CN104929086B - Water gate stilling pool base plate reinforcing structure - Google Patents
Water gate stilling pool base plate reinforcing structure Download PDFInfo
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- CN104929086B CN104929086B CN201510393730.7A CN201510393730A CN104929086B CN 104929086 B CN104929086 B CN 104929086B CN 201510393730 A CN201510393730 A CN 201510393730A CN 104929086 B CN104929086 B CN 104929086B
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- 230000003014 reinforcing effect Effects 0.000 title abstract description 6
- 238000001363 water suppression through gradient tailored excitation Methods 0.000 title abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 94
- 238000010276 construction Methods 0.000 claims abstract description 29
- 230000002787 reinforcement Effects 0.000 claims abstract description 26
- 238000012423 maintenance Methods 0.000 claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 8
- 239000010959 steel Substances 0.000 claims abstract description 8
- 230000006698 induction Effects 0.000 claims description 24
- 230000009467 reduction Effects 0.000 claims description 18
- 239000003651 drinking water Substances 0.000 claims description 14
- 235000020188 drinking water Nutrition 0.000 claims description 14
- 230000009471 action Effects 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 3
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- 238000011144 upstream manufacturing Methods 0.000 abstract description 5
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- 239000000203 mixture Substances 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
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- 239000011083 cement mortar Substances 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
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- 230000008595 infiltration Effects 0.000 description 3
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- 230000002745 absorbent Effects 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
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- 206010030113 Oedema Diseases 0.000 description 1
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- 239000002699 waste material Substances 0.000 description 1
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Abstract
The invention relates to a stilling pool maintenance method used in a water conservancy project, in particular to a water gate stilling pool base plate reinforcing structure and a construction method thereof. The construction method comprises the steps of chiselling on an original base plate, drainage system arrangement, steel mesh reinforcement arrangement, concrete casting and maintenance. By means of the scheme, a water gate stilling pool base plate is reinforced and maintained, construction cost can be saved, construction time can be saved, upstream retained water is not needed to be emptied, and water resource loss is reduced.
Description
Technical field
The application is related to the stiling basin method for maintaining in hydraulic engineering, and more particularly to a kind of sluice force reduction pool bottom reinforces knot
Structure.
Background technology
In water conservancy projects, for the big-and-middle-sized sluice of water drainage, stiling basin is designed with, stiling basin is the important composition of sluice
Part, the hidden safety for whether determining to directly influence lock body of its structure, and then threaten the person and wealth of the downstream people
Safety is produced, as stiling basin bears sluicing for a long time, stiling basin basal surface causes pitted skin dew muscle after certain hour, in the past this kind
The stiling basin patient's condition is keeped in repair, and more using emptying upstream inpoundment, reduces stiling basin infiltration intensity and water percolating capacity, and then monoblock stiling basin is torn open
Except reconstruction, however, emptying upstream inpoundment can then cause huge water resource waste, do not discharge water and because stiling basin is produced in low-lying place
Life is seeped water upwards, therefore maintenance and reinforcement difficulty of construction is very big.
The content of the invention
In order to solve the above problems, the present invention provides a kind of sluice force reduction pool bottom ruggedized construction, using by stiling basin
Ooze, permeable orderly derivation, solve the water percolating capacity considerable influence construction problem in maintenance, by creating dry ground environment, then in original
Implement ruggedized construction on base plate, reach the purpose of maintenance and reinforcement；And using the construction method of the present invention, then need not be vented upstream storage
Water, it is possible to reduce water resource lose, also need not monoblock stiling basin remove rebuild, to reach the purpose for economizing on resources.
The technical solution used in the present invention is as follows：
A kind of sluice force reduction pool bottom ruggedized construction, including former base plate and ruggedized construction, is characterized in that：Dig on former base plate
Hair, arranges drainage system, arranges bar-mat reinforcement, casting concrete, maintenance.
