Deepwater net cage culture cover net

Abstract

The invention discloses a deepwater net cage culture cover net, and relates to the technical field of mariculture. The top of the net cage is provided with a cover net, the bottom of which is fixedly provided with a stretching assembly. Sliding barrels fixed to the periphery of a limiting block are driven to slide up and down along two arc-shaped supporting plates, a second rotating plate frame, a third rotating plate frame and a sixth rotating plate frame are arranged in parallel, a first rotating plate frame, a fourth rotating plate frame and a fifth rotating plate frame are arranged in parallel, and when the sliding barrels slide to the tops of the two arc-shaped supporting plates, the sliding barrels are driven to slide up and down along the two arc-shaped supporting plates; the cover net can be opened, the cover net does not need to be opened manually, and the efficiency of installing the cover net on the net cage is improved; and the edge of the cover net can be buckled on the inner sides of the buckle plate and the hook-shaped plate through separation or mutual attachment of the buckle plate and the inner side of the hook-shaped plate, so that disassembly and assembly of the cover net are achieved and achieved, falling of the cover net is avoided, and the use strength of the device is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of marine aquaculture, and in particular relates to a deep-water cage aquaculture cover net. Background Art

[0002] Large cages set up in coastal open waters with a water depth of more than 15 meters are called deep-water cages. Deep-water cages can be used to culture large yellow croaker. Deep-water cages have a large aquaculture capacity and are offshore aquaculture facilities with strong resistance to wind, waves and currents. Deep-water cages have shown obvious advantages in expanding aquaculture areas, reducing coastal environmental pressure, improving the quality of farmed fish, and increasing aquaculture benefits.

[0003] During use, the existing deep-water cages need to manually open the cover net and fix the edge of the cover net to the top of the cage. It is not easy to open the cover net manually, which reduces the installation efficiency of the deep-water cage. In addition, the cover net installed on the top of the cage is easy to fall off, reducing the use strength of the device. Summary of the invention

[0004] The object of the present invention is to provide a deep-water cage aquaculture cover net, which achieves and realizes the opening of the cover net through the parallel arrangement of the second rotating plate frame, the third rotating plate frame and the sixth rotating plate frame, and the parallel arrangement of the first rotating plate frame, the fourth rotating plate frame and the fifth rotating plate frame. The edge of the cover net can be snapped onto the inner side of the snap plate and the hook plate through the separation or mutual fitting of the snap plate and the inner side of the hook plate, which solves the problem that the existing deep-water cage needs to be manually opened and the edge of the cover net fixedly installed to the top of the cage during use. It is not easy to manually open the cover net, which reduces the installation efficiency of the deep-water cage. In addition, the cover net installed on the top of the cage is easy to fall off.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention discloses a deep-water cage aquaculture cover net, comprising a cage; a cover net is arranged on the top of the cage, and a stretching component is fixedly installed on the bottom of the cover net.

[0007] The stretching assembly includes a plurality of first rotating plate frames, a side surface of the first rotating plate frame is rotatably engaged with a first rotating shaft, an inner wall of the first rotating plate frame is rotatably engaged with a second rotating shaft, a peripheral side surface of the second rotating shaft is located on the inner wall of the first rotating plate frame and is rotatably engaged with the second rotating plate frame, a side surface of the first rotating plate frame is rotatably engaged with a third rotating shaft, a peripheral side surface of the third rotating shaft is located on the outer side of the first rotating plate frame and is rotatably engaged with the third rotating plate frame, and an inner wall of the third rotating plate frame is rotatably engaged with a fourth rotating shaft.

[0008] The peripheral side surface of the fourth rotating shaft is located on the inner wall of the third rotating plate frame and is rotatably engaged with the fourth rotating plate frame, a side surface of the second rotating plate frame is rotatably engaged with the fifth rotating shaft, a side surface of the third rotating plate frame is rotatably engaged with the sixth rotating shaft, the fifth rotating plate frame is rotatably engaged between the fifth rotating shaft and the sixth rotating shaft, a side surface of the fourth rotating plate frame is rotatably engaged with the seventh rotating shaft, a side surface of the fifth rotating plate frame is rotatably engaged with the eighth rotating shaft, and the sixth rotating plate frame is rotatably engaged between the seventh rotating shaft and the eighth rotating shaft.

