A fish blocking device for deep sea cages

Abstract

The present invention relates to the field of deep-sea aquaculture, and in particular to a fish intercepting device for deep-sea cages. The technical problem of the present invention is to provide a deep-sea cage fish intercepting device that can separate large fish from small fry in a fish school and keep the small fry in a deep-sea cage when catching fish schools during the fishing season of deep-sea aquaculture. A deep-sea cage fish intercepting device includes a deep-sea cage frame, a buoyancy bag, a deep-sea isolation net, a square support, etc.; the upper part of the deep-sea cage frame is fixedly connected to the buoyancy bag, the deep-sea cage frame is fixedly connected to the deep-sea isolation net, and the top of the deep-sea cage frame is fixedly connected to the square support. The present invention drives the movement of the filter inner net by the movement of the mesh plate, and the filter inner net moves in the deep-sea isolation net to intercept the fish in the deep-sea isolation net together, and the small fish drill through the filter inner net, thereby achieving the function of intercepting the fish school in the deep-sea isolation net and filtering out the small fish.

Description

Technical Field

[0001] The invention relates to the field of deep-sea aquaculture, and in particular to a fish intercepting device for a deep-sea cage. Background Art

[0002] Deep-sea aquaculture is a production activity that uses shallow coastal mudflats to cultivate marine aquatic economic animals and plants. It is an important part of the aquaculture industry. The objects of deep-sea aquaculture are mainly fish, shrimps, crabs, shellfish, algae, and other economic animals such as sea cucumbers. Deep-sea aquaculture of marine fish has just started in my country and is a new technology with broad application prospects.

[0003] Fish are farmed in deep-sea cages. During the fishing season, the fish in the deep-sea cages will be caught. During the fishing process, we need to catch larger fish and then sell them. Some fry that have not grown up are also easily caught. These small fry do not meet the fishing standards and have almost no commercial value. Fishing fry from deep-sea cages is not conducive to the sustainable development of deep-sea aquaculture. Therefore, we urgently need to study a deep-sea cage fish interception device that can separate large fish from small fry in the fish school when fishing, and keep the small fry in the deep-sea cage. Summary of the invention

[0004] In order to solve the problem that some small fish fry are also caught during the fishing process of fish cultured in deep-sea cages, the technical problem of the present invention is to provide a deep-sea cage fish intercepting device which can separate the big fish and small fish fry in the fish school and keep the small fish fry in the deep-sea cage when fishing in the deep-sea farming fishing season.

[0005] Technical solution: A fish blocking device for a deep-sea cage, comprising a deep-sea cage frame, a buoyancy bag, a deep-sea isolation net, a square support, a fish blocking assembly and a moving mechanism, wherein the upper part of the deep-sea cage frame is fixedly connected with the buoyancy bag, the deep-sea isolation net is fixedly connected inside the deep-sea cage frame, the top of the deep-sea cage frame is fixedly connected with the square support, the square support is provided with a fish blocking assembly, and the square support is provided with a moving mechanism.

[0006] In addition, it is particularly preferred that the fish blocking assembly includes a sliding seat, a mesh plate and a filter inner net, the sliding seat is symmetrically slidably connected to one side of the top of the square support, the two sliding seats are jointly clamped with a mesh plate, four filter inner nets are fixedly connected to the mesh plate, and the sliding seat, mesh plate and filter inner net are located in the deep sea isolation net.

[0007] In addition, it is particularly preferred that the moving mechanism includes a fixed support, a servo motor, a power screw, a fixed limit seat and a fixed nut member, the side of the square support close to the sliding seat is fixedly connected to the fixed support, the top of the fixed support is symmetrically fixedly connected to the servo motor, the output shaft of the servo motor is fixedly connected to the power screw, the power screw is connected to the sliding seat through a threaded connection, the top of the square support close to the servo motor is connected to the fixed limit seat through a fixed nut member, and the fixed limit seat is in contact with the power screw.

[0008] In addition, it is particularly preferred that it also includes a lifting and pushing mechanism, which is arranged on the mesh plate and connected to the square support, and the lifting and pushing mechanism includes a fixed guide block, a lifting guide rod, an L-shaped rod, a sliding wheel, a fixed convex rod and a fixed pushing plate, and the upper side of the mesh plate away from the servo motor is symmetrically fixedly connected with a fixed guide block, and the fixed guide block is slidably connected with a lifting guide rod, and the lifting guide rod is located in the deep-sea isolation net, and the lifting guide rod is slidably connected to the mesh plate, and the top of the lifting guide rod is fixedly connected with an L-shaped rod, and the end of the L-shaped rod away from the lifting guide rod is rotatably connected with a sliding wheel, and the upper part of the square support is symmetrically fixedly connected with a fixed convex rod, and the sliding wheel is in contact with the fixed convex rod, and the side of two lifting guide rods away from the mesh plate is fixedly connected with five fixed pushing plates.

