Fish culture net cage device and system

Abstract

The utility model discloses a fish culture net cage device and system, and relates to the technical field of fishery breeding, the device comprises a floating frame, the floating frame floats on the water surface, and the side face of the floating frame is surrounded by a flexible retaining wall; the box body part is hung at the bottom of the floating frame, and a water passing device communicated with an external water body is arranged on the side surface of the box body part; the pollution discharge module is arranged at the bottom end of the box body part and can discharge fish manure into an external solid-liquid separation device; the neck bush fishing box body is placed in the box body part, the inner space of the neck bush fishing box body forms a fish culture space, and the neck bush fishing box body can be lifted upwards from the interior of the box body part. According to a fish culture net cage system formed by a plurality of fish culture net cage devices, fish in the fish culture net cage system can be conveniently caught by lifting the neck bush catching box body upwards, and catching operation can be achieved without pumping out water in a pond.

Description

Technical Field

[0001] The utility model relates to the technical field of fishery aquaculture, in particular to a fish farming net cage device and system. Background Art

[0002] With the growth of the global population and the increasing demand for high-protein foods, the aquaculture industry is facing unprecedented pressure. Traditional aquaculture methods not only occupy a large amount of land resources, but also easily cause water pollution and ecological damage. Therefore, the development of efficient and environmentally friendly aquaculture technologies has become an urgent problem to be solved. The integrated fixed water-based environmental protection fish farming net cage technology has emerged. By setting fixed net cages with certain specifications and shapes in the water body and using natural water body resources for fish farming, many problems in traditional aquaculture methods have been effectively solved.

[0003] However, for the existing integrated fixed water-based boxes, when fishing, the entire pool of water needs to be drained before fish can be caught in the box, and the fishing is difficult. Therefore, there is an urgent need to design a net cage device that can achieve convenient fishing without draining the entire pool of water. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a fish farming net cage device and system to solve the problems existing in the above-mentioned prior art. By lifting the inner lining sleeve fishing box upward, the fish inside can be conveniently caught, and the fishing operation can be achieved without draining the pool water.

[0005] To achieve the above purpose, the utility model provides the following scheme:

[0006] The utility model provides a fish farming net cage device, including:

[0007] A floating frame that floats on the water surface, and a flexible retaining wall surrounds the side of the floating frame;

[0008] A box body part that is suspended at the bottom of the floating frame, and a water passing device communicating with the external water body is arranged on the side of the box body part;

[0009] A sewage discharge module that is arranged at the bottom end of the box body part and can discharge fish feces into an external solid-liquid separation device;

[0010] An inner lining sleeve fishing box that is placed inside the box body part, and the internal space forms a fish farming space and can be lifted upward from inside the box body part.

[0011] Optionally, the box body part includes a plurality of boxes with openings at both the upper and lower ends, and adjacent two boxes are connected by a water passing device; the top of the box at the uppermost position is connected to the bottom of the floating frame through a hoop.

[0012] Optionally, the water passing device includes a plurality of nylon mesh water passing windows, which are arranged around the side of the box body, located between two adjacent boxes, and fixedly connected to the adjacent boxes. The nylon mesh water passing window is a filtering window surrounded by nylon mesh, usually used in water treatment systems to filter impurities and suspended solids in water. The design of this kind of water passing window can ensure the passage of water while intercepting larger particle impurities, thus playing a preliminary filtering role.

[0013] Optionally, both the flexible retaining wall and the box body are made of PVC knife-coated fabric. PVC knife-coated fabric is a special PVC (polyvinyl chloride) coated fabric, which coats PVC resin on the base fabric through the knife coating process to form a material with high strength and wear resistance.

[0014] Optionally, the sewage discharge module includes a conical sewage discharge hood fixedly arranged at the bottom end of the box body part. A sewage discharge port is opened at the conical end of the bottom of the conical sewage discharge hood. The sewage discharge port is fixedly connected with an L-shaped sewage discharge pipe through a metal connector. The L-shaped sewage discharge pipe is connected to the solid-liquid separation device through a pipeline with a valve and a sewage pump.