Further, the former base plate place of needing repairing clears up debris, and line is cut, and dabbing, described dabbing depth are more than
2cm, surrounding groove depth 10-15cm, inner edge are provided with 1:2 angle of inclination；The residue of clean roughened surface is washed away with water, for face
The less stiling basin of product, can do integral reinforcing on former base plate, and the stiling basin big for area can be reinforced with fraction block.
Further, drainage system includes water pump and collector pipe, and described water pump is provided with water inlet pipe and outlet pipe, described
Water inlet pipe is provided with multiple points of water inlet pipes, point water inlet pipe connection drinking-water pipe, for point water inlet pipe being not required to, can tighten spiral shell in termination
Silk/nut is blocked, and prevention gas leakage effect is drawn water, draw water joint of the drinking-water pipe other end connect setting on collector pipe, drinking-water pipe
From the small-bore PU pipes for having certain degree of hardness, described collector pipe is longitudinally disposed, PVC of the collector pipe using diameter 10cm or so
Pipe, the former base plate rises of lower end insertion, joint bottom of drawing water in collector pipe are provided with grid, and to stop debris, grid top sets
There is buoyancy aid, collector pipe upper oral part is provided with induction apparatuss, water level is raised in collector pipe makes buoyancy aid rising be close to induction apparatuss, and induction apparatuss send
Open water pump signal；Described outlet pipe is provided with detector, and detector is detected,
Detector sends the signal that switches off the pump, during realize Auto-drainage.
Further, screw-thread steel of the bar-mat reinforcement for diameter 10-20mm, its longitudinal and transverse arrangement two-layer composition spacing 20-50cm
Rectangle net trellis, and anchor rib is interval with the longitudinal and transverse cross point of bar-mat reinforcement.
Preferably, reinforcing concrete pours heel row water curing 24h extremely using the identical label of former base plate or C30 concrete
Initial set, subsequently stops draining, natural waterflooding maintenance.
Preferably, induction apparatuss and detector are equipped with wireless transmitter module, and described water pump is provided with PLC, described
PLC be provided with wireless receiving module, after which receives the wireless signal that induction apparatuss and detector send, perform corresponding
Start or shutdown action.
Further, anchor rib is vertically arranged, and original more than bottom plate depth 15cm is inserted in its lower end, and reinforcing bar is hooked in upper end bending
Net, anchor rib are anchored with cement mortar.
The invention also discloses the construction method of above-mentioned sluice force reduction pool bottom ruggedized construction, its feature includes following work
Skill and step：
1) drainage system is set：
Water in emptying/evacuation stiling basin, encircles and hunts down weir and isolates force reduction pool bottom to be repaired, catchment, clearly in draining pond
Impurity removing, emits at water punching in force reduction pool bottom or emits the pvc pipe collector pipe that water hole is inserted into corresponding size, collector pipe original
High 50-100cm, using the cementing PVC collector pipes of glue and base plate, infiltration in cementing a few minutes is pressed into ttom of pipe with absorbent sponge,
Do waterproof concrete patch foot in pipe outboard feet after initial set to reinforce, it is also possible in pipe outer wall concrete mortar reinforcing of catchmenting, make PVC
Collector pipe uprightly firmly, arranges the joint that draws water at the outer middle part of collector pipe, and joint bottom of drawing water in collector pipe arranges grid, in net
Lattice top arranges buoyancy aid, arranges induction apparatuss in collector pipe upper oral part, connects drinking-water pipe on collector pipe draws water joint, and drinking-water pipe is another
One end connection water pump point water inlet pipe, in collector pipe, water level raises buoyancy aid and is close to induction apparatuss, and induction apparatuss send unlatching water pump signal, water
The outlet pipe of pump is provided with detector, and detector is detected, and detector sends closing
Water pump signal.
2) dabbing：
Debris are cleared up at the former base plate place of needing repairing, area is reinforced and is greater than impaired area, rule, cutting, dabbing, dabbing
Depth is more than 2cm, and well damage position dabbing depth is increased, and surrounding groove depth 10-15cm, side groove inner edge are set to incline
Angle, its angle of inclination are 1:2.
