A method for fixing mesh of aquaculture cage

Abstract

The present invention discloses a method for fixing a mesh of an aquaculture cage. The method comprises adding binding tubes and supporting tubes to the main structure of the cage to form a mesh tooling, and then fixing the mesh on the mesh tooling; the mesh comprises a mesh, a side wire and a rope wire, the supporting tubes are arranged in pairs between the binding tubes and the main structure of the cage, and a preset spacing is maintained between the two supporting tubes arranged in pairs, one end of each rope wire is installed on the side wire by plugging or knotting, two binding ropes are used to wrap around the side wire and the binding tube with a preset number of turns on the upper and lower sides of the rope wire end installed on the side wire, and the two binding ropes are located between the two supporting tubes arranged in pairs, thereby fixing the position of the rope wire end, and finally fixing the mesh and the rope wire by binding wire; the present invention solves the problem that the existing aquaculture cage cannot withstand the load component along the frame direction, so that the rope wire position is fixed, the force transmission path is clear, and the installation method is simple.

Description

Technical Field

[0001] The present invention relates to the technical field of marine aquaculture, in particular to a method for fixing a mesh of an aquaculture cage. Background Art

[0002] The mesh is an important component of aquaculture equipment such as cages. The connection and fixing method between the mesh and the cage frame plays a vital role in the reliability of the cage. The actual connection and fixing methods are as follows:

[0003] Direct lashing involves tying the mesh directly to the frame structure with lashing wire. If the frame is too large for lashing, additional tools such as round pipes are used. This method offers simple installation and better reliability, but the mesh can only withstand loads perpendicular to the frame structure. If the load has a component along the frame structure, it will slip due to lack of restraint, thus presenting certain limitations. Summary of the Invention

[0004] The purpose of the present invention is to solve the deficiencies in the prior art and provide a method for fixing the mesh of aquaculture cages, which solves the problem that the existing aquaculture cages cannot withstand the load component along the frame direction, fixes the position of the rope, and has a clear force transmission path and a simple installation method.

[0005] The present invention is achieved through the following technical solutions: a method for fixing the mesh of a breeding cage, which is to form a mesh tooling by adding a tying tube and a supporting tube to the main structure of the cage, and then fix the mesh on the mesh tooling; wherein, the mesh includes a net, a side line and a rope line, the supporting tubes are arranged in pairs between the tying tube and the main structure of the cage, and a preset distance is maintained between the two supporting tubes arranged in pairs, the side line is arranged on the periphery of the net, one side of the side line is arranged in parallel with the tying tube, and the side line and the tying tube are tied together by tying The ropes are wound and fixed, and there are multiple ropes. One end of each rope is installed on the side rope by plugging or knotting, and is located at a position corresponding to the distance between the two supporting tubes arranged in pairs, and a preset inclination angle is maintained between each rope and the side rope. Two binding ropes are used on the upper and lower sides of the end of the rope installed on the side rope to wrap around the side rope and the binding tube with a preset number of turns, and the two binding ropes are located between the two supporting tubes arranged in pairs, thereby fixing the position of the end of the rope, and finally the net and the rope are fixed by winding the binding line.

[0006] Furthermore, both ends of the support pipe are connected to the main structure of the cage and the binding pipe by welding.

[0007] Furthermore, the diameter of the binding rope is larger than the diameter of the binding wire.

[0008] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0009] 1. Accurately fix the rope position. By properly setting the support tube spacing and selecting the diameter and number of lashing wires, the space between a pair of support tubes can be fully filled with lashing wires, and the rope position can be accurately fixed by the lashing wires.

[0010] 2. It is applicable to inclined frame structures and has a wide range of applications. For inclined frame structures, the ropes are not perpendicular to the frame structure, which will generate a component force along the direction of the frame structure. The pair of support tubes in the present invention can effectively resist this component force.