[0015] Optionally, the metal connector includes an iron splint and a sewage pipe splint. The iron splint is located at the inner bottom of the conical sewage discharge hood and is provided with a through hole coaxial with the sewage discharge port. The inner diameter of the through hole is not less than the inner diameter of the sewage discharge port. The sewage pipe splint is fixedly sleeved on the outer wall of the upper part of the L-shaped sewage discharge pipe. After the top of the L-shaped sewage discharge pipe passes through the sewage discharge port, the iron splint and the sewage pipe splint are fixedly connected by bolts.

[0016] Optionally, the inner liner fishing box has the same structure as the box body part, and its top is suspended at the bottom of the floating frame; and a conical cover is provided at the bottom of the inner liner fishing box. A circular hole is provided at the conical end of the bottom of the conical cover. A magnetic pressing strip gasket is provided at the outer edge of the circular hole, and the magnetic pressing strip gasket can be adsorbed on the metal connector; a fishing pulling rope is fixedly connected to the circular hole, and the end of the fishing pulling rope is connected to the floating frame.

[0017] Optionally, it further includes a positioning rod. A threaded rod is fixedly provided at the bottom of the positioning rod. Internal threads are fixedly provided on the inner wall of the top opening of the L-shaped sewage discharge pipe. The threaded rod can be threadedly connected to the top opening of the L-shaped sewage discharge pipe, and the circular hole can movably pass through the positioning rod.

[0018] The present utility model also provides a fish farming net cage system, including a plurality of the above-mentioned fish farming net cage devices;

[0019] The sewage module of the fish farming cage device is connected to a sewage branch pipe, a solenoid valve is provided on the sewage branch pipe, and a control device is externally connected to the solenoid valve. The end of the sewage branch pipe is connected to a sewage main pipe, and the sewage main pipe is connected to the solid-liquid separation device through a sewage pump.

[0020] The utility model also provides an operation method of a fish farming cage system, comprising the following steps:

[0021] Step 1: hang the assembled box body and sewage discharge module on the bottom of the floating frame;

[0022] Step 2: Insert the positioning rod into the box body and connect it to the L-shaped drain outlet through the threaded rod.

[0023] Step 3: The circular hole of the inner sleeve fishing box passes through the top of the positioning rod, and then the inner sleeve fishing box is placed in the box body, and the push rod is used to push the magnetic pressure strip gasket downward to make it adsorbed and connected with the iron clamping plate;

[0024] Step 4: Rotate the positioning rod in the opposite direction to make the threaded rod disengage from the L-shaped drain outlet, and then remove the positioning rod;

[0025] Step 5: Perform fish farming operations in the inner sleeve fishing box. When inspecting or fishing, reinsert the positioning rod and pull the fishing rope upward to make the inner sleeve fishing box move up along the positioning rod to a set height;

[0026] When discharging sewage, open the solenoid valve and sewage pump, and the remaining bait and feces will be sucked into the sewage main pipe through the sewage branch pipe, and then lifted to the solid-liquid separation device on the shore through the sewage pump. The fish feces after solid-liquid separation can be utilized as resources.

[0027] Compared with the prior art, the utility model has achieved the following technical effects:

[0028] The utility model provides an inner liner fishing box body that can be pulled up inside the box body, so that the fish cultured in the inner liner fishing box body can be simultaneously pulled up by just pulling up the inner liner fishing box body, thereby realizing fishing operations without draining the pool water; the provision of a sewage discharge module facilitates timely discharge of bait, feces, etc. to a solid-liquid separation device on the shore to avoid polluting the water body. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1Schematic structural diagram of the fish - farming net - cage device of the present utility model;

[0031] Figure 2 Schematic diagram of the inner - lining sleeve fishing box body of the fish - farming net - cage device of the present utility model;

[0032] Figure 3 Schematic diagram of the L - shaped sewage pipe and positioning rod of the present utility model;

[0033] Figure 4 Schematic diagram of the fish - farming net - cage system of the present utility model.

