A high bank large drop scene fish catch flow or fry release system and method

Abstract

The application discloses a high-bank large-fall scene fishery catch flow or fry release system and method, which comprises a release pool arranged above a fish collecting pool (or other high-bank scene or release ship deck) and a hoisting assembly, the hoisting assembly is connected with the release assembly through a lifting hook, an opening is arranged at the top of the release assembly, a release chute is connected to one side of the release pool in a slanting manner, the bottom end of the release chute is located on the path of the lifting movement of the release assembly, and a valve for detecting the water level and automatically opening is arranged at the bottom of the release assembly. The safety and efficiency of fish release are improved.

Description

Technical Field

[0001] This invention relates to the field of fish fry release technology, and in particular to a system and method for releasing fish catch or fish fry in high-altitude, high-drop scenarios. Background Technology

[0002] Fish release activities are widely used in aquaculture operations such as releasing fish fry, fingerlings and broodstock into ponds, releasing fish through artificial breeding, and releasing fish over dams. The most typical methods are traditional culture bag adaptive surface release and slide-in release.

[0003] Fish collection and release over dams is one of the ecological compensation methods for hydropower stations or reservoir dams. The collected fish are divided into two categories: those specifically intended for dam crossing and those not required to cross. Releasing these two types of fish is not only a fundamental part of the collection and release process, but also involves two scenarios: releasing them over the dam to a suitable section of the river or releasing them back into the original river section. Currently, the former mainly uses specialized fishing boats for release. The fish are released from a valve near the bottom of the boat, and the valve can only be opened on a computer, allowing the fish to be seen swimming out with the water on monitoring images.

[0004] The downstream section of the river at hydroelectric power stations is mostly a deep U-shaped valley. Due to changes in operating conditions and seasons, especially during flood season or flood discharge, water levels and even the elevation of the riverbed fluctuate significantly. Traditional methods of gentle surface release using manual labor or specialized fish transport vessels pose serious safety hazards. Laying release pipes is extremely difficult and threatens riverbank safety, and cannot adapt to the significant seasonal changes in water levels and riverbeds downstream of the dam. Even after completion, the release pipes are often very long with a large drop, making releases tantamount to throwing fish from a height, failing to achieve gentle surface release. Especially with the constantly changing water level, it is difficult to ensure the fish outlet is near the surface, and during flood season, riverbed rise may bury the outlet, making maintenance difficult. Therefore, a high-bank, large-drop release system has been conceived and designed, applicable to the release of catches or fish fry. Summary of the Invention

[0005] The technical problem to be solved by this invention is that releasing fish in steep terrain poses a risk of injury to personnel and fish, and is also very difficult.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a fish catch release or fish fry release system for high-bank, large-drop scenarios, including a release pool and a hoisting component arranged above a fish collection pond. The hoisting component is connected to the release component through a hook. The top of the release component is provided with an opening. One side of the release pool is inclined to the release trough. The bottom of the release trough is located on the path of the release component's lifting and lowering movement. The bottom of the release component is provided with a valve that detects the water level and opens automatically.

[0007] Preferably, the release assembly includes a top cylindrical tank, a fish release hopper coaxially connected to the bottom of the tank, and a support column vertically fixed to the bottom of the tank. The bottom end of the fish release hopper is provided with a bottom plate with a notch. A release plate that covers the notch is rotatably provided on the bottom plate. The output end of the drive unit is connected to the rotating shaft of the release plate.

[0008] Preferably, a support bottom ring is fixedly connected to the bottom end of the support column. The support bottom ring is coaxially arranged with the tank body. A water pressure sensor is installed on the support bottom ring, and the water pressure sensor controls the drive component.

[0009] Preferably, a mounting plate is horizontally fixedly connected inside the support bottom ring, and the driving component includes a discharge motor fixedly mounted on the mounting plate. A drive gear is fixedly connected to the output end of the discharge motor, and a driven gear that meshes with the drive gear is fixedly connected to the rotating shaft of the discharge plate.

[0010] Preferably, a diagonal brace is provided between the supporting bottom ring and the fish container, and both the supporting column and the diagonal brace are arranged at equal angles around the axis of the tank.

[0011] Preferably, the support bottom ring and support column are filled with counterweight sand.

[0012] Preferably, the top of the tank is provided with lifting lugs at equal angles around the axis, and a lifting rope is connected between the lifting lugs on both sides of the tank, with the middle of the lifting rope connected to the lifting hook.

[0013] Preferably, the hoisting assembly includes a U-shaped mounting frame and a winding mechanism fixed to the bottom of the mounting frame. A steel wire rope is wound on the winding mechanism, and the hook is fixed to the movable end of the steel wire rope. A fixed pulley is provided at the top of the mounting frame, and the steel wire rope passes through the fixed pulley.

