CN208001738U - A kind of energy-saving agricultural drip irrigation appliance - Google Patents
A kind of energy-saving agricultural drip irrigation appliance Download PDFInfo
- Publication number
- CN208001738U CN208001738U CN201820265505.4U CN201820265505U CN208001738U CN 208001738 U CN208001738 U CN 208001738U CN 201820265505 U CN201820265505 U CN 201820265505U CN 208001738 U CN208001738 U CN 208001738U
- Authority
- CN
- China
- Prior art keywords
- case
- energy
- drip irrigation
- water tank
- trickle irrigation
- 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
- 238000003973 irrigation Methods 0.000 title claims abstract description 56
- 230000002262 irrigation Effects 0.000 title claims abstract description 56
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000007921 spray Substances 0.000 claims abstract description 22
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000011084 recovery Methods 0.000 claims abstract description 13
- 230000005611 electricity Effects 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims description 21
- 238000013016 damping Methods 0.000 claims description 12
- 238000004064 recycling Methods 0.000 claims description 11
- 239000010865 sewage Substances 0.000 claims description 11
- 239000012530 fluid Substances 0.000 claims description 4
- 239000003814 drug Substances 0.000 claims 1
- 235000015097 nutrients Nutrition 0.000 abstract description 23
- 239000002699 waste material Substances 0.000 abstract description 6
- 239000003621 irrigation water Substances 0.000 abstract description 4
- 238000006386 neutralization reaction Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000012010 growth Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 235000016709 nutrition Nutrition 0.000 description 2
- 230000035764 nutrition Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000012271 agricultural production Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/22—Improving land use; Improving water use or availability; Controlling erosion
Landscapes
- Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)
- Hydroponics (AREA)
Abstract
The utility model provides a kind of energy-saving agricultural drip irrigation appliance, it is related to agricultural equipment field, including pedestal, trickle irrigation case is installed at the top of the pedestal, the top of the trickle irrigation case is installed with spray tank and water tank respectively, it is provided with the first hose on the right side of the spray tank, the second hose is provided on the left of the water tank, the trickle irrigation case is internally provided with lead screw.The energy-saving agricultural drip irrigation appliance, pass through recovery tube, excessive nutrient solution and the nutrient solution fallen down from nursery chamber can be enable to be recycled, prevent the wasting of resources, by being provided with first motor, babinet can be made to move linearly on lead screw, promote the abundant neutralization of nursery chamber and nutrient solution, by being provided with left box body and right case in babinet, think that dripping irrigation water can use water tank, think that drip irrigation nutrient solution can use spray tank, it can also use simultaneously, by being provided with solar panel, the dependence to electricity can be broken away from, save the waste of electric power resource.
Description
Technical field
The utility model is related to agricultural equipment technical field, specially a kind of energy-saving agricultural drip irrigation appliance.
Background technology
It is well known that drip irrigation appliance be it is a kind of for carried out in agricultural production and field of planting water or other liquid materials into
The equipment of row trickle irrigation, is widely used in the related art.Currently, gardens nursery mostly uses container nursery, container
Interior space is limited, and does not have the required nutrition of growth of seedling, and required moisture and nutrient all need the external world to carry
For in order to promote seedling normal growth, needing the various nutrients of supply quantitative in time, making plant growth rate and endotrophic
It keeps stablizing, during feed flow, excessive nutrient solution can be flowed out from utensil lower part to be caused to waste, existing drip irrigation appliance one
As structure it is more complicated, drip irrigation appliance is electrically connected with alternating current and is powered in use, needing to control pump, and use is very inconvenient,
And certain waste is caused to electric power resource.
Utility model content
(1) the technical issues of solving
In view of the deficiencies of the prior art, the utility model provides a kind of energy-saving agricultural drip irrigation appliance, solves
State the problem of background technology proposes.
