A mandarin fish non-destructive capture device based on bionic structure

Abstract

The utility model discloses a kind of mandarin fish non-destructive capture devices based on bionic structure, it is related to fishing equipment technical field.The utility model includes bionic lure subassembly, buffer channel and temporary rearing subassembly, bionic lure subassembly includes the channel and multiple bionic reefs arranged in water bottom layer, the inner wall of channel is provided with multiple flexible barbs, temporary rearing subassembly includes temporary rearing storehouse and water pump, when water pump starts, channel, buffer channel and storehouse are formed in water bottom layer with the flow of internal water, and the flow one-way flow mandarin fish capture flow channel.The utility model is simulated mandarin fish natural habitat by the bionic lure subassembly of being set, combine the mandarin fish capture flow channel formed by gentle slope and buffer channel, guide mandarin fish into temporary rearing storehouse by flow, reduce the stress reaction of direct fishing, avoid reduce the damage to mandarin fish when capturing mandarin fish, realize the non-destructive capture of mandarin fish, satisfy the fine breeding demand, and comprehensive economic benefit improvement is remarkable.

Description

Technical Field

[0001] This utility model relates to the field of fishing equipment technology, and in particular to a non-destructive capture device for mandarin fish based on a biomimetic structure. Background Technology

[0002] Mandarin fish, also known as mandarin perch, is a prized freshwater fish. Its firm, boneless flesh, delicious flavor, and high economic value have led to its widespread aquaculture in many regions. However, mandarin fish prefer to inhabit areas near underwater obstacles such as rocks and deadwood. In artificial aquaculture environments, they are typically caught using nets through a "hard pulling" method. For example, patent number 201922246589.4, entitled "A Catching Device for Mandarin Fish," describes a method of catching the entire pond using multiple chain net units. This method involves a large number of mandarin fish in the pond, all of which are caught in the net. The fish struggle under stress, leading to injuries and even death, severely impacting the quality of the fish. Therefore, a non-destructive capture device for mandarin fish is urgently needed. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a non-destructive capture device for mandarin fish based on a biomimetic structure, which can avoid damaging the mandarin fish when capturing it.

[0004] The purpose of this utility model is achieved through the following technical solution: a non-destructive capture device for mandarin fish based on a biomimetic structure, comprising a biomimetic attracting component, a buffer channel, and a temporary holding component. The biomimetic attracting component includes a channel arranged at the bottom of the water body and multiple biomimetic reefs arranged on the outer wall of the channel. Multiple flexible barbs are provided on the inner wall of the channel to prevent the mandarin fish from swimming upstream. The temporary holding component includes a holding chamber and a water pump. The holding chamber is provided with a water inlet and a water outlet. An isolation cover for isolating the mandarin fish is provided on the water outlet. The side wall of the holding chamber is provided with… A gate for controlling the opening and closing of the inlet; a buffer channel is arranged between the channel and the inlet of the temporary holding tank; one end of the buffer channel is connected to the channel, and the other end of the buffer channel is connected to the inlet; the inlet of the water pump is connected to the outlet; the water pump draws water out of the temporary holding tank and discharges it out of the water area through its outlet; when the water pump starts, the channel, the buffer channel, and the tank form a mandarin fish capture channel with internal water flow and unidirectional water flow at the bottom of the water area; the flow velocity of the water flow is 0.05-0.1 m / s, and the flow velocity is controlled by the water pump.

[0005] Preferably, the biomimetic reefs are densely arranged on the outer wall of the channel. The biomimetic attraction assembly also includes a netting surrounding the biomimetic reefs and multiple floating components for suspending the channel on the water's bottom. The floating components consist of floats on the water surface and traction ropes connecting the floats to the channel. The netting secures the biomimetic reefs to the outer wall of the channel to prevent them from falling off. The biomimetic reefs can be installed on the outer wall of the channel using methods such as adhesive bonding, binding, or threaded connections to achieve the effect of enveloping the entire channel. The biomimetic reefs have a porous structure with rock textures on their exposed surfaces. Their color closely resembles that of rocks in the aquaculture water. The biomimetic reefs are made of PE material and are hollow inside. An oxygen pump is placed in the temporary holding chamber to maintain the oxygen concentration within it.