3) lay bar-mat reinforcement：
Drill in backplate surface, pitch-row 50-100cm, aperture 3-4cm, deep 20-30cm are adopted and the same label of former bottom board concrete
Cement mortar be Anchor Agent, anchor inserts Φ 12mm anchor ribs, and anchor rib is higher by surface 3-5cm, after Anchor Agent is hardened 12 hours, cloth
Put and weld upper reinforcement net, screw-thread steel of the bar-mat reinforcement using diameter 10-20mm, its longitudinal and transverse arrangement two-layer composition spacing 20-
The rectangle net trellis of 50cm, muscle in length and breadth, the joining firm welding of anchor rib, bar-mat reinforcement pave 3～5cm using prefabricated mortar block
Highly, the crotch of one setting of anchor rib catches on bar-mat reinforcement；The down-set crotch of steel bar end in the groove of surrounding.
4) casting concrete：
Concrete with label or C30 labels, is poured thickness more than 10CM, is vibrated floating from former bottom board concrete, draining maintenance
24h subsequently stops draining, natural waterflooding maintenance to initial set.
5), after concrete final set, the PVC collector pipes beyond concrete surface are extracted or is cut out, non-sand concrete prefabricated section is filled in.
Beneficial effects of the present invention
The present invention has following technique effect after adopting above technical scheme：1st, draining in construction technology of the present invention
System, simple structure are easy for installation, automatic running in engineering；2nd, cost is saved, is 1/10th of preceding method in cost,
Even more save；3rd, the engineering time is saved, man-hour more than 70% can be saved；4th, using bar planting measure, fixed bar-mat reinforcement, and former concrete bottom
Plate combines together, with newly-built zero difference in quality；5th, using side groove processing mode, and adjacent edge block drop-over is anti-impact, durable；6、
Operation side is little, less to surrounding environment influence；7th, it is not required to be vented upstream inpoundment, reduces water resource loss.
Description of the drawings
Fig. 1 is the overlooking the structure diagram of the sluice force reduction pool bottom ruggedized construction of the present invention, is not pour coagulation in figure
State before native；
Fig. 2 is the A-A cross-section structure enlarged diagrams of Fig. 1；
Fig. 3 is the dimensional structure diagram of Fig. 1；
Fig. 4 be the present invention it is supporting be water pump structure schematic diagram；In upper figure, the not connected water pump of drinking-water pipe divides water inlet pipe and catchments
The joint that draws water of pipe.
In figure, 1- original base plates, 2- sides groove, 3- bar-mat reinforcements, 4- anchor ribs, 5- collector pipes, 6- draw water joint, 7- induction apparatuss,
8- buoyancy aids, 9- grids, 10- outlet pipes, 11- water pumps, 12- point of water inlet pipe, 13- water inlet pipes, 14- detectors.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
Embodiment, refer to the attached drawing：A kind of sluice force reduction pool bottom ruggedized construction, including former base plate 1 and ruggedized construction, which is special
Levying is：On former base plate 1, dabbing goes out ruggedized construction groove shapes, arranges drainage system, arranges bar-mat reinforcement, and casting concrete is protected
Support.
Further, 1 place of needing repairing of former base plate cleaning debris, line, cutting, dabbing, dabbing depth be more than 2cm, four
2 depth 10-15cm of circumferential groove, inner edge are provided with angle of inclination；For the less stiling basin of area, can do whole on former base plate 1
Body is reinforced, and the stiling basin big for area can be reinforced with fraction block.
