Fish collecting device

Abstract

The fish collecting device comprises a fish collecting channel, a fish collecting assembly and a buoyancy assembly, the fish collecting channel is provided with a mounting groove, a sliding groove and a communicating water channel used for being communicated with a river channel, and the communicating water channel is communicated with the sliding groove; the fish collecting assembly is arranged in the mounting groove in a liftable mode and provided with a fish collecting pond and a fish collecting channel allowing fish luring water to flow, the fish collecting channel extends downwards in the river channel water flow direction, the fish collecting pond is arranged on the upstream of the fish collecting channel, the end, away from the fish collecting pond, of the fish collecting channel is provided with a fish luring opening allowing fishes to enter, and the fish luring water flow speed is larger than the river channel water flow speed; the buoyancy assembly comprises a floating body, the floating body is arranged in the sliding groove in a liftable mode, and the floating body is connected with the fish collecting assembly. According to the fish collecting device, the fish collecting channel can synchronously ascend and descend along with the water level of the river channel, the relative position of the fish collecting channel and the water level of the river channel is kept unchanged, and therefore when the water level of the downstream river channel changes, fish organisms can still enter the fish collecting pond from the fish luring opening and enter the fish collecting pond along the fish collecting channel, and the fish collecting efficiency is high.

Description

Technical Field

[0001] The invention relates to the technical field of fish passing facilities, and in particular to a fish gathering device. Background Art

[0002] Dams and other hydraulic projects have the functions of flood control and power generation, but dams block the longitudinal connectivity of rivers, resulting in the inability of fish upstream and downstream of the dam to exchange genes, destroying the diversity of aquatic organisms. At present, the construction of fish passage facilities such as fishways, fish elevators, and fish collection and transportation systems is an effective way to ensure genetic exchange between fish upstream and downstream of the dam.

[0003] In related technologies, fish are gathered in fish collecting buckets through fish collecting devices at the downstream, and then the fish in the fish collecting buckets are transported upstream to achieve gene exchange between upstream and downstream fish. However, in actual applications, in order to meet the needs of reservoir power generation, the downstream water level varies greatly on a daily, monthly and annual scale. The fish collecting devices in the downstream river cannot adapt to the water level changes, making it difficult to collect fish in the downstream river. Summary of the invention

[0004] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] To this end, an embodiment of the present invention proposes a fish gathering device, in which a fish gathering channel can rise and fall synchronously with the water level of the river, so that the relative positions of the fish luring port and the fish gathering channel and the river water level remain unchanged. Therefore, when the water level of the downstream river changes, fish can still enter from the fish luring port and enter the fish gathering pond along the fish gathering channel, and the fish gathering efficiency is high.

[0006] The fish collecting device of the embodiment of the present invention comprises a fish collecting channel, a fish collecting component and a buoyancy component, wherein the fish collecting channel comprises an installation groove, a slide groove and a connecting waterway for connecting to a river, wherein the connecting waterway is connected to the slide groove; the fish collecting component is liftably arranged in the installation groove, the fish collecting component comprises a fish collecting pond and a fish collecting channel for flowing fish attracting water, wherein the fish collecting channel extends downward along the direction of the water flow in the river, the fish collecting pond is arranged upstream of the fish collecting channel, the end of the fish collecting channel away from the fish collecting pond comprises a fish attracting opening for fish to enter, and the flow speed of the fish attracting water in the fish collecting channel is greater than the flow speed of the water in the river; the buoyancy component comprises a float, wherein the float is liftably arranged in the slide groove, and the float is connected to the fish collecting component.

[0007] In some embodiments, an upper stop portion and / or a lower stop portion for stopping the float is provided in the slide groove, wherein the upper stop portion is provided on the upper side of the float, and the lower stop portion is provided on the lower side of the float.

[0008] In some embodiments, an elastic buffer is connected to a side of the upper stop portion facing the float.

[0009] In some embodiments, the bottom wall of the chute has an inlet and outlet hole, the inlet and outlet hole is connected to the connecting water channel, and the cross-section of the inlet and outlet hole is smaller than the cross-section of the chute.

[0010] In some embodiments, the buoyancy assembly further comprises a connecting rod, one end of which is connected to the float, and the other end of which is connected to the fish attracting assembly.

