Fishway for dam
By designing the fish path for dams and using the cooperation of fish lures and gates, fish are guided to lure from downstream to upstream, solving the problem of the existing fish path design that causes fish to pass less through the number and consume a lot of physical strength, and achieving the effect of increasing the number of fish and reducing physical strength.
Patent Information
- Application Number
- CN202421469096.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-26
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-06-26
AI Technical Summary
The existing fish track design leads to a small number of fish passing through and consumes a lot of physical energy, affecting subsequent activities after migrating to the upstream.
A fish path for dams is designed, including outer transverse water channels, inner transverse water channels and vertical water channels. Through the cooperation of fish lure devices and gates, the water level rise and water injection are used to guide fish to lure from downstream to upstream, reducing the physical consumption of fish swimming.
It effectively increases the number of fish passing through and reduces the physical consumption of swimming, so as to facilitate the subsequent activities of fish after they migrate to the upstream.
Smart Images
Figure CN222700923U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of fishways, in particular to a fishway for dams. Background Art
[0002] A fishway is a channel for fish migration. It is a remedial measure taken when human activities destroy the channel for fish migration. Generally, artificial water troughs are built on sluices or dams to protect the habits of fish.
[0003] Among them, the existing fishways utilize the habit of fish to swim upstream. Downstream of the dam, fish often rely on the attraction of the water flow to enter the fishway. In the fishway, fish need to rely on their own strength to overcome the flow rate and swim upstream. Downstream fish can swim downstream through the fishway. Since fish often gather near the dam, and the fishway is set on both sides of the dam, the number of fish passing through is often small and many fish consume a lot of energy when passing through, which is not conducive to subsequent activities after migrating upstream. Utility Model Content
[0004] The utility model provides a fishway for a dam, which is used to solve the defects in the prior art.
[0005] The utility model is realized through the following technical solutions:
[0006] A fishway for a dam comprises an outer transverse waterway communicating with a downstream and an inner transverse waterway communicating with an upstream, the inner transverse waterway and the outer transverse waterway being connected via a vertical waterway, the inner transverse waterway and the outer transverse waterway being blocked by an inner gate and an outer gate respectively; a first fish attractant is arranged in the vertical waterway, the lifting and lowering of the fish attractant is controlled by a lifting mechanism, a suspension rod is also arranged on the top surface of the dam, the outer end of the suspension rod faces the upstream direction and a second fish attractant is hung on the suspension rod.
[0007] When the present application is in use, the outer gate is first opened, the water in the outer horizontal waterway is level with the downstream water, then the first fish attractant is opened and lowered into the water, after luring for a period of time, the outer gate is closed and the inner gate is opened, so that the upstream water enters the vertical waterway through the inner horizontal waterway and causes the water level of the vertical waterway to rise, and after rising to the same level as the upstream water level, the first fish attractant is moved by the lifting mechanism to lure the fish to rise to the inner horizontal waterway, then the first fish attractant is closed and the second fish attractant is opened to lure the fish upstream, then the inner gate is closed and the outer gate is opened to release the water in the vertical waterway, and the cycle is repeated in sequence, which can not only lure the fish located near the dam, but also save the energy consumed by the fish by utilizing the rising water level, and facilitate their subsequent activities after migrating upstream.
[0008] Preferably, the inner gate and the outer gate both include a blocking gate and a driving mechanism for driving the blocking gate to rise and fall, the inner walls of the top surfaces of the inner transverse waterway and the outer transverse waterway are provided with vertical slide grooves upward, the driving mechanism includes a sliding plate that slides in the corresponding vertical slide groove and a first driving motor that is fixedly arranged on the inner wall of the top surface of the vertical slide groove, the rotating shaft of the first driving motor is coaxially fixedly connected with a screw rod, the screw rod passes through the corresponding sliding plate and is threadedly engaged with the sliding plate, and the sliding plate is fixedly connected to the upper part of the back of the corresponding blocking plate. When the first driving motor is started, the rotation of the rotating shaft of the first driving motor drives the rotation of the corresponding screw rod, and the rotation of the screw rod drives the sliding plate to move up and down, thereby driving the closing and opening of the corresponding inner gate and the outer gate.
