A shellfish bottom culture cage

Abstract

The utility model discloses a kind of shellfish bottom rearing cages, belong to the technical field of aquaculture equipment, including cage, cage is the structure of side opening type, several through holes are set on cage, the opening of cage side is equipped with door plate, several through holes are set on door plate, the upper of cage is equipped with float, the lower of cage is equipped with fixing device. By suspending bottom rearing cage in seabed, provide excellent growth environment for filter-feeding economic shellfish, prevent the escape of cultured organisms, while it can prevent enemy organisms from invading, can effectively improve survival rate and recapture rate. The bottom rearing cage of the application is suitable for mechanized operation, can carry out scallop, oyster and other filter-feeding economic shellfish and sea cucumber and other bottom-dwelling economic animals in nearshore and deep sea area seabed Scale culture, greatly expand shellfish culture space, help to promote China's mariculture industrial structure adjustment, improve marine space and resource utilization rate.

Description

Technical Field

[0001] This utility model patent relates to the technical field of aquaculture equipment, and in particular to a shellfish bottom culture cage. Background Technology

[0002] In recent years, global fishing production has approached its limits, and aquaculture has made a significant contribution to ensuring the supply of high-quality protein for humankind, promoting the prosperity of the fishing industry, and enriching the lives of fishermen. Filter-feeding shellfish such as scallops and oysters are rich in nutrients, containing various essential amino acids, fatty acids, vitamins, and minerals, and have high economic value, making them important farmed shellfish in my country.

[0003] Currently, marine shellfish farming mainly employs two methods: shallow-sea raft culture and extensive bottom-seeding culture. Raft culture, with its advantages of rapid growth of farmed species, high yield, low cost, and convenient management, has gradually become the primary production method for marine shellfish farming and has been widely adopted. However, raft culture requires a large labor force, and the numerous rafts used for cultivation negatively impact the marine landscape. Furthermore, in recent years, due to changes in the marine environment and marine engineering projects, the area suitable for raft culture has been shrinking. On the other hand, shellfish are naturally occurring benthic organisms that feed on microalgae and organic debris in seawater, requiring no artificial feeding. This makes them particularly suitable for bottom-seeding culture utilizing seabed resources. Shellfish cultured by bottom seeding grow faster, are larger, have less attached organisms, and are of higher quality than those cultured by raft culture.

[0004] my country has a coastline of 32,000 kilometers, with approximately 16 million hectares of shallow sea areas with a depth of less than 20 meters. Currently, shellfish farming in my country is mainly done using raft farming, covering an area of ​​about 550,000 hectares. my country's nearshore seabed area with a depth of more than 30 meters is about 9.7 million hectares. Apart from some areas used for fishery resource enhancement and protection, and deep-sea cages, most of the seabed resources and space are not effectively utilized, with a utilization rate of less than 1%. Much of this idle seabed is suitable for shellfish bottom farming, therefore, the prospects for developing a shellfish bottom farming industry in my country are very broad. Existing bottom-seeding farming models include scallop bottom-seeding farming (like the Dalian Zhangzidao model) and common tidal flat shellfish bottom-seeding farming. The main problems with this model are high predation rates and low recapture rates for bottom-seeded shellfish without cage protection, high harvesting costs, and severe damage to the seabed during harvesting, making it unsustainable. From a technical perspective, only through facility-based and mechanized farming can the large-scale promotion of shellfish bottom-seeding farming be achieved.

[0005] In response to the above issues, the applicant found that there are currently no facilities and equipment suitable for large-scale bottom seeding and harvesting of shellfish, nor are there filter-feeding shellfish bottom culture cages suitable for mechanized operation on the market. Therefore, the shellfish industry urgently needs shellfish bottom culture cages suitable for mechanized operation. Utility Model Content

[0006] This application aims to address the development bottlenecks of existing shellfish raft and bottom seeding aquaculture technologies and models, and to provide a filter-feeding economic shellfish bottom culture cage suitable for mechanized operation. This cage enables large-scale aquaculture of filter-feeding economic shellfish such as scallops and oysters, as well as benthic economic animals such as sea cucumbers, in nearshore and deep-sea areas. This will greatly expand the space for shellfish aquaculture and help promote the structural adjustment of my country's marine aquaculture industry and improve the utilization rate of marine space and resources.

[0007] The technical solution of this utility model to solve the above problems is as follows:

[0008] A shellfish bottom culture cage includes a cage body with a side-opening structure and several through holes. A door panel is provided at the opening on the side of the cage body, and several through holes are provided on the door panel. A float is provided above the cage body, and a fixing device is provided below the cage body.

[0009] Furthermore, the cage body is provided with several partitions, which are placed inside the cage body and snapped into place. Several through holes are provided on the partitions.

[0010] Furthermore, the float is provided with a loading and unloading groove.

[0011] Furthermore, a connecting rope is threaded through the fixing device.

[0012] Furthermore, the door panel is equipped with a hinge, and the side of the hinge away from the door panel is connected to the cage body, thereby connecting the door panel and the cage body.

