Underwater breeding box cage

Abstract

The utility model provides an underwater breeding box cage which comprises a main frame, a plurality of breeding stations and a plurality of corner protection cushion blocks, and the breeding stations are arranged on the main frame; each breeding station is provided with a plurality of breeding cage modules used for placing breeding objects; the corner protection cushion blocks are fixedly connected to the outer side of the main frame. The main frame is provided with a channel in a penetrating mode in the length direction and / or the width direction of the main frame. The multiple breeding stations are distributed on the two sides of the channel. The breeding box cage comprises a plurality of breeding stations, concentrated wild breeding of sea cucumbers in the sea is achieved, the breeding efficiency is improved, meanwhile, influences of fishing seasons can be avoided, and the breeding box cage can be taken back to the sea at any time.

Description

Technical Field

[0001] The present application relates to the technical field of aquaculture equipment, and in particular to an underwater aquaculture cage. Background Art

[0002] With the rapid development of world economic trade and the continuous development of marine resources, marine aquaculture has received more and more attention, especially sea cucumbers and other marine delicacies with high nutritional value and investment value are becoming more and more popular. However, how to quickly and efficiently carry out aquaculture in seawater has become an urgent problem that needs to be solved.

[0003] With the development of aquaculture technology, a new aquaculture method has become possible, which is to concentrate sea cucumbers and other marine treasures in aquaculture cages in seawater for aquaculture. Aquaculture cages are a frame-type steel structure that uses flat steel bars or profiles to divide the internal space, and small aquaculture cages are placed in layers in the divided space, artificially creating "houses" for sea cucumbers and other marine treasures. This new aquaculture method using aquaculture cages can achieve the purpose of centralized aquaculture, and has the characteristics of high aquaculture efficiency, wide adaptability, and strong stability, and can be widely used in marine aquaculture.

[0004] At present, in my country, the bottom seeding and multiplication breeding method used for wild sea cucumbers is to harvest sea cucumbers by transforming the seabed environment and placing sea cucumber seedlings in the sea area. The sea cucumbers are of excellent quality and need frogmen to dive into the seabed to recapture them, but the recapture rate is very low. The method of breeding sea cucumbers in breeding cages in seawater is a new breeding method. In order to adapt to the complex environment in the sea for a long time, the breeding cages use steel structures with relatively large sizes, which can achieve the purpose of centralized breeding.

[0005] The existing patent publication number is CN209201888U, which discloses a slow-flow, speed-increasing and oxygen-enhancing underwater aquaculture box, including a box body and a column; the column includes an upper column and a lower column that are mutually rotatably sleeved; the column is vertically fixed to the bottom of the water, and the upper end is ball-connected to the bottom of the box body through a receiving portion; the box body is streamlined as a whole, and its left and right ends are respectively a first flat part and a second flat part in the shape of a duckbill; the middle part bulges outward to form a convex part to form a breeding space inside; a vertical rudder blade is arranged outside the second flat part; a long strip-shaped water inlet is formed at the end of the first flat part; the vertical section of the water inlet is an hourglass shape with large openings on both sides and a narrowed diameter in the middle; a plurality of water outlet holes are opened on the second flat part; the rudder blade is a cross-shaped rudder blade, so that the water inlet always faces the direction of the water flow; an anti-escape net is arranged at the water inlet to prevent aquatic products from escaping. However, the aquaculture box only has one breeding area, and the breeding efficiency is not improved.

[0006] Therefore, the technical problem that urgently needs to be solved is: how to provide an underwater breeding cage, which includes multiple breeding stations, to achieve centralized wild breeding of sea cucumbers in the sea, improve breeding efficiency, and at the same time not be affected by the fishing season, and the breeding cage can be retrieved and put out to sea at any time. Utility Model Content

[0007] The purpose of the present application is to provide an underwater aquaculture cage, which includes multiple aquaculture stations, so as to realize concentrated wild aquaculture of sea cucumbers in the sea and improve aquaculture efficiency. At the same time, it is not affected by the fishing season and the aquaculture cage can be retrieved and sent out to sea at any time.

[0008] In order to achieve the above-mentioned purpose, the present application provides an underwater aquaculture cage, comprising: a main frame, a plurality of aquaculture stations and a plurality of corner protection pads, wherein the plurality of aquaculture stations are arranged on the main frame; each of the aquaculture stations is installed with a plurality of aquaculture cage blocks for placing aquaculture; the plurality of corner protection pads are fixedly connected to the outside of the main frame; the main frame is provided with a passage running through it along its length direction and / or width direction; the plurality of aquaculture stations are distributed on both sides of the passage.