[0034] In the figure: 1 - floating frame, 2 - flexible retaining wall, 3 - hoop, 4 - box body, 5 - nylon net water - passing window, 6 - conical sewage hood, 7 - L - shaped sewage pipe, 8 - inner - lining sleeve fishing box body, 9 - conical cover, 10 - magnetic gasket, 11 - iron splint, 12 - sewage pipe splint, 13 - positioning rod, 14 - sewage branch pipe, 15 - solenoid valve, 16 - sewage main pipe, 17 - solid - liquid separation device, 18 - automatic control cabinet, 19 - threaded rod, 20 - sewage pump, 21 - fishing pull rope. Specific implementation manners

[0035] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

[0036] The purpose of the present utility model is to provide a fish - farming net - cage device and system to solve the problems existing in the above - mentioned prior art. By lifting the inner - lining sleeve fishing box body upward, the fish inside can be conveniently fished, and the fishing operation can be realized without draining the pool water.

[0037] To make the above - mentioned purposes, features and advantages of the present utility model more obvious and understandable, the present utility model will be further described in detail below in conjunction with the drawings and specific implementation manners.

[0038] Refer to Figure 1 、 Figure 2 and Figure 3As shown in the figure, one of the purposes of the present utility model is to provide a fish farming cage device, which includes a floating frame 1. The floating frame 1 is a three-dimensional frame structure composed of polyethylene pipes, and it floats on the water surface as a whole. A flexible retaining wall 2 is arranged around the side of the floating frame 1. The flexible retaining wall 2 of the present utility model is made of PVC knife-coated cloth and stands upright on the water surface by the buoyancy of the floating frame 1 to prevent fish from jumping out of the box body during the breeding process. The box body is suspended at the bottom of the floating frame 1 through a hoop 3, and a water passing device communicating with the external water body is arranged on the side of the box body. The sewage discharge module is arranged at the bottom end of the box body and can discharge fish feces into the external solid-liquid separation device 17. The inner lining sleeve fishing box body 8 is placed inside the box body, and its internal space forms a breeding space for fish and can be lifted upward from inside the box body. By arranging the inner lining sleeve fishing box body 8 that can be lifted upward inside the box body, only by lifting the inner lining fishing box body upward, the fish cultured in the inner lining fishing box body can be lifted upward synchronously, realizing the fishing operation without draining the pool water. The setting of the sewage discharge module facilitates timely discharging bait, feces and the like into the solid-liquid separation device 17 on the shore to avoid polluting the water body.

[0039] In a preferred embodiment, the box body includes a plurality of box bodies 4 with openings at both the upper and lower ends. The adjacent two box bodies 4 are connected by a water passing device. The top of the box body 4 at the uppermost position is connected to the bottom of the floating frame 1 through a hoop 3, and the four sides of the box body 4 at the uppermost position hang 30 cm below the water surface. When feeding expanded granular floating feed into the box body 4, the granular floating feed will not overflow from the box body 4. The design of the box body 4 maintains the water retaining effect and prevents the fish feces from floating out of the box body and polluting the water body due to the shaking of the water body in a too permeable net cage. The water passing device in this embodiment adopts a nylon mesh water passing window 5. The nylon mesh water passing window 5 is arranged around the side of the box body, and the nylon mesh water passing window 5 is located between two adjacent box bodies and is fixedly connected to the adjacent box bodies. The design purpose of the nylon mesh water passing window 5 is to realize the exchange of water between the inside and outside of the box body of the present utility model.

