CN203369224U - Artificial spawning site for fishes - Google Patents
Artificial spawning site for fishes Download PDFInfo
- Publication number
- CN203369224U CN203369224U CN201320259244.2U CN201320259244U CN203369224U CN 203369224 U CN203369224 U CN 203369224U CN 201320259244 U CN201320259244 U CN 201320259244U CN 203369224 U CN203369224 U CN 203369224U
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- CN
- China
- Prior art keywords
- retractable baffle
- baffle frame
- support
- frame
- artificial fish
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- 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 - Lifetime
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- 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
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
Abstract
The utility model relates to an artificial spawning site for fishes, which comprises a first collapsible baffle plate bracket, a second collapsible baffle plate bracket, a first support, a second support and fillings. The first collapsible baffle plate bracket is arranged in the river way of a to-be-built artificial spawning site for fishes and is fixed to a river bank through the first support. The second collapsible baffle plate bracket is arranged at the downstream side of the first collapsible baffle plate bracket and is also fixed to the river bank through the second support. The fillings are arranged between the first collapsible baffle plate bracket and the second collapsible baffle plate bracket. According to the technical scheme of the utility model, the degradation or even disappearance of the spawning site for fishes caused by the human development and movement can be effectively avoided. Therefore, the artificial spawning site for fishes is higher in economic value for the fishery production and plays a significant role in protecting the river ecology. Meanwhile, the artificial spawning site for fishes effectively slows down the adverse influence of the clear-water discharging of a dam on a river way at the downstream side of the dam, thus being higher in social significance.
Description
Technical field
The utility model relates to the river construction field, particularly a kind of artificial fish spawning ground.
Background technology
Usually, fish, at spawning season, can select zone, specific river course to lay eggs usually, and these zones just are called the fish spawning ground.The fish spawning ground is one of Habitat for Fish " three " (spawning ground, feeding ground and wintering ground), is also one of most important physical environment factor of fish.
Fish lay eggs and usually are divided into three kinds: drift gamogenetic egg, sticky demersal egg and viscid egg.The proportion of drift gamogenetic egg is slightly heavier than water, under the certain flow rate condition, can drift about in the water and imbibition, after certain hour, develops into fry.Natural drift gamogenetic egg fish spawning ground is usually located at the river course acute variation, fluidised form disorder, the zone that flow velocity is higher.
In recent years along with the carrying out of China's hydroelectric development and river training works, the landform in river course changes, Mesichthyes spawning ground, river course is subject to destruction in various degree, and the deficiency in spawning ground and well damage have affected the fish effect of laying eggs, unfavorable to the stock of fish and river aquatic ecosystem.
In sum, thereby change when the fish spawning ground is damaged in the natural river course landform, a kind of lay eggs not enough problem but also can simultaneously as far as possible reduce the fish spawning place that shipping exerts an influence to river course of fish that not only can solve is provided, becomes those skilled in the art's problem demanding prompt solution.
The information that is disclosed in this utility model background technology part only is intended to deepen the understanding to general background technology of the present utility model, and should not be regarded as admitting or imply that in any form this information structure has been prior art known in those skilled in the art.
The utility model content
The technical problems to be solved in the utility model is: thus in the natural river course landform, change when the fish spawning ground is damaged, a kind of lay eggs not enough problem but also can simultaneously as far as possible reduce the fish spawning place that shipping exerts an influence to river course of fish that not only can solve is provided.
In order to address the above problem, the utility model provides a kind of artificial fish spawning ground.Described artificial fish spawning ground is the water-retaining structure be arranged in river course, comprising: the first retractable baffle frame, the second retractable baffle frame, the first support and the second support and inserts;
Described the first retractable baffle is set up and is placed in the river course that is used to form artificial fish spawning ground, and an end of this first retractable baffle frame is fixed in a side on bank, river course by the first support;
Described the second retractable baffle frame is arranged at the downstream of described the first baffle plate apart from described the first baffle plate certain distance, an end of this second retractable baffle frame is fixed in a described side on bank, river course by the second support;
Described inserts is between described the first retractable baffle frame and the second retractable baffle frame.
Preferably, described the first retractable baffle frame, the second retractable baffle frame are by network structure that can be flexible with can flexible frame structure form.
Preferably, described network structure is arranged in order and is formed by connecting by many groups chi structure, and each group chi structure is two strip structure that intersect, and is connected to form with the on-fixed form in each crosspoint; Each tie point between two groups of chi structures is connected to form with the on-fixed form.
