CN208764915U - A kind of efficient cooker burner and gas-cooker - Google Patents
A kind of efficient cooker burner and gas-cooker Download PDFInfo
- Publication number
- CN208764915U CN208764915U CN201821406587.6U CN201821406587U CN208764915U CN 208764915 U CN208764915 U CN 208764915U CN 201821406587 U CN201821406587 U CN 201821406587U CN 208764915 U CN208764915 U CN 208764915U
- Authority
- CN
- China
- Prior art keywords
- fire cover
- ring fire
- external ring
- cooker
- fiery
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model provides a kind of efficient cooker burner and gas-cooker, is related to gas-cooker field.The efficient cooker burner, including central flame cap and external ring fire cover, external ring fire cover is around the encirclement central flame cap.The efficient cooker burner and gas-cooker that the utility model is proposed, by using the setting of central flame cap and two layers of external ring fire cover, and the angled setting of fiery slot of two layers of outer ring fire, it can effectively increase the contact area in flame and the bottom of a pan, improve efficiency；Due to two layers of angled setting of fiery slot of outer ring, the flame height of vertical direction is effectively reduced, reduces smoke height, and solve the cross-cutting issue of generic central fire and outer ring fire；Since interior ring fire is arranged using direct-injection fire, and direct-injection central flame has the function of radix saposhnikoviae, therefore gas-cooker can be made to be not easy to be gone out by wind, effectively increases the capability of anti-wind of gas-cooker.
Description
Technical field
The utility model relates to gas-cooker fields, in particular to a kind of efficient cooker burner and gas-cooker.
Background technique
Currently, gas-cooker substantially uses double ring fire cover on the market, comprising: central flame cap, external ring fire cover, and central flame cap
It is basic to use straight fire；Outer ring fire is stamped in such a way that straight fire, swingfire or rotation are directly arranged in pairs or groups, to be heated to the bottom of a pan.But it is this
It is generally existing for fiery mode, there are larger gap between inside and outside fire, the problems such as the bottom of a pan uneven heating, low efficiency, waste of energy；Or
Some fire covers of person can increase by a ring fire in external ring fire cover inner ring to increase port coverage, but this structure is easy and central flame
Intersect, causes to burn insufficient, the high defect of flue gas, in addition, such structure is difficult that the support height of pot is made to match with flame,
Lead to pan bracket excessive height or too low, and flame height should not be adjusted, can not also improve energy utilization rate.
Utility model content
It is simple with structure the purpose of this utility model is to provide a kind of efficient cooker burner, flame coverage rate
Height is, it can be achieved that the characteristics of improving energy utilization rate.
The another object of the utility model is to provide a kind of gas-cooker, simple with structure, and flame coverage rate is high, can
Realize the characteristics of improving energy utilization rate.
The utility model provides a kind of technical solution:
A kind of efficient cooker burner, including central flame cap and external ring fire cover, the external ring fire cover, which is surround, to be surrounded in described
Internal heat lid；
Multiple injection fire holes are offered on the central flame cap, the multiple injection fire-hole circular is set to the central flame
It covers；
The external ring fire cover includes the first external ring fire cover and the second external ring fire cover, and second external ring fire cover is located at described the
One external ring fire cover periphery, first external ring fire cover and second external ring fire cover are in angle setting, the first external ring fire cover and the
Two external ring fire covers are wholely set, and the multiple first fiery slots, the multiple first fiery slot interval are offered on first external ring fire cover
It is arranged, the multiple second fiery slots, the multiple second fiery slot interval setting is offered on second external ring fire cover.
Further, in the utility model preferred embodiment, the efficient cooker burner further includes fire cover seat, institute
State fire cover seat and connect and formed a bleed chamber with second external ring fire cover, the described first fiery slot and the second fiery slot with it is described
The connection of bleed chamber, the described first fiery slot and the second fiery slot are used for the intracavitary combustion gas of bleed described in injection.
