Fish passing system with autonomous and auxiliary fish passing functions
By designing a fishing system that combines both independent and auxiliary fishing functions, the problem that fishing facilities in the prior art cannot achieve continuous dam passing and adapt to water level changes in large numbers of fish, and achieve efficient and adaptability of fish to continuous dam passing and water level changes.
Patent Information
- Application Number
- CN202510242741.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-03
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2045-03-03
AI Technical Summary
The fishing facilities in existing water conservancy and hydropower projects cannot achieve continuous dam crossing of large numbers of fish, nor can they adapt to the needs of changes in water levels upstream of the dam.
A fish passing system with both autonomous and auxiliary fish passing functions was designed. The system includes a base and a fish path combination. The fish path combination is adjusted through the articulation structure and drive mechanism, and combined with the fish lifting mechanism and the fish path partition, the vertical lifting and autonomous upward tracing of the fish is achieved.
The system can flexibly switch auxiliary and autonomous fishing modes when the water level changes downstream of the dam, achieving efficient and continuous dam passing of fish and adapting to scenarios where water level changes amplitude.
Smart Images

Figure CN119877488A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of water conservancy and hydropower ecological protection, and in particular to a fish passing system with both autonomous and auxiliary fish passing functions. Background Art
[0002] Fish lift is one of the main types of fish passing facilities in water conservancy and hydropower projects. Its working principle is similar to that of a ship lift. It mainly uses fish luring facilities to lure fish into metal mesh cages or trough-type fish boxes, and then uses vertical or inclined lifting methods to turn the fish boxes over the dam, thereby achieving the purpose of fish ascending or descending.
[0003] Fishway is the most widely used type of fish passage facility in water conservancy and hydropower projects. Partitions and guide plates are set on the two side walls of the water tank to form a vertical gap between the two, thus dividing the water tank into a series of pools and fishways.
[0004] From the actual effect, the fish lift is a facility for fish to pass upstream independently. It improves the efficiency of fish passing the dam through a mechanical lifting and transfer process. It has a small total volume, low sensitivity to changes in water levels upstream of the dam, and low physical exertion of fish passing the dam. It is suitable for bottom fish passing the dam. However, its disadvantage is high operating and maintenance costs. Since the transfer and lifting process is mechanically operated, the operation has a cyclical characteristic, and it is difficult to achieve large numbers of fish passing the dam continuously. The fishway is a facility for fish to pass upstream independently. It mainly uses fishway baffles to dissipate energy of the water flow in the fishway chamber to create hydraulic conditions suitable for fish to go upstream. The fishway has the advantages of stable structure and little interference from human mechanical operations, and can achieve continuous passage of large numbers of fish. However, its disadvantage is that the fishway outlet structure is fixed, which makes it difficult to adapt to large-scale changes in water levels upstream of the dam. In order to achieve a good energy dissipation effect, it often requires a bending arrangement that occupies a large amount of site space.
[0005] In the prior art, the structures of fish lifts or fishways are fixed, and there is no fish-passing facility that combines the advantages of fish lifts and fishways. Each of the two has certain disadvantages. Therefore, it is necessary to explore a new type of fish-passing facility that can combine the advantages of fish lifts and fishways, which can achieve continuous fish passing and good energy dissipation effect like fishways, and can occupy a small space and adapt to large water level fluctuations like fish lifts. This has long-term positive significance for promoting the research on fish-passing facilities in the water conservancy and hydropower industries. Summary of the invention
[0006] The main purpose of the present invention is to provide a fish passing system with both autonomous and assisted fish passing functions, aiming to solve the above technical problems.
[0007] To achieve the above-mentioned purpose, the present invention proposes a fish passing system with both autonomous and auxiliary fish passing functions, comprising a base and a fishway assembly; a vertical pier is arranged on the base; a temporary storage tray is arranged on the upper part of the pier; the upper part of the fishway assembly is installed on the outer peripheral surface of the temporary storage tray through a hinge structure; a driving mechanism is arranged on the pier for driving the fishway assembly to rotate around the pin shaft of the hinge structure; the fishway assembly comprises a first square tube body and a second square tube body; a fish lifting mechanism is arranged in the first square tube body and the fish is lifted vertically into the temporary storage tray; a plurality of pairs of fishway partitions are arranged in the second square tube body from top to bottom to form a vertical slit fishway; a water pump is arranged on the pier for replenishing water to the temporary storage tray and the second square tube body; a discharge pipe is connected to the bottom of the temporary storage tray.
