Intelligent ecological fish culture and fishing and fishery resource restoration integrated system for ocean and lake

Abstract

The utility model discloses an ocean and lake intelligent ecological fish farming and fishing and fishery resource restoration integrated system which comprises a supporting floating bridge used for floating on the water surface to form a fishing area in a preset water area; the peripheral net is connected to the supporting floating bridge so as to form a temporary fishing and breeding area in the fishing area, net holes with preset hole diameters are densely distributed in the peripheral net so that fishes with the size smaller than the preset body size can freely pass through the net holes, fishes with the size larger than the preset body size can be limited in the peripheral net, and a plurality of fish inlet channels are formed in the peripheral net; the fish collecting boxes are arranged around the peripheral net, the fish collecting boxes semi-float or suspend in water and are detachably connected with fish guiding channels extending into the temporary fishing and breeding area, and the fish guiding channels are used for allowing fishes with the size larger than the preset shape to enter in a one-way mode. The fishing device can achieve the purpose of catching large fishes and releasing small fishes, and greatly reduces caught small fishes and fish fries, thereby reducing damage to fishery resources and being beneficial to fishery resource restoration.

Description

Technical Field

[0001] The utility model relates to the technical field of fishery breeding, in particular to an integrated system for intelligent ecological fish breeding and fishing in oceans and lakes and for restoring fishery resources. Background Art

[0002] At present, fishing in oceans and lakes is usually done by dragging nets. In order to increase the catch of a single net, small-mesh fishing nets are often used. Fish of different sizes will be caught together, especially a large number of small fish and fry. In addition, dragging and other actions during the fishing process can easily cause fish death, resulting in a high fishing mortality rate. The value of dead fish will also be greatly reduced, and the economic value of small fish and fry will also be low. In addition, after fishing, fishery resources will be damaged, which is not conducive to the restoration of fishery resources. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide an integrated system for intelligent ecological fish farming and fishing and fishery resource restoration in oceans and lakes, which has the advantages of improving the survival rate of fish and realizing the ecological restoration of fishery resources.

[0004] The purpose of this utility model is achieved by the following technical solutions:

[0005] According to an embodiment of the present disclosure, a system for intelligent ecological fish farming, fishing, and fishery resource restoration in oceans and lakes is provided, comprising:

[0006] a supporting pontoon for floating on the water surface to form a fishing area within a predetermined water area;

[0007] an outer net connected to the supporting pontoon to form a temporary fishing and breeding area within the fishing area, the outer net being densely covered with mesh holes of a predetermined diameter to allow fish below a predetermined size to pass freely and to confine fish above a predetermined size within the outer net, and the outer net being provided with a plurality of fish entry channels for allowing fish to enter the temporary fishing and breeding area from outside the outer net in a one-way manner;

[0008] A plurality of fish collecting boxes are arranged around the outer net, the fish collecting boxes are semi-floating or suspended in the water, and are detachably connected to a fish attracting channel extending to the temporary fishing and breeding area, the fish attracting channel allows fish above a predetermined size to enter in one direction, and the fish attracting channel is densely covered with mesh holes of a predetermined aperture.

[0009] To implement the above technical solution, the system can be arranged in a fishing area set in a lake or ocean. During the swimming process, the fish school can enter the temporary fishing and breeding area formed by the outer net through the fish inlet channel. Due to the one-way restriction of the fish inlet channel, it is difficult for the fish school to return from the fish inlet channel. At the same time, it is restricted by the mesh holes of the predetermined aperture. Smaller fish can enter and exit freely, while larger fish that are the target of fishing cannot enter and exit. When the fish school is in the temporary fishing and breeding area, it will gradually enter the fish collecting box through the fish induction channel. Similarly, the smaller fish will re-swim into the temporary fishing and breeding area through the mesh holes on the fish induction channel, while the larger fish that are the target of fishing cannot enter and exit. The one-way restriction of the fish attracting channel makes it difficult for larger fish to swim back to the temporary fishing and breeding area through the fish attracting channel, so that the fish entering the fish collecting box are basically larger fish. Moreover, because the fish collecting box is semi-floating or suspended in the water, the fish can survive for a long time after entering the fish collecting box, thus achieving the purpose of catching large fish and releasing small fish, greatly reducing the capture of small fish and fry, thereby reducing damage to fishery resources and facilitating the restoration of fishery resources. After collecting fish for a period of time, the fish collecting box can be disassembled from the outer net and hoisted out for unloading, or the fish can be transferred from the fish collecting box to a transport container in the water as needed.

[0010] On the other hand, since large fish have greater economic value, the growth rate of large fish after being fed with the same amount of feed is significantly smaller than that after being fed with small fish. Therefore, only catching large fish can not only obtain greater economic benefits, but also leave more food for small fish, bringing better economic benefits in the future. At the same time, the present invention adopts a passive fishing method. Only when the fishery resources are restored to a better state can enough fish be caught, thereby forcing relevant practitioners to protect and restore fishery resources before they can make a profit, which is conducive to cultivating the resource protection awareness of relevant practitioners. From a long-term perspective, it has far-reaching significance for the protection of fishery resources and ecological restoration.

[0011] In some exemplary embodiments, the supporting floating bridge includes a plurality of sub-bridge assemblies connected end to end to form a closed or semi-closed ring, and the sub-bridge assemblies include:

[0012] An inner ring rod and an outer ring rod are relatively spaced apart, an installation space is formed between the inner ring rod and the outer ring rod, and both ends of the inner ring rod and the outer ring rod are respectively provided with connecting joints that cooperate with each other;

[0013] a plurality of floating barrels arranged in the installation space; and

[0014] A locking piece is used to tighten the float barrel and relatively fix it in the installation space.

[0015] To implement the above technical solution, the inner ring rod, outer ring rod and locking piece cooperate with each other to fix the float and form an integrated structure. The relative connection of adjacent sub-bridge components can be easily achieved through the connecting joints. After several sub-bridge components are connected to each other to form a whole, a large buoyancy can be generated through a sufficient number of floats, thereby achieving support and fixation of the outer net and other structures.

[0016] In some exemplary embodiments, the supporting pontoon is further connected to at least three groups of evenly distributed anchoring structures, the anchoring structures comprising:

[0017] A heavy anchor connected to the supporting pontoon via a first pull rope and forming an inclined anchoring state; and

[0018] A floating counterweight block is connected to the middle part of the first pull rope through a second pull rope to form a deformable curved section of the first pull rope, and the deformable curved section is used to float and change when the supporting pontoon is pushed up by wind and waves.