[0040] The inner lining sleeve fishing box body 8 in this embodiment has the same structure as the box body. Its top is suspended at the bottom of the floating frame 1. The inner lining sleeve fishing box body 8 is also connected to the floating frame 1 by a stainless steel hoop 3 at the water surface. The inner diameter of the mesh of the nylon mesh water passing window 5 of the box body is larger than the inner diameter of the mesh of the nylon mesh water passing window 5 on the inner lining sleeve fishing box body 8. The purpose of the mesh of the nylon mesh water passing window 5 of the inner lining sleeve fishing box body 8 is to block fish, while the mesh of the nylon mesh water passing window 5 of the box body is to maintain the permeability of the water body. And a conical cover 9 is arranged at the bottom of the inner lining sleeve fishing box body 8. A circular hole is arranged at the conical end of the bottom of the conical cover 9, and a magnetic pressing strip gasket 10 is arranged at the outer edge of the circular hole. The magnetic pressing strip gasket 10 can be adsorbed on the metal connecting piece. A fishing pulling rope 21 is fixedly connected to the circular hole, and the end of the fishing pulling rope 21 is connected to the floating frame 1.

[0041] When the inner liner fishing box 8 in this embodiment is installed, it is necessary to use the positioning rod 13 to assist. A threaded rod 19 is provided at one end of the positioning rod 13. During the initial installation or the circulating fishing operation, the threaded rod 19 at the bottom of the positioning rod 13 is inserted into the circular hole of the inner liner fishing box 8, and then the threaded rod 19 is inserted into the top opening of the L-shaped sewage pipe 7. The threaded rod 19 is screwed and connected with the internal thread of the top opening of the L-shaped sewage pipe 7 to achieve positioning. The operator holds a bamboo pole or a push rod, etc., and pushes the magnetic pressure strip gasket 10 of the inner liner fishing box 8 underwater, so that the bottom of the inner liner fishing box 8 sinks quickly, causing the magnetic pressure strip gasket 10 to absorb the iron splint at the bottom of the conical sewage collecting cover under the action of magnetism, thereby achieving the installation of the inner liner fishing box 8. After the installation is completed, the positioning rod 13 is rotated in the opposite direction to make the threaded rod 19 disengage from the L-shaped sewage pipe 7, and the positioning rod 13 is pulled out to expose the sewage outlet. A fishing rope is connected to the magnetic layering washer 10, and the other end of the fishing rope is exposed above the water surface and is usually tied to the flexible retaining wall 2. When performing regular inspection or fishing, the positioning rod 13 is first inserted and then the fishing rope is pulled upward. The magnetic layering washer 10 is extended along the positioning rod 13 and pulled upward out of the water to collect the net and catch fish.

[0042] In order to achieve a better sewage discharge effect, the sewage discharge module of this embodiment includes a conical sewage discharge hood 6 fixedly arranged at the bottom end of the box body. The bottom of the box body is a box body, and the conical sewage collecting hood is connected through the bottom box body to prevent fish feces from overflowing from the bending part of the conical sewage collecting hood and the box body; a sewage outlet is opened at the conical end of the bottom of the conical sewage discharge hood 6, and the sewage outlet is fixedly connected to an L-shaped sewage discharge pipe 7 through a metal connector. The top opening of the L-shaped sewage discharge pipe 7 is exposed in the conical sewage collecting hood for easy sewage discharge. Fish feces in the breeding process fall into the bottom of the conical sewage collecting hood through natural sedimentation, and are collected and accumulated at the top opening of the L-shaped sewage discharge pipe 7. The L-shaped sewage discharge pipe 7 is connected to the solid-liquid separation device 17 through a pipeline with a valve and a sewage pump 20.

[0043] In order to realize the installation of the L-shaped sewage pipe 7, the metal connecting piece of this embodiment adopts a plate-like structure, which includes an iron splint 11 and a sewage pipe splint 12. The iron splint 11 is located at the inner bottom of the conical sewage cover 6, and is provided with a through hole coaxial with the sewage outlet, and the inner diameter of the through hole is not less than the inner diameter of the sewage outlet. The sewage pipe splint 12 is fixedly sleeved on the upper outer wall of the L-shaped sewage pipe 7. After the top of the L-shaped sewage pipe 7 is passed through the sewage outlet, the iron splint 11 and the sewage pipe splint 12 are connected along the outer edge of the sewage outlet and fixedly connected by bolts, so that the top opening of the L-shaped sewage pipe 7 passes through the sewage outlet and is fixedly connected to the sewage outlet.