[0011] In some embodiments, the fish collecting assembly includes a pool body and a plurality of trough bodies sequentially connected along the water flow direction, the pool body has the fish collecting pool, the pool body is connected to the trough body, and a plurality of the trough bodies form the fish collecting channel;

[0012] The buoyancy assembly includes a plurality of float groups, each of which includes at least two floats respectively arranged on both sides of the fish collecting channel, and each of the pool body and the tank body corresponds to at least one float group.

[0013] In some embodiments, two adjacent trough bodies are overlapped; and / or the pool body is overlapped with the trough body.

[0014] In some embodiments, the trough bodies provided at both ends along the extension direction of the fish collecting channel are respectively an upper edge trough body and a lower edge trough body, and the upper edge trough body is provided upstream of the lower edge trough body;

[0015] The pool body overlaps with the upper edge trough body, and the bottom wall of the pool body is lower than the bottom wall of the upper edge trough body;

[0016] The end of the lower edge trough body away from the upper edge trough body is provided with the fish attracting opening, and the bottom wall of the fish attracting opening is lower than the water surface of the river channel.

[0017] In some embodiments, the distance between the bottom wall of the fish attracting port and the water surface of the river channel is greater than 0.5 m.

[0018] In some embodiments, the fish collecting device further comprises a gate, the connecting waterway has a connecting port, and the gate is slidably connected to the fish collecting channel so that the gate can switch between a blocked state for blocking the connecting port and an open state for opening the connecting port.

[0019] The fish gathering device of the embodiment of the present invention injects a fish-attracting water flow with a flow rate greater than the water flow rate of the river into the fish gathering channel, so that a flow rate difference is formed between the flow rate in the fish gathering channel and the flow rate in the river. Since fish have countercurrent habits and flow-seeking characteristics, fish can be induced to swim upstream along the fish gathering channel into the fish gathering pond, so as to achieve the aggregation of fish.

[0020] At the same time, the chute is connected to the river channel through a connecting waterway, so that the water level in the chute is consistent with the water level in the river channel. The float rises and falls synchronously with the water level in the river channel under the buoyancy of the river water in the chute, thereby driving the fish collecting channel and the fish collecting pond to rise and fall synchronously. The heights of the fish collecting channel and the fish collecting pond relative to the water surface of the river channel remain unchanged, that is, the height of the fish attracting mouth relative to the water surface of the river channel remains unchanged. When the water level in the river channel fluctuates, fish can still enter through the fish attracting mouth and enter the fish collecting pond along the fish collecting channel. The fish collecting efficiency is high, thereby preventing the phenomenon of difficulty in fish collecting due to large differences in downstream water levels. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic structural diagram of a fish aggregating device according to an embodiment of the present invention.

[0022] Figure 2 along Figure 1 Sectional view of AA.

[0023] Figure 3 along Figure 1 Cross-sectional view of BB.

[0024] Figure 4 along Figure 1 Section view of CC (river water level is h1).

[0025] Figure 5 along Figure 1 Section view of CC (river water level is h2).

[0026] Figure 6 yes Figure 5 Enlarged schematic diagram of point Ⅰ in the middle.

[0027] Figure 7 yes Figure 5 Enlarged schematic diagram of point II in the middle.

[0028] Reference numerals:

[0029] 100. Fish aggregating devices;

[0030] 1. fish collecting channel; 11. mounting groove; 12. slide groove; 121. inlet and outlet hole; 122. lower stop portion; 13. connecting waterway; 131. connecting port; 14. bottom plate; 141. second groove; 15. short side plate; 16. long side plate; 161. first groove;

[0031] 2. Fish collecting assembly; 21. Pool body; 211. Fish collecting pool; 212. Second lap plate; 213. Second rubber pad; 22. Tank body; 221. Fish collecting channel; 2211. Fish attracting port; 222. First vertical plate; 223. Second vertical plate; 224. Horizontal plate; 225. First lap plate; 226. First rubber pad; 227. Upper edge tank body; 228. Lower edge tank body;

[0032] 3. buoyancy assembly; 31. floating body; 32. connecting rod; 321. first rod section; 322. second rod section; 323. third rod section;

