CN216533277U

CN216533277U - Star-shaped self-current-blocking sinking-floating wave-avoiding net cage

Info

Publication number: CN216533277U
Application number: CN202122552642.0U
Authority: CN
Inventors: 黄桂芳; 刘波; 丁兰
Original assignee: Fisheries Research Institute Of Fujian (fujian Aquatic Disease Prevention Center)
Current assignee: Fisheries Research Institute Of Fujian (fujian Aquatic Disease Prevention Center); China Three Gorges Corp Fujian Branch
Priority date: 2021-10-22
Filing date: 2021-10-22
Publication date: 2022-05-17
Anticipated expiration: 2031-10-22

Abstract

The utility model discloses a star-shaped self-flow-blocking sinking and floating wave-avoiding net cage, which comprises a frame unit and a netting unit, and is characterized in that: the frame unit consists of a pipe body and comprises an upper frame, a lower frame and a vertical connecting pipe; the upper frame comprises a first square frame and a second square frame; the structure of the lower frame is the same as that of the upper frame; a plurality of vertical connecting pipes are arranged between the upper frame and the lower frame; the netting unit comprises a bottom netting for sealing the lower frame, an inner net for sealing between each inner side edge of the upper triangular frame and each inner side edge of the corresponding lower triangular frame, and an outer net for sealing between each outer side edge of the upper triangular frame and each outer side edge of the corresponding lower triangular frame; also comprises a mooring fixing unit. The utility model can effectively overcome the influence of ocean currents on the net cage and the cultured objects, ensure the stable sinking and floating process, effectively avoid wind waves during sinking, and greatly simplify the management difficulty and labor intensity during floating.

Description

Star-shaped self-current-blocking sinking-floating wave-avoiding net cage

Technical Field

The utility model relates to a star-shaped self-blocking current sinking and floating wave-avoiding net cage.

Background

At present, China is developing deep and offshore aquaculture vigorously, but the deep and offshore aquaculture conditions are severe, and applicable deep and offshore mariculture facilities are urgently needed. The large-scale floating wind wave-resistant net cages used in China at present mainly comprise two types, namely a full-rigid metal net cage, such as a flying saucer-shaped floating wind wave-resistant net cage introduced from the United states, and a floating type and a sinkable wind wave-resistant net cage taking an HDPE (high-density polyethylene) frame gravity type floating net cage in Norway as a prototype. The full-rigid metal net cage has strong anti-flow deformation capability, but has poor wind and wave resistance due to serious insufficient flexibility of a frame structure, seawater corrosion and the like. Although floating and sinkable storm-resistant net cages taking "HDPE frame gravity type floating net cage" in Norway as a prototype have simple structure and convenient maintenance, the floating and sinkable storm-resistant net cages have two main defects, namely, the anti-flow deformation performance is poorer, when the ocean current intensity in a sea area is higher, the drifting of the net cover is more serious, the culture space is sharply reduced, and the drifting net cover and fish body generate friction to cause fish body damage and influence the culture effect; secondly, the operation is difficult, and the overturning and overturning can be caused by overlarge inclination angle of the frame in the sinking and floating process.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a star-shaped self-flow-blocking sinking and floating wave-avoiding net cage.

The technical scheme adopted by the utility model for solving the technical problem is as follows:

the utility model provides a star is from keeping off unrestrained box with a net of floating of class ups and downs, includes frame element, netting unit, wherein:

the frame unit consists of a pipe body and comprises an upper frame, a lower frame and a vertical connecting pipe; the upper frame comprises a first square frame and a second square frame, wherein the first square frame and the second square frame are positioned on the same plane, the central points of the first square frame and the second square frame are overlapped, the four corners of the first square frame and the second square frame are staggered by an angle respectively, and eight corners of the two square frames form eight triangular frames; the structure of the lower frame is the same as that of the upper frame; a plurality of vertical connecting pipes are arranged between the upper frame and the lower frame;

the netting unit comprises a bottom netting for sealing the lower frame, an inner net for sealing between each inner side edge of the upper triangular frame and each inner side edge of the corresponding lower triangular frame, and an outer net for sealing between each outer side edge of the upper triangular frame and each outer side edge of the corresponding lower triangular frame.

Also comprises a mooring fixing unit.

In a preferred embodiment, the first square frame and the second square frame are rectangular frames respectively.

The utility model also adopts the technical scheme that:

the utility model provides a star is from keeping off a class ups and downs net cage of keeping away unrestrained, wherein, a star is from keeping off a class ups and downs net cage of keeping off unrestrained, includes frame element, netting unit, wherein:

the frame unit consists of a pipe body and comprises an upper frame, a lower frame and a vertical connecting pipe; the upper frame comprises an inner octagonal frame and eight outer triangular frames, wherein one side of each triangular frame, namely the inner side, is overlapped with one side of the regular octagonal frame; the structure of the lower frame is the same as that of the upper frame; a plurality of vertical connecting pipes are arranged between the upper frame and the lower frame

Also comprises a mooring fixing unit.