[0009] The cam is provided with a plurality of movable members, and the movable members are provided with a plurality of movable members, and the movable members are provided with a plurality of movable members.

[0010] In addition, it is particularly preferred that it further includes a sliding bar and a fixed support rod, the sliding bar is symmetrically slidably connected to the middle of one side of the square support away from the L-shaped rod, and the top of the sliding bar is fixedly connected to the fixed support rod.

[0011] In addition, it is particularly preferred that it also includes a discharge frame and a movable closing plate, the discharge frame is fixedly connected to the two sliding seats, a discharge port is opened at the bottom of the discharge frame, the discharge frame is located above the deep-sea isolation net, and the lower part of the discharge frame is slidably connected to the movable closing plate, and the movable closing plate is in contact with the bottom of the discharge frame.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] 1. The present invention drives the movement of the inner filter net by moving the mesh plate. The inner filter net moves in the deep-sea isolation net to intercept the fish in the deep-sea isolation net together, and the small fish drill through the inner filter net, thereby achieving the function of intercepting the fish school in the deep-sea isolation net and filtering out the small fish.

[0014] 2. The present invention drives the fixed push plate to fluctuate up and down by the up and down fluctuation of the lifting guide rod, and the fixed push plate fluctuates up and down to stir the fish school, thereby achieving the effect of stirring the fish school and making the fish school swim around, so that more small fish can quickly drill through the filter inner net.

[0015] 3. The anti-backflow net of the present invention is moved so that it no longer overlaps with the inner filter net. The inner filter net and the anti-backflow net are misaligned to make the net denser, thereby achieving the function of misaligning the inner filter net and the anti-backflow net to make the net denser, thereby preventing small fish from passing through the inner filter net and the anti-backflow net during the fishing process.

[0016] 4. The present invention drives the feeding frame to move by moving two sliding seats. When the feeding frame moves, bait is released to attract small fishes between the deep-sea isolation net and the anti-backflow net, thereby achieving the effect of further isolating big fishes from small fishes. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the first three-dimensional structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the second three-dimensional structure of the present invention.

[0019] Figure 3 It is a schematic diagram of the first partial three-dimensional structure of the present invention.

[0020] Figure 4 It is a schematic diagram of a second partial three-dimensional structure of the present invention.

[0021] Figure 5 It is a schematic diagram of a third partial three-dimensional structure of the present invention.

[0022] Figure 6 It is a schematic diagram of the enlarged three-dimensional structure of A of the present invention.

[0023] Figure 7It is a schematic diagram of a fourth partial three-dimensional structure of the present invention.

[0024] Figure 8 It is a schematic diagram of a fifth partial three-dimensional structure of the present invention.

[0025] Fig. 9 It is a schematic diagram of the sixth partial three-dimensional structure of the present invention.

[0026] Fig.10 It is a schematic diagram of the three-dimensional structure of the material discharging frame and the movable closing plate of the present invention.

[0027] Fig.11 It is a schematic diagram of the three-dimensional structure of the sliding seat and the screen plate of the present invention.

[0028] Among them, the above-mentioned drawings include the following figure marks: 1. deep-sea cage frame, 2. buoyancy bag, 3. deep-sea isolation net, 4. square support, 5. fish blocking assembly, 51. sliding seat, 52. mesh plate, 53. filter inner net, 6. moving mechanism, 61. fixed support, 62. servo motor, 63. power screw, 64. fixed limit seat, 65. fixed nut, 7. lifting and pushing mechanism, 71. fixed guide block, 72. lifting guide rod, 73. L-shaped rod, 74. sliding wheel, 75. fixed protruding rod, 76. fixed pushing plate, 8. anti-backflow mechanism, 81. fixed sliding bar, 82. mobile intercepting frame, 83. anti-backflow net, 84. extrusion spring, 85. transverse bar, 86. movable wheel, 87. fixed protruding frame, 91. sliding bar, 92. fixed support rod, 101. material discharge frame, 102. mobile closing plate. Implementation

