CN106900618A - A kind of purse seine bilayer size mesh Safety Redundancy intensifying device - Google Patents

Abstract

The invention provides a double-layer size mesh security redundancy strengthening device for a purse seine, which comprises a shore connection pile, a purse seine pile, horizontal steel ropes, metal chains, a large-mesh net, a small-mesh net and nodes. The beneficial effects of the present invention are: the joints are connected together to avoid frictional damage caused by the mutual movement of the net clothes, the safety of the seine against wind and waves is improved, the local concentrated load bearing capacity is increased, and the current seine is avoided from using expensive copper nets and nets. Ultra-high molecular weight net clothing greatly reduces the construction cost of the seine; the use of isosceles triangular mesh can ensure the sealing performance of the net while saving materials; the surface of the shore pile, seine pile and horizontal steel rope is coated with corrosion-resistant coating layer, which isolates the seawater from it, protects it from corrosion, and prolongs the service life of the shore piles, seine piles and horizontal steel ropes; the invention has simple device, low cost and high practicability, and is suitable for large Medium and small scale farming.

Description

A safety redundancy strengthening device for a double-layer fence with large and small meshes

technical field

The invention belongs to the technical field of purse seine breeding in shallow sea, in particular to a double-layer purse seine safety redundancy strengthening device with large and small meshes.

Background technique

Seine aquaculture is to cultivate economic aquatic products in a certain area surrounded by meshes in fresh water and sea waters. It is an ecological breeding method that combines artificial and natural bait and is closer to the natural environment. It has the characteristics of wide breeding area, low investment, quick effect and no need for oxygenation.

At present, the seine breeding device is mainly composed of several vertical poles, apron and sandbags (sinks), etc. The vertical poles play a supporting role, the aprons are tied to the vertical poles, and the bottom is fixed to the bottom of the water with sandbags (sinks). This farming device is mainly suitable for areas such as lakes or tidal flats with small wind waves and tidal ranges, while the marine environment (wind waves and currents) is complex and changeable. The shell marine organisms rub against each other, causing damage to the seine net, causing the breeding objects to escape from the seine net, and causing major economic losses. In addition, the part of the purse seine that is laid on the bottom of the sea is prone to friction with the bottom of the sea, causing the netting to break, and it is also easy to break away from the bottom of the sea to make the cultured fish escape. Prior art, such as the Chinese invention patent with the authorized announcement number CN103828745B, discloses a seine net for aquaculture in deep waters in the open sea in the field of aquaculture technology, including a seine net that has become an effective water body for breeding, and is connected to the seine net. The floating rope frame at the upper end of the garment and the net pendant connected to the lower end of the seine net and immersed in the mud, wherein more than three main anchor ropes are connected to the above floating rope framework, and the other main anchor rope of each described One end is connected with a main anchor pile, and there are more than three auxiliary anchor piles evenly distributed inside and outside the above-mentioned seine net clothing, and the above-mentioned auxiliary anchor piles are all connected with the seine net clothing by auxiliary anchor ropes. It solves the technical problem of long-term effective use of seine nets in some coastal areas where typhoons are frequent, waves are high and currents are fast, and water flows are changeable all the year round. Long-term effective use in changing sea areas. During the long-term use process, the follow-up cost of maintenance is small and the economic benefits are good. However, the net is a single-layer net, and the local concentrated load bearing capacity needs to be improved.

Contents of the invention

The purpose of the present invention is to provide a double-layer size mesh security fence with strong wind and wave resistance, strong local concentrated load capacity, high sealing performance, good flexibility, long service life, stable device structure and long service life. Redundancy hardening device.

In order to solve the problems in the background technology, the present invention adopts the technical scheme as follows: a double-layer size mesh safety redundancy strengthening device for the fence, including horizontal steel ropes, a large mesh net connected with the horizontal steel ropes and a horizontal steel rope The connected small mesh, large mesh and small mesh are connected through nodes, the horizontal steel ropes are respectively connected to the shore piles and seine piles, and the bottom ends of the large mesh and small mesh are connected with metal chains. The device provided by the technical solution has strong wind and wave resistance, strong local concentrated load capacity, high sealing performance of the fence, good flexibility, stable device structure and long service life.