[0019] To implement the above technical solution, multiple heavy anchors cooperate with each other to anchor the supporting pontoon, so that the supporting pontoon can be restricted in a relatively fixed position. Through the floating counterweight, on the one hand, the supporting pontoon can be further anchored to improve the stability of the supporting pontoon. On the other hand, when there are strong winds and waves, the supporting pontoon will rise and fall with the water surface. Since a deformable curved section is formed on the first pull rope, when the supporting pontoon rises, the first pull rope and the floating counterweight will rise synchronously, causing the deformable curved section to change in the direction of straightening, thereby making the supporting pontoon more stable during the rising and falling process.

[0020] In some exemplary embodiments, the outer net is provided with a plurality of fish inlets for communicating with the fish inlet channel, and the fish inlet channel includes:

[0021] a fish inlet guide net in the shape of a cylindrical channel, wherein a first end of the fish inlet guide net is connected to the fish inlet, and a second end is open and extends into the temporary fishing and breeding area;

[0022] a plurality of first support rings arranged in the fish guide net; and,

[0023] A cone-shaped fish barrier is provided near the second end of the fish inlet guide net. The fish barrier is connected to the first support ring or the fish inlet guide net and is suspended to form a fish outlet between the barrier and the inner wall of the fish inlet guide net.

[0024] To implement the above technical solution, the fish inlet guide net is supported by the first support ring to form a stable channel structure, and a fish outlet is formed by the conical fish blocking barrier, making it difficult for the fish to swim in the opposite direction, thereby achieving a one-way restriction effect on the fish inlet channel.

[0025] In some exemplary embodiments, the fish collection box comprises:

[0026] A net cage, wherein a one-way fish attracting inlet is provided on a first side of the net cage and is connected to the fish attracting channel, the one-way fish attracting inlet is sunk below the water surface, and a fish unloading net opening is provided on a second side of the net cage, the fish unloading net opening being controlled to be tightened or opened by a sealing pull rope;

[0027] a plurality of inflatable floats arranged on the inner wall of the net cage, used to compress the space inside the net cage after inflation to force the fish to swim towards the fish unloading net port; and

[0028] A fish unloading counterweight block is detachably connected to the second side of the net cage, and when the fish unloading counterweight block is connected to the net cage, the fish unloading net opening is tilted downward.

[0029] The above technical solution is implemented to form a fish storage space in the net cage. After passing through the fish attracting channel, the fish enter the net cage from the one-way fish attracting inlet. The suspension depth of the fish collecting box can be controlled by controlling the amount of air in the inflatable float. The fish can be unloaded directly in the water, or the fish collecting box can be removed from the outer net and then hoisted out of the water for unloading. When unloading the fish in the water, the fish unloading net opening is connected to the fish collecting container. After the fish unloading net opening is opened by a sealing pull rope, the fish can swim into the fish collecting container from the fish unloading net opening. At the same time, the inflatable float can be continued to be inflated. When the fish collecting box floats up, the fish storage space therein is reduced, forcing the fish to swim out from the fish unloading net opening, thereby improving the fish unloading efficiency. In addition, the fish unloading counterweight can be connected to the net cage to tilt the net cage downward and dump the fish into the fish collecting container more quickly.

[0030] In some exemplary embodiments, the outer net is provided with a plurality of fish outlets connected to the fish attracting channel, and the fish attracting channel includes:

[0031] A fish guide net, a first end of which is connected to the fish outlet and detachably connected to the one-way fish guide inlet, and a second end of which extends to the temporary fishing and breeding area, the fish guide net being densely covered with mesh holes of predetermined apertures and having a supporting frame disposed therein;

[0032] a plurality of one-way guide inlets provided on the fish guide net for fish to enter; and,

[0033] A guide counterweight is provided near the second end of the fish guide net.

[0034] To implement the above technical solution, a stable channel is formed in the fish guide net through the supporting frame, and the guide counterweight makes the fish guide net as a whole droop, that is, the fish guide net can be extended to waters of different depths. Then, fish are introduced into the fish guide net through the one-way guide entrance, so that the fish entering the fish guide net can only swim along the fish guide net to the entrance and finally enter the fish collecting box, thereby realizing the collection and storage of the fish.

[0035] In some exemplary embodiments, an intranet component is further provided near the middle of the peripheral network, and the intranet component includes:

[0036] an inner pontoon, adapted to float on the water surface to form a feeding area in a predetermined water area; and

[0037] An inner enclosure net is connected to the inner floating bridge to form a fry rearing area within the rearing area, wherein the inner enclosure net is sequentially provided with a plurality of dense mesh areas and sparse mesh areas from top to bottom, wherein the mesh openings of the dense mesh areas and the sparse mesh areas are both smaller than or equal to a predetermined aperture;

[0038] A feeding channel is provided between the supporting pontoon and the inner pontoon, the feeding channel is used to feed live bait into the fry rearing area, and the dredging area is used to allow the live bait to enter and exit freely;

[0039] The supporting pontoon is provided with at least three end-to-end fixed pull ropes, the inner pontoon is located in a space enclosed by the fixed pull ropes, and the inner pontoon is connected with the fixed pull ropes through a plurality of positioning pull ropes.

[0040] To implement the above technical solution, the supporting pontoon and the inner pontoon can form a relatively stable integrated structure by coordinating the shaping rope and the positioning rope, and the inner pontoon can be kept in the middle area of ​​the supporting pontoon. Smaller fish can be sheltered by the inner net, and live bait can be fed into the inner net through the feeding channel. Smaller fish can enter the inner net to avoid attacks from larger fish, and can also grow safely in the inner net, which is beneficial to the ecological restoration of fishery resources. The set sparse net area can also allow live bait to swim to the temporary fishing and breeding area to feed the fish therein.

[0041] In some exemplary embodiments, the fish collecting box is provided with a plurality of monitoring cameras, which are communicatively connected to a remote server. The monitoring cameras take pictures of the fish entering the fish collecting box and upload the pictures to the remote server to determine the number and type of the fish.

[0042] The above technical solution is implemented to count the number and species of fish.