In a preferred embodiment, the octagonal frame is a regular octagonal frame.

In a preferred embodiment, the tube body of the frame unit is an HDPE hollow tube.

In a preferred embodiment, a vertical connecting pipe is correspondingly arranged between each corner of the upper frame triangular frame and each corner of the lower frame triangular frame.

In a preferred embodiment, two crossed vent pipes are arranged on the upper frame, two ends of each vent pipe are respectively inserted into the upper frame, and air inlet and exhaust ports are arranged at the crossed positions of the vent pipes; similarly, two crossed water pipes are arranged on the lower frame, two ends of each water pipe are respectively inserted into the lower frame, and a water inlet and a water outlet are arranged at the crossed positions of the water pipes.

In a preferred embodiment, the mooring unit includes a plurality of chains located on the lower frame and a weight located at a bottom end of the chains.

In a preferred embodiment, the mooring unit further comprises a plurality of tethers secured at one end to the frame unit and at the other end to the sea-bottom spud.

In a preferred embodiment, a buoy is also provided on the tether.

Compared with the background technology, the technical scheme has the following advantages:

1. the star-shaped self-flow-blocking up-down wave-avoiding net cage adopts a full rigid frame structure on the frame unit, can ensure that the netting can be fully expanded, and can ensure sufficient culture space.

2. The outer net forms a self-blocking structure, and avoids the damage to the central culture object caused by the too fast flow speed of seawater.

3. The triangular area between the outer net and the inner net can be used for culturing fishes for removing marine fouling organisms, and the potential safety hazard caused by fouling organism attachment of the netting can be effectively avoided.

4. Two crossed vent pipes and water pipes are respectively arranged on the upper frame and the lower frame, and the communicated frames form a variable buoyancy cavity, so that the stable sinking and floating of the net cage during the whole rest can be ensured, and the wind wave resistance can be improved.

Drawings

The utility model is further illustrated by the following figures and examples.

Fig. 1 is one of the three-dimensional schematic diagrams of the star-shaped self-blocking floating and sinking wave-avoiding net cage of the present invention.

Fig. 2 is a second perspective view of the star-shaped self-blocking floating net cage of the present invention.

Fig. 3 is a schematic perspective view of the frame.

Fig. 4 is a schematic view of the usage state of the present invention.

In the drawings

1 is a frame unit 2, a flow blocking net 3, a culture net 4, a mooring unit 5, an air inlet and outlet 6, a water inlet and outlet

Detailed Description

In the description of the present invention, it is to be understood that the terms "central," "lateral," "length," "width," "height," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "side," and the like, as used herein, are used in the orientation or positional relationship indicated in FIG. 1, merely to facilitate the description of the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention.

Referring to fig. 1 to 3, a star-shaped self-current-blocking ups and downs wave-avoiding net cage includes a frame unit 1, a netting unit, and a mooring unit.

The upper frame comprises two square frames, namely a first square frame 1-1 and a second square frame 1-2, wherein the first square frame 1-1 and the second square frame are positioned on the same plane, the four corners of the first square frame and the second square frame are staggered by an angle respectively, the central points of the first square frame and the second square frame are overlapped, and eight corners of the two square frames form eight triangular frames 1-3. In this embodiment, two square frames are the rectangle, and both centers overlap, and 45 degrees are staggered respectively to both four corners and place.

In another angle description, it can also be considered that the upper frame is composed of an inner regular octagonal frame and an outer eight triangular frames, wherein one side of each triangular frame overlaps with one side of the regular octagonal frame.

The lower frame has the same structure as the upper frame. A plurality of vertical connecting pipes 1-4 are arranged between the upper frame and the lower frame, specifically, each corner of the triangular frame 1-3 of the upper frame and each corner of the triangular frame of the lower frame are correspondingly provided with one vertical connecting pipe, so that a total of 12 vertical connecting pipes 1-4 are arranged.

Two crossed vent pipes 1-5 are arranged on the upper frame, two ends of each vent pipe 1-5 are respectively inserted into the first frame or the second frame, and an air inlet and an air outlet 5 are arranged at the crossed position of each vent pipe. Similarly, two crossed water pipes 1-5 are arranged on the lower frame, two ends of each water pipe 1-5 are respectively inserted into the first frame or the second frame, and a water inlet and outlet 6 is arranged at the crossed position of the water pipes.

A chain 4-2 is arranged downwards at each angle of each triangular frame of the lower frame, the bottom of the chain 4-2 is connected with a weight 4-1, and the weight 4-1 can be a weight such as an anchor block.

