Fish concentrated transportation system

Abstract

The utility model provides a fish concentrated transportation system. The fish concentrated transportation system comprises a fishway and a plurality of fish passing auxiliary devices, the fish passing auxiliary device comprises a first supporting component, a second supporting component, a fish passing pipeline, a fish collecting groove, a fish guiding device and a plurality of limiting piles, the fish passing pipeline is connected with the fishway and the fish collecting groove through the first supporting component and the second supporting component, and the fish guiding device is connected with an inlet of the fish collecting groove; the limiting pile is located in a river channel, the fish collecting tank is connected with the limiting pile and is in a floating state, and the fish collecting tank can ascend and descend along the limiting pile along with the change of the water level of the river channel; a fish collecting box is arranged in the fish collecting tank; fish is guided by the fish guiding device to enter the fish collecting groove and the fish collecting box in sequence, and then enters the fishway along the fish passing pipeline.

Description

Technical Field

[0001] The utility model relates to the technical field of water conservancy projects, and in particular to a fish collection and transportation system. Background Art

[0002] Influenced by physiological needs, biological genetics, and environmental factors, fish often migrate. When fish migrate upstream from downstream rivers, they rely on fishways. However, when the river water level drops below the fishway entrance, fish cannot complete their migration on their own. To facilitate this migration, the current fish collection and transportation systems used are bulky, complex, and expensive to maintain. They also require numerous motorized devices, making them difficult to maneuver with river currents and unable to fully adapt to changes in downstream water patterns. Utility Model Content

[0003] In response to the defects in the existing technology, the purpose of this utility model is to provide a fish collection and transportation system. By installing a fish passage auxiliary device between the fishway entrance and the lower river water level, fish can swim along the fish collection trough and fish passage pipe to the fishway to complete migration, thereby improving the fish migration efficiency.

[0004] In order to achieve the above-mentioned purpose of the utility model, the utility model provides the following technical solutions:

[0005] A fish collection and transportation system, comprising a fishway and a plurality of fish passing auxiliary devices;

[0006] The fish passage auxiliary device includes a first supporting member, a second supporting member, a fish passage pipe, a fish collecting trough, a fish guide device and a plurality of limiting piles. The fish passage pipe is connected to the fishway and the fish collecting trough respectively through the first supporting member and the second supporting member. The fish guide device is connected to the entrance of the fish collecting trough.

[0007] The limiting piles are located in the river channel, the fish collecting trough is connected to the limiting piles and is in a floating state, and the fish collecting trough can be raised and lowered along the limiting piles as the water level of the river channel changes;

[0008] A fish collecting box is arranged in the fish collecting tank; the fish enter the fish collecting tank and the fish collecting box in sequence under the guidance of the fish guiding device, and then enter the fishway along the fish passing pipe.

[0009] Preferably, a fish barrier and a flow regulating plug-in plate are provided at the entrance of the fishway, and the flow regulating plug-in plate is located on the downstream side of the fish barrier.

[0010] Preferably, a fishway gate is provided at the connection between the fishway and the fish passage pipe.

[0011] Preferably, the first supporting member is located at the fishway so that the upstream end of the fish passage is communicated with the fishway; the second supporting member is located at the fish collecting box so that the downstream end of the fish passage is communicated with the fish collecting box.

[0012] Preferably, the fish collecting tank further comprises a diversion gate, a blocking net and an escape prevention cage. The diversion gate is arranged at the outlet of the fish collecting tank and can be opened and closed under the control of an opening and closing device; the blocking net is arranged in the fish collecting tank along the direction of water flow.

[0013] Preferably, the fish collecting box is provided with a water supply grille and a fish collecting box door panel, and the water supply grille is provided at the bottom or both sides of the fish collecting box; the fish collecting box door panel can be opened and closed under the control of an opening and closing device.

[0014] Preferably, a fish-driving device is provided in the fish passage pipe.

[0015] Preferably, the fish guiding device is a fish guiding net or a fish guiding electric grid, and is arranged on both sides and the bottom of the fish collecting tank.

[0016] Preferably, two sets of fish-passing auxiliary devices are included, and a separation net is provided in the fishway along the direction of water flow.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The fish collection and transportation system provided by the present invention only requires a small-volume fish-passing auxiliary device to be installed in the river when the water level in the river cannot meet the conditions for fish migration. By cooperating with the fish collection trough and the fish-passing pipe, the fish-passing auxiliary device can assist most of the fish in the river to migrate. The device has a simple structure and high fish-passing efficiency.