[0043] In some exemplary embodiments, the supporting pontoon is provided with a plurality of closing motors corresponding to the fish collecting boxes, the controllers of the closing motors are communicatively connected to the remote server, the power output end of the closing motors is connected to a closing rope for controlling the size of the opening of the one-way fish attracting inlet, and when the remote server determines that a predetermined type of fish appears, the closing motor is controlled to operate to reel in the closing rope to reduce the opening of the one-way fish attracting inlet.

[0044] To implement the above technical solution, when it is determined that valuable fish species have entered the fish collecting box, the closing rope is driven to be reeled by the closing motor to reduce the opening size of the one-way fish inlet and reduce the chance of the valuable fish species escaping.

[0045] In some exemplary embodiments, a barrier net is further included, the barrier net surrounding the plurality of supporting pontoons or enclosing the plurality of supporting pontoons on the water bank, and a plurality of one-way sealing doors are provided on the side of the barrier net facing the water flow direction;

[0046] The one-way sealing door is used to open or close the opening on the barrier net. The one-way sealing door can be opened toward the inside of the barrier net under the push of water flow, and a counterweight bar is provided on the one-way sealing door to close the opening when the water flow push is lost.

[0047] To implement the above technical solution, since fish tend to follow the direction of water flow, when the water flow rate is obvious, such as high tide and low tide, the water flow will push open the one-way sealed door, and the fish can enter the net from the opening on the net. When the water flow is relatively stable, the one-way sealed door will close the opening under the action of the counterweight rod, restricting the fish within the range of the net, thereby making the fish more concentrated and easier to enter the outer net, thereby improving fishing efficiency.

[0048] In summary, compared with the prior art, the present invention has the following beneficial effects:

[0049] The embodiment of the present invention provides an integrated system for intelligent ecological fish farming and fishing and fishery resource restoration in oceans and lakes. The system can be arranged in a fishing area set in a lake or ocean. During the swimming process, the fish can enter the temporary fishing and breeding area formed by the outer net through the fish inlet channel. Due to the one-way restriction of the fish inlet channel, it is difficult for the fish to return from the fish inlet channel. At the same time, they are restricted by the mesh of a predetermined aperture. Smaller fish can enter and exit freely, while larger fish that are the target of fishing cannot enter and exit. When the fish are in the temporary fishing and breeding area, they will gradually enter the fish collecting box through the fish induction channel. Similarly, smaller fish will fall out of the mesh on the fish induction channel. The fish are then drawn back into the temporary fishing and breeding area, but due to the one-way restriction of the fish attracting channel, it is difficult for larger fish to swim back to the temporary fishing and breeding area from the fish attracting channel, so that the fish entering the fish collecting box are basically larger fish. Moreover, since the fish collecting box is semi-floating or suspended in the water, the fish can survive for a long time when entering the fish collecting box, thereby achieving the purpose of catching large fish and releasing small fish, greatly reducing the capture of small fish and fry, thereby reducing the damage to fishery resources and being beneficial to the restoration of fishery resources. After collecting fish for a period of time, the fish collecting box can be disassembled from the outer net and hoisted out for unloading, or the fish can be transferred from the fish collecting box to a transport container in the water as needed. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 This is a schematic structural diagram of the first embodiment of the present invention, in which the fish collecting box is not shown.

[0051] Figure 2 This is a top view of the first embodiment of the present invention.

[0052] Figure 3 This is a structural diagram of the sub-bridge assembly in Example 1 of the present utility model.

[0053] Figure 4 This is a schematic diagram of the changes in the anchoring structure when encountering wind and waves in Example 1 of the present utility model.

[0054] Figure 5 This is a structural diagram of the fish inlet channel in Example 1 of the present invention.

[0055] Figure 6 This is a structural diagram of another embodiment of the fish inlet channel in Example 1 of the present invention.

[0056] Figure 7 This is a structural diagram of another embodiment of the fish inlet channel in Example 1 of the present invention.

[0057] Figure 8 This is a structural diagram of the fish collecting box in Example 1 of the present utility model.

[0058] Figure 9 This is a schematic diagram of the connection structure between the fish collecting box and the fish attracting channel in the first embodiment of the present invention.

[0059] Figure 10 This is a schematic diagram of the layout structure of the fish attracting channel in Example 1 of the present utility model.

[0060] Figure 11 This is a structural diagram of the second embodiment of the present utility model.

[0061] Figure 12 This is a control principle diagram of Example 2 of the present utility model.

[0062] Figure 13 This is a schematic diagram of the connection structure of the fish collecting box in Example 3 of the present utility model.

[0063] Figure 14 This is a schematic diagram of the connection structure between the fish collecting box and the closing motor in Example 3 of the present utility model.

[0064] Figure 15 This is a top view of the fourth embodiment of the present invention.

[0065] Figure 16 This is a structural diagram of the intranet component in Example 4 of the present utility model.

[0066] Figure 17 This is a structural diagram of embodiment 5 of the present utility model.

[0067] Figure 18 This is a structural diagram of another implementation method of the fifth embodiment of the present utility model.

[0068] Figure 19 This is a structural diagram of the one-way sealing door in Example 5 of the present utility model.

[0069] Figure 20 This is a structural diagram of embodiment 6 of the present utility model.

[0070] The numbers and letters in the figure represent the corresponding component names:

[0071] 10. Support pontoon; 11. Inner ring rod; 12. Outer ring rod; 13. Connector; 14. Float; 15. Locking piece; 16. Anchoring structure; 161. First pull rope; 162. Heavy anchor; 163. Second pull rope; 164. Floating counterweight; 17. Fixed pull rope; 18. Feed dispenser; 20. Peripheral net; 30. Fish inlet; 31. Fish inlet guide net; 32. First support ring; 33. Fish barrier; 34. Fish outlet; 35. Second support ring; 40. Fish collection box; 41. Net cage; 411. One-way fish inlet; 41 2. Fish unloading net mouth; 413. Sealing pull rope; 42. Inflatable buoy; 43. Fish unloading counterweight; 44. Monitoring camera; 441. Remote server; 442. Closing motor; 443. Closing rope; 50. Fish attracting channel; 51. Fish attracting and guiding net; 52. Support frame; 53. One-way guide entrance; 54. Guide counterweight; 60. Inner net assembly; 61. Inner pontoon; 62. Inner enclosure; 621. Dense net area; 622. Sparse net area; 63. Positioning pull rope; 70. Feeding channel; 80. Blocking net; 81. One-way sealing door; 82. Counterweight rod. DETAILED DESCRIPTION