[0044] like Figure 4As shown, another object of the utility model is to provide a fish farming cage system, which has multiple fish farming cage devices as above evenly distributed in the water body; the sewage module of the fish farming cage device is connected to a sewage branch pipe 14, and the sewage branch pipe 14 is provided with a solenoid valve 15, and the solenoid valve 15 is externally connected to a control device, and the end of the sewage branch pipe 14 is connected to a sewage main pipe 16, and the sewage main pipe 16 is connected to a solid-liquid separation device 17 through a sewage pump 20. The control line of the solenoid valve 15 is connected to an onshore automation control cabinet 18, and a programming system is installed in the automation control cabinet 18. The automation control cabinet 18 is an electrical control cabinet used for centralized management and control of various equipment in the automation system. It includes various electrical and electronic components, such as relays, contactors, programmable logic controllers, frequency converters, touch screens, etc., which are used to realize monitoring and control of the automation system and belong to the prior art. The programming system, i.e., the programmable logic controller, belongs to the prior art and is therefore not described in detail. The programming system sets the sewage discharge time and controls the solenoid valves 15 on each sewage discharge branch pipe 14 to open and discharge sewage in a timely and sequential cycle. The solenoid valves 15 connect the sewage discharge branch pipes 14 and the sewage discharge main pipe 16. The top of the sewage discharge main pipe 16 is connected to a sewage pump 20. The control line of the sewage pump 20 is synchronously connected to the shore automation control cabinet 18. When the programming system triggers the solenoid valve 15 to discharge sewage, it also triggers the start of the sewage pump 20. The residual bait and feces accumulated at the top opening of the L-shaped sewage discharge pipe 7 will be instantly sucked into the sewage discharge main pipe 16 through the sewage discharge branch pipe 14, and then lifted to the solid-liquid separation device 17 on the shore through the sewage pump 20. The fish feces separated by the solid-liquid separation device 17 can be utilized as resources. The solid-liquid separation device 17 used in the utility model is a device for separating solids from liquids. This device is widely used in many industries, mainly in sewage treatment, food processing, chemical production and other fields, and belongs to the existing technology.

[0045] The utility model also provides an operation method of a fish farming cage system, comprising the following steps:

[0046] The assembled box body and sewage discharge module are hung at the bottom of the floating frame 1; the positioning rod 13 is inserted into the box body, and connected to the L-shaped sewage discharge port through the threaded rod 19, and the circular hole of the inner sleeve fishing box body 8 passes through the top of the positioning rod 13, and then the inner sleeve fishing box body 8 is placed in the box body, and the push rod is used to push the magnetic pressure strip gasket 10 downward to make it adsorbed and connected with the iron clamping plate 11; the positioning rod 13 is rotated in the opposite direction so that the threaded rod 19 is separated from the L-shaped sewage discharge port, and then the inner sleeve fishing box body 8 is taken out. Positioning rod 13; fish farming operations are carried out in the inner sleeve fishing box 8. When checking or fishing, the positioning rod 13 is reinserted, and the fishing rope is pulled upward to make the inner sleeve fishing box move up along the positioning rod 13 to the set height; when discharging sewage, the solenoid valve 15 and the sewage pump 20 are opened, and the residual bait and feces will be sucked into the sewage main pipe 16 through the sewage branch pipe 14, and then lifted to the solid-liquid separation device 17 on the shore by the sewage pump 20. The fish feces after solid-liquid separation can be utilized as resources.

[0047] The utility model solves the problem that when fishing with an integrated fixed water-based box, the whole pool of water needs to be drained to catch fish in the box. At the same time, it also solves the limitation that a water-based box cannot be designed for large water surfaces. The inner liner fishing box 8 can also extract the box at any time during the breeding process to check the fish in the box, observe the growth situation, or conduct regular centralized fish collection. The fish can be taken out of the water naked and soaked in a small dose of medicine to prevent and control pests and diseases, which can greatly reduce the disadvantages of large-dose use of antibiotics in the water body in the traditional high-density breeding mode and avoid the exceeding standard of antibiotics in aquaculture.

