The traditional crab cage, the current lack of heavy equipment cage professional investment income, so the cage can only be made by the technical limitations of the production of individual small crab cage, cage by cage population size also will affect the partial small, a small amount caused by the cage port crab difficult to enter the body, but also affect the clocked into a plurality of crab, the fishing yield is not high; Further, crab cage amount of the fine, light weight, impact on the sea floor is susceptible to drift currents Therefore lightweight crab cages only for operation in shallow water, deep-sea fishing to not extend. Because behind fishing gear and methods, the fishing boats are high-density build-fishing in shallow water, it led to the emergence of offshore fishery resources depletion phenomenon; cage single-layer structure, not strong, and in the course of fishing, the nets also easy to wear , short life.
A crab trap cage, the cage comprising, nets and fishy trap tank, fishy lure box body is provided in the cage, the cage is formed of inner and outer floor frame, the outer frame and the inner frame through a link is integrally connected to the nets provided on the inner frame; crab is provided with an inlet on the side wall of the inner frame. The crab inlet port is constituted by an outer frame and an inner frame opening, an outer opening provided on the side wall frame of the inner frame, the inner frame is located within the mouth of the inner frame and opening frame obliquely upward.
The present invention beneficial effects: As the new design crab cage and cage supporting the machinery investment income at the same time the research and development, the crab cage design breakthrough in the traditional way, a broad set of crab cage entrance, the various specifications crab or crab simultaneously into the plurality of conditions is provided, the outer cage mouth from low to high settings, so crabs crawl easy feeding into the cage, the inlet end of the cage is not formed floating height and bottom of the cage, so that the loss of relying crabs crawl not ladder flight, flight and to achieve the purpose of improving anti-capture yield; crab cages due to the newly designed by a steel frame composed of heavy weight, the effect of seabed currents less susceptible to drift, so as to achieve the requirements for deep-sea operations. Using double frame structure, not only durable, but also to play a role in protection nets, greatly improving the life of fishing gear.
a collector crab cage 1, the cage 9 comprises, nets trap tank 1 and fishy, fishy lure box 9 disposed in the cage, the cage 9 are two inner and outer layer constituting the frame, the outer frame 2 is connected by a connecting rod 3 and the inner frame 4 as a whole, the net 1 is provided on the inner frame 4; crab inlet provided on the side wall 5 of the inner frame 4.
The crab inlet port 5 is constituted by an outer frame 6 and the frame 7 in the mouth, mouth frame 6 provided on the side wall of the inner frame 4, frame 7 is positioned within the opening frame and the inner frame 4 toward the opening obliquely upward.