CN207505747U - Collecting dirt type aquatic animal flowing water cycle brings up pond - Google Patents
Collecting dirt type aquatic animal flowing water cycle brings up pond Download PDFInfo
- Publication number
- CN207505747U CN207505747U CN201721260656.2U CN201721260656U CN207505747U CN 207505747 U CN207505747 U CN 207505747U CN 201721260656 U CN201721260656 U CN 201721260656U CN 207505747 U CN207505747 U CN 207505747U
- Authority
- CN
- China
- Prior art keywords
- water
- pond body
- pond
- aquatic animal
- brings
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 148
- 241001465754 Metazoa Species 0.000 title claims abstract description 35
- 238000001914 filtration Methods 0.000 claims abstract description 51
- 239000003651 drinking water Substances 0.000 claims abstract description 11
- 235000020188 drinking water Nutrition 0.000 claims abstract description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 19
- 229910052760 oxygen Inorganic materials 0.000 claims description 19
- 239000001301 oxygen Substances 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 13
- 239000012209 synthetic fiber Substances 0.000 claims description 7
- 229920002994 synthetic fiber Polymers 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229920000742 Cotton Polymers 0.000 claims description 4
- 244000005700 microbiome Species 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims description 3
- 239000010453 quartz Substances 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims description 3
- 241000628997 Flos Species 0.000 claims 1
- 238000010926 purge Methods 0.000 abstract 1
- 238000004088 simulation Methods 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 230000002706 hydrostatic effect Effects 0.000 description 2
- 238000006213 oxygenation reaction Methods 0.000 description 2
- 239000008213 purified water Substances 0.000 description 2
- 241000193830 Bacillus <bacterium> Species 0.000 description 1
- 238000009360 aquaculture Methods 0.000 description 1
- 244000144974 aquaculture Species 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000012258 culturing Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Farming Of Fish And Shellfish (AREA)
Abstract
It is recycled the utility model discloses a kind of collecting dirt type aquatic animal flowing water and brings up pond, including：Pond body；Blowdown apparatus, including：Dirt collection mouth is set among the bottom wall of pond body；Blow-off pipe, one end are connect with dirt collection mouth；Fence is set on the bottom wall of pond body and is covered on dirt collection mouth；Water filtering tube, diameter is up big and down small, is set in pond body, and outside wall surface and internal face are in latticed, filled at least one layer of drainage layer between outside wall surface and internal face；Water circle device, including：Water pumper is set in the inner cavity of water filtering tube；Drinking-water pipe, lower end are connect with water pumper；Isocon is connect with the upper end of drinking-water pipe；And water inlet pipe, at least two water inlet pipes are set on the side wall of pond body and are connect with isocon.The utility model can trapped dirt, carrying out self-purging and water to the water in pond body can circulate, so as to provide the environment of good simulation field ecosystem circulating water, promotion aquatic animal healthy growth for aquatic animal.
Description
Technical field
The utility model is related to aquatic animals to cultivate field, and more particularly to a kind of collecting dirt type aquatic animal flowing water cycle is brought up
Pond.
Background technology
When propagating aquatic animal artificially, the devices such as box for breeding, culturing jar and aquaculture pond are often required to use, these devices
Memory is placed with water so that aquatic animal lives in hydrostatic.After the feeding that carries out feeding intake to aquatic animal, the water in device can be residual
Swill is stayed, and aquatic animal can also drain dirt in life process, be easily contaminated so as to cause the water in device.Mesh
Before, it needs in a relatively short period of time periodically to replace the water in cultivation apparatus, to keep aquatic animal that there is good life
Environment living, if directly excluded sewage after replacement, can cause to waste, and if repeating profit after handling sewage
With, and it is cumbersome, and processing cost is higher.And before being replaced to water, the living environment of cultivation apparatus can become to get over
It is poorer to come, and cannot provide the good living environment relatively stablized.
The information for being disclosed in the background technology part is merely intended to increase the understanding to the general background of the utility model, and
It is not construed as recognizing or implies that information composition has been existing well known to persons skilled in the art in any form
Technology.
Utility model content
It is recycled the purpose of this utility model is to provide a kind of collecting dirt type aquatic animal flowing water and brings up pond, it is existing so as to overcome
Cultivation apparatus in water need to be regularly replaced in a relatively short period of time, living environment is cultivated and is not sufficiently stable for hydrostatic
Shortcoming.