Further, drainage system is water pump 11 and collector pipe 5, and water pump 11 is provided with water inlet pipe 13 and outlet pipe 10, intakes
Pipe 13 is provided with multiple points of water inlet pipes 12, point connection drinking-water pipe of water inlet pipe 12, for point water inlet pipe 12 being not required to, can twist in termination
Tight screw closure, pre- anti-gas-leak, draw water joint 6 of the drinking-water pipe other end connect setting on collector pipe 5, drinking-water pipe is selected one
Determine the small-bore PU pipes of hardness, collector pipe 5 is longitudinally disposed, and pvc pipe of the collector pipe 5 using diameter 10cm or so, lower end insertion are former
1 rises of base plate, 6 bottom of joint of drawing water in collector pipe 5 are provided with grid 9, and to stop debris, 9 top of grid is provided with buoyancy aid 8,
5 upper oral part of collector pipe is provided with induction apparatuss 7, and in collector pipe 5, water level is raised makes the rising of buoyancy aid 8 be close to induction apparatuss 7, and induction apparatuss 7 send
Open 11 signal of water pump；Outlet pipe 10 is provided with detector 14, and detector 14 is detected
Less than setting value, detector 14 sends 11 signals that switch off the pump, and Auto-drainage is realized in engineering.
Further, screw-thread steel of the bar-mat reinforcement 3 for diameter 10-20mm, its longitudinal and transverse arrangement two-layer composition spacing 20-50cm
Rectangle net trellis, and be interval with anchor rib 4 in 3 longitudinal and transverse cross point of bar-mat reinforcement.
Preferably, the concrete of ruggedized construction is poured rear draining and is supported using former 1 identical label of base plate or C30 concrete
24h is to initial set for shield, subsequently stops draining, natural waterflooding maintenance.
Preferably, induction apparatuss 7 and detector 14 are wireless transmitter, and described water pump 11 is provided with PLC, described
PLC be provided with wireless receiving module, after which receives the wireless signal that induction apparatuss and detector send, perform corresponding
Start or shutdown action.
Further, anchor rib 4 is vertically arranged, and original more than base plate 15cm is inserted in its lower end, and bar-mat reinforcement is hooked in upper end bending
3。
The present embodiment also discloses the construction method of above-mentioned sluice force reduction pool bottom ruggedized construction, including following technique and
Step：
1) drainage system is set：
Water in emptying/evacuation stiling basin, encircles and hunts down weir and isolates force reduction pool bottom to be repaired, drain hydrops in pond, clearly
Impurity removing, emits at water punching in force reduction pool bottom or emits the pvc pipe collector pipe 5 that water hole is inserted into corresponding size original, catchment
5 high 50-100cm of pipe, using the cementing PVC collector pipes 5 of glue and base plate 1, infiltration in cementing a few minutes is pressed into absorbent sponge
Ttom of pipe, is done waterproof concrete patch foot in pipe outboard feet after initial set and is reinforced, or filled in 1 junction of base plate collector pipe 5 is cylindrical
Concrete mortar, does waterproof concrete patch foot in pipe outboard feet and reinforces, and arranges the joint 6 that draws water at 5 outer middle part of collector pipe, in collector pipe
Draw water in 56 bottom of joint setting grid 9, to prevent debris suction water pump, arranges buoyancy aid 8 on 9 top of grid, on collector pipe 5
Oral area arranges induction apparatuss 7, connects drinking-water pipe, drinking-water pipe other end connection 11 points of water inlet pipes of water pump on collector pipe 5 draws water joint 6
12, in arbitrary collector pipe 5, water level raises buoyancy aid 8 and is close to induction apparatuss 7, induction apparatuss 7 send unlatching 11 signal of water pump, and water pump 11 goes out
Water pipe 10 is provided with detector 14, and detector 14 is detected, and detector 14 sends
Switch off the pump signal, and Auto-drainage is realized in engineering.
2) dabbing：
Debris are cleared up at 1 place of needing repairing of former base plate, area is reinforced and is greater than impaired area, generally more than damage edge
More than 20cm, line, cutting, dabbing, dabbing depth are more than 2cm, and well damage position dabbing depth increases, will exceed and damage deep
Degree, surrounding groove depth 10-15cm, side groove inner edge are set to inclination angle, and its angle of inclination is 1:2.
