Fry screening net cage structure

Abstract

The utility model discloses a fry screening net cage structure, and belongs to the technical field of fry feeding. The device comprises a top box frame, supporting rods penetrate through the four corners of the top box frame, a bottom box frame is arranged at the bottoms of the supporting rods, and a blocking net is arranged between the bottom box frame and the top box frame. Flexible aperture adaptation is achieved through the replaceable screen, the blocking net and the bottom net, multi-stage accurate screening can be conducted according to the sizes of fries, the space in the net cage is driven to be dynamically reduced by means of a mechanical screening mechanism, the fries are promoted to pass through the net with the corresponding aperture according to the specification in a non-contact fish driving mode, manual intervention is greatly reduced, and the screening efficiency is improved; in the screening process, water pool baffles are used for limiting and sealing, the staged and graded collection design is combined, physical damage and multiple transfer stress caused by traditional manual operation are avoided, meanwhile, the flow is simplified through automatic collection area division, the cross contamination risk is reduced, and efficient, accurate and protective fry graded screening operation is achieved.

Description

Technical Field

[0001] This utility model relates to the field of fish fry breeding technology, and in particular to a fish fry sorting net box structure. Background Technology

[0002] Fish fry rearing is a crucial step in aquaculture. During the fry's growth process, it's necessary to sort and classify fry of different sizes to facilitate graded rearing, thereby improving farming efficiency and economic benefits. Traditional methods for sorting fry typically involve manual screening or the use of simple sieve equipment.

[0003] With the continuous development of aquaculture technology, the requirements for fish fry sorting equipment are also getting higher and higher. There is a need for a net cage structure that can efficiently and accurately sort fish fry while ensuring their health. This net cage structure should have a reasonable screen design that can accurately control the size of the pores to meet the sorting needs of fish fry of different sizes. In addition, it should be equipped with a good water circulation and aeration system to provide a suitable living environment for the fish fry and reduce the stress and damage to the fish fry during the sorting process.

[0004] Traditional screening equipment uses screens with fixed mesh sizes, which cannot be dynamically adjusted according to the growth stage of fish fry. This requires frequent replacement of the entire equipment or manual replacement of the nets, making the operation cumbersome and prone to errors in the mesh size, resulting in insufficient screening accuracy. Existing equipment can usually only screen a single size. For multi-level and graded aquaculture, fish fry need to be transferred and nets changed multiple times. The operation process is lengthy and prone to damage to fish fry due to repeated fishing. The collection efficiency is low and the cost is high. Traditional screening often involves manually stirring the water or directly fishing and driving fish, which causes strong stress to the fish fry. Furthermore, the friction of the nets can cause mechanical damage such as scale loss and mucus loss, affecting the subsequent growth and survival rate of the fish fry.

[0005] To address the aforementioned technical shortcomings, a solution is proposed. Utility Model Content

[0006] The purpose of this invention is to provide a fish fry sorting net box structure to solve the problem mentioned above.

[0007] The purpose of this utility model can be achieved through the following technical solution: a fish fry screening net box structure, including a top box frame, a support rod is provided through the four corners of the top box frame, a bottom box frame is provided at the bottom of the support rod, a barrier net is provided between the bottom box frame and the top box frame, and cross frames are symmetrically provided at the top of both ends of the top box frame, and a screening mechanism is provided at the top of the cross frames and slidably connected to the top box frame.

[0008] The sieving mechanism includes a storage bin and a slide. Guide frames are symmetrically arranged on both sides of the bottom of the slide. A screen is arranged on the frame of the guide frame near the storage bin. Magnetic strips and counterweights are arranged at both ends of the screen at the bottom of the guide frame.

[0009] Preferably, the inner wall of the top box frame is symmetrically provided with slide rails that slide and engage with the slide frame, and the inner wall of the bottom box frame is provided with mesh grooves symmetrical to the slide rails.

[0010] Preferably, the barrier net is arranged in a square shape, with symmetrical slots at the four corners for connecting with the support rods, and a bottom net that is snapped into the slot of the bottom net, with the same mesh diameter as the barrier net.

[0011] Preferably, the top of the support rod is provided with a limiting buckle that fits into the top box frame, and the top of both sides of the bottom box frame are provided with concave frames close to the screen. A magnetic plate is provided at one end of the concave frame near the screening mechanism, and an extension plate is provided at the bottom of the magnetic plate away from the screening mechanism. The bottom of the extension plate is close to the bottom screen.

[0012] Preferably, a take-up roller is rotatably sleeved inside the storage compartment, and guide rollers arranged in a triangular pattern are provided inside the storage compartment. A traction rope passing through the inner wall of the guide frame is provided on the surface of the guide rollers.

[0013] Preferably, the bottom of the traction rope is engaged with the counterweight frame, the inner walls on both sides of the guide frame are provided with guide grooves, and the counterweight frame is provided with rubber wheels on both sides that are in contact with the inner walls of the guide grooves.

