Mariculture net cage oxygen supply equipment

By designing an oxygenation component that can rotate to the sea surface and a wave cleaning mechanism, the problems of obstructed net replacement and oxygen supply blockage have been solved, ensuring efficient oxygenation and cleanliness of marine aquaculture cages and protecting fish survival.

CN223929250UActive Publication Date: 2026-02-24RIZHAO WANZEFENG FISHERIES CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202520589079.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-31
Publication Date
2026-02-24
Estimated Expiration
2035-03-31

AI Technical Summary

Technical Problem

The existing oxygen supply equipment for marine aquaculture cages is located below sea level, which hinders the replacement of fishing nets and causes seaweed to attach and obstruct oxygen supply, thus affecting the survival of fish.

Method used

An oxygen supply device for marine aquaculture cages was designed. The oxygen exhaust component can be rotated to the surface of the seawater, using wave force to clean the net cover, prevent blockage, and supply oxygen in the seawater.

Benefits of technology

It enables unimpeded replacement of fishing nets, ensures good cleaning effect, guarantees oxygen supply efficiency, prevents blockage, and protects the living environment of fish.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223929250U_ABST
    Figure CN223929250U_ABST
Patent Text Reader

Abstract

The utility model discloses oxygen supply equipment for a mariculture net cage, which relates to the technical field of mariculture net cages and comprises an oxygen supply main body, a positioning seat is communicated and fixed at the bottom of the oxygen supply main body, an outer cylinder is fixedly sleeved on the outer wall of the positioning seat, and a cross beam component is sleeved on the outer wall of the outer cylinder. An oxygen discharging assembly is movably arranged at the bottom of the positioning seat; the oxygen supply main body comprises a positioning plate fixedly sleeved on the outer wall of the oxygen exhaust assembly, and the top end of the positioning plate is movably sleeved with two groups of movable plates on the outer wall of the positioning seat. The cross beam assembly and the oxygen discharging assemblies are matched with each other, so that the two oxygen discharging assemblies can rotate to the 90-degree position and are located above the seawater surface, manual replacement of a fishing net in a net cage cannot be affected, meanwhile, the net cover is cleaned through the force of sea waves, manual jacking is not needed for cleaning the net cover, and the blocking problem is solved; and the efficiency of supplying oxygen to seawater is ensured.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of marine aquaculture cage technology, specifically to an oxygen supply device for marine aquaculture cages. Background Technology

[0002] Deep-sea aquaculture cages mainly consist of a frame system, net cages, a fixing system, and supporting facilities. Utilizing the interaction of the fixed platform and the characteristics of the cage itself, the cage is lowered to a limited underwater depth. They are characterized by high strength, good flexibility, corrosion resistance, aging resistance, strong resistance to wind and waves, long service life, large effective aquaculture volume, high efficiency, low overall cost, low pollution, excellent water quality, low fish mortality rate, and good fish product quality. During aquaculture, oxygenation is required in the waters within the cages to ensure the fish products can thrive.

[0003] Chinese patent disclosure (CN 218635090 U) discloses an oxygen supply device that uses a solar panel to power an electric actuator and an oxygen supply device. The device is placed in the water using a floating plate. When the electric actuator moves the floating plate, it lengthens the floating plate, making it easier to move the floating plate to the edge of the aquaculture cage. This ensures that the oxygen supply device is in the center position. In conjunction with the delivery pipe and the air outlet pipe, the device supplies oxygen to the aquaculture cage, thereby expanding the oxygen supply area and improving the oxygen supply effect for fish.

[0004] However, the above-mentioned technical solutions have certain drawbacks. Over time, weeds in the seawater will attach to the outer wall and holes of the fishing net, causing obstruction of the flow of seawater inside and outside the net. In severe cases, this can lead to the death of fish. At this time, the fish farmers need to replace the fishing net inside the cage. However, the oxygen supply in the above-mentioned technical solutions is always below the seawater, which makes the replacement of the fishing net difficult. It may even be necessary to remove the net from the cage to complete the replacement. Therefore, an oxygen supply device for marine aquaculture cages is proposed. Utility Model Content

[0005] Based on this, the purpose of this utility model is to provide an oxygen supply device for marine aquaculture cages to solve the technical problems mentioned in the background.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an oxygen supply device for marine aquaculture cages, comprising an oxygen supply body, a positioning seat fixedly connected to the bottom of the oxygen supply body, an outer cylinder fixedly sleeved on the outer wall of the positioning seat, a crossbeam assembly sleeved on the outer wall of the outer cylinder, and an oxygen exhaust assembly movably provided at the bottom of the positioning seat;

[0007] The oxygen supply body includes a positioning plate that is fixedly sleeved on the outer wall of the oxygen exhaust component. The top of the positioning plate is movably sleeved on the outer wall of the positioning seat with two sets of movable plates.

