A kind of aquaculture boat net-chasing device and its working method

Abstract

The present invention provides a fish-driving net device for a breeding vessel, comprising a plurality of net-pulling units arranged around a breeding cabin and a fish-driving net; the net-pulling unit comprises eyelets, swivels, and a plurality of ground rings arranged from top to bottom along the inner wall of the breeding cabin; the net-pulling rope passes through the eyelets, swivels, and a plurality of ground rings in sequence to form a closed-loop structure connected end to end; the net-pulling ropes in the same net-pulling unit are located in the same plane; the fish-driving net is arranged horizontally, and its edge portion is fixedly connected to each net-pulling rope at the same height through each fish net tying point. The present invention can gradually and gently pull the fish-driving net downward through the net-pulling ropes of a plurality of net-pulling units, so that the adult fish are slowly driven to the bottom of the breeding cabin in a very comfortable environment, preventing the adult fish from being stimulated to produce a strong emergency reaction, and facilitating the subsequent centralized fish suction.

Description

Technical Field

[0001] The invention provides a net-chasing device for a breeding vessel and a working method thereof, belonging to the technical field of breeding vessels. Background Art

[0002] my country has made great achievements in offshore aquaculture, and deep-water wind and wave resistant cage aquaculture technology and facilities are becoming increasingly mature. In recent years, with the development of large cages and large aquaculture vessels, the successful separation of fish and water in the aquaculture cabins of large cages and large aquaculture vessels can ensure that the fish are not scratched - maintaining the perfect appearance of the adult fish, which is very good for sale, and keeping the adult fish in a relatively comfortable environment during the entire catching process, preventing the adult fish from being stimulated and having a strong emergency response, thereby making the meat of the adult fish taste worse. Therefore, the catching of adult fish in large cages and large aquaculture vessels is particularly important. How to provide a method that can slowly drive the fish to the bottom of the cabin to facilitate the subsequent fish suction pump to concentrate the fish is a technical problem that needs to be urgently solved in the marine aquaculture industry. Summary of the invention

[0003] The purpose of the present invention is to provide a net-driving device for aquaculture vessels, which can slowly drive adult fish to the bottom of aquaculture cabin in a very comfortable environment, prevent the adult fish from being stimulated to produce a strong emergency reaction, and facilitate subsequent centralized fish suction.

[0004] The present invention adopts the following technical solutions:

[0005] A fish-driving device for aquaculture work boat comprises a plurality of net-pulling units arranged around a farming cabin and a fish-driving net 1; the net-pulling unit comprises eyelets 5, swivels 4, and a plurality of ground orders 2 arranged from top to bottom along the inner wall of the farming cabin; the net-pulling ropes 3 sequentially pass through the eyelets 5, swivels 4, and a plurality of ground orders 2 to form a closed-loop structure connected end to end; the net-pulling ropes 3 in the same net-pulling unit are located in the same plane; the fish-driving net 1 is arranged horizontally, and its edge portion is fixedly connected to each net-pulling rope 3 at the same height through each fish net tying point.

[0006] Preferably, the side walls of the breeding cabin are divided from top to bottom into a hatch corner 10, a hatch folded wall 9, a bulkhead corner 12, a vertical bulkhead 6, an inclined bulkhead 7, and a breeding cabin bottom 8; from top to bottom, the hatch corner 10 is horizontal, the hatch folded wall 9 is inclined outward, the vertical bulkhead 6 is vertically downward, the inclined bulkhead 7 is inclined inward, and the breeding cabin bottom 8 is horizontal or inclined inward; a breeding cabin walkway 11 is provided above the hatch corner 10, the eye ring 5 is provided above the breeding cabin walkway 11, the swivel 4 is fixedly provided at the breeding cabin corner 10, and the ground order 2 is respectively provided at the bulkhead corner 12, the bottom of the vertical bulkhead 6, and the bottom of the inclined bulkhead 7.

[0007] Preferably, the net pulling units are arranged every approximately 2.5 m around the culture cabin.

[0008] Preferably, the ground order 2 can be folded and placed in the breeding cabin wall.

[0009] Preferably, a hose equipped with a magnet is woven on the edge of the fishing net, and after the fishing net 1 is tied to the pulling rope 3, the edge of the fishing net is adsorbed on the bulkhead, and the fishing net 1 is slowly pulled to the bottom of the cabin by the pulling rope 3.

[0010] Furthermore, the eye ring 5 and the swivel 4 are arranged in pairs, corresponding to the first net pulling rope 3a and the second net pulling rope 3b respectively. The tying point of the first net pulling rope 3a and the fish driving net 1 is the first fishing net tying point 14, and the tying point of the second net pulling rope 3b and the fish driving net 1 is the second fishing net tying point 13.

[0011] A working method of the above-mentioned net-pulling device for aquaculture work boat comprises the following steps: a diver dives into the aquaculture cabin to open all the ground orders 2; a net-pulling rope 3 is inserted, and two net-pulling ropes are arranged at each point of the left and right bulkheads, and each net-pulling rope forms a closed loop; a diver ties the fishing net to the same height of each net-pulling rope 3; each person operates 4 to 5 first net-pulling ropes 3a, and when the fishing net is driven to the horizontal plane of the end point set by the first fishing net tying point 14, the personnel operating the net-pulling ropes on the left and right bulkheads of the aquaculture cabin start to operate and pull the second net-pulling rope 3b to the same height, and this is repeated until the fishing net is driven to the set height of the bottom of the aquaculture cabin; and the net-pulling rope is marked with a mark indicating the depth of the fishing net.

[0012] The beneficial effects of the present invention are:

[0013] 1) The fish-driving net can be gradually and gently pulled downwards through the pulling ropes of multiple pulling net units, so that the adult fish can be slowly driven to the bottom of the breeding cabin in a very comfortable environment, preventing the adult fish from being stimulated and producing a strong emergency reaction, which is convenient for subsequent centralized fish suction.

[0014] 2) The net-pulling ropes are arranged in pairs, and the first net-pulling rope and the second net-pulling rope are operated alternately, which is convenient for arrangement, identification and overall control, and the design is ingenious. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a layout diagram of the net-chasing device of the aquaculture vessel of the present invention located in the cross section of the aquaculture cabin.

[0016] Figure 2 It is a top view of the eye ring arrangement.

[0017] Figure 3 It is a top view of the swivel arrangement.

[0018] Figure 4 This is a top view of the ground layout.

[0019] Figure 5 yes Figure 1Magnified view of the left middle area.

[0020] In the figure, 1. fish driving net, 2. ground order, 3. pulling net rope, 4. swivel, 5. eye ring, 6. vertical bulkhead, 7. inclined bulkhead, 8. breeding hold bottom, 9. hatch folded wall, 10. hatch corner, 11. breeding hold walkway, 12. bulkhead corner, 13. second fishing net tying point, 14. first fishing net tying point, 3a. first pulling net rope, 3b. second pulling net rope, 13a. end point of second fishing net tying point, 14a. end point of first fishing net tying point. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0022] See also Figure 1-Figure 5 A fish-driving device for aquaculture work boat comprises a plurality of net-pulling units arranged around a culture chamber and a fish-driving net 1; the net-pulling unit comprises eye rings 5, swivels 4, and a plurality of ground orders 2 arranged from top to bottom along the inner wall of the culture chamber; the net-pulling ropes 3 sequentially pass through the eye rings 5, swivels 4, and a plurality of ground orders 2 to form a closed-loop structure connected end to end; the net-pulling ropes 3 in the same net-pulling unit are located in the same plane; the fish-driving net 1 is arranged horizontally, and its edge portion is fixedly connected to each net-pulling rope 3 at the same height through each fish net tying point.

[0023] When the fish in the culture tank are grown to a size that can be caught, the diver will pass the net rope through the eye plate, guide ring and ground order in sequence, and tie the fishing net to the lower edge of the corner of the culture tank wall. Then pull the ф14 net rope to move the fishing net along the culture tank wall to the bottom of the culture tank, drive the fish in the culture tank to the bottom of the culture tank, and then use a vacuum fish suction pump to suck the fish away.

[0024] See Figure 5 The side walls of the breeding cabin are divided from top to bottom into a hatch corner 10, a hatch folded wall 9, a bulkhead corner 12, a vertical bulkhead 6, an inclined bulkhead 7, and a breeding cabin bottom 8; from top to bottom, the hatch corner 10 is horizontal, the hatch folded wall 9 is inclined outward, the vertical bulkhead 6 is vertically downward, the inclined bulkhead 7 is inclined inward, and the breeding cabin bottom 8 is horizontal or inclined inward; a breeding cabin walkway 11 is provided above the hatch corner 10, the eye ring 5 is provided above the breeding cabin walkway 11, the swivel 4 is fixedly provided at the breeding cabin corner 10, and the ground order 2 is respectively provided at the bulkhead corner 12, the bottom of the vertical bulkhead 6, and the bottom of the inclined bulkhead 7.

[0025] In this embodiment, see Figure 2-4 The net pulling unit is arranged every 2.5m around the culture cabin.

[0026] In this embodiment, the ground order 2 can be folded and placed in the breeding cabin wall.

[0027] In this embodiment, a hose equipped with a magnet is woven on the edge of the fishing net. After the fishing net 1 is tied to the net pulling rope 3, the edge of the fishing net is adsorbed on the cabin wall, and the fishing net 1 is slowly pulled to the bottom of the cabin by the net pulling rope 3.

[0028] In this embodiment, see Figure 1 and Figure 5 The eye ring 5 and the swivel 4 are arranged in pairs, corresponding to the first net pulling rope 3a and the second net pulling rope 3b respectively. The tying point of the first net pulling rope 3a and the fish driving net 1 is the first fishing net tying point 14, and the tying point of the second net pulling rope 3b and the fish driving net 1 is the second fishing net tying point 13.

[0029] The ground order 2, the swivel 4 and the eye ring 5 are welded to the bulkhead when the hull is constructed in sections.

[0030] The Diling 2 is a non-standard part specially designed for catching nets. When raising fish, in order to facilitate the cleaning robot to clean the bulkhead, the Diling pull ring is folded inside the bottom plate. When catching adult fish, the diver will open the Diling pull ring on the pre-loaded bulkhead. Because there is a mechanism inside the Diling bottom plate, after the Diling is opened, even if the Diling bracelet is subjected to force in any direction, the Diling pull ring will remain open.

[0031] The swivel 4 is welded at the hatch corner. The swivel 4 has two functions in the net-catching system: first, each swivel 4 passes a net-pulling rope to prevent the net-pulling ropes from being entangled with each other and to arrange the net-pulling ropes in order; second, it plays a guiding role, which can reduce friction resistance and prevent the net-pulling ropes from rubbing against the hatch corners and damaging the net-pulling ropes.

[0032] The eye ring 5 is welded about 1.7 meters above the walkway of the breeding cabin. The eye ring 5 also has two functions in the net-catching system: first, it plays a guiding role and changes the direction of the force when the net is caught. Second, it bears all forces, including all gravity of the fishing net, the net-pulling rope, and the tension applied to the net-pulling rope when the net is caught.

[0033] In order to reduce the drag of the net as much as possible, the horizontal projections of the eye ring 5, the swivel 4 and the ground order 2 are as close as possible to one line. Figure 2 , Figure 3 , Figure 4 As shown, the eye ring, swivel and ground ring are arranged at an interval of about 2.5m in the same plane (except for the four corners of the breeding cabin).

[0034] like Figure 1 , Figure 4 and Figure 5The left and right bulkheads of the breeding cabin shown in the figure have several folds. In order to better fit the fishing net with the bulkhead, two sets of eye rings and swivels for the net-pulling rope are arranged at each point (i.e., 2 eye rings and 4 swivels); the breeding cabin is small at the top and large at the bottom. In order to have a tie point for the fishing net and the net-pulling rope 1 every 2.5m (slightly less than 2.5m at the four corners), the eye rings and swivels are arranged densely at the four corners of the breeding cabin. The front and rear bulkheads of the breeding cabin are straight walls. The fishing net can be pulled to the bottom of the breeding cabin with a net-pulling rope, so a set of eye rings and swivels for the net-pulling rope are arranged at each point.

[0035] The working method of the above-mentioned aquaculture boat net-pulling device comprises the following steps: a diver dives into the aquaculture cabin to open all the ground orders 2; a net-pulling rope 3 passes through the eye ring 5, the swivel 4, and a plurality of ground orders 2 in sequence to form a closed loop structure connected end to end, and each point of the left and right bulkheads has two net-pulling ropes, and each net-pulling rope forms a closed loop; a diver ties the fishing net at the same height of each net-pulling rope 3; each person operates 4 to 5 first net-pulling ropes 3a, and when the fishing net is driven to the horizontal plane of the end point set by the first fishing net tying point 14, the personnel operating the net-pulling ropes on the left and right bulkheads of the aquaculture cabin start to operate and pull the second net-pulling rope 3b to the same height; the personnel operating the front and rear bulkheads of the aquaculture cabin to drive the net also operate 4 to 5 net-pulling ropes each, because each net-pulling point on the front and rear bulkheads of the aquaculture cabin has only one net-pulling rope, and all the front and rear bulkhead operators only need to keep driving the fishing net to the same depth as the left and right operators, and each net-pulling point does not need to change the net-pulling rope from the fishing net tying point to the end point of the fishing net tying point. This process is repeated until the fishing net is driven to the bottom of the aquaculture tank. Each driving rope is marked with the depth of the fishing net.

[0036] The above are preferred embodiments of the present invention. A person skilled in the art may make various changes or improvements on this basis. Without departing from the general concept of the present invention, these changes or improvements should fall within the scope of protection claimed by the present invention.

Claims

1. A net-chasing device for aquaculture vessels, characterized in that: It comprises a plurality of net pulling units arranged around the breeding cabin and a fish driving net (1); The net pulling unit comprises an eyelet (5), a swivel (4), and a plurality of ground rings (2) arranged from top to bottom along the inner wall of the breeding cabin; the net pulling rope (3) passes through the eyelet (5), the swivel (4), and the plurality of ground rings (2) in sequence to form a closed loop structure connected end to end; The net pulling ropes (3) in the same net pulling unit are located in the same plane; The fish-driving net (1) is arranged horizontally, and its edge is fixedly connected to each net-pulling rope (3) at the same height through each fish net tying point; A hose equipped with a magnet is woven on the edge of the fish driving net. After the fish driving net (1) is tied to the pulling net rope (3), the edge of the fishing net is adsorbed on the bulkhead, and the fish driving net (1) is slowly pulled to the bottom of the cabin by the pulling net rope (3).

2. The net-catching device for aquaculture boats according to claim 1, characterized in that: The side wall of the aquaculture cabin is divided from top to bottom into a hatch corner (10), a hatch folded wall (9), a bulkhead folded corner (12), a vertical bulkhead (6), an inclined bulkhead (7), and a bottom of the aquaculture cabin (8); From top to bottom, the hatch corner (10) is horizontal, the hatch fold wall (9) is inclined outward, the vertical bulkhead (6) is vertically downward, the inclined bulkhead (7) is inclined inward, and the aquaculture tank bottom (8) is horizontal or inclined inward; A breeding cabin walkway (11) is provided above the hatch corner (10), the eye ring (5) is provided above the breeding cabin walkway (11), the swivel (4) is fixedly provided at the breeding cabin corner, and the ground order (2) is respectively provided at the corner of the bulkhead (12), the bottom of the vertical bulkhead (6), and the bottom of the inclined bulkhead (7).

3. The net-catching device for aquaculture boats according to claim 1, characterized in that: The net pulling units are arranged every 2.5 m around the culture cabin.

4. The net-catching device for aquaculture boats according to claim 1, characterized in that: The ground order (2) can be folded and placed inside the breeding cabin wall.

5. The net-catching device for aquaculture vessels according to any one of claims 1 to 4, characterized in that: The eye ring (5) and the swivel (4) are arranged in pairs, corresponding to the first net pulling rope (3a) and the second net pulling rope (3b) respectively; the tying point between the first net pulling rope (3a) and the fish driving net (1) is the first fishing net tying point (14); and the tying point between the second net pulling rope (3b) and the fish driving net (1) is the second fishing net tying point (13).

6. A working method of the aquaculture vessel net-chasing device according to any one of claims 5, characterized in that: The following steps are involved: The diver enters the breeding chamber and opens all the ground commands (2); Thread the net rope (3), with two net ropes at each point on the left and right bulkheads, and form each net rope into a closed loop; The diver ties the fishing net to the same height of each pulling net rope (3); Each person operates 4 to 5 first pulling net ropes (3a). When the fish-driving net is driven to the horizontal plane of the end point set by the first fishing net tying point (14), the personnel operating the pulling net ropes on the left and right walls of the aquaculture cabin start to operate the second pulling net rope (3b) to the same height, and repeat this process until the fish-driving net is driven to the set height at the bottom of the aquaculture cabin; the pulling net rope is marked with a mark indicating the depth to which the fish-driving net has been driven.

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