[0072] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0073] Example 1

[0074] like Figures 1 to 10As shown, an embodiment of the present invention provides an integrated system for intelligent ecological fish farming and fishing and fishery resource restoration in marine lakes, including: a supporting pontoon 10, used to float on the water surface to form a fishing area in a predetermined water area; an outer net 20, connected to the supporting pontoon 10 to form a temporary fishing and breeding area in the fishing area, the outer net 20 is densely covered with mesh holes of a predetermined aperture to allow fish below a predetermined size to pass freely and to restrict fish above a predetermined size within the outer net 20, and the outer net 20 is provided with a plurality of fish inlet channels 30, which are used to allow fish to enter the temporary fishing and breeding area from outside the outer net 20 in one direction; a plurality of fish collecting boxes 40 are arranged around the outer net 20, the fish collecting boxes 40 are semi-floating or suspended in the water, and are detachably connected to fish attracting channels 50 extending into the temporary fishing and breeding area, the fish attracting channels 50 are used to allow fish above a predetermined size to enter in one direction, and the fish attracting channels 50 are densely covered with mesh holes of a predetermined aperture.

[0075] Specifically, such as Figure 1 and Figure 2 As shown, the supporting floating bridge 10 includes several sub-bridge components connected end to end to form a closed or semi-closed ring. Preferably, multiple sub-bridge components are used to form a closed ring. In some embodiments, if a semi-closed ring is formed, it is necessary to tighten the unclosed part by using steel wire or pull rod.

[0076] like Figure 3 As shown, the sub-bridge assembly includes: an inner ring rod 11 and an outer ring rod 12 arranged at relative intervals, an installation space is formed between the inner ring rod 11 and the outer ring rod 12, and both ends of the inner ring rod 11 and the outer ring rod 12 are respectively provided with mutually matching connecting joints 13; a number of floats 14 arranged in the installation space; and a locking piece 15 for tightening the floats 14 and fixing them relatively in the installation space.

[0077] Among them, the inner ring rod 11 and the outer ring rod 12 can be made of stainless steel wire or arc-shaped steel pipe, and the connecting joint 13 includes a male joint and a female joint that cooperate with each other. The male joint and the female joint can be plugged into each other and fixed by a bolt assembly. The form and direction of the male joint and the female joint can be set according to actual needs, as long as they can be stably connected and fixed to each other. The float 14 can be, for example, a waste oil barrel, a waste plastic barrel, etc., but it is necessary to ensure that it has good sealing properties to ensure that it will not enter water and maintain good buoyancy, and all floats 14 preferably have the same size specifications; the locking piece 15 preferably adopts a relatively set semicircular clamp, and the locking piece 15 is also fixed to the inner ring rod 11 and the outer ring rod 12 by bolts. Of course, the two semicircular clamps can also be connected to each other by a bolt assembly to lock and fix the float 14. Each float 14 is correspondingly provided with 2-4 groups of locking pieces 15 to ensure that the float 14 has sufficient stability after being fixed.

[0078] The inner ring rod 11, the outer ring rod 12 and the locking piece 15 cooperate with each other to fix the float and form an integrated structure. The relative connection of adjacent sub-bridge components can be easily achieved through the connecting joint 13. After several sub-bridge components are connected to each other to form a whole, a large buoyancy can be formed through a sufficient number of floats 14, thereby achieving support and fixation of structures such as the outer net 20. At the same time, a counterweight stabilization block can also be symmetrically arranged at the bottom of the sub-bridge component. The counterweight support block can be connected to the inner ring rod 11, or to the outer ring rod 12, or fixed to the connecting piece between the inner ring rod 11 and the outer ring rod 12. The counterweight support block is fixed on the connecting piece to further improve the stability and wind and wave resistance of the sub-bridge component.

[0079] The outer net 20 is fixed to the outer ring rod 12 by means of steel wire tying, wrapping and sewing. Usually, in order to prevent fish from jumping out from above the floating bridge, the height of the outer net is usually set to be 1-3 meters above the water surface. This part of the outer net can be supported and fixed by vertical rods fixed on the outer ring rod 12; in addition, when used in shallow waters, the outer net 20 can be extended directly to the bottom of the water, and when used in deeper waters, a bottom net needs to be set at the bottom of the outer net 20 for enclosing to prevent fish from escaping from the bottom of the net.

[0080] In order to improve the stability of the supporting pontoon 10, at least three groups of evenly distributed anchoring structures 16 are connected to the supporting pontoon 10. The anchoring structure 16 includes: a heavy anchor 162 connected to the supporting pontoon 10 through a first pull rope 161 and forming an inclined anchoring state; and a floating counterweight block 164 connected to the middle part of the first pull rope 161 through a second pull rope 163 to form a deformed bending section of the first pull rope 161. The deformed bending section is used to float and change when the supporting pontoon 10 is pushed up by wind and waves.

[0081] refer to Figure 4 , Figure 4 The figure shows a schematic diagram of the changes in the anchoring structure 16 when the supporting pontoon 10 encounters wind and waves. Under normal conditions, the first pull rope 161 forms a bent deformed curved section under the pull of the second pull rope 163 and the floating counterweight block 164. When encountering wind and waves, the supporting pontoon 10 will rise with the waves. At this time, one end of the first pull rope 161 will be pulled upward, thereby driving the deformed curved section to be pulled toward a straightened state, thereby causing the second pull rope 163 and the floating counterweight block 164 to rise, providing the supporting pontoon 10 with a lifting range to buffer the impact of wind and waves.

[0082] The supporting pontoon 10 is anchored by cooperating with multiple heavy anchors 162, so that the supporting pontoon 10 can be restricted in a relatively fixed position. The floating counterweight 164 can further anchor the supporting pontoon 10 and improve the stability of the supporting pontoon 10. On the other hand, when there are strong winds and waves, the supporting pontoon 10 will rise and fall with the water surface. Since a deformable curved section is formed on the first pull rope 161, when the supporting pontoon 10 rises, the first pull rope 161 and the floating counterweight 164 will rise synchronously, causing the deformable curved section to change in the direction of straightening, thereby making the supporting pontoon 10 more stable during the rising and falling process.

