Fish concentrated transportation escape prevention blocking net system

Abstract

The invention belongs to the technical field of aquatic product ecological protection, and particularly discloses a concentrated transportation fish escape prevention blocking net system which comprises a concentrated transportation channel, a blocking net structure is arranged in the concentrated transportation channel and comprises blocking net branch pipes arranged on the two sides of the concentrated transportation channel, an escape prevention assembly is arranged between the blocking net branch pipes, and the escape prevention assembly comprises an escape prevention blocking net. The anti-escape blocking net is connected with the blocking net branch pipe through the rhombic telescopic frame; a flexible net plate matched with the concentrated transportation channel is arranged on the side, away from the rhombic telescopic frame, of the blocking net branch pipe. The rhombic telescopic frame of the blocking net structure can be telescopically adjusted according to the difference of terrains, concentrated and transported fishes can be prevented from escaping under different terrains, the escape preventing assembly can change according to the change of the water level, the fishes in the upstream water body can be effectively prevented from flowing down, and the purpose of preventing the concentrated and transported fishes from escaping is achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of aquatic ecological protection, and in particular relates to a fish collection and transportation anti-escape interception net system. Background Art

[0002] A fish collection and transportation platform is a facility used to transport fish across dams. It is mainly used to help fish pass through the dam smoothly and reduce the impact of dam construction on fish migration. For small and medium-sized water conservancy projects and other occasions, due to cost and site limitations, large fish-passing facilities are expensive and complex in structure, making them difficult to install and use in small and medium-sized water conservancy projects. Therefore, channels will be used to achieve the collection and transportation of fish in upstream and downstream water bodies, and nets will be installed in the channels to prevent the collected fish in the upstream from escaping into the downstream water body.

[0003] Fixed nets are mostly used in existing collection and transportation channels to prevent the escape of collected fish. However, due to the obvious differences in topography and landforms in small and medium-sized water conservancy projects and other occasions, the width and depth of collection and transportation channels in small and medium-sized water conservancy projects and other occasions are significantly different. The existing fixed nets need to be spliced ​​or cut to meet the needs of collection and transportation channels of different widths and depths. However, the splicing or cutting process is not only cumbersome to operate, but the nets are also prone to tearing along the splicing when used for a long time, resulting in the failure of the net function and the escape of collected fish.

[0004] In addition, due to the existence of flood season and dry season, the water level in the collection and transportation channel will change greatly. During the flood season, the water level in the collection and transportation channel will exceed the fixed barrier net, and the collected fish will easily escape along the collection and transportation channel. During the dry season, the fixed barrier net is much higher than the water surface, and the downstream fish cannot flow upstream along the collection and transportation channel to the upstream water body, affecting the normal use of the collection and transportation channel. Summary of the Invention

[0005] In order to solve the above problems, a fish collection and transportation anti-escape net system is provided which can adapt to water level changes and terrain differences.

[0006] Based on the above objectives, the present invention is achieved through the following technical solutions: A fish collection and transportation anti-escape blocking net system includes a collection and transportation channel, a blocking net structure is provided in the collection and transportation channel, the blocking net structure includes blocking net branches arranged on both sides of the collection and transportation channel, an anti-escape component is provided between the blocking net branches, the anti-escape component includes an anti-escape blocking net, and the anti-escape blocking net is connected to the blocking net branches through a diamond-shaped telescopic frame; a flexible mesh plate that cooperates with the collection and transportation channel is provided on the side of the blocking net branch away from the diamond-shaped telescopic frame.

[0007] Preferably, an adjusting link and a blocking link are respectively provided at the left and right ends of the diamond-shaped telescopic frame, and an adjusting spring connected to the blocking link is provided on the adjusting link.

[0008] Preferably, at least two blocking support rods connected to the end of the anti-escape blocking net are provided on the side of the blocking connecting rod, and the blocking support rods are provided with blocking concave wheels, which cooperate with the blocking chute provided on the side of the blocking connecting rod.

[0009] Preferably, the bottom end of the anti-escape blocking net is evenly distributed with clearance-fitting counterweight blocks, and the top end is provided with an induction float plate that cooperates with the blocking net connecting rod.

[0010] Preferably, adjustment ring grooves are symmetrically arranged on the branch pipe of the blocking net, and adjustment rings are arranged in the adjustment ring grooves. The adjustment rings are connected by an adjustment sleeve with a closed bottom end. The adjustment sleeve is sleeved on the adjustment connecting rod, and a side adjustment groove is provided on the side of the adjustment sleeve to match the adjustment connecting rod.

