A trap for preventing escape of fish

Abstract

The utility model discloses a kind of trapping and preventing escape fish gathering devices, including frame;Net board covers on the frame;Anti-escape net is symmetrically connected in the frame interior, the net board, anti-escape, frame net form fish gathering area and symmetrically distributed in the fish gathering area two sides fish attracting area;Fish storage hopper is equipped in the fish gathering area bottom and is connected with frame;Fish attracting lamp is all arranged in the fish attracting area, fish gathering area, and the technical scheme, fish inlet is set in the side of fish gathering area according to different height and different direction, different water layer fish can enter from different direction, fish inlet is provided with duckbill bag, and fish is prevented from escaping, expand fish gathering area and reduce the probability that fish swims out after entering isolation net, so as to improve the trapping effect of fish gathering device.

Description

Technical Field

[0001] This utility model belongs to the technical field of water conservancy and hydropower supporting equipment, specifically relating to a fish trapping and anti-escape device. Background Technology

[0002] In hydropower projects, fish are often hindered by dams, necessitating assistance to move them from the reservoir area downstream to the river section below the dam or from the river section below the dam upstream to the reservoir area above the dam, in order to maintain gene exchange and genetic diversity among fish populations. Currently, the fish transport system used to facilitate downstream movement is the fish collection and transport system. This involves using fish collection boats equipped with fish suction pumps and other fish suction devices to collect fish within the reservoir area, and then using fish transport vehicles to transport the fish downstream to release them.

[0003] The fish collection and transportation system mainly consists of fish collection and transportation boats, egg and fry collectors, fish transport vehicles, cranes, and fish transport boxes.

[0004] However, the existing technical solutions cannot guarantee the success rate of collection because the structure of the fish inlet cannot effectively block the fish being caught. The fish will swim out of the inlet, thereby reducing the range of attraction and affecting the fish collection effect. Utility Model Content

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A fish-trapping and escape-preventing device includes: frame; A wire mesh panel covers the frame. An escape-proof net is symmetrically connected inside the frame. The net, escape-proof net, and frame net form a fish-gathering area and fish-attracting areas symmetrically distributed on both sides of the fish-gathering area. A fish storage container is located at the bottom of the fish collection area and connected to the frame; Fish-attracting lights are all installed in the fish-attracting area and fish-gathering area; At least one side of the fish collection area is provided with at least one set of fish inlets, and the fish inlets are provided with duckbill bags extending toward one side of the fish collection area.

[0006] Furthermore, each of the two fish collection areas has two sets of fish inlets on its three sides, forming 12 sets of staggered duckbill bags.

[0007] Furthermore, an artificial fish-catching opening is provided at the top of the fish collection area.

[0008] Furthermore, at least one set of bait inlets is provided at the top of the fish-attracting area.

[0009] Furthermore, a ball valve is installed at the bottom of the fish storage container.

[0010] Furthermore, the top of the frame is connected to several sets of lifting lugs.

[0011] Furthermore, the escape-prevention net is set at an angle.

[0012] Furthermore, at least one of the fish-attracting area and the fish-gathering area is equipped with a camera component.

[0013] Compared with the prior art, this utility model has the following advantages: This technical solution involves setting fish inlets at different heights and in different directions on the side of the fish collection area, allowing fish from different water layers to enter from different directions. The fish inlets are equipped with duckbill bags to prevent fish from escaping, thereby expanding the fish collection area and reducing the probability of fish entering the net and then swimming out, thus improving the trapping effect of the fish collection device. By installing a detachable connecting seat at the bottom of the frame, the main body of the fish-gathering device can be fixed to the deck of the fishing boat as needed, preventing slippage during transportation. Since the connecting seat is fastened to the frame, it can be easily disassembled, facilitating the hoisting of the fish-gathering device. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram illustrating a specific embodiment of the present utility model; Figure 2 This is a schematic diagram illustrating the main structural features of a specific embodiment of the present utility model; Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure of AA; Figure 4 for Figure 2 Schematic diagram of the cross-sectional structure of BB; Figure 5 This is a cross-sectional structural diagram illustrating a specific embodiment of the present utility model; Figure 6 This is a three-dimensional structural diagram of the frame in a specific embodiment of the present invention; The reference numerals in the accompanying drawings include: Frame 1, Lifting lug 10, Connecting seat 11, H-beam 110, C-channel steel 111, Reinforcing plate 112, Mesh panel 2, Escape-proof net 3, Fish attraction area 4, Bait inlet 40, Fish inlet 41, Duckbill bag 42, Fish collection area 5, Manual fish catching inlet 50, Fish storage hopper 6, Ball valve 60, Fish attraction light 7, Camera assembly 8, Fish fry 9. Detailed Implementation

[0015] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0016] The accompanying drawings are for illustrative purposes only and represent schematic diagrams, not actual physical objects. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The same or similar reference numerals in the drawings of the embodiments of this utility model correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" appear, indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not 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, the terms describing positional relationships in the drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0017] like Figure 1 - Figure 6 As shown, the present invention provides a fish trapping and escape prevention device, which includes a frame 1, multiple mesh panels 2, an inclined multi-layer escape prevention net 3, a fish storage hopper 6, and multiple sets of fish-attracting lights 7. Among them, the mesh panel 2 covers the frame 1; The escape-proof net 3 is symmetrically connected inside the frame 1. The net plate 2, the escape-proof net, and the frame 1 form a fish gathering area 5 and a fish attraction area 4 symmetrically distributed on both sides of the fish gathering area 5. The fish storage container 6 is located at the bottom of the fish collection area 5 and is connected to the frame 1; At least one set of fish inlets 41 are provided on at least one side of the fish collection area 5, and a duckbill bag 42 extending toward one side of the fish collection area 5 is provided on the fish inlet 41.