[0006] The flexible barbs are arranged alternately on the inner wall of the channel at intervals of 3-8cm. The diameter of the channel is 15-30cm. The flexible barbs are made of silicone and are all arranged at an inward angle. Under the flow of water, the flexible barbs form a one-way channel to prevent the mandarin fish from swimming upstream.

[0007] The buffer channel is also provided with at least one diversion port communicating with the buffer channel. Each diversion port is equipped with a diversion cover, which is a flexible cover (such as a flexible cover made of PVC film) with one end open and the other end sealed. The open end of the diversion cover is tied to the diversion port. The buffer channel is a transparent channel (PVC transparent pipe), and the diversion cover is a transparent cover.

[0008] A flexible connecting pipe is also provided between the channel and the buffer channel. Since the biomimetic attracting component in this application is suspended at the bottom of the water body to simulate a normal underwater environment, it will exhibit a small angle of sway in reality. Since the buffer channel is directly installed on the holding chamber, the flexible connecting pipe can meet the requirement of this small-angle sway. Preferably, both the channel and the buffer channel are arranged at a downward slope to form a gentle slope, with the angle of the slope being 15° to 30°.

[0009] To achieve lossless capture, this application utilizes the "ambush predation" habit of mandarin fish, placing the entire device at the bottom of the water where they inhabit. The biomimetic trapping component features a biomimetic "bionic reef + concealed channel" structure, simulating a natural aquatic environment, suspended in the water and capable of tilting to form a unidirectional flow channel (mandarin fish can swim in downhill and escape when swimming against the flow due to barbs). The channels within the biomimetic trapping component are concealed due to the biomimetic reef arrangement, while the buffer channel is transparent. Once the mandarin fish enters the channel, it will actively swim towards the buffer channel. To prevent small fish from mixing into the buffer channel... Therefore, a diversion space (diversion hood) is reserved in the buffer channel. Once there are a large number of small fish in the diversion hood, it can be removed to release the small fish and reinstalled at the diversion outlet, which can greatly avoid damage to the small fish. It should be noted that the artificial breeding ponds for mandarin fish are generally 1.5-2.5m deep, while the installation position of the diversion hood is generally 1-1.5m underwater. Generally, the breeding pond is drained before installation. If it is necessary to operate underwater, a platform can be placed / built at the corresponding position of the diversion hood installation location. The platform should be 0.5-1m high. After the water pump is started, the mandarin fish enter the temporary holding tank with the flow channel. The mandarin fish can be temporarily held in the temporary holding tank for a period of time to prevent stress. When the number of mandarin fish in the temporary holding tank reaches a certain number, the water pump is turned off and the gate is lowered to make the temporary holding tank a relatively independent area, which is convenient for the next step of sorting by size.

[0010] The beneficial effects of this utility model are as follows: by setting up a biomimetic trapping component to simulate the natural habitat of mandarin fish, and combining the mandarin fish capture channel formed by the gentle slope and buffer channel, the mandarin fish are guided into the temporary holding tank by the water flow, which reduces the stress response of direct harvesting, reduces the damage to mandarin fish during capture, realizes the non-destructive capture of mandarin fish, meets the needs of refined aquaculture, and significantly improves the overall economic benefits. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram showing the connection between the channel, buffer channel, and temporary holding chamber of this utility model; Figure 3 This is a schematic diagram of the structure of the flow divider of this utility model; Figure 4 This utility model Figure 3 Cross-sectional view along the AA direction; Figure 5 This is a schematic diagram of the structure of the flexible connecting tube of this utility model; Figure 6 This is an installation diagram of the temporary holding chamber of this utility model when it adopts a movable chamber body; Figure 7 This is a schematic diagram showing the position of the workbench of this utility model.

[0012] In the diagram, 1-Bionic trapping component, 2-Buffer channel, 3-Temporary holding component, 101-Channel, 102-Bionic reef, 103-Flexible barbs, 104-Barrier net, 105-Floating object, 106-Traction rope, 107-Flexible connecting pipe, 201-Diverter, 202-Diverter cover, 203-Connecting sleeve, 204-Support rod, 205-Platform, 301-Temporary holding chamber, 302-Water pump, 303-Gate, 304-Inlet, 305-Outlet, 306-Isolation cover, 307-Aeration pump, 308-Fixing plate, 309-Mounting plate, 310-Workbench. Detailed Implementation

[0013] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0014] like Figures 1-4 As shown, a biomimetic structure-based non-destructive capture device for mandarin fish includes a biomimetic attracting component 1, a buffer channel 2, and a temporary holding component 3. The biomimetic attracting component 1 includes a channel 101 arranged at the bottom of the water and multiple biomimetic reefs 102 arranged on the outer wall of the channel 101. The inner wall of the channel 101 is provided with multiple flexible barbs 103 to prevent mandarin fish from swimming upstream. The temporary holding component 3 includes a temporary holding chamber 301 and a water pump 302. The temporary holding chamber 301 is provided with a water inlet 304 and a drain outlet 305. The drain outlet 305 is provided with an isolation cover 306 for isolating mandarin fish. The isolation cover 306 is provided with multiple slits to achieve isolation of mandarin fish while water pump 302 enters. The side wall of the temporary holding tank 301 is provided with a gate 303 for controlling the opening and closing of the water inlet 304. The buffer channel 2 is arranged between the channel 101 and the water inlet 304 of the temporary holding tank 301. One end of the buffer channel 2 is connected to the channel 101, and the other end of the buffer channel 2 is connected to the water inlet 304. The inlet of the water pump 302 is connected to the outlet 305. The water pump 302 pumps water out of the temporary holding tank 301 and discharges it out of the water area through its outlet. When the water pump 302 is started, the channel 101, the buffer channel 2 and the temporary holding tank 301 form a mandarin fish capture channel with internal water flow and unidirectional water flow at the bottom of the water area. The channel 101 and the buffer channel 2 are arranged with a downward slope of no more than 30° to form a gentle slope. The channel 101 can be a straight channel or a curved channel, as long as it meets the requirements of the gentle slope angle arrangement. The gate 303 can be either a manual gate or an electric gate, depending on the structure of the temporary holding chamber 301.

[0015] The biomimetic reefs 102 are densely arranged on the outer wall of the channel 101. The flexible barbs 103 are staggered on the inner wall of the channel 101 at intervals of 3-8 cm. The diameter of the channel 101 is 15-30 cm. The buffer channel 2 is also provided with at least one diversion port 201 communicating with it. Each diversion port 201 is equipped with a diversion cover 202, which is a flexible cover with one open end and one closed end. The open end of the diversion cover 202 is tied to the diversion port 201. Figures 3-4 As shown, it should be noted that a connecting sleeve 203 can also be provided at the opening end of the diversion hood 202, and the connecting sleeve 203 is threadedly connected to the diversion port 201. Since the flow velocity of the water flow described in this application is 0.05-0.1m / s, the suction force of the water flow on the diversion hood 202 is negligible, and the diversion hood 202 is unaffected. A platform 205 for operating the diversion hood 202 is also provided in the aquaculture pond, and the platform 205 is 0.5-1m high. As a further improvement of this application, in order to prevent the diversion hood 202 from being sucked into the buffer channel 2 under some special circumstances (such as when the flow velocity is suddenly too high), multiple support rods 204 for supporting the hood are provided on the inner side of the diversion hood 202. If the diversion hood 202 is tied, the support rods 204 can be fastened to the buffer channel 2 by means of buckles or cable ties; if the diversion hood 202 is fixed by the connecting sleeve 203, the support rods 204 can be fixed to the connecting sleeve 203. The diffuser 202 is a vulnerable part. In actual use, the diffuser 202 is mostly installed using a convenient fixing method (binding).