[0083] The outer net 20 is provided with a plurality of fish inlets for communicating with the fish inlet channels 30. The fish inlet channels 30 are arranged on the inner side of the outer net 20, and multiple groups are arranged around the outer net 20 in the horizontal direction, and multiple groups are aligned or offset in the vertical direction to meet the fishing needs of waters of different depths. Figure 5 As shown, the fish inlet channel 30 includes: a fish inlet guide net 31, which is in the shape of a cylindrical channel. The first end of the fish inlet guide net 31 is connected to the fish inlet, and the second end is open and extends into the temporary fishing and breeding area; a plurality of first support rings 32 arranged in the fish inlet guide net 31; and a conical fish barrier 33 arranged near the second end of the fish inlet guide net 31. The fish barrier 33 is connected to the first support ring 32 or the fish inlet guide net 31 and is in a suspended state to form a fish outlet 34 between the fish inlet guide net 31 and the inner wall.

[0084] The fish inlet guide net 31 and the fish blocking barrier 33 are preferably woven with water-tight nylon wire to reduce the vigilance of the fish school. A first flange ring can also be provided at the end of the fish inlet guide net 31, and a second flange ring or several flange connecting blocks can be provided at the fish inlet. The fish inlet channel 30 and the peripheral net 20 are detachably connected by bolts through the first flange ring and the second flange ring or the flange connecting block, so that different models of fish inlet channels 30 can be replaced according to different water conditions, and it is also convenient to repair or replace them when damaged. In some embodiments, the front end of the fish inlet guide net 31 can also be set to a concave cone to more conveniently guide the fish school to enter. The fish inlet guide net 31 is supported by the first support ring 32 to form a stable channel structure. The fish blocking barrier 33 is connected and fixed to the first support ring or the fish inlet guide net 31 by a pull rope or a connecting rod. The fish outlet 34 is formed by the conical fish blocking barrier 33, making it difficult for the fish school to swim in the opposite direction, thereby realizing the one-way restriction effect of the fish inlet channel 30.

[0085] like Figure 6 As shown, Figure 6Another embodiment of a fish inlet channel 30 is provided. The fish inlet guide net 31 is generally conical in shape. A detachable flange is provided at the first end of the fish inlet guide net 31 so that it can be replaced as needed. The second end of the fish inlet guide net 31 is supported by a first support ring 32 to form a fish outlet 34. Several groups of first support rings 32 can also be provided in the fish inlet guide net 31 for support as needed. Several support rods can be provided between the connected first support rings 32 to keep the fish inlet guide net 32 ​​in a stably open state. A second support ring 35 can also be provided in the middle of the fish inlet guide net 31. The second support ring 35 is connected to the fish inlet guide net 31 by a dense net, so that a two-level fish guide cavity is formed in the fish inlet guide net to further restrict the fish from swimming out. This method is more suitable for smaller fish in lakes.

[0086] like Figure 7 As shown, Figure 7 Another embodiment of a fish inlet channel 30 is provided. The interior of the fish inlet guide net 31 can also be supported and fixed by a plurality of first support rings 32 and support rods. The fish barrier 34 is connected to the outside of the fish inlet guide net 31 by a connecting rod. The connecting rod can also be welded and fixed to a flange or other second support ring 32 provided at the first end of the fish inlet guide net 31 by a plurality of support rods. A fish outlet 34 is formed between the fish barrier 33 and the outermost second support ring 32 for fish to swim through. This method is more suitable for larger fish in the ocean.

[0087] like Figure 8 As shown, the fish collecting box 40 includes: a net cage 41, a first side of the net cage 41 is provided with a one-way fish attracting inlet 411 connected to the fish attracting channel 50, the one-way fish attracting inlet 411 is sunken below the water surface, and a second side of the net cage 41 is provided with a fish unloading net opening 412, the fish unloading net opening 412 is controlled to be tightened or opened by a sealing pull rope 413; a plurality of inflatable floats 42 arranged on the inner wall of the net cage 41, which are used to compress the space inside the net cage 41 after inflation to force the fish to swim towards the fish unloading net opening 412; and a fish unloading counterweight block 43 detachably connected to the second side of the net cage 41, which causes the fish unloading net opening 412 to tilt downward when the fish unloading counterweight block 43 is connected to the net cage 41.

[0088] The one-way fish inlet 411 can adopt a structure similar to the fish inlet channel 30, or other structures that can achieve one-way fish entry, and there is no limitation here. Several steel rings can also be set in the net cage 41 for support and fixation, and in order to facilitate the lifting of the fish collecting box 40, a lifting ring is also connected to the steel ring to fix the hook, and a float can also be connected to the top of the net cage 41 so that the fish collecting box 40 can be in a floating state; an inflation / deflation port is provided on the inflatable float 42, and an inflation pump is connected to the air pipe, and an inflation / deflation valve is also connected to the air pipe. The inflation valve can be opened to inflate the inflatable float 42 through the inflation pump to expand the inflatable float 42, and the gas in the inflatable float 42 can be discharged after the deflation valve is opened.

[0089] The inflatable floats 42 are usually arranged at the four corners of the net cage 41 and extend from one side of the net cage 41 to the other side. In some embodiments, the two inflatable floats 42 at the top of the net cage 41 can be replaced by hard floats, and the two inflatable floats 42 at the bottom are inflated to change the buoyancy and internal fish storage space.

[0090] In some embodiments, in order to facilitate fish unloading, a connecting flange can be set on the fish unloading net mouth 412, and the connecting flange is connected to the fish unloading container, so that the fish unloading net mouth 412 cannot fall off from the fish unloading container, thereby preventing leakage during the fish unloading process. At the same time, a fish unloading mouth can also be set on the side of the net cage 41, and the fish unloading mouth is also controlled to be tightened or loosened by a sealing pull rope 413 to meet different fish unloading needs.

[0091] A fish storage space is formed in the net cage 41. After passing through the fish attracting channel 50, the fish enter the net cage 41 from the one-way fish attracting inlet 411. The suspension depth of the fish collecting box 40 can be controlled by controlling the amount of air in the inflatable float 42. The fish can be unloaded directly in the water, or the fish collecting box 40 can be removed from the peripheral net 20 and hoisted out of the water for unloading. When unloading the fish in the water, the fish unloading net opening 412 is connected to the fish collecting container. After the fish unloading net opening 412 is opened by the sealing pull rope 413, the fish can swim into the fish collecting container from the fish unloading net opening 412. At the same time, the inflatable float 42 can be continued to be inflated. When the fish collecting box 40 floats up, the fish storage space therein is reduced, forcing the fish to swim out from the fish unloading net opening 412, thereby improving the fish unloading efficiency. In addition, the fish unloading counterweight 43 can be connected to the net cage 41 to tilt the net cage 41 downward to dump the fish into the fish collecting container more quickly.