[0019] 2. The fish collection and transportation system provided by the present invention, when needed, only needs to insert the fish intercepting net and flow regulating door plate at the entrance of the fishway, and respectively connect the supporting structure, fish passage pipe, fish collection trough and fish guide device to realize assisted migration. It is easy to disassemble and move.

[0020] 3. The fish collecting and transporting system provided by the present invention has a fish collecting trough that can change with the water level, and fish guide devices are connected to both sides and the bottom of the fish collecting trough entrance. Therefore, the fish passing auxiliary device can better adapt to the use scenarios with large water level fluctuations.

[0021] 4. The fish collecting and transporting system provided by the present invention can realize the alternation of fish collecting process and fish passing process when fish passing auxiliary devices are installed on both sides of the fishway, avoiding the fish collecting vacuum period when the door panel of the fish collecting box is closed, and further improving the fish migration efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments with reference to the following drawings:

[0023] Figure 1 This is a schematic structural diagram of the fish collection and transportation system in the first embodiment;

[0024] Figure 2 A top view of the fish collection and transportation system in the first embodiment;

[0025] Figure 3 2. It is a schematic structural diagram of the first supporting member of the fish collection and transportation system in the first embodiment;

[0026] Figure 4 2. It is a structural diagram of the fish collection and transportation system in the second embodiment;

[0027] Figure 5 A top view of the fish collection and transportation system in the second embodiment;

[0028] Figure 6 is an enlarged view of part A in the top view of the fish collection and transportation system in the second embodiment;

[0029] Figure 7 is a cross-sectional view taken along direction BB of a top view of the fish collection and transportation system in the second embodiment;

[0030] Figure 8 Schematic diagram of the structure of the fishway gate in the second embodiment;

[0031] Description of reference numerals:

[0032] 1-Fishway;

[0033] 11-Fish fence;

[0034] 12-Flow regulating plug-in board;

[0035] 13-separator net;

[0036] 14-Fishway Gate;

[0037] 2-fish passing auxiliary device;

[0038] 21- first supporting member;

[0039] 22- second supporting member;

[0040] 23-Fish pipe;

[0041] 24-fish collecting tank;

[0042] 241-fish collection box;

[0043] 241a-water supply grid;

[0044] 241b-Fish collection box door panel;

[0045] 242- diversion door;

[0046] 243-blocking;

[0047] 244-anti-escape cage;

[0048] 25-fish guide device;

[0049] 26-Limiting pile. DETAILED DESCRIPTION

[0050] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0051] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0052] It should be noted that similar numbers and letters represent similar items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined or explained in subsequent figures. In addition, all directional indications in this application (such as up, down, left, right, front, back, bottom...) are only used to explain the relative position relationship, movement, etc. between the components under a specific posture (as shown in the figures). If the specific posture changes, the directional indication will also change accordingly. Furthermore, the descriptions of "first", "second", etc. in the application are for descriptive purposes only and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features.

[0053] First embodiment:

[0054] like Figures 1 to 3 As shown, the fish collection and transportation system provided in this embodiment includes a fishway 1 and several fish passing auxiliary devices 2. In this embodiment, the number of fish passing auxiliary devices 2 is one. In other embodiments, in order to improve the fish passing efficiency, two fish passing auxiliary devices 2 can be set to alternately pass and collect fish.

[0055] Specifically, the fish passage assisting device 2 includes a first support member 21, a second support member 22, a fish passage pipe 23, a fish collecting trough 24, a fish guide device 25, and several stopper piles 26. The fish guide device 25 is connected to the entrance of the fish collecting trough 24 and is located on both sides and the bottom of the trough 24. The fish guide device 25 can be a fish guide net or an electric fish guide grid. Fish are guided by the fish guide device 25 from the entrance into the fish collecting trough 24. The stopper piles 26 are fixed in the river channel, and the fish collecting trough 24 is detachably connected to the stopper piles 26. The specific connection method can be configured according to actual conditions. For example, the stopper piles 26 can be provided with sliding grooves, into which the fish collecting trough 24 is installed, or the fish collecting trough 24 can be connected to the stopper piles 26. The fish collecting trough 24 floats on the water surface and has a certain drainage depth. Therefore, the fish collecting trough 24 can be raised or lowered relative to the stopper piles 26 as the river water level changes. A fish collection box 241 is located at the exit of the fish collection tank 24. Fish entering the fish collection tank 24 can follow the fishway into the fish collection box 241, where they wait for passage. A first support member 21 is located at and connected to the fishway 1. A second support member 22 is located at and connected to the fish collection box 241. The ends of the fish passage 23 are connected to the first support member 21 and the second support member 22, respectively. Fish in the fish collection box 241 can follow the fish passage 23 into the fishway 1 and continue upstream, completing their migration.

