Fish collecting and luring device for hydropower station

Abstract

The invention relates to the technical field of fishing and discloses a hydropower station fish collecting and luring device which comprises a supporting frame, a fish blocking net and a bait casting device, the fish blocking net is arranged on the supporting frame and comprises an inlet part and a tail part communicated with the inlet part, the bait casting device is arranged on the supporting frame, and the tail part is communicated with the inlet part. The fish blocking net is arranged on the supporting frame, the bait casting device can cast bait to the peripheral side or the interior of the fish blocking net, the fish luring assembly is arranged on the supporting frame or the fish blocking net, and the fish luring assembly can luring specified fishes. The device can automatically run for a long time, saves manpower, does not need to be guarded, is provided with various fish luring facilities such as sound and light, fake bait and bait, and can meet the trapping requirements of various fishes.

Description

Technical Field

[0001] This invention belongs to the field of fishing technology, specifically relating to a fish-attracting device for hydroelectric power stations. Background Technology

[0002] The purpose of installing fish-catching facilities at hydropower stations is ecological protection. This includes purposes such as catching and transferring migratory fish, ecological dredging before impounding new large reservoirs, rescue fishing for endangered fish, controlled fishing for invasive species, and monitoring fishing for fish populations. Among related technologies, some use fish-collecting boats, which are labor-intensive and cannot be used for extended periods. Others use simple traps, but these result in smaller catches, especially for invasive fish, with poor effectiveness. Therefore, maximizing the catch of invasive or target fish species and improving fishing efficiency is a pressing issue that needs to be addressed. Summary of the Invention

[0003] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, embodiments of this invention propose a fish-attracting device for hydropower stations. This device can attract and capture specific fish species through various methods such as sound and light bait, achieving high capture efficiency, and can operate automatically for extended periods, saving manpower.

[0004] The present invention relates to a fish-attracting device for hydropower stations, comprising a support frame, a fish-blocking net, a feeder, and a fish-attracting component. The fish-blocking net is mounted on the support frame and includes an inlet and a tail portion communicating with the inlet. The feeder is mounted on the support frame and can feed bait onto the outer periphery or inside of the fish-blocking net. The fish-attracting component is mounted on the support frame or the fish-blocking net and can attract specific fish species.

[0005] The fish-attracting device for hydroelectric power stations of the present invention can be placed in designated waters and operate for extended periods. Through its fish-attracting components, it lures and traps various types of fish within a fish-blocking net, preventing their escape. This device fulfills purposes such as endangered fish rescue, invasive fish control, and fish detection.

[0006] Optionally, the cross-sectional area of ​​the inlet gradually decreases in the direction toward the tail, and the interior of the tail is provided with multiple barbs.

[0007] Optionally, the barbel has an open side and a constricted side, the open side being connected to the inner wall of the tail, allowing fish to enter unidirectionally along the open side and swim out from the constricted side.

[0008] Optionally, the fish-attracting component includes at least one of a fish-attracting light, a sonic fish-attracting device, and a lure, wherein the color of the fish-attracting light, the frequency and volume of the sonic fish-attracting device, and the shape of the lure are set differently for different fish species.

[0009] Optionally, the artificial lure is disposed on the inner wall surface of the inlet, the sonic fish attractor is disposed on the outer wall surface of the inlet, and the fish attractant light is disposed on the inner wall surface of the inlet.

[0010] Optionally, the feeder includes at least one of spray-type and pellet feed-spreading type.

[0011] Optionally, the feeder includes a hopper, the outlet of which is connected to a control component, the control component having an outlet connected to multiple distribution pipes.

[0012] Optionally, the control component includes one of a rotary valve, a knife gate valve, a ball valve, and a butterfly valve.

[0013] Optionally, a float is provided on one side of the inlet, and multiple floats are arranged at intervals. A counterweight assembly is provided on the side of the inlet opposite to the float, and multiple counterweight assemblies are arranged at intervals.

[0014] Optionally, the counterweight assembly includes a hook connected to the fish barrier net, a counterweight block connected to the hook, and a clamping bolt on the hook for fixing the counterweight block.

[0015] Optionally, the inlet portion is provided with a support rod, which is used to support the inlet portion so that the inlet portion remains open. The support rod is a telescopic structure or a folding structure.