[0033] 4. Limiter; 41. Upper stop portion. DETAILED DESCRIPTION

[0034] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0035] like Figures 1 to 4 As shown, the fish collecting device 100 of the embodiment of the present invention includes a fish collecting channel 1, a fish collecting component 2 and a buoyancy component 3. The fish collecting channel 1 has an installation groove 11, a chute 12 and a connecting waterway 13 for connecting to a river, and the connecting waterway 13 is connected to the chute 12; the fish collecting component 2 is movably arranged on the installation groove 11, the fish collecting component 2 has a fish collecting pool 211 and a fish collecting channel 221 for the flow of fish attracting water, the fish collecting channel 221 extends downward along the direction of the water flow in the river, the fish collecting pool 211 is arranged upstream of the fish collecting channel 221, and the end of the fish collecting channel 221 away from the fish collecting pool 211 has a fish attracting port 2211 for fish to enter, and the speed of the fish attracting water flow in the fish collecting channel 221 is greater than the speed of the water flow in the river; the buoyancy component 3 includes a float 31, the float 31 is movably arranged on the chute 12, and the float 31 is connected to the fish collecting component 2.

[0036] The fish gathering device 100 of the embodiment of the present invention injects a fish-attracting water flow with a flow rate greater than the water flow rate of the river into the fish gathering channel 221, so that a flow rate difference is formed between the flow rate in the fish gathering channel 221 and the flow rate of the river. Since fish have upstream habits and flow-seeking characteristics, fish can be induced to swim upstream along the fish gathering channel 221 into the fish gathering pond 211, so as to achieve the aggregation of fish.

[0037] At the same time, the chute 12 is connected to the river channel through the connecting waterway 13, so that the water level in the chute 12 is consistent with the water level in the river channel. The float 31 rises and falls synchronously with the water level in the river channel under the buoyancy of the river water in the chute 12, thereby driving the fish collecting channel 221 and the fish collecting pond 211 to rise and fall synchronously, so that the heights of the fish collecting channel 221 and the fish collecting pond 211 relative to the water surface of the river channel remain unchanged, that is, the height of the fish luring port 2211 relative to the water surface of the river channel remains unchanged. When the water level in the river channel fluctuates, fish can still enter through the fish luring port 2211 and enter the fish collecting pond 211 along the fish collecting channel 221, and the fish collecting efficiency is high, thereby preventing the phenomenon of difficulty in fish collecting due to large differences in downstream water levels.

[0038] Optionally, when the number of fish gathered in the fish collecting pond 211 reaches a certain amount, the fish are caught manually and then transported upstream by vehicles.

[0039] Optionally, a fish collecting box is provided in the fish collecting pond 211; the fish entering the fish collecting pond 211 are gathered in the fish collecting box, and when the number of fish in the fish collecting box reaches a certain number, the fish collecting box is lifted upstream by a winch.

[0040] Alternatively, if Figure 1 and Figure 2 As shown, the cross section of the chute 12 is circular, the float 31 is cylindrical, and the diameter of the float 31 matches the diameter of the chute 12 , so that the float 31 can rise and fall freely in the chute 12 .

[0041] As an example, Figure 1 and Figure 2 As shown, the fish collecting channel 1 is cast by concrete, and the fish collecting channel 1 is in the shape of a long strip and extends along the direction of water flow in the river. The fish collecting channel 1 includes a bottom plate 14, a short side plate 15 and two long side plates 16 parallel to each other, the two long side plates 16 extend along the direction of water flow in the river, and the two sides of the short side plate 15 are respectively connected to the two long side plates 16; the bottom plate 14, the short side plate 15 and the two long side plates 16 together form the above-mentioned installation groove 11, and the fish collecting component 2 can be lifted and lowered in the installation groove 11; the slide groove 12 is formed on the two long side plates 16, and the floating body 31 can be lifted and lowered in the slide groove 12.

[0042] like Figure 2 and Figure 3 As shown, the short side plates 15 and the long side plates 16 are of equal thickness, and the bottom plate 14 is twice as thick as the short side plates 15 , so as to improve the ability of the fish collecting channel 1 to resist water scouring and increase the service life of the fish collecting channel 1 .