[0008] Preferably, the fish lifting mechanism includes a slide rail, a plurality of fish collecting boxes and a plurality of screw rods arranged inside the first square tube body; the fish collecting boxes are slidably matched with the slide rail, and each fish collecting box is threadedly matched with a screw rod; a plurality of driving motors are arranged on the top of the first square tube body, and the output shaft of each driving motor is connected with the top end of a screw rod; fish collecting ports with different elevations are arranged on the first square tube body, and when the fish collecting box stays at the fish collecting port position, the fish collecting port is connected with the inlet of the fish collecting box; a fish outlet is arranged on the upper part of the first square tube body, and when the fish collecting box stays at the fish outlet position, the outlet of the fish collecting box is connected with the fish outlet; a slide plate is hinged at the fish outlet position, and the slide plate can be overlapped onto the temporary storage tray.
[0009] Preferably, a first hoist is provided on the top of the first square tube, and a first traction rope is wound on the first hoist. The first traction rope is connected to the slide plate and is used to drive the slide plate to rotate around the hinge point.
[0010] Preferably, the fish collecting mouth is in the shape of a trumpet, and a fish attracting device is provided on the fish collecting mouth.
[0011] Preferably, the driving mechanism includes a walkway plate, a second winch, and a second steel wire rope wound on the second winch; the walkway plate is fixedly mounted on the upper part of the pier, the second winch is mounted on the cantilever end of the walkway plate, and the second steel wire rope is connected to the fishway assembly.
[0012] Preferably, a fixed pier is provided on the top of the pier column; and a plurality of cables are provided between the fixed pier and the walkway plate.
[0013] Preferably, the hinge structure includes a first hinge plate, a second hinge plate and a pin; the first hinge plate is fixed to the outer circumference of the temporary storage disk; the second hinge plate is welded to the second square tube body; the first hinge plate and the second hinge plate are connected by a pin.
[0014] Preferably, a plurality of diagonal bracing rods are arranged between the pier and the base.
[0015] Preferably, an inlet gate is provided at the fish inlet end of the second square tube.
[0016] Preferably, the fish passing system further comprises a transfer vehicle, and the release pipeline is connected to the transfer vehicle.
[0017] Due to the adoption of the above technical solution, the beneficial effects of the present invention are as follows:
[0018] (1) The present invention constructs an efficient and variable fish passing mode. In the present invention, by setting a fish lifting mechanism in the first square tube body and setting a fishway partition in the second square tube body, two fish passing channels with both autonomous and auxiliary upstream functions are constructed for the fishway assembly. When in use, the entire fish passing system is installed on the river channel on the downstream side of the dam. When the water level downstream of the dam is in a low water level state, the entire fishway assembly can be adjusted to a vertical state, and the fish can be lifted vertically to the temporary storage tray by the fish lifting mechanism in the first square tube body, and then released through the release pipe to form a transfer. When the water level downstream of the dam rises and is in a high water level state, the fishway assembly can be adjusted to an inclined state by the driving mechanism, and the vertical slit fishway formed by the second square tube body can be used for autonomous fish passing. The upstream fish enter the temporary storage tray through the vertical slit fishway, and then are released through the release pipe to form a transfer. Therefore, the fish passing system provided by the present invention has both autonomous and assisted fish passing modes, which subverts the single fish passing mode of traditional fish passing facilities, gives full play to the respective comparative advantages of autonomous fish passing facilities and assisted fish passing facilities, and has a relatively broad promotion prospect in the field of fish passing in high, medium and low dams.
[0019] (2) The fish passage system provided by the present invention can be applied to scenarios with large water level fluctuations below the dam, and is particularly suitable for fish passage requirements with large water level fluctuations downstream of the dam. When the downstream water level frequently fluctuates between medium and low levels, the fish collection openings at different elevations on the first square tube body can be used to collect fish, and then the fish can be vertically lifted into the temporary storage tray by the fish lifting mechanism. When the downstream water level is at a high water level, the fishway assembly can be adjusted to an inclined state, so that the fish lifting machine-assisted fish passage mode can be switched to the fishway autonomous fish passage mode, providing space for fish with strong swimming ability to migrate upstream autonomously.