Further, in the utility model preferred embodiment, the efficient cooker burner further include fire cover seat and
Burner body, the fire cover seat are convexly equipped with interconnecting piece, and the interconnecting piece is connect with the burner body, the fire cover seat with
Air-inducing passage is formed between the burner body, the air-inducing passage is used for the central flame cap and first outer ring fire
Lid provides auxiliary air.
Further, it in the utility model preferred embodiment, is also provided on second external ring fire cover multiple steady
Fireworks slot, the steady fireworks slot are arranged in parallel in the side of the described second fiery slot, and the steady fireworks slot is used for second fire
The injection flame of slot carries out steady flame.
Further, in the utility model preferred embodiment, the described second fiery groove width is greater than the steady fireworks slot
Width.
Further, in the utility model preferred embodiment, the extended line and the central flame of the described first fiery slot
The center line of lid is non-intersecting.
Further, in the utility model preferred embodiment, the extended line and the central flame of the described second fiery slot
The center line of lid is non-intersecting.
Further, in the utility model preferred embodiment, the extended line of the described first fiery slot and second fire
The extended line of slot is arranged in angle.
Further, in the utility model preferred embodiment, the injection fire hole is distributed in the central flame cap
Upper surface is used for vertical direction injection flame.
A kind of gas-cooker, including a kind of above-mentioned efficient cooker burner, the efficient cooker burner includes central flame
Lid and external ring fire cover, the external ring fire cover is around the encirclement central flame cap；
Multiple injection fire holes are offered on the central flame cap, the multiple injection fire-hole circular is set to the central flame
It covers；
The external ring fire cover includes the first external ring fire cover and the second external ring fire cover, and second external ring fire cover is located at described the
One external ring fire cover periphery, first external ring fire cover and second external ring fire cover are arranged in angle, first external ring fire cover
On offer the multiple first fiery slots, the multiple first fiery slot interval setting offers multiple the on second external ring fire cover
Two fiery slots, the multiple second fiery slot interval setting.
Compared with prior art, the beneficial effect of a kind of efficient cooker burner and gas-cooker provided by the utility model is:
The efficient cooker burner and gas-cooker that the utility model is proposed, by using central flame cap and two layers of outer ring fire
The setting of lid, and the angled setting of fiery slot of two layers of outer ring fire, can effectively increase the contact area in flame and the bottom of a pan, improve
Efficiency；Due to two layers of angled setting of fiery slot of outer ring, the flame height of vertical direction is effectively reduced, it is high to reduce flue gas
Degree, and solve the cross-cutting issue of generic central fire and outer ring fire.
To enable the above objects, features, and advantages of the utility model to be clearer and more comprehensible, preferred embodiment is cited below particularly, and
Cooperate appended attached drawing, is described in detail below.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described.It should be appreciated that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as.For those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the structural schematic diagram of efficient cooker burner provided by the utility model；
Fig. 2 is the first schematic diagram of central flame cap structure of efficient cooker burner provided by the utility model；
Fig. 3 is the second schematic diagram of central flame cap structure of efficient cooker burner provided by the utility model；
Fig. 4 is the external ring fire cover structural schematic diagram of efficient cooker burner provided by the utility model；
Fig. 5 is the fire cover holder structure schematic diagram of efficient cooker burner provided by the utility model.