[0009] The present invention is further configured such that the stretching assembly also includes an installation dome plate, which is fixedly installed at the center position of the bottom of the cover net; a plurality of groups of first limit baffles are fixed on the circumferential side of the installation dome plate, and the number of the first limit baffles in each group is two, and each group of the first limit baffles rotates with the first rotating shaft.

[0010] A side surface of the sixth rotating plate frame is rotatably matched with a limiting shaft, and the side surfaces around the limiting shaft are located on both sides of the sixth rotating plate frame and are rotatably matched with second limiting baffles, and the second limiting baffles are fixedly installed at the bottom of the cover net.

[0011] The present invention is further configured such that two symmetrical arc-shaped support plates are fixed at the bottom of the mounting dome plate, and a slide cylinder is slidably fitted on the peripheral side surfaces of the two arc-shaped support plates, and a plurality of groups of traction baffles are fixed on the peripheral side surfaces of the slide cylinder, and the number of traction baffles in each group is two, and a traction shaft is rotatably fitted in each group of traction baffles, and the traction shaft is rotatably fitted with the third rotating plate frame, and a limiting bottom plate is fixed at the bottom of the two arc-shaped support plates.

[0012] The present invention is further configured such that a motor is fixedly mounted on the bottom of the mounting dome plate between the two arc-shaped support plates, a threaded rod is fixedly connected to the output end of the motor, and the bottom of the threaded rod is rotatably matched with the top of the limiting bottom plate.

[0013] The present invention is further configured such that a limiting block is fixed on the inner wall of the slide cylinder, the limiting block is slidably matched with the two arc-shaped support plates, and the limiting block is threadedly matched with the threaded rod.

[0014] The present invention is further configured such that an annular sinker is provided on the outer top of the net box, an annular float is provided on the outer top of the net box, a plurality of buckle assemblies are fixedly installed on the top of the annular float, and the buckle assemblies are buckled with the edge of the cover net.

[0015] The present invention is further configured such that the snap assembly includes a mounting plate, the mounting plate is fixedly mounted on the top of the annular float, a connecting rod is fixed on the top of the mounting plate, a hollow shell is fixed on the top of the connecting rod, two central shafts are fixed on the inner wall of the hollow shell, and the peripheral sides of the two central shafts are respectively rotatably matched with a driving gear and a driven gear.

[0016] The present invention is further configured such that an arc-shaped hole is opened on one side of the hollow shell, and a toggle rod is fixed on one side of the driving gear inside the arc-shaped hole.

[0017] A limiting hole is arranged on the outer top of the hollow shell, and a snap plate is fixed on the peripheral side surface of the driven gear in the limiting hole.

[0018] A hook-shaped plate is fixed on the outer top of the hollow shell, the buckle plate and the inner side of the hook-shaped plate are fitted to each other, and the edge of the cover net is buckled on the buckle plate and the inner side of the hook-shaped plate.

[0019] The present invention has the following beneficial effects:

[0020] 1. The present invention starts the motor installed at the bottom of the dome plate between the two arc-shaped support plates in a positive or reverse direction, so that the threaded rod rotates and cooperates with the top of the limit bottom plate, driving the limit block with threads on the peripheral side of the threaded rod to slide up and down between the two arc-shaped support plates, so that the slide cylinder fixed around the limit block slides up and down along the two arc-shaped support plates, and passes through the parallel arrangement of the second rotating plate frame, the third rotating plate frame and the sixth rotating plate frame, and the parallel arrangement of the first rotating plate frame, the fourth rotating plate frame and the fifth rotating plate frame. When the slide cylinder slides to the top of the two arc-shaped support plates, the cover net can be opened without manual opening of the cover net, thereby improving the efficiency of installing the cover net on the net box.

[0021] 2. The present invention rotates the toggle rod located in the arc-shaped hole opened on one side of the hollow shell counterclockwise or clockwise, so that the driving gear that rotates with the inner wall of the hollow shell rotates counterclockwise or clockwise, driving the driven gear that meshes with the driving gear to rotate clockwise or counterclockwise, so that the snap plate fixed in the limiting hole on the peripheral side of the driven gear rotates clockwise or counterclockwise with the central axis as the center, thereby achieving and realizing the separation or mutual fitting of the snap plate and the inner side of the hook plate, and being able to snap the edge of the cover net on the snap plate and the inner side of the hook plate, thereby achieving and realizing the disassembly and installation of the cover net, avoiding the cover net from falling off, and improving the use strength of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0023] Figure 1 The present invention is a structural schematic diagram of a cover net for deep-water cage aquaculture.

[0024] Figure 2 for Figure 1 A is an enlarged schematic diagram.

[0025] Figure 3 It is a schematic diagram of the structure of the stretching component.

[0026] Figure 4 for Figure 3 A magnified schematic diagram of B.

[0027] Figure 5 for Figure 3 An enlarged schematic diagram of .

[0028] Figure 6 It is a schematic diagram of the structure of the first rotating plate frame and the sixth rotating plate frame.

[0029] Figure 7 It is a structural schematic diagram of the buckle assembly.

[0030] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0031] 1-net box, 2-cover net, 3-stretching assembly, 4-buckle assembly, 101-annular sinker, 102-annular float, 301-first rotating plate frame, 302-first rotating shaft, 303-second rotating shaft, 304-second rotating plate frame, 305-third rotating shaft, 306-third rotating plate frame, 307-fourth rotating shaft, 308-fourth rotating plate frame, 309-fifth rotating shaft, 310-sixth rotating shaft, 311-fifth rotating plate frame, 312-seventh rotating shaft, 313-eighth rotating shaft, 314-sixth rotating plate frame, 315-install dome plate, 316-first limit baffle, 317-, 318-limiting shaft, 319-second limit baffle, 320-arc support plate, 321-slide, 322-traction baffle, 323-traction shaft, 324-limiting bottom plate, 325-threaded rod, 326-limiting block, 401-mounting plate, 402-connecting rod, 403-hollow shell, 404-center shaft, 405-driving gear, 406-driven gear, 407-arc hole, 408-toggle rod, 409-limiting hole, 410-buckle plate, 411-hook plate. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Specific embodiment 1

[0034] See also Figure 1-7The present invention discloses a deep-water cage aquaculture cover net, comprising a cage 1; a cover net 2 is arranged on the top of the cage 1, and a stretching assembly 3 is fixedly installed on the bottom of the cover net 2; the stretching assembly 3 comprises a plurality of first rotating plate frames 301, a first rotating shaft 302 is rotatably matched with one side of the first rotating plate frame 301, a second rotating shaft 303 is rotatably matched with the inner wall of the first rotating plate frame 301, a side surface of the second rotating shaft 303 is located at the inner wall of the first rotating plate frame 301 and is rotatably matched with the second rotating plate frame 304, a side surface of the first rotating plate frame 301 is rotatably matched with a third rotating shaft 305, a side surface of the third rotating shaft 305 is located at the outer side of the first rotating plate frame 301 and is rotatably matched with the third rotating plate frame 306, and the third rotating plate frame 307 is rotatably matched with the third rotating plate frame 308. The inner wall of the rotating plate frame 306 is rotatably engaged with the fourth rotating shaft 307; the side surface of the fourth rotating shaft 307 is located on the inner wall of the third rotating plate frame 306 and is rotatably engaged with the fourth rotating plate frame 308; a side surface of the second rotating plate frame 304 is rotatably engaged with the fifth rotating shaft 309; a side surface of the third rotating plate frame 306 is rotatably engaged with the sixth rotating shaft 310; a fifth rotating plate frame 311 is rotatably engaged between the fifth rotating shaft 309 and the sixth rotating shaft 310; a side surface of the fourth rotating plate frame 308 is rotatably engaged with the seventh rotating shaft 312; a side surface of the fifth rotating plate frame 311 is rotatably engaged with the eighth rotating shaft 313; and a sixth rotating plate frame 314 is rotatably engaged between the seventh rotating shaft 312 and the eighth rotating shaft 313.

[0035] Specifically, the stretching component 3 also includes an installation dome plate 315, which is fixedly installed at the bottom center position of the cover net 2; a plurality of groups of first limit baffles 316 are fixed on the side of the installation dome plate 315, and each group of first limit baffles 316 is two in number, and each group of first limit baffles 316 is rotatably engaged with the first rotating shaft 302; a side of the sixth rotating plate frame 314 is rotatably engaged with a limit shaft 318, and the side of the limit shaft 318 is located on both sides of the sixth rotating plate frame 314 and is rotatably engaged with a second limit baffle 319, and the second limit baffle 319 is fixedly installed on the bottom of the cover net 2.

[0036] Furthermore, two symmetrical arc-shaped support plates 320 are fixed at the bottom of the dome plate 315, and a slide cylinder 321 is slidably engaged with the side surfaces of the two arc-shaped support plates 320. A plurality of groups of traction baffles 322 are fixed to the side surfaces of the slide cylinder 321, and each group of traction baffles 322 has two in number. A traction shaft 323 is rotatably engaged inside each group of traction baffles 322, and the traction shaft 323 is rotatably engaged with the third rotating plate frame 306. A limiting bottom plate 324 is fixed to the bottom of the two arc-shaped support plates 320.

[0037] The operation process of this embodiment is as follows: by sliding the slide cylinder 321 that slides and cooperates with the side surfaces of the two arc-shaped support plates 320 up and down, the third rotating plate frame 306 that rotates and cooperates in each set of traction baffles 322 makes a rotation movement centered on the traction shaft 323, driving one side of the first rotating plate frame 301 to make a rotation movement centered on the first rotating shaft 302, so that the angle between the first rotating plate frame 301 and the third rotating plate frame 306 first increases to 90 degrees and then gradually decreases, wherein the second rotating plate frame 304, the third rotating plate frame 306 and the sixth rotating plate frame 314 are parallel to each other, and the first rotating plate frame 301, the fourth rotating plate frame 308 and the fifth rotating plate frame 311 are parallel to each other. They are parallel to each other. After the above-mentioned parallel setting, the angle between the first rotating plate frame 301 and the sixth rotating plate frame 314 gradually increases, so that the distance between the first rotating shaft 302 and the limiting shaft 318 is increased. When the distance between the first rotating shaft 302 and the traction shaft 323 is minimum, that is, when the slide cylinder 321 that slides with the side surfaces of the two arc-shaped support plates 320 slides from the top of the limiting bottom plate 324 to the top of the two arc-shaped support plates 320, the distance between the first rotating shaft 302 and the limiting shaft 318 reaches the maximum, which can realize the expansion of the cover net 2 without manual opening of the cover net 2, thereby improving the efficiency of installing the cover net 2 on the net box 1. Specific embodiment 2

[0039] See also Figure 1-7 On the basis of the first specific embodiment, the bottom of the dome plate 315 is fixedly installed between the two arc-shaped support plates 320 with a motor 317, the output end of the motor 317 is fixedly connected with a threaded rod 325, and the bottom of the threaded rod 325 is rotatably matched with the top of the limiting bottom plate 324.

[0040] Specifically, a limit block 326 is fixed on the inner wall of the slide cylinder 321 , the limit block 326 is slidably matched with the two arc-shaped support plates 320 , and the limit block 326 is threadedly matched with the threaded rod 325 .

[0041] Furthermore, an annular sinker 101 is arranged on the outer top of the net box 1, an annular float 102 is arranged on the outer top of the net box 1, and a plurality of buckle components 4 are fixedly installed on the top of the annular float 102, and the buckle components 4 are buckled with the edge of the cover net 2.

[0042] The operation process of this embodiment is as follows: the motor 317 uses a waterproof motor to avoid water leakage and electric leakage during use. The net box 1 floats under water through the annular sinker 101 and the annular float 102 set on the outer top of the net box 1. The motor 317 fixedly installed between the two arc-shaped support plates 320 at the bottom of the dome plate 315 can be started forward or reversely, so that the threaded rod 325 rotates and fits on the top of the limiting bottom plate 324, driving the limiting block 326 with threaded fit on the side surface of the threaded rod 325 to rotate between the two arc-shaped support plates 320. The limit blocks 326 slide up and down, so that the slide cylinder 321 fixed around the limit blocks 326 slides up and down along the two arc-shaped support plates 320, wherein the motor 317 needs to be arranged in the water-proof space, which saves manpower operation and is convenient for people to use. When the slide cylinder 321 slides to the top of the two arc-shaped support plates 320, the cover net 2 is expanded to the maximum extent. At this time, a plurality of snap assemblies 4 arranged on the top of the outer top of the net box 1 can be used to snap the edge of the cover net 2 with the snap assemblies 4 to achieve and realize the disassembly and installation of the cover net 2, avoid the cover net 2 from falling off, and improve the use strength of the device. Specific embodiment three

[0044] See also Figure 1-7 On the basis of the specific embodiment 1 and the specific embodiment 2, the buckle assembly 4 includes a mounting plate 401, the mounting plate 401 is fixedly mounted on the top of the annular float 102, a connecting rod 402 is fixed on the top of the mounting plate 401, a hollow shell 403 is fixed on the top of the connecting rod 402, two central shafts 404 are fixed on the inner wall of the hollow shell 403, and the side surfaces of the two central shafts 404 are respectively rotatably matched with a driving gear 405 and a driven gear 406.

[0045] Specifically, an arc-shaped hole 407 is opened on one side of the hollow shell 403, and a toggle rod 408 is fixed on one side of the driving gear 405 inside the arc-shaped hole 407;

[0046] Furthermore, a limiting hole 409 is opened on the outer top of the hollow shell 403, and a snap plate 410 is fixed on the driven gear 406 in the limiting hole 409; a hook plate 411 is fixed on the outer top of the hollow shell 403, and the snap plate 410 and the inner sides of the hook plate 411 fit each other, and the edge of the cover net 2 is snapped on the inner sides of the snap plate 410 and the hook plate 411.

[0047] The operation process of this embodiment is: by rotating the toggle rod 408 located in the arc hole 407 opened on one side of the hollow shell 403 counterclockwise or clockwise, the driving gear 405 that rotates with the inner wall of the hollow shell 403 rotates counterclockwise or clockwise, driving the driven gear 406 that meshes with the driving gear 405 to rotate clockwise or counterclockwise, so that the snap plate 410 fixed in the limiting hole 409 on the side surface of the driven gear 406 rotates clockwise or counterclockwise with the central axis 404 as the center, so as to achieve and realize the separation or mutual fitting of the snap plate 410 and the inner side of the hook plate 411, and the edge of the cover net 2 can be snapped on the inner side of the snap plate 410 and the hook plate 411, so as to facilitate the fixed installation of the cover net 2.

[0048] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0049] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A deep-water cage aquaculture cover net, comprising a cage (1); characterized in that: A cover net (2) is arranged on the top of the net box (1), and a stretching component (3) is fixedly installed on the bottom of the cover net (2); The stretching assembly (3) comprises a plurality of first rotating plate frames (301), wherein a first rotating shaft (302) is rotatably matched on a side surface of the first rotating plate frame (301), a second rotating shaft (303) is rotatably matched on an inner wall of the first rotating plate frame (301), a peripheral side surface of the second rotating shaft (303) is located on the inner wall of the first rotating plate frame (301) and is rotatably matched with a second rotating plate frame (304), a third rotating shaft (305) is rotatably matched on a side surface of the first rotating plate frame (301), a peripheral side surface of the third rotating shaft (305) is located on the outer side of the first rotating plate frame (301) and is rotatably matched with a third rotating plate frame (306), and a fourth rotating shaft (307) is rotatably matched on the inner wall of the third rotating plate frame (306); The peripheral side surface of the fourth rotating shaft (307) is located on the inner wall of the third rotating plate frame (306) and is rotatably engaged with the fourth rotating plate frame (308); a side surface of the second rotating plate frame (304) is rotatably engaged with the fifth rotating shaft (309); a side surface of the third rotating plate frame (306) is rotatably engaged with the sixth rotating shaft (310); a fifth rotating plate frame (311) is rotatably engaged between the fifth rotating shaft (309) and the sixth rotating shaft (310); a side surface of the fourth rotating plate frame (308) is rotatably engaged with the seventh rotating shaft (312); a side surface of the fifth rotating plate frame (311) is rotatably engaged with the eighth rotating shaft (313); a sixth rotating plate frame (314) is rotatably engaged between the seventh rotating shaft (312) and the eighth rotating shaft (313).