[0011] Preferably, the induction float plate includes induction floats arranged on both sides of the top of the anti-escape net, an induction rotating shaft is provided on the side of the induction float away from the diamond-shaped telescopic frame, a movable float is provided on the induction rotating shaft and is connected to the induction rotating shaft on the adjacent induction float, a return spring is provided in the movable float and cooperates with the induction rotating shaft, and a smooth coating is provided on the movable float.

[0012] Preferably, the induction float also includes at least two arc-shaped floats that are rotatably connected in turn through the float shaft, and the arc-shaped floats are connected by a flexible connecting plate, and the arc-shaped float at one end is connected to the induction floats on both sides; a counterweight plate is provided on the bottom surface of the arc-shaped float; the reset spring allows the movable float to rotate only to the side away from the arc-shaped float, which can prevent the movable float from reversing and prevent fish in the upstream water body from escaping.

[0013] Preferably, an induction groove is provided on the arc-shaped floating plate, and flexible anti-skid particles are provided in the induction groove; the weight of the counterweight plate gradually increases along the induction buoy toward the side of the arc-shaped floating plate; and the arc-shaped floating plate is a flexible floating plate.

[0014] Preferably, the diamond-shaped telescopic frame includes a plurality of diamond-shaped telescopic components connected in sequence, and the diamond-shaped telescopic components include two telescopic connecting rods rotatably connected by a telescopic shaft, and the telescopic shaft is set at the center of the telescopic connecting rod; both ends of the telescopic connecting rod are provided with connecting shafts rotatably connected to adjacent diamond-shaped telescopic components.

[0015] Preferably, a flexible protective net is provided in the gap of the diamond-shaped telescopic frame; and a flexible anti-collision pad is covered on the telescopic connecting rod.

[0016] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention adapts to water level changes and terrain differences by installing a blocking structure in the collection and transportation channel, which can effectively prevent fish from escaping from upstream to downstream, thereby achieving the purpose of collecting and transporting fish in upstream and downstream water bodies; the diamond-shaped telescopic frame of the blocking structure of the present invention can be telescoped and adjusted according to the differences in terrain, thereby preventing the escape of collected and transported fish under different terrains; the anti-escape component can change according to the changes in water level, thereby effectively preventing fish in the upstream water body from flowing downstream, thereby achieving the purpose of preventing the escape of collected and transported fish, and at the same time, it is convenient to induce fish in the downstream water body to flow back to the upstream water body, thereby achieving the purpose of collecting and transporting fish in the upstream and downstream water bodies.

[0017] (2) The diamond-shaped telescopic frame of the present invention can drive the anti-escape component to leave the water surface along the branch pipe of the net as needed. When the anti-escape net is damaged or needs to be replaced, there is no need for staff to go into the water. By lifting the diamond-shaped telescopic frame, the anti-escape net in the anti-escape component can be taken out to complete the replacement of the anti-escape net, effectively reducing the replacement time of the anti-escape net, improving the replacement efficiency, and reducing the replacement window period.

[0018] (3) The induction float of the present invention can always float on the water surface in accordance with the change of water level, driving the change of the anti-escape net, and preventing the fish in the upstream water level from flowing downstream. At the same time, the induction float floating on the water surface can guide the downstream fish, making it convenient for the downstream fish to flow upstream to the upstream water body, thereby achieving the purpose of collecting and transporting fish in the upstream and downstream water bodies.

[0019] (4) The induction float induces and stimulates fish to swim upstream through the arc-shaped float. The induction groove facilitates fish to swim in the correct direction to the upstream water body, preventing fish from leaving the induction float. At the same time, there is more water in the induction groove, which facilitates fish to swim upstream. The weight of the counterweight plate gradually increases, so that the end of the arc-shaped float away from the induction buoy sinks into the water body, which facilitates fish to enter the induction groove of the arc-shaped float and enter the upstream water body through the gradually rising arc-shaped float. The movable float facilitates fish that have gone upstream to this point to quickly enter the upstream water body. At the same time, the movable float can block fish in the upstream water body from going downstream, thereby preventing the transported fish from escaping. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of the present invention in Example 1; Figure 2 is a schematic structural diagram of the diamond-shaped telescopic frame in Example 1; Figure 3 1 is a schematic structural diagram of the blocking connecting rod of Example 1; Figure 4 1 is a schematic structural diagram of the concave wheel of the blocking net in Example 1; Figure 5 1 is a schematic structural diagram of the adjusting connecting rod of Example 1; Figure 6Schematic diagram of the structure of the induction floating plate of Example 1; Figure 7 It is a structural diagram of the movable buoy of Example 1.