Preferably, the large-mesh net and the small-mesh net are connected by nodes, and the nodes are a reef knot or a word knot or a single knot or a bed knot or a double knot or a human knot or a figure-of-eight knot or a fisherman's knot. The large mesh and the small mesh are connected together through nodes to avoid frictional damage caused by the mutual movement of the nets, improve the safety of the seine against wind and waves, increase the local concentrated load carrying capacity, and avoid the current use of expensive copper mesh for the seine And ultra-high molecular weight net clothing, which greatly reduces the cost of seine construction; the net clothing has strong tensile and bending properties, strong impact resistance, is not easy to be broken, high fatigue resistance, long service life, strong wear resistance, and hard shell The friction of marine organisms will not easily cause damage to the seine net, causing the breeding objects to escape from the seine net.

Preferably, both the large mesh and the small mesh are isosceles triangles, the apex angle is 30°~60°, and the isosceles side length ratio of the small mesh and the large mesh is 1:1~3. Using the mesh of the above shape can ensure the sealing performance of the net while saving materials, and the breeding objects will not escape from the seine net.

Preferably, the quay pile and the seine pile are respectively provided with an open ring and rounded corners at both ends of the open ring. The shore piles and seine piles use ropes to pass through the open rings and connect with horizontal steel ropes respectively to increase the stability of the device; the design of rounded corners can prevent people from being scratched when installing the device, and can also Protect fish from being scratched during breeding.

As a preference, the surface of quay piles, seine piles, horizontal steel ropes and metal chains are all coated with anti-corrosion coating, and the composition and weight parts of anti-corrosion coating are: 40~50 parts of Ni, 5~10 parts of Cr, 0.002~ 0.08 part C, 0.02~0.09 part Al, 1.5~2.5 part B, 1.0~2.6 part Si, 0.01~0.05 part Mo, 0.0002~0.0005 part boron nitride, 0.0001~0.0003 part Ca and 0.0003~0.0004 part Sn, coating The thickness is 0.02~0.08cm. The shore piles, seine piles, horizontal steel ropes and metal chains are all made of alloys. They are soaked in seawater during use. There is sodium chloride in seawater, which is a conductor and will form a micro-battery with the alloy. The corrosion rate of the alloy is quick. Boron nitride, a combination of Ca and Sn, can effectively slow down this process. Corrosion-resistant coatings are applied to the surface of the shore piles, seine piles and horizontal steel ropes to isolate seawater from them and protect them from corrosion, prolonging the life of the shore piles, fence piles, horizontal steel ropes and metal chains service life.

Preferably, the seine piles are vertically distributed around the fence, with a separation distance of 2-4m, and the horizontal steel ropes are evenly distributed around the fence, with a separation distance of 0.2-0.6 of the length of the fence piles. The above connection method can not only make the top of the seine net higher than the sea level, so as to ensure that the breeding objects will not escape, but also make the structure of the device stable and enhance the wind and wave resistance of the device.

Preferably, the taper of the quay pile or the seine pile is 30°-62°, which can make it easier for these two kinds of piles to be driven into the ground, saving time and effort.

As a preference, metal chains are connected to the bottom ends of the large mesh and the small mesh. The above-mentioned design can make the purse seine fit the seabed, enhance the stability of the device, and enhance the wind and wave resistance of the device.

Compared with the prior art, the present invention has the advantages of connecting large and small meshes together through joints, avoiding frictional damage caused by the mutual movement of the nets, improving the safety of the seine against wind and waves, increasing the local concentrated load bearing capacity, and avoiding The current seine uses expensive copper mesh and ultra-high molecular weight netting, which greatly reduces the construction cost of the seine; the netting has strong tensile and bending properties, strong impact resistance, is not easy to be broken, has high fatigue resistance, and has a long service life , strong wear resistance, friction with hard-shelled marine organisms, will not easily cause damage to the seine, causing the breeding objects to escape from the seine; the use of isosceles triangle mesh can ensure the sealing performance of the net while saving materials; The open ring increases the stability of the device; the rounded corner design can prevent people from being scratched when installing the device, and can also protect fish from being scratched during the breeding process; The surface of piles and horizontal steel ropes is coated with corrosion-resistant coating, which isolates sea water from them, protects them from corrosion, and prolongs the service life of shore piles, seine piles and horizontal steel ropes; seine piles, horizontal steel ropes And the design of the metal chain at the bottom of the fence can not only make the top of the fence higher than the sea level, ensure that the breeding objects will not escape, but also make the structure of the device stable and enhance the wind and wave resistance of the device; the above device is simple to prepare, low in cost and practical High resistance, suitable for large, medium and small scale farming in shallow sea.