[0043] Optionally, the fish attracting component 2 is made of stainless steel.

[0044] Optionally, the slope of the fish collecting channel 221 is 1% to 2%.

[0045] Correspondingly, if Figure 2 and Figure 4 As shown, the upper surface of the long side plate 16 extends downwardly along the direction of the water flow in the river channel, and its slope matches the slope of the fish collecting channel 221.

[0046] Alternatively, if Figure 4 As shown, the fish-attracting water is injected from one end of the fish-collecting channel 221 away from the fish-attracting port 2211, flows downward along the fish-collecting channel 221, and merges into the river through the fish-attracting port 2211; specifically, water can be pumped by a water pump or water can be injected by an upstream water pipe, so that the flow rate of the fish-attracting water is greater than the flow rate of the downstream river water, thereby attracting fish organisms to enter the fish-collecting channel 221 through the fish-attracting port 2211 and flow upstream along the fish-collecting channel 221 into the fish-collecting pond 211.

[0047] Optionally, fish attracting facilities, such as fish attracting lights, are provided in the fish collecting channel 221 .

[0048] In some embodiments, an upper stop portion 41 and / or a lower stop portion 122 for stopping the float 31 is provided in the slide groove 12 . The upper stop portion 41 is provided on the upper side of the float 31 , and the lower stop portion 122 is provided on the lower side of the float 31 .

[0049] In other words, when the float 31 stops at the lower stop portion 122, it is at its lower limit position, and when the float 31 stops at the upper stop portion 41, it is at its upper limit position. The upper and lower stop portions 41 and the lower stop portions 122 limit the up and down floating range of the float 31, which can prevent the float 31 from falling off the chute 12 when the water level is too low or from falling off the chute 12 when the water level is too high, thereby preventing the fish collecting channel 221 of the fish collecting assembly 2 from being damaged and ensuring the normal use of the fish collecting channel 221.

[0050] Specifically, Figure 2 and Figure 3 As shown, the slide groove 12 extends upward through the upper surface of the long side plate 16, and the slide groove 12 has a groove bottom wall, and the groove bottom wall of the slide groove 12 forms the above-mentioned lower stop portion 122, which is used to limit the lower limit position of the float 31; a limiter 4 is provided in the slide groove 12, and the limiter 4 is fixed to the side groove wall of the slide groove 12 by bolts, and the lower side of the limiter 4 forms the above-mentioned upper stop portion 41, which is used to limit the upper limit position of the float 31.

[0051] Optionally, the stopper 4 is cylindrical and is coaxially arranged with the slide groove 12 , and the outer side surface of the stopper 4 is in contact with the groove side wall of the slide groove 12 .

[0052] Thus, the lower end surface of the stopper 4 can stop against the upper end surface of the float 31 to limit the upper limit position of the float 31 .

[0053] Optionally, the limiter 4 includes a plurality of limit blocks, the plurality of limit blocks are evenly distributed along the circumference of the slide groove 12, and the lower side surfaces of the plurality of limit blocks are on the same horizontal plane.

[0054] Thus, the lower side surfaces of the plurality of limit blocks can simultaneously stop against the upper end surface of the floating body 31 to limit the upper limit position of the floating body 31 .

[0055] In some embodiments, an elastic buffer is fixedly connected to a side of the upper stop portion 41 facing the float 31 .

[0056] Optionally, the elastic buffer is rubber, foam or a buffer spring.

[0057] Thus, the upper stop portion 41 can be buffered when the float 31 hits it, thereby preventing the float 31 from repeatedly hitting the upper stop portion 41 when the water level of the river fluctuates rapidly, thereby preventing the float 31 from being damaged.

[0058] In some embodiments, Figure 2 and Figure 3 As shown, the bottom wall of the chute 12 has an inlet and outlet hole 121 , which is connected to the connecting water channel 13 , and the cross section of the inlet and outlet hole 121 is smaller than the cross section of the chute 12 .

[0059] The river water in the downstream river channel enters the chute 12 through the connecting waterway 13 and the inlet and outlet holes 121 in turn. Through the above arrangement, the inlet and outlet holes 121 have a damping effect, and the water flow has a large resistance when passing through the inlet and outlet holes 121, thereby avoiding drastic fluctuations in the water level in the chute 12 in a short period of time, preventing the float 31 and the fish collecting assembly 2 from being damaged.