[0013] Furthermore, a buckle is provided on the side of the door panel away from the hinge, and the side of the buckle away from the door panel engages with the cage body, thereby locking the door panel and the cage body together.

[0014] In summary, compared with the prior art, the beneficial effects of the above technical solution are:

[0015] 1. This application can fundamentally provide a suitable growth environment for farmed shellfish, prevent the invasion of predatory organisms, prevent seedlings from being lost with ocean currents, and effectively improve the survival rate and recapture rate;

[0016] 2. This system is suitable for mechanized operation, which can effectively reduce the demand for manual labor and make it possible to carry out large-scale facility-based cultivation.

[0017] 3. This system is relatively inexpensive and has a high return on investment compared to other current mainstream farming methods;

[0018] 4. This application can effectively utilize the bottom-dwelling resources and environment in my country's sea areas to carry out shellfish farming, greatly expand the farming space for marine economic shellfish, and increase the output and value of shellfish farming; on the other hand, it will significantly improve the mechanization level of my country's fishery production, improve the working efficiency of shellfish farming, and is expected to rapidly promote the development of my country's shellfish farming industry. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0020] Figure 2 This is a front view of an embodiment of the present utility model;

[0021] Figure 3 This is a schematic diagram of the door panel opening structure in an embodiment of this utility model;

[0022] Figure 4 This is a front view of the door panel opening in an embodiment of this utility model;

[0023] Figure 5 This is a side view of the door panel opening in an embodiment of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Cage; 2. Float; 21. Loading / unloading trough; 3. Door panel; 31. Hinge; 32. Buckle; 4. Fixing device; 5. Partition. Detailed Implementation

[0026] The principles and features of this utility model are described below with reference to all the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0027] This utility model discloses a shellfish bottom culture cage.

[0028] Reference Figures 1 to 5 As shown, a shellfish bottom culture cage includes a cage body 1, a float 2, and a fixing device 4. The float is located above the cage body 1, and the fixing device 4 is located below the cage body 1.

[0029] The cage 1 is 0.8 meters long, 0.4 meters wide, and 0.3 meters high. It is made of high-strength hard plastic board with circular or hexagonal holes with a diameter of 1.5 centimeters. It is divided into three layers, with openings on both sides and door panels 3.

[0030] The door panel 3 is provided with a hinge 31. The side of the hinge 31 away from the door panel 3 is connected to the cage body 1, and the door panel 3 and the cage body 1 are connected by the hinge 31. The side of the door panel 3 away from the hinge 31 is provided with a buckle 32. The side of the buckle 32 away from the door panel 3 is engaged with the cage body 1, and the door panel 3 and the cage body 1 are locked by the buckle 32.

[0031] The cage 1 has two partitions 55 inside, each 0.8 meters long and 0.4 meters wide, covered with regular hexagonal holes with a side length of 1.5 centimeters or circular holes with a diameter of 1.5 centimeters, which are inserted into the slots inside the cage 1.

[0032] A float 2 is provided above the cage 1. The float 2 is composed of a hard plastic shell and internal foam filling material. A loading and unloading groove 21 is provided on the float to facilitate stacking during transportation.

[0033] The cage body 1 is equipped with a fixing device 4 at the bottom, with a hollow tube in the middle, which has a diameter of 30 mm, and is used to connect multiple bottom-raising cages into a bottom-raising cage string by connecting ropes.

[0034] Reference Figures 1 to 5 As shown, a shellfish bottom culture cage includes a cage body 1 with a side-opening structure. The cage body 1 is covered with circular or hexagonal holes with a diameter of 1.5 cm. A door panel 3 is provided at the side opening of the cage body 1, and the door panel 3 is covered with circular or hexagonal holes with a diameter of 1.5 cm. Several partitions 5 are provided inside the cage body 1. A float 2 is provided above the cage body 1, and a fixing device 4 is provided below the cage body 1.

[0035] In this embodiment, the cage 1 is made of high-strength hard plastic and is covered with regular hexagonal holes with a side length of 1.5 cm or circular holes with a diameter of 1.5 cm. There are two partitions 5 in the middle of the cage 1. The partitions 5 are covered with circular or hexagonal holes with a diameter of 1.5 cm. The partitions 5 are inserted into the slots in the cage 1, dividing the cage 1 into three layers: upper, middle and lower. Each layer is 0.8 meters long, 0.4 meters wide and 0.1 meters high. The float 2 is located on the upper surface of the cage 1, with a length of 0.6 meters, a width of 0.3 meters and a height of 0.1 meters. The cage 1 has openings on both sides and is provided with door panels 3. One side of the door panel 3 is connected to the cage 1 with a hinge 31, and the other side is fastened to the cage 1 with a buckle 32. A fixing device 4 is provided at the bottom of the cage 1, which is a hollow tube with a diameter of 30 mm, used to connect multiple bottom-raising cages in series to form a bottom-raising cage string by connecting ropes.