Icon: 10- central flame cap；101- injection fire hole；102- first through hole；The second through-hole of 103-；20- external ring fire cover；
The first external ring fire cover of 201-；The second external ring fire cover of 202-；The fiery slot of 2011- first；The fiery slot of 2021- second；The steady fireworks slot of 2022-；
30- fire cover seat；301- interconnecting piece；40- burner body；34- air-inducing passage；50- ignition electrode；51- ignition needle sheath；60- heat
Galvanic couple；70- bleed chamber.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described.Obviously, it is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here in attached drawing description and
The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.Term " on ", "lower",
The orientation or positional relationship of the instructions such as "inner", "outside", "left", "right" be based on the orientation or positional relationship shown in the drawings, or
The utility model product using when the orientation or positional relationship usually put or those skilled in the art usually understand
Orientation or positional relationship is merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion is signified sets
Standby or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to the utility model
Limitation.Term " first ", " second " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.Art
A series of language "include", "comprise" or any other variant thereof is intended to cover non-exclusive inclusion, so that including want
The process, method, article or equipment of element not only includes those elements, but also including other elements that are not explicitly listed,
It further include either for elements inherent to such a process, method, article, or device.In the absence of more restrictions,
The element limited by sentence "including a ...", it is not excluded that in the process, method, article or equipment including the element
In there is also other identical elements.
It should also be noted that, unless otherwise clearly defined and limited, the terms such as " setting ", " connection " should do broad sense reason
Solution, for example, " connection " may be fixed connection or may be dismantle connection, or integral connection；It can be mechanical connection,
It is also possible to be electrically connected；It can be and be directly connected to, can also be indirectly connected with by intermediary, be can be inside two elements
Connection.For the ordinary skill in the art, it can understand as the case may be above-mentioned term in the present invention
Concrete meaning.
With reference to the accompanying drawing, specific embodiment of the present utility model is described in detail.
Specific embodiment:
A kind of efficient cooker burner is present embodiments provided, gas-cooker is applied to, as shown in Figure 1, efficiently kitchen range burning
Device includes central flame cap 10, external ring fire cover 20, fire cover seat 30 and burner body 40, and external ring fire cover 20 is around encirclement central flame cap
10, and central flame cap 10, external ring fire cover 20 and fire cover seat 30 are all set on burner body 40, central flame cap 10 is for providing
Interior ring flame, external ring fire cover 20 is for providing outer ring flame.
Multiple injection fire holes 101, first through hole 102 and the second through-hole 103 are offered on central flame cap 10, such as Fig. 2, Fig. 3
Shown, multiple 101 annulars of injection fire hole are set on central flame cap 10, and in the present embodiment, multiple injection fire holes 101 are arranged in
10 upper surface of internal heat lid, and be arranged in multi-layer annular, for vertical direction injection flame since central flame cap 10 uses more fire holes
Direct-injection, flare spray vertically upward, form direct-injection flare, make wind be difficult to put out, play anti-wind action.It should be noted that
Arrangement mode, size and the shape of multiple injection fire holes 101 are not limited to arrangement mode, size described in attached drawing and shape
Shape.
First through hole 102 and the second through-hole 103 are relatively arranged on the periphery wall of central flame cap 10,102 side of first through hole
It is provided with thermocouple 60, thermocouple 60 is used to detect the temperature of 102 injection flame of first through hole, it is intended that working as gas-cooker
When ventilation, if thermocouple 60 detects the temperature of 102 injection flame of first through hole lower than a certain threshold value, that is, gas-cooker can determine that
It is now in flameout state, main controller controls solenoid valve is closed, and is cut off air supply channel, is prevented gas leakage from bringing security risk.
Second through-hole, 103 side is provided with ignition electrode 50, and ignition electrode 50 is used to burn for gas ignition, 50 periphery set of ignition electrode
Equipped with ignition needle sheath 51, ignition needle sheath 51 is for protecting ignition electrode 50, also, ignition needle sheath 51 is isolation material, is prevented
Only electric arc dissipates.
External ring fire cover 20 includes the first external ring fire cover 201, the second fiery slot of the 202, first fiery slot 2011, second of external ring fire cover
2021 and steady fireworks slot 2022, as shown in Figure 4.