[0016] The fish-attracting device for hydroelectric power stations of the present invention can operate automatically for extended periods and is equipped with various fish-attracting facilities such as sound and light, artificial lures, and bait to meet the needs of various fish species. It can also automatically and periodically dispense bait, saving manpower and requiring no supervision. Attached Figure Description

[0017] Figure 1 This is the right view of the present invention.

[0018] Figure 2 This is a top view of the present invention.

[0019] Figure 3 This is a top view of the fish-blocking net and fish-attracting component of the present invention.

[0020] Figure 4 This is a right view of the fish-blocking net and fish-attracting component of the present invention.

[0021] Figure 5 yes Figure 4 A magnified view of a portion of point A in the middle.

[0022] Figure label: 1. Support frame; 2. Fish barrier net; 21. Inlet; 22. Tail; 23. Barbels; 3. Feeder; 31. Feed bin; 32. Control components; 33. Feed distribution pipe; 4. Fish attractant components; 41. Fish attractant light; 42. Sonic fish attractant; 5. Float; 6. Counterweight assembly; 61. Hook; 62. Counterweight block; 63. Clamping bolt; 7. Support rod. Detailed Implementation

[0023] Embodiments of the present invention are described in detail below, with examples of the embodiments illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0024] The fish-attracting device for a hydropower station in this embodiment includes a support frame 1, a fish-blocking net 2, a feeder 3, and a fish-attracting component 4. The fish-blocking net 2 is mounted on the support frame 1 and includes an inlet 21 and a tail 22 communicating with the inlet 21. The feeder 3 is mounted on the support frame 1 and can feed the fish to the outer periphery or interior of the fish-blocking net 2. The fish-attracting component 4 is mounted on the support frame 1 or the fish-blocking net 2 and can attract specific fish species.

[0025] The fish-attracting device for hydropower stations in this embodiment is an auxiliary device for hydropower stations. The existence of hydropower stations can affect the ecological environment of fish to some extent. For example, it can disrupt the migration of migratory fish. In this case, the fish-attracting device of this embodiment can be set up in the downstream area of ​​the hydropower station to catch juvenile fish, and then transfer the fish to the upstream waters of the hydropower station. Alternatively, it can be set up upstream of the hydropower station to catch adult fish and transfer them to downstream, spawning grounds, and other places, thereby assisting the fish in completing their life cycle. In addition, this device can be used for the capture and rescue of endangered resident fish, such as schizothorax. For invasive fish, such as tilapia, it can be used for capture and control.

[0026] After placing this device in the water, see the attached document. Figure 1 and attached Figure 2 The feeder 3 can dispense bait at regular intervals and in measured quantities, and in conjunction with the fish-attracting component 4, it draws surrounding fish towards the device. As the fish eat the bait, they gradually enter the fish-blocking net 2, allowing for capture. This device requires no constant monitoring, only periodic checks, reducing manpower. Combined with the feeder 3, it can operate 24 hours a day or even longer. After fishing, the entire device can be pulled up, or the fish-blocking net 2 can be pulled up separately to remove the fish trapped inside.

[0027] In some specific embodiments, the bottom of the support frame 1 can have a pointed corner, or a weight can be tied to it with ropes to fix it in place or submerge it in the water, facilitating the capture of fish in deep water. Ropes can be tied to the top of the support frame 1 to facilitate pulling the entire device up for inspection and maintenance. The support frame 1 can also be fixed in specific areas such as sluice gates, making installation and fishing convenient. After installation, the inlet 21 of the fish barrier net 2 should face the water flow, and the feeder 3 should be positioned upstream of the inlet 21, allowing the bait to fall into the fish barrier net 2 and attract fish to swim towards it.

[0028] In some embodiments, see Appendix Figure 3 and attached Figure 4 The cross-sectional area of ​​the inlet 21 gradually decreases towards the tail 22, and the tail 22 has multiple barbels 23 inside. These barbels 23 are spaced apart. Each barbel 23 has an open side and a constricted side. The open side connects to the inner wall of the tail 22, allowing fish to pass through the barbels 23 unidirectionally from the open side to the constricted side. The barbels 23 are made of the same material as the fish-blocking net 2, and are both mesh-like, possessing a certain degree of elasticity and deformability. The shape of their openings resembles a duckbill valve, enabling unidirectional fish entry. The cross-sectional area of ​​the open side of the barbels 23 is the same as the cross-sectional area of ​​the tail 22, ensuring complete connection between the open side of the barbels 23 and the inner wall of the tail 22, preventing fish from escaping from the connection point. The cross-sectional area of ​​the constricted side of the barbels 23 is slightly smaller than the volume of the fish to be caught. Some bait can be pre-scattered inside the tail 22 to attract fish to enter, pass through the barbels 23, and become trapped inside. When the fishing operation is over, the fish with the tail end 22 are removed manually.