[0048] Specific examples are used in the utility model to elaborate on the principle and implementation manner of the utility model. The description of the above embodiments is only used to help understand the method and its core idea of the utility model; at the same time, for those of ordinary skill in the art, according to the idea of the utility model, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the utility model.

Claims

1. A fish farming cage device, characterized in that: include: A floating frame, which floats on the water surface, and a flexible retaining wall surrounds the side of the floating frame; A box body is suspended at the bottom of the floating frame, and a water-passing device connected to an external water body is provided on the side of the box body; A sewage discharge module, arranged at the bottom of the box body, capable of discharging fish feces into an external solid-liquid separation device; The inner liner fishing box is placed in the box body, and its internal space forms a fish breeding space, which can be pulled upward from the box body.

2. The fish farming cage device according to claim 1, characterized in that: The box body portion includes a plurality of boxes with openings at both ends, and two adjacent boxes are connected by a water-passing device; the top of the box body located at the top is connected to the bottom of the floating frame through a clamp.

3. The fish farming cage device according to claim 2, characterized in that: The water passing device comprises a plurality of nylon mesh water passing windows, the nylon mesh water passing windows are arranged around the side of the box body, and the nylon mesh water passing windows are located between two adjacent boxes and are fixedly connected to the adjacent boxes.

4. The fish farming cage device according to claim 2, characterized in that: The flexible retaining wall and the box body are both made of PVC scraper cloth.

5. The fish farming cage device according to claim 3, characterized in that: The sewage discharge module includes a conical sewage discharge cover fixedly arranged at the bottom end of the box body, and a sewage discharge port is opened at the conical end of the bottom of the conical sewage discharge cover. The sewage discharge port is fixedly connected to an L-shaped sewage discharge pipe through a metal connector, and the L-shaped sewage discharge pipe is connected to the solid-liquid separation device through a pipeline with a valve and a sewage pump.

6. The fish farming cage device according to claim 5, characterized in that: The metal connecting part includes an iron splint and a sewage pipe splint. The iron splint is located at the bottom inner side of the conical sewage cover and is provided with a through hole coaxial with the sewage outlet. The inner diameter of the through hole is not less than the inner diameter of the sewage outlet. The sewage pipe splint is fixedly mounted on the upper outer wall of the L-shaped sewage pipe. After the top of the L-shaped sewage pipe is passed through the sewage outlet, the iron splint is fixedly connected to the sewage pipe splint by bolts.

7. The fish farming cage device according to claim 5, characterized in that: The inner sleeve fishing box has the same structure as the box body, and its top is suspended on the bottom of the floating frame; and a conical cover is provided at the bottom of the inner sleeve fishing box, a circular hole is provided at the conical end of the bottom of the conical cover, and a magnetic pressure strip gasket is provided at the outer edge of the circular hole, and the magnetic pressure strip gasket can be adsorbed on the metal connecting piece; a fishing rope is fixedly connected to the circular hole, and the end of the fishing rope is connected to the floating frame.

8. The fish farming cage device according to claim 7, characterized in that: It also includes a positioning rod, a threaded rod is fixedly provided at the bottom of the positioning rod, an inner wall at the top opening of the L-shaped sewage pipe is fixedly provided with an internal thread, the threaded rod can be threadedly connected with the top opening of the L-shaped sewage pipe, and the circular hole can be movably penetrated on the positioning rod.

9. A fish farming cage system, characterized in that: Comprising a plurality of fish farming cage devices according to any one of claims 1 to 8; The sewage module of the fish farming cage device is connected to a sewage branch pipe, a solenoid valve is provided on the sewage branch pipe, and a control device is externally connected to the solenoid valve. The end of the sewage branch pipe is connected to a sewage main pipe, and the sewage main pipe is connected to the solid-liquid separation device through a sewage pump.

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