A feeding device for net cage fish farming

Abstract

The present application is suitable for the technical field of fish culture, and provides a feeding device for net cage fish culture, which comprises a box barrel, a feeding cabin, a variable-pitch support and a roller, the variable-pitch support is installed on both sides of the feeding cabin, the roller is installed on the end side of the variable-pitch support, the feeding cabin is located above the box barrel, and the device further comprises: a lifting assembly arranged in the interior of the box barrel and used for adjusting the feeding depth of fish; and a separation assembly arranged in the interior of the box barrel and used for distinguishing and intercepting fish of different volumes. The present application has the beneficial effect that after the separation net is flattened, large fish are limited in the middle of the interior cavity of the box barrel, small fish can swim to both sides of the box barrel through the round holes on the separation net, so that the large fish and the small fish are separated, with the reciprocating sliding of the feeding cabin on the box barrel, the fish food is fed into the interior cavity of the box barrel and is separated into three areas by the second set of frames, so that the small fish can obtain the fish food without competing with the large fish, and the survival rate of the small fish during concentrated culture is improved.

Description

Technical Field

[0001] This invention belongs to the field of fish farming technology, and in particular relates to a feeding device for net cage fish farming. Background Technology

[0002] Cage aquaculture is currently the mainstream model of intensive aquaculture, possessing advantages such as high stocking density, good water exchange, and high aquaculture efficiency. It is widely used in large-scale fish farming production in nearshore and inland waters. Feeding is the core link in fish farming, and the intelligence and precision of feeding equipment directly determine feed utilization rate, fish survival rate, and overall aquaculture economic benefits.

[0003] Existing feeding equipment lacks the function of regulating the aquatic environment. During cage culture, the water is constantly flowing, and the impact of the water flow causes the fish food to be put in to scatter and sink too quickly. The fish cannot eat in time, which easily leads to a large amount of feed waste. This not only significantly reduces the feed utilization rate and increases the breeding cost, but the residual feed will also settle at the bottom of the water, pollute the aquatic water, and deteriorate the aquatic water quality.

[0004] In the intensive cage aquaculture model, fish of different sizes often exist in the same aquaculture tank. When fish of different sizes are mixed, the larger fish are more competitive for food and will take up most of the feed, while the smaller fish do not get enough food and their growth rate is slow. This can easily lead to serious size differentiation and low survival rate of small fish, which seriously affects the overall aquaculture yield and quality. Summary of the Invention

[0005] The purpose of this invention is to provide a feeding device for cage-type fish farming, which aims to solve the technical problems existing in the prior art mentioned in the background.

[0006] This invention is implemented as follows: a feeding device for cage-type fish farming includes a cage, a feeding chamber, a variable-pitch support, and rollers. The variable-pitch support is installed on both sides of the feeding chamber, and the rollers are installed on the end sides of the variable-pitch support. The feeding chamber is located above the cage, and the device further includes:

[0007] A lifting assembly, located inside the tank, is used to adjust the feeding depth for fish.

[0008] A separating component, installed inside a tank, is used to separate and intercept farmed fish of different sizes. The separating component includes a base, which is fixedly connected to the inner wall of the tank. A lead screw is rotatably connected to the top of the base, and a round rod is fixedly connected to the top of the lead screw. A second sliding rod is fixedly connected to the top of the base. A first frame is fixedly connected to the inner wall of the tank and is fitted onto the outer wall of the round rod. A second frame is slidably connected to the surface of the second sliding rod and slides with the lead screw. A separating net is fixedly connected between the first frame and the second frame.

[0009] As a preferred technical solution of the present invention: a toothed disc is symmetrically rotatably connected to the top of the bin, a rack is symmetrically slidably connected to the bottom of the variable pitch bracket, a first spring is fixedly connected between the rack and the variable pitch bracket, the rack meshes with the toothed disc, a second gear is fixedly connected to the top of the round rod, a transmission belt is connected between the second gear and the toothed disc, and round holes are uniformly opened on the surface of the separator mesh.

[0010] As another preferred technical solution of the present invention: when the second frame is located at the top of the lead screw, the separator is in a completely folded state between the first frame and the second frame; when the second frame is located at the bottom of the lead screw, the separator is in a flattened state between the first frame and the second frame.

[0011] As another preferred technical solution of the present invention: the bottom of the tank is evenly provided with first water permeable holes, the first water permeable holes are located below the base, and the top of the tank is symmetrically fixedly connected with slide rails, and the rollers are in rolling cooperation with the slide rails.

