CN217936905U

CN217936905U - Single point mooring type offshore bottom layer shellfish culture device

Info

Publication number: CN217936905U
Application number: CN202221901323.4U
Authority: CN
Inventors: 程远; 薛博茹; 赵云鹏
Original assignee: Dalian University of Technology; Ningbo Research Institute of Dalian University of Technology
Current assignee: Dalian University of Technology; Ningbo Research Institute of Dalian University of Technology
Priority date: 2022-07-21
Filing date: 2022-07-21
Publication date: 2022-12-02
Anticipated expiration: 2032-07-21

Abstract

The utility model provides a single point mooring type offshore bottom layer shellfish culture device, which comprises a staggered superposed net cage and an anti-dragging anchor, wherein the staggered superposed net cage is positioned at the bottom of the sea; the staggered superposed net cage comprises a bottom net cage and an upper net cage falling on the bottom net cage, and the upper net cage and the bottom net cage are arranged in a staggered manner; the bottom layer cylinder mould is connected with the anti-dragging anchor through an anchor chain; the bottom layer net cage is connected with the upper layer net cage through a lacing wire; and one end of the upper layer of the net cage, which is far away from the anchor chain, is connected with one end of the anchor rope, and the other end of the anchor rope is connected with the floating ball positioned on the sea surface. The utility model provides a dislocation stack formula cylinder mould design can effectively increase shellfish culture volume, and when the incoming current, under the effect of rivers power, dislocation stack formula cylinder mould floats, and breeding metabolic waste such as incomplete bait excrement and urine follows rivers and floats away, has guaranteed the regional quality of water environment of breed. Is favorable for improving the quality of the cultured organisms.

Description

Single point mooring type offshore bottom layer shellfish culture device

Technical Field

The utility model relates to an aquaculture technical field is a single point mooring formula offshore bottom shellfish breeding device particularly.

Background

At present, the shellfish culture mode in northern China is mainly raft type suspension cage (lifting rope) culture on the surface layer of shallow sea. The raft-type cage culture mode is suitable only for the superficial zone of offshore areas with calm winds and waves, and therefore, the culture area is limited to the inner bay and the shallow sea. However, with the increasing market demand, the suspension cage cultivation density of shellfish is greatly increased, and a large amount of dirt is generated along with the increase of the market demand. Taking one of the largest shellfish culture bases in China, chanhai county in Liaoning province as an example, large-scale high-density shellfish buoyant raft net cage culture is carried out in sea areas in the year, and tens of thousands of tons of pollutants are generated every year. Annual deposition of these fouling materials on the seabed has resulted in the formation of a thick fouling layer, which can cause long-term contamination of the aquaculture sea. In the past, large-size high-quality oysters cannot be cultured, and irreversible damage is caused to the sea area.

In addition, the light in superficial sea area is strong, and the attachment is many, and attachments such as mussels of a large amount of easy attachments on the surface of cage increase cage structure burden, also seriously influence breed thing simultaneously and ingest, cage blowdown etc. have further influenced growth, quality and the market value of shellfish again. In addition, the raft cage culture near the coast affects the sea area landscape and the navigation of sea surface ships, and causes inconvenience to the sea navigation management.

SUMMERY OF THE UTILITY MODEL

According to the technical problem, a single-point mooring type offshore bottom layer shellfish culture device is provided.

The utility model discloses a technical means as follows:

a single point mooring type offshore bottom layer shellfish culture device comprises a staggered superposed net cage and an anti-dragging anchor, wherein the staggered superposed net cage is positioned in the downstream direction of the anti-dragging anchor;

the staggered superposed net cage comprises a bottom net cage and an upper net cage falling on the bottom net cage, and the upper net cage and the bottom net cage are arranged in a staggered manner;

the bottom layer cylinder mould is connected with the anti-dragging anchor through an anchor chain;

one end of the bottom layer mesh cage, which is far away from the anchor chain, is connected with one end of the lacing wire, and the other end of the lacing wire is connected with one end of the upper layer mesh cage, which is far away from the anchor chain;

and one end of the upper net cage far away from the anchor chain is connected with one end of the anchor rope, and the other end of the anchor rope is connected with a floating ball on the sea surface.

Preferably, the bottom net cage is connected with the anchor chain through a compression spring.

Preferably, the anchor chain is connected with the anti-dragging anchor through a semicircular ball bearing.

Preferably, a bracket is fixed below the bottom layer net cage.

Preferably, the bottom layer netpen and the upper layer netpen are both in the shape of a circular cake.

Compared with the prior art, the utility model has the advantages of it is following:

1. the staggered overlapped type net cage design can effectively increase the shellfish culture volume.

2. When the water flows, the staggered overlapped net cages float up under the action of water flow force, and breeding metabolic wastes such as residual baits, excrement and the like float away along with the water flow, so that the water quality environment of a breeding area is ensured. Is favorable for improving the quality of the cultured organisms.

3. When the water flow component is larger, the compression spring can provide reverse thrust for the bottom layer cylinder mould so as to resist the water flow force.

4. The arrangement of the semicircular ball bearings limits the moving range of the staggered overlapped cylinder mould.

Based on the reason, the utility model discloses can extensively promote in fields such as shellfish cultivation.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a single-point mooring offshore bottom layer shellfish culture device according to an embodiment of the present invention.

Fig. 2 is a top view of a single point mooring offshore bottom layer shellfish culture device according to an embodiment of the present invention.

