CN209103117U - A kind of domestic gas is from cutting control device - Google Patents
A kind of domestic gas is from cutting control device Download PDFInfo
- Publication number
- CN209103117U CN209103117U CN201821475759.5U CN201821475759U CN209103117U CN 209103117 U CN209103117 U CN 209103117U CN 201821475759 U CN201821475759 U CN 201821475759U CN 209103117 U CN209103117 U CN 209103117U
- Authority
- CN
- China
- Prior art keywords
- gas
- circuit
- cutting
- intermediate relay
- direct current
- 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
Landscapes
- Feeding And Controlling Fuel (AREA)
Abstract
The utility model discloses a kind of domestic gas from cutting control device, including gas flow switch KLL, restores gas source intermediate relay KA2 normally-closed contact, power circuit, the first delay circuit, cutting circuit, cutting gas source intermediate relay KA1 normally opened contact, the second delay circuit and reset circuit.The beneficial effects of the utility model are: utility model device can automatically cut off combustion gas source when combustion gas user forgets to turn off gas combustion range ignition switch, guarantee combustion gas using safe, be particularly suitable for the poor group of memory, be especially suitable for old solitary people.Utility model device can cut off gas source when detecting indoor fuel gas concentration over-standard immediately, to guarantee the generation that not will cause combustion gas poisoning and fire incident.Utility model device is adjustable using the time of natural gas, and wider range is arranged in the time, and after this is acted from cutting control device, under natural gas motorcar security situation, can light a fire use again, and easy for installation.
Description
Technical field
The utility model relates to a kind of cutting control device, specially a kind of domestic gas belongs to from cutting control device
Fuel gas uses security technology area.
Background technique
Currently, combustion gas has been obtained very universal in household, the either pipeline that generally uses of town dweller is natural
The bottled gas that gas or cottar use, combustion gas are still a very serious problems, especially present people using safe
Mouthful aging increasingly severe today, old solitary people will be more and more, and, with the increase at age, memory moves back year by year for they
Change, forgets to turn off gas-cooker ignitor switch (especially firepower is adjusted to minimum state), adult when cooking or heating up water often
Have and forget to close fiery phenomenon often, this easily leads to the generation of combustion gas poisoning or explosion accident, cause unnecessary loss of property and
Casualties.More existing market is gas alarm device, and rare combustion gas is from disconnecting device.
Utility model content
The purpose of this utility model is that will be more and more in order to solve current old solitary people, they with the age increasing
Add, memory is degenerated year by year, forgets to turn off gas-cooker ignitor switch that (especially firepower is adjusted to minimum when cooking or heating up water often
State), adult also has forgets to close fiery phenomenon often, easily leads to the generation of combustion gas poisoning or explosion accident, it is unnecessary to cause
Property loss and casualties, the problem of and it is gas alarm device that existing market is more, and rare combustion gas is from disconnecting device, and
It is proposed a kind of domestic gas from cutting control device.
The purpose of this utility model can be achieved through the following technical solutions: a kind of domestic gas from cutting control device,
Including gas flow switch KLL, recovery gas source intermediate relay KA2 normally-closed contact, power circuit, the first delay circuit, cut
Deenergizing, cutting gas source intermediate relay KA1 normally opened contact, the second delay circuit and reset circuit；
Described one end gas flow switch KLL is connected with mains 220V power firestreak, and gas flow switch KLL is another
One end is connected with the recovery gas source in the reset circuit with intermediate relay KA2 normally-closed contact one end, the reset circuit
In recovery gas source be connected with the intermediate relay KA2 normally-closed contact other end with the power circuit input terminal, power circuit
Output end provides direct current 12V working power for the first delay circuit and cutting circuit；
The first delay circuit output end is connected with the cutting circuit, and the cutting gas source in the cutting circuit is used
Intermediate relay KA1 normally opened contact is connected on the direct current of the power circuit output end and the second delay circuit and reset circuit
Between 12V working power end, the second delay circuit output end is connected with reset circuit.