[0056] In order to better realize the connection between the fishway 1, the fish pipe 23 and the fish collecting trough 24, joint bearings are provided in the first support member 21 and the second support member 22. As the water level of the river changes, the fish pipe 23 can rotate relative to the support member to adapt to the change in the position of the fish collecting trough 24.

[0057] In the fish collection and transportation system provided in this embodiment, a fish barrier 11 and a flow regulating plate 12 are provided at the entrance of the fishway 1. When the river water level is not lower than the entrance of the fishway 1, fish can enter directly from the entrance of the fishway 1 and swim upstream along the fishway. When the river water level is lower than the entrance of the fishway 1, the height difference causes the fish-attracting water flow to form a waterfall, preventing fish from naturally swimming into the fishway entrance. In this case, the fish barrier 11 and the flow regulating plate 12 are inserted at the entrance of the fishway 1, allowing the fish-attracting water flow to flow along the fish pipe 23 to the outlet of the fish collecting tank 24 to lure the fish. The fish barrier 11 prevents fish that have escaped from the fish pipe 23 from being washed back into the river by the current. The flow regulating plate 12, located downstream of the fish barrier 11, regulates the flow rate of water in the fish pipe 23 and maintains a suitable water level in the fishway 1.

[0058] As for the fish collection and transportation system provided in this embodiment, the fish collection tank 24 also includes a diversion gate 242, a blocking net 243 and an anti-escape cage 244. There are two diversion gates 242, which are rotatably connected to the two sides of the outlet of the fish collection tank 24 and can be opened and closed under the control of the opening and closing device. The diversion gate 242 can adjust the water flow rate and flow rate in the fish collection tank 24 by rotating to different opening and closing angles, thereby improving the fish attracting effect. The blocking net 243 is set in the center of the fish collection tank 24 along the direction of water flow, and the anti-escape cage 244 is set at the entrance of the fish collection tank 24 to prevent fish from swimming out of the fish collection tank 24.

[0059] In the fish collection and transportation system provided in this embodiment, the fish collection box 241 is further equipped with a water supply grille 241a and a fish collection box door 241b. The fish collection box door 241b can be opened or closed under the control of an opening and closing device. When the fish collection box door 241b is open, fish can enter the fish collection box 241 along the fish collection trough 24. However, due to the low water level in the fish passage 23, the fish cannot swim upstream. When the number of fish in the fish collection box 241 reaches a certain level, the fish collection box door 241b is closed. At this time, a large amount of water still flows into the fish passage 23, and the water level in the fish passage 23 quickly rises to the same level as the water level in the fishway 1. The fish can then swim out of the fish passage 23 and swim upstream along the fishway 1. A fish repelling device, such as an air bubble curtain or ultrasonic repelling device, can be installed in the fish passage 23 to improve fish repelling efficiency. When all fish have completed their migration, the fish collection box door 241b is opened and driven to collect the fish again. A counter can also be added to the entrance of the fish collecting box 241 for convenient counting. A water replenishment grid 241a is arranged at the bottom or both sides of the fish collecting box 241 to replenish or regulate the water flow in the fish collecting tank 24.

[0060] In the fish collection and transportation system provided in this embodiment, a fishway gate 14 is provided at the junction of the fishway 1 and the fish passage 23. This gate can be opened or closed under the control of an opening and closing device. When all the fish in the fish passage 23 have entered the fishway 1, closing the fishway gate 14 blocks the upstream water flow, facilitating the fish's upstream migration, preventing them from migrating downstream, and preventing the water pressure from being directly transmitted downstream.

[0061] In the fish collection and transportation system provided by this embodiment, when the river water level falls below the entrance of the fishway 1, fish cannot naturally swim into the fishway. In this case, a fish passage assisting device 2 is installed on the side of the fishway 1 entrance, and a flow regulating door panel is inserted at the entrance. This allows a fish-attracting water flow to flow along the fish passage pipe 23 to the fish collection trough 24. During operation, fish, guided by the fish guide device 25 and the fish-attracting water flow, swim into the entrance of the fish collection trough 24, then pass through the escape-proof cage 244 and enter the fish collection box 241. When the number of fish in the fish collection box 241 reaches a certain level, the fish collection box door 241b is closed, allowing a large amount of water to flow into the fish passage pipe 23. When the water level in the fish passage pipe 23 quickly rises to the same level as the fishway 1, the fish can then swim out of the fish passage pipe 23 and upstream along the fishway 1. When all the fish in the fish collection box 241 have completed their first migration, the fish collection box door 241b is opened to allow another round of fish-attracting and fish-assisting migration.