[0014] Preferably, one side of the fish collection pond is connected to an external river channel, and the connected side of the fish collection pond is provided with a grid-like concrete wall, and an escape-proof net is installed in the cavity of the concrete wall.

[0015] A method for releasing fish catches or fish fry from high banks with a large drop includes the following steps:

[0016] S1. The hoisting assembly's winding mechanism lifts the release assembly to directly below the bottom of the release trough, so that the top port of the tank is directly opposite the bottom of the release trough, and the release fish are released into the release pool by vehicle.

[0017] S2. The fish released from the release pool enter the tank through the release trough. After the tank is full, the hoisting component is controlled to move below the release component, and the release component enters the water.

[0018] S3. After the water pressure sensor at the bottom of the tank detects that the tank has reached the set water depth, it sends a signal to the control unit of the discharge motor. The discharge motor drives the discharge plate to rotate through the active gear and the driven gear, exposing the gap that was blocked by the bottom plate, so that the inside of the tank can be connected to the fish collection pond.

[0019] S4. Control the hoisting component to slowly lift the release component. During the lifting process, the fish inside the tank will flow out through the gap in the bottom plate, thus releasing the fish.

[0020] 1. This invention provides a system and method for releasing fish catches or fish fry in high-altitude, high-drop scenarios. By setting up a hoisting component, the release component is hoisted. The release component adopts a bottom release method, and the water depth of the release component is detected by a water pressure sensor. When the water depth is reached, the release is automatically started, and the release component is lifted during the release process to increase the release speed, efficiency, and safety.

[0021] 2. The overall center of gravity of the release assembly is located at the bottom, which ensures that the release assembly remains stable during hoisting and improves the safety of the released fish. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0023] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention.

[0024] Figure 2 This is a schematic diagram of the internal structure of the discharge component in an embodiment of the present invention.

[0025] Figure 3 This is a front view of the discharge component in an embodiment of the present invention.

[0026] Figure 4 This is a bottom view of the discharge assembly in an embodiment of the present invention.

[0027] Figure 5 This is a schematic diagram of the hoisting assembly in an embodiment of the present invention.

[0028] In the diagram: 1. Discharge pool; 2. Discharge trough; 3. Lifting assembly; 301. Mounting frame; 302. Winding mechanism; 303. Hook; 4. Discharge assembly; 401. Tank body; 402. Fish release hopper; 403. Support column; 404. Support bottom ring; 405. Water pressure sensor; 406. Mounting plate; 407. Lifting lug; 408. Discharge motor; 409. Drive gear; 410. Driven gear; 411. Diagonal brace; 412. Mounting shaft; 413. Base plate; 414. Discharge plate; 5. Fish collection pool; 6. Escape prevention net. Detailed Implementation

[0029] like Figure 1-5 As shown. This invention provides a system for releasing fish catches or fish fry in high-bank, large-drop scenarios, including a release pool 1 and a hoisting assembly 3 arranged above a fish collection pool 5. The hoisting assembly 3 is connected to a release assembly 4 via a hook 303. The release assembly 4 has an opening at its top. The release pool 1 is inclined to one side and connected to a release trough 2. The bottom of the release trough 2 is located on the path of the release assembly 4's lifting and lowering movement. The bottom of the release assembly 4 is equipped with a valve that detects the water level and opens automatically.

[0030] Fish fry are transported to release pond 1 by fish transport vehicle. The release component 4 is lifted to the side of the discharge port at the bottom of the release trough 2 by hoisting component 3, so that the top opening of the release component 4 is connected to the discharge port at the bottom of the release trough 2. Then, the fish fry in the release pond 1 are slid into the release component 4 through the release trough 2. After there are enough fish fry in the release component 4, the hoisting component 3 is controlled to lower the release component 4 into the fish collection pond 5. After the release component 4 reaches the fish collection pond 5, the release component 4 is controlled to release the fish fry in the tank. Finally, the release component 4 is lifted by hoisting component 3.

[0031] like Figure 2-4 As shown. The discharge assembly 4 includes a top cylindrical tank 401, a fish hopper 402 coaxially connected to the bottom of the tank 401, and a support column 403 vertically fixed to the bottom of the tank 401. The bottom end of the fish hopper 402 is provided with a bottom plate 413, and a notch is provided on the bottom plate 413. A discharge plate 414 that blocks the notch is rotatably provided on the bottom plate 413. The output end of the drive unit is connected to the mounting shaft 412 of the discharge plate 414.