The further Technological improvement plan of the utility model is: the power circuit is the 12V pressure stabilizing of electronic circuit direct current
Power circuit, the power circuit includes step-down transformer 220V/15V (alternating current 220V power supply is reduced to 15V power supply), through bridge type
It is connected after rectification and capacitor filtering with voltage stabilizing chip LM7812, stable direct current 12V power supply is exported, for subsequent conditioning circuit and direct current
The elements such as intermediate relay use.
The further Technological improvement plan of the utility model is: the switch body of the gas flow switch KLL is connected on
On gas pipeline between the outlet of pipeline table or liquefied gas bottle outlet and gas-cooker, gas flow switch KLL has gas when detection
When body flows through, normally opened contact closure provides alternating current 220V power supply for power circuit.
The further Technological improvement plan of the utility model is: first delay circuit uses 555 chips and surrounding
Element is constituted, and the surrounding component includes adjustable resistance RP, first capacitor and the second capacitor, passes through adjustable resistance RP and capacitor C1
The delay of time, the knob cap subscript having time scale value of the adjustable resistance RP are realized in charging.
The further Technological improvement plan of the utility model is: the cutting circuit includes first resistor, first crystal
Triode, cutting gas source direct current intermediate relay KA1 coil, the first freewheeling diode and smog switch KYW, when the first delay
When the third pin of circuit exports low level, cutting gas source is obtained electric with direct current intermediate relay KA1 coil.
The further Technological improvement plan of the utility model is: the cutting gas source direct current intermediate relay includes cutting
Die source direct current intermediate relay KA1 coil and two groups of normally opened contacts, wherein one group of normally opened contact and the first delay circuit and
Reset circuit series connection, normally opened contact closure provide direct current 12V working power for the second delay circuit and reset circuit, and another group normal
Contact series are opened between electromagnetic valve coil and direct current 12V power supply, electromagnetic valve body is connected on gas flow switch body and combustion gas
On pipeline between stove.
The further Technological improvement plan of the utility model is: the smog switch KYW is connected in parallel on three pole of first crystal
Between the collector and emitter of pipe, when detecting indoor smog denseer (more than the setting value of the switch), normally opened contact
Closure so that cutting gas source obtained with direct current intermediate relay KA1 coil it is electric.
The further Technological improvement plan of the utility model is: second delay circuit using the 2nd 555 chip and
Surrounding component is constituted, and the surrounding component includes second resistance, third capacitor and the 4th capacitor, passes through second resistance and third electricity
The delay of time is realized in capacity charge, so that reset circuit is devoted oneself to work, the second capacitor and the 4th capacitor are anti-tampering capacitor, described
Second resistance is fixed value resistance.
The further Technological improvement plan of the utility model is: the reset circuit includes 3rd resistor, the second crystal
Triode restores gas source direct current intermediate relay KA2 coil and its normally opened contact and the second freewheeling diode, when the second delay
When the third pin of circuit exports low level, recovery gas source is obtained electric with direct current intermediate relay KA2 coil.
Compared with prior art, the utility model has the beneficial effects that
1, utility model device can automatically cut off combustion gas when combustion gas user forgets to turn off gas combustion range ignition switch
Source, guarantee combustion gas using safe, be particularly suitable for the poor group of memory, be especially suitable for old solitary people.
2, utility model device can cut off gas source when detecting indoor fuel gas concentration over-standard immediately, thus
Guarantee the generation that not will cause combustion gas poisoning and fire incident.
3, utility model device is adjustable using the time of natural gas, and wider range is arranged in the time, in the cutting certainly
After control device movement, under natural gas motorcar security situation, it is not necessarily to any operation, can light a fire use again, and it is easy to operate,
And it is easy for installation.
Detailed description of the invention
In order to facilitate the understanding of those skilled in the art, the utility model will be further described below with reference to the accompanying drawings.
Fig. 1 is the composition block diagram of the utility model.
Fig. 2 is the circuit diagram of the utility model.