[0008] The oxygen degassing assembly includes two sets of main air frames rotatably mounted to the bottom of the positioning seat. The outer walls of the two sets of main air frames are provided with cables that pass through the positioning plates and are fixed to the two positioning plates. On one side of the cable, the outer wall of each main air frame has a telescopic tube connected to the positioning seat. Multiple sets of secondary pipes are connected to the outer wall of each main air frame. Several sets of exhaust pipes are connected to the outer wall of each set of secondary pipes. A mesh cover is fixed to the top of each set of exhaust pipes. A baffle is movably mounted above the mesh cover on the outer wall of the main air frame. Multiple U-shaped seats are fixed to the bottom of the baffle. A cross-shaped piece is rotatably mounted at the center of the top of the mesh cover. The top of the cross-shaped piece extends into a force-bearing piece within the U-shaped seat. Multiple scraper blocks extending into the mesh cover are fixed to the bottom of the cross-shaped piece.

[0009] As a preferred technical solution of the oxygen supply equipment for marine aquaculture cages according to this utility model, the top of the oxygen discharge component is rotatably set with a torsion spring and the bottom of the positioning seat.

[0010] As a preferred technical solution of the marine aquaculture cage oxygen supply equipment of this utility model, the ends of the two sets of moving plates are fixed with positioning rings, and the two sets of positioning rings are sleeved on the outer wall of the outer cylinder by bearings in an alternating manner.

[0011] As a preferred technical solution of the oxygen supply equipment for marine aquaculture cages according to this utility model, a channel is provided at the contact position between the positioning plate and the cable, and the upper and lower edges of the channel are provided with arc-shaped chamfers.

[0012] As a preferred technical solution of the marine aquaculture cage oxygen supply equipment of this utility model, a handle is fixed at the top of the moving plate and on the side away from the oxygen supply body, and an arc-shaped seat is fixed at the bottom of the positioning plate below the handle.

[0013] As a preferred technical solution of the marine aquaculture cage oxygen supply equipment of this utility model, one end of the baffle is slidably set with the outer wall of the main air frame by a dovetail block, and the outer wall of the cable is provided with a dovetail groove.

[0014] As a preferred technical solution of the marine aquaculture cage oxygen supply equipment of this utility model, an air inlet pipe is provided on one side of the top of the oxygen supply body, and a photovoltaic panel that provides power to the air inlet pipe is provided on one side of the top of the oxygen supply body.

[0015] In summary, the present invention has the following main advantages:

[0016] This invention utilizes a crossbeam assembly and an oxygenation assembly in conjunction to allow the two oxygenation assemblies to rotate to a 90-degree position, placing them above the seawater surface. This ensures that manual replacement of the fishing nets in the cages is not affected, while the force of the waves cleans the net cover without requiring manual lifting to prevent blockages, thus ensuring efficient oxygenation of the seawater. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present utility model;

[0018] Figure 2 This is a perspective view of the design of this utility model;

[0019] Figure 3 This is a three-dimensional sectional view of the present invention;

[0020] Figure 4 For the present utility model Figure 3 Enlarged view of point A in the middle;

[0021] Figure 5 This is a structural diagram of the secondary tube and baffle of this utility model.

[0022] Figure 6 This is a top view of the mesh structure of this utility model;

[0023] Figure 7 This is a front view of the cross-shaped structure of this utility model;

[0024] Figure 8 This is a structural diagram of the baffle and main air frame of this utility model.

[0025] In the diagram: 100, main oxygen supply unit; 101, positioning seat; 102, outer cylinder; 103, telescopic pipe;

[0026] 110. Crossbeam assembly; 111. Positioning plate; 112. Arc-shaped seat; 113. Moving plate; 114. Channel; 115. Cable; 120. Oxygen exhaust assembly; 121. Main air frame; 122. Secondary pipe; 123. Baffle; 124. U-shaped seat; 125. Exhaust pipe; 126. Mesh cover; 127. Load-bearing plate; 128. Cross plate; 129. Scraper block. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0028] The embodiments of this utility model will be described below based on its overall structure.

[0029] An oxygen supply device for marine aquaculture cages, such as Figures 1 to 8 As shown, it includes an oxygen supply body 100, a positioning seat 101 is fixedly connected to the bottom of the oxygen supply body 100, an outer cylinder 102 is fixedly sleeved on the outer wall of the positioning seat 101, a crossbeam assembly 110 is sleeved on the outer wall of the outer cylinder 102, and an oxygen exhaust assembly 120 is movably provided at the bottom of the positioning seat 101.