[0016] The buffer channel 2 is a transparent channel, and the diversion hood 202 is also a transparent cover. An oxygenation pump 307 is placed in the temporary holding chamber 301. The biomimetic attraction assembly 1 also includes a net 104 laid around the biomimetic reef 102 and multiple floating components for suspending the channel 101 on the bottom of the water. The net 104 is woven from nylon rope with a mesh size of 10mm × 10mm. The floating components consist of floating objects 105 that float on the water surface and a traction rope 106 connecting the floating objects 105 and the channel 101. The floating objects 105 are buoyancy-aiding airbags; the size and number of the floating objects 105 are determined according to the suspension status of the channel 101. Using a large buoyancy-aiding airbag or multiple small buoyancy-aiding airbags can achieve the purpose of suspending the channel 101. A flexible connecting pipe 107 is also provided between the channel 101 and the buffer channel 2. The length of the channel 101 is not less than 2m, and the length of the buffer channel 2 is 1-1.5m. Preferably, the inlet of the channel 101 is an open design (flared mouth). The two ends of the flexible connecting pipe 107 are connected to the channel 101 and the buffer channel 2 respectively. Since both the flexible connecting pipe 107 and the buffer channel 2 are flexible pipes, the connection between the pipes adopts a threaded connection method. Specifically, as shown... Figure 5 As shown, the flexible connecting pipe 107 has external threaded ends for connection at both ends, while the corresponding connection between channel 101 and buffer channel 2 has an internal threaded section. Other connection methods for pipe fittings (such as flanges, clamps, etc.) are also applicable to this application. It should be noted that the water pump 302 can be either a submersible pump placed in water or a pump placed on the shore, depending on the actual situation. In this application, the water pump 302 has a power of 10-15kW and a flow rate of 0.2-0.5m³ / h. 3 It should be noted that the temporary holding tank 301 can be either a movable tank structure or a fixed holding pool. For movable tank structures, the gate 303 is an electric gate, while for fixed holding pools, either an electric gate or a manual gate can be used.

[0017] In actual use, except for the temporary holding tank 301, which is a fixed holding pond and needs to be constructed in advance, the other components can be installed on-site. Typically, in artificial aquaculture environments, farmers can install the biomimetic attractant component 1, buffer channel 2, and temporary holding component 3 before releasing the mandarin fish fry. Once installed, the entire device can be reused repeatedly. When harvesting is needed, the water pump 302 is started. After the water pump 302 starts, the mandarin fish enter the temporary holding tank 301 through the flow channel. The fish can be temporarily held in the tank 301 for a period of time to prevent stress. When the number of mandarin fish in the tank 301 reaches a certain level, the water pump 302 is turned off and the gate 303 is lowered, placing the tank 301 in a relatively independent area for easier sorting by size in the next step. For the temporary holding tank 301, which is a fixed holding pool, if the water level in the holding tank 301 is high after the gate 303 is lowered, the farmer can use the water pump 302 to pump water to lower the water level, and then directly enter the pool to sort the fish by hand or with tools. The side walls of the fixed holding tank are equipped with ladders, which will not be detailed here. Figure 6As shown, the temporary holding tank 301 is a movable tank body, which is made of ABS material panels and is relatively lightweight. At this time, the temporary holding tank 301 should be fixed in the breeding pond in a detachable manner. The side wall or bottom of the breeding pond is fixed with a fixing plate 308 (directly anchored in during the pouring of the breeding pond). The two sides of the temporary holding tank 301 are equipped with mounting plates 309. When in use, the mounting plates 309 are fixed to the fixing plates 308 with bolt assemblies. The specific installation position and size are adjusted according to the site, ensuring that the temporary holding tank 301 is located at the bottom of the water. When the number of mandarin fish in the temporary holding tank 301 reaches a certain number, the water pump 302 is turned off and the gate 303 is lowered. The connection with the water pump 302 is removed, and then the bolt assembly is removed to move the temporary holding tank 301 to the upper layer of the water. It is then moved directly to the shore and sorted by hand / tool ​​in the temporary holding tank 301. Excess water is discharged through the drain outlet 305. Preferably, the fixing plate 308 is provided with at least one chute for moving the holding tank 301. The holding tank 301 is slidably installed in the chute and fixed after sliding to the bottom of the water. The corresponding mounting plate 309 is provided with a slider corresponding to the chute. In addition, for the convenience of harvesting and sorting, such as Figure 7 As shown, a work platform 310 is also set on the water surface of the aquaculture pond. The work platform 310 is fixed in the aquaculture pond by a bracket, and a position for a temporary holding chamber 301 is reserved to facilitate the operation of the gate 303 and the harvesting and sorting.

[0018] As can be seen, compared with the "hard pulling" fishing method of existing devices, this application uses a biomimetic attracting component 1 to simulate the natural habitat of mandarin fish. Combined with the mandarin fish capture channel formed by the gentle slope and flexible buffer channel 2, the mandarin fish are guided into the temporary holding tank 301 by water flow, which improves the targeted entry rate of the target fish species. The entire process of the mandarin fish entering the temporary holding tank 301 will not cause damage to the mandarin fish. The entire process will not use additional fishing tools to have direct contact with the mandarin fish, reducing the stress response of the mandarin fish when directly caught. In addition, the rate of skin damage to mandarin fish in the temporary holding tank 301 can be reduced from 15%-20% of existing devices to below 3%, and the survival rate can be increased to 98%. The quality of mandarin fish is significantly improved. A single person can complete the deployment / retrieval in about 5 minutes, and the operation efficiency is more than 3 times higher than that of traditional devices. It solves the problem of large stress damage to mandarin fish in existing devices, and is particularly suitable for large-scale pond aquaculture scenarios.

[0019] The above description is merely a preferred embodiment of this utility model. It should be understood that this utility model is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. A mandarin fish non-destructive capture device based on a biomimetic structure, characterized in that, The system includes a biomimetic attractant component (1), a buffer channel (2), and a temporary holding component (3). The biomimetic attractant component (1) includes a channel (101) arranged at the bottom of the water body and multiple biomimetic reefs (102) arranged on the outer wall of the channel (101). The inner wall of the channel (101) is provided with multiple flexible barbs (103) to prevent mandarin fish from swimming upstream. The temporary holding component (3) includes a temporary holding tank (301) and a water pump (302). The temporary holding tank (301) is provided with a water inlet (304) and a water outlet (305). The water outlet (305) is provided with a useful... The isolation cover (306) for isolating mandarin fish is provided with a gate (303) in the side wall of the temporary holding tank (301) for controlling the opening and closing of the water inlet (304). The buffer channel (2) is arranged between the channel (101) and the water inlet (304) of the temporary holding tank (301). One end of the buffer channel (2) is connected to the channel (101), and the other end of the buffer channel (2) is connected to the water inlet (304). The inlet of the water pump (302) is connected to the outlet (305). The water pump (302) draws water out of the temporary holding tank (301) and discharges it out of the water area through its outlet. When the water pump (302) is started, the channel (101), the buffer channel (2) and the temporary holding tank (301) form a mandarin fish capture channel with water flow inside and the water flow is unidirectional at the bottom of the water area.

2. The mandarin fish non-lethal capture device based on bionic structure according to claim 1, characterized in that, The biomimetic reefs (102) are closely arranged on the outer wall of the passage (101).

3. The mandarin fish non-lethal capture device based on bionic structure according to claim 1, characterized in that, The flexible barbs (103) are arranged alternately on the inner wall of the channel (101) at intervals of 3-8cm, and the diameter of the channel (101) is 15-30cm.

4. The mandarin fish non-lethal capture device based on bionic structure according to claim 1, characterized in that, The flow velocity of the water is 0.05-0.1 m / s.

5. The mandarin fish non-lethal capture device based on bionic structure according to claim 1, characterized in that, The buffer channel (2) is also provided with at least one diversion port (201) connected to the buffer channel (2). Each diversion port (201) is equipped with a diversion cover (202). The diversion cover (202) is a flexible cover with one end open and one end closed. The open end of the diversion cover (202) is tied to the diversion port (201).

6. The mandarin fish non-lethal capture device based on bionic structure according to claim 5, characterized in that, The buffer channel (2) is a transparent channel, and the diversion hood (202) is a transparent cover.

7. The mandarin fish non-lethal capture device based on bionic structure according to claim 1, characterized in that, An oxygenation pump (307) is placed in the temporary holding chamber (301).

8. A non-destructive capture device for mandarin fish based on a biomimetic structure according to any one of claims 1 or 2, characterized in that, The biomimetic attraction component (1) also includes a barrier net (104) laid around the biomimetic reef (102) and multiple floating components for suspending the channel (101) on the bottom of the water.

9. The mandarin fish non-lethal capture device based on bionic structure according to claim 8, characterized in that, The floating component consists of a float (105) that floats on the surface of the water and a tow rope (106) for connecting the float (105) and the channel (101).

10. The mandarin fish non-lethal capture device based on bionic structure of claim 1, wherein, A flexible connecting pipe (107) is also provided between the channel (101) and the buffer channel (2).

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