In figure: 1, gas flow switch KLL；2, restore gas source intermediate relay KA2 normally-closed contact；3, power circuit；
4, the first delay circuit；5, circuit is cut off；6, gas source intermediate relay KA1 normally opened contact is cut off；7, the second delay circuit；8,
Reset circuit；100, adjustable resistance RP；101, first capacitor；102, the second capacitor；103, the one 555 chip；104, the first electricity
Resistance；105, first crystal triode；106, the first freewheeling diode；107, gas source direct current intermediate relay KA1 coil is cut off；
108, smog switch KYW；109, normally opened contact；110, second resistance；111, third capacitor；112, the 4th capacitor；113, second
555 chips；114,3rd resistor；115, the second transistor；116, the second freewheeling diode；117, restore gas source direct current
Intermediate relay KA2 coil.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with embodiment, it is clear that described
Embodiment be only the utility model a part of the embodiment, instead of all the embodiments.Based on the reality in the utility model
Example is applied, all other embodiment obtained by those of ordinary skill in the art without making creative efforts all belongs to
In the range of the utility model protection.
It please refers to shown in Fig. 1-2, a kind of domestic gas is from cutting control device, including gas flow switch KLL1, restores
Gas source intermediate relay KA2 normally-closed contact 2, power circuit 3, the first delay circuit 4 and the second delay circuit 7, cutting circuit
5, gas source intermediate relay KA1 normally opened contact 6, reset circuit 8 are cut off；Described one end gas flow switch KLL1 and alternating current are handed over
Stream 220V power firestreak is connected, and restores gas source 2 one end of intermediate relay KA2 normally-closed contact in the other end and reset circuit 8
It is connected, restores gas source in reset circuit 8 and be connected with 2 other end of intermediate relay KA2 normally-closed contact with 3 input terminal of power circuit
It connects, 3 output end of power circuit is that the first delay circuit 4 and the second delay circuit 7 and cutting circuit 5 provide direct current 12V work electricity
Source, the first delay circuit 4 and 7 output end of the second delay circuit are connected with cutting circuit 5, cut off cutting gas source in circuit 5 and use
Intermediate relay KA1 normally opened contact 6 is connected on the direct current of 3 output end of power circuit and the second delay circuit 7 and reset circuit 8
Between 12V working power end, 7 output end of the second delay circuit is connected with reset circuit 8；The power circuit 3 is electric wire
The common direct current 12V voltage-stabilized power supply circuit in road, including step-down transformer 220V/15V (alternating current 220V power supply is reduced to 15V power supply),
It is connected after bridge rectifier and capacitor filtering with voltage stabilizing chip LM7812, stable direct current 12V power supply is exported, for subsequent electricity
The elements such as road and direct current intermediate relay use；The gas flow switch KLL1 is when detection has gas to flow through, normally opened touching
Point closure provides alternating current 220V power supply for power circuit, switch body be connected on the outlet of pipeline table or liquefied gas bottle outlet and
On gas pipeline between gas-cooker；First delay circuit 4 is constituted using the one 555 chip 103 and surrounding component, including
Adjustable resistance RP100, first capacitor 101 and the second capacitor 102 are realized by adjustable resistance RP100 and the charging of first capacitor 101
The delay of time, the knob cap subscript having time scale value of the adjustable resistance RP100, the one end adjustable resistance RP100 and direct current
12V power supply is connected, and the other end is connected with first capacitor 101, and 101 other end of first capacitor is connected with ground (0V), adjustable
That end that resistance RP100 is connected with first capacitor 101 is connected with the 2nd pin of the one 555 chip 103 and the 6th pin, prevents
Interference capacitors C2102 is connected between the 5th pin of the one 555 chip 103 and ground (0V), and the 4th of the one 555 chip 103 is drawn
Foot and the 8th pin are connected with direct current 12V power supply, and the 1st pin of the one 555 chip 103 is connected with ground (0V), and the one 555
3rd pin of chip 103 is connected with 104 one end of first resistor resistance in cutting circuit 5；The cutting circuit 5 mainly wraps
Include first resistor resistance 104, transistor VT1105, cutting gas source direct current intermediate relay KA1 coil 107, afterflow two
Pole pipe VD1106, smog switch KYW 108, the resistance R1104 other end are connected with the base stage of transistor VT1105, crystal
The collector of triode VT1105 is connected with ground (0V), the emitter and cutting gas source direct current of transistor VT1 105
107 negative polarity end of intermediate relay KA1 coil is connected, and cuts off gas source 107 positive ends of direct current intermediate relay KA1 coil
It is connected with direct current 12V power supply, freewheeling diode VD1106 and direct current intermediate relay KA1 coil 107 is in parallel, smog switch
KYW 108 and the emitter and collector of transistor VT1105 are in parallel；The cutting gas source direct current intermediate relay
Including coil 107 and two groups of contacts, wherein normally opened contact 109 is connected between direct current 12V power supply and resistance R2110, contact