2. A deep water cage aquaculture cover net according to claim 1, characterized in that: The stretching assembly (3) further comprises a mounting dome plate (315), wherein the mounting dome plate (315) is fixedly mounted at the center position of the bottom of the cover net (2); a plurality of groups of first position-limiting baffles (316) are fixedly mounted on the peripheral side of the mounting dome plate (315), wherein each group of the first position-limiting baffles (316) has two first position-limiting baffles (316), and each group of the first position-limiting baffles (316) is rotatably matched with the first rotating shaft (302); A side surface of the sixth rotating plate frame (314) is rotatably engaged with a limit shaft (318), and the side surfaces around the limit shaft (318) are located on both sides of the sixth rotating plate frame (314) and are rotatably engaged with a second limit baffle (319), and the second limit baffle (319) is fixedly mounted on the bottom of the cover net (2).

3. A deep water cage aquaculture cover net according to claim 2, characterized in that: Two symmetrical arc-shaped support plates (320) are fixed at the bottom of the mounting dome plate (315), and a slide cylinder (321) is slidably matched on the peripheral side surfaces of the two arc-shaped support plates (320). A plurality of groups of traction baffles (322) are fixed on the peripheral side surfaces of the slide cylinder (321), and each group of traction baffles (322) has two in number. A traction shaft (323) is rotatably matched inside each group of traction baffles (322), and the traction shaft (323) is rotatably matched with the third rotating plate frame (306). A limiting bottom plate (324) is fixed at the bottom of the two arc-shaped support plates (320).

4. A deep water cage aquaculture cover net according to claim 3, characterized in that: A motor (317) is fixedly installed at the bottom of the mounting dome plate (315) between the two arc-shaped support plates (320), a threaded rod (325) is fixedly connected to the output end of the motor (317), and the bottom of the threaded rod (325) is rotatably matched with the top of the limiting bottom plate (324).

5. A deep water cage aquaculture cover net according to claim 4, characterized in that: A limit block (326) is fixed on the inner wall of the slide cylinder (321), the limit block (326) is slidably matched with the two arc-shaped support plates (320), and the limit block (326) is threadedly matched with the threaded rod (325).

6. A deep water cage aquaculture cover net according to claim 5, characterized in that: An annular sinker (101) is arranged on the outer top of the net box (1), an annular float (102) is arranged on the outer top of the net box (1), a plurality of buckle assemblies (4) are fixedly mounted on the top of the annular float (102), and the buckle assemblies (4) are buckled with the edge of the cover net (2).

7. A deep water cage aquaculture cover net according to claim 6, characterized in that: The buckle assembly (4) comprises a mounting plate (401), the mounting plate (401) is fixedly mounted on the top of the annular float (102), a connecting rod (402) is fixed on the top of the mounting plate (401), a hollow shell (403) is fixed on the top of the connecting rod (402), two central shafts (404) are fixed on the inner wall of the hollow shell (403), and the peripheral side surfaces of the two central shafts (404) are respectively rotatably matched with a driving gear (405) and a driven gear (406).

8. A deep water cage aquaculture cover net according to claim 7, characterized in that: An arc-shaped hole (407) is formed on one side of the hollow shell (403), and a toggle rod (408) is fixed on one side of the driving gear (405) inside the arc-shaped hole (407); A limiting hole (409) is provided on the outer top of the hollow shell (403), and a buckle plate (410) is fixed on the peripheral side surface of the driven gear (406) in the limiting hole (409); A hook-shaped plate (411) is fixed to the outer top of the hollow shell (403), the buckle plate (410) and the inner side of the hook-shaped plate (411) are fitted to each other, and the edge of the cover net (2) is buckled to the inner side of the buckle plate (410) and the hook-shaped plate (411).

Images