Fishing device for bighead carps

Abstract

The invention relates to the technical field of fish catching, and particularly discloses a bighead carp catching device which comprises a purse seine assembly used for breeding and a positioning plate arranged at the top of the inner side of the purse seine assembly, and a telescopic piece and a catching net used for lifting a caught target object are installed at the bottom of the positioning plate; the fence assembly comprises a fence frame, a breeding area is formed in the inner side of the fence frame, supporting bases are arranged on the two sides of the inner wall of the breeding area, and the two ends of each supporting base are matched with one end of a telescopic piece and used for fixing a fishing net. The supporting seats on the two sides of the inner wall of the purse seine assembly are matched with the telescopic pieces and the supporting frames, the fishing net is stably fixed in a culture area, the problem that fish schools are difficult to concentrate in the center area of the fishing net during net pulling fishing is solved, the probability that bighead carps escape is reduced, and the fishing efficiency is improved. For example, in actual fishing, the fishing net can be accurately placed in an area where bighead carps are dense through close fit of the supporting frame and the supporting base, and the fishing success rate is effectively increased.

Description

Technical Field

[0001] This invention relates to the field of fish fishing technology, specifically to a fishing device for bighead carp. Background Technology

[0002] Some large silver carp farming areas are around 30,000 to 50,000 mu (approximately 2,000 to 3,000 hectares), with a water depth of 2 to 3 meters. They also require abundant water sources, good water quality, convenient irrigation and drainage, a quiet surrounding environment, and no industrial pollution.

[0003] After silver carp mature, they are generally harvested in autumn or winter. At this time, the water temperature is lower, the fish's activity level is reduced, and the harvesting operation is relatively easy. In order to improve the utilization rate of the pond and the aquaculture benefits, a rotational harvesting and stocking method can be adopted. That is, during the aquaculture process, according to the growth of the fish, fish that have reached market size are harvested in a timely manner, and an appropriate amount of fish fry are added at the same time to maintain a reasonable density of fish in the pond.

[0004] There are two main methods of fishing: seine net fishing and trap fishing. The former is suitable for large-scale aquaculture areas, while the latter is suitable for small ponds or shallow water areas. When using seine net fishing, the process is relatively cumbersome, and it is difficult to ensure that the fish are in the center of the net during fishing, resulting in low fishing efficiency. In addition, it is not convenient to screen out fish that do not meet the required size. Based on this, this application provides a fishing device for bighead carp. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the present invention provides a fishing device for bighead carp, which solves the problem that the fishing process is relatively cumbersome and it is difficult to ensure that the fish are in the center of the fishing net during the fishing process, thus resulting in low fishing efficiency.

[0006] The present invention provides a fishing device for bighead carp, comprising a net enclosure assembly for aquaculture and a positioning plate disposed on the top inner side of the net enclosure assembly, wherein a telescopic component is installed at the bottom of the positioning plate for lifting the fishing net for catching the target fish. The enclosure assembly includes an enclosure frame, an aquaculture area is provided on the inner side of the enclosure frame, and support seats are provided on both sides of the inner wall of the aquaculture area. The two ends of the support seats are adapted to one end of the telescopic component for fixing the fishing net. The fishing net has a support frame on its outer side, and the outer side of the support frame is adapted to the support base.

[0007] As a further improvement of the present invention, the two ends of the enclosure frame are respectively provided with water inlet and water outlet for the flow of water inside the enclosure frame to meet the needs of aquaculture.

[0008] As a further improvement of the present invention, the support frame includes a frame body, a boss is provided on the inner side of the frame body, and positioning blocks are installed at equal intervals on the boss. The positioning blocks are equipped with buckles for fixing the fishing net.

[0009] As a further improvement of the present invention, the combination of multiple buckles and positioning blocks forms a weaving area for adjusting the size of different target objects to be caught.

[0010] As a further improvement of the present invention, the bottom of the frame is provided with equidistant positioning holes along the outer perimeter of the frame, and horizontal and vertical bars are respectively provided at the positioning holes for supporting the fishing net.

[0011] As a further improvement of the present invention, there are two frames arranged symmetrically, and two combined areas are provided at the ends of the two frames that are far apart from each other, and a driving component is installed at the combined area.

[0012] As a further improvement of the present invention, a combined groove and a combined protrusion are respectively provided on the side of the two frames that are close to each other. The combined groove and the combined protrusion are adapted to force the two frames to form a whole.

