High-survival-rate intelligent ecological fish catching and unloading device

Abstract

The high-survival-rate intelligent ecological fish catching and unloading device comprises a fish collecting box connected to a peripheral net used for forming a culture area in a surrounding mode, the fish collecting box semi-floats or suspends in water, one side of the fish collecting box is provided with a one-way fish guiding inlet, and the other side of the fish collecting box is provided with a fish unloading net opening; a fish storage space is formed in the fish collecting box; the fish guiding channel is detachably connected to the fish collecting box, the fish guiding channel extends into a culture area, and meshes with preset apertures are densely distributed in the fish guiding channel so that fishes with the size smaller than the preset body size can freely pass through the fish guiding channel, fishes with the size larger than the preset body size can be limited in the fish guiding channel, and the fish guiding channel is communicated with the fish collecting box. The fish guiding channel is provided with a plurality of one-way guiding inlets 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 intelligent ecological fish fishing and unloading device with a high survival rate. Background Art

[0002] Fence aquaculture involves using a fence to enclose a specific area of ​​water to form a farming area, where fish are concentrated. This facilitates on-demand fishing by fishermen, allowing them to grow and reproduce stably within the area, generating stable economic returns for the fishermen. Currently, fishermen typically cast nets within the enclosures, catching fish of varying sizes together, particularly large numbers of small fish and fry. Furthermore, dragging and other actions during the fishing process can easily cause fish deaths, resulting in a high mortality rate. The value of the dead fish is also significantly reduced, while the economic value of small fish and fry is also low. Furthermore, fishing damages fishery resources, hindering their restoration. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, the purpose of the utility model is to provide a high-survival rate intelligent ecological fishing and fish unloading device, which has the advantages of improving the survival rate of fishing and facilitating 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 high survival rate intelligent ecological fishing and unloading device is provided, comprising:

[0006] A fish collecting box connected to the outer net used to enclose the aquaculture area, the fish collecting box being semi-floating or suspended in the water, having a one-way fish inlet on one side and a fish net unloading port on the other side, and a fish storage space formed inside the fish collecting box;

[0007] A fish attracting channel detachably connected to the fish collecting box extends into the breeding area and is densely covered with mesh holes of a predetermined aperture to allow fish below a predetermined size to pass freely and restrict fish above a predetermined size within the channel. The fish attracting channel is also provided with a number of one-way guide inlets for fish above a predetermined size to enter in one direction.

[0008] By implementing the above technical solution, when the fish school is in the breeding area, it will gradually enter the fish collection box through the fish attracting channel. The smaller fish will re-enter the breeding area through the mesh on the fish attracting channel. However, due to the one-way restriction of the fish attracting channel, it is difficult for the larger fish to re-swim back to the breeding area through the fish attracting channel. As a result, the fish that enter the fish collection box are basically larger fish. Moreover, since the fish collection box is semi-floating or suspended in the water, the fish can survive for a longer time after entering the fish collection 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 facilitating the restoration of fishery resources. After collecting fish for a period of time, the fish collection box can be disassembled from the outer net and hoisted out for unloading, or the fish can be transferred from the fish collection box to a transport container in the water as needed.

[0009] 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.

[0010] In some exemplary embodiments, the fish collection box comprises:

[0011] A net cage, wherein the 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 the fish unloading net opening is provided on a second side of the net cage, and the fish unloading net opening is controlled to be tightened or opened by a sealing pull rope;

[0012] 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

[0013] 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.

[0014] 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.

[0015] In some exemplary embodiments, the inflatable floats are provided on both sides of the bottom of the cage, and hard floats are provided on both sides of the top of the cage.

[0016] When the above technical solution is implemented, since the top part has more contact with the outside world, it is not easy to be damaged when it is set as a hard floating column.

[0017] In some exemplary embodiments, the cage is further provided with a plurality of auxiliary fish unloading ports along its circumference.

[0018] The above technical solution is implemented to facilitate faster fish unloading and meet different fish unloading methods.