Preferably, described frame structure consists of flexible strand strand structure.
Preferably, described frame structure laterally runs through network structure, forms the mesh of a plurality of shapes triangular in shape, and when network structure and frame structure are launched simultaneously fully, every edge lengths of triangle mesh all is no more than 10cm.
Preferably, described the first retractable baffle frame, the second retractable baffle frame, the first support and the second support are all used stainless steel to make.
Preferably, between described the first retractable baffle frame and the first support for being fixedly connected with; Between described the second retractable baffle frame and the second support for being fixedly connected with
Preferably, described the first retractable baffle frame is parallel to each other with the second retractable baffle frame and is vertical with riverbank respectively.
Alternatively, along the river the bank direction for axially at the riverbank opposite side, another described water-retaining structure being set symmetrically.
Preferably, described inserts is sandstone; Described sandstone is positioned in basket.
The beneficial effects of the utility model are:
1, effectively avoid the phenomenon of due to human development and movable fish spawning ground of bringing, degenerating and even disappearing, for fish production, can produce higher economic worth, significant to the protection of river Ecology.
2, effectively slow down under the dam clear water and let out the adverse effect to the downstream river course landform, there is higher social effect.
The accompanying drawing explanation
Fig. 1 is the floor map according to artificial fish of the present utility model spawning ground.
Fig. 2 is the structural representation according to the first retractable baffle frame in artificial fish of the present utility model spawning ground.
Fig. 3 is according to cancellated schematic diagram in artificial fish of the present utility model spawning ground.
Fig. 4 is the schematic diagram according to artificial fish of the present utility model spawning ground middle frame structure.
Fig. 5 is the schematic diagram according to two water-retaining structures in artificial fish of the present utility model spawning ground.
The critical piece symbol description:
The A baffle area
The B rapids zone
The C turbulent region
The D profundal zone
The E backwater zone
The F inserts
1 first retractable baffle frame
1a the first support
2 second retractable baffle framves
2a the second support
3 network structures
The left steel bar of 3a
The right steel bar of 3b
4 frame structures
The upper cable wire of 4a
Cable wire in 4b
Cable wire under 4c
The left cable wire of 4d
The 4e right tightwire
5 meshes
The M1 infall
M2 upper extreme point junction
M3 lower extreme point junction
Angle between two steel bars of α infall
Angle between the steel bar of two of β junctions.
Embodiment
A lot of details have been set forth in the following description so that fully understand the utility model.But the utility model can be implemented much to be different from alternate manner described here, those skilled in the art can be in the situation that do similar popularization without prejudice to the utility model intension, so the utility model is not subject to the restriction of following public specific embodiment.
Below, by reference to the accompanying drawings a specific embodiment of the present utility model is described.Refer to shown in Fig. 1, the utility model provides a kind of artificial fish spawning ground structure, described artificial fish spawning ground is the water-retaining structure be arranged in river course, mainly the first retractable baffle frame 1, the second retractable baffle frame 2, the first support 1a and the second support 2a, consists of.
Refer to shown in Fig. 2, described the first retractable baffle frame 1 and the second retractable baffle frame 2 include can be flexible network structure 3 and frame structure 4 that can be flexible.
Described the first retractable baffle frame 1 is arranged in the river course that is used to form artificial fish spawning ground, and an end of this first retractable baffle frame 1 is fixed in bank by the first support 1a; Described the second retractable baffle is set up the downstream that is placed in described the first retractable baffle frame 1, and an end of this second retractable baffle frame 2 is fixed in bank by the second support 2a.
The first retractable baffle frame 1 with the first support 1a for being fixedly connected with; The second retractable baffle frame 2 with the second support 2a also for being fixedly connected with.This first retractable baffle frame 1 preferably is parallel to each other with the second retractable baffle frame 2 and is preferably vertical with riverbank.When the first retractable baffle frame 1 and the first support 1a or the second retractable baffle frame 2 and the second support 2a are that on-fixed is while being connected, angle between the first retractable baffle frame 1 and the second retractable baffle frame 2 can correspondingly be adjusted, no longer parallel and open at an angle or draw in, and it is not vertical with riverbank that two baffle plate framves also can be adjusted to, and forms any suitable on-right angle angle with riverbank respectively.
Described the first retractable baffle frame 1, the second retractable baffle frame 2, the first support 1a and the second support 2a are all used stainless steel to make, and this kind of material makes the utility model be more suitable for using in the rivers environment for a long time, is not easy to get rusty, corrosion-resistant; Lightweight, be convenient to install, unload or move; Intensity is high, and anti-current-rush is not easily damaged; Environmental protection, be placed in water body environment to not impact of ecotope.Also can adopt the other materials with similar characteristics to make.
Described inserts F is between the first retractable baffle frame 1 and the second retractable baffle frame 2.Inserts F selects sandstone, also can select concrete block or cement brick.Inserts is contained in basket, during filling, directly basket is sling and is installed between the first retractable baffle frame 1 and the second retractable baffle frame 2, during taking-up, directly basket is hung between the first retractable baffle frame 1 and the second retractable baffle frame 2.
Below the structure of the first retractable baffle frame 1 is described in detail, as shown in Figure 2, the first retractable baffle frame 1 consists of with frame structure 4 that can be flexible network structure 3 that can be flexible.
Further, as shown in Figure 3, network structure 3 is connected successively and is formed by many groups chi structure, each group chi structure comprises two cross one another elongated stainless steel strips, two stainless steel strips are respectively left steel bar 3a and right steel bar 3b, its infall M1 connects with the on-fixed form, thereby changes and make two steel bars form the state that opens or draw in by the angle [alpha] between two steel bars of External Force Acting infall.
The upper extreme point of right steel bar 3b in each group chi structure is connected with the on-fixed form with the junction M2 of the adjacent upper extreme point away from the left steel bar 3a in one group of chi structure on riverbank; The lower extreme point of right steel bar 3b in each group chi structure is connected with the on-fixed form with the adjacent lower extreme point junction M3 by the left steel bar 3a in riverain one group of chi structure, thereby changes and make two steel bars form the state that opens or draw in by the angle beta between the steel bar of two of External Force Acting junctions.
Particularly, when network structure 3 under tensions, do the used time, angle [alpha] and angle beta increase simultaneously, and network structure 3 is in extended configuration; When network structure 3 is subject to thrust, angle [alpha] and angle beta reduce simultaneously, and network structure 3 is in rounding state.
Further, as shown in Figure 4, frame structure 4 consists of the stainless steel rope of four flexibilities, in order to support and to connect network structure, thereby forms the structure that can stop sandstone, can adjust self structure along with cancellated stretching, extension or gathering again simultaneously.The top of network structure 3, below are respectively arranged with cable wire 4a and lower cable wire 4c, the centre of network structure 3 is provided with middle cable wire 4b and is horizontally through, the riverain side of leaning on of network structure 3 is provided with left cable wire 4d, and the side away from riverbank of network structure 3 is provided with right tightwire 4e.
Upper cable wire 4a is connected with fixed form with the junction M2 that each is positioned at network structure 3 tops, and the part of cable wire 4a between every two adjacent junctions is pliable and tough, and alteration of form can occur under external force; The junction M3 that lower cable wire 4c and each are positioned at network structure 3 belows is fixedly linked, and the part of lower cable wire 4c between every two adjacent junctions is pliable and tough, and alteration of form can occur under external force; The infall M1 that middle cable wire 4b and each are positioned in the middle of network structure 3 is fixedly linked, and the part of middle cable wire 4b between every two adjacent intersections is pliable and tough, can be by being subject to external force generation alteration of form; Left cable wire 4d links together the nearly riverbank Duan Duan of the nearly riverbank end of upper cable wire 4a and lower cable wire 4c, right tightwire 4e links together the riverbank Duan Duan far away of the riverbank far away end of upper cable wire 4a and lower cable wire 4c, the cable wire integral body of the left and right sides is pliable and tough, can be by being subject to external force generation alteration of form.
When network structure 3 stretches, flexible cable 4a, 4b and 4c also stretch thereupon, flexible cable 4d and 4e draw in thereupon, when network structure 3 has arrived the maximum extension shape, flexible cable 4a, 4b and 4c are in complete straight configuration, and the maximum extension length of flexible cable 4a, 4b and 4c is identical with the maximum extension length of network structure 3; When network structure 3 draws in, three flexible cable 4a, 4b and 4c also draw in thereupon, and cable wire 4d and 4e stretch thereupon, and when network structure 3 has arrived minimum rounding state, cable wire 4a, 4b and 4c are in complete relaxation state.
Network structure and frame structure according to the make shown in Fig. 4 formed a plurality of mesh 5. meshes 5 take middle cable wire 4b as axle interception be two rows, formed the structure that stops sandstone, when the height of the first retractable baffle frame 1 need to increase according to actual natural conditions, also can be using the structure shown in Fig. 4 as a unit module, and along the direction perpendicular to ground, this module is repeated to build connection successively, to form many row's meshes, thereby increase the height of baffle plate; The gravel size of filling is usually more than 10cm, therefore, when described network structure 3 and frame structure 4 are launched simultaneously fully, preferably, every edge lengths of mesh 5 all is no more than 10cm, can well sandstone be retained in like this between two baffle plate framves and not be washed away by the river.
The structure of the structure of the second retractable baffle frame 2 and above-mentioned the first retractable baffle frame 1 is identical.
Fish, lay eggs period, as shown in Figure 1, described the first retractable baffle frame 1 and the second retractable baffle frame 2 be take respectively the first support 1a and the second support 2a and are stretched over the position in the middle of river course to the river course direction as fixed axis simultaneously, zone between the first retractable baffle frame 1 and the second retractable baffle frame 2 is used sandstone F to fill, structure according to above-mentioned mesh 5, this sandstone F can be restricted between two baffle plate framves, by current, do not washed away and can stop current, make in this way in river course by formation baffle area, the zone A of the first retractable baffle frame 1 and the second retractable baffle frame 2 obstructs, formation rapids zone, the zone B do not intercepted by the first retractable baffle frame 1 and the second retractable baffle frame 2 in river course.
Due to the barrier effect of sandstone F, baffle area A physical features, higher than rapids zone B, forms the physical features structure of local sudden change in river course.This structure can make in the B of rapids zone and form the larger torrent of flow velocity, be thereby that baffle area A intercepts current to make most of current flow through from rapids zone B, the cross-sectional area that current flow through reduces to make flow velocity to increase, produce complicated fluidised form simultaneously, thereby form spawning ground and the needed flow field condition of the fish that produce the drift gamogenetic egg, thereby can provide enough stimulations to promote Gunther parent fish spawning to producing floating gamogenetic egg parent population, and be conducive to fish-egg mixing diffusion.B downstream, rapids zone is turbulent region C, after fish-egg is discharged, under swiftly flowing river effect, flows into turbulent region, and this zone fluidised form disorder is conducive to fish-egg and mixes and disseminate, thereby is conducive to the fertilization of fish-egg.
A side at the first retractable baffle frame 1 near section upstream, river and simultaneously close the first support 1a bank, form the profundal zone D that flow velocity is less than rapids zone B, a side at the second retractable baffle frame 2 near section downstream, river, form the backwater zone E that flow velocity is less than rapids zone B, in two zones, the water flows gently, the large flow velocity of the depth of water is little, and enough habitats can be provided for the parent population that is about to lay eggs.
Non-fish, lay eggs period, described the first retractable baffle frame 1 and the second retractable baffle frame 2 be take respectively the first support 1a and the second support 2a and are retracted to bank as fixed axis, do not have sandstone to fill, the physical features structure of local sudden change disappears, river course recovers unimpeded state, can not cause obvious impact to shipping.
The first retractable baffle frame 1, the second retractable baffle frame 2, the first support 1a and the second support 2a in above-mentioned first embodiment have formed a described water-retaining structure, when river course is wider, only use a water-retaining structure can not form well needed physical features water environment.
In another embodiment of the present utility model, as shown in Figure 5, along the river the bank direction is for axially arranging symmetrically identical second described water-retaining structure at the riverbank opposite side, by this symmetrical structure, form rapids zone B between two water-retaining structures, the width of rapids zone B is determined jointly by actual river width and two extensile maximum lengths of water-retaining structure, can obtain by regulating two extensile maximum lengths of water-retaining structure the B zone, rapids zone of one fixed width.Each baffle plate frame in two baffle device for water side by side stretches or draws in, and the description in all the other structures, function and occupation mode and first embodiment is identical.
Above-described embodiment is for illustrative principle of the present utility model and effect thereof, but the utility model is not limited to above-mentioned embodiment.Those skilled in the art all can, under spirit of the present utility model and category, in the claim protection domain, modify to above-described embodiment.Therefore protection domain of the present utility model, should cover as claims of the present utility model.