[0013] As a further improvement of the present invention, the driving component includes a drive motor, with output shafts at both ends of the drive motor. A connecting member is provided on the outer side of each output shaft, and the connecting member is adapted to the inner side of the assembly area. This is used to control the rotation of the support frame.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention utilizes the matching of support seats on both sides of the inner wall of the enclosure assembly with telescopic components and support frames to stably fix the fishing net within the aquaculture area. This avoids the problem of difficulty in concentrating fish in the center of the fishing net during seine netting, reducing the possibility of bighead carp escaping and improving fishing efficiency. For example, in actual fishing, the tight fit between the support frame and the support seats allows the fishing net to be accurately placed in areas with high concentrations of bighead carp, effectively improving the success rate of fishing. The drive unit can control the rotation of the support frame. Based on the distribution of bighead carp and the fishing needs, the rotation direction and angle of the support frame can be adjusted by the forward and reverse rotation and speed of the drive motor, so that the fishing net can cover bighead carp in different locations, further improving the flexibility and efficiency of fishing and solving the problem that traditional seine net fishing is difficult to fully cover fish in large ponds. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a three-dimensional structural diagram of the fence component of the present invention; Figure 2 This is a top view of the fence assembly of the present invention; Figure 3 For the present invention Figure 2 Schematic diagram of the cross-sectional structure of the middle AA section; Figure 4 This is a schematic diagram of the combined structure of the enclosure component and the fishing net of the present invention; Figure 5 This is a top view of the support frame structure of the present invention; Figure 6 This is a bottom view of the support frame structure of the present invention; Figure 7 This is a schematic diagram of the three-dimensional structure of the support frame of the present invention; Figure 8 This is a top view of the support frame structure of the present invention; Figure 9 This is a schematic diagram of the support frame assembly structure in Embodiment 2 of the present invention; Figure 10 For the present invention Figure 5 Enlarged structural diagram at point A in the middle.

[0016] In the diagram: 1. Enclosure assembly; 2. Positioning plate; 3. Telescopic component; 4. Connector; 5. Support base; 6. Drive component; 7. Fishing net; 8. Support frame; 9. Assembly area; 11. Enclosure frame; 12. Aquaculture area; 13. Water inlet; 14. Water outlet; 81. Frame; 82. Positioning block; 83. Buckle; 84. Woven area; 85. Vertical bar; 86. Horizontal bar; 87. Positioning hole; 88. Boss; 89. Combined groove; 810. Combined protrusion. Detailed Implementation

[0017] The following illustrations disclose several embodiments of the present invention. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details are not intended to limit the invention. That is, in some embodiments of the invention, these physical details are not essential. Furthermore, for the sake of simplicity, some conventional structures and components will be shown in the illustrations in a simple schematic manner.

[0018] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0019] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 as well as Figure 5 In practice, seine net fishing is difficult because fish are mobile and dispersed, making it hard to ensure they remain in the center of the net. This allows some fish to escape, reducing fishing efficiency. Furthermore, after catching the fish, separating those that don't meet the size requirements adds extra workload and time, making the operation inconvenient. Therefore, this application provides a fishing device for silver carp, including a netting assembly 1 for aquaculture and a positioning plate 2 located on the top inner side of the netting assembly 1. A telescopic component 3 is installed at the bottom of the positioning plate 2 to lift the netting 7 used to catch the target fish. The enclosure assembly 1 includes an enclosure frame 11, an aquaculture area 12 is provided on the inner side of the enclosure frame 11, and support seats 5 are provided on both sides of the inner wall of the aquaculture area 12. The two ends of the support seats 5 are adapted to one end of the telescopic component 3 for fixing the fishing net 7. A support frame 8 is provided on the outside of the fishing net 7, and the outside of the support frame 8 is adapted to the support base 5.

[0020] The fencing frame 11 is made of sturdy and durable materials, such as concrete or high-strength plastic, to ensure that it can withstand certain water pressure and the effects of the external environment. The fencing frame 11 is usually rectangular or square in shape, which facilitates construction and subsequent management operations.

[0021] The aquaculture area 12, located inside the enclosure frame 11, is the living and growing space for the bighead carp. The size of the aquaculture area 12 is determined according to actual aquaculture needs, and is generally planned in conjunction with the stocking density and expected yield of the bighead carp. Its inner wall is smoothed to reduce harm to the bighead carp and also to help maintain water quality.