3) lay bar-mat reinforcement：
Drill in backplate surface, pitch-row 50-100cm, aperture 3-4cm, deep 20-30cm are adopted and the same label of 1 concrete of former base plate
Cement mortar be Anchor Agent, anchor inserts Φ 12mm anchor ribs 4, and anchor rib 4 is higher by surface 3-5cm, after Anchor Agent is hardened 12 hours,
Arrangement and welding upper reinforcement net 3, screw-thread steel of the bar-mat reinforcement 3 using diameter 10-20mm, its longitudinal and transverse arrangement two-layer composition spacing
The rectangle net trellis of 20-50cm, longitudinal and transverse muscle, the joining firm welding of anchor rib, bar-mat reinforcement pave 3- using prefabricated mortar block
5cm height, the crotch that 4 upper end of anchor rib is arranged catch on bar-mat reinforcement 3；Steel bar end in surrounding groove 2 is down-set curved
Hook.
4) casting concrete：
Concrete with label or C30 labels, is poured thickness more than 10CM, is vibrated floating from former 1 concrete of base plate, draining maintenance
24h subsequently stops draining, natural waterflooding maintenance to initial set.
5), after concrete final set, the PVC collector pipes 5 beyond concrete surface are extracted or is cut out, non-sand concrete prefabricated section is filled in.
Drainage system operation principle：Multiple collector pipes are connected with water pump point water inlet pipe respectively by drinking-water pipe, arbitrary to catchment
Pipe water level is raised, and internal buoyancy aid raises the induction apparatuss for being close to top, and induction apparatuss send opening water pump signal, water inlet pipe internal water
It is extracted, water level decreasing, buoyancy aid declines the apopore blocked inside the joint that draws water, it is to avoid air inlet herein affects other bank of tubes that catchment
Water, until the water in all collector pipes is exhausted, detects positioned at the detector of outlet pipe and stop in outlet pipe water outlet or less than setting
Definite value, detector send the signal that switches off the pump, therefore Auto-drainage is capable of achieving in engineering.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein, including technology art
Language and scientific terminology, with the application art in those of ordinary skill general understanding identical meaning.Should also
It is understood by, those terms defined in such as general dictionary are should be understood that with the meaning in the context with prior art
The consistent meaning of justice, and unless defined as here, will not be with idealizing or excessively formal implication is explaining.
The implication of " inside and outside " described herein is referred to relative to equipment itself, the side inside sensing equipment
To for interior, otherwise it is outer.
It can also pass through between part that the implication of " connection " described herein can be being directly connected between part
Other parts are indirectly connected with.
With the above-mentioned desirable embodiment according to the application as enlightenment, by above-mentioned description, relevant staff is complete
Various change and modification can be carried out in the range of without departing from present techniques thought entirely.This application it is technical
Scope is not limited to the content in description, it is necessary to its technical scope is determined according to right.
Claims (6)
1. a kind of sluice force reduction pool bottom ruggedized construction, including former base plate and ruggedized construction, is characterized in that：Dig on former base plate
Hair, arranges drainage system, arranges bar-mat reinforcement, pours into a mould concrete, maintenance；
Described drainage system includes water pump and collector pipe, and described water pump is provided with water inlet pipe and outlet pipe, described water inlet pipe
Multiple points of water inlet pipes are provided with, point water inlet pipe connection drinking-water pipe, draw water joint of the drinking-water pipe other end connect setting on collector pipe,
Described collector pipe is longitudinally disposed, the former base plate rises of lower end insertion, and joint bottom of drawing water in collector pipe is provided with grid, on grid
Portion is provided with buoyancy aid, and collector pipe upper oral part is provided with induction apparatuss, and buoyancy aid is raised and is close to induction apparatuss, and induction apparatuss send unlatching water pump signal；
Described outlet pipe is provided with detector, and detector detects water outlet in outlet pipe, and, less than setting value, detector sends and switches off the pump
Signal.
2. sluice force reduction pool bottom ruggedized construction according to claim 1, it is characterised in that：The described former base plate of cleaning is needed
The debris of helpdesk are wanted, is rule, cut dabbing, described dabbing depth is more than 2cm, and surrounding groove depth 10-15cm, inner edge set
There is angle of inclination.