[0014] The beneficial effects of this utility model are:

[0015] (1) This utility model achieves targeted adjustment of aperture through replaceable screens, barriers and bottom nets, and can perform multi-level precise screening according to the size of fish fry and breeding needs, meet the graded breeding requirements of fish fry of different sizes, and flexibly adapt to and precisely screen; with the sliding drive of the movable screening mechanism and the quick disassembly and assembly design of magnetic strip adsorption, the swimming space inside the net cage is dynamically reduced, which forces the fish fry to swim and pass through the corresponding aperture net, greatly reducing manual intervention, improving screening efficiency, and mechanized screening and efficient operation.

[0016] (2) This utility model achieves the sealing and limiting of the net cage by moving the baffle in the pool during the screening process, combined with the non-contact fish driving method of water flow agitation, avoiding direct physical damage to the fish fry by manual operation; the staged screening reduces the stress response caused by multiple transfers, improves the survival rate of fish fry, and protects and controls the stress of fish fry.

[0017] (3) The present invention achieves automated diversion and collection of fish fry of different sizes by using a multi-level collection area preset in the pool and the opening and closing control of the moving baffle, avoiding the tedious process of manual sorting and the risk of cross-contamination in traditional sieving, and grading collection and process simplification. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings;

[0019] Figure 1 This is a three-dimensional view of the overall structure of this utility model;

[0020] Figure 2 This is a structural schematic diagram of the top box frame and support rod of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the support rod and the base frame of this utility model;

[0022] Figure 4 This is a schematic diagram of the sieving mechanism of this utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the guide frame of this utility model;

[0024] Figure 6 This is a schematic diagram of the winding roller structure of this utility model.

[0025] Legend: 1. Top box frame; 101. Horizontal frame; 102. Slide rail; 2. Sieving mechanism; 201. Storage bin; 202. Slide frame; 203. Counterweight frame; 204. Guide frame; 205. Traction rope; 206. Magnetic strip; 207. Guide roller; 208. Rewinding roller; 3. Screen; 4. Bottom box frame; 401. Mesh slot; 5. Barrier net; 501. Bottom net; 6. Support rod; 601. Limiting buckle; 7. Concave frame; 701. Magnetic plate; 702. Extension plate. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1: Please refer to Figure 1 - Figure 6 As shown, this embodiment is a fish fry screening cage structure, including a top box frame 1, with support rods 6 running through the four corners of the top box frame 1, a bottom box frame 4 at the bottom of the support rods 6, a barrier net 5 between the bottom box frame 4 and the top box frame 1, and cross frames 101 symmetrically arranged at the top of both ends of the top box frame 1, with a screening mechanism 2 slidably connected to the top box frame 1 at the top of the cross frames 101.

[0028] According to the needs of fish fry rearing, the fish fry are poured into the net cage. Depending on the size of the fish fry and the screening specifications, the appropriate screen 3, barrier net 5 and bottom net 501 are replaced in advance. The mesh size of barrier net 5 and bottom net 501 can be moderate as needed, and the mesh size of screen 3 can be the smallest.

[0029] The inner wall of the top box frame 1 is symmetrically provided with slide rails 102 that are slidably connected to the slide 202, and the inner wall of the bottom box frame 4 is provided with mesh slots 401 that are symmetrical to the slide rails 102.

[0030] The net cage is placed in the pool waiting for screening. The pool is equipped with a movable baffle to limit and fix the net cage. Before the screen 3 removes the smallest fish fry, it keeps the net cage sealed around its sides and bottom, waiting for the screening mechanism 2 to start. By sliding the screening mechanism 2, the slide 202 is moved along the slide rail 102. The slide rail 102 drives the guide frame 204. The guide frame 204 is attracted to the magnetic plate 701 through the magnetic strip 206. It should be noted that the two can be replaced with a bolt-connected fixing plate as needed.

[0031] The barrier net 5 is arranged in a square shape. The four corners of the barrier net 5 are symmetrically provided with sleeves that fit into the support rods 6. The bottom of the barrier net 5 is provided with a bottom net 501 that is snapped into the mesh groove 401. The bottom net 501 and the barrier net 5 have the same mesh diameter.

[0032] Example 2: A fish fry sorting net box structure of this example includes a sorting mechanism 2 including a storage bin 201 and a slide 202. Guide frames 204 are symmetrically arranged on both sides of the bottom of the slide 202. A screen 3 is arranged on the frame of the guide frame 204 near the storage bin 201. Magnetic strips 206 and counterweight frames 203 are arranged at both ends of the screen 3 at the bottom of the guide frame 204.

[0033] The screen 3 moves along with the sorting mechanism 2, rapidly reducing the swimming space inside the net cage, causing the fish fry to be startled and swim away. Smaller fish fry pass through the screen 3 and enter the sorted area. After the initial sorting has progressed to a certain extent, a thin plate is inserted into the net cage along the end face of the slide 202. The movable baffle on the outside of the net cage near the sorting mechanism 2 is opened. After the sorting mechanism 2 returns to its original position, the smaller fish fry that have passed through the screen 3 are pushed close to the barrier net 5. Without the obstruction of the movable baffle, the smaller fish fry pass through the barrier net 5 and are collected in the smaller fish fry collection area divided in the pool.