[0030] The oxygen supply body 100 includes a positioning plate 111 fixedly sleeved on the outer wall of the oxygen exhaust component 120. The top of the positioning plate 111 is movably sleeved on the outer wall of the positioning seat 101 with two sets of movable plates 113.

[0031] The oxygen degassing assembly 120 includes two main air frames 121 rotatably mounted to the bottom of the positioning seat 101. The outer walls of the two main air frames 121 are provided with cables 115 that pass through and fix the positioning plates 111. A telescopic pipe 103 connected to the positioning seat 101 is located on one side of the outer wall of the main air frame 121 on the cable 115. Multiple sets of secondary pipes 122 are connected to the outer wall of the main air frame 121, and several sets of exhaust pipes 12 are connected to the outer wall of each secondary pipe 122. 5. A mesh cover 126 is fixed to the top of each exhaust pipe 125. A baffle 123 is movably provided on the outer wall of the main air frame 121 above the mesh cover 126. Multiple U-shaped seats 124 are fixed to the bottom of the baffle 123. A cross plate 128 is rotatably provided at the center of the top of the mesh cover 126. A force-bearing plate 127 extending into the U-shaped seat 124 is fixed to the top of the cross plate 128. Multiple scraper blocks 129 extending into the mesh cover 126 are fixed to the bottom of the cross plate 128.

[0032] The arc-shaped seat 112 at the bottom of the positioning plate 111 is locked onto the frame of the circular net cage. At this time, the oxygen supply body 100 is located at the center of the net cage, while the oxygen depletion component 120 below extends into the seawater to perform oxygen supply operations.

[0033] When it is necessary to replace the fishing net in the aquaculture cage, two people push the two sets of moving plates 113 in the same direction to rotate around the outer cylinder 102. At this time, the cable 115 will be pulled to rotate the main air frame 121 around the contact point with the positioning seat 101 to a 90-degree position (the rotation node of the main air frame 121 and the positioning seat 101 is above the seawater surface). At this time, the main air frame 121 and the multiple sets of auxiliary pipes 122 on the outer wall will be above the seawater surface and will no longer obstruct the replacement of the fishing net. Others can then carry out the replacement of the fishing net.

[0034] When the main air frame 121 and the secondary pipe 122 are in the seawater, the waves will cause the baffle 123 to move back and forth on the outer wall of the main air frame 121, and the U-shaped seat 124 will drive the force plate 127 to move. At this time, the cross plate 128 will rotate at the top of the net cover 126, and the scraper 129 at the bottom will clean the dirt, weeds and other debris in the gap of the net cover 126 to prevent blockage from affecting the oxygen supply to the seawater.

[0035] Please refer to this carefully. Figure 1 , Figure 2 and Figure 3 The top of the oxygen degassing assembly 120 is set to rotate with the bottom of the positioning seat 101 using a torsion spring.

[0036] The main air frame 121 is automatically restored after rotation by the force of the torsion spring, which makes it convenient to deliver oxygen to the seawater.

[0037] Please refer to this carefully. Figure 1 , Figure 2 and Figure 3 The ends of the two sets of moving plates 113 are fixed with positioning rings, and the two sets of positioning rings are alternately sleeved on the outer wall of the outer cylinder 102 by bearings.

[0038] The positioning ring allows the two sets of moving plates to rotate at a fixed point around the outer wall of the outer cylinder 102, thereby realizing the rotation of the two sets of main air frames 121.

[0039] Please refer to this carefully. Figure 3 and Figure 4 A channel 114 is provided at the contact position between the positioning plate 111 and the cable 115, and the upper and lower edges of the channel 114 are provided with arc-shaped chamfers.

[0040] The channel 114 allows the cable 115 to move along a preset trajectory, while the curved chamfer reduces wear on the cable 115.

[0041] Please refer to this carefully. Figure 1 A handle is fixed to the top of the moving plate 113 and to the side away from the oxygen supply body 100, and an arc-shaped seat 112 is fixed to the bottom of the positioning plate 111 below the handle.

[0042] The handle allows for easy manual application of external force to the moving plate 113, while the arc-shaped seat 112 ensures that the oxygen supply device is stably positioned in the center of the aquaculture cage.

[0043] Please refer to this carefully. Figure 8 One end of the baffle 123 is slidably set with the outer wall of the main air frame 121 using a dovetail block, and the outer wall of the cable 115 is provided with a dovetail groove.

[0044] The dovetail blocks and dovetail grooves are used to make the baffle 123 move back and forth by the force of the waves, thereby cleaning the mesh cover 126 and preventing it from getting clogged.

[0045] An air inlet pipe is provided on one side of the top of the oxygen supply unit 100, and a photovoltaic panel that provides power to the oxygen supply unit 100 is provided on one side of the air inlet pipe at the top of the oxygen supply unit 100.