[0060] Optionally, the diameter of the slide groove 12 is D, the diameter of the inlet and outlet hole 121 is d, and 1 / 5D≤d≤1 / 2D.

[0061] like Figure 2 and Figure 3 As shown, the bottom of each chute 12 is correspondingly provided with an inlet and outlet hole 121, and the connecting waterway 13 is formed on the lower side of the bottom wall of the chute 12, and is connected with the inlet and outlet holes 121 of multiple chutes 12; the connecting waterway 13 has a connecting port 131, and the connecting port 131 is arranged at one end of the connecting waterway 13 away from the short side plate 15. The river water enters the connecting waterway 13 through the connecting port 131, and then enters the chute 12 through the inlet and outlet hole 121, so that the water level in the chute 12 is consistent with the water level of the river channel, and the float 31 can rise and fall synchronously with the water level of the river channel, thereby driving the fish collecting component 2 to rise and fall synchronously, thereby ensuring the normal progress of the fish collecting work when the water level of the river channel fluctuates.

[0062] In some embodiments, the buoyancy assembly 3 further includes a connecting rod 32 , one end of the connecting rod 32 is connected to the float 31 , and the other end of the connecting rod 32 is connected to the fish attracting assembly 2 .

[0063] Specifically, Figure 3 As shown, the connecting rod 32 includes a first rod segment 321, a second rod segment 322 and a third rod segment 323 which are connected in sequence. The first rod segment 321 and the third rod segment 323 both extend vertically. One end of the first rod segment 321 is fixedly connected to the upper end surface of the floating body 31, and the other end extends upward to the outside of the slide groove 12. One end of the third rod segment 323 is fixedly connected to the fish collecting component 2 (the side wall of the fish collecting pool 211 or the fish collecting channel 221), and the other end extends upward to the outside of the mounting groove 11. The second rod segment 322 is arranged on the upper side of the fish collecting channel 1 and extends horizontally. The two ends of the second rod segment 322 are fixedly connected to the first rod segment 321 and the third rod segment 323 respectively; thereby, the connection between the floating body 31 and the fish collecting component 2 is realized, and the fish collecting component 2 can be driven by the floating body 31 to achieve lifting.

[0064] like Figure 2 and Figure 3As shown, there are multiple connecting rods 32, and the connecting rods 32 correspond to the floating bodies 31 one by one. The heights of the multiple connecting rods 32 decrease successively along the direction of the river flow, and the second rod section 322 is arranged at intervals from the upper surface of the long side plate 16 to prevent the floating body 31 from colliding with the fish collecting channel 1 during the process of driving the fish collecting assembly 2 to rise and fall.

[0065] In some embodiments, Figures 1 to 4 As shown, the fish collecting component 2 includes a pool body 21 and a plurality of trough bodies 22 connected in sequence along the water flow direction, the pool body 21 has the above-mentioned fish collecting pool 211, the pool body 21 is connected to the trough body 22, and the plurality of trough bodies 22 constitute the above-mentioned fish collecting channel 221; the buoyancy component 3 includes a plurality of floating body groups, the floating body group includes at least two floating bodies 31 respectively arranged on both sides of the fish collecting channel 221, and the pool body 21 and the trough body 22 each correspond to at least one floating body group.

[0066] When the water surface of the river fluctuates greatly, the heights of the floats 31 in the multiple chutes 12 may be inconsistent. If the fish collecting channel 221 is an integrated structure, it is easy to cause the fish collecting channel 221 to get stuck or even break during the rising or falling process. Through the above settings, the float groups corresponding to each trough 22 are not connected to each other, that is, each trough 22 is driven to rise and fall by the corresponding float group alone, and the heights of two adjacent troughs 22 are adjustable, which prevents the fish collecting channel 221 from getting stuck.

[0067] At the same time, since the float group rises and falls with the rise and fall of the river water level, the rise or fall of multiple float groups is basically equal, so the synchronous rise and fall of multiple troughs 22 can be achieved to ensure the continuity and integrity of the fish collecting channel 221, thereby improving the stability of the flow of fish-attracting water along the fish collecting channel 221, preventing the fish from being disturbed, and being more conducive to the fish collecting work.