[0092] The outer net 20 is provided with a plurality of fish outlets connected to the fish attracting channel 50, and the fish outlets are arranged close to the water surface so that the fish collecting box 40 can float close to the water surface after being connected. Figure 9As shown, the fish attracting channel 50 includes: a fish attracting guide net 51, a first end of which is connected to the fish outlet and is detachably connected to the one-way fish attracting inlet 411, and a second end extends to the temporary fishing and breeding area, the fish attracting guide net 51 is densely covered with mesh holes of predetermined aperture, and a supporting frame 52 is provided inside the fish attracting guide net 51; a number of one-way guide inlets 53 arranged on the fish attracting guide net 51 for fish to enter; and a guide counterweight 54 arranged near the second end of the fish attracting guide net 51.

[0093] The support frame 52 forms a stable channel for fish to pass through in the fish guide net 51, and the guide counterweight 54 makes the fish guide net 51 as a whole droop, that is, the fish guide net 51 can be extended to waters of different depths, and then the fish are introduced through the one-way guide inlet 53, so that the fish entering the fish guide net 51 can only swim along the fish guide net 51 to the inlet and finally enter the fish collecting box 40, thereby realizing the collection and storage of the fish.

[0094] In one embodiment, Figure 10 As shown, the one-way guide inlet 53 is configured to be trumpet-shaped, and the area between the ends of the trumpet is L1, and a one-way trumpet is provided corresponding to each one-way guide inlet 53 to restrict the one-way swimming of the fish school. One end of the one-way trumpet is connected to the supporting frame 52, and the other end is fixed to the fish guide net 51 by a pull rope. The diameter of the fish guide net 51 is L2, and the diameter of the small end of the one-way trumpet is L3, which satisfies the following relationship: L1=10*L2, L3=1 / 3*L2. Usually, when used in freshwater lakes, L2 is set to 1m, and when used in the ocean, L2 is set to 3m.

[0095] The system can be arranged in a fishing area set in a lake or ocean. During the swimming process, the fish school can enter the temporary fishing and breeding area surrounded by the outer net 20 through the fish inlet channel 30. Due to the one-way restriction of the fish inlet channel 30, it is difficult for the fish school to return from the fish inlet channel 30. At the same time, it is restricted by the mesh of the predetermined aperture. Smaller fish can enter and exit freely, while larger fish, which are the target of fishing, cannot enter and exit. When the fish school is in the temporary fishing and breeding area, it will gradually enter the fish collecting box 40 through the fish attracting channel 50. Similarly, the smaller fish will swim back into the temporary fishing and breeding area through the mesh on the fish attracting channel 50, while the larger fish, which are the target of fishing, cannot enter and exit. Due to the one-way restriction, it is difficult for larger fish to swim back to the temporary fishing and breeding area through the fish guide channel 50, so that the fish entering the fish collection box 40 are basically larger fish. Moreover, since the fish collection box 40 is semi-floating or suspended in the water, the fish can survive for a long time after entering the fish collection box 40, thereby achieving the purpose of catching large fish and releasing small fish, greatly reducing the capture of small fish and fry, thereby reducing damage to fishery resources and facilitating the restoration of fishery resources. After collecting fish for a period of time, the fish collection box 40 can be removed from the outer net 20 and hoisted out for unloading, or the fish can be transferred from the fish collection box 40 to a transport container in the water as needed.

[0096] On the other hand, since large fish have greater economic value, the growth rate of large fish after being fed with the same amount of feed is significantly smaller than that after being fed with small fish. Therefore, only catching large fish can not only obtain greater economic benefits, but also leave more food for small fish, bringing better economic benefits in the future. At the same time, the present invention adopts a passive fishing method. Only when the fishery resources are restored to a better state can enough fish be caught, thereby forcing relevant practitioners to protect and restore fishery resources before they can make a profit, which is conducive to cultivating the resource protection awareness of relevant practitioners. From a long-term perspective, it has far-reaching significance for the protection of fishery resources and ecological restoration.

[0097] Example 2

[0098] The difference between this embodiment and the first embodiment is that: in this embodiment, Figure 11 and Figure 12 As shown, a plurality of feed dispensers 18 are provided on the supporting pontoon 10 for automatically dispensing fish feed. The feed dispenser 18 can adopt an existing screw extruder, which has a feed storage hopper for storing fish feed. A power supply is also provided on the supporting pontoon 10 for supplying power to the feed dispenser 18. The feed dispenser 18 is connected to a controller for controlling the feed dispenser 18 to dispense fish feed at a fixed time. Since a screw extruder is adopted, large pieces of feed can be squeezed into small particles during dispensing without clogging.

[0099] The controller is also connected to a feed shortage sensor and a remote alarm. The feed shortage sensor is arranged in the feed storage bucket and is used to detect whether the fish feed stored in the feed storage bucket is sufficient. The feed shortage sensor can adopt a weighing sensor. When the detected weight is less than a predetermined weight, it is judged that there is a shortage of feed. A photoelectric sensor can also be adopted. The light receiver and the light transmitter are relatively arranged on both sides of the feed delivery bucket. When the light receiver receives the light signal, it is judged that there is a shortage of feed. The remote alarm is arranged in the monitoring room and is communicated with the controller. For example, an audible and visual alarm can be used. When the feed shortage sensor determines that there is a shortage of feed, the controller controls the remote alarm to send an alarm signal to remind the fishermen to replenish the fish feed in time.

[0100] Example 3

[0101] The difference between this embodiment and other embodiments is that: in this embodiment, Figure 13 and Figure 14 As shown, a plurality of monitoring cameras 44 are provided on the fish collecting box 40, and the monitoring cameras 44 are in communication with a remote server 441. The monitoring cameras 44 take pictures of the fish entering the fish collecting box 40 and upload the pictures to the remote server 441 to determine the number and type of the fish. The monitoring cameras 44 are arranged around the fish collecting box 40 so that the fish can be observed in all directions in order to count the number and type of the fish.