[0020] (3) The fish passing system provided by the present invention collects fish at fish collecting openings at different elevations on the first square tube body. Each fish collecting box is threadedly engaged with a screw rod, and the output shaft of each driving motor is connected to the top end of a screw rod. Therefore, the lifting and lowering processes of the multiple fish collecting boxes inside the first square tube body can be achieved without interfering with each other, and the fish lifting operation can be completed in parallel at the same time, thereby ensuring the smoothness of the transportation process of multiple groups of imported fish clusters in different water layers. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0022] Figure 1 This is a front view of the fish passage system provided by the present invention, and the fishway assembly is in a vertical state;
[0023] Figure 2 It is a three-dimensional structural diagram of the fish passage system provided by the present invention, and the fishway assembly is in a vertical state;
[0024] Figure 3 This is a front view of the fish passage system provided by the present invention, and the fishway assembly is in an inclined state;
[0025] Figure 4 It is a three-dimensional structural diagram of the fish passage system provided by the present invention, and the fishway assembly is in a tilted state;
[0026] Figure 5 It is a schematic diagram of the structure in which the temporary storage tray and the second square tube body are hinged in the present invention;
[0027] Figure 6 It is a schematic diagram of a vertical slot fishway formed by multiple pairs of fishway partitions spaced from top to bottom in the second square tube body of the present invention;
[0028] Figure 7 It is a front view of the first square tube body and the fish lifting mechanism therein in the present invention;
[0029] Figure 8 It is a rear view of the first square tube body and the fish lifting mechanism therein in the present invention;
[0030] Fig. 9 It is a side view of the first square tube body and the fish lifting mechanism therein in the present invention, and the slide plate is in an unfolded state at this time;
[0031] Fig.10 It is a side view of the first square tube body and the fish lifting mechanism therein in the present invention, and the slide plate is in a retracted state at this time;
[0032] Fig.11 The three-dimensional structure of the first square tube body and the fish lifting mechanism inside the first square tube body of the present invention Figure 1 , the skateboard is in the unfolded state
[0033] Fig.12The three-dimensional structure of the first square tube body and the fish lifting mechanism inside the first square tube body of the present invention Figure 2 , the skateboard is in the unfolded state
[0034] Fig.13 The three-dimensional structure of the first square tube body and the fish lifting mechanism inside the first square tube body of the present invention Figure 3 , at this time, the skateboard is in a folded state.
[0035] Explanation of the accompanying drawings: 1. pier column; 2. fixed pier; 3. cable; 4. second winch; 5. second traction rope; 6. walkway board; 7. first square tube body; 701. drive motor; 702. first winch; 703. first traction rope; 704. slide plate; 705. fish collecting port; 706. fish collecting box; 707. screw rod; 708. slide rail; 709. fish outlet; 8. second square tube body; 801. fishway partition; 802. inlet gate; 9. base; 10. discharge pipe; 11. transfer vehicle; 12. temporary storage tray; 13. pin shaft; 14a. first hinged plate; 14b. second hinged plate; 15. water pump; 16. diagonal support rod; 100. fishway assembly. DETAILED DESCRIPTION
[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0037] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0038] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.
[0039] Combination Figures 1 to 13As shown, a fish passing system with both autonomous and auxiliary fish passing functions comprises a base 9 and a fishway assembly 100; a vertical pier 1 is arranged on the base 9; a temporary storage tray 12 is arranged on the upper part of the pier 1; the upper part of the fishway assembly 100 is installed on the outer peripheral surface of the temporary storage tray 12 through a hinge structure; a driving mechanism is arranged on the pier 1 for driving the fishway assembly 100 to rotate around the pin 13 of the hinge structure, so as to adjust the inclination angle of the fishway assembly 100; the fishway assembly 100 comprises a first square tube body 7 and a second square tube body 8; a fish lifting mechanism is arranged in the first square tube body 7 for vertically lifting fish into the temporary storage tray 12; a plurality of pairs of fishway partitions 801 are arranged from top to bottom in the second square tube body 8 to form a vertical slit fishway.