(2) technical solution
In order to achieve the above object, the utility model is achieved by the following technical programs：A kind of energy-saving agricultural drop
Filling device, including pedestal are installed with trickle irrigation case at the top of the pedestal, and the top of the trickle irrigation case is installed with respectively
Spray tank and water tank are provided with the first hose on the right side of the spray tank, the second hose are provided on the left of the water tank, described
Trickle irrigation case is internally provided with lead screw, first motor is provided on the right side of the trickle irrigation case, the shaft of the first motor runs through
The right plate of trickle irrigation case is connect with screw rod transmission, and the surface of the lead screw is provided with babinet, and gear is provided on the downside of the lead screw
The inside of plate, the baffle offers several liquid outlets, and motor housing, the motor housing are installed at the top of the baffle
Inside be installed with the second motor, be provided with support plate on the upside of the baffle, the shaft of second motor is through electricity
The top of cabinet is sequentially connected with support plate, several nursery chambers, the nursery chamber are installed at the top of the support plate
Bottom offer several fluid holes, the first filter screen, the downside of first filter screen are provided on the downside of the baffle
It is provided with the second filter screen, the bottom on the right side of the trickle irrigation case is provided with sewage outlet pipe, and the sewage outlet pipe is internally provided with first
Valve is provided with recycling bins on the right side of the trickle irrigation case, and one end of the sewage outlet pipe extends in recycling bins.
Preferably, the bottom of the pedestal is installed with support column, and the quantity of support column is no less than four, the branch
Dagger is internally provided with damping device, and the bottom of the support column is installed with idler wheel, and the side of the idler wheel is provided with
Brake.
Preferably, upper spring seat is installed at the top of the damping device, peace is fixed in the bottom of the damping device
Equipped with lower spring cup, equally distributed spring is provided between the upper spring seat and lower spring cup.
Preferably, the bottom on the left of the trickle irrigation case is provided with the first outlet tube, one end setting of first outlet tube
There are recovery tube, the inside of the recovery tube to be respectively arranged with the first drawing liquid pump, the second drawing liquid pump and third drawing liquid pump.
Preferably, the bottom of the recovery tube is respectively arranged with the second outlet tube and third outlet tube, and described second goes out liquid
The inside of pipe and third outlet tube is both provided with the second valve, and one end of second outlet tube extends in spray tank, described
Spray tank is internally provided with third filter screen, and one end of the third outlet tube extends in water tank, the top of the water tank
It is installed with cover board, the water tank is internally provided with the 4th filter screen.
Preferably, pillar is installed at the top of the trickle irrigation case, one end of the pillar is provided with shaft, the branch
Solar panel is provided on the upside of column, the solar panel () is sequentially connected by shaft and pillar.
Preferably, the babinet includes left box body and right case, and first hose and the second hose all extend to case
In vivo, the bottom of the babinet is provided with communicating pipe, and the bottom of the communicating pipe is installed with nozzle.
(3) advantageous effect
The utility model provides a kind of energy-saving agricultural drip irrigation appliance.Has following advantageous effect：
1, the energy-saving agricultural drip irrigation appliance can be made excessive nutrient solution and be fallen from nursery chamber by recovery tube
The nutrient solution fallen can be recycled, and prevent the wasting of resources, by the way that first motor is arranged, babinet can be made in lead screw
Upper linear movement promotes the abundant neutralization of nursery chamber and nutrient solution, by the way that left box body and right case are arranged in babinet, thinks dripping irrigation water
Water tank can be used, thinks that drip irrigation nutrient solution can use spray tank, water tank and spray tank can also be used simultaneously, by being arranged too
Positive energy solar panel, can break away from the dependence to electricity, while saving the waste of electric power resource.
Description of the drawings
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the utility model structural damping schematic device；
Fig. 3 is the utility model structure babinet schematic diagram.
