Fishway fish outlet suitable for large water level variable amplitude

Abstract

The utility model relates to the technical field of fishways, and discloses a fishway fish outlet suitable for large water level amplitude variation, which comprises a plurality of groups of fishways, each fishway is provided with a concentrated rotary turning line type and an independent single line type which are arranged in parallel, the fishway with the concentrated rotary turning line type is provided with a fish outlet a, and the fishway with the independent single line type is provided with a fish outlet b; a fish inlet and a fish outlet are arranged at the two ends of the fishway respectively, a baffle assembly is further arranged in the fishway and comprises a baffle body capable of being elastically bent and an execution unit for driving the baffle body to be bent, and the baffle body can be bent towards the two sides. The baffle assembly can be bent, impurities attached to the baffle assembly are impacted to fall off through impact of water flow in the fishway, the fishway is prevented from being blocked, the fishway can be kept in a smooth state when used, and fish passing is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of fishway technology, specifically to a fishway outlet suitable for large water level fluctuations. Background Technology

[0002] Fishways are channels for fish migration, typically constructed as artificial channels on sluice gates or dams to protect the fish's migratory habits. The design of fishways primarily considers the fish's upstream swimming tendency. Downstream of a sluice gate or dam, fish often enter the fishway by the attraction of the water flow. Within the fishway, the fish use their own strength to overcome the current and swim upstream.

[0003] When water levels fluctuate, algae or debris can enter the fishway. This debris can be obstructed by the baffles installed in the fishway, eventually causing blockage and affecting fish migration. To address this issue, we propose a fishway outlet design suitable for large water level fluctuations. Utility Model Content

[0004] The purpose of this invention is to provide a fish passage outlet suitable for large water level fluctuations, thereby solving the above-mentioned technical problems.

[0005] This utility model provides the following technical solution:

[0006] A fishway outlet suitable for large water level fluctuations includes: multiple sets of fishways, wherein the fishways have a centralized turning-turn type and an independent single-line type arranged in parallel, the centralized turning-turn type fishway has an outlet a, and the independent single-line type fishway has an outlet b.

[0007] The fishway has a fish inlet and a fish outlet at both ends. A baffle assembly is also provided inside the fishway. The baffle assembly includes a flexible baffle body and an execution unit that drives the baffle body to bend. The baffle body can bend to both sides, and the water flow in the fishway impacts and cleans the debris attached to the bent baffle body.

[0008] Furthermore, a rest area is also provided at the turning point of the centralized turning-type fishway.

[0009] Furthermore, both fish outlet a and fish outlet b are constructed using cast-in-place reinforced concrete structures.

[0010] Furthermore, the execution unit is a cylinder.

[0011] Furthermore, a fixed seat a for movable installation of the cylinder and a fixed seat b for movable installation of the baffle body are respectively fixedly installed on the inner wall of the fish passage. A connecting seat is also fixedly installed on the front side wall of the baffle body, and the telescopic shaft of the cylinder is movably connected to the connecting seat.

[0012] Furthermore, a limiting block a and a limiting block b are fixedly installed on the inner wall of the fish passage. The limiting block a and the limiting block b are located on both sides of the baffle body so that the baffle body can bend elastically.

[0013] Furthermore, the limiting block b is trapezoidal.

[0014] Furthermore, longitudinal reinforcing ribs are also provided on both sides of the baffle body.

[0015] Furthermore, the baffle body is made of rubber-nylon composite material.

[0016] Furthermore, the surface of the baffle body is also coated with a Teflon coating.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] In this invention, a baffle assembly is installed in the fishway. The baffle assembly can be bent, and the water flow in the fishway impacts and knocks off the debris attached to the baffle assembly, preventing the fishway from becoming blocked. This ensures that the fishway remains unobstructed during use, which is beneficial for fish passage. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a top-view schematic diagram of the fishway structure;

[0021] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle;

[0022] Figure 4 This is a schematic diagram of the cross-sectional structure of the fishway;

[0023] Figure 5 for Figure 4 Enlarged structural diagram at point B.

[0024] In the diagram: 100, fishway; 200, baffle assembly; 300, rest area; 400, fish outlet a; 500, fish outlet b;

[0025] Fish exit point; 120, fish entry point;

[0026] 201. Baffle body; 202. Reinforcing rib; 203. Cylinder; 204. Connecting seat; 205. Fixed seat a; 206. Limiting block a; 207. Limiting block b; 208. Fixed seat b. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figure 1 As shown, this utility model provides a technical solution: a fish passage outlet suitable for large water level fluctuations, comprising multiple sets of fish passages 100. The fish passages 100 have parallel arranged centralized turning-type and independent single-line types. The turning point of the centralized turning-type channel is also provided with a rest area 300. The centralized turning-type fish passage 100 has a fish outlet a400, while the independent single-line type fish passage 100 has a fish outlet b500. Both fish outlets a400 and b500 are made of cast-in-place reinforced concrete. Both fish outlets are equipped with gates for opening and closing. The corresponding gates are opened manually at different water levels, so that the conditions of the fish outlets are basically consistent, thereby ensuring that the fish passage needs are fully met when the water level fluctuates greatly.

[0029] Among them, such as Figure 2-5 As shown, the fishway 100 also has a fish inlet 120 and a fish outlet 110 at both ends. Fish enter the fishway 100 through the fish inlet 120 and swim out through the fish outlet 110. In addition, in order to reduce the water flow resistance in the fishway 100, a baffle assembly 200 is provided on the inner side wall of the fishway 100 to reduce the resistance of the water flow to the migration of fish.