[0011] 3. Good anti-wear effect and high reliability. The fixing method described in the present invention does not directly connect the rope and the net tooling, but is connected through the side rope. In severe sea conditions, the rope is subjected to large forces, and the side rope and lashing lines will deform under the tension of the rope, resulting in a gap between the rope and the net tooling. The rope rotates along the side rope under the load of waves and currents. The above gap prevents friction between the rope and the tooling tube, thus effectively avoiding damage caused by rope friction and improving the reliability of the mesh system.

[0012] 4. The mesh is easy to install and replace without the need for large-scale machinery and equipment. The mesh fixing method of the present invention only requires personnel to tie the ties during installation, without the need for large-scale machinery and equipment such as cranes. When replacing the mesh, the ties can be directly cut and the new mesh can be replaced and tied again, making the whole process very convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 Schematic diagram of the mesh fixing structure.

[0014] Figure 2 This is a structural diagram of the rope end installation method.

[0015] Figure 3 It is a structural diagram of the lashing rope tying method. DETAILED DESCRIPTION

[0016] The present invention will be further described below with reference to specific embodiments.

[0017] See also Figure 1 As shown, the method for fixing the mesh of the aquaculture cage provided in this embodiment is to add a tying pipe 12 and a support pipe 13 to the main structure 11 of the cage to form a netting tool, and then fix the mesh on the netting tool;

[0018] In this embodiment, the main structure 11 of the net box is a wind turbine conduit rack foundation with an inclined structure. There is a 9-degree inclination between the conduit of the wind turbine conduit rack foundation and the plumb line. The support tubes 13 are welded in pairs between the binding tubes 12 and the main structure 11 of the net box, and a spacing of 110 mm is maintained between the two support tubes 13 arranged in pairs. The binding tubes 12 and the support tubes 13 are recommended to be round tubes or round rods, and can also be other cross-sectional shapes. In this embodiment, the binding tubes 12 are steel tubes with a diameter of 114 mm. The main function of the binding tubes is to provide a connection point for the mesh, bear the load transmitted from the mesh, and transmit the load to the main structure 11 of the net box through the support tubes 13. The support tubes 13 are steel tubes with a diameter of 114 mm and a height of 50 mm. The main function of the support tubes 13 is to transmit the load of the binding tubes 12 to the main structure 11 of the net box. At the same time, the support tubes 13 can fix the binding ropes 32, and then fix the position of the rope line 22 to ensure that the rope line 22 does not shift along the axis of the binding tube 12.

[0019] The mesh includes a net 21, a side line 23 and a rope line 22; wherein the net, rope line, lashing rope, lashing line and side line can be made of a variety of materials, such as nylon, polyethylene, PET, etc. In the present embodiment, the net 21 is a square mesh with a side length of 30 mm and is made of ultra-high molecular weight polyethylene. The net 21 is the main component of the mesh and is also a functional component of the cage culture. Its function is to prevent fish from escaping; the rope line 22 is an ultra-high molecular weight polyethylene rope with a diameter of 24 mm. The rope line 22 is the main load-bearing component in the mesh, and its main function is to bear the load on the mesh and transfer the load to the side line 23; the side line 23 is an ultra-high molecular weight polyethylene rope with a diameter of 30 mm, and its main function is to bear the load transferred by the rope line 22 and transfer the load to the lashing tube 12 through the lashing rope 31. At the same time, the side line 23 also plays a role in maintaining the shape of the mesh; the lashing lines 31 and 32 are both ultra-high molecular weight polyethylene ropes with a diameter of 10 mm; the side line 23 is arranged The tying tube 12 is provided with a tying rope 31 for wrapping around the net 21. The tying rope 31 is used to wrap around the net 21 at a position away from the tying rope 22, with a spacing of 150 mm and tying for 2 turns. There are multiple tying ropes 22, and one end of each tying rope 22 is wrapped around the net 23 by plugging or knotting, and is located at a position corresponding to the spacing between the two supporting tubes 13 arranged in pairs. An inclination angle of 9 degrees is maintained between each tying rope 22 and the net 21. Two tying ropes 32 are used to wrap around the net 23 and the tying tube 4 turns on the upper and lower sides of the end of the tying rope 22 installed on the net 23, and the two tying ropes 32 are located between the two supporting tubes 13 arranged in pairs, thereby fixing the position of the end of the tying rope 22. Finally, the net 21 and the tying rope 22 are wrapped around and fixed by the tying rope 24. The tying rope 24 is an ultra-high molecular weight polyethylene rope with a diameter of 3 mm and a spacing of 150 mm.