[0009] Preferably, the inner walls of the bottom surfaces of the outer transverse water channel and the inner transverse water channel are provided with slots downward, and the lower part of the blocking plate is inserted into the corresponding slots. Thus, a better sealing effect of the inner transverse water channel and the outer transverse water channel can be achieved.
[0010] Preferably, the lifting mechanism comprises a rotating motor fixedly mounted on the inner wall of the top surface of the vertical waterway, the rotating shaft of the rotating motor is coaxially fixedly connected with a rotating rod, two fixed plates are also fixedly mounted on the inner wall of the top surface of the vertical waterway, a winding roller is arranged between the fixed plates, the rotating shaft of the winding roller passes through the fixed plates and is rotatably connected with the fixed plates through bearings, the rotating rod is coaxially fixedly connected with the rotating shaft on one side of the winding roller, a hanging line is wound around the winding roller, and a first fish attractant is hung on the hanging line. The rotation of the rotating shaft of the rotating motor drives the rotating rod to rotate along its axis, thereby driving the winding roller to rotate, realizing winding and releasing of the line, thereby realizing the lifting and lowering of the first fish attractant.
[0011] Preferably, a transverse chute is provided on the top surface of the dam, a sliding plate is slidably fitted in the transverse chute, a screw hole is provided on the sliding plate, a screw rod is fitted in the inner thread of the screw hole, a second drive motor is fixedly provided in the transverse chute, the rotating shaft of the second drive motor is coaxially fixedly connected with the screw rod, the suspension rod is vertically connected with the sliding plate, and when the moving plate is located on the right side of the transverse chute, the outer end of the suspension rod is located at the outlet of the inner transverse waterway. The second drive motor is started, and the rotation of the rotating shaft of the second drive motor drives the rotation of the screw rod, and the rotation of the screw rod drives the rotation of the moving plate, and then drives the movement of the suspension rod, and the movement of the suspension rod drives the movement of the second fish attractant, so that fish can be attracted to the deep water upstream.
[0012] Preferably, a sealing box is fixedly provided on the inner wall of the top surface of the vertical slideway, and the rotating motor is fixedly provided in the sealing box. The rotating shaft of the rotating motor passes through the sealing box and is rotatably connected to the sealing box at the passing point through a sealing bearing. The sealing box can play a waterproof role, thereby protecting the rotating motor.
[0013] The beneficial effects of the utility model are as follows: the use of the present application can utilize the cooperation of the first fish attractant and the second fish attractant to attract fish from the downstream dam to the upstream, and at the same time, water injection can be used to reduce the physical energy consumed by the fish when swimming upstream, thereby facilitating subsequent activities after the fish migrate to the upstream. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the embodiments of the utility model 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 some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0015] Figure 1 It is a structural schematic diagram of the utility model;
[0016] Figure 2 It is a schematic diagram of the coordination between the rotating motor and the winding roller.
[0017] As shown in the figure:
[0018] 1. outer transverse waterway, 2. inner transverse waterway, 3. inner gate, 4. outer gate, 5. vertical waterway, 6. first fish attractant, 7. suspension rod, 8. second fish attractant, 9. card slot, 10. rotating motor, 11. winding roller, 12. sliding plate, 13. screw, 14. sealing box, 15. second driving motor. DETAILED DESCRIPTION
[0019] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] A fishway for dams, such as Figure 1 and Figure 2 As shown. It includes an outer transverse waterway 1 communicating with the downstream and an inner transverse waterway 2 communicating with the upstream. The inner transverse waterway 2 and the outer transverse waterway 1 are connected through a vertical waterway 5. Specifically, the inner transverse waterway 2 is the same as the upper part of the vertical waterway 5, and the outer transverse waterway 1 is the same as the lower part of the other side of the vertical waterway 5. The inner transverse waterway 2 and the outer transverse waterway 1 are blocked by an inner gate 3 and an outer gate 4 respectively. A first fish attractant 6 is arranged in the vertical waterway 5, and the fish attractant is raised and lowered by a lifting mechanism. A suspension rod 7 is also arranged on the top surface of the dam. The outer end of the suspension rod 7 faces the upstream direction and is suspended with a second fish attractant 8.