[0021] In the figure, 1. flexible mesh plate, 2. blocking branch pipe, 3. diamond-shaped telescopic frame, 4. induction float, 5. anti-escape blocking net, 6. adjusting connecting rod, 7. blocking connecting rod, 8. adjusting spring, 9. telescopic connecting rod, 10. telescopic rotating shaft, 11. connecting rotating shaft, 12. blocking support rod, 13. flexible protective net, 14. blocking slide, 15. blocking concave wheel, 16. adjusting ring groove, 17. adjusting sleeve, 18. adjusting sleeve, 19. side adjusting slide, 20. induction float, 21. movable float, 22. arc-shaped floating plate, 23. induction groove, 24. floating plate rotating shaft, 25. induction rotating shaft. DETAILED DESCRIPTION

[0022] The present invention is further described in detail below through specific examples, but the scope of the present invention is not limited thereto. Example

[0023] A fish collection and transportation anti-escape blocking system, the structure of which is as follows Figure 1-Figure 7 As shown, it includes a collection and transportation channel, and a blocking structure is provided in the collection and transportation channel. The blocking structure includes blocking branches 2 arranged on both sides of the collection and transportation channel, and an anti-escape component is provided between the blocking branch pipes 2. The anti-escape component includes an anti-escape net 5, and the anti-escape net 5 is connected to the blocking branch pipe 2 through a diamond-shaped telescopic frame 3; the side of the blocking branch pipe 2 away from the diamond-shaped telescopic frame 3 is provided with a flexible mesh plate 1 that cooperates with the collection and transportation channel.

[0024] The left and right ends of the diamond-shaped telescopic frame 3 are respectively provided with an adjustment link 6 and a blocking link 7. The adjustment link 6 is provided with an adjustment spring 8 connected to the blocking link 7. The side of the blocking link 7 is provided with at least two blocking rods 12 connected to the ends of the anti-escape blocking net 5. The blocking rods 12 are provided with a blocking concave wheel 15, which cooperates with the blocking chute 14 provided on the side of the blocking link 7.

[0025] Adjustment ring grooves 16 are symmetrically arranged on the barrier branch pipe 2, and an adjustment ring 17 is arranged in the adjustment ring groove 16. The adjustment rings 17 are connected by an adjustment sleeve 18 with a closed bottom end. The adjustment sleeve 18 is sleeved on the adjustment connecting rod 6, and a side adjustment slide groove 19 is provided on the side of the adjustment sleeve 18 to cooperate with the adjustment connecting rod 6.

[0026] The anti-escape barrier 5 is evenly distributed with counterweights with clearance fits at its bottom, and an induction float 4 is installed at its top, which mates with the barrier connecting rod 7. The induction float 4 includes induction buoys 20 arranged on either side of the top of the anti-escape barrier 5. The induction buoy 20 is equipped with an induction shaft 25 on the side away from the diamond-shaped telescopic frame 3. A movable buoy 21 is mounted on the induction shaft 25, connected to the induction shaft 25 on the adjacent induction buoy 20. The induction float 4 also includes at least two curved buoys 22, which are rotatably connected via a buoy shaft 24. The curved buoy 22 at one end is connected to the induction buoys 20 on either side. A counterweight plate is installed on the bottom surface of each curved buoy 22. The movable buoy 21 can only rotate toward the side away from the curved buoy 22. The curved buoy 22 is equipped with an induction groove 23 filled with flexible anti-skid particles. The weight of the counterweight plate gradually increases along the induction buoy 20 toward the curved buoy 22. The curved buoy 22 is flexible.

[0027] The diamond-shaped telescopic frame 3 comprises a plurality of sequentially connected diamond-shaped telescopic assemblies, each comprising two telescopic links 9 pivotally connected by a telescopic shaft 10, which is positioned at the center of each link. Connecting shafts 11, which pivotally connect to adjacent diamond-shaped telescopic assemblies, are located at each end of the link 9. A flexible protective net 13 is installed within the gaps of the diamond-shaped telescopic frame 3, and the telescopic links 9 are covered with flexible anti-collision pads.