Direct current 12V working power is provided for the second delay circuit 7 and reset circuit 8 when closure, another group of normally opened contact is connected on electromagnetism
Between valve coil and direct current 12V power supply；Second delay circuit 7 is constituted using 555 chips 113 and surrounding component, including fixed
It is worth resistance R2110, capacitor 111 and 112, the resistance R2110 other end is connected with capacitor C3111, the capacitor C3111 other end and ground
(0V) is connected, that end that resistance R2110 is connected with capacitor C3111 is connected with the 2nd pin of 555 chips 113 and the 6th pin
Connect, anti-tampering capacitor C4112 be connected on 555 chips 113 the 5th pin and ground (0V) between, the 4th pin of 555 chips 113 and
8th pin is connected with cutting gas source with that end that direct current intermediate relay normally opened contact 109 and resistance R2110 are connected, and 555
1st pin of chip 113 is connected with ground (0V), the 3rd pin and the resistance R3104 mono- in reset circuit 8 of 555 chips 113
End is connected；The reset circuit 8 mainly include resistance R3114, transistor VT2115, restore among gas source direct current after
Electric appliance KA2 coil 117, freewheeling diode VD1 116, the resistance R3114 other end are connected with the base stage of transistor VT2115
It connects, the collector of transistor VT2115 is connected with ground (0V), the emitter and recovery gas source of transistor VT2115
Be connected with 117 negative polarity end of direct current intermediate relay KA2 coil, restore gas source with direct current intermediate relay KA2 coil 117 just
Polar end and 555 chips 113 the 4th, 8 pins be connected, freewheeling diode VD2116 and direct current intermediate relay line KA2 coil
117 are in parallel；The electromagnetic valve body is connected on the pipeline between gas flow switch body and gas-cooker.
The beneficial effects of the utility model are:
1, utility model device can automatically cut off combustion gas when combustion gas user forgets to turn off gas combustion range ignition switch
Source, guarantee combustion gas using safe, be particularly suitable for the poor group of memory, be especially suitable for old solitary people.
2, utility model device can cut off gas source when detecting indoor fuel gas concentration over-standard immediately, thus
Guarantee the generation that not will cause combustion gas poisoning and fire incident.
3, utility model device is adjustable using the time of natural gas, and wider range is arranged in the time, in the cutting certainly
After control device movement, under natural gas motorcar security situation, it is not necessarily to any operation, can light a fire use again, and it is easy to operate,
And it is easy for installation.
In conjunction with Fig. 1 and Fig. 2 summary working principle of the utility model is:
Originally from cutting control device after being connected on domestic gas pipeline, if after user opens gas combustion range ignition switch,
1 normally opened contact of gas flow switch KLL closure, by alternating current 220V plant-grid connection to the control device, after power circuit 3
More stable direct current 12V power supply is exported, if user is more than system set-up time value using combustion gas, in the first delay circuit 4
3rd pin of 555 chips 103 exports low level, so that transistor VT1 104 is connected, so that cutting gas source is with directly
It flows intermediate relay KA1 coil 107 and obtains electric, the closure of normally opened contact 109, be that the second delay circuit 7 and reset circuit 8 provide directly
12V power supply is flowed, meanwhile, another group of normally opened contact closure being connected between electromagnetic valve coil and direct current 12V power supply, so that string
The coil for being associated in the solenoid valve between gas flow switch and gas-cooker obtains electric, to cut off the supply of combustion gas, gas-cooker is because of nothing
Gas source supplies and stops working；Second delay circuit 7 is devoted oneself to work because there is direct current 12V power supply, is delayed after 2s, and the of 555 chips 113
3 pins export low level, so that transistor VT2114 is connected, so that restoring gas source direct current intermediate relay KA2
Coil 117 obtains electric, to be connected between gas flow switch KLL 1 and power circuit 3 disconnection of normally-closed contact 2, the first delay
Circuit 4 loses direct current 12V working power, so that cutting gas source 107 power loss of direct current intermediate relay KA1 coil, string
That group normally opened contact being associated between electromagnetic valve coil and direct current 12V power supply, which resets, to be disconnected, and connect gas flow switch KLL 1
The coil losing electricity of solenoid valve between gas-cooker facilitates user to reuse to restore the supply of combustion gas；If indoor smog
When concentration, smog switch KYW normally opened contact 108 be closed so that cutting gas source with direct current intermediate relay KA1 coil 107 immediately
Must be electric, to cut off the supply of combustion gas；When cutting gas source 107 power loss of direct current intermediate relay KA1 coil or restore gas source use
When direct current intermediate relay KA2 117 power loss of coil, freewheeling diode VD1106 or VD2116 provides energy Releasing loop for it,
To extend cutting gas source direct current intermediate relay KA1 or restore the service life of gas source direct current intermediate relay KA2.