[0040] A water pump 15 is provided on the pier 1 to replenish water to the temporary storage tray 12 and the second square tube body 8; a discharge pipe 10 is connected to the bottom of the temporary storage tray 12. Specifically, the water pump 15 is connected with an inlet pipe and an outlet pipe, the inlet end of the inlet pipe is set below the water level of the river downstream of the dam, and the outlet pipe of the water pump 15 is connected to the temporary storage tray 12 and the second square tube body 8 respectively.
[0041] The fish lifting mechanism comprises a slide rail 708, a plurality of fish collecting boxes 706 and a plurality of screw rods 707 arranged inside the first square tube body 7; the fish collecting boxes 706 are slidably matched with the slide rail 708, and each fish collecting box 706 is threadedly matched with a screw rod 707; a plurality of drive motors 701 are arranged on the top of the first square tube body 7, and the output shaft of each drive motor 701 is connected to the top of a screw rod 707; fish collecting ports 701 at different elevations are arranged on the first square tube body 7 5. When the fish collecting box 706 stays at the position of the fish collecting port 705, the fish collecting port 705 is connected with the inlet of the fish collecting box 706; a fish outlet 709 is provided on the upper part of the first square tube body 7, and when the fish collecting box 706 stays at the position of the fish outlet 709, the outlet of the fish collecting box 706 is connected with the fish outlet 709; a slide plate 704 is hinged at the position of the fish outlet 709, and the slide plate 704 can be overlapped onto the temporary storage tray 12. By adopting the above structure, when the fish enters the fish collecting box 706 from the fish collecting port 705, the corresponding drive motor 701 can be started to drive the corresponding screw rod 707 to rotate, and then the fish collecting box 706 can be vertically lifted. When the fish collecting box 706 moves to the fish outlet 709, the drive motor 701 is turned off, and the fish inside the fish collecting box 706 can slide from the fish outlet 709 to the temporary storage tray 12 through the slide plate 704, completing the fish lifting operation. Since each fish collecting box 706 is threadedly matched with a screw rod 707, and the output shaft of each drive motor 701 is connected to the top of a screw rod 707, each fish collecting box 706 can achieve independent lifting control, and the lifting processes of multiple fish collecting boxes inside the first square tube body do not interfere with each other, and the fish lifting operation can be completed in parallel at the same time.
[0042] A first winch 702 is provided on the top of the first square tube 7, and a first traction rope 703 is wound on the first winch 702, and the first traction rope 703 is connected to the slide plate 704, and is used to drive the slide plate 704 to rotate around the hinge point. The slide plate 704 can be driven to rotate around the hinge point by using the first winch 702 and the first traction rope 703, and then the slide plate 704 can be folded or unfolded. When the fishway assembly 100 needs to be adjusted to an inclined state, the slide plate 704 can be folded to avoid interference. When the fishway assembly 100 needs to be adjusted to a vertical state, the slide plate 704 can be unfolded and overlapped on the temporary storage tray 12, so that the fish in the fish collecting box 706 can slide from the fish outlet 709 through the slide plate 704 into the temporary storage tray 12.
[0043] The fish collecting port 705 is in a trumpet shape, and a fish attracting device is arranged on the fish collecting port 705, and the fish attracting device includes but is not limited to a fish attracting light.
[0044] The driving mechanism includes a walkway plate 6, a second hoist 4, and a second steel wire rope 5 wound on the second hoist 4; the walkway plate 6 is fixedly installed on the upper part of the pier 1, the second hoist 4 is installed on the cantilever end of the walkway plate 6, and the second steel wire rope 5 is connected to the fishway assembly 100. Specifically, the second hoist 4 is used to retract the second steel wire rope 5 to achieve the purpose of adjusting the inclination angle of the fishway assembly 100. When the fishway assembly 100 needs to be set to a vertical state, the second hoist 4 only needs to be used to lower the second steel wire rope 5, and the fishway assembly 100 rotates to a vertical state around the pin 13 of the hinge structure under the action of its own gravity. When the fishway assembly 100 needs to be set to an inclined state, the second hoist 4 only needs to be used to retract the second steel wire rope 5, so that the fishway assembly 100 rotates to an inclined state around the pin 13 of the hinge structure.