[0012] As another preferred technical solution of the present invention: the lifting assembly includes a bottom plate slidably connected inside the tank, a traction machine symmetrically installed on the top of the tank, a traction rope connected between the traction machine and the bottom plate, a second water-permeable hole evenly opened on both sides of the surface of the bottom plate, a first sliding rod symmetrically rotatably connected to the bottom of the bottom plate, a threaded groove symmetrically opened on the surface of the first sliding rod, a baffle slidably connected between the two first sliding rods, the baffle slidingly engaging with the threaded groove, and a water-permeable groove evenly opened on the baffle.

[0013] As another preferred technical solution of the present invention: when the bottom plate is located at the bottom of the tank, the water permeable groove is perpendicularly connected to the second water permeable hole; when the bottom plate moves to the top inside the tank, the baffle blocks and seals the second water permeable hole.

[0014] As another preferred technical solution of the present invention: a first gear is fixedly connected to the surface of the first slide rod, and a toothed plate is fixedly connected to the inner wall of the box barrel, and the first gear and the toothed plate mesh.

[0015] As another preferred technical solution of the present invention: a hollow turntable is rotatably connected to the middle of the base plate, a filter screen is fixedly connected to the bottom of the hollow turntable, and inclined plates are uniformly fixedly connected to the bottom of the hollow turntable.

[0016] As another preferred technical solution of the present invention: a hook is fixedly connected to the base plate.

[0017] The beneficial effects of the embodiments of the present invention are as follows:

[0018] 1. The inner cavity of the tank is sealed off from the outside by the tank and the bottom plate. The water flow in the upper part of the inner cavity is slowed down, and the fish are confined to the area with slower water flow in the upper part of the inner cavity. After the fish food is fed, it falls slowly in the water without being affected by the water flow, providing the fish with sufficient time to eat. This reduces the problem of food being wasted due to fish not eating in time or water flow, and improves the feeding efficiency.

[0019] 2. After being flattened by the dividing net, the large fish will be confined to the middle of the tank cavity, while the small fish can swim to both sides of the tank through the round holes in the dividing net, thus separating the large and small fish. As the feeding tank slides back and forth on the tank, the fish food will be placed into the three areas of the tank cavity separated by the second set of racks, thus ensuring that the small fish do not have to compete with the large fish for food and improving the survival rate of the small fish in intensive breeding.

[0020] 3. The inclined plate will cause the perforated turntable to rotate on the bottom plate according to the direction of water flow. When the water flows under the perforated turntable, the flow speed under the perforated turntable is faster than that at the top. Through the negative pressure, the impurities deposited on the bottom plate will flow out through the filter screen to the bottom of the perforated turntable, thereby ensuring that the surface of the bottom plate is kept clean during breeding and avoiding the accumulation of impurities such as feces and fish food, which will deteriorate the water quality. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of the overall structure provided in an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the overall structure of the feeding chamber provided in an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the overall structure of the lifting component provided in an embodiment of the present invention;

[0024] Figure 4 This is an exploded view of the lifting component structure provided in an embodiment of the present invention;

[0025] Figure 5 This is a cross-sectional schematic diagram of the hollow turntable structure provided in an embodiment of the present invention;

[0026] Figure 6This is a schematic cross-sectional view of the overall structure provided in an embodiment of the present invention;

[0027] Figure 7 This is a partial schematic diagram of the toothed disc structure provided in an embodiment of the present invention;

[0028] Figure 8 Provided for embodiments of the present invention Figure 7 Enlarged schematic diagram of the structure at point A in the middle;

[0029] Figure 9 This is a partial schematic diagram of the second gear structure provided in an embodiment of the present invention;

[0030] Figure 10 Provided for embodiments of the present invention Figure 9 Enlarged schematic diagram of the structure at point B;

[0031] Figure 11 An exploded view of the separator component structure provided in an embodiment of the present invention.

[0032] In the picture:

[0033] 1. Feeding bin; 2. Feeding compartment; 3. Variable pitch support; 4. Rollers; 5. Lifting assembly; 6. Dividing assembly;

[0034] 11. First water-permeable hole; 12. Slide rail;

[0035] 51. Base plate; 52. Traction machine; 53. Traction rope; 54. Second water permeable hole; 55. First slide bar; 56. Threaded groove; 57. Baffle; 58. Water permeable groove; 59. First gear; 510. Tooth plate; 511. Hollowed-out turntable; 512. Filter screen; 513. Inclined plate;

[0036] 61. Gear plate; 62. Rack; 63. First spring; 64. Base; 65. Lead screw; 66. Round rod; 67. Second gear; 68. Second slide rod; 69. First frame; 610. Second frame; 611. Separator net; 612. Round hole; 613. Transmission belt. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0038] It is understood that the terms “first,” “second,” etc., used in this application may be used herein to describe various elements, but unless otherwise stated, these elements are not limited by these terms. These terms are used only to distinguish one element from another.