Claims (10)
1. an artificial fish spawning ground, is characterized in that, described artificial fish spawning ground is the water-retaining structure be arranged in river course, comprising: the first retractable baffle frame, the second retractable baffle frame, the first support and the second support and inserts;
Described the first retractable baffle is set up and is placed in the river course that is used to form artificial fish spawning ground, and an end of this first retractable baffle frame is fixed in a side on bank, river course by the first support;
Described the second retractable baffle frame is arranged at the downstream of described the first retractable baffle frame apart from described the first baffle plate certain distance, an end of this second retractable baffle frame is fixed in a described side on bank, river course by the second support;
Described inserts is between described the first retractable baffle frame and the second retractable baffle frame.
2. artificial fish according to claim 1 spawning ground, is characterized in that, described the first retractable baffle frame, the second retractable baffle frame are by network structure that can be flexible and can flexible frame structure form.
3. artificial fish according to claim 2 spawning ground, it is characterized in that, described network structure is arranged in order and is formed by connecting by many groups chi structure, and each group chi structure is two strip structure that intersect, and is connected to form with the on-fixed form in each crosspoint; Each tie point between two groups of chi structures is connected to form with the on-fixed form.
4. want 3 described artificial fish spawning grounds according to right, it is characterized in that, described frame structure consists of flexible strand strand structure.
5. artificial fish according to claim 4 spawning ground, it is characterized in that, described frame structure laterally runs through network structure, forms the mesh of a plurality of shapes triangular in shape, when network structure and frame structure are launched simultaneously fully, every edge lengths of triangle mesh all is no more than 10cm.
6. artificial fish according to claim 5 spawning ground, is characterized in that, described the first retractable baffle frame, the second retractable baffle frame, the first support and the second support are all used stainless steel to make.
7. artificial fish according to claim 6 spawning ground, is characterized in that, between described the first retractable baffle frame and the first support for being fixedly connected with; Between described the second retractable baffle frame and the second support for being fixedly connected with.
8. artificial fish according to claim 7 spawning ground, is characterized in that, described the first retractable baffle frame is parallel to each other with the second retractable baffle frame and is vertical with riverbank respectively.
9. artificial fish according to claim 8 spawning ground, is characterized in that, the bank direction is for axially arranging symmetrically another described water-retaining structure at the riverbank opposite side along the river.
10. artificial fish spawning ground according to claim 8 or claim 9, is characterized in that, described inserts is sandstone; Described sandstone is positioned in basket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320259244.2U CN203369224U (en) | 2013-05-14 | 2013-05-14 | Artificial spawning site for fishes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320259244.2U CN203369224U (en) | 2013-05-14 | 2013-05-14 | Artificial spawning site for fishes |
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| Publication Number | Publication Date |
|---|---|
| CN203369224U true CN203369224U (en) | 2014-01-01 |
Family
ID=49831790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320259244.2U Expired - Lifetime CN203369224U (en) | 2013-05-14 | 2013-05-14 | Artificial spawning site for fishes |
Country Status (1)
| Country | Link |
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| CN (1) | CN203369224U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107702883A (en) * | 2017-08-18 | 2018-02-16 | 水利部交通运输部国家能源局南京水利科学研究院 | The complex flowfield realization device and method of a kind of aquatile ecology hydraulic experiment |
| CN110663597A (en) * | 2019-10-12 | 2020-01-10 | 长江水利委员会长江科学院 | Site selection and construction method for muddy artificial spawning site of schizothorax prenanti in plateau river |
-
2013
- 2013-05-14 CN CN201320259244.2U patent/CN203369224U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107702883A (en) * | 2017-08-18 | 2018-02-16 | 水利部交通运输部国家能源局南京水利科学研究院 | The complex flowfield realization device and method of a kind of aquatile ecology hydraulic experiment |
| CN107702883B (en) * | 2017-08-18 | 2019-07-02 | 水利部交通运输部国家能源局南京水利科学研究院 | A kind of the complex flowfield realization device and method of aquatile ecology hydraulic experiment |
| CN110663597A (en) * | 2019-10-12 | 2020-01-10 | 长江水利委员会长江科学院 | Site selection and construction method for muddy artificial spawning site of schizothorax prenanti in plateau river |
| CN110663597B (en) * | 2019-10-12 | 2021-04-23 | 长江水利委员会长江科学院 | Site selection and construction method for muddy artificial spawning site of schizothorax prenanti in plateau river |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140101 |