The protective device is also applicable in a variety of industrial application scenes, as (flow switch is used to vehicle gas cylinder hydraulic pressure detection system
Detect the presence or absence of detection water), when reservoir is anhydrous, for seasonable, gas-liquid booster pump is in dry running state, when flow switch is dynamic
After being closed, the power supply of control system is cut off by the device, to play the role of protecting detection device, when there is water supply
When, the detection device can be again started up.
The preferred embodiment in the utility model disclosed above is only intended to help to illustrate the utility model.Preferred embodiment is simultaneously
There is no the details that detailed descriptionthe is all, also not limiting the utility model is only the specific embodiment.Obviously, according to this theory
The content of bright book can be made many to repair this and variation.These embodiments are chosen and specifically described to this specification, is in order to preferably
The principles of the present invention and practical application are explained, so that skilled artisan be enable to better understand and utilize this
Utility model.The utility model is limited only by the claims and their full scope and equivalents.
Claims (9)
1. a kind of domestic gas is from cutting control device, it is characterised in that: including gas flow switch KLL (1), restore gas source and use
During intermediate relay KA2 normally-closed contact (2), power circuit (3), the first delay circuit (4), cutting circuit (5), cutting gas source are used
Between relay KA1 normally opened contact (6), the second delay circuit (7) and reset circuit (8)；
(1) one end the gas flow switch KLL is connected with mains 220V power firestreak, gas flow switch KLL (1)
The other end is connected with the recovery gas source in the reset circuit (8) with intermediate relay KA2 normally-closed contact (2) one end, described
Recovery gas source intermediate relay KA2 normally-closed contact (2) other end and the power circuit (3) in reset circuit (8) input
End is connected；
First delay circuit (4) output end is connected with the cutting circuit (5), the cutting in cutting circuit (5)
Gas source with intermediate relay KA1 normally opened contact (6) be connected on the power circuit (3) output end and the second delay circuit (7) and
Between the direct current 12V working power end of reset circuit (8), the second delay circuit (7) output end is connected with reset circuit (8)
It connects.
2. a kind of domestic gas according to claim 1 is from cutting control device, which is characterized in that the power circuit
It (3) is electronic circuit direct current 12V voltage-stabilized power supply circuit, the power circuit (3) includes step-down transformer 220V/15V, through passing a bridge
It is connected after formula rectification and capacitor filtering with voltage stabilizing chip LM7812.
3. a kind of domestic gas according to claim 1 is from cutting control device, which is characterized in that the gas flow is opened
The switch body for closing KLL (1) is connected on the gas pipeline between the outlet of pipeline table or liquefied gas bottle outlet and gas-cooker.
4. a kind of domestic gas according to claim 1 is from cutting control device, which is characterized in that the first delay electricity
Road (4) is constituted using 555 chips (103) and surrounding component, and the surrounding component includes adjustable resistance RP (100), first capacitor
(101) and the second capacitor (102), the knob cap subscript having time scale value of the adjustable resistance RP (100).