Description of drawings

Figure 1 is a full view of the fence;

Fig. 2 is a schematic diagram of net clothing structure;

Fig. 3 is the structural schematic diagram of connecting pile;

Fig. 4 is the schematic diagram of fence pile structure;

Fig. 5 is a schematic diagram of the structure of an open ring.

Explanation of reference signs: quay-coasting pile 1; quay-coasting pile opening ring 11; seine pile 2; seine pile opening ring 21; horizontal steel rope 3; metal chain 4; large mesh net 5; small mesh net 6; Sew node 7.

detailed description

The scheme of the present invention is further described below by accompanying drawing and embodiment:

Example 1:

A double-layer size mesh safety redundancy strengthening device for a purse seine, comprising a horizontal steel rope 3, a large mesh net 5 connected with the horizontal steel rope 3 and a small mesh mesh 6 connected with the horizontal steel rope, the large mesh mesh 5 and the small mesh mesh. Mesh net 6 is connected through node 7, and horizontal steel rope 3 is connected with shore pile 1 and seine pile 2 respectively, and the bottom end of large mesh 5 and small mesh 6 is connected with metal chain 4. The device provided by the technical solution has strong wind and wave resistance, strong local concentrated load capacity, high sealing performance of the fence, good flexibility, stable device structure and long service life.

Preferably, the large-mesh net 5 and the small-mesh net 6 are connected through a node 7, and the node 7 is a reef knot or a word knot or a single knot or a bed knot or a double knot or a human knot or a figure-of-eight knot or a fisherman's knot. The large mesh 5 and the small mesh 6 are connected together through the node 7, avoiding the frictional damage caused by the mutual movement of the nets, improving the safety of the seine against wind and waves, increasing the local concentrated load bearing capacity, and avoiding the costly use of the current seine. The advanced copper mesh and ultra-high molecular weight netting greatly reduce the construction cost of the seine; the netting has strong tensile and bending properties, strong impact resistance, is not easy to be torn off, has high fatigue resistance, long service life, and strong wear resistance. Friction with hard-shelled marine organisms will not easily cause damage to the seine net, causing the breeding objects to escape from the seine net.

As a preference, the meshes of the large mesh 5 and the small mesh 6 are isosceles triangles, the vertex angle is 30°~60°, and the isosceles side length ratio of the small mesh 6 and the large mesh 5 is 1:1 ~3. Using the mesh of the above shape can ensure the sealing performance of the net while saving materials, and the breeding objects will not escape from the seine net.

Preferably, the shore pile 1 and the seine pile 2 are provided with open rings 11 and 21 respectively, and both ends of the open rings are provided with rounded corners. The shore pile 1 and the seine pile 2 use ropes to be wound and connected with the horizontal steel rope 3 through the open rings 11 and 21 respectively to increase the stability of the device; the design of rounded corners can prevent people from being injured by their hands when installing the device. Scratching can also protect fish from being scratched during breeding.

As preferably, the surface of the shore pile 1, the seine pile 2, the horizontal steel rope 3 and the metal chain 4 are all coated with an anti-corrosion coating, and the composition of the anti-corrosion coating and its parts by weight are: 40~50 parts Ni, 5~10 parts Cr, 0.002~0.08 parts C, 0.02~0.09 parts Al, 1.5~2.5 parts B, 1.0~2.6 parts Si, 0.01~0.05 parts Mo, 0.0002~0.0005 parts boron nitride, 0.0001~0.0003 parts Ca and 0.0003~0.0004 parts Sn, the coating thickness is 0.02~0.08cm. The shore piles, seine piles, horizontal steel ropes and metal chains are all made of alloys. They are soaked in seawater during use. There is sodium chloride in seawater, which is an electrical conductor and will form a micro-battery with the alloy. The corrosion rate of the alloy is quick. Corrosion-resistant coatings are applied to the surface of the shore piles, seine piles and horizontal steel ropes to isolate seawater from them and protect them from corrosion, prolonging the life of the shore piles, fence piles, horizontal steel ropes and metal chains service life.

