CN213074049U

CN213074049U - Net-covering net cage for big and small netting

Info

Publication number: CN213074049U
Application number: CN202021516917.4U
Authority: CN
Inventors: 刘琨; 张璐; 陈昭廷; 陈金山; 沈智宾; 董韶光; 赵晓霞
Original assignee: Qingdao Guoxin Ocean Ranch Development Co ltd
Current assignee: Qingdao Guoxin Ocean Ranch Development Co ltd
Priority date: 2020-07-28
Filing date: 2020-07-28
Publication date: 2021-04-30
Anticipated expiration: 2030-07-28

Abstract

The utility model belongs to the technical field of deep open sea is bred, a big or small netting pullover box. The device comprises a large net cage, wherein a guardrail is arranged at the edge of an opening above the large net cage, and a plurality of cable rollers are arranged on the guardrail; a small net cage with an opening at the upper part is arranged in the large net cage, the top of the small net cage is wound on the corresponding cable roller through a plurality of fixed cables, an overturning cable is arranged on one side of the bottom of the small net cage, and the free end of the overturning cable is wound on the cable roller; the mesh number of the large net cage is larger than that of the small net cage. The net-sleeved net cage of the utility model reduces the risk that fish fries can not adapt to deep and open sea culture environment due to undersized specifications and die; the culture loss of the cage culture fishes in the transportation and transfer process due to overhigh water temperature is reduced; the death risk caused by the stress reaction in the transferring process due to the overlarge fish fries is reduced; reduce the culture cost of the cultured fishes.

Description

Net-covering net cage for big and small netting

Technical Field

The utility model belongs to the technical field of deep open sea is bred, a big or small netting pullover box.

Background

At present, before culturing seedlings in deep and far sea culture facilities (such as wind and wave resistant net cages, deep sea large net cages and the like), a transitional culture link is needed to be carried out, and two modes of culturing fish steaks and land culture workshops are mainly adopted.

The cultured fish steaks are mostly in ports or bays which are relatively near offshore, sea areas with small wind waves are selected, buoys or foam balls are used as supports, square fish steaks are built on the sea areas by using wood boards or PP plates, and the middle square area is hung with a net for fish culture. After the cultured seedlings grow to a certain size and can adapt to the deep and open sea culture environment, the cultured seedlings are transported to deep sea culture facilities.

In the fish raft culture mode, because the water changing speed of the offshore area is low, the water quality is poor, the water depth is shallow, and the water temperature change amplitude is large, the fish culture can be greatly influenced; meanwhile, fish steak cultivation in one place for a long time can lead fish feces to be accumulated at the bottom of the cultivation sea area, and the rotten and smelly substrate can damage water quality and breed fish disease and bacteria. On the other hand, the fish raft culture water body is relatively small, the culture density is increased along with the growth of culture seedlings, and the risk of fish disease outbreak exists. Finally, the fish raft culture variety is bound to have the operation of falling fish, and improper manual operation can lead to the loss of the culture variety in the link.

The land aquaculture workshop is that to breed the seedling and continue to cultivate with traditional land aquaculture workshop mode, increases fodder according to the growth situation and throws the feed volume, and along with later stage breed seedling increase, breed pond breed density increases, divides the mode of dividing the seedling to divide to breed more and breeds the pond through the manual work. Meanwhile, the daily cultivation management work such as cleaning and maintenance of the cultivation pond is increased along with the increase of the cultivation scale.

The land cultivation workshop has higher requirements on cultivation equipment and cost in the later-stage cultivation seedling process, and the concrete expression is as follows: firstly, the water changing quantity and the oxygen filling quantity of a workshop are required to be larger, so that the burden of water changing equipment and oxygen filling equipment of a cultivation workshop is increased, and once fault conditions such as power failure and damage occur, serious loss can be caused if the water changing equipment and the oxygen filling equipment cannot be repaired in a short time; and secondly, the feed is consumed day by day when the seedlings grow up along with the growth of the culture seedling specifications, and more manpower and material resources are needed for cleaning and maintaining the culture pond. In addition, after the cultured fries reach the culture specification of the placeable net cage, the water temperature of the local sea area also reaches a higher category, and the fish is transported to the net cage under the condition, so that the transportation loss is large.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a big or small netting oversleeve box with a net has solved the above-mentioned defect problem among the prior art, helps breeding fish to resist marine torrent, adapts to deep open sea box with a net aquaculture environment in advance, practices thrift the cost of farming, labour saving and time saving, convenient management.

In order to achieve the purpose, the utility model is realized by adopting the following technical scheme:

the utility model provides a big and small netting net cage, which comprises a big net cage, wherein a guardrail is arranged at the edge of an opening above the big net cage, and a plurality of cable rollers are arranged on the guardrail; a small net cage with an opening at the upper part is arranged in the large net cage, the top of the small net cage is wound on the corresponding cable roller through a plurality of fixed cables, an overturning cable is arranged on one side of the bottom of the small net cage, and the free end of the overturning cable is wound on the cable roller; the mesh number of the large net cage is larger than that of the small net cage.

Furthermore, a plurality of falling stones are additionally arranged at the bottom of the small net cage.

Furthermore, a detachable cover net is additionally arranged above the small net cage.

Furthermore, the mesh number of the large net cage is 5cm, and the mesh number of the small net cage is 2 cm.