[0018] This technical solution involves setting fish inlets 41 at different heights and directions on the side of the fish collection area 5, allowing fish from different water layers to enter from different directions. The fish inlets 41 are equipped with duckbill bags 42 to prevent fish from escaping, thereby expanding the fish collection area and reducing the probability of fish swimming out after entering the net, thus improving the trapping effect of the fish collection device.

[0019] Specifically, two sets of fish inlets 41 are provided on each of the three sides of the two fish collection areas 5, forming 12 sets of staggered duckbill bags 42.

[0020] The duckbill bag 42 is elastic. In addition, the duckbill bag 42 can also adopt a mesh belt structure that tapers inward in a conical shape.

[0021] This fish-attracting device is 3 meters long, 0.6 meters wide, and 1.3 meters high, weighing approximately 178 kg. Its main body uses a stainless steel angle steel frame 1, with the mesh panel 2 covered by a 3mm layer, reducing the overall weight of the device without affecting the fish-attracting effect. A 4-inch clamp-type ball valve 60 is installed at the bottom of the fish storage hopper 6 for connecting to the fish suction pump interface. Except for the frame 1, all other components can be disassembled or replaced. The top of the frame 1 has four lifting lugs 10 for easy installation, commissioning, and maintenance.

[0022] At least one set of bait inlets 40 is provided at the top of the fish-attracting area 4.

[0023] At least one of the fish-attracting area 4 and the fish-collecting area 5 is equipped with a camera component 8. Staff can observe the number of fish collected through the camera component 8 and then decide whether to collect and harvest them, which can improve the efficiency of fish collection and reduce the working time of fish collection boats and related equipment.

[0024] The fish-attracting lights 7 are all installed in the fish-attracting area 4 and the fish-gathering area 5. The fish-attracting lights 7 are long and narrow. Under the guidance of the fish-attracting lights 7 and bait, the fish fry 9 enter the fish-gathering cage. Under the guidance of the fish-attracting lights 7 and bait, they continue to swim forward through the underwater channel and enter the fish-gathering area 5. After a certain number of fish are gathered, they are transferred to the fish tanks on the boat. The use of lights and bait to attract fish improves the fish-gathering effect.

[0025] Fish storage container 6 is made of 3mm sheet metal and has certain functions of collecting fish and storing water.

[0026] A manual fish retrieval port 50 is provided at the top of the fish collection area 5. If the fish suction pump fails to suck out fish or other unexpected situations occur, the manual fish retrieval port at the top can be opened to retrieve the fish.

[0027] The fish-attracting light 7 and the underwater camera are all powered by the fish transport vessel. The main electrical equipment in this device operates on DC 24V and DC 48V. When supplying power to the equipment, the AC 220V power supplied by the vessel needs to be converted to meet the equipment's requirements.

[0028] like Figure 1 , Figure 6 As shown, a connecting seat 11 is connected to the lower end of frame 1 by fasteners; Specifically, the connecting seat 11 includes parallel H-beams 110 and C-channels 111 that connect the H-beams 110 to each other. The side of the H-beams 110 is provided with several sets of reinforcing plates 112 arranged along the length direction.

[0029] By installing a detachable connecting seat at the bottom of the frame, the main body of the fish-gathering device can be fixed to the deck of the fishing boat as needed, preventing slippage during transportation. Since the connecting seat is fastened to the frame, it can be easily disassembled, facilitating the hoisting of the fish-gathering device. The connecting seat adopts a structure of H-beams, C-channels, and reinforcing plates, which ensures the rigidity and stability of the connecting seat.

[0030] The above are merely embodiments of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all general technical knowledge in the field prior to the application date or priority date, are knowledgeable of all existing technologies in that field, and possess the ability to apply conventional experimental methods prior to that date. Therefore, those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in conjunction with their own capabilities. Typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent.

Claims

1. A containment fish trap device, comprising: include: Framework (1); A mesh panel (2) covers the frame (1); An escape-proof net (3) is symmetrically connected inside the frame (1). The net plate (2), the escape-proof net, and the frame (1) form a fish-gathering area (5) and fish-attracting areas (4) symmetrically distributed on both sides of the fish-gathering area (5). Fish storage container (6) is located at the bottom of the fish collection area (5) and connected to the frame (1); At least one set of fish inlets (41) are provided on at least one side of the fish collection area (5), and a duckbill bag (42) extending toward one side of the fish collection area (5) is provided on the fish inlet (41). Two sets of fish inlets (41) are provided on the three sides of the two fish collection areas (5), forming 12 sets of staggered duckbill bags (42). A connecting seat (11) is disposed at the lower end of the frame (1) and connected to it by fasteners; The connecting seat (11) includes parallel H-beams (110) and C-channels (111) that connect the H-beams (110) to each other.

2. A self-contained fish-attracting and retaining device as claimed in claim 1, characterized in that: The H-beam (110) has several sets of reinforcing plates (112) arranged along its length on its side.

3. A self-contained fish-attracting and retaining device according to claim 1 or 2, characterised in that: The top of the fish-attracting area (4) is provided with at least one set of bait inlets (40).

4. A containment fish trap according to claim 1, wherein: A ball valve (60) is installed at the bottom of the fish storage tank (6).

5. A fish-trapping and anti-escape device as described in claim 1, 2, or 4, characterized in that: At least one set of fish-attracting lights (7) is installed in both the fish-attracting area (4) and the fish-gathering area (5).

6. The fish-trapping and anti-escape device as described in claim 5, characterized in that: The top of the frame (1) is connected to several sets of lugs (10).

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