Preferably, the seine piles 2 are vertically distributed around the fence, with a separation distance of 2-4m, and the horizontal steel ropes 3 are evenly distributed around the fence, with a separation distance of 0.2-0.6 of the length of the fence pile 2. The above connection method can not only make the top of the seine net higher than the sea level, so as to ensure that the breeding objects will not escape, but also make the structure of the device stable and enhance the wind and wave resistance of the device.

Preferably, the taper of the quay pile 1 or the seine pile 2 is 30°-62°, and the above-mentioned taper can make it easier for these two kinds of piles to be driven into the ground, saving time and effort.

As a preference, metal chains 4 are connected to the bottom ends of the large mesh 5 and the small mesh 6. The above-mentioned design can make the purse seine fit the seabed, enhance the stability of the device, and enhance the wind and wave resistance of the device.

Example 2:

A kind of seine double-layer size mesh safety redundancy strengthening device, as shown in Figure 1, comprises horizontal steel rope 3, the big mesh net 5 that is connected with horizontal steel rope 3 and the small mesh net 6 that is connected with horizontal steel rope, The large mesh net 5 and the small mesh net 6 are connected through nodes 7, the horizontal steel rope 3 is respectively connected to the shore pile 1 and the seine pile 2, and the bottom ends of the large mesh mesh 5 and the small mesh mesh 6 are connected with a metal chain 4. The device provided by the technical solution has strong wind and wave resistance, strong local concentrated load capacity, high sealing performance of the fence, good flexibility, stable device structure and long service life.

Preferably, as shown in Figure 2, the large mesh net 5 and the small mesh net 6 are connected through a node 7, and the node 7 is a sail knot or a word knot or a single knot or a single knot or a double knot or a human knot or a figure-of-eight knot or fisherman's knot. The large mesh 5 and the small mesh 6 are connected together through the node 7, avoiding the frictional damage caused by the mutual movement of the nets, improving the safety of the seine against wind and waves, increasing the local concentrated load bearing capacity, and avoiding the costly use of the current seine. The advanced copper mesh and ultra-high molecular weight netting greatly reduce the construction cost of the seine; the netting has strong tensile and bending properties, strong impact resistance, is not easy to be torn off, has high fatigue resistance, long service life, and strong wear resistance. Friction with hard-shelled marine organisms will not easily cause damage to the seine net, causing the breeding objects to escape from the seine net.

Preferably, the meshes of the large mesh 5 and the small mesh 6 are both isosceles triangles, the most preferred angle of the vertex is 45°, and the mesh isosceles length ratio of the small mesh 6 and the large mesh 5 is 1:1.8. Using the mesh of the above shape can ensure the sealing performance of the net while saving materials, and the breeding objects will not escape from the seine net.

Preferably, as shown in FIG. 3 and FIG. 4 , the shore pile 1 and the seine pile 2 are respectively provided with opening rings 11 and 21 , and as shown in FIG. 5 , both ends of the opening ring are provided with rounded corners. The shore pile 1 and the seine pile 2 use ropes to be wound and connected with the horizontal steel rope 3 through the open rings 11 and 21 respectively to increase the stability of the device; the design of rounded corners can prevent people from being injured by their hands when installing the device. Scratching can also protect fish from being scratched during breeding.

As preferably, the surface of the shore pile 1, the seine pile 2, the horizontal steel rope 3 and the metal chain 4 are all coated with an anti-corrosion coating, and the composition of the anti-corrosion coating and its most preferred parts by weight are: 45 parts of Ni, 8 parts of Cr, 0.003 parts of C, 0.06 parts of Al, 19 parts of B, 2.1 parts of Si, 0.04 parts of Mo, 0.0003 parts of boron nitride, 0.0002 parts of Ca and 0.0004 parts of Sn, the coating thickness is 0.06 cm. The shore piles, seine piles, horizontal steel ropes and metal chains are all made of alloys. They are soaked in seawater during use. There is sodium chloride in seawater, which is a conductor and will form a micro-battery with the alloy. The corrosion rate of the alloy is quick. Corrosion-resistant coatings are applied to the surface of the shore piles, seine piles and horizontal steel ropes to isolate seawater from them and protect them from corrosion, prolonging the life of the shore piles, fence piles, horizontal steel ropes and metal chains service life.

As preferably, the fence pile 2 is vertically distributed around the fence, and the separation distance is 3m. The length of the fence pile is 0.6m higher than the sea level after being driven into the seabed. 0.3 of the length of net pile 2. The above connection method can not only make the top of the seine net higher than the sea level, so as to ensure that the breeding objects will not escape, but also make the structure of the device stable and enhance the wind and wave resistance of the device.