To achieve the above object, the utility model provides a kind of collecting dirt type aquatic animal flowing water cycle and brings up pond, wherein,
Including：Pond body；Blowdown apparatus, including：Dirt collection mouth is set to the centre of the bottom wall of the pond body；Blow-off pipe, one end with
The dirt collection mouth connection, and a scum cock is provided on the blow-off pipe；And fence, it is set to the bottom wall of the pond body
On, and the fence is covered in the top of the dirt collection mouth；Water filtering tube, diameter is up big and down small, and the upper end of the water filtering tube is provided with
Opening, and the outside wall surface of the water filtering tube and internal face are in latticed；Filled with extremely between the outside wall surface and internal face of the water filtering tube
Few one layer of drainage layer being made of filtering material；The water filtering tube is set in the pond body and positioned at the upper end of the fence；With
And water circle device, including：Water pumper is set in the inner cavity of the water filtering tube；Drinking-water pipe, lower end are drawn water with described
Machine connects；Isocon is set up in the top of the pond body, and the isocon is connect with the upper end of the drinking-water pipe；And into
Water pipe, at least two water inlet pipes are set to along same even circumferential on the side wall of the pond body；And each water inlet pipe with
The isocon is attached by a pipeline.
Preferably, in above-mentioned technical proposal, if filled with described in dried layer between the outside wall surface of the water filtering tube and internal face
Drainage layer, wherein the filtering material of the drainage layer on the outermost side is continuous for synthetic fibers.
Preferably, in above-mentioned technical proposal, the filtering material synthetic fibers cotton of other drainage layers, sponge fiber, work
Property charcoal, quartz, coarse sand or biological ball.
Preferably, in above-mentioned technical proposal, micro- life for purifying water is adsorbed on the filtering material of the drainage layer
Object.
Preferably, in above-mentioned technical proposal, the outside wall surface of the water filtering tube and the radial section of internal face are in plum blossom-shaped.
Preferably, in above-mentioned technical proposal, the pond body is in the cylindrical shape of upper end opening, and the lower end of the pond body is in cone
Shape；The axis of the water filtering tube and the axis of the pond body are on the same line.
Preferably, in above-mentioned technical proposal, the axis of the water inlet pipe and the axis of the pond body mutually stagger.
Preferably, in above-mentioned technical proposal, the quantity of the water inlet pipe is two.
Preferably, in above-mentioned technical proposal, the lower end of the pond body is provided with an oxygen hose, the oxygen hose and source of oxygen
It is attached, and the nozzle that the oxygen hose is located in the pond body is provided with gas stone.
Compared with prior art, the utility model has the advantages that：
1st, the utility model can purify the water in pond body by the drainage layer in water filtering tube, not need to frequently more
The water in pond body is changed, and is circulated the water in pond body by water circle device, and can lead to the dirt of larger particles
The effect of centripetal force is crossed automatically into in dirt collection mouth, so as to which pond body be enable to provide life that is good and stablizing for aquatic animal
Environment, moreover it is possible to play the role of energy saving.
If the 2, the utility model is provided with dried layer drainage layer, outermost drainage layer is continuous for synthetic fibers, and drainage layer
The microorganism for purifying water is adsorbed on filtering material, with good strainability.
3rd, the axis of the water inlet pipe of the utility model is mutually staggered with the axis of pond body, so as to enable the water in pond body
It is steadily flowed along same direction, to simulate the environment for the circulating water that field ecosystem is stablized, promotes the life of aquatic animal Jiankang
It is long.
5th, the pond body of the utility model is provided with oxygen hose, with timing to carrying out micro-pore oxygenation in pond body, so as to make
There is sufficient oxygen to supply aquatic animal life in the water of pond body.
Description of the drawings
Fig. 1 is to be recycled to bring up pond and split the stereochemical structure after pond body according to the utility model collecting dirt type aquatic animal flowing water to show
It is intended to.
Fig. 2 is that the vertical view for bringing up pond is recycled according to the utility model collecting dirt type aquatic animal flowing water.
Main appended drawing reference explanation：
1- pond bodies；2- dirt collection mouths；3- blow-off pipes, 31- scum cocks；4- fence；5- water filtering tubes, 51- drainage layers；6- draws water
Machine；7- drinking-water pipes；8- isocons；9- water inlet pipes, 91- pipelines.
Specific embodiment
Below in conjunction with the accompanying drawings, specific embodiment of the present utility model is described in detail, it is to be understood that this practicality
Novel protection domain is not restricted by specific implementation.
