Large net cage fish catching and gathering device

Abstract

The utility model discloses a large net cage fish catching and gathering device, and relates to the technical field of large net cage culture equipment, the large net cage fish catching and gathering device comprises a net cage main body, the net cage main body comprises a lower annular fixing frame and an upper annular fixing frame, and the lower annular fixing frame and the upper annular fixing frame are fixedly connected through a plurality of groups of supporting columns which are distributed at equal intervals. The driving motor is started to drive the connecting block and the connecting rod to rotate, so that the rotating rod fixed to the connecting rod is driven to start to rotate with the fixing column as the rotating center, and at the moment, the sliding block slides in the annular movable cavities formed in the lower annular fixing frame and the upper annular fixing frame; according to the fish gathering assembly, the fishing efficiency of workers is greatly improved, meanwhile, a large amount of labor force is also saved, and time and labor are also saved, so that the fishing net between the two rotating rods is driven to start to rotate in the net cage main body, the moving range of fish schools in the net cage main body is narrowed in cooperation with the fixed blocking net, and fishing is completed in cooperation with the collecting assembly.

Description

Technical Field

[0001] This utility model relates to the technical field of large-scale cage aquaculture equipment, specifically a large-scale cage fish-catching and gathering device. Background Technology

[0002] With the rapid development of my country's marine aquaculture industry, the expansion of marine aquaculture from nearshore to offshore and deep-sea areas has become an inevitable trend. In recent years, large-scale truss-type deep-sea aquaculture cages have developed rapidly in my country, which is of great significance for expanding aquaculture areas, reducing environmental pressure, protecting and regulating the structure of marine aquaculture species, and promoting scientific deep-sea aquaculture. However, my country lags behind in the research and development of supporting facilities for cage aquaculture, among which the development of fish harvesting devices for cage aquaculture is one of the key supporting technologies that urgently needs to be solved.

[0003] Traditional cage aquaculture relies on manual fishing, which is difficult, inefficient, and limits the catch. This is especially true for large cages of 100,000 cubic meters or more, where fishing becomes even more challenging. Current technology often uses rotating nets for mechanical hauling, but this method is only suitable for circular cages. Furthermore, because it cannot achieve layered hauling, it draws live fish from the colder deep water layers to the warmer shallow water layers, resulting in a high mortality rate of live fish during the hauling process. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a large-scale net cage fish-catching and gathering device to solve the technical problems mentioned in the background.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a large net cage fish-gathering device, comprising a net cage body, the net cage body including a lower annular fixing frame and an upper annular fixing frame, the lower annular fixing frame and the upper annular fixing frame being fixedly connected by several sets of equidistantly distributed support columns, a side net being installed between each pair of adjacent support columns, a cross-shaped fixing frame being fixedly connected to the bottom of the lower annular fixing frame, a bottom net being installed between the cross-shaped fixing frame and the inner side of the lower annular fixing frame, a fish-gathering component being provided inside the net cage body, and several collection components being provided on the outer side of the top of the net cage body;

[0006] The fish-attracting component includes a fixed column fixedly installed at the center of the upper surface of the cross-shaped fixing frame. A drive motor is fixedly installed on the top of the fixed column. A connecting block is fixedly connected to the output end of the drive motor. A connecting rod is fixedly installed on one side of the connecting block. A rotating rod is fixedly connected to the other end of the connecting rod. The rotating rod has two sets located at the upper and lower ends of the outer wall of the fixed column, and the two sets of rotating rods are fixedly connected by a fixed rod. A slider is fixedly connected to the end of the rotating rod away from the fixed column. Both the lower and upper annular fixing frames have annular movable chambers that match the sliders. The sliders are slidably connected to the annular movable chambers. A trapping net is installed between the two sets of rotating rods. A blocking net is fixedly installed between the inner side of the lower and upper annular fixing frames and the outer wall of the fixed column.

[0007] As a preferred technical solution of the large net cage fish-catching device of this utility model, the upper and lower ends of the outer wall of the fixed column are provided with annular grooves, and the upper and lower ends of the annular grooves are provided with sliding grooves. The rotating rod is fixedly connected to a rotating ring at one end near the fixed column. The rotating ring is fitted into the annular groove. Several sets of first balls that are equally distributed and match the sliding grooves are installed on the upper and lower surfaces of the rotating ring. The first balls are slidably connected to the sliding grooves.

[0008] As a preferred technical solution of the large net cage fish-catching and gathering device of this utility model, the upper and lower surfaces of the slider are both equipped with second balls, and the upper and lower ends of the annular movable chamber are both provided with annular grooves that match the second balls, and the second balls are slidably connected to the annular grooves.

