A lifting type breeding cage

Abstract

A lifting aquaculture cage comprises an outer support frame and an inner cage, each of which is provided with a ballast water tank. The inner cage floats and sinks along the vertical channel of the outer support frame when water or air is passed through it. A control console and an air compressor are installed on the top of the outer support frame. The air compressor is connected to the ballast water tanks of the outer support frame and the inner cage through an air pipeline. The lifting aquaculture cage is driven by ballast water and compressed air. It has stable operation, can greatly reduce the failure rate, and improve service life and working stability. It can also easily transfer the aquaculture water area and has high flexibility.

Description

Technical Field

[0001] The utility model relates to aquaculture equipment, in particular to a breeding net cage which can be moved to the water surface or underwater by lifting. Background Art

[0002] Aquaculture is the cultivation of aquatic crops directly in rivers, streams or seas, which has the advantages of low cost and convenient operation. Cage aquaculture is one of the main methods of aquaculture. The existing cages used for aquaculture mainly include floating aquaculture cages, bottom-mounted truss cages, and self-elevating truss cages. Floating aquaculture cages are cages that float on the water surface during the aquaculture process, on which buoys and mooring positioning devices are installed; this type of cage is greatly affected by the marine environment and is prone to violent shaking or the risk of hitting the bottom in windy and choppy weather, resulting in damage to the cage structure and high casualties of aquatic products. Bottom-mounted truss cages are fixed underwater, and the required nets are of high quality. During maintenance, lifting equipment is required to lift the net as a whole. The load on them is large and they are prone to breakage, which makes their maintenance difficult and their operation efficiency low. The self-elevating truss cage is composed of slender pile legs and a liftable cage. A lifting device is installed between the pile legs and the cage, and the cage is driven to rise and fall along the pile legs through the lifting device. The lifting device of the existing self-elevating truss cage has a relatively complex structure and mainly relies on gears and racks for driving. Its components are prone to cracks, failures and other accidents under environmental loads, causing the cage to get stuck, unable to be maintained or even destroyed. Utility Model Content

[0003] The utility model aims to provide a lifting type breeding cage with an inside-outside structure, so as to improve the working stability of the breeding cage and reduce the equipment failure rate.

[0004] The lifting aquaculture cage described in the utility model comprises an outer supporting frame and an inner cage, both of which are provided with ballast water tanks, which drive the outer supporting frame or the inner cage to sink after being loaded with water or float after air is introduced, and the ballast water tanks are provided with valves for introducing water flow; the bottom of the outer supporting frame is fixed to the bottom of the water by an underwater positioning mechanism, the top of the outer supporting frame extends above the water surface, and a vertical passage is provided on the inner side of the outer supporting frame; the inner cage is movably arranged in the vertical passage of the outer supporting frame; a control console is also provided on the top of the outer supporting frame, and an air compressor is installed on the control console, the air compressor is connected to the ballast water tanks of the outer supporting frame and the inner cage through air pipelines, and the air compressor introduces air into the ballast water tanks through the air pipelines and discharges ballast water.

[0005] Furthermore, the outer support frame includes a guide frame located underwater and a limit frame located on the water surface, and the vertical channel is arranged in the guide frame; the side of the limit frame is provided with a door or a railing for the inner cage to enter and exit.

[0006] Furthermore, a bearing mechanism for supporting the inner mesh box is installed at the bottom of the outer support frame.

[0007] Furthermore, the inner cage includes a cage frame and a breeding net covering the cage frame; a water depth display for displaying the draft depth is vertically arranged on the upper edge of the cage frame.

[0008] Furthermore, the water depth indicator is a scale line arranged on the cage frame.

[0009] Furthermore, a guiding mechanism for mutually cooperating and guiding each other is arranged between the outer supporting frame and the inner mesh box.

[0010] Furthermore, a limiting mechanism is installed between the outer supporting frame and the inner mesh box.

[0011] Furthermore, a feeding device for feeding food is installed on the outer supporting frame or the inner net cage.

[0012] Furthermore, a lifting device is installed on the top of the outer support frame.

[0013] Furthermore, mutually fixed connection devices are installed between adjacent outer support frames.