[0068] Alternatively, if Figures 1 to 3 As shown, the floating body group includes two floating bodies 31 symmetrically arranged along the width direction of the fish collecting channel 1, and the pool body 21 and each trough body 22 correspond to two floating body groups.

[0069] Thus, the pool body 21 and the tank body 22 can be stably raised or lowered by the four floats 31 .

[0070] In some embodiments, two adjacent trough bodies 22 are overlapped; and / or the pool body 21 and the trough body 22 are overlapped.

[0071] Specifically, Figure 4 and Figure 5As shown, the trough body 22 has three structures, namely a first structure, a second structure and a third structure. The trough body 22 of the first structure includes a first vertical plate 222, a second vertical plate 223 and a horizontal plate 224 that are integrally formed. The first vertical plate 222 and the second vertical plate 223 are parallel to each other and arranged at intervals along the direction of water flow in the river channel. The horizontal plate 224 is horizontally arranged between the first vertical plate 222 and the second vertical plate 223, so that the trough body 22 of the first structure is U-shaped.

[0072] The second structure of the trough body 22 is different from the first structure of the trough body 22 in that the second structure of the trough body 22 is not provided with the first vertical plate 222 , that is, the second structure of the trough body 22 only includes the horizontal plate 224 and the second vertical plate 223 .

[0073] The trough body 22 of the third structure is different from the trough body 22 of the first structure in that the trough body 22 of the third structure is not provided with the second vertical plate 223 , that is, the trough body 22 of the third structure only includes the horizontal plate 224 and the first vertical plate 222 .

[0074] Among them, the trough bodies 22 arranged at both ends of the fish collecting channel 221 are respectively an upper edge trough body 227 and a lower edge trough body 228. The upper edge trough body 227 is arranged upstream of the lower edge trough body 228. The upper edge trough body 227 adopts the above-mentioned second structure, the lower edge trough body 228 adopts the above-mentioned third structure, and the remaining trough bodies 22 all adopt the above-mentioned first structure.

[0075] In order to facilitate description of the overlapping structure of two adjacent trough bodies 22 , the trough body 22 located upstream of the two adjacent trough bodies 22 is named as an upper trough body, and the trough body 22 located downstream is named as a lower trough body.

[0076] like Figure 5 and Figure 6 As shown, the upper end of the second vertical plate 223 of the upper trough body is connected with a first lap plate 225, and the first lap plate 225 extends horizontally to the upper side of the first vertical plate 222 of the lower trough body and fits therewith, that is, the first lap plate 225 of the upper trough body is overlapped with the first vertical plate 222 of the lower trough body, which can prevent the fish-attracting water flow from leaking between two adjacent trough bodies 22, thereby ensuring the continuity of the fish collecting channel 221.

[0077] A first rubber pad 226 is provided between the first lap plate 225 of the upper trough body and the upper side surface of the first vertical plate 222 of the lower trough body, thereby increasing the sealing performance of the lap joint between two adjacent trough bodies 22 .

[0078] The multiple trough bodies 22 are connected in sequence from top to bottom in the same manner to form a stepped fish collecting channel 221. The fish attracting water flows downward along the fish collecting channel 221, which can dissipate the energy of the fish attracting water flow and control the fish attracting water flow to flow smoothly. In addition, each trough body 22 can form an independent fish collecting trough, and the fish can enter the fish collecting trough to rest when swimming upward, so as to prevent the fish from being unable to overcome the impact of the fish attracting water flow when they are tired and being washed into the river.

[0079] The fish collecting passage 221 in the embodiment of the present invention is of a stepped type. In other embodiments, the fish collecting passage 221 may also be of a vertical slit type or a Daniel type.

[0080] like Figure 5 and Figure 7 As shown, the pond body 21 of the fish collecting pond 211 is in the shape of a U-shaped groove, and a second overlapping plate 212 is provided on one side of the pond body 21 close to the fish collecting passage 221, and the second overlapping plate 212 is overlapped on the transverse plate 224 of the upper edge groove body 227; thereby, the fish collecting pond 211 and the fish collecting passage 221 are overlapped, so that fish can enter the fish collecting pond 211 through the fish collecting passage 221.