[0009] As a preferred technical solution of the large net cage fish collection device of this utility model, the collection component includes an opening in the side net, and a fixed frame is fixedly connected to the outside of the opening. A fish guide net is fixedly connected to one end of the fixed frame away from the side net, and a fish collection box is fixedly installed at the other end of the fish guide net.

[0010] As a preferred technical solution of the large net cage fish-catching and gathering device of this utility model, an electrically controlled valve is installed inside the fixed frame.

[0011] As a preferred technical solution of the large net cage fish-catching and gathering device of this utility model, the side net has a total of six sets of openings, of which three sets of openings are located at the upper end of the side net and the other three sets of openings are located at the lower end of the side net, and are arranged at intervals of one above the other.

[0012] As a preferred technical solution of the large net cage fish gathering device of this utility model, floats are installed on the outer side of the fish gathering box and the upper ring fixing frame.

[0013] In summary, the present invention has the following main advantages:

[0014] 1. This utility model starts the drive motor, and the output end of the drive motor drives the connecting block and the connecting rod to rotate, thereby driving the rotating rod fixed to the connecting rod to start rotating around the fixed column as the rotation center. At this time, the slider slides in the annular movable chamber opened in the lower annular fixed frame and the upper annular fixed frame, thereby driving the net between the two sets of rotating rods to start rotating in the net cage body. With the help of the fixed blocking net, the activity range of the fish in the net cage body is reduced, and the collection component completes the harvesting. Through this fish gathering component, the harvesting efficiency of the staff is greatly improved, and a lot of labor is saved, saving time and effort.

[0015] 2. The utility model utilizes the rotation of the trapping net inside the net cage body to open the electrically controlled valves in the openings at the upper and lower ends of the net cage body. At this time, the fish living and distributed in the upper layer of the net cage body swim out from the upper opening and enter the fish collection box through the fish guide net, while the fish living and distributed in the lower layer of the net cage body enter the fish collection box through the fish guide net from the lower opening. On the one hand, it drives the fish into the fish collection box, making it easier for the staff to catch them and further improving the efficiency of the staff's harvesting. On the other hand, it can achieve the effect of stratified harvesting, thereby improving the survival rate of live fish. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a partial structural diagram of the fish-gathering component of this utility model;

[0018] Figure 3 This is a schematic diagram of the rotating ring structure of this utility model;

[0019] Figure 4 This is a partial sectional view of the upper annular fixing frame of this utility model;

[0020] Figure 5 This is a schematic diagram of the collection component structure of this utility model.

[0021] In the diagram: 100, main body of the net cage; 200, fish-attracting component; 300, collection component;

[0022] 110. Lower ring-shaped fixing frame; 120. Upper ring-shaped fixing frame; 130. Support column; 140. Side net; 150. Cross-shaped fixing frame; 160. Bottom net;

[0023] 210. Fixed post; 220. Drive motor; 230. Connecting block; 240. Connecting rod; 250. Rotating rod; 251. Rotating ring; 252. First ball bearing; 253. Fixed rod; 260. Sliding block; 261. Second ball bearing; 270. Annular movable chamber; 271. Annular groove; 280. Netting cover; 290. Barrier net;

[0024] 310. Fixed frame; 320. Fish guide net; 330. Fish collection box. Detailed Implementation

[0025] 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.

[0026] The embodiments of this utility model will be described below based on its overall structure.

[0027] A large net cage fish-catching and gathering device, such as Figure 1-5 As shown, the net cage includes a main body 100, which includes a lower annular fixing frame 110 and an upper annular fixing frame 120. The lower annular fixing frame 110 and the upper annular fixing frame 120 are fixedly connected by several sets of equidistantly distributed support columns 130. A side net 140 is installed between each pair of adjacent support columns 130. A cross-shaped fixing frame 150 is fixedly connected to the bottom of the lower annular fixing frame 110. A bottom net 160 is installed between the cross-shaped fixing frame 150 and the inner side of the lower annular fixing frame 110. A fish-gathering component 200 is provided inside the net cage main body 100, and several collection components 300 are provided on the outer side of the top of the net cage main body 100. The fish-gathering component 200 includes a fixing column 210 fixedly installed at the center of the upper surface of the cross-shaped fixing frame 150. A drive motor 220 is fixedly installed on the top of the fixing column 210. A connecting block 230 is fixedly connected to the output end of the machine 220. A connecting rod 240 is fixedly installed on one side of the connecting block 230. A rotating rod 250 is fixedly connected to the other end of the connecting rod 240. There are two sets of rotating rods 250 located at the upper and lower ends of the outer wall of the fixed column 210, and the two sets of rotating rods 250 are fixedly connected by a fixed rod 253. A slider 260 is fixedly connected to the end of the rotating rod 250 away from the fixed column 210. Both the lower annular fixed frame 110 and the upper annular fixed frame 120 have annular movable chambers 270 that match the slider 260. The slider 260 is slidably connected to the annular movable chambers 270. A trapping net 280 is installed between the two sets of rotating rods 250. A blocking net 290 is fixedly installed between the inner side of the lower annular fixed frame 110 and the upper annular fixed frame 120 and the outer wall of the fixed column 210.