[0014] The lifting aquaculture cage described in the utility model has an outer support frame and an inner cage forming an inner and outer structure, and the outer structure forms a lateral limit and a vertical guide for the inner structure, so that the inner cage can be lifted and moved along the vertical channel of the outer support frame. The bottom of the outer support frame is fixed to the bottom of the water by an underwater positioning mechanism, and the underwater positioning mechanism can be a pile, a sinking pad or other heavy weights, which can be selected according to the geological conditions of the bottom of the water; when the aquaculture cage needs to change the aquaculture water area, the air compressor is controlled by the control console to introduce compressed air into the ballast tank of the outer support frame, so that the outer support frame floats and the bottom leaves the bottom of the water, and the outer support frame can be recovered or the aquaculture cage can be pulled to the required water area by a ship. The inner cage can sink to the bottom of the water after ballast water is introduced through the valve, thus realizing underwater farming. When the inner cage needs to be maintained or aquatic products need to be harvested, compressed air can be introduced into the ballast tank of the inner cage to make it float to the surface. After the maintenance or harvesting is completed, ballast water can be introduced again to continue underwater farming. This type of lifting aquaculture cage uses ballast water and compressed air to drive the lifting. Its operation is stable, which can greatly reduce the failure rate, improve the service life and working stability; it can also easily transfer the aquaculture water area and has high flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the state in which the inner cage sinks to the bottom of the outer support frame.

[0016] Figure 2 It is a schematic diagram of the inner cage floating on the water surface.

[0017] Figure 3 It is a schematic diagram of the connection structure of adjacent lifting aquaculture cages.

[0018] Figure 4 It is a schematic diagram of the side structure of the outer support frame.

[0019] Figure 5 It is a top view structural diagram of the outer support frame.

[0020] Figure 6 It is a schematic diagram of the side structure of the inner network box.

[0021] Figure 7 It is a top view structural diagram of the inner network cage. DETAILED DESCRIPTION

[0022] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial...), then the directional indication is only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0024] If there are descriptions involving "first" or "second" in the embodiments of the utility model, the descriptions of "first" or "second" are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0025] The utility model provides a lifting type breeding cage.

[0026] The lifting aquaculture cage of the present embodiment comprises an outer support frame 1 and an inner cage 2, both of which are provided with ballast water tanks 3, which drive the outer support frame or the inner cage to sink after being loaded with water or float after being introduced with air, and the ballast water tanks are provided with valves for introducing water flow; the bottom of the outer support frame is fixed to the bottom of the water by an underwater positioning mechanism 4, the top of the outer support frame extends above the water surface, and a vertical passage is provided on the inner side of the outer support frame; the inner cage is movably arranged in the vertical passage of the outer support frame; a control console 5 is also provided on the top of the outer support frame, and an air compressor 6 is installed on the control console, which is connected to the ballast water tanks of the outer support frame and the inner cage through air pipelines, and the air compressor introduces air into the ballast water tanks through the air pipelines and discharges ballast water.

[0027] The lifting type aquaculture cage, the outer support frame and the inner cage form the inner and outer structures, the outer structure forms a lateral limit and a vertical guide for the inner structure, so that the inner cage can be lifted and moved along the vertical channel of the outer support frame. The bottom of the outer support frame is fixed to the bottom of the water by an underwater positioning mechanism, and the underwater positioning mechanism can be a pile, a sinking pad or other heavy weights, which can be selected according to the geological conditions of the bottom of the water; when the aquaculture cage needs to change the aquaculture water area, the control console controls the air compressor to pass compressed air into the ballast tank of the outer support frame, so that the outer support frame floats and the bottom leaves the bottom of the water, and the outer support frame can be recovered or the aquaculture cage can be pulled to the required water area by a ship. The inner cage can sink to the bottom of the water after ballast water is introduced through the valve, thus realizing underwater aquaculture. When the inner cage needs to be maintained or aquatic products need to be harvested, compressed air can be introduced into the ballast tank of the inner cage to make it float to the surface of the water. After the maintenance or harvesting is completed, ballast water is introduced again to continue underwater aquaculture.

[0028] The lifting type aquaculture cage, the outer support frame 1 includes a guide frame 11 located underwater and a limit frame 12 located on the water surface. The vertical channel is set in the guide frame to limit and guide the inner cage. When the inner cage floats to the water surface, the limit frame is used to limit the inner cage horizontally to prevent it from falling off. The guide frame and the limit frame can use corresponding materials as needed to better resist the harsh marine environment; at the same time, the side of the limit frame 12 can also be provided with a door or railing for the inner cage 2 to enter and exit, so as to take away the inner cage. The guide frame 11 includes a vertical column, a horizontal column, and a support column connecting the column and the horizontal column. The guide frame can be in the form of a large steel pipe, a truss arm, a box-type plate frame structure, etc. The bottom of the outer support frame 1 can also be installed with a bearing mechanism 7 for supporting the inner cage 2, which is mainly used to bear the weight of the inner cage after sinking, and its shape and position match the bottom shape of the inner cage.