In figure：1 pedestal, 2 support columns, 3 damping devices, 301 lower spring cups, 302 springs, 303 upper spring seats, 4 brakes, 5
Idler wheel, 6 first drawing liquid pumps, 7 first outlet tubes, 8 first filter screens, 9 liquid outlets, 10 recovery tubes, 11 support plates, 12 trickle irrigation casees,
13 babinets, 131 left box bodies, 132 nozzles, 133 communicating pipes, 134 right cases, 14 third filter screens, 15 second drawing liquid pumps, 16 liquids
Case, 17 second outlet tubes, 18 second valves, 19 first hoses, 20 water tanks, 21 cover boards, 22 third outlet tubes, 23 third drawing liquids
Pump, 24 the 4th filter screens, 25 second hoses, 26 shafts, 27 solar panels, 28 pillars, 29 lead screws, 30 first motors, 31
Nursery chamber, 32 fluid holes, 33 second motors, 34 motor housings, 35 baffles, 36 second filter screens, 37 first valves, 38 sewage outlet pipes,
39 recycling bins.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
The utility model embodiment provides a kind of energy-saving agricultural drip irrigation appliance, as shown in Figs. 1-3, including pedestal 1, bottom
The bottom of seat 1 is installed with support column 2, and the quantity of support column 2 is no less than four, and support column 2 is internally provided with damping
Device 3, by being provided with damping device 3, it is possible to reduce shaken in use device, greatly protect device, damping device 3
Top be installed with upper spring seat 303, the bottom of damping device 3 is installed with lower spring cup 301, upper spring seat 303
Equally distributed spring 302 is provided between lower spring cup 301, by the way that upper spring seat 303 and lower spring cup 301 is arranged,
For support spring 302, the elastic reaction of spring 302 is played, improves the effect of damping, the bottom of support column 2 is installed with
Idler wheel 5 is convenient for the movement of device, work, the side of idler wheel 5 is convenient for be provided with brake 4, stopped by being arranged by the way that idler wheel 5 is arranged
Vehicle 4 makes when device is moved to destination, and idler wheel 5 can be made to stop movement, is also prevented from the disorderly movement of idler wheel 5, and the top of pedestal 1 is solid
Dingan County is equipped with trickle irrigation case 12, and the top of trickle irrigation case 12 is installed with pillar 28, and one end of pillar 28 is provided with shaft 26, passes through
Shaft 26 is set, solar panel 27 can be made to adjust direction, is conducive to solar power generation, reduces the wave to electric power resource
Take, the upside of pillar 28 is provided with solar panel 27, by be arranged solar panel 27, can break away to electricity according to
Rely, while saving the waste of electric power resource, solar panel 27) it is sequentially connected by shaft 26 and pillar 28, trickle irrigation case
The bottom in 12 left sides is provided with the first outlet tube 7, and one end of the first outlet tube 7 is provided with recovery tube 10, can by recovery tube 10
So that excessive nutrient solution and the nutrient solution fallen down from nursery chamber 31 can be recycled, the wasting of resources is prevented,
The bottom of recovery tube 10 is respectively arranged with the second outlet tube 17 and third outlet tube 22, the second outlet tube 17 and third outlet tube 22
Inside be both provided with the second valve 18, by be arranged the second valve 18 can close spray tank 16 when with water tank 20
Valve, otherwise when with spray tank 16, the valve on water tank 20 can be closed, one end of the second outlet tube 17 extends to spray tank
In 16, spray tank 16 is internally provided with third filter screen 14, and one end of third outlet tube 22 extends in water tank 20, water tank 20
Top be installed with cover board 21, water tank 20 is internally provided with the 4th filter screen 24, by be arranged the 4th filter screen 24, can
To cross the impurity in drainage, the inside of recovery tube 10 is respectively arranged with the first drawing liquid pump 6, the second drawing liquid pump 15 and third drawing liquid pump
23, by the way that three drawing liquid pumps are arranged, it can greatly increase the recycling speed to nutrient solution and moisture, the top of trickle irrigation case 12
It is installed with spray tank 16 and water tank 20 respectively, the right side of spray tank 16 is provided with the first hose 19, and the left side of water tank 20 is set
It is equipped with the second hose 25, by the way that the first hose 19 and the second hose 25, when hose can be moved with babinet 13, trickle irrigation case is arranged
12 are internally provided with lead screw 29, and the right side of trickle irrigation case 12 is provided with first motor 30, by the way that first motor 30 is arranged, can make
Babinet 13 moves linearly on lead screw 29, and the abundant neutralization of nursery chamber 31 and nutrient solution, the shaft of first motor 30 is promoted to run through
The right plate of trickle irrigation case 12 is sequentially connected with lead screw 29, and the surface of lead screw 29 is provided with babinet 13, and babinet 13 includes left box body