[0029] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, and bonding in the prior art, which will not be described in detail here. Example

[0030] A fish intercepting device for deep sea cages, such as Figure 1-Figure 5 As shown, it includes a deep-sea cage frame 1, a buoyancy bag 2, a deep-sea isolation net 3, a square support 4, a fish blocking component 5 and a moving mechanism 6. The upper part of the deep-sea cage frame 1 is fixedly connected with the buoyancy bag 2, and the buoyancy bag 2 will make the deep-sea cage frame 1 float on the sea surface. The deep-sea isolation net 3 is fixedly connected inside the deep-sea cage frame 1, and the deep-sea isolation net 3 is used for breeding fish. The top of the deep-sea cage frame 1 is fixedly connected with a square support 4, and a fish blocking component 5 is provided on the square support 4. The fish blocking component 5 is used to intercept the fish school in the deep-sea isolation net 3 and filter out small fish. The square support 4 is provided with a moving mechanism 6, and the moving mechanism 6 is used to move the fish blocking component 5.

[0031] The fish blocking component 5 includes a sliding seat 51, a mesh plate 52 and a filter inner net 53. The sliding seat 51 is symmetrically slidably connected to one side of the top of the square support 4. The two sliding seats 51 are jointly clamped with the mesh plate 52. The staff can take the mesh plate 52 out of the clamping slot on the sliding seat 51 to prevent the mesh plate 52 from being soaked in water for a long time and being entangled with some garbage, causing blockage, so that large and small fish cannot be filtered, and it is convenient for subsequent cleaning. Four filter inner nets 53 are fixedly connected to the mesh plate 52. The filter inner net 53 is used to filter small fish. The sliding seat 51, the mesh plate 52 and the filter inner net 53 are located in the deep-sea isolation net 3.

[0032] The moving mechanism 6 includes a fixed support 61, a servo motor 62, a power screw 63, a fixed limit seat 64 and a fixed nut 65. The side of the square support 4 close to the sliding seat 51 is connected to the fixed support 61 by bolts, and the top of the fixed support 61 is symmetrically connected to the servo motor 62 by bolts. The output shaft of the servo motor 62 is provided with a power screw 63, and the power screw 63 is horizontally arranged. The power screw 63 is connected to the sliding seat 51 by threads. The top of the square support 4 close to the servo motor 62 is connected to the fixed limit seat 64 by a fixed nut 65. The fixed limit seat 64 has a limiting effect on the power screw 63, and the fixed limit seat 64 is in contact with the power screw 63.

[0033] Initially, there are fish schools in the deep-sea isolation net 3. In actual operation, the staff starts the two servo motors 62 at the same time. The output shaft of the servo motor 62 rotates clockwise to drive the power screw 63 to rotate clockwise. The clockwise rotation of the power screw 63 drives the sliding seat 51 to move away from the servo motor 62. The movement of the two sliding seats 51 drives the mesh plate 52 to move. The movement of the mesh plate 52 drives the filter inner net 53 to move. The movement of the filter inner net 53 in the deep-sea isolation net 3 will move the fish in the deep-sea isolation net 3. When intercepted together, the small fish will drill through the filtering inner net 53, thereby achieving the function of intercepting the fish school of the deep-sea isolation net 3 and filtering out the small fish. After the staff salvages the intercepted fish school, they adjust the output shaft of the servo motor 62 to rotate counterclockwise. The counterclockwise rotation of the output shaft of the servo motor 62 will drive the power screw 63 to rotate counterclockwise, and the counterclockwise rotation of the power screw 63 will drive the sliding seat 51 to reset, and the reset of the sliding seat 51 will drive the mesh plate 52 to reset, and the reset of the mesh plate 52 will drive the filtering inner net 53 to reset. Example

