CN110810295A

CN110810295A - Mariculture net cage

Info

Publication number: CN110810295A
Application number: CN201911266532.9A
Authority: CN
Inventors: 楼涛涛; 刘莉莉
Original assignee: Zhejiang Ocean University ZJOU
Current assignee: Zhejiang Ocean University ZJOU
Priority date: 2019-12-11
Filing date: 2019-12-11
Publication date: 2020-02-21

Abstract

The invention provides a mariculture net cage, and belongs to the technical field of aquaculture equipment. The net cage solves the technical problems that an existing mariculture net cage is high in cost, seedlings are put into the net cage, aquatic products are inconvenient to harvest, and the like. The mariculture net cage comprises a plurality of ring bodies arranged at intervals and a net body used for connecting adjacent ring bodies, wherein the ring body at the uppermost end is connected with an annular floater, a barrel body is arranged below the ring body at the lowermost end, the ring body at the lowermost end is connected with the barrel body through the net body, the bottom of the barrel body is connected with a sinker, a plurality of sliding rings are arranged at intervals in the circumferential direction on the inner side of the middle part of the net body, a traction rope penetrates through the sliding rings, the upper end of the traction rope is fixed on the annular floater or the ring body at the uppermost end; the cylinder mould is matched with a hollow long pipe for putting in the seedlings. According to the net cage, a plurality of culture spaces can be obtained without using a bottom net sheet to isolate the net cage, the production cost is low, the seedlings are placed by using the long hollow pipes, aquatic products are harvested by using the floating bucket, and the aquatic products can be conveniently and quickly placed and harvested by the seedlings.

Description

Mariculture net cage

Technical Field

The invention belongs to the technical field of aquaculture net cages, and relates to a mariculture net cage.

Background

The net cage suspended in water is usually used for culturing aquatic products such as shellfish, the net cage is divided into a plurality of isolation layers from top to bottom, a certain amount of shellfish can be cultured in each isolation layer, and the cultured aquatic products can be prevented from being washed away by seawater.

Chinese patent (publication number: CN 207252570U; publication date: 2018-04-20) discloses a multi-layer scallop cultivation net cage, which comprises a net cage body surrounded by a plurality of bottom net sheets and side net sheets, wherein net sheet frameworks formed by bending iron wires are arranged on the bottom net sheets in a penetrating manner, waterproof pipe sleeves are coated outside the iron wires, two ends of each waterproof pipe sleeve are arranged in a sealing manner, the bottom net sheets and the side net sheets are both monofilament knotted net sheets, the bottom net sheets are provided with 20 layers, and the distance between every two adjacent bottom net sheets is 15-25 cm.

The multi-layer scallop cultivation net cage disclosed in the patent document is very inconvenient because the net cage needs to be taken out of seawater to place seedlings and harvest grown aquatic products; the net cage body can only form a plurality of culture spaces by isolating the bottom net piece, and the cost of the net cage is increased.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a mariculture net cage, which aims to solve the technical problems that: how to improve the convenience of placing seedlings and harvesting aquatic products and reduce the production cost of the net cage.

The purpose of the invention can be realized by the following technical scheme:

a mariculture net cage comprises a plurality of ring bodies which are arranged in parallel along the vertical direction at intervals and net bodies which are used for connecting the adjacent ring bodies; the device is characterized in that the ring body at the uppermost end is connected with an annular floater positioned above the ring body, a barrel body is arranged below the ring body at the lowermost end, the ring body at the lowermost end is connected with the barrel body through a net body, the bottom of the barrel body is connected with a sinker, a plurality of slip rings are circumferentially arranged on the inner side of the middle part of the net body at intervals, a traction rope penetrates through the slip rings, the upper ends of the traction ropes sequentially penetrate through the slip rings on the net body from bottom to top and are fixed on the annular floater or the ring body at the uppermost end, the adjacent net bodies are tightened under the action of the traction rope to form a culture space, a floating barrel is arranged in the barrel body, and the section outer diameter of the floating barrel is smaller than the inner diameters of the ring body; the cylinder mould is also provided with a hollow long pipe which can extend into the culture space to put in the seedlings.

The working principle is as follows: the net cage in the technical scheme is made of ring bodies and net bodies, and the ring-shaped floater connected with the ring body on the uppermost layer and the sinker connected with the barrel body are convenient to enable the net cage to be vertically positioned in water; the slip ring positioned in the middle of the inner side of the net body and the traction rope penetrating through the slip ring are utilized to enable the ring body and the net body positioned on the upper side and the lower side of the ring body to form a culture space, a net cage does not need to be isolated by bottom net cloth, and the production cost of the net cage is reduced; when the seedling is put in to needs, only need loosen the haulage rope, the breed space will be opened, the cavity long tube stretches into in the cylinder mould, the cavity long tube can begin to put in the seedling to the breed space from lower to upper from the floating bucket, grow up at the seedling and can harvest, loosen the haulage rope, make the aquatic products that are located each breed space fall into the floating bucket in, the floating bucket can come-up to the sea under the buoyancy, just can harvest the aquatic products, needn't take out whole cylinder mould from the aquatic, the convenience of placing the seedling and results aquatic products in the cylinder mould has been improved.