131 and right case 134, by setting left box body 131 and right case 134 in babinet 13, thinks that dripping irrigation water can use water tank 20, think
Drip irrigation nutrient solution can use spray tank 16, can also use water tank 20 and spray tank 16, the first hose 19 and second soft simultaneously
Pipe 25 all extends in babinet 13, and the bottom of babinet 13 is provided with communicating pipe 133, by the way that communicating pipe 133 is arranged, can make nutrition
Liquid and water give 31 trickle irrigation of nursery chamber, the bottom of communicating pipe 133 to be installed with nozzle 132 together, and the downside of lead screw 29 is provided with
The inside of baffle 35, baffle 35 offers several liquid outlets 9, by the way that baffle 35 is arranged, can slow down nutrient solution and be flowed into water
At first outlet tube 7, the top of baffle 35 is installed with motor housing 34, and the inside of motor housing 34 is installed with the second motor
33, by the way that the second motor 33 is arranged, nursery chamber 31 can be made to accelerate to neutralize with nutrient solution or water, the upside of baffle 35 is provided with branch
The shaft of fagging 11, the second motor 33 is sequentially connected through the top of motor housing 34 and support plate 11, and the top of support plate 11 is solid
Dingan County is equipped with several nursery chambers 31, and the bottom of nursery chamber 31 offers several fluid holes 32, and the downside of baffle 35 is provided with
The downside of first filter screen 8, the first filter screen 8 is provided with the second filter screen 36, is filtered by the way that the first filter screen 8 and second is arranged
Net 36 is recycling after being filtered the nutrient solution and water that nursery chamber 31 flows down, the bottom on 12 right side of trickle irrigation case
It is provided with sewage outlet pipe 38, sewage outlet pipe 38 is internally provided with the first valve 37, and the right side of trickle irrigation case 12 is provided with recycling bins 39, goes out
One end of dirty pipe 38 extends in recycling bins 39, can be by the impurity filtered down from sewage outlet pipe 38 by the way that sewage outlet pipe 38 is arranged
It out send to recycling bins 39.
In conclusion the energy-saving agricultural drip irrigation appliance, by recovery tube 10, can make excessive nutrient solution and from
The nutrient solution that nursery chamber 31 is fallen down can be recycled, and prevent the wasting of resources, can be with by the way that first motor 30 is arranged
So that babinet 13 is moved linearly on lead screw 29, promotes the abundant neutralization of nursery chamber 31 and nutrient solution, it is left by setting in babinet 13
Babinet 131 and right case 134 think that dripping irrigation water can use water tank 20, think that drip irrigation nutrient solution can use spray tank 16, can also
Water tank 20 and spray tank 16 are used simultaneously, also, by the way that solar panel 27 is arranged, can break away from the dependence to electricity, simultaneously
Save the waste of electric power resource.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also include other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (7)
1. a kind of energy-saving agricultural drip irrigation appliance, including pedestal (1), it is characterised in that：Peace is fixed at the top of the pedestal (1)
Equipped with trickle irrigation case (12), the top of the trickle irrigation case (12) is installed with spray tank (16) and water tank (20), the medicine respectively
It is provided with the first hose (19) on the right side of liquid case (16), the second hose (25), the drop are provided on the left of the water tank (20)
It fills case (12) and is internally provided with lead screw (29), be provided with first motor (30) on the right side of the trickle irrigation case (12), described first
The shaft of motor (30) is sequentially connected through the right plate of trickle irrigation case (12) with lead screw (29), the surface setting of the lead screw (29)
There is babinet (13), baffle (35) is provided on the downside of the lead screw (29), the inside of the baffle (35) offers several and goes out
Liquid mouth (9) is installed with motor housing (34) at the top of the baffle (35), and the inside of the motor housing (34) is installed with
Second motor (33) is provided with support plate (11) on the upside of the baffle (35), and the shaft of second motor (33) is through electricity
The top of cabinet (34) is sequentially connected with support plate (11), several nursery chambers are installed at the top of the support plate (11)
(31), the bottom of the nursery chamber (31) offers several fluid holes (32), and first is provided on the downside of the baffle (35)
Filter screen (8) is provided with the second filter screen (36), the bottom on the right side of the trickle irrigation case (12) on the downside of first filter screen (8)
Portion is provided with sewage outlet pipe (38), and the sewage outlet pipe (38) is internally provided with the first valve (37), the right side of the trickle irrigation case (12)
Side is provided with recycling bins (39), and one end of the sewage outlet pipe (38) extends in recycling bins (39).