3. sluice force reduction pool bottom ruggedized construction according to claim 1, it is characterised in that：Described bar-mat reinforcement is diameter
The screw-thread steel of 10-20mm, its longitudinal and transverse arrangement two-layer constitute the rectangle net trellis of spacing 20-50cm, and in the longitudinal and transverse friendship of bar-mat reinforcement
Crunode is interval with anchor rib.
4. sluice force reduction pool bottom ruggedized construction according to claim 1, it is characterised in that：Described concrete using with
The concrete or C30 concrete of the identical label of former base plate, draining are conserved to initial set, subsequently stop draining, natural waterflooding maintenance.
5. sluice force reduction pool bottom ruggedized construction according to claim 3, it is characterised in that：Described induction apparatuss and detection
Device is equipped with wireless transmitter module, and described water pump is provided with PLC, and described PLC is provided with wireless receiving module,
After which receives the wireless signal that induction apparatuss and detector send, corresponding start or shutdown action are performed.
6. sluice force reduction pool bottom ruggedized construction according to claim 3, it is characterised in that：Described anchor rib vertically sets
Put, original more than base plate 15cm is inserted in its lower end, bar-mat reinforcement is hooked in upper end bending.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710101869.9A CN106759162B (en) | 2015-07-07 | 2015-07-07 | The construction method of sluice force reduction pool bottom ruggedized construction |
| CN201510393730.7A CN104929086B (en) | 2015-07-07 | 2015-07-07 | Water gate stilling pool base plate reinforcing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510393730.7A CN104929086B (en) | 2015-07-07 | 2015-07-07 | Water gate stilling pool base plate reinforcing structure |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710101869.9A Division CN106759162B (en) | 2015-07-07 | 2015-07-07 | The construction method of sluice force reduction pool bottom ruggedized construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104929086A CN104929086A (en) | 2015-09-23 |
| CN104929086B true CN104929086B (en) | 2017-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510393730.7A Expired - Fee Related CN104929086B (en) | 2015-07-07 | 2015-07-07 | Water gate stilling pool base plate reinforcing structure |
| CN201710101869.9A Expired - Fee Related CN106759162B (en) | 2015-07-07 | 2015-07-07 | The construction method of sluice force reduction pool bottom ruggedized construction |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710101869.9A Expired - Fee Related CN106759162B (en) | 2015-07-07 | 2015-07-07 | The construction method of sluice force reduction pool bottom ruggedized construction |
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| CN (2) | CN104929086B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110685307B (en) * | 2019-08-30 | 2021-04-23 | 中交武汉港湾工程设计研究院有限公司 | Method for repairing base of lower hinge point of mast crane arm frame |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2375520C1 (en) * | 2008-07-21 | 2009-12-10 | Василий Петрович Ягин | Open spillway on non-rock foundation |
| CN102002959B (en) * | 2010-12-21 | 2015-09-09 | 上海广联建设发展有限公司 | Underground structure substrate water draw-off and distribution method thereof |
| RU2506369C1 (en) * | 2012-08-31 | 2014-02-10 | Открытое акционерное общество "Федеральная гидрогенерирующая компания-РусГидро" | Method to erect thin-walled labyrinth water drain from prefabricated reinforced concrete elements |
| CN202945622U (en) * | 2012-11-26 | 2013-05-22 | 浙江信博城市建设有限公司 | Composite repaired structure of reinforced concrete base plate cracks in basement |
| CN104452690A (en) * | 2014-12-05 | 2015-03-25 | 长江勘测规划设计研究有限责任公司 | Concrete roughing pier flexible apron structure and construction method |
| CN106869092B (en) * | 2015-07-07 | 2018-09-18 | 宿迁峰驰安防有限公司 | A kind of construction method of force reduction pool bottom ruggedized construction |
-
2015
- 2015-07-07 CN CN201510393730.7A patent/CN104929086B/en not_active Expired - Fee Related
- 2015-07-07 CN CN201710101869.9A patent/CN106759162B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN104929086A (en) | 2015-09-23 |
| CN106759162B (en) | 2018-07-06 |
| CN106759162A (en) | 2017-05-31 |
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