[0009] As described above, in the underwater breeding cage, the main frame is a rectangular structure formed by welding a plurality of square steels and angle steels.

[0010] As described above, the underwater breeding cage, wherein the corner protection pad comprises an elastomer, a connecting stud and a nut gasket; the elastomer is sleeved on the stud; one end of the stud is fixedly connected to the main frame, and the other end is fixedly connected to the nut gasket.

[0011] As described above, in the underwater breeding cage, the breeding station is a frame structure formed by fixed connection of angle steel and flat iron; the frame structure has space inside for installing the breeding cage assembly.

[0012] As described above, in the underwater breeding cage, the angle steels are fixedly connected with each other or with the flat iron by bolts and nuts; the angle steels are welded with each other or with the flat iron.

[0013] As described above, in the underwater breeding cage, a lifting fixture space is reserved on the main frame; the lifting fixture space includes a first lifting fixture space and a second lifting fixture space; the first lifting fixture space and the second lifting fixture space are spaced apart and arranged at the top end of the main frame.

[0014] As described above, in the underwater breeding cage, the breeding cage blocks installed in the plurality of breeding stations are symmetrically arranged on both sides of the passage.

[0015] As described above, in the underwater breeding cage, the space in the breeding station is divided into multiple layers of space; the multiple layers of space are distributed up and down; and the breeding cage blocks are respectively arranged in each layer of space.

[0016] As described above, the underwater breeding cage, wherein the breeding cage assembly block is a rectangular or cube structure.

[0017] The underwater breeding cage as described above, wherein the passage is open at both ends and at the top.

[0018] The beneficial effects achieved by this application are as follows:

[0019] (1) The breeding cage blocks in the breeding cage of the present application are arranged symmetrically, and the load is evenly distributed, which is beneficial to the stability of the breeding cage during hoisting and installation.

[0020] (2) The present application uses nuts and washers to fix the polyvinylidene fluoride elastomer on the outer side of the main frame, utilizing the good low friction performance of the polyvinylidene fluoride elastomer to reduce the friction of the breeding cage during the lifting process and achieve good shock absorption and noise reduction effects.

[0021] (3) A passage is left in the middle of the breeding cage of the present application to facilitate the permeability or circulation of seawater, thereby ensuring the dissolved oxygen conditions for the survival of sea cucumbers and facilitating operation and maintenance by personnel.

[0022] (4) The present application reserves a space for lifting fixtures on the main frame and uses angle steel to strengthen the structure, so that the aquaculture cages can be installed and retrieved in the sea.

[0023] (5) The angle steel of the breeding cage of the present application is installed with bolts and nuts, which facilitates the installation of the breeding cage assembly and improves the convenience of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For those skilled in the art, other drawings can also be obtained based on these drawings.

[0025] Figure 1 This is a front view of an underwater breeding cage according to an embodiment of the present application.

[0026] Figure 2 This is a top view of an underwater breeding cage according to an embodiment of the present application.

[0027] Figure 3 This is a right view of an underwater breeding cage according to an embodiment of the present application.

[0028] Figure 4This is a front view of the main frame of an embodiment of the present application.

[0029] Figure 5 This is a top view of the main frame of an embodiment of the present application.

[0030] Figure 6 This is a right view of the main frame of an embodiment of the present application.

[0031] Figure 7 This is a front view of the corner protection pad according to an embodiment of the present application.

[0032] Figure 8 This is a cross-sectional view of a corner protection pad according to an embodiment of the present application.

[0033] Fig. 9 This is a top view of the corner protection pad according to an embodiment of the present application.

[0034] Fig.10 This is a three-dimensional diagram of breeding station No. 1 of an embodiment of the present application.

[0035] Fig.11 for Fig.10 The C1-C1 direction view.

[0036] Fig.12 for Fig.11 Schematic diagram of the cross section of C11-C11.

[0037] Fig.13 for Fig.11 Schematic diagram of the cross section of C12-C12.

[0038] Fig.14 for Fig.11 Schematic diagram of the cross section of C13-C13.

[0039] Fig.15 for Fig.12 Schematic diagram of the cross section of C14-C14.

[0040] Fig.16 This is a three-dimensional diagram of the No. 2 breeding station of the embodiment of the present application.