[0062] The specific process is as follows: when the water level of the river is lower than the entrance of the fishway 1, the two sets of fish-passing auxiliary devices 2 are respectively installed on both sides of the entrance of the fishway 1, the fishway gate 14 on the first side and the fish collecting box door plate 241b of the fish-passing auxiliary device 2 are opened, and the fishway gate 14 on the second side and the fish collecting box door plate 241b of the fish-passing auxiliary device 2 are closed; the flow regulating plug plate 12 is inserted at the entrance of the fishway 1, and at this time, only the water flow between the fish-passing auxiliary device 2 on the first side and the fishway 1 is in a connected state; the fish guide device 25 guides The fish enter the fish collecting trough 24 and the fish collecting box 241 on the first side in sequence. When the number of fish in the fish collecting box 241 on the first side reaches the desired value, the fish collecting box door panel 241b on the first side is closed, and the fishway gate 14 and the fish collecting box door panel 241b on the second side are opened. At this time, the fish on the second side enter the fish collecting box 241 one after another. After the fish collecting box door panel 241b on the first side is closed, the upstream water continues to flow into the fish passing pipe 23 on the first side and the fish collecting box 241, causing the water level in the fish passing pipe 23 to rise rapidly. , the fish swim along the first side fish passage duct 23 to the fishway 1 by themselves. When all the fish in the first side fish passage duct 23 enter the fishway 1, the fishway gate 14 on the first side is closed. When the number of fish in the second side fish collecting box 241 reaches the expected value, the fishway gate 14 on the second side and the fish collecting box door 241b on the first side are closed, and the fishway gate 14 and the fish collecting box door 241b on the first side are opened. The fish passage auxiliary device 2 on the first side resumes the normal fish attracting flow, and the fish collecting box 241 on the first side starts to collect fish again. The fish collecting box door 241 on the second side is closed. After the plate 241b is closed, the upstream water flow continues to flow into the fish passage 23 and the fish collecting box 241 on the second side, causing the water level in the fish passage 23 to rise rapidly, and the fish swim along the second side fish passage 23 to the fishway 1. When all the fish in the second side fish passage 23 enter the fishway 1, the fishway gate 14 on the second side is closed; repeat the above steps, so that the fish passage auxiliary device 2 on one side is collecting fish while the fish passage auxiliary device 2 on the other side is passing fish, realizing the overall continuous fish passing, fish gathering and assisted migration.

[0063] Such a structural design can achieve the following: First, when the water level in the river channel cannot meet the conditions for fish migration, only a small-volume fish-passing auxiliary device needs to be set up in the river channel. Through the cooperation of the fish collecting trough and the fish passing pipe, most of the fish in the river channel can be assisted to migrate. The device structure is simple and the fish passing efficiency is high; Second, when it is needed, only the fish blocking net and the flow regulating door panel need to be inserted at the entrance of the fishway, and the supporting structure, the fish passing pipe, the fish collecting trough and the fish guiding device need to be connected respectively to achieve assisted migration. The device is simple to disassemble and easy to move; Third, since the fish collecting trough can change with the change of water level, and the fish guiding devices are connected on both sides and the bottom of the entrance of the fish collecting trough, the fish passing auxiliary device can better adapt to the use scenarios with large water level changes; Fourth, when fish passing auxiliary devices are installed on both sides of the fishway, the fish collecting process and the fish passing process can be alternately carried out, avoiding the fish collecting vacuum period when the fish collecting box door panel is closed, and further improving the fish migration efficiency.

[0064] Second embodiment:

[0065] like Figures 4 to 8 As shown, this embodiment provides a fish collection and transportation system, which is basically the same in structure as the fish collection and transportation system in the first embodiment, with the following differences:

[0066] In the first embodiment, there is only one fish-passing assisting device 2. When the fish collecting box door panel 241b is closed, a large number of fish are waiting to be collected, which stagnates the fish-collecting process and reduces the efficiency of assisted migration. In this embodiment, two fish-passing assisting devices 2 are provided, one on each side of the entrance to the fishway 1. A dividing net 13 is also provided in the fishway 1 along the direction of water flow.

[0067] When the number of fish in the fish collecting box 241 on the first side reaches the expected value, the fish collecting box door panel 241b on the first side is closed, and the fishway gate 14 and the fish collecting box door panel 241b on the second side are opened at the same time. At this time, the fish on the second side enter the fish collecting box 241 one after another; after the fish collecting box door panel 241b on the first side is closed, the fish swim along the fish passing pipe 23 on the first side to the fishway 1 on their own. When all the fish in the fish passing pipe 23 on the first side enter the fishway 1, the fishway gate 14 on the first side is closed; when the number of fish in the fish collecting box 241 on the second side reaches the expected value, the fish collecting box door panel 241b on the second side is closed, and the fishway gate 14 and the fish collecting box door panel 241b on the first side are opened at the same time. The fish passing auxiliary device 2 on the first side resumes the normal fish luring flow, and the fish collecting box 241 on the first side starts to collect fish again. After the fish collecting box door panel 241b on the second side is closed, the fish swim along the second side fish passage 23 to the fishway 1 on their own. When all the fish in the second side fish passage 23 enter the fishway 1, the fishway gate 14 on the second side is closed.

[0068] Because the dividing net 13 is provided in the fishway 1 along the direction of water flow, it can prevent fish from swimming out through the fishway outlet on the other side while swimming upstream along one side of the fishway 1. By repeating the entire process, the fish-passing assisting device 2 can alternately collect and pass fish, greatly improving the efficiency of the migration assistance.

[0069] The above describes the specific embodiments of the present invention. Based on the above description, relevant personnel can make various changes and modifications without departing from the scope of the technical concept of this utility model.

Claims

1. A fish collection and transportation system, characterized in that: It comprises a fishway (1) and a number of fish-passing auxiliary devices (2); The fish passage auxiliary device (2) comprises a first supporting member (21), a second supporting member (22), a fish passage pipe (23), a fish collecting tank (24), a fish guide device (25) and a plurality of limiting piles (26); the fish passage pipe (23) is connected to the fishway (1) and the fish collecting tank (24) through the first supporting member (21) and the second supporting member (22), respectively; the fish guide device (25) is connected to the entrance of the fish collecting tank (24); The limiting pile (26) is located in the river channel, and the fish collecting trough (24) is connected to the limiting pile (26) and is in a floating state. The fish collecting trough (24) can be raised and lowered along the limiting pile (26) as the water level of the river channel changes; A fish collecting box (241) is provided in the fish collecting tank (24); fish enter the fish collecting tank (24) and the fish collecting box (241) in sequence under the guidance of the fish guiding device (25), and then enter the fishway (1) along the fish pipe (23).

2. The fish collection and transportation system according to claim 1, characterized in that: A fish barrier (11) and a flow regulating plugboard (12) are provided at the entrance of the fishway (1), and the flow regulating plugboard (12) is located on the downstream side of the fish barrier (11).

3. The fish collection and transportation system according to claim 1, characterized in that: A fishway gate (14) is provided at the connection between the fishway (1) and the fish passage pipe (23).

4. The fish collection and transportation system according to claim 1, characterized in that: The first supporting member (21) is located at the fishway (1), so that the upstream end of the fish passage pipe (23) is communicated with the fishway (1); the second supporting member (22) is located at the fish collection box (241), so that the downstream end of the fish passage pipe (23) is communicated with the fish collection box (241).

5. The fish collection and transportation system according to claim 1, characterized in that: The fish collecting tank (24) further comprises a diversion gate (242), a blocking net (243) and an escape prevention cage (244); the diversion gate (242) is arranged at the outlet of the fish collecting tank (24) and can be opened and closed under the control of an opening and closing device; the blocking net (243) is arranged in the fish collecting tank (24) along the direction of water flow.

6. The fish collection and transportation system according to claim 1, characterized in that: The fish collecting box (241) is provided with a water supply grille (241a) and a fish collecting box door panel (241b), wherein the water supply grille (241a) is provided at the bottom or both sides of the fish collecting box (241); and the fish collecting box door panel (241b) can be opened and closed under the control of an opening and closing device.

7. The fish collection and transportation system according to claim 1, characterized in that: A fish-driving device is provided in the fish-passing pipe (23).

8. The fish collection and transportation system according to claim 1, characterized in that: The fish guiding device (25) is a fish guiding net or a fish guiding electric grid, and is arranged on both sides and the bottom edge of the fish collecting tank (24).

9. The fish collection and transportation system according to claim 1, characterized in that: The fishway comprises two sets of fish-passing auxiliary devices (2), wherein a separation net (13) is arranged in the fishway along the water flow direction.

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