[0021] Both the inner gate 3 and the outer gate 4 include a blocking door and a driving mechanism for driving the blocking door to rise and fall. The inner walls of the top surfaces of the inner transverse waterway 2 and the outer transverse waterway 1 are provided with vertical slide grooves upward. The driving mechanism includes a sliding plate 12 that slides in the corresponding vertical slide groove and a first driving motor that is fixedly arranged on the inner wall of the top surface of the vertical slide groove. The rotating shaft of the first driving motor is coaxially fixedly connected with a screw rod, which passes through the corresponding sliding plate 12 and is threadedly engaged with the sliding plate 12. The sliding plate 12 is fixedly connected to the upper part of the back side of the corresponding blocking plate.
[0022] When the present application is used, the outer gate 4 is first opened, the water in the outer transverse waterway 1 is level with the downstream water, and then the first fish attractant 6 is opened and lowered into the water. After luring for a period of time, the outer gate 4 is closed and the inner gate is opened, so that the upstream water enters the vertical waterway 5 through the inner transverse waterway 2 and the water level of the vertical waterway 5 rises. After rising to the same level as the upstream water level, the first fish attractant 6 is moved by the lifting mechanism to lure the fish to rise to the inner transverse waterway 2, and then the first fish attractant 6 is closed and the second fish attractant 8 is opened to lure the fish to the upstream, and then the inner gate 3 is closed and the outer gate 4 is opened to release the water in the vertical waterway 5, and the cycle is repeated in sequence, which can not only lure the fish near the dam, but also save the energy consumed by the fish by utilizing the rising water level, and facilitate the subsequent activities after the fish migrate to the upstream.
[0023] Among them, the inner gate 3 and the outer gate 4 are started by starting the first drive motor. The rotation of the first drive motor shaft drives the rotation of the corresponding screw rod. The rotation of the screw rod drives the sliding plate 12 to move up and down, thereby driving the corresponding inner gate 3 and the outer gate 4 to close and open.
[0024] The inner walls of the bottom surfaces of the outer transverse water channel 1 and the inner transverse water channel 2 are provided with slots 9 downwardly, and the lower part of the blocking plate is inserted into the corresponding slots 9. Thus, a better sealing effect of the inner transverse water channel 2 and the outer transverse water channel 1 can be achieved.
[0025] The lifting mechanism includes a rotating motor 10 fixedly arranged on the inner wall of the top surface of the vertical waterway 5, the rotating shaft of the rotating motor 10 is coaxially fixedly connected with a rotating rod, and two fixed plates are also fixedly arranged on the inner wall of the top surface of the vertical waterway 5, and a winding roller 11 is arranged between the fixed plates. The rotating shaft of the winding roller 11 passes through the fixed plates and is rotatably connected with the fixed plates through bearings. The rotating rod is coaxially fixedly connected with the rotating shaft of one side of the winding roller 11, and a suspension line is wound on the winding roller 11, and the first fish attractant 6 is hung on the suspension line. The rotation of the rotating shaft of the rotating motor 10 drives the rotating rod to rotate along its axis, and then drives the winding roller 11 to rotate, so as to realize winding and releasing, and then realize the lifting and lowering of the first fish attractant 6.
[0026] A transverse chute is provided on the top surface of the dam, and a sliding plate 12 is slidably matched in the transverse chute. A screw hole is provided on the sliding plate 12, and a screw rod 13 is threadedly matched in the screw hole. A second drive motor 15 is fixedly provided in the transverse chute, and the rotating shaft of the second drive motor 15 is coaxially fixedly connected with the screw rod. The suspension rod 7 is vertically connected with the sliding plate 12. When the moving plate is located on the right side of the transverse chute, the outer end of the suspension rod 7 is located at the outlet of the inner transverse waterway 2. The second drive motor 15 is started, and the rotation of the rotating shaft of the second drive motor 15 drives the rotation of the screw rod 13, and the rotation of the screw rod 13 drives the rotation of the moving plate, thereby driving the movement of the suspension rod 7, and the movement of the suspension rod 7 drives the movement of the second fish attractant 8, so that fish can be attracted to the deep water upstream.