Preferably, the taper of the quay pile 1 or the seine pile 2 is 40°, and the above-mentioned taper can make these two kinds of piles easier to drive into the ground, saving time and effort.

As a preference, metal chains 4 are connected to the bottom ends of the large mesh 5 and the small mesh 6. The above-mentioned design can make the purse seine fit the seabed, enhance the stability of the device, and enhance the wind and wave resistance of the device.

Conventional operations in the connection operation steps of the present invention are well known to those skilled in the art and will not be repeated here.

The meshes of large mesh 5 and small mesh 6 are all isosceles triangles, and the angle of apex is not limited to 30°~60°, but also includes 31° or 32° or 33°, ..., or 58° or 59° or 60° °.

The mesh isosceles length ratio of small mesh 6 and large mesh 5 is not limited to 1:1~3, but also includes 1:1.02 or 1:1.04 or 1:1.06, ..., or 1:2.996 or 1:2.998 or 1:3.

The embodiments described above have described the technical solutions of the present invention in detail. It should be understood that the above descriptions are only specific embodiments of the present invention, and are not intended to limit the present invention. All done within the principle scope of the present invention Any modification, supplement or substitution in a similar manner shall be included within the protection scope of the present invention.

Claims (9)

1. a kind of purse seine bilayer size mesh Safety Redundancy intensifying device, including horizontal steel cable（3）, with horizontal steel cable（3）Connection Big-holed net（5）And the small-eyed net being connected with horizontal steel cable（6）, it is characterised in that：Described big-holed net（5）And small-eyed net（6） By node（7）It is connected, horizontal steel cable（3）Respectively with Lian Anzhuan（1）With purse seine stake（2）Connection.

2. a kind of purse seine bilayer size mesh Safety Redundancy intensifying device according to claim 1, it is characterised in that：It is described Large mesh（5）With small mesh（6）Mesh be isosceles triangle, corner angle is 30 ° ~ 60 °.

3. a kind of purse seine bilayer size mesh Safety Redundancy intensifying device according to claim 1, it is characterised in that：It is described Small mesh（6）And large mesh（5）Mesh isosceles side ratio be 1:1~3.

4. a kind of purse seine bilayer size mesh Safety Redundancy intensifying device according to claim 1, it is characterised in that：It is described Node（7）It is reef knot or word knot or bowline or sheet knot or Portuguese bowline or people's knot or Figure of eight or fisherman's bend.

5. a kind of purse seine bilayer size mesh Safety Redundancy intensifying device according to claim 1, it is characterised in that：It is described Lian Anzhuan（1）With purse seine stake（2）It is respectively equipped with opening annulus（11）With（21）Opening annulus two ends are equipped with rounding.

6. a kind of purse seine bilayer size mesh Safety Redundancy intensifying device according to claim 1, it is characterised in that：It is described Large mesh（5）With small mesh（6）Bottom is connected with metallic bond（4）.

7. a kind of purse seine bilayer size mesh Safety Redundancy intensifying device according to claim 1, it is characterised in that：It is described Lian Anzhuan（1）, purse seine stake（2）, horizontal steel cable（3）And metallic bond（4）Surface corrosion-resistant erosion resisting coating composition and its weight portion are：40 ~ 50 parts of Ni, 5 ~ 10 parts of Cr, 0.002 ~ 0.08 part of C, 0.02 ~ 0.09 part of Al, 1.5 ~ 2.5 parts of B, 1.0 ~ 2.6 parts of Si, 0.01 ~ 0.05 Part Mo, 0.0002 ~ 0.0005 part of boron nitride, 0.0001 ~ 0.0003 part of Ca and 0.0003 ~ 0.0004 part of Sn.

8. a kind of purse seine bilayer size mesh Safety Redundancy intensifying device according to claim 1, it is characterised in that：It is described Horizontal steel cable（3）It is uniformly distributed, separation distance is purse seine stake（2）The 0.2 ~ 0.6 of length.

9. a kind of purse seine bilayer size mesh Safety Redundancy intensifying device according to claim 1, it is characterised in that：It is described Lian Anzhuan（1）Or purse seine stake（2）Taper be 30 ° ~ 62 °.