[0028] When using this fish collection and transportation anti-escape net 5 system, an appropriate number of net structures can be selected according to the length and height of the collection and transportation channel, and the net branches 2 on both sides of the net structure can be fixed to the appropriate position and depth of the collection and transportation channel. The diamond-shaped telescopic frame 3 of the anti-escape component can expand or contract according to the width of the collection and transportation channel to meet the changes in the terrain differences of the collection and transportation channel; the flexible mesh plate 1 enables the net structure to completely block the collection and transportation channel, preventing upstream fish from flowing downstream along the water flow.

[0029] When the diamond-shaped telescopic frame 3 is extended or retracted, the diamond-shaped telescopic frame 3 is connected to the blocking branch pipe 2 through the adjusting connecting rod 6, and the telescopic connecting rod 9 moves along the telescopic rotating shaft 10 and the connecting rotating shaft 11 to realize the extension and contraction function. The flexible protective net 13 is made of a material with telescopic elasticity, which can be extended and deformed and contracted and reset according to the extension and retraction of the diamond-shaped telescopic frame 3, so as to prevent fish from escaping. Under the action of the adjusting spring 8, the diamond-shaped telescopic frame 3 can maintain a certain tightness to ensure that the anti-falling blocking net can always maintain a suitable intercepting state to meet the needs of fish anti-falling in the collection and transportation channel; in addition, the adjusting connecting rod 6 is connected to the adjusting ring groove 16 through the adjusting sleeve 18 and the adjusting ring 17, so that the diamond-shaped telescopic frame 3 can adjust the angle according to the needs, and the position of the anti-falling blocking net can be adjusted according to the needs of actual terrain to meet the needs of different terrain differences.

[0030] When the water level in the collection and transportation channel changes, the inductive float 4 on the anti-escape net 5 is always attached to the water surface, so that the net structure can always adapt to the changes in water level; under the action of the counterweight block, the anti-escape net 5 moves along the net chute 14 on the side of the net connecting rod 7 through the net concave wheel 15 on the net support rod 12, so that the bottom end of the anti-escape net 5 is always attached to the bottom of the collection and transportation channel, preventing fish from escaping along the bottom of the collection and transportation channel, and as the water level changes, the inductive float 4 always floats on the water surface, and the anti-escape net 5 moves in the net chute 14 through the net concave wheel 15. Under the action of the counterweight strips evenly distributed on the anti-escape net 5, the bottom end of the anti-escape net is folded, and the upper part of the anti-escape net is always in an extended state, which can prevent fish from escaping when the water level drops; the float plate rotating shaft 24 between the arc-shaped float plates 22 facilitates each arc-shaped float plate 22 to float on the water body, preventing the end of the inductive float plate 4 from leaving the water surface.

[0031] When the anti-escape net 5 is damaged or needs to be replaced, the staff uses tools to drag out the diamond telescopic frames 3 on both sides through the replacement rings on the diamond telescopic frames 3, and the adjustment links 6 of the diamond telescopic frames 3 move along the adjustment sleeves 18, and the telescopic links 9 and the flexible protective net 13 move along the side adjustment slide grooves 19, so that the anti-escape net 5 moves with the diamond telescopic frames 3, making it convenient for the diamond telescopic frames 3 to bring the anti-escape net 5 out of the water. During this process, the anti-escape net 5 in the anti-escape assembly can be taken out without the staff going into the water, thereby realizing the replacement of the anti-escape net 5, which can effectively reduce the replacement time of the anti-escape net 5, improve the replacement efficiency, and reduce the replacement window period.

[0032] The water flow from upstream flows downstream along the induction float 4, and the water flow forms a water flow of a certain depth in the induction groove 23 on the arc-shaped float 22, which induces and stimulates the fish in the downstream. The fish enter the arc-shaped float 22 along the induction groove 23. Under the continuous stimulation of the water flow in the induction groove 23, the fish gradually flow upstream to the induction groove 23 of the upper-level arc-shaped float 22. The fish flow upstream step by step and enter the induction groove 23 of the uppermost arc-shaped float 22. The fish continue to flow upstream. Under the action of the unidirectional rotating movable buoy 21, the movable buoy 21 can rotate along the induction shaft 25, which is convenient for the fish to enter the upstream water body through the movable buoy 21. When the fish in the upstream water body swim downstream, the unidirectional rotating movable buoy 21 is difficult to rotate downstream, blocking the fish in the upstream water body from swimming downstream, and cooperating with the anti-escaping net to prevent the collected and transported fish from escaping. Example