[0041] Fig.17 for Fig.16 The C2-C2 direction view.

[0042] Fig.18 for Fig.17 Schematic diagram of the cross section of C21-C21.

[0043] Fig.19 for Fig.17 Schematic diagram of the cross section of C22-C22.

[0044] Fig. 20 for Fig.17Schematic diagram of the cross section of C23-C23.

[0045] Fig.21 for Fig.18 Schematic diagram of the cross section of C24-C24.

[0046] Fig. 22 This is a three-dimensional diagram of breeding station No. 3 of an embodiment of the present application.

[0047] Fig.23 for Fig. 22 The C3-C3 direction view.

[0048] Fig.24 for Fig.23 Schematic diagram of the cross section of C31-C31.

[0049] Fig.25 for Fig.23 Schematic diagram of the cross section of C32-C32.

[0050] Fig.26 for Fig.23 Schematic diagram of the cross section of C33-C33.

[0051] Fig. 27 for Fig.24 Schematic diagram of the cross section of C34-C34.

[0052] Figure markings: 1-main frame, 2-corner pad, 3-breeding cage assembly, 4-breeding station No. 1, 5-breeding station No. 2, 6-breeding station No. 3, 7-breeding station No. 4, 8-breeding station No. 5, 9-breeding station No. 6, 10-breeding station No. 7, 11-breeding station No. 8, 12-breeding station No. 9, 13-breeding station No. 10, 14-breeding station No. 11, 15-breeding station No. 12, 16-first square steel, 17-second square steel, 18-angle steel, 19-polyvinylidene fluoride elastomer, 20-connecting stud; 21-nut gasket, 101-first lifting fixture space, 102-second lifting fixture space, 103-channel. DETAILED DESCRIPTION

[0053] The following is a clear and complete description of the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0054] like Figure 1-27As shown, the present application provides an underwater aquaculture cage, comprising: a main frame 1, a plurality of aquaculture stations and a plurality of corner pads 2, wherein the plurality of aquaculture stations are arranged on the main frame 1; a plurality of aquaculture cage blocks 3 for placing aquaculture are installed at each aquaculture station; a plurality of corner pads 2 are fixedly connected to the outside of the main frame 1; the main frame 1 is provided with a passage 103 along its length direction and / or width direction; a plurality of aquaculture stations are distributed on both sides of the passage 103, preferably, a passage is left in the middle of the aquaculture cage, and seawater circulates in the passage to facilitate the permeability or circulation of seawater and ensure the dissolved oxygen conditions for the life of sea cucumbers, and at the same time, when the aquaculture cage needs maintenance on the ground, the operator can enter the passage to facilitate the operator to operate and maintain the aquaculture cage.

[0055] As a preferred embodiment of the present utility model, the corner protection pads 2 include 38 pieces. The number of the corner protection pads 2 is not limited herein. 38 corner protection pads 2 are only a preferred number. Those skilled in the art can freely set the number and position of the corner protection pads 2 as needed.

[0056] like Figure 3 As shown, the corner protection pads 2 can be arranged at the side and bottom of the main frame 1. Those skilled in the art can freely arrange the positions of the corner protection pads 2 as required.

[0057] like Figure 2 As shown, the plurality of breeding stations include: No. 1 breeding station 4, No. 2 breeding station 5, No. 3 breeding station 6, No. 4 breeding station 7, No. 5 breeding station 8, No. 6 breeding station 9, No. 7 breeding station 10, No. 8 breeding station 11, No. 9 breeding station 12, No. 10 breeding station 13, No. 11 breeding station 14 and No. 12 breeding station 15. Each breeding station can be equipped with a plurality of breeding cage blocks 3. The number of breeding stations is not limited here, and those skilled in the art can freely set the number of breeding stations as needed.

[0058] like Figure 2 As shown, with the center of the main frame 1 as the center of the circle, an X-axis and Y-axis coordinate system is established, the X-axis is along the length direction of the main frame 1, and the Y-axis is along the width direction of the main frame 1. Among them, the No. 1 breeding station 4 is symmetrical with the No. 7 breeding station 10 along the X-axis; the No. 2 breeding station 5 is symmetrical with the No. 8 breeding station 11 along the X-axis; the No. 3 breeding station 6 is symmetrical with the No. 9 breeding station 12 along the X-axis; the No. 4 breeding station 7 is symmetrical with the No. 10 breeding station 13 along the X-axis; the No. 5 breeding station 8 is symmetrical with the No. 11 breeding station 14 along the X-axis; the No. 6 breeding station 9 is symmetrical with the No. 12 breeding station 15 along the X-axis; the No. 1 breeding station 4 is symmetrical with the No. 6 breeding station 9 along the Y-axis; the No. 2 breeding station 5 is symmetrical with the No. 5 breeding station 8 along the Y-axis; the No. 3 breeding station 6 is symmetrical with the No. 4 breeding station 7 along the Y-axis.