2. the energy-saving agricultural drip irrigation appliance of one kind according to claim 1, it is characterised in that：The bottom of the pedestal (1)
Portion is installed with support column (2), and the quantity of support column (2) is no less than four, and being internally provided with for support column (2) subtracts
Device (3) is shaken, the bottom of the support column (2) is installed with idler wheel (5), and the side of the idler wheel (5) is provided with brake
(4)。
3. the energy-saving agricultural drip irrigation appliance of one kind according to claim 2, it is characterised in that：The damping device (3)
Top be installed with upper spring seat (303), the bottom of the damping device (3) is installed with lower spring cup (301), institute
It states and is provided with equally distributed spring (302) between upper spring seat (303) and lower spring cup (301).
4. the energy-saving agricultural drip irrigation appliance of one kind according to claim 1, it is characterised in that：The trickle irrigation case (12) is left
The bottom of side is provided with the first outlet tube (7), and one end of first outlet tube (7) is provided with recovery tube (10), the recycling
The inside of pipe (10) is respectively arranged with the first drawing liquid pump (6), the second drawing liquid pump (15) and third drawing liquid pump (23).
5. the energy-saving agricultural drip irrigation appliance of one kind according to claim 4, it is characterised in that：The recovery tube (10)
Bottom is respectively arranged with the second outlet tube (17) and third outlet tube (22), second outlet tube (17) and third outlet tube
(22) inside is both provided with the second valve (18), and one end of second outlet tube (17) extends in spray tank (16), institute
That states spray tank (16) is internally provided with third filter screen (14), and one end of the third outlet tube (22) extends to water tank (20)
It is interior, cover board (21) is installed at the top of the water tank (20), the water tank (20) is internally provided with the 4th filter screen
(24)。
6. the energy-saving agricultural drip irrigation appliance of one kind according to claim 1, it is characterised in that：The trickle irrigation case (12)
Top is installed with pillar (28), and one end of the pillar (28) is provided with shaft (26), is set on the upside of the pillar (28)
It is equipped with solar panel (27), the solar panel (27) is sequentially connected by shaft (26) and pillar (28).
7. the energy-saving agricultural drip irrigation appliance of one kind according to claim 1, it is characterised in that：The babinet (13) includes
There are left box body (131) and right case (134), first hose (19) and the second hose (25) to all extend in babinet (13),
The bottom of the babinet (13) is provided with communicating pipe (133), and the bottom of the communicating pipe (133) is installed with nozzle (132).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820265505.4U CN208001738U (en) | 2018-02-24 | 2018-02-24 | A kind of energy-saving agricultural drip irrigation appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820265505.4U CN208001738U (en) | 2018-02-24 | 2018-02-24 | A kind of energy-saving agricultural drip irrigation appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208001738U true CN208001738U (en) | 2018-10-26 |
Family
ID=63886740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820265505.4U Expired - Fee Related CN208001738U (en) | 2018-02-24 | 2018-02-24 | A kind of energy-saving agricultural drip irrigation appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208001738U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110800590A (en) * | 2019-10-21 | 2020-02-18 | 安徽嘉景农业综合开发有限公司 | Leaf surface water jet equipment is cultivated to sapling |
-
2018
- 2018-02-24 CN CN201820265505.4U patent/CN208001738U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110800590A (en) * | 2019-10-21 | 2020-02-18 | 安徽嘉景农业综合开发有限公司 | Leaf surface water jet equipment is cultivated to sapling |
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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: 20181026 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |