Purse seine structure

Abstract

The utility model relates to a fencing net structure which comprises a floating body assembly, a sinking body assembly and a net body structure, the net body structure is connected between the floating body assembly and the sinking body assembly and comprises a plurality of main net pieces, a plurality of auxiliary net pieces and a plurality of connecting group strings, the main net pieces are arranged in an array mode in the length direction and the depth direction, and the auxiliary net pieces are arranged in an array mode in the length direction and the depth direction. The auxiliary meshes are located at the two ends of the main mesh in the length direction, the area of one main mesh is larger than that of one auxiliary mesh, the connecting set strings are connected with every two adjacent meshes, and in the mesh body structure, the main meshes with the large area form the main area of the mesh body structure, so that the number of the connecting set strings in the mesh body structure can be effectively reduced, and the mesh body structure is more compact. Therefore, the underwater resistance of the net body structure is reduced, the settling speed can be increased, the time of fishing operation is shortened, the net body structure is prevented from drifting due to the influence of water flow, and the time consumed by maintenance operation is shortened.

Description

Technical Field

[0001] The utility model relates to a surrounding net structure, especially a surrounding net for surrounding net fishing in fishery. Background Art

[0002] There is a modern fishing method in fishery called American large-scale surrounding net fishing, which uses a surrounding net for fishing. The surrounding net includes a floating body component, a sinking body component and a net body. The net body is connected between the floating body component and the sinking body component and is made by connecting a plurality of net sheets through a rope group in a string and weaving manner.

[0003] During the surrounding net fishing operation, the net head of the surrounding net is put into the sea by the large boat of the surrounding net boat. The sinking body component will drive the net body to sink downward, while the floating body component floats on the sea surface. While the sinking body component is sinking, the surrounding net boat circles the surrounding net in a counterclockwise direction to trap the fish school in the surrounding net, and then the surrounding net is retrieved by the winch of the surrounding net boat to complete the fishing.

[0004] Among them, the net body of the current surrounding net is woven by net sheets of the same size, and every two net sheets are connected by a rope group in a string and weaving manner. Therefore, the net body has more knots formed by ropes. When the net body sinks, the knots will increase the water resistance of the net body, resulting in a slower sinking speed, thus increasing the time consumed for one fishing operation. In addition, the increase in water resistance will also cause the net body to be more easily drifted by the ocean current, and the net sheets will be entangled with each other, which may lead to knotting or net breaking, and it takes time to maintain and increases the maintenance cost. Moreover, the sinking body component may not sink to the predetermined depth, resulting in a reduction in the catch. Therefore, there is still room for improvement in the current surrounding net. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is to improve the problems that the current surrounding net has a large number of net sheets, and more ropes are needed to connect and weave them in a string, so there are more knots, resulting in an increase in water resistance, slower sinking speed, knotting or net breaking of the net sheets, resulting in an increase in maintenance cost or inability to sink to the predetermined depth.

[0006] The technical solution proposed by the utility model is to provide a surrounding net structure. The surrounding net structure of the utility model defines a length direction and a depth direction that are not parallel to each other. The surrounding net structure includes:

[0007] A floating body component, which includes a plurality of floating balls. The plurality of floating balls are sequentially connected along the length direction, and the specific gravity of each floating ball is less than that of water;

[0008] A sinking body component, which is arranged at an interval from the floating body component along the depth direction. The sinking body component includes a plurality of sinkers. The plurality of sinkers are sequentially connected along the length direction, and the specific gravity of each sinker is greater than that of water; and

[0009] A net body structure is connected between the floating body component and the sinking body component. The net body structure includes a plurality of main net sheets, a plurality of secondary net sheets and a plurality of connecting strings. The plurality of main net sheets are adjacent along the length direction and the depth direction and are arranged in an array. Each two adjacent main net sheets are connected by one of the connecting strings. The plurality of secondary net sheets are located at both ends of the plurality of main net sheets along the length direction. Adjacent main net sheets and secondary net sheets are connected by one of the connecting strings. The area of one main net sheet is 2 to 6 times the area of one secondary net sheet, and the distribution area of the plurality of main net sheets in the net body structure is greater than the distribution area of the plurality of secondary net sheets.

[0010] Preferably, in the surrounding net structure as described above, the length of the main net sheet along the length direction is 2 times the length of the secondary net sheet along the length direction.

[0011] Preferably, in the surrounding net structure as described above, the width of the main net sheet along the depth direction is 2 times the width of the secondary net sheet along the depth direction.

[0012] Preferably, in the surrounding net structure as described above, the length of the main net sheet along the length direction is between 145 meters and 155 meters, including the end values.

[0013] Preferably, in the surrounding net structure as described above, the surrounding net structure includes a plurality of connecting net sheets. Some of the plurality of connecting net sheets are located between the plurality of main net sheets and the floating body component, and some of the plurality of connecting net sheets are located between the plurality of main net sheets and the sinking body component. Adjacent main net sheets and connecting net sheets are connected by one of the connecting strings.

[0014] Preferably, in the surrounding net structure as described above, the length of the connecting net sheet along the length direction is 2 times the length of the secondary net sheet along the length direction.

[0015] Preferably, in the surrounding net structure as described above, the main net sheet is made of core-spun nylon rope.

[0016] The beneficial effects that can be achieved by the present utility model are as follows: The net body structure of the surrounding net structure of the present utility model includes a plurality of main net pieces, a plurality of secondary net pieces, and a plurality of connecting strings. The area of the main net pieces is larger than that of the secondary net pieces. By using the main net pieces with a larger area to form the main area of the net body structure, the number of connecting strings in the net body structure can be effectively reduced. Therefore, when the surrounding net structure is lowered into the water, the water resistance of the net body structure is small. Thus, the sinking body assembly can drive the net body structure to sink relatively quickly, thereby reducing the time required for fishing operations. And because the water resistance is small, the net body structure is not easily drifted by ocean currents. Therefore, the net body structure is easier to deploy and not easily folded, so the situation of snagging the net or being unable to sink to the predetermined depth is not likely to occur. Moreover, when hauling in the net, the net body structure is also not likely to snag the net. And if the net body structure needs to be maintained or the main net pieces need to be partially replaced, the maintenance time for combining the main net pieces can also be effectively shortened. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 : A schematic plan view of a preferred embodiment of the surrounding net structure of the present utility model.

[0018] Figure 2 : A partial schematic plan view of a preferred embodiment of the surrounding net structure of the present utility model.

[0019] Figure 3 : The manufacturing design drawing of the surrounding net structure of the present utility model.

[0020] Figure 4 : For Figure 3 Schematic diagrams of various specifications marked in area A of the manufacturing design drawing.

[0021] Figure 5 : For Figure 3 Schematic diagrams of various specifications marked in area B of the manufacturing design drawing.

[0022] Figure 6 : For Figure 3 Schematic diagrams of various specifications marked in area C of the manufacturing design drawing.

[0023] Brief description of the reference numerals in the drawings:

[0024] 10: Floating body assembly

[0025] 20: Sinking body assembly

[0026] 30: Net body structure

[0027] 31: Main net piece

[0028] 32: Secondary net piece

[0029] 33: Connecting string

[0030] 34: Connecting mesh

[0031] 40: Mesh diagram block

[0032] 41: Sennit diagram block

[0033] D1: Length direction

[0034] D2: Depth direction

[0035] L1, L2: Length

[0036] W1, W2: Width

[0037] A, B, C: Areas Detailed implementation manners

[0038] The following further elaborates on the technical means adopted by the present utility model to achieve the predetermined utility model purpose in conjunction with the drawings and the preferred embodiments of the present utility model.

[0039] Please refer to Figure 1 and Figure 2 , which is a preferred embodiment of the enclosure net structure of the present utility model. It defines a length direction D1 and a depth direction D2 that are not parallel to each other. The enclosure net structure includes a floating body assembly 10, a sinking body assembly 20, and a net body structure 30. Preferably, the length direction D1 and the depth direction D2 are perpendicular to each other.

[0040] As Figure 1 shown, the floating body assembly 10 includes a plurality of floating balls. The plurality of floating balls are sequentially connected along the length direction D1, and the specific gravity of each of the floating balls is less than the specific gravity of water.

[0041] As Figure 1 shown, the sinking body assembly 20 and the floating body assembly 10 are arranged at intervals along the depth direction D2. The sinking body assembly 20 includes a plurality of sinkers. The plurality of sinkers are sequentially connected along the length direction D1, and the specific gravity of each of the sinkers is greater than the specific gravity of water.

[0042] As Figure 1 and Figure 2As shown, the net body structure 30 is connected between the floating body assembly 10 and the sinking body assembly 20. The net body structure 30 includes a plurality of main net sheets 31, a plurality of secondary net sheets 32, and a plurality of connecting strings 33. The plurality of main net sheets 31 are adjacent along the length direction D1 and the depth direction D2 and are arranged in an array. Each two adjacent main net sheets 31 are connected by a connecting string 33. The plurality of secondary net sheets 32 are located at both ends of the plurality of main net sheets 31 along the length direction D1. The adjacent main net sheets 31 and secondary net sheets 32 are connected by a connecting string 33. The area of one main net sheet 31 is 2 to 6 times the area of one secondary net sheet 32, and the distribution area of the plurality of main net sheets 31 in the net body structure 30 is larger than the distribution area of the plurality of secondary net sheets 32.

[0043] As Figure 1 shown, the net body structure 30 of the purse seine structure of the present utility model forms the main area of the net body structure 30 with the main net sheets 31 having a larger area, which can effectively reduce the number of connecting strings 33 in the net body structure 30. Therefore, when the purse seine structure is lowered into the water, due to the smaller water resistance of the net body structure 30, the sinking body assembly 20 can sink the net body structure 30 relatively quickly, thereby reducing the time required for fishing operations. And because the water resistance is smaller, the net body structure 30 is not easily drifted by ocean currents. Therefore, the net body structure 30 is easier to deploy and not easily folded, so it is not easy to occur the situation of snagging the net or being unable to sink to the predetermined depth. Furthermore, when hauling in the net, the net body structure 30 is also not easy to snag the net. And if the net body structure 30 needs to be maintained or the main net sheets 31 are partially replaced, the maintenance time for combining the main net sheets 31 can also be effectively shortened.

[0044] Preferably, as Figure 2 shown, the length L1 of the main net sheet 31 along the length direction D1 is 2 times the length L2 of the secondary net sheet 32 along the length direction D1, and the width W1 of the main net sheet 31 along the depth direction D2 is 2 times the width W2 of the secondary net sheet 32 along the depth direction D2. Therefore, compared with the traditional purse seine that completely forms the net body with net sheets having a smaller area, the area of the main net sheets 31 of the net body structure 30 of the purse seine structure of the present utility model is 4 times that of the secondary net sheets 32, thus effectively reducing the area in the net body structure 30 that needs to be joined by the connecting strings 33.

[0045] In addition, the length L1 of the main net sheet 31 along the length direction D1 is between 145 meters and 155 meters, including the end values. The length of the net sheet of the traditional purse seine along the length direction D1 is about 75 meters, and the length L1 of the main net sheet 31 of the present utility model is about twice the length of the net sheet of the traditional purse seine. The width W1 of the main net sheet 31 along the depth direction D2 can be determined according to the usage requirements. Preferably, the width W1 of the main net sheet 31 along the depth direction D2 is still twice the width of the net sheet of the traditional purse seine.

[0046] In addition, as Figure 1 and Figure 2 shown, the purse seine structure further includes a plurality of connecting net sheets 34. A part of the plurality of connecting net sheets 34 is located between the plurality of main net sheets 31 and the floating body assembly 10, and another part of the plurality of connecting net sheets 34 is located between the plurality of main net sheets 31 and the sinking body assembly 20. The adjacent main net sheets 31 and the connecting net sheets 34 are connected by a connecting string 33. Among them, the length of the connecting net sheet 34 along the length direction D1 is twice the length L2 of the auxiliary net sheet 32 along the length direction D1. Since the area of the connecting net sheet 34 is larger than that of the auxiliary net sheet 32, by connecting the plurality of main net sheets 31 with the floating body assembly 10 or the sinking body assembly 20 with the connecting net sheet 34, the area that needs to be joined by the connecting string 33 in the net body structure 30 can still be reduced.

[0047] Furthermore, the main net sheet 31 is made of core-spun nylon rope. Compared with the traditional nylon rope, the core-spun nylon rope has higher tensile strength and longer service life. In addition, the cross-section of the core-spun nylon rope is more circular. Therefore, when the purse seine structure passes through the net-hauling machine of the fishing boat, the friction area between the main net sheet 31 and the hull or between the main net sheets 31 can be reduced, so the wear of the main net sheet 31 can be reduced, and the circular cross-section can reduce the water resistance of the core-spun nylon rope, which is beneficial to accelerating the settlement during net setting.