[0046] When in use, the arc-shaped seat 112 at the bottom of the positioning plate 111 is locked onto the frame of the circular net cage. At this time, the oxygen supply body 100 is located at the center of the net cage, while the oxygen degassing component 120 below extends into the seawater to perform oxygen supply operations.

[0047] When it is necessary to replace the fishing net in the aquaculture cage, two people push the two sets of moving plates 113 in the same direction to rotate around the outer cylinder 102. At this time, the cable 115 will be pulled to rotate the main air frame 121 around the contact point with the positioning seat 101 to a 90-degree position (the rotation node of the main air frame 121 and the positioning seat 101 is above the seawater surface). At this time, the main air frame 121 and the multiple sets of auxiliary pipes 122 on the outer wall will be above the seawater surface and will no longer obstruct the replacement of the fishing net. Others can then carry out the replacement of the fishing net.

[0048] When the main air frame 121 and the secondary pipe 122 are in the seawater, the waves will cause the baffle 123 to move back and forth on the outer wall of the main air frame 121, and the U-shaped seat 124 will drive the force plate 127 to move. At this time, the cross plate 128 will rotate at the top of the net cover 126, and the scraper 129 at the bottom will clean the dirt, weeds and other debris in the gap of the net cover 126 to prevent blockage from affecting the oxygen supply to the seawater.

[0049] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. An oxygen supply device for marine aquaculture cages, comprising an oxygen supply body (100), characterized in that: The bottom of the oxygen supply body (100) is connected to and fixed with a positioning seat (101), the outer wall of the positioning seat (101) is fixedly sleeved with an outer cylinder (102), the outer wall of the outer cylinder (102) is sleeved with a crossbeam assembly (110), and the bottom of the positioning seat (101) is movably provided with an oxygen exhaust assembly (120). The oxygen supply body (100) includes a positioning plate (111) fixedly sleeved on the outer wall of the oxygen exhaust component (120), and the top of the positioning plate (111) is movably sleeved on the outer wall of the positioning seat (101) with two sets of movable plates (113). The oxygen degassing assembly (120) includes two sets of main air frames (121) rotatably mounted to the bottom of the positioning seat (101). The outer walls of the two sets of main air frames (121) are provided with cables (115) that pass through the positioning plates (111) and are fixed to the two sets of positioning plates (111). The outer wall of the main air frame (121) on one side of the cable (115) is provided with a telescopic tube (103) connected to the positioning seat (101). The outer wall of the main air frame (121) is connected to multiple sets of secondary pipes (122), and the outer wall of each set of secondary pipes (122) is connected to several sets of exhaust pipes (125). Each set of exhaust pipes (125) has a mesh cover (126) fixed at the top. The outer wall of the main air frame (121) is provided with a baffle (123) above the mesh cover (126). The bottom end of the baffle (123) is fixed with multiple sets of U seats (124). The top center of the mesh cover (126) is provided with a cross plate (128). The top end of the cross plate (128) is fixed with a force-bearing plate (127) extending into the U seat (124). The bottom end of the cross plate (128) is fixed with multiple sets of scraper blocks (129) extending into the mesh cover (126).

2. The oxygen supply equipment for marine aquaculture cages according to claim 1, characterized in that: The top of the oxygen degassing assembly (120) is rotatably mounted on the bottom of the positioning seat (101) using a torsion spring.

3. The oxygen supply equipment for marine aquaculture cages according to claim 1, characterized in that: The ends of the two sets of moving plates (113) are fixed with positioning rings, and the two sets of positioning rings are alternately sleeved on the outer wall of the outer cylinder (102) by bearings.

4. The oxygen supply equipment for marine aquaculture cages according to claim 1, characterized in that: The positioning plate (111) has a channel (114) at the contact position with the cable (115), and the upper and lower edges of the channel (114) have arc-shaped chamfers.

5. An oxygen supply device for marine aquaculture cages according to claim 1, characterized in that: A handle is fixed to the top of the moving plate (113) on the side away from the oxygen supply body (100), and an arc-shaped seat (112) is fixed to the bottom of the positioning plate (111) below the handle.

6. The oxygen supply equipment for marine aquaculture cages according to claim 1, characterized in that: One end of the baffle (123) is slidably disposed with the outer wall of the main air frame (121) using a dovetail block, and the outer wall of the main air frame (121) is provided with a dovetail groove.

7. An oxygen supply device for marine aquaculture cages according to claim 1, characterized in that: An air inlet pipe is provided on one side of the top of the oxygen supply unit (100), and a photovoltaic panel that provides power to the oxygen supply unit (100) is provided on one side of the air inlet pipe at the top of the oxygen supply unit (100).

Citation Information

Patent Citations

  • Oxygen supply device

    CN218635090U