Unless otherwise explicitly stated, otherwise in entire disclosure and claims, term " comprising " or its change
It changes such as "comprising" or " including " etc. and will be understood to comprise stated element or component, and do not exclude other members
Part or other component parts.
Fig. 1 to Fig. 2 is shown to be recycled according to a kind of collecting dirt type aquatic animal flowing water of the utility model preferred embodiment
Bring up pond structure diagram, the collecting dirt type aquatic animal flowing water cycle bring up pond include pond body 1, blowdown apparatus, water filtering tube with
And water circle device, with reference to figure 1, pond body 1 is in the cylindrical shape of upper end opening, certainly, pond body 1 can also set ovalisation or its
His shape.The lower end of pond body 1 is in cone-shaped tapered from top to bottom, is similar to downwardly projecting pan bottom shape.With reference to figure 1,
Blowdown apparatus includes dirt collection mouth 2, blow-off pipe 3 and fence 4, the centre of the recessed bottom wall in pond body 1 of dirt collection mouth 2, and dirt collection mouth 2 is in
Taper is poroid, and its axis and the axis of pond body 1 are on the same line.One end of blow-off pipe 3 is connect with dirt collection mouth 2, and blowdown
Scum cock 31 is provided on pipe 3.Fence 4 is set to the centre of the bottom wall of pond body 1, and fence 4 is covered in the upper of dirt collection mouth 2
Side.The particles such as the excrement of dissolved aquatic animal and swill can not enter dirt collection to residual by fence 4 in water
In mouth 2, but aquatic animal cannot enter dirt collection mouth 2 by fence 4.Scum cock 31 is opened, just can be excluded in dirt and pond body 1
Water, pond body 1 is cleared up with facilitating.
With continued reference to Fig. 1, water filtering tube 5 is set in the pond body 1 and is located at the upper end of fence, and diameter is up big and down small,
I.e. water filtering tube 5 is up big and down small conically shaped, and such structure can reduce deposition of the dirt on the side wall of water filtering tube 5.Filter
With the axis of pond body 1 on the same line, the water level in pond body 1 is less than the upper end of water filtering tube 5 to the axis of water drum 5.Water filtering tube 5
Upper end is provided with opening, and the outside wall surface of the side wall of water filtering tube 5 and internal face are in latticed, to allow the water to flow into from pond body 1
Into water filtering tube 5.With reference to figure 2, it is made of between the outside wall surface and internal face of water filtering tube 5 filled at least one layer filtering material
Drainage layer 51.Preferably, if being filled with dried layer drainage layer 51 between the outside wall surface of water filtering tube 5 and internal face, between drainage layer 51
Filter can be provided with, wherein the filtering material of drainage layer on the outermost side 51 is synthetic fibers cotton, the filter of other drainage layers
Water material can be synthetic fibers cotton, sponge fiber, activated carbon, quartz, coarse sand or biological ball etc..Still further preferably, it filters
The microorganism for purifying water is adsorbed on the filtering material of water layer 51, so that the side wall of water filtering tube 5 has good drainage
Performance, so as to improve the ability purified to water quality.Microorganism for purifying water can be bacillus, nitrify carefully
Bacterium, denitrifying bacteria etc..
With continued reference to Fig. 1, water circle device includes water pumper 6, drinking-water pipe 7, isocon 8 and water inlet pipe 9, water pumper 6
It being set in the inner cavity of water filtering tube 5, the lower end of drinking-water pipe 7 is connect with water pumper 6, and isocon 8 is set up in the top of pond body 1, and
Isocon 8 is connect with the upper end of drinking-water pipe 7.At least two water inlet pipes 9 are set to the side wall of pond body 1 along same even circumferential
On, and each water inlet pipe 9 is attached with isocon 8 by a pipeline 91, water inlet pipe 9 run through the side wall of pond body 1 with pond body 1
Inside connection.The water of pond body 1 is entered after side wall and drainage layer 51 purification of water filtering tube 5 in the inner cavity of water filtering tube 5, is taken out
When water dispenser 6 works, just purified water can be transported to isocon 8 from drinking-water pipe 7, isocon 8 is again by pipeline 91 net
Water after change is transported to water inlet pipe 9, and purified water eventually passes through water inlet pipe 9 and flows back into pond body 1, to realize to water quality
Automatic cycle, and the water in pond body 1 is made to be in the state flowed.Preferably, with continued reference to Fig. 2, the axis and pond body of water inlet pipe 9
1 axis mutually staggers, i.e., with vertical view as shown in Figure 2 from the point of view of, water inlet pipe 9 is obliquely installed on the side wall of pond body 1, pipe
Mouth not faces the axis of pond body 1, but amesiality, so as to which water be made to carry out stabilization along same direction in pond body 1
It circulates, with the environment of the quasi stationary circulating water of mould.It is further preferred that the quantity of water inlet pipe 9 is two, due to being uniform
It is set on the side wall of pond body 1, therefore the two water inlet pipes 9 are symmetrically distributed in the both sides of pond body 1.Still further preferably
Ground, the outside wall surface of water filtering tube 5 and the radial section of internal face be in plum blossom-shaped, so as to increase the area of its surfaces externally and internally, water into
When row circulates, by the outer surface of water filtering tube 5 to water into row buffering, to prevent water from flowing through soon.In addition, it is recycled in water
During flowing, the particles such as excrement and swill of the aquatic animal that residual is not dissolved in water are in the effect of centripetal force
Under to facilitate carry out sewage treatment, and the clean level of the water of pond body 1 can be improved automatically into in dirt collection mouth 2.