[0029] In some specific embodiments, the fish-blocking net 2 can be a figure-eight net or a river-blocking net. The inlet 21 has a sufficiently large cross-section, which in some scenarios can even directly cover the entire cross-section of the watershed to ensure that no fish escapes the net. The tail 22 also has a large space, which facilitates the temporary gathering of fish at the tail 22. The fish-blocking net 2 is tied to the support frame 1 with ropes around its perimeter; or the fish-blocking net 2 is hung on the support frame 1 with hooks 61 around its perimeter. Multiple ropes can also be set on the fish-blocking net 2 to assist in fixing or moving the fish-blocking net 2, or to lift the fish-blocking net 2 up separately to observe the fishing situation.

[0030] In some embodiments, the fish-attracting component 4 includes at least one of a fish-attracting light 41, a sonic fish-attractor 42, and a lure. The color of the fish-attracting light 41, the frequency and volume of the sonic fish-attractor 42, and the shape of the lure are set differently for different fish species. The lure is disposed on the inner wall of the inlet 21, the sonic fish-attractor 42 is disposed on the outer wall of the inlet 21, and the fish-attracting light 41 is disposed on the inner wall of the inlet 21. The three types of fish-attracting devices can be arranged simultaneously. Through sound, light, and lure, surrounding fish can be attracted to the device and then attracted to feed. During the feeding process, they are attracted by the bait in the fish-blocking net 2 and mistakenly enter the fish-blocking net 2, eventually crawling into the tail section 22 and being captured.

[0031] The fish-attracting light 41 is designed to utilize the phototactic differences between invasive and native fish. For example, setting it to blue light makes it easier to catch tilapia, which are more phototactic. Alternatively, setting it to green light and lowering the entire device to the bottom of the water exposes the hiding places of bottom-dwelling fish and attracts fish such as plecos to feed. For the sonic fish attractor 42, most invasive fish (such as tilapia, mosquitofish, and American catfish) are more sensitive to low-frequency vibrations. The feeding and mating sounds of invasive fish (such as the "gurgling" sound of tilapia) can be recorded and played repeatedly through the sonic fish attractor 42 to attract similar species. Alternatively, the sounds of bottom-dwelling prey (such as crustaceans and aquatic insects) can be simulated to attract omnivorous invasive fish (such as plecos). Artificial lures can be selected appropriately based on the fish's diet, such as mimicking bloodworms, corn, or wheat grains, and can be coated with a fishy-smelling attractant. By adjusting the settings of the fish-attracting component 4, you can attract and capture specific fish species to the maximum extent as needed.

[0032] In some embodiments, the feeder 3 includes at least one of spray-type and pellet feed-distributing type. For example, one type can be set alone, or both can be set simultaneously. The appropriate combination is selected based on the fish's feeding habits and the characteristics of the feed. Furthermore, when used in conjunction with existing timed and metered distributing equipment, manual feeding can be eliminated, achieving automated operation.

[0033] In some embodiments, the feeder 3 includes a feed hopper 31, with a control component 32 connected to the outlet of the feed hopper 31. The control component 32 has an outlet connected to multiple distribution pipes 33. The control component 32 includes one of a rotary valve, a gate valve, a ball valve, and a butterfly valve. Bait is placed inside the feed hopper 31 and dispensed via a valve at the bottom. The valve can be an electric valve, remotely controlled via an electric wire, or independently controlled using a battery. This allows for timed and quantitative feeding without manual scattering. A baffle can be installed on the top of the feed hopper 31 to protect it from wind and sun. Normally, the feed hopper 31 is positioned above the water surface to prevent the bait from becoming waterlogged, clumping, or scattering. Multiple distribution pipes 33 can be connected to the bottom outlet of the valve via pipes. The lower ends of the distribution pipes 33 can be placed in the water, allowing the bait to be accurately delivered inside or around the fish barrier net 2. This prevents the bait from being washed away by the water flow and attracts fish to feed.