[0036] The float 2 consists of a hard plastic shell and internal foam filling. It is located on the upper surface of the cage 1, with a length of 0.6 meters, a width of 0.3 meters, and a height of 0.1 meters. It can provide sufficient buoyancy for the cage 1 and the cultured animals. The float 2 is provided with a loading and unloading slot 21, which can accommodate the fixing device 4. It can be adapted to mechanized operating equipment to realize automated transportation operations.

[0037] The door panel 3 is equipped with a hinge 31. The side of the hinge 31 away from the door panel 3 is connected to the cage body 1, thus connecting the door panel 3 and the cage body 1. A latch 32 is provided on the side of the door panel 3 away from the hinge 31. The latch 32 engages with the cage body 1 on the side away from the door panel 3, thus locking the door panel 3 and the cage body 1. The hinge 31 is a stainless steel blade with a shaft, used to fix the cage body 1 and the door panel 3. The latch 32 is a plastic protrusion hook-shaped object located on the door panel 3. When latched, it tightly engages with the latch 32 socket on the cage body 1 to keep the cage body 1 closed. When disengaged from the latch 32 socket, the cage body 1 can be opened.

[0038] The fixing device 4 consists of two rectangular plastic blocks with a circular hollow tube in the middle, which is used to connect the rope and fix the bottom raising cage to the connecting rope.

[0039] The partition 5 is placed inside the cage body 1 and snaps into the cage body 1. The partition 5 is covered with circular or hexagonal holes with a diameter of 1.5 cm. The partition 5 is made of high-strength hard plastic and is covered with regular hexagonal holes with a side length of 1.5 cm. It is inserted into the slots inside the cage body 1.

[0040] In this embodiment, two door panels 3 are provided, located on two sides of the cage body 1 respectively. They are covered with regular hexagonal holes with a side length of 1.5 cm or circular holes with a diameter of 1.5 cm, forming a porous structure. One side is connected to the cage body 1 via a hinge 31, and the other side is connected to the upper part of the cage body 1 via a buckle 32 for opening and closing. The hinge 31 is a stainless steel blade with a shaft, used to fix the cage body 1 and the door panel 3. The buckle 32 is a plastic protrusion hook-shaped object located on the door panel 3. When fastened, it tightly engages with the buckle 32 socket of the cage body 1 to keep the cage body 1 closed; when separated from the buckle 32 socket, the cage body 1 can be opened.

[0041] The implementation principle of a shellfish bottom culture cage according to this utility model embodiment is as follows:

[0042] Reference Figures 1 to 5 As shown, a shellfish bottom culture cage includes a cage body 1, a float 2, a partition 5, a door panel 3, a hinge 31, a buckle 32, and a fixing device 4. The cage body 1 has three layers: upper, middle, and lower, and is made of a new type of plastic board with hexagonal holes with a side length of 1.5 cm or circular holes with a diameter of 1.5 cm. The float 2 is set on the top surface of the cage body 1, and a fixing device 4 is set on the bottom surface for passing through the connecting rope and fixing the cage body 1 to the connecting rope. One side of the cage body 1 is set as an openable door panel 3, which is connected to the cage body 1 by a hinge 31 on one side and controlled by a buckle 32 on the other side to open and close the culture cage door. The opening and closing of the buckle 32 must be controlled by a ship-borne harvester.

[0043] The bottom-culture cage of this application is used for the seabed aquaculture of filter-feeding economic shellfish. By suspending the cage 1 on the seabed, it provides an excellent sub-environment for the shellfish's growth, prevents escape of cultured organisms and attack by predators, and effectively improves survival and recapture rates. The bottom-culture cage of this application is suitable for mechanized operation and can be used for the efficient mechanized aquaculture of filter-feeding economic shellfish such as scallops and oysters, as well as benthic economic animals such as sea cucumbers, in nearshore and deep-sea areas. This expands the aquaculture space for shellfish and sea cucumbers, promotes the structural adjustment of my country's marine aquaculture industry, and improves the utilization rate of marine space and resources.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the principles and rules of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A shellfish bottom culture cage characterised in that: Includes a cage (1), which has a side-opening structure. The cage (1) has several through holes. A door panel (3) is provided at the opening on the side of the cage (1). The door panel (3) has several through holes. A float (2) is provided above the cage (1). A fixing device (4) is provided below the cage (1).

2. A cage according to claim 1, characterised in that: The cage (1) is provided with several partitions (5), which are placed inside the cage (1) and snapped into the cage (1). Several through holes are provided on the partitions (5).

3. A cage according to claim 1, wherein: The float (2) is provided with a loading and unloading groove (21).

4. A cage according to claim 1, wherein: A connecting rope is threaded through the fixing device (4).

5. A shell bottom cage according to claim 1 or 2, characterised in that: The door panel (3) is provided with a hinge (31), and the side of the hinge (31) away from the door panel (3) is connected to the cage body (1). The door panel (3) and the cage body (1) are connected by the hinge (31).

6. A shell bottom cage according to claim 1 or 2, characterized in that: The door panel (3) is provided with a buckle (32) on the side away from the hinge (31). The side of the buckle (32) away from the door panel (3) is engaged with the cage body (1) to lock the door panel (3) and the cage body (1).

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