[0034] On the basis of Example 1, Figure 6-Figure 7As shown, it also includes a lifting and pushing mechanism 7, which is arranged on the mesh plate 52 and connected to the square support 4. The lifting and pushing mechanism 7 is used to stir the fish school so that the fish school swims around, so that more small fish can quickly drill through the filtering inner net 53, and then quickly filter out the small fish. The lifting and pushing mechanism 7 includes a fixed guide block 71, a lifting guide rod 72, an L-shaped rod 73, a sliding wheel 74, a fixed protruding rod 75 and a fixed pushing plate 76. The fixed guide block 71 is symmetrically welded on one side of the upper part of the mesh plate 52 away from the servo motor 62. The sliding type on the fixed guide block 71 A lifting guide rod 72 is connected, and the lifting guide rod 72 is vertically arranged. The lifting guide rod 72 is located in the deep-sea isolation net 3. The lifting guide rod 72 is slidably connected to the mesh plate 52. An L-shaped rod 73 is welded on the top of the lifting guide rod 72. The end of the L-shaped rod 73 away from the lifting guide rod 72 is rotatably connected to a sliding wheel 74. Fixed protruding rods 75 are symmetrically welded on the upper part of the square support 4. The sliding wheel 74 is in contact with the fixed protruding rod 75. Five fixed push plates 76 are welded on the side of the two lifting guide rods 72 away from the mesh plate 52, and the fixed push plates 76 are obliquely arranged.

[0035] At first, the backflow prevention net 83 overlaps with the filtering inner net 53. When the net plate 52 moves in the direction away from the servo motor 62, it will drive the fixed guide block 71 to move. The movement of the fixed guide block 71 will drive the lifting guide rod 72 to move. The movement of the lifting guide rod 72 will drive the L-shaped rod 73 and the fixed pushing plate 76 to move. The movement of the L-shaped rod 73 will drive the sliding wheel 74 to move along the fixed protruding rod 75. At the same time, the sliding wheel 74 will rotate, and the fixed protruding rod 75 will intermittently push the sliding wheel 74 to move upward or downward. The up and down fluctuation of the sliding wheel 74 will drive the L-shaped rod 73 to fluctuate up and down. The up and down fluctuation of the L-shaped rod 73 will drive the lifting guide rod 72 to fluctuate up and down. The up and down fluctuation of the lifting guide rod 72 will drive the fixed pushing plate 76 to fluctuate up and down. The up and down fluctuation of the fixed pushing plate 76 will stir the fish school, thereby stirring the fish school and making the fish school swim around, so that more small fish can quickly drill through the filtering inner net 53, and then quickly filter out the small fish. Example

[0036] On the basis of Example 1, Figure 6-Figure 8As shown, it also includes an anti-backflow mechanism 8, which is arranged on the mesh plate 52 and connected to the square support 4. The anti-backflow mechanism 8 makes the net denser, so that small fish can no longer pass through the filtering inner net 53 during the fishing process. The anti-backflow mechanism 8 includes a fixed slide 81, a mobile interception frame 82, an anti-backflow net 83, an extrusion spring 84, a transverse bar 85, a movable wheel 86 and a fixed protrusion 87. The upper part of the mesh plate 52 is slidably connected to two fixed slides 81, and the lower side surfaces of the two fixed slides 81 close to the servo motor 62 are welded with a mobile interception frame 82. The mobile interception frame 82 is located in the deep-sea isolation net 3, and the mesh plate 52 is located in the lifting position. Between the guide rod 72 and the movable intercepting frame 82, four backflow prevention nets 83 are fixedly connected to the movable intercepting frame 82. The backflow prevention nets 83 are dislocated with the filter inner net 53 by movement to make the net denser. An extrusion spring 84 is connected to the fixed slide 81 and the mesh plate 52 through a hook. A transverse bar 85 is welded to the top of the end of the two fixed slides 81 away from the movable intercepting frame 82. The transverse bar 85 is horizontally arranged. The end of the transverse bar 85 close to the fixed protrusion 75 is rotatably connected to a movable wheel 86. A fixed protrusion 87 is fixedly connected to the upper part of the square support 4. When the movable wheel 86 moves toward the fixed protrusion 87, it will contact the fixed protrusion 87.

[0037] When the mesh plate 52 moves in the direction away from the servo motor 62, the fixed slide bar 81 will be driven to move. The movement of the two fixed slide bars 81 will drive the mobile interception frame 82 and the transverse bar 85 to move. The movement of the mobile interception frame 82 will drive the anti-backflow net 83 to move. The movement of the transverse bar 85 will drive the movable wheel 86 to move. The movement of the movable wheel 86 will contact the fixed convex frame 87. The continued movement of the movable wheel 86 will cause the fixed convex frame 87 to squeeze the movable wheel 86 to move in the direction away from the fixed convex rod 75. The movable wheel 86 will rotate at the same time. The movement of the movable wheel 86 in the direction away from the fixed convex rod 75 will drive the transverse bar 85 to move. The movement of the transverse bar 85 in the direction away from the fixed convex rod 75 will drive the two fixed slide bars 81 to move. The extrusion spring 84 is compressed. The two fixed slide bars 81 move in the direction away from the fixed convex rod 75. The movable intercepting frame 82 moves, and the movement of the movable intercepting frame 82 in the direction away from the fixed protrusion 75 will drive the anti-backflow net 83 to move. The movement of the anti-backflow net 83 will no longer overlap with the filter inner net 53. The misalignment of the filter inner net 53 and the anti-backflow net 83 will make the net more dense, and thus small fish can no longer pass through the filter inner net 53 and the anti-backflow net 83 during the fishing process. The reset of the net plate 52 in the direction close to the servo motor 62 will drive the reset of the fixed slide bar 81. The reset of the fixed slide bar 81 will drive the movable intercepting frame 82 and the transverse bar 85 to reset. The reset of the movable intercepting frame 82 will drive the reset of the anti-backflow net 83. The reset of the transverse bar 85 will drive the reset of the movable wheel 86. The movement of the movable wheel 86 will disengage from the fixed protrusion 87. The reset of the extrusion spring 84 will drive the fixed slide bar 81 to reset in the direction close to the fixed protrusion 75. Example

[0038] On the basis of Example 1, Fig. 9 As shown, it also includes a sliding bar 91 and a fixed support rod 92. The sliding bar 91 is symmetrically slidably connected to the middle part of one side of the square support 4 away from the L-shaped rod 73. The fixed support rod 92 is welded to the top of the sliding bar 91, and the top of the fixed support rod 92 is flush with the top of the fixed protrusion 87.

[0039] When the staff is intercepting fish, they can judge the stirring time of the fish school according to the density of the fish school. When the sliding wheel 74 moves in the direction away from the servo motor 62, it will contact the fixed support rod 92. The sliding wheel 74 continues to move and will roll on the top of the fixed support rod 92. At this time, the sliding wheel 74 stops fluctuating up and down, and the fixed push plate 76 stops stirring the fish school. If the density of the fish school is too large, it is not suitable to stir the fish school. It is necessary to move the sliding bar 91 in the direction close to the servo motor 62. The movement of the sliding bar 91 will drive the fixed support rod 92 to move, and the sliding wheel 74 will contact the fixed support rod 92 in advance. If the density of the fish school is small, the stirring time of the fish school can be appropriately extended. It is necessary to move the sliding bar 91 in the direction away from the servo motor 62. The movement of the sliding bar 91 will drive the fixed support rod 92 to move, and the sliding wheel 74 will delay contacting the fixed support rod 92, thereby achieving the function of adjusting the stirring time of the fixed push plate 76 according to the density of the fish school. Example

[0040] On the basis of Example 1, Figure 9-10 As shown, it also includes a discharge frame 101 and a movable closing plate 102. The discharge frame 101 is welded together on the two sliding seats 51. The discharge frame 101 is used to store bait. A discharge port is opened at the bottom of the discharge frame 101. The discharge frame 101 is located above the deep-sea isolation net 3. The lower part of the discharge frame 101 is slidably connected to the movable closing plate 102. The movable closing plate 102 is used to block the discharge port of the discharge frame 101. The movable closing plate 102 is in contact with the bottom of the discharge frame 101.

[0041] At first, the staff adds bait into the feeding frame 101, and then pulls the movable closing plate 102 to put the bait in the feeding frame 101 into the deep-sea isolation net 3. The movement of the two sliding seats 51 will drive the feeding frame 101 to move, and the movement of the feeding frame 101 will drive the movable closing plate 102 to move. When the feeding frame 101 moves, it will release bait and attract small fish to between the deep-sea isolation net 3 and the anti-backflow net 83, thereby achieving the effect of further isolating big fish from small fish. The resetting of the sliding seat 51 will drive the feeding frame 101 to reset, and the resetting of the feeding frame 101 will drive the movable closing plate 102 to reset.

[0042] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A fish blocking device for deep-sea cages, characterized in that: The invention comprises a deep-sea cage frame (1), a buoyancy bag (2), a deep-sea isolation net (3), a square support (4), a fish blocking component (5) and a moving mechanism (6); the upper part of the deep-sea cage frame (1) is fixedly connected to the buoyancy bag (2); the inner part of the deep-sea cage frame (1) is fixedly connected to the deep-sea isolation net (3); the top of the deep-sea cage frame (1) is fixedly connected to the square support (4); the square support (4) is provided with a fish blocking component (5); and the square support (4) is provided with a moving mechanism (6); The fish blocking component (5) comprises a sliding seat (51), a mesh plate (52) and a filtering inner net (53); two sliding seats (51) are slidingly connected to one side of the top of the square support (4) and are symmetrically arranged; the two sliding seats (51) are commonly clamped with a mesh plate (52); four filtering inner nets (53) are fixedly connected to the mesh plate (52); the sliding seat (51), the mesh plate (52) and the filtering inner net (53) are located in the deep sea isolation net (3); The moving mechanism (6) comprises a fixed support (61), a servo motor (62), a power screw (63), a fixed limit seat (64) and a fixed nut (65); the fixed support (61) is fixedly connected to one side of the square support (4) close to the sliding seat (51); the servo motor (62) is symmetrically fixedly connected to the top of the fixed support (61); the power screw (63) is fixedly connected to the output shaft of the servo motor (62); the power screw (63) is connected to the sliding seat (51) via a thread; the fixed limit seat (64) is connected to one side of the top of the square support (4) close to the servo motor (62) via a fixed nut (65); the fixed limit seat (64) is in contact with the power screw (63); The lifting and pushing mechanism (7) is also included. The lifting and pushing mechanism (7) is arranged on the mesh plate (52) and connected to the square support (4). The lifting and pushing mechanism (7) includes a fixed guide block (71), a lifting guide rod (72), an L-shaped rod (73), a sliding wheel (74), a fixed protruding rod (75) and a fixed pushing plate (76). Two fixed guide blocks (71) are fixedly connected to one side of the upper part of the mesh plate (52) away from the servo motor (62) and are symmetrically arranged. The fixed guide block (71) is slidably connected to the lifting guide rod (72). The rod (72) is located in the deep-sea isolation net (3), the lifting guide rod (72) is slidably connected to the mesh plate (52), the top of the lifting guide rod (72) is fixedly connected to an L-shaped rod (73), one end of the L-shaped rod (73) away from the lifting guide rod (72) is rotatably connected to a sliding wheel (74), the upper part of the square support (4) is symmetrically fixedly connected to a fixed protruding rod (75), the sliding wheel (74) is in contact with the fixed protruding rod (75), and five fixed pushing plates (76) are fixedly connected to the side of the two lifting guide rods (72) away from the mesh plate (52).

2. A deep-sea cage fish intercepting device according to claim 1, characterized in that: The invention also comprises a backflow prevention mechanism (8), the backflow prevention mechanism (8) being arranged on the mesh plate (52) and connected to the square support (4), the backflow prevention mechanism (8) comprising a fixed slide bar (81), a movable interception frame (82), a backflow prevention net (83), an extrusion spring (84), a transverse bar (85), a movable wheel (86) and a fixed protrusion (87), the upper part of the mesh plate (52) being slidably connected to two fixed slide bars (81), the lower side surfaces of the two fixed slide bars (81) close to the servo motor (62) being fixedly connected to the movable interception frame (82), the movable interception frame (82) being located in the deep sea isolation net (3), and the mesh plate (52) Located between the lifting guide rod (72) and the movable intercepting frame (82), the movable intercepting frame (82) is fixedly connected with four backflow prevention nets (83), the fixed slide bar (81) and the mesh plate (52) are connected with a compression spring (84), the top of the two fixed slide bars (81) away from the movable intercepting frame (82) are fixedly connected with a transverse bar (85), the end of the transverse bar (85) close to the fixed protruding rod (75) is rotatably connected with a movable wheel (86), the upper part of the square support (4) is fixedly connected with a fixed protruding frame (87), and the movable wheel (86) will contact the fixed protruding frame (87) when moving close to the fixed protruding frame (87).

3. A deep-sea cage fish intercepting device according to claim 2, characterized in that: It also comprises a sliding bar (91) and a fixed support bar (92); the sliding bar (91) is symmetrically slidably connected to the middle of one side of the square support (4) away from the L-shaped bar (73); and the top of the sliding bar (91) is fixedly connected to the fixed support bar (92).

4. A deep-sea cage fish intercepting device according to claim 3, characterized in that: It also includes a material discharging frame (101) and a movable closing plate (102). The two sliding seats (51) are fixedly connected to the material discharging frame (101). The bottom of the material discharging frame (101) is provided with a material discharge port. The material discharging frame (101) is located above the deep-sea isolation net (3). The lower part of the material discharging frame (101) is slidably connected to the movable closing plate (102). The movable closing plate (102) contacts the bottom of the material discharging frame (101).

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