[0033] A fish collection and transportation anti-escape interception system is different from Example 1 in that: a plurality of induction grooves 23 of different sizes are provided on the arc-shaped floating plate 22. Example

[0034] A fish collection and transportation anti-escape interception system, which differs from Example 1 in that: a buoy spring that cooperates with the induced rotating shaft 25 is provided in the movable buoy 21, the buoy spring cooperates with the fan ring groove provided in the movable buoy 21, the buoy spring is connected to the end of the fan ring groove away from the buoy spring through the buoy spring, and a smooth coating is provided on the movable buoy 21, and the buoy spring can prevent the movable buoy 21 from rotating in the downstream direction. Example

[0035] A fish collection and transportation anti-escape interception system is different from Example 1 in that: an arc-shaped fish guide groove that matches the induction groove 23 is provided on the movable buoy 21.

[0036] The above description is only a preferred embodiment of the present invention, but is not limited to the above examples. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A fish collection and transportation anti-escape blocking system, including a collection and transportation channel, characterized in that: A blocking structure is provided in the collection and transportation channel, which includes blocking branches arranged on both sides of the collection and transportation channel, and an anti-escape component is provided between the blocking branches. The anti-escape component includes an anti-escape net, which is connected to the blocking branches through a diamond-shaped telescopic frame; a flexible mesh plate that cooperates with the collection and transportation channel is provided on the side of the blocking branch away from the diamond-shaped telescopic frame.

2. The fish collection and transportation anti-escape blocking net system according to claim 1 is characterized in that: The left and right ends of the diamond-shaped telescopic frame are respectively provided with an adjusting connecting rod and a blocking connecting rod, and the adjusting connecting rod is provided with an adjusting spring connected with the blocking connecting rod.

3. The fish collection and transportation anti-escape net system according to claim 2 is characterized in that: At least two blocking support rods connected to the end of the anti-escape blocking net are provided on the side of the blocking connecting rod, and the blocking support rods are provided with blocking concave wheels, which cooperate with the blocking chute arranged on the side of the blocking connecting rod.

4. The fish collection and transportation anti-escape net system according to claim 3 is characterized in that: The bottom end of the anti-escape blocking net is evenly distributed with counterweight blocks with clearance fit, and the top end is provided with an induction floating plate that matches the blocking net connecting rod.

5. The fish collection and transportation anti-escape blocking net system according to claim 4 is characterized in that: The described barrier branch pipe is symmetrically provided with adjustment ring grooves, and an adjustment ring is provided in the adjustment ring groove. The adjustment rings are connected by an adjustment sleeve with a closed bottom end. The adjustment sleeve is sleeved on the adjustment connecting rod, and a side adjustment slide groove is provided on the side of the adjustment sleeve to match the adjustment connecting rod.

6. The fish collection and transportation anti-escape blocking net system according to claim 5 is characterized in that: The induction float includes induction buoys arranged on both sides of the top of the anti-escape net. The side of the induction buoy away from the diamond-shaped telescopic frame is provided with an induction rotating shaft, and the induction rotating shaft is provided with a movable buoy connected to the induction rotating shaft on the adjacent induction buoy.

7. The fish collection and transportation anti-escape blocking net system according to claim 6, characterized in that: The induction floating plate also includes at least two arc-shaped floating plates connected in sequence, wherein the arc-shaped floating plate at one end is connected to the induction buoys at both sides; and a counterweight plate is provided on the bottom surface of each arc-shaped floating plate.

8. The fish collection and transportation anti-escape blocking net system according to claim 7 is characterized in that: The arc-shaped floating plate is provided with an induction groove, and flexible anti-skid particles are provided in the induction groove; the weight of the counterweight plate gradually increases along the induction buoy toward the side of the arc-shaped floating plate; the arc-shaped floating plate is a flexible floating plate.

9. The fish collection and transportation anti-escape net system according to claim 2 or 8, characterized in that: The diamond-shaped telescopic frame includes a plurality of diamond-shaped telescopic components connected in sequence, and the diamond-shaped telescopic components include two telescopic connecting rods rotatably connected by a telescopic rotating shaft, and the telescopic rotating shaft is set at the center of the telescopic connecting rod; both ends of the telescopic connecting rod are provided with connecting shafts rotatably connected to adjacent diamond-shaped telescopic components.

10. The fish collection and transportation anti-escape net system according to claim 9, characterized in that: A flexible protective net is provided in the gap of the diamond-shaped telescopic frame; and a flexible anti-collision pad is covered on the telescopic connecting rod.

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