[0102] The supporting pontoon 10 is equipped with several closing motors 442 corresponding to the fish collection boxes 40. The controllers of the closing motors 442 are in communication with a remote server 441. The power output of the closing motors 442 is connected to a closing rope 443 for controlling the opening size of the one-way fish attracting inlet 411. When the remote server 441 determines that a predetermined fish species has appeared, the closing motors 442 are activated to reel in the closing rope 443, thereby reducing the opening size of the one-way fish attracting inlet 411. When it is determined that a valuable fish species has entered the fish collection box 40, the closing motors 442 drive the closing rope 443 to reel in, reducing the opening size of the one-way fish attracting inlet 411 and minimizing the chance of the valuable fish species escaping.

[0103] In some embodiments, a plurality of monitoring cameras 44 may be provided on the fish inlet channel 30 , and a closing motor 442 and a closing rope 443 may be provided simultaneously to control the fish inlet channel 30 to tighten or loosen the size of the entrance of the fish inlet channel 30 .

[0104] Example 4

[0105] The difference between this embodiment and other embodiments is that: in this embodiment, Figure 15 and Figure 16As shown, an inner net assembly 60 is also provided near the middle of the outer net 20, and the inner net assembly 60 includes: an inner floating bridge 61, which is used to float on the water surface to form a breeding area in a predetermined water area; and an inner enclosure net 62, which is connected to the inner floating bridge 61 to form a fry rearing area in the breeding area. The inner enclosure net 62 is sequentially arranged with a number of dense net areas 621 and sparse net areas 622 from top to bottom, and the mesh openings of the dense net areas 621 and the sparse net areas 622 are both less than or equal to the predetermined aperture; a feeding channel 70 is provided between the supporting floating bridge 10 and the inner floating bridge 61, and the feeding channel 70 is used to feed live bait into the fry rearing area, and the sparse net area 622 is used for free entry and exit of live bait; at least three fixed pull ropes 17 connected end to end are provided on the supporting floating bridge 10, and the inner floating bridge 61 is located in the space enclosed by the fixed pull ropes 17, and the inner floating bridge 61 is connected to the fixed pull ropes 17 by a number of positioning pull ropes 63.

[0106] The structure of the inner pontoon 61 is the same as that of the supporting pontoon 10, with the only difference being that the overall size is smaller than that of the supporting pontoon 10 and only occupies a small area in the middle of the supporting pontoon 10. The inner fence 62 can also be fixed to the inner pontoon 61 by stitching, tying, riveting, etc. The feeding channel 70 can, for example, adopt an inclined feeding barrel, which is fixed to the supporting pontoon 10 and the inner pontoon 61 by a bracket or the like.

[0107] By cooperating with the shaping rope 17 and the positioning rope 63, the supporting pontoon 10 and the inner pontoon 61 can form a relatively stable integrated structure, and the inner pontoon 61 can remain in the middle area of ​​the supporting pontoon 10. The inner net 62 can shelter smaller fish, and live bait can be fed into the inner net 62 through the feeding channel 70. Smaller fish can enter the inner net 62 to avoid attacks from larger fish, and can also grow safely in the inner net 62, which is beneficial to the ecological restoration of fishery resources. The set sparse net area 622 can also allow live bait to swim to temporary fishing and breeding areas to feed the fish therein.

[0108] Example 5

[0109] The difference between this embodiment and other embodiments is that: in this embodiment, Figures 17 to 19 As shown, it also includes a block net 80, which surrounds several supporting pontoons 10, or blocks several supporting pontoons 10 on the water bank, and a number of one-way sealing doors 81 are provided on the side of the block net 80 facing the water flow direction; the one-way sealing door 81 is used to open or close the opening opened on the block net 80, and the one-way sealing door 81 can be opened toward the inside of the block net 80 under the push of the water flow, and a counterweight rod 82 is provided on the one-way sealing door 81 for closing the opening when the water flow push is lost.

[0110] like Figure 15 As shown, Figure 15FIG. 1 shows the arrangement of the net 80 when the supporting pontoon 10 is arranged near the coast or lakeshore. At this time, both ends of the net 80 are connected and arranged near the coast or lakeshore so that the fish can also be enclosed in the net 80 after the tide recedes. Figure 16 As shown, Figure 16 The diagram shows the arrangement of the barrier net 80 when the supporting pontoon 10 is arranged far away from the coast or lakeshore. At this time, the barrier net 80 is in a closed circle or square shape and surrounds multiple supporting pontoon bridges 10.

[0111] The one-way sealing door 81 is arranged on the inner side of the barrier net 80, and its top is connected and fixed to the barrier net 80 through a connecting plate. The size of the one-way sealing door 81 is larger than the size of the opening to ensure that the one-way sealing door 81 can completely close the opening. The one-way sealing door 81 is supported by a dense mesh, so that the opening and closing processes can be smoothly implemented.

[0112] Since fish tend to follow the direction of water flow, when the water flow rate is obvious, such as high tide and low tide, the water flow will push open the one-way sealing door 81, and the fish can enter the net 80 from the opening on the net 80. When the water flow is relatively stable, the one-way sealing door 81 will close the opening under the action of the counterweight rod 82, restricting the fish within the range of the net 80, thereby making the fish more concentrated and easier to enter the outer net 20, thereby improving fishing efficiency.

[0113] Example 6

[0114] The difference between this embodiment and the fifth embodiment is that: in this embodiment, Figure 20 As shown, a feed dispenser 18 is also provided near the one-way sealed door 81 for delivering bait to lure fish, so as to more conveniently concentrate the fish into the net 80 and make the area within the net 80 a habitat and breeding ground for the fish, thereby achieving ecological balance and restoration of fishery resources. For example, a small floating bridge can be provided next to the net 80 to carry the feed dispenser 18.

[0115] The above embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that those skilled in the art will be able to make various modifications and improvements without departing from the spirit of the present invention. These modifications and improvements are equivalent to those made to the above embodiments based on the essential technology of the present invention and fall within the scope of protection of the present invention.