[0022] Support seats 5 are installed on both sides of the inner wall of the aquaculture area 12. The support seats 5 are usually made of metal materials, such as stainless steel, which have high strength and corrosion resistance. The support seats 5 are elongated and have specific structures at both ends that are adapted to one end of the telescopic component 3. This adaptation structure can be a slot or a combination of a protrusion and a groove, the purpose of which is to firmly fix the telescopic component 3 to the support seats 5, thereby achieving stable support and fixation for the fishing net 7.

[0023] The telescopic component 3 is installed at the bottom of the positioning plate 2, which is located on the top inner side of the enclosure assembly 1. It can be fixed to the edge structure of the enclosure assembly 1 by bolts or welding. The telescopic component 3 is generally a hydraulic or electric telescopic rod with adjustable length. When fishing is required, the telescopic component 3 can extend to place the fishing net 7 into the aquaculture area 12; after fishing is completed, the telescopic component 3 can shorten to lift the fishing net 7 out of the water for subsequent processing of the caught silver carp.

[0024] A support frame 8 is provided on the outer side of the fishing net 7. The support frame 8 is also made of metal, such as aluminum alloy, which has a certain strength and light weight. The shape of the support frame 8 matches the shape of the fishing net 7, usually rectangular or circular. The outer side of the support frame 8 is designed with a structure that adapts to the support base 5, such as a protrusion that matches the slot of the support base 5. Through this adaptation structure, the support frame 8 can be stably installed on the support base 5, so that the fishing net 7 can be accurately positioned within the aquaculture area 12.

[0025] The fishing net 7 is made of high-strength nylon or metal mesh, and the mesh size is designed according to the size of the bighead carp to ensure effective catching of the target bighead carp while avoiding excessive damage to them. The edges of the fishing net 7 are tightly connected to the support frame 8, for example, by sewing or welding, to ensure that the fishing net 7 will not separate from the support frame 8 during use.

[0026] When it is necessary to harvest bighead carp, first activate the telescopic component 3 to extend it, and slowly lower the support frame 8 into the aquaculture area 12. Due to the compatible structure between the support frame 8 and the support base 5, the fishing net 7 is then installed in the area of ​​the support frame 8, forcing the fishing net 7 to be accurately positioned in the designated location. As the bighead carp swim in the aquaculture area 12, some of them will enter the fishing net 7. After a certain number of bighead carp have been harvested, activate the telescopic component 3 to shorten it, raising the fishing net 7 out of the water. At this point, the harvested bighead carp can be screened and processed. Bighead carp that meet the size requirements can be removed, while those that do not meet the size requirements can be returned to the aquaculture area 12 for continued aquaculture.

[0027] The fishing device with the above structure can solve the problems mentioned in the background art, such as the difficulty in concentrating fish in the central area of ​​the fishing net 7 and the inconvenience of screening fish that do not meet the target size. Through the cooperation of the support base 5 and the support frame 8, the fishing net 7 can be stably fixed in the aquaculture area 12, which improves the fishing efficiency and allows for convenient screening of fish after fishing.

[0028] Please see Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 as well as Figure 10 The enclosure frame 11 is provided with an inlet 13 and an outlet 14 at both ends, which are used for the flow of water inside the enclosure frame 11 to meet the needs of aquaculture.

[0029] The support frame 8 includes a frame body 81, with a boss 88 on the inner side of the frame body 81. Positioning blocks 82 are installed at equal intervals on the boss 88, and buckles 83 are installed on the positioning blocks 82 for fixing the fishing net 7.

[0030] The combination of multiple buckles 83 and positioning blocks 82 forms a weaving area 84, which is used to adjust the size of different target objects to be caught.

[0031] The bottom of the frame 81 has equidistant positioning holes 87 around its outer perimeter. Horizontal bars 86 and vertical bars 85 are respectively installed at the positioning holes 87 to support the fishing net 7.

[0032] One end of the enclosure frame 11 is equipped with a water inlet 13, which connects to an external water source pipe. The water source can be treated river water, lake water, or groundwater, ensuring that the water entering the enclosure frame 11 meets the water quality requirements for bighead carp farming. A valve is installed at the water inlet 13; by adjusting the valve's opening, the flow rate and volume of water entering the enclosure frame 11 can be controlled. During the farming process, the water inlet speed is adjusted appropriately according to the growth stage of the bighead carp and the water quality conditions. For example, during the vigorous growth period of the bighead carp, they require more oxygen and nutrients; at this time, the water inlet 13 can be appropriately increased to ensure the activity of the water flow inside the enclosure frame 11, providing a good living environment for the bighead carp.

[0033] The other end of the enclosure frame 11 is equipped with a water outlet 14, which is also connected to a drainage pipe. A valve is also installed at the water outlet 14 to control the drainage speed and volume. During daily aquaculture, the valve at the water outlet 14 is opened periodically to drain wastewater containing feces, uneaten feed, and other impurities from the enclosure frame 11, maintaining the cleanliness of the water within the enclosure frame 11. Simultaneously, by controlling the water flow at the inlet 13 and outlet 14, a water circulation system can be created within the enclosure frame 11, ensuring the water is always flowing, which is beneficial for the healthy growth of the bighead carp. When a thorough cleaning of the enclosure frame 11 or the harvesting of bighead carp is required, the valve at the water outlet 14 can be fully opened to quickly drain the water from the enclosure frame 11.

[0034] The main body of the support frame 8 is the frame 81, which is made of metal materials such as stainless steel or aluminum alloy, possessing a certain strength and corrosion resistance. A boss 88 is provided on the inner side of the frame 81, which is integrally formed during the manufacturing process of the frame 81. The function of the boss 88 is to provide an installation position for the positioning block 82, and at the same time increase the contact area between the frame 81 and the fishing net 7, thereby improving the stability of the support.

[0035] Positioning blocks 82, typically made of plastic or metal and rectangular in shape, are installed at equal intervals on the boss 88. The positioning blocks 82 are fixed to the boss 88 by bolts or welding. Each positioning block 82 is equipped with a clip 83, usually made of plastic and possessing a certain degree of elasticity. The function of the clips 83 is to secure the fishing net 7, holding its edges within the clips to prevent displacement during use.

[0036] Multiple clips 83 combined with positioning blocks 82 form a woven area 84. In practical use, the spacing and arrangement of the clips 83 can be adjusted according to the size requirements of different target fish (i.e., different sizes of silver carp). For example, when catching larger silver carp, the spacing between the clips 83 can be appropriately increased to make the mesh size of the fishing net 7 larger; when catching smaller silver carp, the spacing between the clips 83 can be decreased to make the mesh size of the fishing net 7 smaller. In this way, the size of the fishing net 7 can be flexibly adjusted, improving the targeting and efficiency of the fishing.

[0037] The bottom of the frame 81 has equidistant positioning holes 87 along its outer perimeter. The positioning holes 87 are round holes pre-drilled during the manufacturing process of the frame 81, and their diameter is designed according to the dimensions of the horizontal bar 86 and the vertical bar 85 to ensure that the horizontal bar 86 and the vertical bar 85 can be tightly inserted into the positioning holes 87.

[0038] A horizontal bar 86 and a vertical bar 85 are respectively installed at the positioning hole 87. Both the horizontal bar 86 and the vertical bar 85 are made of metal materials, such as steel pipes. The function of the horizontal bar 86 and the vertical bar 85 is to support the fishing net 7 and enhance its structural strength. During installation, the horizontal bar 86 and the vertical bar 85 are inserted into the corresponding positioning hole 87, and the horizontal bar 86 and the vertical bar 85 intersect to form a mesh-like support structure, allowing the fishing net 7 to better withstand the weight of the bighead carp and the impact of the water flow. At the same time, this support structure can also prevent the fishing net 7 from deforming in the water, ensuring the normal use of the fishing net 7. When it is necessary to replace the fishing net 7 or maintain the support frame 8, the horizontal bar 86 and the vertical bar 85 can be easily removed from the positioning hole 87.

[0039] Please see Figure 9In this embodiment, and to facilitate better fishing, this embodiment mainly addresses the limitations of the frame 81, as follows: There are two frames 81 arranged symmetrically. Two combination areas 9 are provided at the ends of the two frames 81 that are far apart from each other. A drive unit 6 is installed in the combination area 9.

[0040] On the side of the two frames 81 that are close to each other, there are respectively a combined groove 89 and a combined protrusion 810. The combined groove 89 and the combined protrusion 810 are adapted to force the two frames 81 to form a whole.

[0041] The driving component 6 includes a drive motor, with output shafts at both ends. Connectors 4 are located on the outer sides of the output shafts and are adapted to the inner side of the assembly area 9. This is used to control the rotation of the support frame 8.

[0042] There are two frames 81, symmetrically arranged within the aquaculture area 12 of the enclosure assembly 1. This symmetrical arrangement makes the entire fishing net 7 and support frame 8 more stable, facilitating smooth fishing operations. Each of the two frames 81 has two assembly areas 9 at its far ends. These assembly areas 9 are specific locations pre-reserved during the manufacturing process of the frames 81, and are rectangular grooves used to install the drive unit 6. The dimensions of the assembly areas 9 are precisely designed according to the size of the drive unit 6 to ensure accurate installation.