[0059] As a specific embodiment of the utility model, the main frame 1 is a rectangular parallelepiped structure welded by a plurality of square steels and angle steels. The main frame 1 is used as the overall frame of the breeding cage to carry or support the breeding stations inside.

[0060] like Figure 4-6 As shown, the main frame 1 is welded by a first square steel 16 of 70mmx70mmx5mm, a second square steel 17 of 50mmx50mmx5mm and an angle steel 18 of 75mmx75mmx5mm. The main frame 1 can meet the needs of long-term use in seawater. The angle steel 18 is fixed at the first hoisting fixture space 101 and the second hoisting fixture space 102. The angle steel 18 is a reinforcing structure used by the crane to hoist the main frame 1. When hoisting the main frame 1, the crane hooks the angle steel 18 to ensure that the main structure of the main frame 1 is not damaged.

[0061] As a specific embodiment of the utility model, the angle steel 18 includes an angle steel fixed at the first lifting fixture space 101 and an angle steel fixed at the second lifting fixture space 102. The angle steel fixed at the first lifting fixture space 101 and the angle steel fixed at the second lifting fixture space 102 are symmetrically arranged. Preferably, the symmetrical arrangement of the angle steel fixed at the first lifting fixture space 101 and the angle steel fixed at the second lifting fixture space 102 is conducive to the crane lifting of the breeding cage more stable and reliable.

[0062] like Figure 5 As shown, the angle steel 18 is fixedly connected to the edge frame of the main frame 1, and it is convenient and reliable to install the angle steel 18 on the edge frame of the main frame 1.

[0063] like Figure 7-9 As shown, the corner protection pad 2 includes an elastic body, a connecting stud 20 and a nut washer 21; the elastic body is sleeved on the stud; one end of the stud is fixedly connected to the main frame 1, and the other end is fixedly connected to the nut washer. Preferably, the elastomer is a polyvinylidene fluoride elastomer. That is, the elastomer is an elastic structural member made of an existing polyvinylidene fluoride material.

[0064] like Figure 7-9 As shown, each corner pad 2 is composed of a polyvinylidene fluoride elastomer 19, two connecting studs 20 and two sets of nut washers 21. The connecting studs 20 are welded to the main frame 1, and the polyvinylidene fluoride elastomer 19 is fixed to the outside of the main frame 1 by the nut washers 21. The good low friction performance of the polyvinylidene fluoride elastomer 19 is utilized to reduce the friction of the breeding cage during the hoisting process, and achieve a good effect of shock absorption and noise reduction.

[0065] As a preferred embodiment of the utility model, the breeding station is a frame structure formed by fixing angle steel and flat iron; the frame structure has a space for installing the breeding cage assembly 3. Here, the frame structure formed by fixing angle steel and flat iron is only a preferred technical solution, and the breeding station can also be fixedly connected to the frame with other materials. Here, the constituent materials of the breeding station are not limited.

[0066] As a preferred embodiment of the utility model, the angle steels are fixedly connected to each other or to the flat iron by bolts and nuts; the angle steels are welded to each other or to the flat iron. Here, the connection method between the angle steels and the angle steels or between the angle steels and the flat iron is not limited.

[0067] like Figure 1 As shown, a lifting fixture space is reserved on the main frame 1; the lifting fixture space includes a first lifting fixture space 101 and a second lifting fixture space 102; the first lifting fixture space 101 and the second lifting fixture space 102 are spaced apart and arranged at the top of the main frame 1. The first lifting fixture space 101 and the second lifting fixture space 102 facilitate the extension of the crane hook so as to facilitate the hook to hook the angle steel 18 on the main frame 1.