Fig. 3 is a schematic view of the bottom layer mesh cage according to the embodiment of the present invention.

FIG. 4 is a state diagram and a force analysis diagram of the cultivation device when the vertical water diversion direction is-X direction and is smaller in the embodiment of the present invention.

FIG. 5 is a state diagram of the cultivation apparatus according to the embodiment of the present invention, wherein the vertical water diversion direction is the-X direction and the water flow is gradually increased.

FIG. 6 is a state diagram and a force analysis diagram of the cultivation device according to the embodiment of the present invention, when the vertical water flow direction is the-X direction and the water flow is large.

FIG. 7 is a state diagram and a force analysis diagram of the cultivation apparatus according to the embodiment of the present invention, when the vertical water flow direction is the X direction.

In the figure: 1. anti-dragging anchor; 2. a bottom layer cylinder mould; 3. an upper net cage; 4. an anchor chain; 5. stretching a rib; 6. an anchor line; 7. a floating ball; 8. a compression spring; 9. a semicircular roller bearing; 10. and (4) a bracket.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element in question must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present invention: the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

For ease of description, spatially relative terms such as "over … …", "over … …", "over … …", "over", etc. may be used herein to describe the spatial positional relationship of one device or feature to another device or feature as shown in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.

As shown in fig. 1 to 7, a single point mooring type offshore bottom layer shellfish culture device comprises a staggered superposed net cage and a dragging-resistant anchor 1 which are positioned on the seabed, wherein the staggered superposed net cage is positioned in the downstream direction of the dragging-resistant anchor 1;

the staggered superposed cylinder mould comprises a bottom cylinder mould 2 and an upper cylinder mould 3 falling on the bottom cylinder mould 2, and the upper cylinder mould 3 and the bottom cylinder mould 2 are arranged in a staggered manner; the bottom layer net cage 2 and the upper layer net cage 3 are both in a round cake shape. A bracket 10 is fixed below the bottom layer net cage 2.

The bottom layer cylinder mould 2 is connected with one end of the anchor chain 4 through a compression spring 8, and the other end of the anchor chain 4 is connected with the anti-dragging anchor 1 through a semicircular roller bearing 9.

One end of the bottom layer net cage 2, which is far away from the anchor chain 4, is connected with one end of a tie bar 5, and the other end of the tie bar 5 is connected with one end of the upper layer net cage 3, which is far away from the anchor chain; the lacing wire 5 is made of elastic material, such as rubber.

And one end of the upper layer of the net cage 3, which is far away from the anchor chain 4, is connected with one end of an anchor rope 6, and the other end of the anchor rope 6 is connected with a floating ball 7 positioned on the sea surface.

As shown in fig. 4, when the vertical water flow dividing direction is the-X direction and is small, the staggered and stacked netpen is located on the seabed, and the anchor chain 4 is not stressed.

As shown in fig. 5, when the vertical water flow direction is the-X direction and the water flow is gradually increased, the bottom layer net cage 2 is still located on the seabed and is still stationary, the upper layer net cage 3 floats along the water flow direction, and the two layers of net cages are connected by the tie bars 5. The lacing wires 5 are beneficial to adjusting the stress between the upper layer net cage 3 and the bottom layer net cage 2, so that the stress of each net cage is uniform. The anchor chain 4 is still in a relaxed state and is not stressed.

As shown in fig. 6, when the vertical water flow direction is the-X direction and the water flow is large, the upper layer netpen 3 and the bottom layer netpen 2 are subjected to the water flow force and float along the water flow direction. The anchor chain 4 is in tension. The staggered overlapped type mesh cage moves in a certain range along with the flow field.

As shown in fig. 7, when the vertical water flow splitting direction is the X direction, and the water flow component is small, the staggered and stacked netpen is located on the sea floor, and the anchor chain 4 is not stressed. When the water flow component is large, the compression spring 8 can give a reverse thrust to the bottom layer cylinder mould 2 to resist the water flow force. The upper net cage 3 floats along the water flow direction, and the lacing wire 5 between the two net cages plays a role in stress adjustment.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A single point mooring type offshore bottom layer shellfish culture device is characterized by comprising a staggered superposed net cage and an anti-dragging anchor which are positioned on the sea bottom;

the staggered superposed cylinder mould comprises a bottom cylinder mould and an upper cylinder mould falling on the bottom cylinder mould, and the upper cylinder mould and the bottom cylinder mould are arranged in a staggered manner;

one end, far away from the anchor chain, of the bottom-layer mesh cage is connected with one end of a tie bar, and the other end of the tie bar is connected with one end, far away from the anchor chain, of the upper-layer mesh cage;

and one end of the upper layer of the net cage, which is far away from the anchor chain, is connected with one end of the anchor rope, and the other end of the anchor rope is connected with the floating ball positioned on the sea surface.

2. The single point mooring, offshore bottom mussel culture device according to claim 1, wherein the bottom net cage is connected to the anchor chain by a compression spring.

3. The single point mooring, offshore bottom layer shellfish farming device of claim 1, wherein said anchor chain and said anti-drag anchor are connected by a semi-circular ball bearing, the axis of said semi-circular ball bearing extending in a vertical direction.

4. The single point mooring offshore bottom shellfish farming device of claim 1, wherein a bracket is fixed below the bottom net cage.

5. The single mooring offshore bottom shellfish farming device of claim 1, wherein both the bottom net cage and the upper net cage are pie-shaped.