An inner net, namely a cultivation netting 3, is arranged between the regular octagonal frame inside the upper frame and the regular octagonal frame inside the lower frame, and an outer net, namely a flow blocking netting 4, is arranged between two sides of the triangular frame outside the upper frame and two sides of the triangular frame outside the lower frame. A bottom netting is disposed in the lower frame to close the bottom.

Furthermore, the whole arrangement can be further anchored, see fig. 4, by means of a number of tethers 7 or the like, said tethers 7 being fixed to the frame unit at one end and to the seabed, e.g. seabed spuds, at the other end. A float may be provided on the tether 7.

The use of the utility model is as follows:

the space formed in the upper regular octagonal frame and the lower regular octagonal frame is a main culture space; the upper triangular frame area can be used as a cage operation management platform, and a water body formed by the flow blocking netting (namely the area between the upper triangular frame and the lower triangular frame) can be used for culturing fishes for removing marine fouling organisms, such as black porgy, brown siganus, and the like.

1. Normal breeding

In the normal culture state of the net cage, only the upper frame floats on the sea surface. The bait can be sprayed by a bait casting machine or manually thrown by a buoyant raft type platform.

2. During typhoon attack

Before the typhoon attack comes, the whole net cage is sunk into the sea through field sinking and floating operation or remote control sinking and floating. At the moment, the weight 4-1 at the bottommost part of the net cage system is placed on the seabed, the distance between the bottommost part of the net cover and the seabed is adjusted according to the specific situation of the sea area, the net cage is guaranteed to be sunk to the maximum depth under the condition that the seabed sediment can not affect the cultured fishes, and the safety of the wind wave resistant net cage is guaranteed to the maximum extent.

The above description is only a preferred embodiment of the present invention, and therefore should not be taken as limiting the scope of the utility model, which is defined by the appended claims and their equivalents.

Claims

1. The utility model provides a star is from keeping off unrestrained box with a net of floating of heavy fender of class, includes frame element, netting unit, its characterized in that:

the netting unit comprises a bottom netting for sealing the lower frame, an inner net for sealing between each inner side edge of the upper triangular frame and each inner side edge of the corresponding lower triangular frame, and an outer net for sealing between each outer side edge of the upper triangular frame and each outer side edge of the corresponding lower triangular frame;

also comprises a mooring fixing unit.

2. The star-shaped self-current-blocking ups and downs wave-avoiding net cage as claimed in claim 1, wherein: the first square frame and the second square frame are rectangular frames respectively.

3. The utility model provides a star is from keeping off unrestrained box with a net of floating of heavy fender of class, includes frame element, netting unit, its characterized in that:

the frame unit consists of a pipe body and comprises an upper frame, a lower frame and a vertical connecting pipe; the upper frame comprises an inner octagonal frame and eight outer triangular frames, wherein one side of each triangular frame, namely the inner side, is overlapped with one side of the regular octagonal frame; the structure of the lower frame is the same as that of the upper frame; a plurality of vertical connecting pipes are arranged between the upper frame and the lower frame;

also comprises a mooring fixing unit.

4. The star-shaped self-current-blocking ups and downs wave-avoiding net cage as claimed in claim 3, wherein: the octagonal frame is a regular octagonal frame.

5. The star-shaped self-current-blocking sinking and floating wave-avoiding net cage according to any one of claims 1 to 4, characterized in that: the pipe body of the frame unit is an HDPE hollow pipe.

6. The star-shaped self-current-blocking sinking and floating wave-avoiding net cage according to any one of claims 1 to 4, characterized in that: and a vertical connecting pipe is correspondingly arranged between each corner of the upper frame triangular frame and each corner of the lower frame triangular frame.

7. The star-shaped self-current-blocking sinking and floating wave-avoiding net cage according to any one of claims 1 to 4, characterized in that: two crossed vent pipes are arranged on the upper frame, two ends of each small vent pipe are respectively inserted into the upper frame, and an upper air inlet and an upper air outlet are arranged at the crossed part of each vent pipe; two crossed water pipes are arranged on the lower frame, two ends of each water pipe are respectively inserted into the lower frame, and a water inlet and a water outlet are arranged at the crossed positions of the water pipes.

8. The star-shaped self-current-blocking sinking and floating wave-avoiding net cage according to any one of claims 1 to 4, characterized in that: the mooring unit comprises a plurality of chains positioned on the lower frame and a weight positioned at the bottom end of the chains.

9. The star-shaped self-current-blocking ups and downs wave-avoiding net cage according to claim 8, wherein: the mooring fixing unit further comprises a plurality of tethers, one ends of the tethers are fixed on the frame unit, and the other ends of the tethers are fixed on the seabed fixing piles.

10. The star-shaped self-current-blocking ups and downs wave-avoiding net cage according to claim 9, wherein: a buoy is also arranged on the tether.