5. a kind of domestic gas according to claim 1 is from cutting control device, which is characterized in that the cutting circuit
It (5) include first resistor (104), first crystal triode (105), cutting gas source direct current intermediate relay KA1 coil
(107), the first freewheeling diode (106) and smog switch KYW (108).
6. a kind of domestic gas according to claim 1 is from cutting control device, which is characterized in that the cutting gas source is used
Direct current intermediate relay includes cutting gas source direct current intermediate relay KA1 coil (107) and two groups of normally opened contacts, wherein one group
Normally opened contact (109) is connected with the first delay circuit (4) and reset circuit (8), and another group of normally opened contact is connected on line solenoid valve
Between circle and direct current 12V power supply, electromagnetic valve body is connected on the pipeline between gas flow switch body and gas-cooker.
7. a kind of domestic gas according to claim 1 is from cutting control device, which is characterized in that smog switch KYW
(108) it is connected in parallel between the collector and emitter of first crystal triode (105).
8. a kind of domestic gas according to claim 1 is from cutting control device, which is characterized in that the second delay electricity
Road (7) is constituted using the 2nd 555 chip (113) and surrounding component, and the surrounding component includes second resistance (110), third electricity
Hold (111) and the 4th capacitor (112), the second capacitor (102) and the 4th capacitor (112) are anti-tampering capacitor, second electricity
Hindering (110) is fixed value resistance.
9. a kind of domestic gas according to claim 1 is from cutting control device, which is characterized in that the reset circuit
(8) include 3rd resistor (114), the second transistor (115), restore gas source direct current intermediate relay KA2 coil (117)
And its normally opened contact (2) and the second freewheeling diode (116).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821475759.5U CN209103117U (en) | 2018-09-10 | 2018-09-10 | A kind of domestic gas is from cutting control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821475759.5U CN209103117U (en) | 2018-09-10 | 2018-09-10 | A kind of domestic gas is from cutting control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209103117U true CN209103117U (en) | 2019-07-12 |
Family
ID=67152302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821475759.5U Expired - Fee Related CN209103117U (en) | 2018-09-10 | 2018-09-10 | A kind of domestic gas is from cutting control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209103117U (en) |
-
2018
- 2018-09-10 CN CN201821475759.5U patent/CN209103117U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103901868A (en) | Intelligent controller for gas leakage power supply | |
| CN209103117U (en) | A kind of domestic gas is from cutting control device | |
| CN109358528A (en) | A kind of domestic gas is from cutting control device | |
| CN107026578B (en) | Power supply device for widening input voltage range of low-power switch power supply | |
| CN106786355A (en) | A kind of intelligent grid protector based on OR gate | |
| CN208871119U (en) | A kind of electromagnetic valve energy-saving circuit | |
| CN201037608Y (en) | LED energy-saving lamp device | |
| CN207720488U (en) | Input detection protection circuit and HID lamp AC electronic ballast | |
| CN204388395U (en) | Water management circuit on a kind of solar water heater | |
| CN203968094U (en) | Energy-saving safe switch | |
| CN104279837B (en) | Electric refrigerator incoming call time delay contactless protector | |
| CN204349419U (en) | Power-off trip protection plug | |
| CN209459250U (en) | Full water self-closing device for solar water heater | |
| CN207638315U (en) | The electric pre-heating relay that high current is contactless | |
| CN206117117U (en) | Direct current heater undervoltage protection circuit | |
| CN201518410U (en) | Automatic electricity-limiting controller | |
| CN205610209U (en) | Mains power supply's surge protection circuit | |
| CN209375456U (en) | A kind of novel soft starting circuit | |
| CN205664416U (en) | Electronic ignition ware control circuit | |
| CN204202220U (en) | A kind of two retaining solar water heater intelligence control system | |
| CN204100703U (en) | Refrigerator incoming call time delay contactless protector | |
| CN203706366U (en) | Coal gas alarm with anion generator | |
| CN201575616U (en) | Automatic water-supply system of solar water heater | |
| CN208046982U (en) | A kind of signal lamp adaptive equalization power supply | |
| CN209977390U (en) | Electromagnetic valve driving circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190712 Termination date: 20200910 |