Further, the lower end of pond body 1 is provided with an oxygen hose (figure does not regard), and oxygen hose is attached with source of oxygen, oxygen
Air source can be inflator pump and oxygen tank etc., and the nozzle that oxygen hose is located in pond body is provided with gas stone, oxygen hose passes through micropore
The mode timing of oxygenation is passed through oxygen into the water of pond body 1, so as to make to supply with sufficient oxygen in the water of pond body 1
Aquatic animal lives.
The utility model can purify the water in pond body 1 by the drainage layer 51 of water filtering tube 5, not need to frequently more
The water in pond body is changed, and is circulated the water in pond body 1 by water circle device, and can lead to the dirt of larger particles
The effect of centripetal force is crossed automatically into in dirt collection mouth 2, so as to which pond body 1 be enable to provide good Ecology flowing water for aquatic animal
And the living environment stablized, moreover it is possible to play the role of energy saving.
The description of the aforementioned specific exemplary embodiment to the utility model is in order to illustrate and illustration purpose.These
Description is not wishing to the utility model is defined to disclosed precise forms, and it will be apparent that according to the above instruction, can carry out
Many change and variations.The purpose of selecting and describing the exemplary embodiment is that explain the specific principle of the utility model
And its practical application, so that those skilled in the art can realize and utilize a variety of different examples of the utility model
Property embodiment and various chooses and changes.The scope of the utility model is intended to by claims and its waits similar shapes
Formula is limited.
Claims (9)
1. a kind of collecting dirt type aquatic animal flowing water cycle brings up pond, which is characterized in that including：
Pond body；
Blowdown apparatus, including：
Dirt collection mouth is set to the centre of the bottom wall of the pond body；
Blow-off pipe, one end is connect with the dirt collection mouth, and a scum cock is provided on the blow-off pipe；And
Fence is set on the bottom wall of the pond body, and the fence is covered in the top of the dirt collection mouth；
Water filtering tube, diameter is up big and down small, and the upper end of the water filtering tube is provided with opening, and the outside wall surface and internal face of the water filtering tube
In latticed；Filled at least one layer of drainage layer being made of filtering material between the outside wall surface and internal face of the water filtering tube；It should
Water filtering tube is set in the pond body and positioned at the upper end of the fence；And
Water circle device, including：
Water pumper is set in the inner cavity of the water filtering tube；
Drinking-water pipe, lower end are connect with the water pumper；
Isocon is set up in the top of the pond body, and the isocon is connect with the upper end of the drinking-water pipe；And
Water inlet pipe, at least two water inlet pipes are set to along same even circumferential on the side wall of the pond body；It and each should be into
Water pipe is attached with the isocon by a pipeline.
2. collecting dirt type aquatic animal flowing water cycle according to claim 1 brings up pond, which is characterized in that the water filtering tube
If filled with drainage layer described in dried layer between outside wall surface and internal face, wherein the filtering material of the drainage layer on the outermost side
For synthetic fibers silk floss.
3. collecting dirt type aquatic animal flowing water cycle according to claim 2 brings up pond, which is characterized in that other described drainages
The filtering material of layer is synthetic fibers cotton, sponge fiber, activated carbon, quartz, coarse sand or biological ball.
4. collecting dirt type aquatic animal flowing water cycle according to claim 1 brings up pond, which is characterized in that the drainage layer
The microorganism for purifying water is adsorbed on filtering material.