[0032] The top of the tank 401 is provided with a circular opening for fish and water to enter. The support column 403 provides stable support for the tank 401 when it is placed on the ground. The discharge plate 414 is used to cover the notch on the bottom plate 413. By rotating the discharge plate 414 through the drive component, the discharge plate 414 is rotated to the other side of the notch on the bottom plate 413, so that the notch on the bottom plate 413 is opened, and the inside of the tank 401 is connected to the external water through the notch. Then, by lifting the tank 401, the fish fry and water inside the tank 401 flow out from the notch on the bottom plate 413 under the action of gravity, thus realizing the release.

[0033] like Figure 3As shown. A support bottom ring 404 is fixedly connected to the bottom end of the support column 403. The support bottom ring 404 is coaxially arranged with the tank body 401. A water pressure sensor 405 is installed on the support bottom ring 404, and the water pressure sensor 405 controls the drive component. A DC power supply module is installed at the bottom of the tank body 401 to power the drive component, the water pressure sensor 405 and its controller. When the water pressure detected by the water pressure sensor 405 is consistent with the set water pressure, the controller of the water pressure sensor 405 sends a signal, causing the drive component to drive the mounting shaft 412 of the discharge plate 414 to rotate, causing the discharge plate 414 to rotate to one side of the notch in the bottom plate 413 for discharge.

[0034] like Figure 3 As shown. A mounting plate 406 is horizontally fixedly connected inside the support bottom ring 404. The driving component includes a discharge motor 408 fixedly mounted on the mounting plate 406. A drive gear 409 is fixedly connected to the output end of the discharge motor 408. A driven gear 410 that meshes with the drive gear 409 is fixedly connected to the mounting shaft 412 of the discharge plate 414.

[0035] The discharge motor 408 is an explosion-proof and waterproof motor. The output shaft of the discharge motor 408 is equipped with a drive gear 409. The discharge motor 408 drives the drive gear 409 to rotate, and the drive gear 409 drives the driven gear 410 that meshes with it to rotate. Since the driven gear 410 is coaxially fixedly installed on the mounting shaft 412 of the discharge plate 414, the rotation of the discharge plate 414 can be realized.

[0036] like Figure 3 As shown, to ensure stable support of the bottom support structure of the tank 401, a diagonal brace 411 is provided between the support bottom ring 404 and the fish container 402. Both the support column 403 and the diagonal brace 411 are arranged at equal angles around the axis of the tank 401. By fixing the diagonal brace 411 to the support bottom ring 404, the fish container 402 is supported by the diagonal brace 411, thereby increasing the support area and improving stability. Four support columns 403 and four diagonal braces 411 are provided.

[0037] As a preferred embodiment of the present invention, the supporting bottom ring 404 and the supporting column 403 are filled with counterweight sand. By filling the supporting bottom ring 404 and the supporting column 403 with sand, the center of gravity of the tank 401 is lowered, ensuring the safety of the tank 401 during the hoisting process.

[0038] like Figure 3 As shown, to facilitate the connection between the hoisting assembly 3 and the tank 401, the top of the tank 401 is provided with lifting lugs 407 at equal angles around the axis. A hoisting rope is connected between the lifting lugs 407 on both sides of the tank 401, and the middle of the hoisting rope is connected to the hook 303.

[0039] like Figure 5 As shown. The hoisting assembly 3 includes a 7-shaped mounting frame 301 and a winding mechanism 302 fixed to the bottom of the mounting frame 301. A steel wire rope is wound on the winding mechanism 302, and the hook 303 is fixed to the movable end of the steel wire rope. A fixed pulley is provided at the top of the mounting frame 301, and the steel wire rope passes through the fixed pulley. The winding mechanism 302 controls the winding and unwinding of the steel wire rope, thereby driving the discharge assembly 4 to move vertically through the steel wire rope and the hook 303.

[0040] like Figure 1 As shown. One side of the fish collection pond 5 is connected to an external river channel, and a grid-like concrete wall is provided on the connected side of the fish collection pond 5, with an escape-proof net 6 installed in the cavity of the concrete wall. Some of the catch is temporarily raised in the fish collection pond 5, and after the designated release period, it is retrieved through the fish collection bucket in the fish collection pond 5 and then released.

[0041] A method for releasing fish catches or fish fry from high banks with a large drop includes the following steps:

[0042] S1. The winding mechanism 302 of the hoisting component 3 lifts the release component 4 to directly below the bottom of the release trough 2, so that the top port of the tank 401 is directly opposite the bottom of the release trough 2, and the release fish are released into the release pool 1 by vehicle.

[0043] S2. The fish released in the release pool 1 enter the tank 401 through the release chute 2. After the tank 401 is full, the hoisting component 3 is controlled to move below the release component 4, and the release component 4 enters the water.

[0044] S3. After the water pressure sensor 405 at the bottom of the tank 401 detects that the tank 401 has reached the set water depth, it sends a signal to the control unit of the discharge motor 408. The discharge motor 408 drives the discharge plate 414 to rotate through the driving gear 409 and the driven gear 410, exposing the gap that was blocked by the bottom plate 413, so that the inside of the tank 401 is connected to the fish collection pond 5.