Second external ring fire cover 202 is located at 201 periphery of the first external ring fire cover, the first external ring fire cover 201 and the second external ring fire cover
202 are arranged in angle, i.e., form ridge protrusion, room in the intersection of the first external ring fire cover 201 and the second external ring fire cover 202
Ridge can effectively be such that the normal of the first external ring fire cover 201 and the second external ring fire cover 202 is arranged in angle, be conducive to the
The injection flame of one external ring fire cover 201 and the injection flame of the second external ring fire cover 202 are non-intersecting, and the first outer ring can be improved
The injection flame of the injection flame of fire cover 201 and the second external ring fire cover 202 keeps the bottom of a pan heating more equal the area coverage in the bottom of a pan
It is even, the thermal conversion efficiency of combustion gas is improved, and the first external ring fire cover 201 and the second external ring fire cover 202 are wholely set.
The multiple first fiery slots 2011 are offered on first external ring fire cover 201, the multiple first fiery intervals of slot 2011 are arranged, and first
The center line of the extended line and central flame cap 10 of fiery slot 2011 is non-intersecting, and its object is to make to go out from first fiery 2011 injections of slot
The flame come forms swingfire, is conducive to the stabilization of flame.
The multiple second fiery slots 2021 are offered on second external ring fire cover 202, the multiple second fiery intervals of slot 2021 are arranged, and second
The center line of the extended line and central flame cap 10 of fiery slot 2021 is non-intersecting, and its object is to make to go out from second fiery 2021 injections of slot
The flame come forms swingfire, is conducive to the stabilization of flame.
It should be noted that the first fiery slot 2011 and the second fire slot 2021 can be set in can also be spaced on same plane
Setting, and the first fiery slot 2011 can be identical relative to the direction of rotation of the center line of central flame cap 10 with the second fiery slot 2021
It is also possible to be in be reversed.Due to the first fire cover and the angled setting of the second fire cover, the extended line of the first fiery slot 2011
It is arranged with the extended line of the second fiery slot 2021 in angle.
Multiple steady fireworks slots 2022 are also provided on second external ring fire cover 202, steady fireworks slot 2022 is arranged in parallel in second
The side of fiery slot 2021, and the second fiery 2021 width of slot is greater than steady 2022 width of fireworks slot, steady fireworks slot 2022 is used for second
The injection flame of fiery slot 2021 carries out steady flame.It should be noted that the purpose of steady fireworks slot 2022 is for the second fiery slot 2021
Injection flame root carry out mending fire, prevent injection flame caused by the second fiery slot 2021 from occurring from flame phenomenon.
It should be noted that the phenomenon that so-called refer to from flame phenomenon, and flame has locally just been detached from fire hole, if flame is whole
It is detached from fire hole, is just de- fire.Equally, it can all lead to fray-out of flame from flame and de- fire, cause the accident.The tempering phenomenon of gas cooker
I.e. flame retracts fire hole and makes a noise in the intracavitary burning of burner, and consequence is to burn out burner or other equipment, often leads to flame
Extinguish, with to cause be poisoned and explosion accident.The de- fiery phenomenon of gas cooker be when fire hole outlet air flow velocity increase to it is a certain
When value, just the air velocity component of flame face point normal direction is greater than burning velocity, at this point, flame significantly increases, root volume is inhaled
Enter excessive auxiliary air, be allowed to concentration and water down, temperature reduces, and occurs as exit flow continues to increase, then to occur from flame
De- fire.Be usually caused by intake is too big from flame, as long as adjust a lower wind door, then have be exactly combustion gas pressure mistake
Height may also be caused from flame.
As shown in figure 5, fire cover seat 30 connect with the second external ring fire cover 202 and is formed a bleed chamber 70, the first fiery slot 2011
It is connected to the second fiery slot 2021 with bleed chamber 70, the first fiery slot 2011 and the second fiery slot 2021 are for the combustion in injection bleed chamber 70
Gas.Fire cover seat 30 is convexly equipped with interconnecting piece 301, and interconnecting piece 301 is connect with burner body 40, fire cover seat 30 and burner body 40
Between form an air-inducing passage 34, air-inducing passage 34 is used to provide auxiliary air to central flame cap 10 and the first external ring fire cover 201,
Keep the flame combustion of 10 injections of the first external ring fire cover 201 and central flame cap more abundant, improves the efficiency of combustion of combustion gas.