[0068] As a preferred embodiment of the utility model, the breeding cage blocks 3 installed in multiple breeding stations are symmetrically arranged on both sides of the channel 103. The channel 103 has openings at both ends and a top opening. Specifically, the top opening of the channel 103 is a through opening located at the top of the channel 103 along the length direction of the channel 103, without any obstructions, which is convenient for people to walk in the channel 103. The openings at both ends of the channel 103 can allow seawater to circulate. When the breeding cage is hoisted to the ground, the openings at both ends and the top opening of the channel 103 can allow operators to walk on the ground into the channel 103 to maintain the breeding cage and conveniently take out the cultured objects in the breeding cage. The breeding cage blocks in the breeding cage are arranged symmetrically, and the load is evenly distributed, which is beneficial to the stability of the breeding cage during hoisting and installation.

[0069] As a preferred embodiment of the utility model, the channels 103 include two channels, both of which pass through the main frame 1, wherein one channel 103 is arranged along the length direction of the main frame 1, and the other channel 104 is arranged along the width direction of the main frame 1. The number of channels 103 is not limited here, and technicians in this field can freely set them as needed.

[0070] As a preferred embodiment of the utility model, the space in the breeding station is divided into multiple layers of space; the multiple layers of space are distributed up and down; and each layer of space is respectively provided with a breeding cage block 3. The breeding cage block 3 is a rectangular parallelepiped or cube structure.

[0071] As a specific embodiment of the utility model, the breeding cage block 3 is a rectangular or cubic frame structure formed by fixed connection of steel materials, and the surrounding of the breeding cage block 3 can be covered with a mesh structure such as an iron mesh or a stainless steel mesh, so that when sea cucumbers are cultured inside the breeding cage block 3, seawater can enter the breeding cage block 3, and the sea cucumbers will not leak out or crawl out of the breeding cage block 3. Here, the specific structure of the breeding cage block 3 is not limited, as long as the sea cucumbers can be accommodated, and the seawater can enter the breeding cage block 3, and the sea cucumbers will not leak out or crawl out of the breeding cage block 3.

[0072] The breeding cage in the present application is a frame-type steel structure, which uses flat steel bars or profiles to divide the internal space, and small breeding cage blocks are placed in layers in the divided space to artificially create breeding spaces for individual sea cucumbers, which can achieve the purpose of centralized breeding. It has the characteristics of high breeding efficiency, wide adaptability, strong stability, etc., and can be widely used in marine aquaculture.

[0073] As a specific embodiment of the utility model, the first breeding station 4 is welded by angle steel and flat iron. Figure 10-15 As shown, the structure of the No. 1 breeding station 4 is shown. Figure 11-15 The symbol in is the part number (i.e., part number) of the components of the No. 1 breeding station 4, where the names and specifications of each part number are shown in Table 1. Among them, the angle steel with part number 4-8 is connected with the angle steel with part number 4-9 and the flat iron with part number 4-15 by bolts and nuts, and the bolts and nuts are used for installation, which facilitates the installation of the breeding cage assembly 3 and improves the convenience of operation. It is convenient to install the breeding cage assembly 3 in the No. 1 breeding station 4. The material list of breeding stations No. 1, 6, 7, and 12 is shown in Table 1.

[0074] Table 1:

[0075]

[0076] like Figure 16-21 As shown, the structure of the No. 2 breeding station 5 is shown. The No. 2 breeding station 5 is welded by angle steel and flat iron, wherein: Figure 17-21 The symbol in is the part number (i.e., part number) of the components of the No. 2 breeding station 5, wherein the names and specifications corresponding to each part number are shown in Table 2. Among them, the angle steel with part number 5-4 is connected with the angle steel with part number 5-3 and the angle steel with part number 5-8 by bolts and nuts, and the angle steel with part number 5-5 is connected with the flat iron with part number 5-7 by bolts and nuts. The bolt and nut installation facilitates the installation of the breeding cage assembly 3 and improves the convenience of operation. Thereby, it is convenient to install the breeding cage assembly 3 in the No. 2 breeding station 5. The material list of the No. 2, 5, 8, and 11 breeding stations is shown in Table 2.

[0077] Table 2:

[0078]

[0079] like Figure 22-27 As shown, the structure of the No. 3 breeding station 6 is shown. The No. 3 breeding station 6 is welded by angle steel and flat iron, wherein: Figure 23-27 The symbol in is the part number (i.e., part number) of the components of breeding station No. 3 6, where the names and specifications of each part number are shown in Table 3. Among them, the angle steel with part number 6-8 is connected with the angle steel with part number 6-9 and the flat iron with part number 6-15 by bolts and nuts, and the bolts and nuts are used for installation, which facilitates the installation of breeding cage assembly 3 and improves the convenience of operation. It is convenient to install breeding cage assembly 3 at breeding station No. 3 6. The material list of breeding stations No. 3, 4, 9, and 10 is shown in Table 3.