[0039] like Figures 7 to 11As shown, in one embodiment, a feeding device for cage-type fish farming is proposed, including a cage 1, a feeding chamber 2, a variable-pitch support 3, and rollers 4. The variable-pitch support 3 is installed on both sides of the feeding chamber 2, and the rollers 4 are installed on the end sides of the variable-pitch support 3. The feeding chamber 2 is located above the cage 1, and further includes:

[0040] The lifting component 5 is located inside the tank 1 and is used to adjust the feeding depth of the fish;

[0041] A separating component 6 is installed inside the tank 1 to separate and intercept farmed fish of different sizes. The separating component 6 includes a base 64, which is fixedly connected to the inner wall of the tank 1. A lead screw 65 is rotatably connected to the top of the base 64. A round rod 66 is fixedly connected to the top of the lead screw 65. A second sliding rod 68 is fixedly connected to the top of the base 64. A first frame 69 is fixedly connected to the inner wall of the tank 1 and is fitted onto the outer wall of the round rod 66. A second frame 610 is slidably connected to the surface of the second sliding rod 68 and slides with the lead screw 65. A separating net 611 is fixedly connected between the first frame 69 and the second frame 610.

[0042] like Figure 11 As shown, in a preferred embodiment of the present invention, a geared disc 61 is symmetrically rotatably connected to the top of the box 1, a rack 62 is symmetrically slidably connected to the bottom of the variable pitch bracket 3, a first spring 63 is fixedly connected between the rack 62 and the variable pitch bracket 3, the rack 62 meshes with the geared disc 61, a second gear 67 is fixedly connected to the top of the round rod 66, a transmission belt 613 is drivingly connected between the second gear 67 and the geared disc 61, and round holes 612 are evenly opened on the surface of the partition net 611.

[0043] like Figure 11 As shown, in another preferred embodiment of the present invention, when the second frame 610 is located at the top of the lead screw 65, the separator 611 is in a completely folded state between the first frame 69 and the second frame 610; when the second frame 610 is located at the bottom of the lead screw 65, the separator 611 is in a flattened state between the first frame 69 and the second frame 610.

[0044] like Figures 1 to 3 As shown, in another preferred embodiment of the present invention, the bottom of the tank 1 is evenly provided with first water permeable holes 11, the first water permeable holes 11 are located below the base 64, and the top of the tank 1 is symmetrically fixedly connected with slide rails 12, and the rollers 4 are in rolling cooperation with the slide rails 12.

[0045] In practical application, the staff adjusts the variable-distance bracket 3 according to the width of the tank 1 so that the end of the variable-distance bracket 3 is mounted on the slide rail 12. Then, the staff adds fish food into the feeding chamber 2, starts the equipment to make the roller 4 rotate and drive the feeding chamber 2 and the variable-distance bracket 3 to slide back and forth on the tank 1, feeding fish food into the tank 1.

[0046] When the variable pitch bracket 3 slides on the slide rail 12 to the middle of the slide rail 12, the rack 62 at the bottom of the variable pitch bracket 3 will mesh with the gear plate 61. During the movement of the variable pitch bracket 3, the gear plate 61 will be driven to rotate at the top of the box barrel 1. When the gear plate 61 rotates, it will drive the second gear 67 to rotate together through the transmission belt 613. When the second gear 67 rotates, it will drive the round rod 66 and the lead screw 65 to rotate together. At this time, because the second frame 610 and the lead screw 65 are in sliding fit, and can only slide vertically due to the limitation of the second slide rod 68, the second frame 610 will slide downward when the lead screw 65 rotates. After the second frame 610 slides downward, the distance between the first frame 69 and the second frame 610 increases. The partition net 611, which was originally in a folded state, unfolds into a plane during the downward movement of the second frame 610.