[0045] A fixed pier 2 is arranged on the top of the pier column 1, and a plurality of cables 3 are arranged between the fixed pier 2 and the walkway plate 6. The cables 3 can improve the stability of the walkway plate 6.
[0046] Combination Figure 5 As shown, the hinge structure includes a first hinge plate 14a, a second hinge plate 14b and a pin 13; the first hinge plate 14a is fixed on the outer peripheral surface of the temporary storage disk 12; the second hinge plate 14b is welded on the second square tube body 8; the first hinge plate 14a and the second hinge plate 14b are connected by the pin 13.
[0047] A plurality of diagonal bracing rods 16 are arranged between the pier column 1 and the base 9 to improve the stability of the pier column 1 and avoid shaking.
[0048] In this embodiment, an inlet gate 802 is provided at the fish inlet end of the second square tube 8. The fish inlet of the vertical slot fishway formed by the second square tube 8 is opened and closed by the inlet gate 802. A fish attracting device is also provided at the fish inlet of the vertical slot fishway, and the fish attracting device includes but is not limited to a fish attracting light.
[0049] In this embodiment, the fish passing system further includes a transfer vehicle 11, and the release pipe 10 is connected to the transfer vehicle 11. Specifically, the bottom of the temporary storage tray 12 is set to be concave, wherein the lowest point of the concave shape of the temporary storage tray 12 is at the connection with the release pipe 10, so that the fish can be transferred to the transfer vehicle 11 through the lowest point after being gathered.
[0050] When the fish passing system provided in this embodiment is used, the entire fish passing system is installed on the river channel on the downstream side of the dam. During operation, it has an auxiliary fish passing mode and an autonomous fish passing mode. The specific operating principle is as follows:
[0051] (1) Assisted fish passing mode
[0052] When the water level downstream of the dam is at a low level, the entire fishway assembly 100 can be adjusted to a vertical state, the fish attracting device on the fish collecting mouth 705 can be started, the driving motor 701 is used to drive the screw rod 707 to rotate, and the fish collecting box 706 is controlled to slide on the slide rail 708 to the corresponding fish collecting mouth 705 to stay and receive the attracted fish.
[0053] After the fish enter the fish collecting box 706 through the fish collecting port 705, the driving motor 701 drives the screw rod 707 to rotate, and the fish collecting box 706 is lifted up to the position of the fish outlet 709 of the first square tube body 1. At this time, the fish in the fish collecting box 706 can slide from the fish outlet 709 through the slide plate 704 to the temporary storage tray 12, completing the fish lifting operation. The fish in the temporary storage tray 12 slides through the release pipe 10 to the transfer vehicle 11, and finally is transferred to the river section above the dam by the transfer vehicle 11 for release, completing a fish crossing the dam process.
[0054] (2) Switch from assisted fish passing mode to autonomous fish passing mode
[0055] When the water level downstream of the dam rises and is at a high water level, the fishway assembly 100 needs to be adjusted to an inclined state, and the vertical slit fishway formed by the second square tube body 8 is used for fish passing. The specific operation is as follows: the second winch 4 is used to reel in the second steel wire rope 5, so that the fishway assembly 100 rotates around the pin 13 of the hinged structure from a vertical state to an inclined state, and the auxiliary fish passing mode is converted to an autonomous fish passing mode. At this time, the fish inlet of the vertical slit fishway formed by the second square tube body 8 is at a lower position on the horizontal plane, and the water pump 15 is used to replenish water to the second square tube body 8, and the inlet gate 802 is opened. The fish school goes upstream along the various pools of the vertical slit fishway at various levels, and finally enters the temporary storage tray 12 from the outlet end of the vertical slit fishway, and finally enters the transfer vehicle 11 through the discharge pipe 10, completing a fish school passing the dam process.
[0056] (3) Switch from autonomous fish passing mode to assisted fish passing mode
[0057] When the water level downstream of the dam drops from a high water level to a low water level, the assisted fish passing mode is switched to the autonomous fish passing mode in the opposite operating mode, returning to the assisted fish passing mode.