[0030] Among them, such as Figure 3 and Figure 5 As shown, the baffle assembly 200 includes a baffle body 201 and a cylinder 203 for driving the baffle body 201 to rotate. A connecting seat 204 is fixedly installed on the front side wall of the baffle body 201. The telescopic shaft of the cylinder 203 is movably connected to the connecting seat 204. A fixing seat a205 is fixedly installed on the inner wall of the fish passage 100. The tail of the cylinder 203 is movably connected to the fixing seat a205. In addition, a fixing seat b208 is also fixedly installed on the inner wall of the fish passage 100. The baffle body 201 is also movably installed... Placed on the fixed base b208, the baffle body 201 can rotate under the extension and retraction of the cylinder 203's telescopic shaft. In use, when debris is entangled on the baffle body 201, blocking the channel formed between the baffle body 201 and the inner wall of the fish passage 100, the cylinder 203 can be activated. The telescopic shaft of the cylinder 203 drives the baffle body 201 to rotate to the right, thus widening the channel between the baffle body 201 and the inner wall of the fish passage 100. Furthermore, the baffle body 201 is made of elastic material and can bend elastically. Figure 5As shown, a limiting block b207 is provided on one side of the baffle body 201. The limiting block b207 is trapezoidal. After the telescopic shaft of the cylinder 203 drives the baffle body 201 to rotate to a certain angle, the limiting block b207 blocks the baffle body 201 so that it cannot continue to rotate. The baffle body 201 undergoes elastic bending, and the impact force of the river water carries away large debris on the baffle body 201, preventing the fish passage 100 from being blocked.

[0031] Among them, such as Figure 5 As shown, the baffle assembly 200 also includes a limiting block a206, which is located on the other side of the baffle body 201. In use, the extension shaft of the cylinder 203 drives the baffle body 201 to rotate to the left, causing the baffle body 201 to bend to the left. At this time, the bent part of the baffle body 201 is also impacted by the water flow, producing a good impact effect. It is also used to clean the debris attached to the baffle body 201 and ensure the cleanliness of the fish passage 100.

[0032] During the above process, the change in angle after the elastic bending of the baffle body 201 causes the debris to lose its mechanical gripping force with the surface of the baffle body 201 under the impact of the water flow, thus ensuring that the debris is cleaned up.

[0033] In addition, considering that cylinder 203 is in water, an underwater cylinder unit with better sealing can be used, which is already widely used in the prior art. The above cleaning process can be carried out when the fish are not in the fish passage 100 to prevent disruption to the normal fish passage requirements.

[0034] Among them, such as Figure 5 As shown, reinforcing ribs 202 are also provided on the outer walls of both sides of the baffle body 201 to prevent longitudinal deformation of the baffle body 201.

[0035] The baffle body 201 itself can be made of rubber-nylon composite material, and a Teflon coating can be applied to the surface of the baffle body 201 to ensure the smoothness of the surface of the baffle body 201.

[0036] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A fish passage outlet suitable for large water level fluctuations, characterized in that, include: Multiple sets of fish passages (100), the fish passages (100) having a parallel arranged concentrated turning line type and an independent single line type, the fish passage (100) of the concentrated turning line type has a fish outlet a (400), and the fish passage (100) of the independent single line type has a fish outlet b (500). The fish passage (100) is provided with a fish inlet (120) and a fish outlet (110) at both ends. The fish passage (100) is also provided with a baffle assembly (200). The baffle assembly (200) includes a flexible baffle body (201) and an execution unit that drives the baffle body (201) to bend. The baffle body (201) can bend to both sides. The water flow in the fish passage (100) impacts and cleans the debris attached to the bent baffle body (201).

2. The fish passage outlet suitable for large water level fluctuations according to claim 1, characterized in that: The turning point of the centralized turning-type fishway (100) is also equipped with a rest area (300).

3. The fish passage outlet suitable for large water level fluctuations according to claim 1, characterized in that: Both the fish outlet a (400) and the fish outlet b (500) are constructed using cast-in-place reinforced concrete.

4. The fish passage outlet suitable for large water level fluctuations according to claim 1, characterized in that: The execution unit is a cylinder (203).

5. The fish passage outlet suitable for large water level fluctuations according to claim 4, characterized in that: The inner wall of the fish passage (100) is fixedly provided with a fixed seat a (205) for the movable installation of the cylinder (203) and a fixed seat b (208) for the movable installation of the baffle body (201). The front side wall of the baffle body (201) is also fixedly provided with a connecting seat (204), and the telescopic shaft of the cylinder (203) is movably connected to the connecting seat (204).

6. The fish passage outlet suitable for large water level fluctuations according to claim 1, characterized in that: Limiting block a (206) and limiting block b (207) are also fixedly installed on the inner wall of the fish passage (100). The limiting block a (206) and the limiting block b (207) are located on both sides of the baffle body (201) so that the baffle body (201) can bend elastically.

7. The fish passage outlet suitable for large water level fluctuations according to claim 6, characterized in that: The limiting block b (207) is trapezoidal.

8. The fish passage outlet suitable for large water level fluctuations according to claim 1, characterized in that: The baffle body (201) is also provided with longitudinal reinforcing ribs (202) on both sides.

9. The fish passage outlet suitable for large water level fluctuations according to claim 1, characterized in that: The baffle body (201) is made of rubber-nylon composite material.

10. The fish passage outlet suitable for large water level fluctuations according to claim 9, characterized in that: The surface of the baffle body (201) is also coated with a Teflon coating.

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