Abstract:
The present invention comprises a display unit having a holding unit fixed at a flag installation rod and an LED flickering element. The present invention generates electricity by using a solar battery to provide the LED, which requires for low energy, with the electricity and forms a reflection panel in a position facing the LED to effectively spread the light for recognizing fishing equipment and locations of fish farms day and night. The display unit is produced by a watertight process to prevent each component installed inside the display unit from being exposed to the outside. The holding unit and the display unit are connected by a swivel capable of rotating 360 degrees, thus, the display unit having the LED flickering element can be maintained horizontally on the water surface even under waves and winds.
Abstract:
종래 발광 전원으로 소형 전지를 사용하는 경우 잦은 교체작업에 따른 불편과 교체작업 중 염기를 내포한 해수가 전자회로 내부에 유입되어 고장을 일으키는 문제점을 해결하기 위하여 자급 전원장치를 발광 전원으로 구성하고 발광체는 외부와 완전히 밀폐시켜 제품을 반영구적으로 사용할 수 있는 상하이동형 자가발전 모듈을 제공한다 발광체의 유도전류 발생부와 전기적으로 연결되는 LED 발광부는 콘덴서와 저항을 포함하는 전자회로와 연결되어, 유도전류 발생부에 형성된 코일에서 출력되는 전원 접압을 콘덴서에서 충전하여 일정시간 간격으로 방전시킴으로서 LED 발광부가 일정 주기로 점멸할 수 있도록 함으로서 집어등으로 유집된 오징어가 채낚시를 쉽게 인식하고 접근할 수 있도록 하여 채낚시 어업에서의 조획성능을 높일 수 있다
Abstract:
The present invention relates to a fodder supplying device installed with a fish culturing holder so as to feed cultured fish. More specifically, while a fodder storing tank for storing a floating-type fodder is settled on the seabed, a fodder feeding pipe and a fodder discharging pipe are respectively connected with the top end and bottom end of the fodder storing tank. At the outlet side of the fodder discharging pipe, a fodder distributing pipe equipped with a valve tool and a vacuum composing pipe equipped with a pump tool are sequentially connected. A seawater feeding pipe equipped with a valve tool is connected with the vacuum composing pipe, and a fodder supplying pipe extended toward the bottom side central part of a holder net is connected with the inlet part of the seawater feeding pipe. The valve tool and pump tool are made to come in contact with a control buoy having a battery and a control tool equipped therein. Accordingly, fodder feeding into the vacuum composing pipe using the pressure difference of the atmospheric pressure and negative pressure and floating-type fodder supplying into the holder net by means of a seawater supply can be sequentially and repeatedly performed by means of the valve tool and pump tool. Bottom-up dispersing-type fodder supplying which is most appropriate when feeding cultured fish is performed, so that the cultured fish can be evenly grown. Moreover, unneeded waste in terms of cost, manpower, and fodder needed for managing feeding can be minimized, and breakdowns and malfunctions of the fodder supplying device caused by waves can be preemptively prevented.
Abstract:
PURPOSE: Provided is a bio-degradable aliphatic polyester-based resin composition useful for fishing implements such as a gill net and a fish trap, which has elongated degradation time and improved flexibility. CONSTITUTION: The bio-degradable aliphatic polyester-based resin composition for the manufacture of fishing implements comprises: 100 parts by weight of a bio-degradable aliphatic polyester having a number average molecular weight of 30,000-70,000, a weight average molecular weight of 100,000-300,000 and a melt flow index of 0.1-10 at 190deg.C and 2,160 g; 0.1-1.0 parts by weight of a hydrolysis inhibiting agent; and 0.1-5.0 parts by weight of a softening agent.
Abstract:
The present invention relates to a hanging culturing device where a mooring rope is connected with multiple pillars installed to be fixed on the seabed. A floating culturing frame is connected with the bottom end of each mooring rope, wherein the floating culturing frame is equipped with a longline rope or an adhesive net on which floats and hanging ropes are hanged at particular intervals, or a longline stick is installed at the top end of each pillar, wherein hanging ropes are hanged at particular intervals thereon. Floats are installed on the corresponding hanging rope. An expansion joint unit is applied to the corresponding rope. When the sea surface level decreases, the expansion joint unit rotates a wire bobbin in a direction in which a spiral spring is wound, and a connecting wire is released, so that the length of the mooring rope or the hanging rope is extended. When the sea surface level increases, through the restoring force of the spiral spring, the expansion joint unit re-winds the connecting wire onto the wire bobbin, so that the length of the mooring rope or the hanging rope is decreased. An object to be cultivated which is cultivated on the mooring rope or the culturing frame can be safely cultivated while being always disposed at a particular layer in the water irrespective of changes in the water surface level. A phenomenon in which the object to be cultivated is overexposed to the outside when the water surface level decreased and a phenomenon in which the object to be cultivated judders and is tangled due to the extended length of the rope are minimized. Accordingly, manpower and costs consumed to manage the object to be cultivated can be minimized, and the quality and productivity of the object using a hanging culturing technique can be remarkably improved.