[0028] When harvesting is needed, the drive motor 220 is started. The output end of the drive motor 220 drives the connecting block 230 and the connecting rod 240 to rotate, thereby causing the rotating rod 250, which is fixed to the connecting rod 240, to start rotating around the fixed column 210 as the rotation center. At this time, the slider 260 slides in the annular movable chamber 270 opened in the lower annular fixed frame 110 and the upper annular fixed frame 120, thereby causing the catching net 280 between the two sets of rotating rods 250 to start rotating stably in the net cage body 100. With the help of the fixed blocking net 290, the activity range of the fish in the net cage body 100 is reduced. With the help of the collection component 300, the harvesting is completed. Through this fish gathering component 200, the harvesting efficiency of the staff is greatly improved, and a lot of labor is saved, saving time and effort.

[0029] Please refer to this carefully. Figure 2 and Figure 3 As shown, the upper and lower ends of the outer wall of the fixed column 210 are provided with annular grooves, and the upper and lower ends of the annular grooves are provided with sliding grooves. The end of the rotating rod 250 near the fixed column 210 is fixedly connected to a rotating ring 251. The rotating ring 251 is fitted into the annular groove. Several sets of first balls 252 that are equidistantly distributed and match the sliding grooves are installed on the upper and lower surfaces of the rotating ring 251. The first balls 252 are slidably connected to the sliding grooves.

[0030] By having the rotating ring 251 fitted into the ring groove and rotating, the stability of the net 280's rotation is improved. At the same time, by setting the first ball 252 to slide in the sliding groove, the friction between the rotating ring 251 and the fixed column 210 during rotation is reduced, thereby reducing the wear of the rotating ring 251 and the fixed column 210 and improving the service life of the device.

[0031] Please refer to this carefully. Figure 4 As shown, the upper and lower surfaces of the slider 260 are equipped with second balls 261, and the upper and lower ends of the annular movable chamber 270 are provided with annular grooves 271 that match the second balls 261. The second balls 261 are slidably connected to the annular grooves 271.

[0032] By setting the second ball 261 to slide in the annular groove 271, the friction between the slider 260 and the lower annular fixed frame 110 and the upper annular fixed frame 120 is reduced, thereby reducing the wear of the slider 260 and the lower annular fixed frame 110 and the upper annular fixed frame 120, and further improving the service life of the device.

[0033] Please refer to this carefully. Figure 1 and Figure 5As shown, the collection component 300 includes an opening on the side net 140, and a fixed frame 310 is fixedly connected to the outside of the opening. A fish guide net 320 is fixedly connected to one end of the fixed frame 310 away from the side net 140, and a fish collection box 330 is fixedly installed at the other end of the fish guide net 320. An electric control valve is installed inside the fixed frame 310. There are a total of six sets of openings on the side net 140, of which three sets of openings are located at the upper end of the side net 140 and the other three sets of openings are located at the lower end of the side net 140, and are arranged alternately at the top and bottom. Floats are installed on the outside of the fish collection box 330 and the upper annular fixing frame 120.

[0034] As the catching net 280 rotates inside the main body of the net cage 100, the electrically controlled valves in the upper and lower openings of the main body of the net cage 100 are opened. At this time, the fish living and distributed in the upper layer of the main body of the net cage 100 swim out from the upper opening of the main body of the net cage 100 and enter the fish collection box 330 through the fish guide net 320. Meanwhile, the fish living and distributed in the lower layer of the main body of the net cage 100 enter the fish collection box 330 from the lower opening of the main body of the net cage 100 through the fish guide net 320. On the one hand, the fish are driven into the fish collection box 330, which makes it easier for the staff to catch them and further improves the efficiency of the staff to catch them. On the other hand, it can achieve the effect of stratified catching, thereby improving the survival rate of live fish. The fish collection box 330 and the main body of the net cage 100 float on the sea surface by buoys.