In foretell mariculture cylinder mould, the upper end of floating bucket has opening and the upper end tip has the fender edge that leans out, the downside that keeps off the edge supports and leans on the arris of staving upper end, the external diameter that keeps off the edge is less than the internal diameter of ring body and annular float. Set up on the floating bucket and keep off along to in better taking aquatic products into the floating bucket.

In the above mariculture net cage, the blocking edge is made of a flexible material. Prevent to keep off under the action of gravity along with keeping off the staving upper end of following the butt and receive the damage.

In the mariculture net cage, a transverse partition plate is arranged in the floating barrel, the side edge of the partition plate is fixedly connected with the inner wall of the floating barrel, a first cavity on the upper side of the partition plate and a second cavity on the lower side of the partition plate are arranged in the floating barrel, a water pipe communicated with the first cavity and the second cavity is inserted in the floating barrel, and the end part of the water pipe is connected with a power part for pumping water. The first cavity is used for cultivating aquatic products, the water quantity in the second cavity is controlled by the water pipe communicated with the second cavity and the power part for pumping water, so that the buoyancy of the floating barrel is controlled, the lifting of the net cage in seawater is controlled, and a guarantee is provided for the net cage to better adapt to changes of offshore weather and stormy waves.

In the mariculture net cage, the side wall of the floating bucket, which is positioned on the upper side of the partition plate, is provided with a plurality of through holes for draining water. In the floating process of the floating barrel, seawater can flow out of the floating barrel from the cavity I through the through holes, and the impact force of the seawater on the floating barrel is reduced.

In the mariculture net cage, the floating bucket is connected with a lifting rope, and the upper end of the lifting rope is fixed on the annular floater or the uppermost ring body. When aquatic products in the floating bucket are heavier, buoyancy force borne by the floating bucket is not enough to enable the floating bucket to float upwards, and lift force can be provided for the floating bucket through the lifting rope.

In the mariculture net cage, the lower end of the hollow long pipe can extend into the first cavity of the floating barrel, and the inner side of the slip ring is abutted against the outer wall of the hollow long pipe. Stretch into the cylinder mould with the cavity long tube in, tighten up the haulage rope, support the sliding ring inboard on the cavity long tube outer wall, when the sliding ring department that the cavity long tube breaks away from, the dictyosome can contract automatically, can prevent that the seedling of top from dropping in the breed space of below.

Compared with the prior art, the invention has the following advantages:

1. according to the invention, the ring body, the net body, the sliding ring arranged in the middle of the inner side of the net body and the traction rope are utilized, so that the production cost of the net cage is reduced.

2. According to the net cage, seedlings can be put in by using the hollow long pipe without lifting out of the water surface, aquatic products are harvested by using the floating bucket, and convenience in putting the seedlings in the net cage and harvesting the aquatic products is improved.

Drawings

Fig. 1 is a sectional view of the present mariculture net cage.

Fig. 2 is a sectional view taken at a-a of fig. 1.

FIG. 3 is a sectional view of aquatic product seedlings put into the culture space by the hollow long tube matched with the mariculture net cage.

Fig. 4 is a cross-sectional view of the marine product in the mariculture net cage after the aquatic product grows up in the culture space.

FIG. 5 is a cross-sectional view of the aquatic product after the float bowl in the mariculture net cage has been harvested and grown.

In the figure, 1, a ring body; 2. a net body; 3. an annular float; 4. a barrel body; 5. sinking; 6. a slip ring; 7. a hauling rope; 8. a culture space; 9. a floating barrel; 91. an opening; 92. blocking edges; 93. a partition plate; 94. a first cavity; 95. a second cavity; 96. a through hole; 10. a hollow long tube; 11. and (5) lifting the rope.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1 to 5, the mariculture cage in this embodiment includes a plurality of ring bodies 1 and net bodies 2, the plurality of net bodies 2 are arranged in parallel at intervals along a vertical direction, adjacent ring bodies 1 are connected through the net bodies 2, the ring body 1 at the uppermost end is connected with a ring float 3, the ring float 3 is located above the ring body 1 at the uppermost end, a barrel body 4 is arranged below the ring body 1 at the lowermost end, the barrel body 4 is connected with the ring body 1 at the lowermost end through the net bodies 2, a floating barrel 9 is arranged in a cavity of the barrel body 4, a sinker 5 is connected to the bottom of the barrel body 4, a plurality of sliding rings 6 distributed circumferentially are arranged in the middle of the inner side of the net body 2, a traction rope 7 penetrates through the sliding rings 6, the upper end of the traction rope 7 sequentially penetrates through the upper sliding rings 6 of the net body 2 from bottom to top and is fixed on the ring float 3 or the ring body 1 at, the adjacent net bodies 2 are tightened under the action of the traction ropes 7 to form a culture space 8.