[0080] Table 3:

[0081]

[0082]

[0083] The beneficial effects achieved by this application are as follows:

[0084] (1) The breeding cage blocks in the breeding cage of the present application are arranged symmetrically, and the load is evenly distributed, which is beneficial to the stability of the breeding cage during hoisting and installation.

[0085] (2) The present application uses nuts and washers to fix the polyvinylidene fluoride elastomer on the outer side of the main frame, utilizing the good low friction performance of the polyvinylidene fluoride elastomer to reduce the friction of the breeding cage during the lifting process and achieve good shock absorption and noise reduction effects.

[0086] (3) A passage is left in the middle of the breeding cage of the present application to facilitate the permeability or circulation of seawater, thereby ensuring the dissolved oxygen conditions for the survival of sea cucumbers and facilitating operation and maintenance by personnel.

[0087] (4) The present application reserves a space for lifting fixtures on the main frame and uses angle steel to strengthen the structure, so that the aquaculture cages can be installed and retrieved in the sea.

[0088] (5) The angle steel of the breeding cage of the present application is installed with bolts and nuts, which facilitates the installation of the breeding cage assembly and improves the convenience of operation.

[0089] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "plurality" means two or more, unless otherwise clearly and specifically defined.

[0090] In the description of the present application, the word "for example" is used to mean "used as an example, illustration or explanation". Any embodiment described as "for example" in the present application is not necessarily to be construed as being more preferred or advantageous than other embodiments. In order to enable any technician in the field to implement and use the utility model, the following description is given. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art can recognize that the utility model can be implemented without using these specific details. In other examples, well-known structures and processes will not be elaborated in detail to avoid unnecessary details that make the description of the utility model obscure. Therefore, the utility model is not intended to be limited to the embodiments shown, but is consistent with the widest range of principles and features disclosed in the present application.

[0091] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. An underwater breeding cage, characterized in that: include: A main frame, a plurality of breeding stations and a plurality of corner pads, wherein the plurality of breeding stations are arranged on the main frame; Each of the breeding stations is equipped with a plurality of breeding cage blocks for placing the breeding objects; A plurality of corner protection pads are fixedly connected to the outer side of the main frame; The main frame is provided with a passage extending through the main frame along its length direction and / or width direction; A plurality of breeding stations are distributed on both sides of the passage.

2. The underwater aquaculture cage according to claim 1, characterized in that: The main frame is a rectangular parallelepiped structure formed by welding a plurality of square steels and angle steels.

3. The underwater aquaculture cage according to claim 1, characterized in that: The corner protection pad includes an elastic body, a connecting stud and a nut washer; The elastic body is sleeved on the stud; One end of the stud is fixedly connected to the main frame, and the other end is fixedly connected to the nut washer.

4. The underwater aquaculture cage according to claim 1, characterized in that: The breeding station is a frame structure formed by fixed connection of angle steel and flat iron; The frame structure has space inside for installing the breeding cage assembly.

5. The underwater aquaculture cage according to claim 4, characterized in that: The angle steels are fixedly connected to each other or to the flat iron by bolts and nuts; the angle steels are welded to each other or to the flat iron.

6. The underwater aquaculture cage according to claim 1, characterized in that: A lifting fixture space is reserved on the main frame; the lifting fixture space includes a first lifting fixture space and a second lifting fixture space; the first lifting fixture space and the second lifting fixture space are spaced apart and arranged at the top end of the main frame.

7. The underwater aquaculture cage according to any one of claims 1 to 5, characterized in that: The breeding cage blocks installed in the plurality of breeding stations are symmetrically arranged on both sides of the passage.

8. The underwater aquaculture cage according to claim 7, characterized in that: The space within the breeding station is divided into multiple layers of space; Multiple layers of space are distributed up and down; The breeding cage blocks are respectively arranged in each layer of space.

9. The underwater aquaculture cage according to claim 7, characterized in that: The breeding cage assembly block is a rectangular parallelepiped or cube structure.

10. The underwater aquaculture cage according to claim 7, characterized in that: The channel is open at both ends and at the top.

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