[0035] In use, the drive motor 220 is started, and the output end of the drive motor 220 drives the connecting block 230 and the connecting rod 240 to rotate, thereby causing the rotating rod 250 fixed to the connecting rod 240 to start rotating around the fixed column 210 as the rotation center. At this time, the slider 260 slides in the annular movable chamber 270 opened in the lower annular fixed frame 110 and the upper annular fixed frame 120, thereby causing the catching net 280 between the two sets of rotating rods 250 to start rotating stably in the net cage body 100. With the help of the fixed blocking net 290, the activity range of the fish in the net cage body 100 is reduced. With the help of the collection component 300, the harvesting is completed. Through this fish gathering component 200, the harvesting efficiency of the staff is greatly improved, and a lot of labor is saved, saving time and effort. The parts not mentioned in this device are the same as or can be implemented by existing technology.

[0036] 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. A large-scale fish-catching and gathering device for net cages, comprising a net cage body (100), characterized in that: The main body of the net cage (100) includes a lower annular fixing frame (110) and an upper annular fixing frame (120). The lower annular fixing frame (110) and the upper annular fixing frame (120) are fixedly connected by several sets of equally spaced support columns (130). A side net (140) is installed between each two adjacent sets of support columns (130). A cross-shaped fixing frame (150) is fixedly connected to the bottom of the lower annular fixing frame (110). A bottom net (160) is installed between the cross-shaped fixing frame (150) and the inner side of the lower annular fixing frame (110). A fish-gathering component (200) is provided inside the main body of the net cage (100). Several collection components (300) are provided on the outer side of the top of the main body of the net cage (100). The fish-attracting component (200) includes a fixed post (210) fixedly installed at the center of the upper surface of the cross-shaped fixing frame (150). A drive motor (220) is fixedly installed on the top of the fixed post (210). A connecting block (230) is fixedly connected to the output end of the drive motor (220). A connecting rod (240) is fixedly installed on one side of the connecting block (230). A rotating rod (250) is fixedly connected to the other end of the connecting rod (240). The rotating rod (250) has two sets located at the upper and lower ends of the outer wall of the fixed post (210), and the two sets of rotating rods (250) are connected by a fixed rod (210). 253) Fixed connection: A slider (260) is fixedly connected to one end of the rotating rod (250) away from the fixed column (210). Both the lower annular fixed frame (110) and the upper annular fixed frame (120) are provided with annular movable chambers (270) that match the slider (260). The slider (260) is slidably connected to the annular movable chambers (270). A trapping net (280) is installed between the two sets of rotating rods (250). A blocking net (290) is fixedly installed between the inner side of the lower annular fixed frame (110) and the upper annular fixed frame (120) and the outer wall of the fixed column (210).

2. The large-scale net cage fish-catching and aggregating device according to claim 1, characterized in that: The upper and lower ends of the outer wall of the fixed column (210) are provided with annular grooves, and the upper and lower ends of the annular grooves are provided with sliding grooves. The rotating rod (250) is fixedly connected to a rotating ring (251) at one end near the fixed column (210). The rotating ring (251) is fitted into the annular groove. Several sets of first balls (252) that are equally distributed and match the sliding grooves are installed on the upper and lower surfaces of the rotating ring (251). The first balls (252) are slidably connected to the sliding grooves.

3. The large-scale net cage fish-catching and aggregating device according to claim 1, characterized in that: The upper and lower surfaces of the slider (260) are each equipped with a second ball bearing (261), and the upper and lower ends of the annular movable chamber (270) are each provided with an annular groove (271) that matches the second ball bearing (261). The second ball bearing (261) is slidably connected to the annular groove (271).

4. The large-scale net cage fish-catching and aggregating device according to claim 1, characterized in that: The collection component (300) includes an opening in the side net (140), and a fixed frame (310) is fixedly connected to the outside of the opening. A fish guide net (320) is fixedly connected to one end of the fixed frame (310) away from the side net (140), and a fish collection box (330) is fixedly installed at the other end of the fish guide net (320).

5. A large net cage fish-catching and gathering device according to claim 4, characterized in that: An electrically controlled valve is installed inside the fixed frame (310).

6. A large-scale net cage fish-catching and aggregating device according to claim 1, characterized in that: The side net (140) has a total of six sets of openings, three of which are located at the upper end of the side net (140) and the other three are located at the lower end of the side net (140), and are arranged at intervals of one above the other.

7. A large net cage fish-catching and gathering device according to claim 4, characterized in that: The fish collection box (330) and the outer side of the upper ring fixing frame (120) are both equipped with floats.

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