Further, as shown in fig. 1, 3, 4, and 5, the upper end of the floating barrel 9 has an opening 91, the end of the upper end is provided with a blocking edge 92 inclining outwards, the blocking edge 92 is made of flexible material, the lower side of the blocking edge 92 is connected with the lateral edge of the upper end of the barrel 4, the outer diameter of the blocking edge 92 is smaller than the inner diameters of the ring 1 and the annular float 3, a transverse partition plate 93 is arranged in the floating barrel 9, the shape of the partition plate 93 is the same as the cross-sectional shape of the inner cavity of the floating barrel 9, the outer side surface of the partition plate 93 is fixedly connected with the inner wall of the floating barrel 9, the upper side of the partition plate 93 in the floating barrel 9 is provided with a first cavity 94, the lower side of the partition plate 93 in the floating barrel 9 is provided with a second cavity 95, the side wall of the floating barrel 9, which is located on the upper side of the partition plate 93, is provided with a plurality of through; the floating barrel 9 is connected with a lifting rope 11, and the upper end of the lifting rope 11 is fixed on the annular floater 3 or the uppermost ring body 1.

Further, as shown in fig. 1 to 4, the mariculture net cage is further provided with a hollow long tube 10 which can extend into the culture space 8 to throw in aquatic product seedlings; loosening the traction rope 7, loosening the net body 2 nearby by the slip ring 6, extending the hollow long pipe 10 into the net cage, positioning the lower end of the hollow long pipe 10 in the first cavity 94 of the floating barrel 9, then placing the seedling in the first cavity 94, abutting the inner side of the slip ring 6 against the outer wall of the outer side of the hollow long pipe 10, moving the hollow long pipe 10 upwards, automatically tightening the middle part of the net body 2 at the lowest end, preventing the floating barrel 9 from floating upwards, positioning the lower end of the hollow long pipe 10 in the culture space 8, placing the seedling into the culture space 8 from the cavity of the hollow long pipe 10, and then placing the seedling into each culture space 8 from bottom to top; when the seedlings grow up, the traction ropes 7 are loosened, the grown aquatic products fall into the floating barrel 9, the floating barrel 9 floats upwards to the annular floater 3 on the sea surface by utilizing buoyancy, or the lifting ropes 11 pull the floating barrel 9 to the sea surface, and the grown aquatic products are harvested.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. A mariculture net cage comprises a plurality of ring bodies (1) which are arranged in parallel at intervals along the vertical direction and net bodies (2) which are used for connecting the adjacent ring bodies (1); the device is characterized in that the ring body (1) at the uppermost end is connected with an annular floater (3) positioned above the ring body (1), a barrel body (4) is arranged below the ring body (1) at the lowermost end, the ring body (1) at the lowermost end is connected with the barrel body (4) through a net body (2), the bottom of the barrel body (4) is connected with a sinker (5), a plurality of slip rings (6) are circumferentially arranged at intervals on the inner side of the middle part of the net body (2), a traction rope (7) penetrates through the slip rings (6) on the net body (2) from bottom to top in sequence, the slip rings are fixed on the annular floater (3) or the ring body (1) at the uppermost end, the adjacent net body (2) is tightened under the action of the traction rope (7) to form a culture space (8), and a floating barrel (9) is arranged in the barrel body (4), the outer diameter of the section of the floating barrel (9) is smaller than the inner diameters of the ring body (1) and the annular floater (3); the net cage is also provided with a hollow long pipe (10) which can extend into the culture space (8) for putting in seedlings.

2. The mariculture netpen of claim 1, wherein the upper end of the pontoon (9) has an opening (91) and the upper end has an outwardly inclined ledge (92), the underside of the ledge (92) resting on an edge of the upper end of the tub (4), the outer diameter of the ledge (92) being smaller than the inner diameter of the ring (1) and the ring float (3).

3. The mariculture netpen of claim 2, wherein the blocking edge (92) is made of a flexible material.

4. The mariculture net cage according to claim 2 or 3, wherein a transverse partition plate (93) is arranged in the floating barrel (9), the side edge of the partition plate (93) is fixedly connected with the inner wall of the floating barrel (9), a first cavity (94) located on the upper side of the partition plate (93) and a second cavity (95) located on the lower side of the partition plate (93) are arranged in the floating barrel (9), a water pipe communicated with the second cavity (95) is inserted in the floating barrel (9), and the end of the water pipe is connected with a power piece for pumping water.

5. A mariculture netpen according to claim 4, wherein the side wall of the pontoon (9) at the upper side of the partition (93) is provided with a plurality of through holes (96) for water drainage.

6. A mariculture netpen according to claim 1, characterized in that a lifting rope (11) is connected to the pontoon (9), and the upper end of the lifting rope (11) is fixed to the annular float (3) or the uppermost ring body (1).

7. The mariculture netpen of claim 4, characterized in that the lower end of the long hollow tube (10) can extend into the first cavity (94) of the pontoon (9), and the inner side of the slip ring (6) abuts against the outer wall of the long hollow tube (10).