[0027] A sealing box 14 is fixedly installed in the vertical slide and the vertical slide groove. The rotating motor 10 and the first drive motor are fixedly installed in the sealing box 14. The rotating shafts of the rotating motor 10 and the drive motor pass through the sealing box 14 and are rotatably connected to the sealing box 14 through a sealed bearing. The sealing box 14 can play a waterproof role, thereby protecting the rotating motor 10 and the drive motor.
[0028] The use of the present application can utilize the cooperation of the first fish attractant 6 and the second fish attractant 8 to attract fish from the downstream dam to the upstream, and at the same time reduce the physical energy consumed by the fish when swimming upstream by injecting water, thereby facilitating the subsequent activities of the fish after migrating upstream.
[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.
Claims
1. A fishway for a dam, characterized in that: It comprises an outer transverse waterway communicating with the downstream and an inner transverse waterway communicating with the upstream, the inner transverse waterway and the outer transverse waterway are connected via a vertical waterway, the inner transverse waterway and the outer transverse waterway are blocked by an inner gate and an outer gate respectively; a first fish attractant is arranged in the vertical waterway, the lifting and lowering of the fish attractant is controlled by a lifting mechanism, a suspension rod is also arranged on the top surface of the dam, the outer end of the suspension rod faces the upstream direction and a second fish attractant is hung thereon.
2. The dam fishway according to claim 1, characterized in that: The inner gate and the outer gate both include a blocking door and a driving mechanism for driving the blocking door to rise and fall. The inner walls of the top surfaces of the inner transverse waterway and the outer transverse waterway are provided with vertical slide grooves upward. The driving mechanism includes a sliding plate that slides in the corresponding vertical slide groove and a first driving motor that is fixedly arranged on the inner wall of the top surface of the vertical slide groove. The rotating shaft of the first driving motor is coaxially fixedly connected with a screw rod, which passes through the corresponding sliding plate and is threadedly engaged with the sliding plate. The sliding plate is fixedly connected to the upper part of the back side of the corresponding blocking plate.
3. The dam fishway according to claim 2, characterized in that: The inner walls of the bottom surfaces of the outer transverse water channel and the inner transverse water channel are both downwardly provided with card slots, and the lower parts of the blocking plates are inserted into the corresponding card slots.
4. The dam fishway according to claim 3, characterized in that: The lifting mechanism includes a rotating motor fixedly arranged on the inner wall of the top surface of the vertical waterway, the rotating shaft of the rotating motor is coaxially fixedly connected with a rotating rod, two fixed plates are also fixedly arranged on the inner wall of the top surface of the vertical waterway, a winding roller is arranged between the fixed plates, the rotating shaft of the winding roller passes through the fixed plates and is rotatably connected to the fixed plates through bearings, the rotating rod is coaxially fixedly connected with the rotating shaft on one side of the winding roller, a suspension line is wound around the winding roller, and a first fish attractant is hung on the suspension line.
5. The dam fishway according to claim 4, characterized in that: A transverse slide groove is opened horizontally on the top surface of the dam, a sliding plate is slidably matched in the transverse slide groove, a screw hole is opened on the sliding plate, a screw rod is matched with the inner thread of the screw hole, a second drive motor is fixedly arranged in the transverse slide groove, the rotating shaft of the second drive motor is coaxially fixedly connected with the screw rod, the suspension rod is vertically connected to the sliding plate, and when the movable plate is located on the right side of the transverse slide groove, the outer end of the suspension rod is located at the water outlet of the inner transverse waterway.
6. The dam fishway according to claim 5, characterized in that: A sealing box is fixedly arranged on the inner wall of the top surface of the vertical slideway, and the rotating motor is fixedly arranged in the sealing box. The rotating shaft of the rotating motor passes through the sealing box and the passing point is rotationally connected with the sealing box through a sealing bearing.