[0081] A second rubber pad 213 is provided between the second lap plate 212 and the transverse plate 224 of the edge trough body 22 to increase the sealing performance of the connection between the fish collecting pool 211 and the fish collecting channel 221 .

[0082] In some embodiments, the trough bodies 22 arranged at both ends along the extension direction of the fish collecting channel 221 are respectively an upper edge trough body 227 and a lower edge trough body 228, and the upper edge trough body 227 is arranged upstream of the lower edge trough body 228; the pool body 21 overlaps with the upper edge trough body 227, and the bottom wall of the pool body 21 is lower than the bottom wall of the upper edge trough body 227; the end of the lower edge trough body 228 away from the upper edge trough body 227 has the above-mentioned fish luring mouth 2211, the bottom wall of the fish luring mouth 2211 is lower than the water surface of the river channel, and the distance between the bottom wall of the fish luring mouth 2211 and the water surface of the river channel is greater than 0.5m.

[0083] Since the bottom wall of the pool body 21 is lower than the bottom wall of the upper edge groove body 227, fish can gather in the fish collecting pool 211, preventing fish from entering the fish collecting pool 211 and then swimming out of the fish collecting pool 211. In addition, the bottom wall of the fish attracting port 2211 is lower than the water surface of the river channel, so that the water flow of the fish attracting water is more stable when it flows into the river channel, preventing fish from being disturbed, and at the same time, it is more conducive to the fish in the river channel to enter the fish attracting port 2211.

[0084] Alternatively, if Figure 4 and Figure 5 As shown, the trough body 22 located between the upper edge trough body 227 and the lower edge trough body 228 is an intermediate trough body, and at least a portion of the bottom wall of the intermediate trough body is higher than the water surface of the river channel.

[0085] Therefore, when the fish-attracting water flows downward along the fish-gathering channel 221, most of its flow trajectory is higher than the river water surface, which can reduce the impact of the river water velocity on the fish-attracting water velocity, facilitate the control of the fish-attracting water velocity, and thus be more conducive to the fish gathering work.

[0086] like Figure 4 and Figure 5 As shown, the operation mode of the fish aggregating device 100 according to the embodiment of the present invention is as follows:

[0087] The slope of the fish collecting channel 221 is 1% to 2%. When the water level of the downstream river rises from h1 to h2, the river water enters the multiple chutes 12 through the connecting waterway 13, pushing the multiple floats 31 to rise synchronously, and then driving the multiple troughs 22 to rise synchronously, and the slope of the fish collecting channel 221 remains unchanged; since the troughs 22 and the floats 31 are connected by the connecting rod 32, and the relative positions of the floats 31 and the river water surface in the vertical direction remain unchanged, the relative positions of the fish attracting port 2211, the fish collecting channel 221 and the fish collecting pool 211 and the river water surface remain unchanged, thereby ensuring the normal progress of the fish collecting work and improving the fish collecting efficiency when the water level of the downstream river changes.

[0088] In some embodiments, the fish collecting device 100 further comprises a gate, the connecting waterway 13 has a connecting port 131 , and the gate is slidably connected to the fish collecting channel 1 so that the gate can switch between a blocking state of blocking the connecting port 131 and an opening state of opening the connecting port 131 .

[0089] When discharging flood water, the gate can be switched to a blocking state. The gate blocks the connecting port 131 to prevent river water from entering the lower side of the water collection channel through the connecting waterway 13, thereby preventing the overall structure of the fish collection channel 1 from being damaged.

[0090] Specifically, Figure 1 As shown, the communication port 131 is arranged at one end of the fish collecting channel 1 away from its short side plate 15, and the relatively close sides of the two long side plates 16 are each provided with a first groove 161. The gate is a flat gate, and the two sides of the gate are respectively matched with the two first grooves 161. The gate can be inserted into the two first grooves 161 from the upper side of the fish collecting channel 1 to achieve the installation of this door.

[0091] like Figure 2 As shown, a second groove 141 is provided on the upper surface of the bottom plate 14. When the gate is in a blocked state, the lower side of the bottom plate 14 is inserted into the second groove 141, so that the installation position of the gate is more stable.