[0020] Because the rope 22 and the side 23 are not perpendicular and there is a 9-degree inclination, the force on the rope 22 is decomposed. The force component perpendicular to the side 23 is borne by the side 23, and the force component along the side 23 is borne by the binding rope 32, and then by the support tube 13. The position of the rope 22 is fixed by the support tube 13 and the binding rope 32. The displacement of the rope 22 under stress depends on the deformation of the binding rope 32 after the stress is applied. Calculated using the parameters described in this embodiment, the deformation is less than 80 mm, which meets the actual engineering needs. Therefore, the mesh fixing method described in the patent of this invention can well fix the position of the rope 22 on the inclined frame structure.

[0021] See also Figure 2 As shown, the rope 22 goes around the edge 23 and contacts the lashing pipe 12, and is tied by the lashing rope 32. Figure 3 When the rope 22 is subjected to force, the side wires 23 and the lashing ropes 32 bear the force components of the rope 22 in different directions and deform accordingly. At this time, a certain gap will be generated between the rope 22 and the lashing tube 12. This gap allows the rope 22 to rotate along the side wires 23 without rubbing against the lashing tube 12, thereby greatly reducing the risk of the rope 22 being damaged by friction.

[0022] The mesh fixing method shown in this embodiment is that the net tooling and mesh are shipped to the final assembly plant for final assembly after being prefabricated in the factory. The final assembly process only requires the on-site tying of the binding ropes 31 / 32. Because the mesh is made of ultra-high molecular weight polyethylene with a light weight and is a flexible system, the installation process is highly flexible and can be completed entirely by workers manually without the need for mechanical equipment such as cranes and winches. When the mesh needs to be replaced after being used in seawater for a certain period of time, it is only necessary to use a knife to cut the binding ropes 31 / 32, remove the old mesh, and use new binding ropes 31 / 32 to re-tie the new mesh to the binding tube 12. The density of ultra-high molecular weight polyethylene material is ~0.96t / m3, slightly less than that of seawater. The buoyancy of the mesh in seawater is about 27g / m2, which is very convenient for divers to operate underwater. Therefore, the mesh fixing method described in the patent of the present invention is very convenient in both the installation and replacement stages of the mesh.

[0023] The embodiments described above are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any changes made based on the shape and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A method for fixing a mesh of a breeding cage, characterized by: The method is to add binding tubes and support tubes to the main structure of the net box to form a net workpiece, and then fix the net on the net workpiece; wherein, the net includes a net, an edge line and a rope line, the support tubes are arranged in pairs between the binding tube and the main structure of the net box, and a preset distance is maintained between the two support tubes arranged in pairs, the edge line is arranged on the periphery of the net, one side of the edge line is arranged in parallel with the binding tube, the edge line and the binding tube are fixed by binding ropes, a plurality of ropes are provided, one end of each rope line is installed on the edge line by plugging or knotting, and is located at a position corresponding to the distance between the two support tubes arranged in pairs, and a preset inclination angle is maintained between each rope line and the side line, two binding ropes are used on the upper and lower sides of the rope line end installed on the side line to wrap around the edge line and the binding tube with a preset number of turns, and the two binding ropes are located between the two support tubes arranged in pairs, thereby fixing the position of the rope line end, and finally the net and the rope line are fixed by binding wires.

2. The method for fixing the mesh of aquaculture cage according to claim 1, characterized in that: The two ends of the support pipe are connected to the main structure of the cage and the binding pipe respectively by welding.

3. The method for fixing the mesh of aquaculture cage according to claim 1, characterized in that: The diameter of the lashing rope is greater than the diameter of the lashing wire.

Images