[0047] When it is necessary to feed the fish in the tank 1, the staff first slides the bottom plate 51 upward until it touches the base 64. After the bottom plate 51 moves upward, the fish inside the tank 1 are forced to the upper part of the inner cavity of the tank 1. At this time, because the first water permeable hole 11 is not opened on the upper surface of the tank 1, the inner cavity of the tank 1 and the outside of the tank 1 are sealed by the tank 1 and the bottom plate 51 together after the bottom plate 51 moves upward. The water flow in the upper part of the inner cavity of the tank 1 slows down, and the fish will be confined to the area where the water flow in the upper part of the inner cavity of the tank 1 is slower. After the fish food is fed, the fish food is not affected by the water flow and falls slowly in the water, providing the fish with sufficient time to eat in the water. This reduces the problem of fish food being wasted due to fish not eating in time and water flow impact, and improves the feeding efficiency of fish food.

[0048] Smaller fish are at a disadvantage when being fed in a concentrated manner and have difficulty obtaining food. After the dividing net 611 is flattened, the upper area of ​​the inner cavity of the tank 1 is divided by the second set of frames 610. After the dividing net 611 is flattened, the larger fish will be confined to the middle of the inner cavity of the tank 1, while the smaller fish can swim to both sides of the tank 1 through the round holes 612 on the dividing net 611, thus separating the larger and smaller fish. As the feeding chamber 2 slides back and forth on the tank 1, the fish food will be placed into the three areas of the inner cavity of the tank 1 divided by the second set of frames 610, thus ensuring that the smaller fish do not have to compete with the larger fish to obtain food, thereby improving the survival rate of the smaller fish in concentrated breeding.

[0049] like Figures 1 to 5As shown, in another preferred embodiment of the present invention, the lifting assembly 5 includes a bottom plate 51 slidably connected inside the tank 1, a traction machine 52 symmetrically installed on the top of the tank 1, a traction rope 53 connected between the traction machine 52 and the bottom plate 51, second water-permeable holes 54 evenly penetrated on both sides of the surface of the bottom plate 51, a first sliding rod 55 symmetrically rotatably connected to the bottom of the bottom plate 51, threaded grooves 56 symmetrically opened on the surface of the first sliding rod 55, a baffle 57 slidably connected between the two first sliding rods 55, the baffle 57 slidingly engaging with the threaded grooves 56, and water-permeable grooves 58 evenly opened on the baffle 57.

[0050] like Figure 4 As shown, in another preferred embodiment of the present invention, when the bottom plate 51 is located at the bottom of the tank 1, the water permeable groove 58 is perpendicularly connected to the second water permeable hole 54. When the bottom plate 51 moves to the top inside the tank 1, the baffle 57 blocks and closes the second water permeable hole 54.

[0051] like Figure 6 As shown, in another preferred embodiment of the present invention, a first gear 59 is fixedly connected to the surface of the first slide bar 55, and a toothed plate 510 is fixedly connected to the inner wall of the barrel 1, with the first gear 59 and the toothed plate 510 meshing.

[0052] like Figures 1 to 6 As shown, in another preferred embodiment of the present invention, a hollow turntable 511 is rotatably connected to the middle of the base plate 51, a filter screen 512 is fixedly connected to the bottom of the hollow turntable 511, and inclined plates 513 are uniformly fixedly connected to the bottom of the hollow turntable 511.

[0053] like Figure 4 As shown, in another preferred embodiment of the present invention, a hook is fixedly connected to the base plate 51.

[0054] In practical application, when the bottom plate 51 is located at the bottom of the tank 1, the aquaculture area inside the tank 1 is connected to the outside through the first water permeable hole 11 and the second water permeable hole 54, thereby keeping the water in a flowing state, increasing the oxygen content of the water and quickly circulating and purifying the water.

[0055] When feeding is required, the operator starts the traction machine 52. The traction machine 52 retracts the traction rope 53, causing the bottom plate 51 to slide upward inside the tank 1. During the sliding process on the bottom plate 51, the first gear 59 will mesh with the toothed plate 510 on the inner wall of the tank 1 and rotate. When the first gear 59 rotates, it will drive the first sliding rod 55 to rotate together. The baffle 57, which slides with the threaded groove 56, will slide at the bottom of the second water permeable hole 54. After the baffle 57 slides, the water permeable channel 58 is no longer in a continuous state with the second water permeable hole 54. The second water permeable hole 54 will be blocked and closed by the baffle 57, thereby reducing the impact of external water flow on the water in the inner cavity of the tank 1 during feeding, keeping the water in the inner cavity of the tank 1 in a stable state, slowing down the falling speed of the fish food in the water, and making it easier for the fish to eat.