[0034] In some embodiments, a plurality of floats 5 are provided on one side of the inlet 21, and the floats 5 are arranged at intervals. A plurality of counterweight components 6 are provided on the side of the inlet 21 opposite to the floats 5, and the counterweight components 6 are arranged at intervals. The design of the floats 5 and the counterweight components 6 allows the inlet 21 to remain open, facilitating the entry of fish into the fish barrier net 2.

[0035] In some embodiments, see Appendix Figure 5 The counterweight assembly 6 includes a hook 61 connected to the fish barrier net 2, a counterweight block 62 connected to the hook 61, and a clamping bolt 63 on the hook 61 for fixing the counterweight block 62. The number and position of the counterweight blocks can be easily and promptly adjusted by loosening or tightening the clamping bolt 63. The number of floats 5 can also be adjusted as needed, ensuring that the fish barrier net 2 remains stably positioned in the water.

[0036] In some embodiments, the inlet portion 21 is provided with a support rod 7, which supports the inlet portion 21 to keep it open. The support rod 7 is a telescopic or folding structure. For example, it can be a multi-section telescopic rod, with both ends fixed to the inlet portion; or it can be a multi-section folding rod, which can remain straight when unfolded. When not in use, the fish-blocking net 2 can be easily stored by folding or retracting the support rod 7. The support rod 7 can be arranged around the perimeter and connected end to end to form a large square frame to keep the inlet portion 21 in its most open state, thereby improving the fishing effect.

[0037] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0039] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0040] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0041] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0042] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. A fish-attracting device for hydropower stations, characterized in that, include: Support frame (1); Fish barrier net (2), the fish barrier net (2) is mounted on the support frame (1), the fish barrier net (2) includes an inlet (21) and a tail (22) communicating with the inlet (21). Feeder (3), the feeder (3) is provided on the support frame (1), the feeder (3) can throw the bait on the outer periphery or inside of the fish blocking net (2); Fish attracting component (4), which is mounted on the support frame (1) or the fish blocking net (2), can attract specific fish species.

2. The fish-attracting device for hydropower stations according to claim 1, characterized in that, The cross-sectional area of ​​the inlet (21) gradually decreases in the direction toward the tail, and the tail (22) is provided with a plurality of barbs (23).

3. The fish-attracting device for hydropower stations according to claim 2, characterized in that, The barbel (23) has an open side and a constricted side. The open side is connected to the inner wall of the tail (23). Fish can only pass through the barbel (23) unidirectionally from the open side to the constricted side.

4. The fish-attracting device for hydropower stations according to claim 1, characterized in that, The fish-attracting component (4) includes at least one of a fish-attracting light (41), a sonic fish attractor (42), and a lure. The color of the fish-attracting light (41), the frequency and volume of the sonic fish attractor (42), and the shape of the lure are set differently for different fish species.

5. The fish-attracting device for hydropower stations according to claim 4, characterized in that, The artificial bait is placed on the inner wall of the inlet (21), the sonic fish attractant (42) is placed on the outer wall of the inlet (21), and the fish attractant lamp (41) is placed on the inner wall of the inlet (21).

6. The fish-attracting device for hydropower stations according to claim 1, characterized in that, The feeder (3) includes a hopper (31), the outlet of the hopper (31) is connected to a control component (32), the control component (32) has an outlet, and the outlet is connected to multiple distribution pipes (33).

7. The fish-attracting device for hydropower stations according to claim 6, characterized in that, The control component (32) includes one of a rotary valve, a knife gate valve, a ball valve, and a butterfly valve.

8. The fish-attracting device for hydropower stations according to claim 1, characterized in that, One side of the inlet (21) is provided with a float (5), and there are multiple floats (5) arranged at intervals. On the side of the inlet (21) opposite to the floats (5), there are multiple counterweight components (6), and the multiple counterweight components (6) are arranged at intervals.

9. The fish-attracting device for hydropower stations according to claim 8, characterized in that, The counterweight assembly (6) includes a hook (61) connected to the fish barrier net (2), a counterweight block (62) connected to the hook (61), and a clamping bolt (63) provided on the hook (61) for fixing the counterweight block (62).

10. The fish-attracting device for hydropower stations according to any one of claims 1-9, characterized in that, The inlet (21) is provided with a support rod (7), which is used to support the inlet (21) so that the inlet (21) remains open. The support rod (7) is a telescopic structure or a folding structure.

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