[0019] 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:

[0020] 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 breeding area, the fish guide net being densely covered with mesh holes of a predetermined aperture, and a supporting frame being provided inside the fish guide net;

[0021] a plurality of one-way guide inlets provided on the fish guide net for fish to enter; and,

[0022] A guide counterweight is provided near the second end of the fish guide net.

[0023] To implement the above technical solution, a stable channel is formed in the fish guide net through the support 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 through the one-way guide inlet, so that the fish entering the fish guide net can only swim along the fish guide net to the fish outlet and finally enter the fish collecting box, thereby realizing the collection and storage of fish.

[0024] In some exemplary embodiments, the one-way guide port is in a bell-mouth shape.

[0025] Implementing the above technical solution makes it more convenient to attract fish.

[0026] 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.

[0027] The above technical solution is implemented to count the number and species of fish.

[0028] In some exemplary embodiments, the outer net is supported and connected by a supporting pontoon, and a number of closing motors corresponding to the fish collecting box are provided on the supporting pontoon. The controller of the closing motor is communicatively connected to the remote server, and 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 reel in the closing rope to reduce the opening of the one-way fish attracting inlet.

[0029] 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.

[0030] In summary, compared with the prior art, the present invention has the following beneficial effects:

[0031] The embodiment of the present invention provides a high-survival rate intelligent ecological fishing and fish unloading device. When the fish are in the breeding area, they will gradually enter the fish collecting box through the fish attracting channel. The smaller fish will re-enter the breeding area from the mesh holes on the fish attracting channel. Due to the unidirectional restriction of the fish attracting channel, it is difficult for the larger fish to re-swim back to the breeding area from the fish attracting channel. As a result, 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 longer time after 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 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a structural diagram of Example 1 of the present utility model.

[0033] Figure 2 This is a structural diagram of the fish collecting box in Example 1 of the present utility model.

[0034] Figure 3This is a schematic diagram of the layout structure of the fish attracting channel in Example 1 of the present utility model.

[0035] Figure 4 This is a schematic diagram of the connection structure of the fish collecting box in Example 2 of the present utility model.

[0036] Figure 5 This is a schematic diagram of the connection structure between the fish collecting box and the closing motor in the second embodiment of the present utility model.

[0037] The numbers and letters in the figure represent the corresponding component names:

[0038] 10. Support pontoon; 20. Outer net; 30. Fish outlet; 40. Fish collecting box; 41. Net cage; 411. One-way fish inlet; 412. Fish unloading net outlet; 413. Sealing rope; 414. Auxiliary fish unloading outlet; 42. Inflatable buoy; 421. Hard buoy; 43. Fish unloading counterweight; 44. Surveillance camera; 441. Remote server; 442. Closing motor; 443. Closing rope; 50. Fish inlet; 51. Fish guide net; 52. Support frame; 53. One-way guide inlet; 54. Guide counterweight. DETAILED DESCRIPTION

[0039] 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.

[0040] like Figures 1 to 3 As shown, the utility model provides a high-survival rate intelligent ecological fishing and fish unloading device, comprising: a fish collecting box 40 connected to a peripheral net 20 for enclosing a breeding area, the fish collecting box 40 semi-floating or suspended in the water, one side of the fish collecting box 40 having a one-way fish inlet 411, the other side of the fish unloading net mouth 412, and a fish storage space formed in the fish collecting box 40; a fish attracting channel 50 detachably connected to the fish collecting box 40, the fish attracting channel 50 extending into the breeding area, and the fish attracting channel 50 is densely covered with mesh holes of a predetermined aperture to allow fish below a predetermined size to pass freely, and to confine fish above a predetermined size in the fish attracting channel 50, and the fish attracting channel 50 is provided with a plurality of one-way guide inlets 53 for fish above the predetermined size to enter in one direction.

[0041] Specifically, the outer net 20 is used to enclose and form a breeding area to realize enclosure breeding. The outer net 20 is connected and fixed by a supporting pontoon 10. The supporting pontoon 10 can adopt an existing pontoon structure, which will not be described here, and the supporting pontoon 10 can be restricted by a heavy anchor.

[0042] 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 sunk below the water surface, 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.

[0043] The one-way fish inlet 411 can adopt a structure similar to the fish inlet channel, 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.

[0044] 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 located at the top of the net cage 41 can be replaced by hard floats 421, and the two inflatable floats 42 at the bottom are inflated to change the buoyancy and internal fish storage space. Specifically, the inflatable floats 42 are arranged on both sides of the bottom of the net cage 41, and the hard floats 421 are set on both sides of the top of the net cage 41. Since the top has more contact with the outside world, it is not easy to be damaged when it is set as hard floats 421.

[0045] In some embodiments, in order to facilitate fish unloading, a connecting flange can be provided on the fish unloading net mouth 412, which is connected to the fish unloading container through the connecting flange, 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 number of auxiliary fish unloading mouths 414 can also be provided in the circumference of the net cage 41. The auxiliary fish unloading mouths 414 are also controlled to be tightened or loosened by the sealing pull rope 413 to meet different fish unloading needs.

[0046] 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.

[0047] A plurality of fish outlets 30 connected to the fish attracting channel 50 are provided on the outer net 20. The fish outlets 30 are arranged close to the water surface so that the fish collecting box 40 can float close to the water surface after being connected. As shown in the figure, the fish attracting channel 50 includes: a fish attracting guide net 51, a first end of which is connected to the fish outlet 30 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 apertures, and a supporting frame 52 is provided in the fish attracting guide net 51; a plurality 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.

[0048] 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.

[0049] In one embodiment, Figure 3 As shown, the one-way guide inlet 53 is configured to be trumpet-shaped to facilitate fish attraction. The diameter of the end 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 attracting guide net 51 by a pull rope. The diameter of the fish attracting 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.

[0050] When the fish are in the breeding area, they will gradually enter the fish collection box 40 through the fish guide channel 50. Smaller fish will swim back into the breeding area through the mesh on the fish guide channel 50. However, due to the one-way restriction of the fish guide channel 50, larger fish will find it difficult to swim back to the breeding area through the fish guide channel 50. As a result, the fish that enter 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 disassembled 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.

[0051] 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.

[0052] Example 2

[0053] The difference between this embodiment and other embodiments is that: in this embodiment, Figure 4 and Figure 5 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.

[0054] 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.

[0055] 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. A high survival rate intelligent ecological fishing and unloading device, characterized in that: include: A fish collecting box connected to the outer net used to enclose the aquaculture area, the fish collecting box being semi-floating or suspended in the water, having a one-way fish inlet on one side and a fish net unloading port on the other side, and a fish storage space formed inside the fish collecting box; A fish attracting channel detachably connected to the fish collecting box extends into the breeding area and is densely covered with mesh holes of a predetermined aperture to allow fish below a predetermined size to pass freely and restrict fish above a predetermined size within the channel. The fish attracting channel is also provided with a number of one-way guide inlets for fish above a predetermined size to enter in one direction.

2. The high survival rate intelligent ecological fishing and unloading device according to claim 1 is characterized in that: The fish collecting box comprises: A net cage, wherein the 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 the fish unloading net opening is provided on a second side of the net cage, and the fish unloading net opening is 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.

3. The high survival rate intelligent ecological fishing and unloading device according to claim 2 is characterized in that: The inflatable floating columns are arranged on both sides of the bottom of the mesh cage, and the hard floating columns are arranged on both sides of the top of the mesh cage.

4. The high survival rate intelligent ecological fishing and unloading device according to claim 2 or 3, characterized in that: The circumference of the net cage is also provided with a plurality of auxiliary fish unloading ports.

5. The high survival rate intelligent ecological fishing and unloading device according to claim 1 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 breeding area, the fish guide net being densely covered with mesh holes of a predetermined aperture, and a supporting frame being provided inside the fish guide net; 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.

6. The high survival rate intelligent ecological fishing and unloading device according to claim 1 is characterized in that: The one-way guide inlet is in a trumpet shape.

7. The high survival rate intelligent ecological fishing and unloading device according to claim 1 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.

8. The high survival rate intelligent ecological fishing and unloading device according to claim 7 is characterized in that: The outer net is connected by supporting pontoons, and the supporting pontoons are 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, and 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 move to reel in the closing rope to reduce the opening of the one-way fish attracting inlet.

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