[0048] Please refer to Figures 3 to 6 , which is the manufacturing design drawing of the purse seine structure of the present utility model, in which Figures 4 to 6 respectively represent Figure 3Marking methods of various specifications in area A, area B, and area C. The middle part of the manufacturing design drawing is the net diagram block 40. In the net diagram block 40, the arrangement of the multiple main net sheets 31 and the multiple secondary net sheets 32 of the net body structure 30 is marked along the length direction D1 and the depth direction D2, and the specifications of the ropes used to manufacture the main net sheets 31 and the secondary net sheets 32 are marked. The upper part and the lower part of the manufacturing design drawing are respectively the marling diagram blocks 41. In the marling diagram blocks 41, the specifications of the connection group strings 33 connected between the two main net sheets 31 or the main net sheets 31 and the secondary net sheets 32 at different positions along the length direction D1 are marked. Among them, in the marling diagram block 41 in the upper part, the specifications of the floats and floating sub-nets of the floating body assembly 10 at different positions along the length direction D1 are marked, and in the marling diagram block 41 in the lower part, the specifications of the sinkers and sinking sub-nets of the sinker assembly 20 at different positions along the length direction D1 are marked.

[0049] Among them, the staff can manufacture the surrounding net structure according to the manufacturing design drawing. Compared with the traditional surrounding net design drawing that separates the net diagram and the marling diagram, it causes inconvenience in reading and judging the corresponding relationship. For example Figure 3 As shown, the manufacturing design drawing of the surrounding net structure of the present utility model combines the net diagram and the marling diagram, making the manufacturing design drawing easier to read and improving convenience.

[0050] To sum up, the net body structure 30 of the surrounding net structure of the present utility model forms the main area of the net body structure 30 with the main net sheets 31 having a larger area, which can effectively reduce the number of connection group strings 33 in the net body structure 30, thereby reducing the water resistance of the net body structure 30. Therefore, it can accelerate the settlement speed to reduce the time of fishing operations, prevent the net body structure 30 from drifting due to the influence of water flow, and shorten the time consumed for maintenance operations.

[0051] The above are only the preferred embodiments of the present utility model, and do not impose any form of limitation on the present utility model. Although the present utility model has been disclosed above with the preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art, without departing from the technical solution of the present utility model, can make some changes or modifications to the above-disclosed technical content to form equivalent embodiments of equivalent changes. However, as long as it does not depart from the technical solution of the present utility model, any simple modification, equivalent change, and modification made to the above embodiments according to the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. A fence structure having a length direction and a depth direction which are not parallel to each other, characterized in that: It contains: A float assembly, the float assembly comprising a plurality of float balls, the plurality of float balls are sequentially connected along the length direction, and the specific gravity of each of the float balls is less than the specific gravity of water; a sinker assembly, wherein the sinker assembly and the floating assembly are arranged at intervals along the depth direction, the sinker assembly comprises a plurality of sinkers, the plurality of sinkers are sequentially connected along the length direction, and the specific gravity of each of the sinkers is greater than the specific gravity of water; and A mesh structure, wherein the mesh structure is connected between the floating body component and the submerged body component, and the mesh structure comprises a plurality of main meshes, a plurality of auxiliary meshes and a plurality of connection groups. The plurality of main meshes are adjacent to each other along the length direction and the depth direction and are arranged in an array, and every two adjacent main meshes are connected by a connection group. The plurality of auxiliary meshes are located at both ends of the plurality of main meshes along the length direction, and the adjacent main meshes and auxiliary meshes are connected by a connection group. The area of ​​a main mesh is 2 to 6 times the area of ​​a auxiliary mesh, and the distribution area of ​​the plurality of main meshes in the mesh structure is greater than the distribution area of ​​the plurality of auxiliary meshes.

2. The fence structure according to claim 1, characterized in that: The length of the main mesh along the length direction is twice the length of the auxiliary mesh along the length direction.

3. The fence structure according to claim 1, characterized in that: The width of the main mesh along the depth direction is twice the width of the auxiliary mesh along the depth direction.

4. The fence structure according to claim 2, characterized in that: The width of the main mesh along the depth direction is twice the width of the auxiliary mesh along the depth direction.

5. The fence structure according to any one of claims 1 to 4, characterized in that: The length of the main mesh along the length direction is between 145 meters and 155 meters, including end points.

6. The fence structure according to any one of claims 1 to 4, characterized in that: The enclosure structure includes a plurality of connecting meshes, a portion of which is located between the plurality of main meshes and the floating body assembly, another portion of which is located between the plurality of main meshes and the sinking body assembly, and adjacent main meshes and connecting meshes are connected by a connecting group string.

7. The fence structure according to claim 6, characterized in that: The length of the connecting mesh along the length direction is twice the length of the auxiliary mesh along the length direction.

8. The fence structure according to any one of claims 1 to 4, characterized in that: The main mesh is made of core-spun nylon rope.

9. The fence structure according to claim 6, characterized in that: The main mesh is made of core-spun nylon rope.

10. The fence structure according to claim 7, characterized in that: The main mesh is made of core-spun nylon rope.

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