[0034] The top of the support rod 6 is provided with a limiting buckle 601 that is sleeved with the top box frame 1. The top of both sides of the bottom box frame 4 is provided with a concave frame 7 near the screen 5. A magnetic plate 701 is provided at one end of the concave frame 7 near the screening mechanism 2. An extension plate 702 is provided at the bottom of the magnetic plate 701 away from the screening mechanism 2. The bottom of the extension plate 702 is close to the bottom screen 501. An insertion port is provided on one side of the outer wall of the take-up roller 208. The insertion port is used to connect with an externally adapted rotating tool for rotating the take-up roller 208.

[0035] Fish fry that do not pass through screen 3 remain inside the net cage. Open the movable baffle at the end of the net cage away from the sorting mechanism 2, move the sorting mechanism 2 again, and at the same time stir the water inside the net cage or use a water pipe to inject a water column into the net cage, causing the retained fish fry to be frightened. Some of the fish fry that can pass through the barrier net 5 enter the medium-sized fish fry collection area in the pool.

[0036] The storage compartment 201 is fitted with a take-up roller 208, and the storage compartment 201 is provided with guide rollers 207 arranged in a triangular pattern. The surface of the guide rollers 207 is provided with a traction rope 205 that passes through the inner wall of the guide frame 204.

[0037] The bottom of the traction rope 205 is engaged with the counterweight frame 203. The inner walls of both sides of the guide frame 204 are provided with guide grooves. The counterweight frame 203 is provided with rubber wheels that are in contact with the inner walls of the guide grooves. The larger fish fry that are stuck inside the net cage are moved out along with the net cage and the fish fry are poured into the larger fish fry collection container.

[0038] Combining Embodiments 1 and 2, the net cage structure achieves flexible aperture adaptation through replaceable screens 3, barriers 5, and bottom nets 501, enabling multi-level precise screening of fish fry according to size. The mechanized screening mechanism 2 drives the dynamic reduction of the space within the net cage, using a non-contact fish-driving method to guide the fish fry through the corresponding aperture nets according to their specifications, significantly reducing manual intervention and improving screening efficiency. During the screening process, the pool baffles limit and seal the process. Combined with a staged and graded collection design, this avoids the physical damage and repeated transfer stress of traditional manual operations. Simultaneously, the automated collection area division simplifies the process, reduces the risk of cross-contamination, and achieves efficient, precise, and protective fish fry grading and screening operations.

[0039] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the invention or exceed the scope defined in the claims, all of which should fall within the protection scope of the present invention.

[0040] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0041] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A fish fry sorting net cage structure, comprising a top frame (1), characterized in that, The top box frame (1) is provided with support rods (6) through its four corners. The bottom box frame (4) is provided at the bottom of the support rods (6). A net (5) is provided between the bottom box frame (4) and the top box frame (1). Horizontal frames (101) are symmetrically provided at the top of both ends of the top box frame (1). A screening mechanism (2) that slides and fits into the top box frame (1) is provided at the top of the horizontal frame (101). The sieving mechanism (2) includes a storage bin (201) and a slide (202). Guide frames (204) are symmetrically arranged on both sides of the bottom of the slide (202). A screen (3) is arranged on the frame of the guide frame (204) near the storage bin (201). Magnetic strips (206) and counterweight frames (203) are arranged at both ends of the screen (3) at the bottom of the guide frame (204).

2. The fish fry sorting net cage structure according to claim 1, characterized in that, The inner wall of the top box frame (1) is symmetrically provided with slide rails (102) that are slidably connected to the slide frame (202), and the inner wall of the bottom box frame (4) is provided with mesh grooves (401) that are symmetrical to the slide rails (102).

3. The fish fry sorting net box structure according to claim 2, characterized in that, The barrier net (5) is arranged in a square shape. The four corners of the barrier net (5) are symmetrically provided with sleeves that can be connected to the support rod (6). The bottom of the barrier net (5) is provided with a bottom net (501) that is snapped into the mesh slot (401).

4. The fish fry sorting net box structure according to claim 1, characterized in that, The top of the support rod (6) is provided with a limiting buckle (601) that is sleeved with the top box frame (1). The top of both sides of the bottom box frame (4) is provided with a concave frame (7) near the screen (5). A magnetic plate (701) is provided at one end of the concave frame (7) near the screening mechanism (2). An extension plate (702) is provided at the bottom of the magnetic plate (701) away from the screening mechanism (2).

5. The fish fry sorting net box structure according to claim 1, characterized in that, The storage compartment (201) is rotatably fitted with a take-up roller (208), and the storage compartment (201) is provided with guide rollers (207) arranged in a triangular pattern. The surface of the guide rollers (207) is provided with a traction rope (205) that passes through the inner wall of the guide frame (204).

6. The fish fry sorting net box structure according to claim 5, characterized in that, The bottom of the traction rope (205) is engaged with the counterweight frame (203), and the inner walls of both sides of the guide frame (204) are provided with guide grooves. The counterweight frame (203) is provided with rubber wheels on both sides that are in contact with the inner walls of the guide grooves.

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