The utility model embodiment additionally provides a kind of gas-cooker, and gas-cooker includes above-mentioned efficient cooker burner.
To sum up:
Efficient cooker burner provided by the embodiment of the utility model, including central flame cap 10 and external ring fire cover 20, outer ring
Fire cover 20 is around encirclement central flame cap 10；
Multiple injection fire holes 101 are offered on central flame cap 10, multiple 101 annulars of injection fire hole are set to central flame cap 10
On；External ring fire cover 20 includes the first external ring fire cover 201 and the second external ring fire cover 202, and the second external ring fire cover 202 is located at the first outer ring
201 periphery of fire cover, the first external ring fire cover 201 and the second external ring fire cover 202 are arranged in angle, open up on the first external ring fire cover 201
There are the multiple first fiery slots 2011, the multiple first fiery intervals of slot 2011 are arranged, and multiple second fire are offered on the second external ring fire cover 202
Slot 2021, the multiple second fiery interval of slot 2021 settings.The efficient cooker burner and gas-cooker that the utility model is proposed, pass through
Using the setting of central flame cap and two layers of external ring fire cover, and the angled setting of fiery slot of two layers of outer ring fire, can effectively it increase
The contact area of flame and the bottom of a pan improves efficiency；Due to two layers of angled setting of fiery slot of outer ring, Vertical Square is effectively reduced
To flame height, reduce smoke height, and solve the cross-cutting issue of generic central fire and outer ring fire；Since interior ring fire is adopted
It is arranged with direct-injection fire, and direct-injection central flame has the function of radix saposhnikoviae, therefore gas-cooker can be made to be not easy to be gone out by wind, effectively
Improve the capability of anti-wind of gas-cooker.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, in the absence of conflict, the feature in the above embodiments be can be combined with each other, this is practical new
Type can also have various modifications and variations.Within the spirit and principle of the utility model, it is made it is any modification, equally replace
It changes, improve, should be included within the scope of protection of this utility model.Also, it should regard embodiment as exemplary, and
And be non-limiting, scope of this utility model is limited by the appended claims rather than the above description, it is intended that will fall
All changes within the meaning and scope of the equivalents of the claims are embraced therein.It should not be by claim
In any appended drawing reference be construed as limiting the claims involved.
Claims (10)
1. a kind of efficient cooker burner, which is characterized in that including central flame cap and external ring fire cover, the external ring fire cover is around packet
Enclose the central flame cap；
Multiple injection fire holes are offered on the central flame cap, the multiple injection fire-hole circular is set to the central flame cap
On；
The external ring fire cover includes the first external ring fire cover and the second external ring fire cover, and second external ring fire cover is located at outside described first
Ring fire cover periphery, first external ring fire cover and second external ring fire cover are arranged in angle, first external ring fire cover and institute
It states the second external ring fire cover to be wholely set, the multiple first fiery slots, the multiple first fiery slot is offered on first external ring fire cover
Interval is arranged, and the multiple second fiery slots, the multiple second fiery slot interval setting are offered on second external ring fire cover.
2. efficient cooker burner according to claim 1, which is characterized in that the efficient cooker burner further includes fire
Cage, the fire cover seat connect with second external ring fire cover and are formed a bleed chamber, the described first fiery slot and second fire
Slot is connected to the bleed chamber, and the described first fiery slot and the second fiery slot are used for the intracavitary combustion gas of bleed described in injection.
3. efficient cooker burner according to claim 1, which is characterized in that the efficient cooker burner further includes fire
Cage and burner body, the fire cover seat are convexly equipped with interconnecting piece, and the interconnecting piece is connect with the burner body, the fire
Air-inducing passage is formed between cage and the burner body, the air-inducing passage is used for the central flame cap and described first
External ring fire cover provides auxiliary air.