[0058] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. A fish passing system with both autonomous and assisted fish passing functions, characterized in that: The fishway assembly (100) comprises a base (9) and a fishway assembly (100); a vertical pier (1) is arranged on the base (9); a temporary storage tray (12) is arranged on the upper part of the pier (1); the upper part of the fishway assembly (100) is mounted on the outer peripheral surface of the temporary storage tray (12) through a hinge structure; a driving mechanism is arranged on the pier (1) for driving the fishway assembly (100) to rotate around a pin shaft (13) of the hinge structure; The fishway assembly (100) comprises a first square tube body (7) and a second square tube body (8); a fish lifting mechanism is arranged in the first square tube body (7) for vertically lifting fish into the temporary storage tray (12); a plurality of pairs of fishway partitions (801) are arranged in the second square tube body (8) from top to bottom at intervals to form a vertical slot fishway; A water pump (15) is arranged on the pier (1) for replenishing water to the temporary storage tray (12) and the second square tube body (8); a discharge pipe (10) is connected to the bottom of the temporary storage tray (12).
2. A fish passing system with both autonomous and assisted fish passing functions as claimed in claim 1, characterized in that: The fish lifting mechanism comprises a slide rail (708) arranged inside the first square tube (7), a plurality of fish collecting boxes (706) and a plurality of screw rods (707); the fish collecting boxes (706) are slidably matched with the slide rail (708), and each fish collecting box (706) is threadedly matched with a screw rod (707); a plurality of drive motors (701) are arranged on the top of the first square tube (7), and the output shaft of each drive motor (701) is connected to the top of a screw rod (707); fish collecting ports (705) at different elevations are arranged on the first square tube (7). ), when the fish collecting box (706) stays at the position of the fish collecting port (705), the fish collecting port (705) is communicated with the inlet of the fish collecting box (706); a fish outlet (709) is provided at the upper part of the first square tube body (7), when the fish collecting box (706) stays at the position of the fish outlet (709), the outlet of the fish collecting box (706) is communicated with the fish outlet (709); a slide plate (704) is hinged at the position of the fish outlet (709), and the slide plate (704) can be overlapped onto the temporary storage tray (12).
3. A fish passing system with both autonomous and assisted fish passing functions as claimed in claim 2, characterized in that: A first hoist (702) is arranged on the top of the first square tube (7), and a first traction rope (703) is wound on the first hoist (702). The first traction rope (703) is connected to the slide plate (704) and is used to drive the slide plate (704) to rotate around a hinge point.
4. A fish passing system with both autonomous and assisted fish passing functions as claimed in claim 2, characterized in that: The fish collecting opening (705) is in the shape of a trumpet, and a fish attracting device is arranged on the fish collecting opening (705).
5. The fish passing system with both autonomous and assisted fish passing functions as claimed in claim 1, characterized in that: The driving mechanism comprises a walkway plate (6), a second hoist (4), and a second steel wire rope (5) wound on the second hoist (4); the walkway plate (6) is fixedly mounted on the upper part of the pier (1), the second hoist (4) is mounted on the cantilever end of the walkway plate (6), and the second steel wire rope (5) is connected to the fishway assembly (100).
6. A fish passing system with both autonomous and assisted fish passing functions as claimed in claim 1, characterized in that: A fixed pier (2) is arranged on the top of the pier column (1); and a plurality of cables (3) are arranged between the fixed pier (2) and the walkway plate (6).
7. A fish passing system with both autonomous and assisted fish passing functions as claimed in claim 1, characterized in that: The hinge structure comprises a first hinge plate (14a), a second hinge plate (14b) and a pin shaft (13); the first hinge plate (14a) is fixed on the outer peripheral surface of the temporary storage disk (12); the second hinge plate (14b) is welded to the second square tube body (8); the first hinge plate (14a) and the second hinge plate (14b) are connected via the pin shaft (13).
8. The fish passing system with both autonomous and assisted fish passing functions as claimed in claim 1, characterized in that: A plurality of diagonal bracing rods (16) are arranged between the pier column (1) and the base (9).
9. The fish passing system with both autonomous and assisted fish passing functions as claimed in claim 1, characterized in that: An inlet gate (802) is provided at the fish inlet end of the second square tube body (8).
10. The fish passing system with both autonomous and assisted fish passing functions as claimed in claim 1, characterized in that: It also includes a transfer vehicle (11), and the discharge pipeline (10) is connected to the transfer vehicle (11).
Citation Information
Patent Citations
Fish passage based on space-time transformation of fish migration habits
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