[0092] Thus, the gate can block the lower communication port 131 and the upper fish attracting port 2211, thereby protecting the entire fish aggregating device 100 during flood discharge and preventing the overall structure of the fish aggregating device 100 from being damaged.

[0093] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0094] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying 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 the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0095] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0096] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0097] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0098] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A fish aggregating device (100), characterized in that: include: A fish collecting channel (1), the fish collecting channel (1) comprising a mounting groove (11), a chute (12) and a connecting waterway (13) for connecting with a river, the connecting waterway (13) being connected with the chute (12); A fish collecting component (2), the fish collecting component (2) being movably arranged on the installation groove (11), the fish collecting component (2) comprising a fish collecting pond (211) and a fish collecting channel (221) for the flow of fish attracting water, the fish collecting channel (221) extending downward along the direction of the water flow of the river, the fish collecting pond (211) being arranged upstream of the fish collecting channel (221), the end of the fish collecting channel (221) away from the fish collecting pond (211) comprising a fish attracting opening (2211) for the entry of fish, the flow velocity of the fish attracting water in the fish collecting channel (221) being greater than the flow velocity of the water in the river; A buoyancy component (3), the buoyancy component (3) comprising a float (31), the float (31) being movably disposed on the slideway (12), the float (31) being connected to the fish attracting component (2).

2. The fish aggregating device (100) according to claim 1, characterized in that: An upper stop portion (41) and / or a lower stop portion (122) for abutting against the floating body (31) are provided in the slide groove (12); the upper stop portion (41) is provided on the upper side of the floating body (31), and the lower stop portion (122) is provided on the lower side of the floating body (31).

3. The fish aggregating device (100) according to claim 2, characterized in that: A side of the upper stop portion (41) facing the floating body (31) is connected to an elastic buffer.

4. The fish aggregating device (100) according to claim 2, characterized in that: The bottom wall of the chute (12) has an inlet and outlet hole (121), the inlet and outlet hole (121) is connected to the connecting water channel (13), and the cross section of the inlet and outlet hole (121) is smaller than the cross section of the chute (12).

5. The fish aggregating device (100) according to claim 1, characterized in that: The buoyancy assembly (3) further comprises a connecting rod (32), one end of which is connected to the floating body (31), and the other end of which is connected to the fish attracting assembly (2).

6. The fish aggregating device (100) according to any one of claims 1 to 5, characterized in that: The fish collecting component (2) comprises a pool body (21) and a plurality of trough bodies (22) connected in sequence along the water flow direction, the pool body (21) having the fish collecting pool (211), the pool body (21) being connected to the trough body (22), and a plurality of the trough bodies (22) forming the fish collecting channel (221); The buoyancy assembly (3) comprises a plurality of float groups, wherein the float group comprises at least two floats (31) respectively arranged on both sides of the fish collecting passage (221), and the pool body (21) and the tank body (22) each correspond to at least one float group.

7. The fish aggregating device (100) according to claim 6, characterized in that: Two adjacent trough bodies (22) are overlapped; and / or the pool body (21) and the trough body (22) are overlapped.

8. The fish aggregating device (100) according to claim 6, characterized in that: The trough bodies (22) arranged at both ends along the extension direction of the fish collecting channel (221) are respectively an upper edge trough body (227) and a lower edge trough body (228), and the upper edge trough body (227) is arranged upstream of the lower edge trough body (228); The pool body (21) overlaps with the upper edge trough body (227), and the bottom wall of the pool body (21) is lower than the bottom wall of the upper edge trough body (227); The end of the lower edge trough body (228) away from the upper edge trough body (227) is provided with the fish attracting opening (2211), and the bottom wall of the fish attracting opening (2211) is lower than the water surface of the river channel.

9. The fish aggregating device (100) according to claim 8, characterized in that: The distance between the bottom wall of the fish attracting port (2211) and the water surface of the river channel is greater than 0.5 m.

10. The fish aggregating device (100) according to claim 1, characterized in that: The fish collecting device (100) further comprises a gate, the communicating waterway (13) has a communicating port (131), and the gate is slidably connected to the fish collecting channel (1) so that the gate can be switched between a blocking state for blocking the communicating port (131) and an open state for opening the communicating port (131).

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