Anti-jellyfish and anti-shark net for bathing beach

A technology for bathing beaches and nets, applied in the direction of anti-shark screens, etc., can solve the problems that are not very ideal, cannot achieve jellyfish and shark blocking, etc., and achieve the effects of convenient laying, remarkable protection effect, and good resistance to strong acid and alkali.

Inactive Publication Date: 2015-04-15
河北省海洋与水产科学研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patents GB2288962A and GB2303283 (same family CN1057500C) disclose seaside shark prevention nets, but they cannot simultaneously block jellyfish and sharks, even if the effect of blocking sharks alone is not very satisfactory.

Method used

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  • Anti-jellyfish and anti-shark net for bathing beach
  • Anti-jellyfish and anti-shark net for bathing beach
  • Anti-jellyfish and anti-shark net for bathing beach

Examples

Experimental program
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Embodiment 1

[0026] like figure 1 The anti-sting and anti-shark net gear 1 of a bathing beach in my country as shown includes a mesh 2 woven from mesh wires with a thickness of 42tex7×3, a cable and ancillary components. The cable and ancillary components are shown in Table 1 below. The single-chip network parameters are shown in Table 2. The mesh of the mesh 2 is 2a=50.0mm or 2a=100.0mm, and the shrinkage coefficient of the mesh is E=0.707.

[0027] The net line, the upper class and the floater class are made of monofilament twisted strands or ropes of polyethylene fiber, and the lower class and the sinker class are made of polyester fiber rope.

[0028] The accessory components include the foam plastic ball float 3 connected with the buoy class (the weight of the float in the air is 58.2g, the buoyancy force is 671.0g, and the buoyancy rate is 10.6), and the ceramic ellipsoid sinker connected with the sinker class (The weight of a single sinker in the air is about 200g, and the sediment...

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Abstract

The invention relates to an anti-jellyfish and anti-shark net for preventing jellyfishes sharks from floating and swimming into a bathing beach. The net comprises a mesh, wire ropes and affiliated components, wherein the mesh is laid at the periphery of the bathing beach and used for blocking both the jellyfishes and the sharks; the wire ropes and the affiliated components are used for supporting and fixing the mesh; the mesh is formed by weaving netting twines with the roughness of about 42tex7*3; the mesh size 2a is equal to 50.0 mm or 100.0 mm; and the expansion joint coefficient E of the mesh size is equal to 0.707. The invention has the benefit that the net aims to block but not capture the jellyfishes and the sharks while ensuring that swimmers cannot be tangled. Therefore, careful comparison and consideration are taken in the selection of the material and the roughness of the netting twines, the mesh size and expansion joints, the material and the roughness of the wire ropes, and the materials and the sizes of floaters and sinkers.

Description

technical field [0001] The invention belongs to a protection device for a bathing beach, in particular to an anti-stinging and shark-proof net gear for preventing jellyfish from drifting in and sharks from swimming into the bathing beach. Background technique [0002] Beaches are places built on coastal beaches for swimming, sunbathing and other sea sports. When swimming, the threat of jellyfish and sharks to swimmers has become one of the important safety issues in beach bathing places. The current method of preventing stings and sharks in bathing beaches mainly uses fishing nets to enclose the bathing places. The function of traditional jellyfish fishing nets is to catch jellyfish, not to block them. It is not suitable for the use purpose of the protective net in the bathing place, and the phenomenon of hanging and winding often occurs. Patents GB2288962A, GB2303283 (CN1057500C of the same family) disclose seashore shark prevention nets, but can not realize that jellyfis...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B63C9/05
Inventor 郑向荣庄申吴新民慕建东张兵郗艳娟闫丽
Owner 河北省海洋与水产科学研究院
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