[0029] The lifting type aquaculture cage, the inner cage 2 comprises a cage frame 21 and a farming net 22 covering the cage frame, the farming net can be single-layer or double-layer, and the enclosed space formed is used for fish farming. A water depth display 8 showing the draft depth is vertically arranged on the cage frame 21 to identify the sinking and floating depth of the inner cage, the water depth display 8 can be an electronic instrument, or a scale line arranged on the cage frame 21, and its structure is simple and intuitive.

[0030] In the lifting type aquaculture cage, a guiding mechanism 9 is provided between the outer support frame 1 and the inner cage 2, such as grooves and convex strips matched with the concave platform, or a ring-shaped limiting ring and a guiding rod moving along the limiting ring; the guiding mechanism 9 is provided on the opposite sides of the guiding frame 11 and the cage frame 21, so as to better guide and reduce the probability of damage to the outer support frame and the inner cage. A limiting mechanism 10 is also provided between the outer support frame 1 and the inner cage 2 to restrict the horizontal movement of the inner cage; the limiting mechanism 10 can be an air bag or a telescopic rod, which is in a contracted state when the inner cage sinks, so as to facilitate the free sinking and floating of the inner cage, and is in an expanded or stretched state after the inner cage sinks and floats in place, so as to limit the position of the inner cage and the outer support frame.

[0031] The lifting aquaculture cages described above are provided with a feeding device 20 for feeding food on the outer support frame 1 or the inner cage 2, so as to feed the fish better and more efficiently. A lifting device 30 is also installed on the top of the outer support frame 1, so as to conveniently lift the inner cage or food under certain circumstances. In addition, a net washing device 40 for maintaining the aquaculture nets can also be installed on the outer support frame 1, so as to improve the convenience and efficiency of the maintenance work. In addition, mutually fixed connecting devices are installed between adjacent outer support frames 1, so that the lifting aquaculture cages are modularized to form aquaculture systems of different specifications, and it is also convenient for the lifting equipment to cover multiple aquaculture cages, thereby improving equipment utilization and reducing production costs.

[0032] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A lifting type aquaculture cage, characterized by: The invention comprises an outer support frame (1) and an inner net cage (2), wherein both the outer support frame and the inner net cage are provided with a ballast water tank (3), the ballast water tank drives the outer support frame or the inner net cage to sink after being loaded with water or float after being introduced with air, and the ballast water tank is provided with a valve for introducing water flow; the bottom of the outer support frame is fixed to the bottom of the water by an underwater positioning mechanism (4), the top of the outer support frame extends above the water surface, and a vertical passage is provided on the inner side of the outer support frame; the inner net cage is movably arranged in the vertical passage of the outer support frame; the top of the outer support frame is also provided with a control console (5), and an air compressor (6) is installed on the control console, the air compressor is connected to the ballast water tanks of the outer support frame and the inner net cage through an air pipeline, and the air compressor introduces air into the ballast water tank through the air pipeline and discharges ballast water.

2. The lifting type aquaculture cage according to claim 1 is characterized in that: The outer layer support frame (1) comprises a guide frame (11) located underwater and a limit frame (12) located on the water surface, and the vertical passage is arranged in the guide frame; a door or a railing for the inner layer net box (2) to enter and exit is arranged on the side of the limit frame (12).

3. The lifting type aquaculture cage according to claim 1 or 2, characterized in that: A bearing mechanism (7) for supporting the inner net box (2) is installed at the bottom of the outer support frame (1).

4. The lifting type aquaculture cage according to claim 1 is characterized in that: The inner cage (2) comprises a cage frame (21) and a breeding net (22) covering the cage frame; a water depth display (8) for displaying the draft depth is vertically arranged on the upper edge of the cage frame (21).

5. The lifting type aquaculture cage according to claim 4 is characterized in that: The water depth display (8) is a scale line arranged on the cage frame (21).

6. The lifting type aquaculture cage according to claim 1, 2 or 4, characterized in that: A guiding mechanism (9) for guiding each other is provided between the outer layer support frame (1) and the inner layer net box (2).

7. The lifting type aquaculture cage according to claim 1, 2 or 4, characterized in that: A limiting mechanism (10) is installed between the outer support frame (1) and the inner net box (2).

8. The lifting type aquaculture cage according to claim 1 is characterized in that: A feeding device (20) for feeding food is installed on the outer support frame (1) or the inner net cage (2).

9. The lifting type aquaculture cage according to claim 1, characterized in that: A lifting device (30) is installed on the top of the outer support frame (1).

10. The lifting type aquaculture cage according to claim 1 or 9, characterized in that: Adjacent outer support frames (1) are provided with mutually fixed connection devices.

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