5. collecting dirt type aquatic animal flowing water cycle according to claim 1 brings up pond, which is characterized in that the water filtering tube
The radial section of outside wall surface and internal face is in plum blossom-shaped.
6. collecting dirt type aquatic animal flowing water cycle according to claim 1 brings up pond, which is characterized in that the pond body is presented
The cylindrical shape of end opening, and the tapered shape in lower end of the pond body；There are dirt collection mouth, the axis of the water filtering tube and institute in bottom of pond center
State the axis of pond body on the same line.
7. collecting dirt type aquatic animal flowing water cycle according to claim 6 brings up pond, which is characterized in that the water inlet pipe
Axis and the axis of the pond body mutually stagger.
8. collecting dirt type aquatic animal flowing water cycle according to claim 7 brings up pond, which is characterized in that the water inlet pipe
Quantity is two.
9. collecting dirt type aquatic animal flowing water cycle according to claim 1 brings up pond, which is characterized in that under the pond body
End is provided with an oxygen hose, and the oxygen hose is attached with source of oxygen, and the oxygen hose is located at the nozzle in the pond body
It is provided with gas stone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721260656.2U CN207505747U (en) | 2017-09-28 | 2017-09-28 | Collecting dirt type aquatic animal flowing water cycle brings up pond |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721260656.2U CN207505747U (en) | 2017-09-28 | 2017-09-28 | Collecting dirt type aquatic animal flowing water cycle brings up pond |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207505747U true CN207505747U (en) | 2018-06-19 |
Family
ID=62533828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721260656.2U Expired - Fee Related CN207505747U (en) | 2017-09-28 | 2017-09-28 | Collecting dirt type aquatic animal flowing water cycle brings up pond |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207505747U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114304042A (en) * | 2021-12-29 | 2022-04-12 | 安徽双水农业科技有限公司 | Rice field lobster breeding water filtering treatment device and treatment method |
-
2017
- 2017-09-28 CN CN201721260656.2U patent/CN207505747U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114304042A (en) * | 2021-12-29 | 2022-04-12 | 安徽双水农业科技有限公司 | Rice field lobster breeding water filtering treatment device and treatment method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105393959B (en) | A kind of totally-enclosed high density small size pond fully-automatic intelligent aquaculture system | |
| CN101215069B (en) | Industrialization ecological treatment circulation utilization system for fish culture waste water | |
| CN204244906U (en) | Eel culture device | |
| CN102318578B (en) | Pipeline system for industrial cultivation of Trachidermus fasciatus | |
| CN205071923U (en) | Batch production circulating water breeding device | |
| CN106508773B (en) | Intelligent circulating water aquaculture system | |
| CN108271730A (en) | A kind of low-carbon zero-emission industrial circulating water cultivating system based on anaerobic denitrifying | |
| CN202340616U (en) | Combined aeration water-purification device for culture pond | |
| CN108739617A (en) | A kind of sturgeon industrial circulating water cultivating water system | |
| CN104145858A (en) | Large-scale high-density oyster spat breeding system | |
| CN109924151A (en) | A kind of device for culturing prawn and method of continuous concentration blowdown | |
| CN103053447A (en) | Purified water aquaculture system using aeration assembly | |
| CN104969899A (en) | Automatic sewage disposal device and method for marspenaeus japonicus breeding pool | |
| CN106305574B (en) | The Terrapin raising device of water is changed in cycle operation | |
| CN104926027A (en) | Recycling method of water for seedling culture in fresh water | |
| CN207505747U (en) | Collecting dirt type aquatic animal flowing water cycle brings up pond | |
| CN107549086A (en) | Pond is brought up in the circulation of collecting dirt type aquatic animal flowing water | |
| CN206390030U (en) | A kind of intelligent circulating water cultivating system | |
| CN206314412U (en) | Efficient circulation water cultivating system | |
| CN208029987U (en) | A kind of low-carbon zero-emission industrial circulating water cultivating system based on anaerobic denitrifying | |
| TW201600469A (en) | Aquaculture water treatment and oxygen increasing equipment | |
| CN109006648A (en) | Water body is removed contamination system and its application | |
| CN205695043U (en) | A kind of flowing water high yielding culture system | |
| CN109430151B (en) | Ecological fish farming equipment circulates | |
| CN208791377U (en) | A kind of device of aquaculture pond water body high-efficient purification |
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: 20180619 |