Adopt above-mentioned technical scheme, the beneficial effects of the utility model are that:

the utility model simplifies the operation flow of the traditional cage culture seedling culture, enables the small-sized cultured fishes to adapt to the deep and open sea cage culture environment in advance, saves the land culture cost, shortens the culture period, saves time and labor, and improves the culture efficiency and the output quality; the small-sized fish farming method is beneficial to resisting against marine torrent, and ensures the safety of the farming environment while ensuring the adaptation to the deep and open sea farming environment. The mode has innovated the breed mode of northern box with a net small dimension fish, has improved breed efficiency and output quality again. Greatly improves the survival rate of the fish fry and provides powerful guarantee for the deep and open sea culture of the fish.

1. The influence of the water flow speed on small-sized seedlings is weakened: utilize outside big net clothing to add the double-deck net clothing structure of inside little net clothing, intensive mesh plays the buffering rivers effect, reduces the influence of sea area torrent rivers to small dimension seed, lets small dimension breed fish adapt to deep and far-sea cage culture environment in advance.

2. Shortening the culture period of small-size seedlings: aiming at the situation that the fries need to reach a larger specification before being put into a culture sea area for cage culture, the method can put the fries with smaller specifications into a cage culture environment in advance on the premise of ensuring the survival rate and the growth rate, shortens the culture period of the fries in a land culture workshop, and saves time and labor.

3. The net cage culture cost of small-size seedlings is saved: on the premise of ensuring the survival rate and the growth rate of the cultured seedlings. The small-size offspring seeds are adapted to the cage culture environment in advance, so that the culture cost of land offspring seeds from small-size culture to large-size culture is saved; other zooplankton in the natural seawater are fully utilized as supplementary bait sources, so that the breeding efficiency is improved; meanwhile, the small-size seedlings have the advantage of being more convenient to transport compared with the large-size seedlings, so that the transportation cost is saved, and the enterprise benefit is improved;

4. improving the breeding quality of small-size seedlings: the small-size seedlings can adapt to the seawater environment in advance, and compared with the gentle culture environment of a land culture workshop, the small-size seedlings can fully utilize turbulent water flow to exercise the small-size seedlings, so that the meat compactness is improved, and the mouthfeel is improved. The mode has innovated the breed mode of northern box with a net small dimension fish, has improved breed efficiency and output quality again.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

FIG. 1 is a schematic structural view of a large and small netting pullover net cage of the present invention;

FIG. 2 is a view of the cable roller of the present invention;

the respective symbols in the figure are as follows: the device comprises a large net cage 1, a small net cage 2, a guardrail 3, a fixed cable 4, a cable roller 5, a turnover cable 6 and a falling stone 7.

Detailed Description

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1 and 2, the large and small netting net cage provided by this embodiment comprises a large net cage 1, and a guardrail 3 is arranged at the edge of an opening above the large net cage. A plurality of cable rollers 5 are arranged on the guardrail. The cable roller loosens and tightens the cable through the rocker, and the length and tightness of the cable are adjusted.

The big net cage is internally provided with a small net cage 2 with an opening at the upper part, the perimeter of the big net cage is 90m, the big net cage is matched with a 7+1 m-sized netting, and the netting mesh number is 5 cm. The circumference of the small net cage is 20m, the specification of the netting is 4+1 m, and the mesh number of the netting is 2 cm. A detachable cover net is additionally arranged above the small net cage. A plurality of falling stones 7 are additionally arranged at the bottom of the small net cage.

The top of the small net cage is wound on the corresponding rope roller through six fixed ropes 4, two adjacent connecting points on one side of the bottom of the small net cage are provided with two overturning ropes 6, and the free ends of the overturning ropes are wound on the rope roller.

In the using process, small-sized seedlings are put into the small net cage for temporary culture, the position of the small net cage in the large net cage is adjusted at any time through the six rope rollers for fixing the free ends of the ropes, the effect of adjusting the position of the small net cage is achieved through tightness of different positions, friction with the peripheral large net cage is avoided, and the automatic bait casting machine and the lamplight bait device are matched to provide bait for cultured fishes. After the small-size fries grow up to be suitable for the normal net cage culture environment, unfastening the fixed mooring ropes on the water of the small net cage, and simultaneously lifting the other two overturning mooring ropes connected with the bottom of the small net cage, so that the small net cage is reversely buckled in the large net cage, and the cultured fishes are transferred to the large net cage without damage.

Of course, the above description is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the embodiments of the present invention. The present invention is not limited to the above examples, and the technical field of the present invention is equivalent to the changes and improvements made in the actual range of the present invention, which should be attributed to the patent coverage of the present invention.

Claims

1. A large and small netting net sleeving net cage comprises a large net cage (1), wherein a guardrail (3) is arranged at the edge of an opening above the large net cage (1), and is characterized in that a plurality of cable rollers (5) are arranged on the guardrail (3); a small net cage (2) with an opening at the upper part is arranged in the large net cage (1), the top of the small net cage (2) is wound on the corresponding rope roller (5) through a plurality of fixed ropes (4), one side of the bottom of the small net cage (2) is provided with a turning rope (6), and the free end of the turning rope (6) is wound on the rope roller (5); the mesh number of the large net cage (1) is larger than that of the small net cage (2).

2. A large and small netting pullover net cage according to claim 1, characterized in that a plurality of drop stones (7) are added at the bottom of the small net cage (2).

3. A large and small netting pullover net cage according to claim 1, characterized in that a detachable cover net is additionally installed above the small net cage (2).

4. A large and small netting pullover box as claimed in claim 2 or 3, characterized in that the net mesh number of the large box (1) is 5cm, and the net mesh number of the small box (2) is 2 cm.