4. efficient cooker burner according to claim 1, which is characterized in that be also provided on second external ring fire cover
Multiple steady fireworks slots, the steady fireworks slot are arranged in parallel in the side of the described second fiery slot.
5. efficient cooker burner according to claim 4, which is characterized in that the described second fiery groove width is greater than described steady
Fireworks groove width.
6. efficient cooker burner according to claim 1, which is characterized in that the extended line of the first fiery slot with it is described
The center line of central flame cap is non-intersecting.
7. efficient cooker burner according to claim 1, which is characterized in that the extended line of the second fiery slot with it is described
The center line of central flame cap is non-intersecting.
8. efficient cooker burner according to claim 1, which is characterized in that the extended line of the first fiery slot with it is described
The extended line of second fiery slot is arranged in angle.
9. efficient cooker burner according to claim 1, which is characterized in that the injection fire hole is distributed in the center
The upper surface of fire cover is used for vertical direction injection flame.
10. a kind of gas-cooker, it is characterised in that: the gas-cooker includes such as the described in any item efficient kitchen range of claim 1-9
Burner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821406587.6U CN208764915U (en) | 2018-08-28 | 2018-08-28 | A kind of efficient cooker burner and gas-cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821406587.6U CN208764915U (en) | 2018-08-28 | 2018-08-28 | A kind of efficient cooker burner and gas-cooker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208764915U true CN208764915U (en) | 2019-04-19 |
Family
ID=66133160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821406587.6U Expired - Fee Related CN208764915U (en) | 2018-08-28 | 2018-08-28 | A kind of efficient cooker burner and gas-cooker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208764915U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108916869A (en) * | 2018-08-28 | 2018-11-30 | 广东万家乐厨房科技有限公司 | A kind of efficient cooker burner and gas-cooker |
-
2018
- 2018-08-28 CN CN201821406587.6U patent/CN208764915U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108916869A (en) * | 2018-08-28 | 2018-11-30 | 广东万家乐厨房科技有限公司 | A kind of efficient cooker burner and gas-cooker |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208764915U (en) | A kind of efficient cooker burner and gas-cooker | |
| JP7281067B2 (en) | multi-hole burner | |
| CN103267288B (en) | Burner | |
| CN203364130U (en) | Combustor | |
| AU2018208140A1 (en) | Energy-saving gas burner head and gas furnace thereof | |
| CN208687794U (en) | A kind of burner for gas stove and its gas-cooker | |
| CN209458942U (en) | A kind of burner having the burner fire lid for the burner fire lid of gas cooker and application | |
| CN206890516U (en) | Burner and gas-cooker | |
| CN108916869A (en) | A kind of efficient cooker burner and gas-cooker | |
| CN203286609U (en) | Energy-saving wind-protection gas stove rack | |
| CN109959006B (en) | Burner for gas stove | |
| CN202757155U (en) | Energy-saving cooking range | |
| CN103776067A (en) | Infrared liquefied gas furnace and infrared gas furnace end | |
| CN203464276U (en) | Inner spray type combustor for gas cooker | |
| CN104279564A (en) | Energy-saving stove ejector | |
| CN213630420U (en) | Burner for gas stove | |
| CN205447742U (en) | Go up air inlet burner | |
| CN205316325U (en) | Go up air inlet combustor for gas -cooker totally | |
| CN204084479U (en) | A kind of novel combined burner of infrared and flame | |
| CN205026662U (en) | Combustor | |
| CN206191648U (en) | Energy -conserving safe gas stove | |
| CN204717762U (en) | A kind of four-head combustion gas is stewed young stove Lian electric heating stove | |
| WO2013152581A1 (en) | Infrared gas burner with windproof function | |
| WO2020237883A1 (en) | Gas mixing burner | |
| CN212777527U (en) | Heat-collecting energy-saving gas stove |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190419 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |