Combined fish blocking barrier

Abstract

The utility model discloses a combined type fish blocking barrier which comprises a floating supporting assembly horizontally floating on the surface layer of a water body and a dynamic fish driving assembly vertically arranged in the water and used for forming a blocking face, and the dynamic fish driving assembly comprises a plurality of hanging ropes vertically hung below the floating supporting assembly at intervals. A stroboscopic light source and a bionic deterrent body are assembled on the suspension rope at intervals, and the lower end of the suspension rope is fixed to the water bottom. Through cooperation of the floating supporting assembly and the dynamic fish driving assembly, a continuous blocking face can be formed, full-section covering from the surface layer to the bottom layer is achieved, the space blocking efficiency of fish schools is remarkably improved, through light signal changes of the stroboscopic light source, the bionic deterrent body is matched, the deterrent stability and effectiveness can be enhanced, and the deterrent effect is good. And a stable fish blocking effect is kept.

Description

Technical Field

[0001] This utility model belongs to the field of ecological protection engineering technology, and in particular relates to a fish barrier. Background Technology

[0002] While dams play a vital role in water management, they also significantly obstruct the ecological pathways for fish to migrate upstream and pose a threat to the survival of downstream fish. As the main downstream route for fish, the complex mechanical structure and turbulent water flow inside the turbine channel easily cause damage to fish due to physical impacts and sudden pressure changes, even leading to mass mortality. To reduce the negative impact of turbines on aquatic life, setting up effective fish barriers at the channel inlet has become an important technical measure for protecting migratory fish.

[0003] Existing fish barriers are mostly based on the principle of fish behavior and deterrence, using external stimuli to create disturbance and guide fish to actively avoid them. For example, they use bubble curtains to generate mechanical disturbances, sound wave generators to emit specific frequency signals, or visual deterrent devices such as strobe lights to force fish to change their swimming path. Such barriers can reduce the probability of fish approaching the turbine channel.

[0004] However, existing behavioral deterrence barriers have significant limitations in practical applications. Because they are typically deployed underwater, these devices are often unable to form an effective interception surface in the upper water layers due to environmental influences, resulting in unstable deterrence effects. Furthermore, different fish species exhibit significant differences in their sensitivity to stimuli such as sound, light, and bubbles, making it difficult for a single deterrence mode to meet the obstacle avoidance needs of multiple fish species. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the deficiencies and defects mentioned in the background art above, and to provide a combined fish barrier that is less affected by the environment, has a large effective interception area, and has a good fish-blocking effect.

[0006] To solve the above-mentioned technical problems, the technical solution proposed by this utility model is as follows:

[0007] A combined fish barrier includes a floating support assembly that floats horizontally on the surface of the water and a dynamic fish deterrent assembly that is vertically deployed in the water to form a barrier surface. The dynamic fish deterrent assembly includes multiple suspension ropes that are suspended vertically below the floating support assembly at intervals. The suspension ropes are equipped with strobe light sources and biomimetic deterrents at intervals, and the lower ends of the suspension ropes are fixed to the bottom of the water.

[0008] In the aforementioned combined fish barrier, preferably, the floating support assembly includes a first horizontal connecting rope and multiple first floats, with the multiple first floats spaced apart on the first horizontal connecting rope. Connecting the multiple first floats together via the first horizontal connecting rope forms an integrated floating structure, effectively distributing the weight of the entire floating support assembly. Furthermore, the combined action of the multiple floats makes the floating support assembly more stable on the water surface, providing a stable support foundation for the suspended dynamic fish-repelling assembly.

[0009] In the aforementioned combined fish barrier, preferably, both ends of the first horizontal connecting rope are anchored to fixed piles on both sides of the river channel. Anchoring the two ends of the first horizontal connecting rope to the fixed piles on both sides of the river channel forms a stable support structure. This fixing method can effectively resist the impact of water flow and prevent the floating support components from undergoing significant displacement or entanglement during use, thereby providing a stable and reliable interception surface for the entire combined fish barrier.

[0010] In the aforementioned combined fish barrier, preferably, the dynamic fish-repelling component further includes multiple groups of floats spaced apart along the suspension rope. Each float group includes a second horizontal connecting rope and multiple second floats, with the multiple second floats spaced apart on the second horizontal connecting rope. The float groups are horizontally arranged at intervals along the suspension rope to form multiple layers, creating a mesh-like structure that further ensures the integrity and stability of the barrier surface.

[0011] In the aforementioned combined fish barrier, preferably, the lower end of the suspension rope is fixed to the bottom of the water by a sinker block. The weight of the sinker block should be sufficiently large to overcome the effects of external forces such as water flow and buoyancy, and remain stable on the bottom. When installing the combined fish barrier, the use of sinkers simplifies the fixing of the suspension rope. Simply connect the sinker block to the lower end of the suspension rope and place it in the water; the suspension rope will naturally sag and remain vertical under the weight of the sinker block, eliminating the need for complex tensioning devices or additional fixing measures. This significantly reduces installation difficulty and workload, and improves installation efficiency. The sinker block also provides convenience when maintaining, repairing, or replacing parts of the dynamic fish-repelling components. Maintenance personnel can easily lift the suspension rope from the water, and it also facilitates the inspection and adjustment of various parts of the device to ensure it is in good working order.

[0012] In the aforementioned combined fish-blocking barrier, preferably, the stroboscopic light source is directed directly towards the fish-blocking direction. This orientation makes the light stimulation more targeted and deterrent, making fish more likely to flee when faced with such direct light stimulation. Furthermore, the light energy is more concentrated on the area where fish need to be driven away, rather than scattering in all directions. When the stroboscopic light source is directly facing the fish-blocking direction, the light signal's propagation path in the water is relatively fixed and shortest, reducing attenuation and scattering during propagation and ensuring that fish receive sufficient light stimulation. In contrast, if the stroboscopic light source is not directed correctly, the light signal may be affected by more water absorption and scattering during propagation, leading to weakened light intensity and reduced fish-repelling effect.

[0013] In the aforementioned combined fish-blocking barrier, preferably, the biomimetic deterrent is a model of a ferocious fish that swings with the suspension rope. For many fish species, ferocious fish are one of their main threats in the natural environment. When the biomimetic deterrent swings with the suspension rope, its shape and movement are extremely similar to the behavior of real ferocious fish swimming and hunting in the water. In particular, the force exerted by the water flow on the ferocious fish model changes with the water flow speed, making the swinging of the ferocious fish model more natural and varied, similar to the swimming posture of real fish in the water. This can induce a strong fear response in fish, prompting them to quickly move away from the fish-blocking barrier, thereby significantly improving the fish-repelling effect. Furthermore, this design achieves its fish-repelling function without affecting the aquatic environment, thus better protecting the aquatic environment and meeting the requirements of modern environmental protection concepts and sustainable development.

[0014] Preferably, the aforementioned combined fish barrier also includes an aeration duct arranged along the direction of the floating support component. The aeration duct is positioned on the bottom below the floating support component via spaced-apart counterweight bases, and its aeration direction is vertically upward. This vertically upward aeration creates a bubble curtain in the water, which acts as a physical barrier, working in conjunction with the blocking surface formed by the dynamic fish-repelling component to further hinder fish movement and passage. When fish attempt to pass through the bubble curtain, the water flow disturbance, sound, and visual interference generated by the bubbles cause them discomfort or fright, thus enhancing the fish barrier's blocking effect. Furthermore, the bubble curtain generated by the aeration duct causes changes in water flow. As the bubbles rise in the water, they disturb the surrounding current, which in turn pushes the second float and causes the biomimetic deterrent to oscillate, more realistically simulating the dynamics of ferocious fish and improving the fish-repelling effect.

[0015] In the aforementioned combined fish barrier, preferably, the counterweight base is equipped with a sound-emitting device. This device can emit sounds of specific frequencies and intensities, alerting and alarming fish, prompting them to move away from the barrier. Simultaneously, it combines with other fish-repelling methods such as strobe lights, biomimetic deterrents, and bubble curtains to create multi-sensory stimulation, encompassing visual, psychological, physical, and auditory aspects, thus more comprehensively covering the fish's sensory system and improving the reliability and success rate of the fish-repelling effect.

[0016] Compared with the prior art, the advantages of this utility model are:

[0017] This invention, through the combination of a floating support component and a dynamic fish-repelling component, can form a continuous blocking surface, achieving full cross-sectional coverage from the surface to the bottom layer, significantly improving the spatial interception efficiency of fish schools. By changing the light signal of the stroboscopic light source, and in conjunction with the biomimetic deterrent body, the stability and effectiveness of the deterrent can be enhanced, maintaining a stable fish-blocking effect. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the combined fish barrier structure in Example 1;

[0020] Figure 2 This is a schematic diagram of the combined fish barrier structure in Example 2.

[0021] Legend

[0022] 1. Floating support assembly; 11. First horizontal connecting rope; 12. First float; 2. Dynamic fish deterrent assembly; 21. Suspension rope; 22. Stroboscope source; 23. Bionic deterrent body; 24. Second horizontal connecting rope; 25. Second float; 26. Sinking block; 3. Aeration duct; 4. Counterweight base; 5. Sound generating device. Detailed Implementation

[0023] To facilitate understanding of this utility model, it will be described more comprehensively and in detail below with reference to the accompanying drawings and preferred embodiments. However, the scope of protection of this utility model is not limited to the following specific embodiments.