Claims

1. An integrated system for intelligent ecological fish farming and fishing and fishery resource restoration in oceans and lakes, characterized by: include: a supporting pontoon for floating on the water surface to form a fishing area within a predetermined water area; an outer net connected to the supporting pontoon to form a temporary fishing and breeding area within the fishing area, the outer net being densely covered with mesh holes of a predetermined diameter to allow fish below a predetermined size to pass freely and to confine fish above a predetermined size within the outer net, and the outer net being provided with a plurality of fish entry channels for allowing fish to enter the temporary fishing and breeding area from outside the outer net in a one-way manner; A plurality of fish collecting boxes are arranged around the outer net, the fish collecting boxes are semi-floating or suspended in the water, and are detachably connected to a fish attracting channel extending to the temporary fishing and breeding area, the fish attracting channel allows fish above a predetermined size to enter in one direction, and the fish attracting channel is densely covered with mesh holes of a predetermined aperture.

2. The integrated system for intelligent ecological fish farming and fishing and fishery resource restoration in oceans and lakes according to claim 1 is characterized in that: The supporting floating bridge comprises a plurality of sub-bridge assemblies connected end to end to form a closed or semi-closed ring, and the sub-bridge assemblies include: An inner ring rod and an outer ring rod are relatively spaced apart, an installation space is formed between the inner ring rod and the outer ring rod, and both ends of the inner ring rod and the outer ring rod are respectively provided with connecting joints that cooperate with each other; a plurality of floating barrels arranged in the installation space; and A locking piece is used to tighten the float barrel and relatively fix it in the installation space.

3. The integrated system for intelligent ecological fish farming and fishing and fishery resource restoration in oceans and lakes according to claim 1 or 2, characterized in that: The supporting pontoon is further connected to at least three groups of evenly distributed anchoring structures, the anchoring structures comprising: A heavy anchor connected to the supporting pontoon via a first pull rope and forming an inclined anchoring state; and A floating counterweight block is connected to the middle part of the first pull rope through a second pull rope to form a deformable curved section of the first pull rope, and the deformable curved section is used to float and change when the supporting pontoon is pushed up by wind and waves.

4. The integrated system for intelligent ecological fish farming and fishing and fishery resource restoration in oceans and lakes according to claim 1 is characterized in that: The outer net is provided with a plurality of fish inlets for communicating with the fish inlet channel, and the fish inlet channel includes: a fish inlet guide net in the shape of a cylindrical channel, wherein a first end of the fish inlet guide net is connected to the fish inlet, and a second end is open and extends into the temporary fishing and breeding area; a plurality of first support rings arranged in the fish guide net; and, A cone-shaped fish barrier is provided near the second end of the fish inlet guide net. The fish barrier is connected to the first support ring or the fish inlet guide net and is suspended to form a fish outlet between the barrier and the inner wall of the fish inlet guide net.

5. The integrated system for intelligent ecological fish farming and fishing and fishery resource restoration in oceans and lakes according to claim 1 is characterized in that: The fish collecting box comprises: A net cage, wherein a one-way fish attracting inlet is provided on a first side of the net cage and is connected to the fish attracting channel, the one-way fish attracting inlet is sunk below the water surface, and a fish unloading net opening is provided on a second side of the net cage, the fish unloading net opening being controlled to be tightened or opened by a sealing pull rope; a plurality of inflatable floats arranged on the inner wall of the net cage, used to compress the space inside the net cage after inflation to force the fish to swim towards the fish unloading net port; and A fish unloading counterweight block is detachably connected to the second side of the net cage, and when the fish unloading counterweight block is connected to the net cage, the fish unloading net opening is tilted downward.

6. The integrated system for intelligent ecological fish farming and fishing and fishery resource restoration in oceans and lakes according to claim 5 is characterized in that: The outer net is provided with a plurality of fish outlets connected to the fish attracting channel, and the fish attracting channel includes: A fish guide net, a first end of which is connected to the fish outlet and detachably connected to the one-way fish guide inlet, and a second end of which extends to the temporary fishing and breeding area, the fish guide net being densely covered with mesh holes of predetermined apertures and having a supporting frame disposed therein; a plurality of one-way guide inlets provided on the fish guide net for fish to enter; and, A guide counterweight is provided near the second end of the fish guide net.

7. The integrated system for intelligent ecological fish farming and fishing and fishery resource restoration in oceans and lakes according to claim 1 is characterized in that: An intranet component is also provided near the middle of the peripheral network, and the intranet component includes: an inner pontoon, adapted to float on the water surface to form a feeding area in a predetermined water area; and An inner enclosure net is connected to the inner floating bridge to form a fry rearing area within the rearing area, wherein the inner enclosure net is sequentially provided with a plurality of dense mesh areas and sparse mesh areas from top to bottom, wherein the mesh openings of the dense mesh areas and the sparse mesh areas are both smaller than or equal to a predetermined aperture; A feeding channel is provided between the supporting pontoon and the inner pontoon, the feeding channel is used to feed live bait into the fry rearing area, and the dredging area is used to allow the live bait to enter and exit freely; The supporting pontoon is provided with at least three end-to-end fixed pull ropes, the inner pontoon is located in a space enclosed by the fixed pull ropes, and the inner pontoon is connected with the fixed pull ropes through a plurality of positioning pull ropes.

8. The integrated system for intelligent ecological fish farming and fishing and fishery resource restoration in oceans and lakes according to claim 6 is characterized in that: The fish collecting box is provided with a plurality of monitoring cameras, which are connected to a remote server for communication. The monitoring cameras take pictures of the fish entering the fish collecting box and upload the pictures to the remote server to determine the number and type of the fish.

9. The integrated system for intelligent ecological fish farming and fishing and fishery resource restoration in oceans and lakes according to claim 8 is characterized in that: The supporting pontoon is provided with a number of closing motors corresponding to the fish collecting boxes. The controllers of the closing motors are communicatively connected to the remote server. The power output end of the closing motor is connected to a closing rope for controlling the size of the opening of the one-way fish attracting inlet. When the remote server determines that a predetermined type of fish appears, the closing motor is controlled to operate to reel in the closing rope to reduce the opening of the one-way fish attracting inlet.

10. The integrated system for intelligent ecological fish farming and fishing and fishery resource restoration in oceans and lakes according to claim 1 is characterized in that: It also includes a barrier net, which surrounds the plurality of supporting pontoons or blocks the plurality of supporting pontoons on the water bank, and a plurality of one-way sealing doors are provided on the side of the barrier net facing the water flow direction; The one-way sealing door is used to open or close the opening on the barrier net. The one-way sealing door can be opened toward the inside of the barrier net under the push of water flow, and a counterweight bar is provided on the one-way sealing door to close the opening when the water flow push is lost.

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