[0045] S4. Control the hoisting component 3 to slowly lift the release component 4. During the lifting process, the released fish in the tank 401 flow out through the notch on the bottom plate 413, thus realizing the release of the released fish.

Claims

1. A method for releasing fish catches or fry from a high bank with a large drop, characterized in that: The system includes a discharge pool (1) arranged above the fish collection pool (5) and a hoisting assembly (3). The hoisting assembly (3) is connected to the discharge assembly (4) via a hook (303). The top of the discharge assembly (4) is provided with an opening. The discharge pool (1) is inclined to one side and connected to the discharge trough (2). The bottom of the discharge trough (2) is located on the path of the discharge assembly (4) for lifting and lowering. The bottom of the discharge assembly (4) is provided with a valve that detects the water level and opens automatically. The delivery method includes the following steps: S1. The winding mechanism (302) of the hoisting assembly (3) lifts the release assembly (4) to directly below the bottom of the release trough (2), so that the top port of the tank (401) faces the bottom of the release trough (2), and the release fish are released into the release pool (1) by vehicle. S2. The fish released in the release pool (1) enter the tank (401) through the release trough (2). After the tank (401) is full, the hoisting component (3) is controlled to lower the release component (4) into the water. S3. After the water pressure sensor (405) at the bottom of the tank (401) detects that the tank (401) has reached the set water depth, it sends a signal to the control unit of the discharge motor (408). The discharge motor (408) drives the discharge plate (414) to rotate through the driving gear (409) and the driven gear (410), exposing the gap in the bottom plate (413) that was blocked, so that the inside of the tank (401) is connected to the river water. S4. Control the hoisting component (3) to slowly lift the release component (4). During the lifting process, the released fish in the tank (401) flow out through the gap on the bottom plate (413) to realize the release of the released fish. The discharge assembly (4) includes a top cylindrical tank (401), a fish hopper (402) coaxially connected to the bottom of the tank (401), and a support column (403) vertically fixed to the bottom of the tank (401). The bottom end of the fish hopper (402) is provided with a bottom plate (413), and a notch is provided on the bottom plate (413). A discharge plate (414) that blocks the notch is rotatably provided on the bottom plate (413). The output end of the drive unit is connected to the mounting shaft (412) of the discharge plate (414).

2. The method for releasing fish catch or fry from a high bank with a large drop as described in claim 1, characterized in that: The bottom end of the support column (403) is fixedly connected to a support bottom ring (404). The support bottom ring (404) is coaxially arranged with the tank body (401). A water pressure sensor (405) is installed on the support bottom ring (404). The water pressure sensor (405) controls the drive component.

3. The method for releasing fish catch or fry from a high bank with a large drop as described in claim 2, characterized in that: A mounting plate (406) is horizontally fixedly connected inside the support bottom ring (404). The driving component includes a discharge motor (408) fixedly mounted on the mounting plate (406). A drive gear (409) is fixedly connected to the output end of the discharge motor (408). A driven gear (410) that meshes with the drive gear (409) is fixedly connected to the mounting shaft (412) of the discharge plate (414).

4. The method for releasing fish catch or fry from a high bank with a large drop as described in claim 3, characterized in that: A diagonal brace (411) is provided between the supporting bottom ring (404) and the fish container (402). The supporting column (403) and the diagonal brace (411) are both arranged at equal angles around the axis of the tank (401).

5. The method for releasing fish catch or fry from a high bank with a large drop as described in claim 4, characterized in that: The support bottom ring (404) and support column (403) are filled with counterweight sand.

6. The method for releasing fish catch or fry from a high bank with a large drop as described in claim 1, characterized in that: The top of the tank (401) is provided with lifting lugs (407) at equal angles around the axis. A lifting rope is connected between the lifting lugs (407) on both sides of the tank (401), and the middle part of the lifting rope is connected to the hook (303).

7. The method for releasing fish catch or fry from a high bank with a large drop as described in claim 1, characterized in that: The hoisting assembly (3) includes a 7-shaped mounting frame (301) and a winding mechanism (302) fixed at the bottom of the mounting frame (301). A wire rope is wound on the winding mechanism (302). The hook (303) is fixed to the movable end of the wire rope. A fixed pulley is provided at the top of the mounting frame (301), and the wire rope passes through the fixed pulley.

8. The method for releasing fish catch or fry from a high bank with a large drop as described in claim 1, characterized in that: One side of the fish collection pond (5) is connected to the external river channel, and a grid-shaped concrete wall is provided on the connected side of the fish collection pond (5), and an escape-proof net (6) is provided in the cavity of the concrete wall.

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