[0024] It should be noted that when a component is described as being "fixed to, attached to, connected to or connected to" another component, it can be directly fixed to, attached to, connected to or connected to the other component, or it can be indirectly fixed to, attached to, connected to or connected to the other component through other intermediate connectors.

[0025] Unless otherwise defined, all technical terms used herein have the same meaning as commonly understood by those skilled in the art. The technical terms used herein are for the purpose of describing particular embodiments only and are not intended to limit the scope of protection of this invention.

[0026] Unless otherwise specified, all raw materials, reagents, instruments and equipment used in this invention can be purchased from the market or prepared by existing methods.

[0027] Example 1:

[0028] like Figure 1 As shown, the combined fish barrier of this embodiment includes a floating support component 1 that floats horizontally on the surface of the water and a dynamic fish-repelling component 2 that is vertically arranged in the water to form a barrier surface. The dynamic fish-repelling component 2 includes multiple suspension ropes 21 that are vertically suspended below the floating support component 1 at intervals. A strobe light source 22 and a biomimetic deterrent 23 are installed on the suspension ropes 21 at intervals. The lower end of the suspension ropes 21 is fixed to the bottom of the water.

[0029] In this embodiment, the floating support assembly 1 includes a first horizontal connecting rope 11 and a plurality of first floats 12, with the plurality of first floats 12 spaced apart on the first horizontal connecting rope 11.

[0030] In this embodiment, the two ends of the first horizontal connecting rope 11 are respectively anchored to fixed piles on both sides of the river channel.

[0031] In this embodiment, the lower end of the suspension rope 21 is fixed to the bottom of the water by a sinker block 26.

[0032] In this embodiment, the stroboscopic light source 22 is directed towards the direction of the fish block.

[0033] In this embodiment, the biomimetic deterrent 23 is a ferocious fish model that can swing with the suspension rope 21.

[0034] In this embodiment, an aeration conduit 3 is also included, which is arranged along the direction of the floating support assembly 1. The aeration conduit 3 is located on the bottom of the floating support assembly 1 through counterweight bases 4 arranged at intervals, and its aeration direction is vertically upward. A sinker 26 can be locked below the aeration conduit 3 to increase the stability of the sinker 26 in the water.

[0035] In this embodiment, a sound-generating device 5 is provided on the counterweight base 4.

[0036] Example 2:

[0037] like Figure 2 As shown, the combined fish barrier in this embodiment is basically the same as that in embodiment 1, except that the dynamic fish-driving component 2 also includes multiple float groups arranged at intervals along the suspension rope 21. The float group includes a second horizontal connecting rope 24 and multiple second floats 25, which are arranged at intervals on the second horizontal connecting rope 24.

[0038] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A combined fish barrier, characterized in that, It includes a floating support assembly (1) that floats horizontally on the surface of the water and a dynamic fish-repelling assembly (2) that is vertically arranged in the water to form a barrier surface. The dynamic fish-repelling assembly (2) includes multiple suspension ropes (21) that are vertically suspended at intervals below the floating support assembly (1). The suspension ropes (21) are equipped with strobe light sources (22) and biomimetic deterrent bodies (23) at intervals. The lower end of the suspension ropes (21) is fixed to the bottom of the water.

2. The combined fish barrier according to claim 1, characterized in that, The floating support assembly (1) includes a first horizontal connecting rope (11) and a plurality of first floats (12), with the plurality of first floats (12) spaced apart on the first horizontal connecting rope (11).

3. The combined fish barrier according to claim 2, characterized in that, The two ends of the first horizontal connecting rope (11) are respectively anchored to fixed piles on both sides of the river channel.

4. The combined fish barrier according to claim 1, characterized in that, The dynamic fish-driving assembly (2) also includes multiple float groups spaced apart along the suspension rope (21). The float groups include a second horizontal connecting rope (24) and multiple second floats (25), with the multiple second floats (25) spaced apart on the second horizontal connecting rope (24).

5. The combined fish barrier according to claim 1, characterized in that, The lower end of the suspension rope (21) is fixed to the bottom of the water by a sinker (26).

6. The combined fish barrier according to claim 1, characterized in that, The strobe light source (22) is directed towards the direction of the fish block.

7. The combined fish barrier according to claim 1, characterized in that, The biomimetic deterrent (23) is a model of a ferocious fish that can swing with the suspension rope (21).

8. The combined fish barrier according to any one of claims 1-7, characterized in that, It also includes an aeration pipe (3) arranged along the direction of the floating support assembly (1). The aeration pipe (3) is located on the bottom of the water below the floating support assembly (1) through a counterweight base (4) arranged at intervals, and its aeration direction is vertically upward.

9. The combined fish barrier according to claim 8, characterized in that, The counterweight base (4) is equipped with a sound-generating device (5).

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