drawing 1, the beneficial effects of the utility model are:The utility model is in housing 1
Inside sets the cavity that can be inserted into earplug 2, and blocking mechanism is provided with the cavity, and earplug 2 is provided with what is be adapted with blocking mechanism
Retaining mechanism, earplug 2 is inserted behind the inside of housing 1 is firmly installed in earplug 2 by the cooperation of blocking mechanism and retaining mechanism
The inside of housing 1;The outward appearance that the 2 built-in neck of earplug hangs bluetooth earphone is more attractive in appearance, and fixed force is strong, difficult for drop-off;Due to ear
Plug 2 built in, can preferably protect earplug 2, avoid damage to it is dirty;Earplug 2 and housing 1 it is suitable by projection 24 and groove 14
Match somebody with somebody it is this snap connection, make its connection simple, without using magnet 3, evaded influence of the magnet 3 to SPK 4 acoustical behavior;
Its is reasonable in design, and blocking mechanism is adapted to easily with retaining mechanism, the outward appearance of earplug 2 will not be caused to wear, blocking mechanism
Sound construction, it will not be slid from cavity inside, spring 12 moves along a straight line, and resilience is not in distortion, skew and damage freely
Phenomenon.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc., the utility model should be included in
Protection domain within.
Claims (9)
1. the neck hanging type bluetooth earphone built in a kind of earplug, including headset main body and it is connected by wire with the headset main body
Earplug, the headset main body includes meeting the pole of neck structure, and the both ends of the pole are respectively equipped with housing, and it is special
Sign is:
The end of the housing is provided with the cavity that can be inserted into the earplug, and blocking mechanism, the earplug are additionally provided with the cavity
It is provided with the retaining mechanism being adapted with the blocking mechanism;
The blocking mechanism includes the spring being arranged in the cavity and the fixture being connected with the spring end, described
The end of fixture is provided with groove, and the retaining mechanism is the projection being adapted with the groove.
2. the neck hanging type bluetooth earphone built in earplug according to claim 1, it is characterised in that:
The cavity is provided with the first fixing groove and the second fixing groove communicated therewith, and first fixing groove and described second are consolidated
Determine diametric(al) of the groove along the cavity to set, the spring is located at the inside of first fixing groove, and the fixture can be
Realize along the reciprocating motion in the diametric(al) of the cavity inside of second fixing groove.
3. the neck hanging type bluetooth earphone built in earplug according to claim 2, it is characterised in that:
The fixture includes being used to limit the spring into the head of second fixing groove and is connected to the head
The fixed column of bottom, the fixed column can realize and move back and forth that the groove is positioned at described in the inside of second fixing groove
The end of fixed column.
4. the neck hanging type bluetooth earphone built in earplug according to claim 3, it is characterised in that:
The top of first fixing groove is provided with mounting post, and the top on the head of the fixture is provided with connecting pole, the spring
Upper end socket be connected to the outside of the mounting post, the lower end socket of the spring is connected to the outside of the connecting pole, institute
The middle part for stating spring is hollow setting.
5. the neck hanging type bluetooth earphone built in the earplug according to any one in claim 1-4, it is characterised in that:
The blocking mechanism is two and is symmetric in the circumference of the cavity that the retaining mechanism is annular protrusion.
6. the neck hanging type bluetooth earphone built in earplug according to claim 5, it is characterised in that:
The earplug includes earplug fore shell and connected earplug rear shell, and the earplug fore shell is provided with earplug silica gel sheath, institute
State earplug rear shell and be provided with the interface for being used for connecting the wire, the annular protrusion is located in the earplug rear shell.
7. the neck hanging type bluetooth earphone built in earplug according to claim 6, it is characterised in that:
The earplug rear shell is set for cylindrical type, and the earplug rear shell is additionally provided with the outside of the annular protrusion for picking and placeing institute
That states earplug is affectedly bashful portion.
8. the neck hanging type bluetooth earphone built in earplug according to claim 1, it is characterised in that:
The end of the housing is provided with the internal diameter mounting seat equal with the cavity inside diameter, and the blocking mechanism is located at the installation
The inside of seat, the outside of the mounting seat is connected by changeover portion with the housing.
9. the neck hanging type bluetooth earphone built in earplug according to claim 8, it is characterised in that:
The both sides of the groove are convex tendon, and the both ends of the convex tendon are that fillet is set.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201720443292.5U CN206640759U (en) | 2017-04-25 | 2017-04-25 | A kind of neck hanging type bluetooth earphone built in earplug |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201720443292.5U CN206640759U (en) | 2017-04-25 | 2017-04-25 | A kind of neck hanging type bluetooth earphone built in earplug |
Publications (1)
Publication Number | Publication Date |
---|---|
CN206640759U true CN206640759U (en) | 2017-11-14 |
Family
ID=60246163
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201720443292.5U Active CN206640759U (en) | 2017-04-25 | 2017-04-25 | A kind of neck hanging type bluetooth earphone built in earplug |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN206640759U (en) |
-
2017
- 2017-04-25 CN CN201720443292.5U patent/CN206640759U/en active Active
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB2376868A (en) | A neck strap | |
TWI540907B (en) | Double headphone structure and electronic equipment | |
CN204908856U (en) | Bluetooth U type pillow | |
CN103792682B (en) | A kind of leg of spectacles osteoacusis Bluetooth spectacles | |
CN106028192B (en) | Bluetooth motion earphone | |
KR101142400B1 (en) | Earphone for preventing twisting of strings using permanent magnetic | |
CN206640759U (en) | A kind of neck hanging type bluetooth earphone built in earplug | |
KR101165181B1 (en) | Device for preventing a tangle of earphone cable | |
CN2884762Y (en) | Cap earphone | |
KR200415723Y1 (en) | Ear-hook hands free set | |
CN211378229U (en) | Bluetooth headset with dustproof construction | |
CN203720479U (en) | Glasses for realizing bone conduction of Bluetooth through glasses legs | |
CN208987138U (en) | A kind of earphone | |
CN208638546U (en) | A kind of general headset wire rod | |
CN202143193U (en) | Elastic noise-proof earplug earphones | |
CN205610886U (en) | Can accomodate extension formula earphone of line | |
CN205945834U (en) | Cell -phone dust plug with speaker | |
CN205450493U (en) | Lazy people's cell -phone glasses | |
CN211630366U (en) | Novel earphone convenient to accomodate | |
CN210958715U (en) | Portable bluetooth headset | |
JP2007143033A (en) | Earphone microphone | |
FI121908B (en) | Device for facilitating the use of a mobile phone for hearing impaired | |
CN221409092U (en) | Ear-clamping Bluetooth earphone | |
CN213028479U (en) | Anti-drop's motion bluetooth headset | |
CN212177474U (en) | Neck hanging fan capable of carrying out hands-free call |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant |