CN105369788B - A kind of floatation type Double-layer flexible is netted to be blocked dirt and disappears unrestrained ecological grid device - Google Patents
A kind of floatation type Double-layer flexible is netted to be blocked dirt and disappears unrestrained ecological grid device Download PDFInfo
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- CN105369788B CN105369788B CN201510786680.9A CN201510786680A CN105369788B CN 105369788 B CN105369788 B CN 105369788B CN 201510786680 A CN201510786680 A CN 201510786680A CN 105369788 B CN105369788 B CN 105369788B
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- dirt
- ecological grid
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 63
- 239000010959 steel Substances 0.000 claims abstract description 63
- 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 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 230000000903 blocking effect Effects 0.000 claims abstract description 17
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 8
- 239000010935 stainless steel Substances 0.000 claims abstract description 8
- 239000004567 concrete Substances 0.000 claims description 25
- 239000000463 material Substances 0.000 claims description 8
- 239000004677 Nylon Substances 0.000 claims description 7
- 229920001778 nylon Polymers 0.000 claims description 7
- 239000004952 Polyamide Substances 0.000 claims description 6
- 239000000835 fiber Substances 0.000 claims description 6
- 229920002647 polyamide Polymers 0.000 claims description 6
- 239000011435 rock Substances 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 5
- 239000006185 dispersion Substances 0.000 claims description 4
- 239000004746 geotextile Substances 0.000 claims description 3
- 238000005098 hot rolling Methods 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims 1
- 238000004140 cleaning Methods 0.000 abstract description 4
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 230000008030 elimination Effects 0.000 description 4
- 238000003379 elimination reaction Methods 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 239000010813 municipal solid waste Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 241000216843 Ursus arctos horribilis Species 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 240000005373 Panax quinquefolius Species 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B15/00—Cleaning or keeping clear the surface of open water; Apparatus therefor
- E02B15/04—Devices for cleaning or keeping clear the surface of open water from oil or like floating materials by separating or removing these materials
- E02B15/06—Barriers therefor construed for applying processing agents or for collecting pollutants, e.g. absorbent
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/06—Moles; Piers; Quays; Quay walls; Groynes; Breakwaters ; Wave dissipating walls; Quay equipment
- E02B3/062—Constructions floating in operational condition, e.g. breakwaters or wave dissipating walls
-
- 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
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/11—Hard structures, e.g. dams, dykes or breakwaters
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Revetment (AREA)
Abstract
A kind of floatation type Double-layer flexible of the present invention is netted to be blocked dirt and disappears unrestrained ecological grid device, disappear unrestrained ecological grid including buoy ball and the dirt of blocking being vertically arranged, the lower end for blocking the dirty ecological grid of the wave that disappears is linked up with the bottom of by be fixed in first positioning pedestal at the bottom, and the upper end for blocking the dirty ecological grid of the wave that disappears is connected by the hook of buoy ball bottom with buoy ball.Side can be slided up and down by stainless steel link and fastener for connection with water level.Steel pipe is fixed on positioning pedestal.First positioning pedestal and the second positioning pedestal are formed by concreting, and the bottom hook and reinforcing bar hook are embedded in the first positioning pedestal, the second positioning pedestal respectively.A kind of floatation type Double-layer flexible of the present invention is netted to be blocked dirt and disappears and use buoy ball at the top of unrestrained ecological grid device, is allowed and is blocked the dirt wave net that disappears and suspend, the floating object that can intercept water surface is easy to follow-up cleaning, and can be worked under different water level conditions.Wherein block the dirt unrestrained ecological grid that disappear and inject double-deck pocket type flexible net, it is easy to use, it is pluggable.
Description
Technical field
The invention belongs to dirt cleaner technical field, it is related to that a kind of floatation type Double-layer flexible is netted to be blocked dirt and disappear unrestrained ecological grid dress
Put.
Background technology
It is existing to block dirty facility and mainly have trash rack, it is located at before water inlet, pasture and water, drift wood for blocking water-borne etc.
Debris（Commonly referred to as dirt）Frame grating structure, trash rack is by frame, and diaphragm plate and grizzly bar are constituted, and are supported on concrete pier wall
On, typically manufactured with steel.Depending on grizzly bar spacing is required according to dirt size, how many and utilization.
Existing most of facility for intercepting floater is generally fixed, and installing/dismounting is cumbersome, and to different water levels
Adaptability is not strong, not good to the suspension pollutant interception result in water body, and quantities is big during periodic cleaning pollutant, cleaning time
Number is more frequent, wastes a large amount of manpower, material resources and financial resources.On the other hand, the abatement ability for waves such as ship waves on the water surface is failed to understand
It is aobvious.
The content of the invention
Block dirt and disappear unrestrained ecological grid device it is an object of the invention to provide a kind of floatation type Double-layer flexible is netted, solve existing
Sewage blocking device present in technology it is not strong to the practicality of different water levels and to the abatement ability of wave it is inadequate the problem of.
The technical solution adopted in the present invention is, a kind of floatation type Double-layer flexible is netted to be blocked dirt and disappear unrestrained ecological grid device, bag
The dirt of blocking for including buoy ball and being vertically arranged disappears unrestrained ecological grid, described to block the dirty lower end for disappearing unrestrained ecological grid and is fixed on water by bottom hook
On the concrete block on bottom susceptor top, the upper end for blocking the dirty ecological grid of the wave that disappears passes through the lacing hole of buoy ball center and the closure of bottom
Safety hook is connected with buoy ball.
It is of the invention to be further characterized in that,
Further, block the dirty both sides for disappearing unrestrained ecological grid to be connected with hot rolled seamless steel tube by stainless steel annulus, the heat
Seamless steel pipe is rolled to be fixed on pedestal.
Further, block the dirt unrestrained ecological grid that disappear to be made up of more than two double-deck pocket type flexible nets, each double-deck pocket type is soft
Property Netcom cross stainless steel annulus and link together, the junction of the double-deck pocket type flexible net, which is provided with, laterally strengthens rope and longitudinal direction
Strengthen rope.
Further, the hollow caution mound of concrete of square shape is provided with the top of hot rolled seamless steel tube, the concrete is hollow
Caution mound inner vertical is provided with the joint bar of more than two, and the bottom level of the hollow caution mound of concrete is welded with the steel plate that binds,
The external side parallel of the hot rolled seamless steel tube sets H profile steel, and the H profile steel connects bind steel plate and pedestal, the bottom of the H profile steel
Portion is by two channel-section steel fixations triangular in shape, and the bottom that the channel-section steel is embedded in pedestal is welded with anchor plate, the H profile steel bottom dew
The part of horizontal setting for going out pedestal is welded with steel plate, and the part of horizontal that the H profile steel bottom is embedded in pedestal is provided with welded steel fabric
The lower horizontal of piece, the H profile steel and hot rolled seamless steel tube is welded with steel plate welding back cover.
Further, polyamide fibre 600 nylon rope of the rope for Φ 20 is laterally strengthened, longitudinally reinforced rope is Φ 20 Buddhist nun of polyamide fibre 1000
Long Sheng.
Further, block the dirty centre for disappearing unrestrained ecological grid and be provided with sandwich material.
Further, pedestal is disposed with concrete block, cemented rock layer and blotter from top to bottom, and the concrete block is set
In the centre position of pedestal upper surface, for fixing bottom hook.
Further, more than two jackstone bands are provided with pedestal and under water regardless of dispersion concrete pouring.
The beneficial effects of the invention are as follows this, which blocks dirty wave elimination facility, will adjust water quality exchanges between adjacent water system, pass through adjustment
The porosity of facility, its permeability rate maintains 10% or so, can effectively eliminate canal side shipping agency water wave or wave, and energy humorously
Filter the suspension such as canal side silt, and facility both sides will not form obvious water-head, maintain whole facility stability and
Security, the facility at utmost reduces influence of the Canal-water to adjacent water body in lake.
Block and polyethylene buoy ball is used at the top of dirty wave attenuating device, allow and block dirty wave elimination facility suspension, water surface can be intercepted
Floating object be easy to follow-up cleaning, and can be worked under different water level conditions.Wherein block dirt disappear unrestrained ecological grid inject it is double
Layer pocket type flexible net, it is easy to use, it is pluggable.The one of this flexible net greatly is characterized as that waves of ship can be eliminated, you can to eliminate
Ship inside Grand Canal is to the precious band bridge in side（History relic）Wave effect.
Blocking the material in dirty wave elimination facility has outstanding filtering, draining, isolation, reinforcement, antiseepage, protective action, has
Lightweight, tensile strength is high, good penetrability, high temperature resistant, anti-freezing, ageing-resistant, corrosion resistant characteristic, to the suspension in water body
The interception result of pollutant is good.
The wave that wherein disappears blocks dirty ecological grid, notable to dissipation and interception waves of ship and stormy waves effect.Intermediate sandwich material passes through
Experimental selection geotextiles.Geotextiles are inert carrier, obvious to the interception result of dirt with outstanding filtering, drainability,
Elimination ability to wave is also stronger.
Brief description of the drawings
Fig. 1, which is that a kind of floatation type Double-layer flexible of the invention is netted, blocks dirty structure of the unrestrained ecological grid device under deep water state that disappear
Figure.
Fig. 2, which is that a kind of floatation type Double-layer flexible of the invention is netted, blocks dirty structure of the unrestrained ecological grid device under shallow water state that disappear
Figure.
Fig. 3 is a kind of netted side view for blocking the dirty unrestrained ecological grid device that disappears of floatation type Double-layer flexible of the invention.
Fig. 4 is a kind of netted facility connecting pole signal for blocking the dirty unrestrained ecological grid device that disappears of floatation type Double-layer flexible of the invention
Figure.
Fig. 5 is a kind of part of the netted facility connecting pole for blocking the dirty unrestrained ecological grid device that disappears of floatation type Double-layer flexible of the invention
Enlarged drawing.
Fig. 6 is that a kind of netted facility connecting pole position for blocking the dirty ecological grid device of the wave that disappears of floatation type Double-layer flexible of the invention shows
It is intended to.
In figure, 1. buoy balls, 2. closure safety hooks, 3. double-deck pocket type flexible nets, 4., which block dirty ecology, disappears unrestrained grid, and 5. laterally
Strengthen nylon rope, 6. vertical reinforcement nylon ropes, 7. lacing holes, 8. sandwich materials, 9. bottoms hook, 10. concrete blocks, 11. cemented rocks
Layer, 12. blotters, the hollow caution mound of 13. concretes, 14. joint bars, 15. bind steel plate, 16.H shaped steel, 17. hot rolled seamless steel tubes,
18. steel plate is welded with channel-section steel, 19., 20. reinforced mesh, 21. anchor plates, 22. steel plates welding back cover, 23. jackstone bands, 24. under water
Regardless of dispersion concrete pouring, 25. stainless steel annulus, 26. pedestals.
Embodiment
The present invention is described in detail with reference to the accompanying drawings and detailed description.
The present invention, which is that a kind of floatation type Double-layer flexible is netted, to be blocked dirt and disappears unrestrained ecological grid device, and structure is wrapped as shown in Fig. 1 ~ Fig. 6
The dirt of blocking for including buoy ball 1 and being vertically arranged disappears unrestrained ecological grid 4, blocks the dirty lower end for disappearing unrestrained ecological grid 4 and is fixed on water by bottom hook 9
On the concrete block 10 on the top of bottom susceptor 26, lacing hole 7 and bottom of the upper end for blocking the dirty unrestrained ecological grid 4 that disappear by the center of buoy ball 1
The closure safety hook 2 in portion is connected with buoy ball 1.
The dirty both sides for disappearing unrestrained ecological grid 4 are blocked to be connected with hot rolled seamless steel tube 17 by stainless steel annulus 25, the hot rolling without
The seam pipe of steel 17 is fixed on pedestal 26.
Block the dirt unrestrained ecological grid 4 that disappear to be made up of more than two double-deck pocket type flexible nets 3, each double-deck pocket type flexible net 3 is led to
Cross stainless steel annulus 25 to link together, the junction of the double-deck pocket type flexible net 3 is provided with horizontal rope 5 and the longitudinal direction strengthened and added
Strong rope 6.
The top of hot rolled seamless steel tube 17 is provided with the hollow caution mound 13 of concrete of square shape, the hollow caution mound 13 of concrete
Portion is vertically arranged with the joint bar 14 of more than two, and the bottom level of the hollow caution mound 13 of concrete is welded with the steel plate 15 that binds, hot rolling without
The external side parallel for stitching steel pipe 17 sets H profile steel 16, and H profile steel 16 connects bind steel plate 15 and pedestal 26, and the bottom of H profile steel 16 is by two
The fixation triangular in shape of root channel-section steel 18, the bottom that channel-section steel 18 is embedded in pedestal 26 is welded with anchor plate 21, and base is exposed in the bottom of H profile steel 16
The part of horizontal of seat 26 sets and is welded with steel plate 19, and the part of horizontal that the bottom of H profile steel 16 is embedded in pedestal 26 is provided with welded steel fabric
The lower horizontal of piece 20, H profile steel 16 and hot rolled seamless steel tube 17 is welded with steel plate welding back cover 22.
Laterally strengthen the nylon rope of polyamide fibre 600 that rope 5 is Φ 20, the nylon of polyamide fibre 1000 that the longitudinally reinforced rope 6 is Φ 20
Rope.
Pedestal 26 is disposed with concrete block 10, cemented rock layer 11 and blotter 12 from top to bottom, and the concrete block 10 is set
The centre position in the upper surface of pedestal 26 is put, for fixing bottom hook 9.
More than two jackstone bands 23 are provided with pedestal 26 and under water regardless of dispersion concrete pouring 24
The present invention, which is that a kind of floatation type Double-layer flexible is netted, to be blocked dirt and disappears unrestrained ecological grid device, and blocking the dirt unrestrained ecological grid 4 that disappear has three
Plant model：
（1）The wave that disappears block dirty ecological grid 4 topmost three layers or four layers be that dirty ecology grid are blocked using the upstream face wave that disappears（Thick 80mm）+
Sandwich material（2mm）+ back side the wave that disappears blocks dirty ecological grid (thick 20mm), corresponding product model：RD-WBJ, size：300×500
×102mm。
（2）Dirty ecological grid block using the upstream face wave that disappears in remaining lower floor（Thick 80mm）+ back side disappears, and to block dirty ecological grid (thick for wave
20mm), corresponding product model：RD-WB, size：300×500×100mm.
（3）Orlop blocks dirty ecological grid using the upstream face wave that disappears（Thick 80mm）+ back side disappears, and to block dirty ecological grid (thick for wave
20mm), model：RD-WZ, size：150×500×100mm.
Buoy ball 1 is floated all the time in water surface, when water level is raised, and blocks the dirty unrestrained ecological grid 4 that disappear in the buoyancy of buoy ball 1
It is straightened under effect, when the water level descends, blocks the dirt unrestrained ecological grid 4 that disappear and folded up from bottom to top in the presence of self gravitation,
To ensure that buoy ball 1 floats on water surface.Block the dirty side for disappearing unrestrained ecological grid 4 and pass through stainless steel ring 25 and hot rolled seamless steel tube 17
Connection, it is ensured that front and rear will not rock the position of device.
A kind of floatation type Double-layer flexible of the present invention is netted to be blocked dirt and disappears unrestrained ecological grid device, formed together it is ecological, adjustable,
The unrestrained trash block system that disappears with certain purification function, can farthest reduce pollution of estuary, and can eliminate river water wave influences,
Maintain river water body long duration relatively steady flow smooth.
Claims (1)
1. a kind of floatation type Double-layer flexible is netted to be blocked dirt and disappears unrestrained ecological grid device, it is characterised in that including buoy ball (1) and vertically
The dirt of blocking set disappears unrestrained ecological grid (4), and the disappear lower end of unrestrained ecological grid (4) of dirt of blocking links up with (9) bottom of by and is fixed on water-bed base
It is described to block dirt and disappear the lacing hole that the upper end of unrestrained ecological grid (4) passes through buoy ball (1) center on the concrete block (10) on seat (26) top
(7) be connected with the closure safety hook (2) of bottom with buoy ball (1), it is described block dirt disappear unrestrained ecological grid (4) both sides pass through it is stainless
Steel annulus (25) is connected with hot rolled seamless steel tube (17), and the seamless steel of hot rolling (17) pipe is fixed on pedestal (26), described to block
The dirt unrestrained ecological grid (4) that disappear are made up of more than two double-deck pocket type flexible nets (3), and each double-deck pocket type flexible net (3) is not by
Rust steel annulus (25) links together, and the junction of the double-deck pocket type flexible net (3), which is provided with, laterally strengthens rope (5) and longitudinal direction
Strengthen being provided with the hollow caution mound of concrete (13) of square shape at the top of rope, the hot rolled seamless steel tube (17), the concrete is empty
Heart caution mound (13) inner vertical is provided with the joint bar (14) of more than two, the bottom water downhand welding of the hollow caution mound of concrete (13)
The steel plate that binds (15) is connected to, the external side parallel of the hot rolled seamless steel tube (17) sets H profile steel (16), and the H profile steel (16) is even
The steel plate that binds (15) and pedestal (26) are connect, the bottom of the H profile steel (16) is by two channel-section steel (18) fixations triangular in shape, the groove
The bottom that steel (18) is embedded in pedestal (26) is welded with anchor plate (21), and the portion of pedestal (26) is exposed in H profile steel (16) bottom
Divide to be horizontally disposed with and be welded with steel plate (19), the part of horizontal that H profile steel (16) bottom is embedded in pedestal (26) is provided with welded reinforcement
The lower horizontal of mesh sheet (20), the H profile steel (16) and hot rolled seamless steel tube (17) is welded with steel plate welding back cover (22), described
Laterally strengthen the nylon rope of polyamide fibre 600 that rope (5) is Φ 20, the nylon rope of polyamide fibre 1000 that the longitudinally reinforced rope (6) is Φ 20, institute
State and block the disappear centre of unrestrained ecological grid (4) of dirt and be provided with sandwich material (8), the intermediate sandwich material (8) is geotextiles, the base
Seat (26) is disposed with concrete block (10), cemented rock layer (11) and blotter (12) from top to bottom, and the concrete block (10) sets
The centre position in pedestal (26) upper surface is put, (9) is linked up with for fixing bottom, is provided with the pedestal (26) more than two
Jackstone band (23) and under water regardless of dispersion concrete pouring (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510786680.9A CN105369788B (en) | 2015-11-17 | 2015-11-17 | A kind of floatation type Double-layer flexible is netted to be blocked dirt and disappears unrestrained ecological grid device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510786680.9A CN105369788B (en) | 2015-11-17 | 2015-11-17 | A kind of floatation type Double-layer flexible is netted to be blocked dirt and disappears unrestrained ecological grid device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105369788A CN105369788A (en) | 2016-03-02 |
| CN105369788B true CN105369788B (en) | 2017-11-07 |
Family
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|---|---|---|---|
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Country Status (1)
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| CN (1) | CN105369788B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109972872A (en) * | 2018-11-27 | 2019-07-05 | 定州康拓科技有限公司 | Unrestrained system is manually made with bilateral suspension protective device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107842001B (en) * | 2017-09-27 | 2023-07-25 | 水利部交通运输部国家能源局南京水利科学研究院 | Wave-eliminating and dirt-blocking net for tidal river |
| CN108040943A (en) * | 2017-12-15 | 2018-05-18 | 浙江海洋大学 | A kind of landscape dykes and dams seining cultivation device |
| CN113387448B (en) * | 2021-07-30 | 2022-09-02 | 中国水产科学研究院黑龙江水产研究所 | Ecological floating bed fixing device of lake wetland water |
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Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS569511A (en) * | 1979-07-06 | 1981-01-31 | Shinko Sangyo Kk | Underwater fence |
| JPH0953222A (en) * | 1995-08-10 | 1997-02-25 | Mitsubishi Kagaku Sanshi Kk | Pollution preventive device |
| CN2303031Y (en) * | 1997-06-25 | 1999-01-06 | 喻国良 | Floating type garbage barrier net |
| CN2518900Y (en) * | 2001-11-14 | 2002-10-30 | 高德敏 | Water wall barrier for mass of water |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109972872A (en) * | 2018-11-27 | 2019-07-05 | 定州康拓科技有限公司 | Unrestrained system is manually made with bilateral suspension protective device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105369788A (en) | 2016-03-02 |
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