[0056] When water flows over the bottom of the base plate 51, the inclined plate 513 will drive the perforated turntable 511 to rotate on the base plate 51 according to the direction of water flow. When water flows under the perforated turntable 511, the flow rate under the perforated turntable 511 is faster than that at the top. Through the negative pressure, the impurities deposited on the base plate 51 will flow out through the filter screen 512 to the bottom of the perforated turntable 511, thereby ensuring that the surface of the base plate 51 remains clean during aquaculture and preventing the accumulation of impurities such as feces and fish food from deteriorating the water quality.

[0057] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

[0059] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A feeding device for cage-type fish farming, comprising a cage (1), a feeding chamber (2), a variable-pitch support (3), and rollers (4), wherein the variable-pitch support (3) is installed on both sides of the feeding chamber (2), the rollers (4) are installed on the end sides of the variable-pitch support (3), and the feeding chamber (2) is located above the cage (1), characterized in that, Also includes: The lifting component (5) is located inside the tank (1) and is used to adjust the feeding depth of the fish; A separating component (6) is installed inside the tank (1) to separate and intercept farmed fish of different sizes. The separating component (6) includes a base (64), which is fixedly connected to the inner wall of the tank (1). A lead screw (65) is rotatably connected to the top of the base (64). A round rod (66) is fixedly connected to the top of the lead screw (65). A second sliding rod (68) is fixedly connected to the top of the base (64). A first frame (69) is fixedly connected to the inner wall of the tank (1). The first frame (69) is fitted onto the outer wall of the round rod (66). A second frame (610) is slidably connected to the surface of the second sliding rod (68). The second frame (610) is slidably engaged with the lead screw (65). A separating net (611) is fixedly connected between the first frame (69) and the second frame (610).

2. The feeding equipment for cage-type fish farming according to claim 1, characterized in that, The top of the bin (1) is symmetrically rotatably connected to a toothed disc (61), the bottom of the variable pitch bracket (3) is symmetrically slidably connected to a rack (62), a first spring (63) is fixedly connected between the rack (62) and the variable pitch bracket (3), the rack (62) meshes with the toothed disc (61), a second gear (67) is fixedly connected to the top of the round rod (66), a transmission belt (613) is connected between the second gear (67) and the toothed disc (61), and round holes (612) are evenly opened on the surface of the separator net (611).

3. The feeding equipment for cage-type fish farming according to claim 1, characterized in that, When the second frame (610) is located at the top of the lead screw (65), the separator (611) is in a completely folded state between the first frame (69) and the second frame (610). When the second frame (610) is located at the bottom of the lead screw (65), the separator (611) is in a flattened state between the first frame (69) and the second frame (610).

4. The feeding equipment for cage-type fish farming according to claim 1, characterized in that, The bottom of the container (1) is evenly provided with first water-permeable holes (11), which are located below the base (64). The top of the container (1) is symmetrically fixed with slide rails (12), and the rollers (4) are in rolling cooperation with the slide rails (12).

5. A feeding device for cage-type fish farming according to claim 1, characterized in that, The lifting assembly (5) includes a bottom plate (51) slidably connected inside the tank (1). A traction machine (52) is symmetrically installed on the top of the tank (1). A traction rope (53) is connected between the traction machine (52) and the bottom plate (51). Second water-permeable holes (54) are evenly opened through both sides of the surface of the bottom plate (51). A first sliding rod (55) is symmetrically rotatably connected to the bottom of the bottom plate (51). Threaded grooves (56) are symmetrically opened on the surface of the first sliding rod (55). A baffle (57) is slidably connected between the two first sliding rods (55). The baffle (57) is slidably engaged with the threaded groove (56). Water-permeable grooves (58) are evenly opened on the baffle (57).

6. A feeding device for cage-type fish farming according to claim 5, characterized in that, When the bottom plate (51) is located at the bottom of the tank (1), the permeable groove (58) is vertically connected to the second permeable hole (54). When the bottom plate (51) moves to the top inside the tank (1), the baffle (57) blocks and closes the second permeable hole (54).

7. A feeding device for cage-type fish farming according to claim 5, characterized in that, The surface of the first slide bar (55) is fixedly connected to a first gear (59), and the inner wall of the box (1) is fixedly connected to a toothed plate (510). The first gear (59) and the toothed plate (510) mesh.

8. A feeding device for cage-type fish farming according to claim 5, characterized in that, A hollow turntable (511) is rotatably connected to the middle of the base plate (51), a filter screen (512) is fixedly connected to the bottom of the hollow turntable (511), and inclined plates (513) are evenly fixedly connected to the bottom of the hollow turntable (511).

9. A feeding device for cage-type fish farming according to claim 5, characterized in that, A hook is fixedly connected to the base plate (51).

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