[0043] Two frames 81 are respectively provided with a combined groove 89 and a combined protrusion 810 on their adjacent sides. The combined groove 89 is a concave groove machined into the side of one of the frames 81, while the combined protrusion 810 is a block-shaped structure protruding from the corresponding side of the other frame 81. The shapes and sizes of the combined groove 89 and the combined protrusion 810 are adapted to each other, so that when the two frames 81 are close together, the combined protrusion 810 can be tightly embedded in the combined groove 89. This adapting structure is like a splicing... Figure 1 This arrangement allows the two frames 81 to be tightly joined together, forming a single unit. In actual operation, when the fishing net 7 needs to be placed into or removed from the aquaculture area 12, the two frames 81 maintain a stable connection through the cooperation of the combined groove 89 and the combined protrusion 810, preventing separation during operation and ensuring the normal use of the fishing net 7.

[0044] The driving component 6 is a drive motor, a common type of electric device that converts electrical energy into mechanical energy to achieve rotation. The drive motor has sufficient power to drive the rotation of the support frame 8. It is installed within the assembly area 9 and secured with bolts or other means to ensure that it does not wobble or shift during operation.

[0045] The drive motor has output shafts at both ends. The output shafts are a crucial component of the motor, transmitting the power generated. Made of metal, the output shafts possess high strength and wear resistance to ensure they will not be damaged during long-term use. The diameter and length of the output shafts are designed according to the drive motor model and specific requirements.

[0046] A connector 4 is provided on the outer side of the output shaft. The connector 4 is typically made of metal or plastic, and is annular in shape with an internal hole that fits the output shaft. It is fixed to the output shaft by interference fit or key connection. The outer shape of the connector 4 matches the inner shape of the assembly area 9, allowing it to be tightly installed within the assembly area 9. When the drive motor starts, the output shaft drives the connector 4 to rotate, and due to the fit between the connector 4 and the assembly area 9, this in turn drives the support frame 8 to rotate.

[0047] During fishing operations, the drive motor is activated based on the distribution of bighead carp and fishing requirements. As the drive motor starts running, its output shafts rotate at both ends, and the connecting parts 4 on the output shafts also rotate. Due to the adaptive connection between the connecting parts 4 and the assembly area 9, the support frame 8 rotates along with the connecting parts 4. By controlling the forward and reverse rotation and the speed of the drive motor, the rotation direction and angle of the support frame 8 can be precisely controlled. For example, when it is necessary to adjust the position of the fishing net 7 to better catch bighead carp, the support frame 8 can be rotated at a certain angle using the drive part 6, allowing the fishing net 7 to cover the area where the bighead carp are concentrated. This rotatable support frame 8 design improves the flexibility and efficiency of fishing and can better adapt to different fishing scenarios.

[0048] The above description is merely an embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A fishing device for bighead carp, comprising a net enclosure assembly (1) for aquaculture and a positioning plate (2) disposed on the top inner side of the net enclosure assembly (1), wherein a telescopic member (3) is installed at the bottom of the positioning plate (2) for lifting the fishing net (7) for catching the target fish. Its features are: The enclosure assembly (1) includes an enclosure frame (11), an aquaculture area (12) is provided on the inner side of the enclosure frame (11), and support seats (5) are provided on both sides of the inner wall of the aquaculture area (12). The two ends of the support seats (5) are adapted to one end of the telescopic component (3) for fixing the fishing net (7). The fishing net (7) is provided with a support frame (8) on the outside, and the outside of the support frame (8) is adapted to the support base (5).

2. The fishing device for bighead carp according to claim 1, characterized in that: The enclosure frame (11) is provided with an inlet (13) and an outlet (14) at both ends, which are used for the flow of water inside the enclosure frame (11) to meet the needs of aquaculture.

3. The fishing device for bighead carp according to claim 1, characterized in that: The support frame (8) includes a frame body (81), and a boss (88) is provided on the inner side of the frame body (81). Positioning blocks (82) are installed at equal intervals on the boss (88), and buckles (83) are installed on the positioning blocks (82) for fixing the fishing net (7).

4. The fishing device for bighead carp according to claim 3, characterized in that: The combination of multiple buckles (83) and positioning blocks (82) forms a woven area (84) for adjusting the size of different target objects to be caught.

5. A fishing device for bighead carp according to claim 3, characterized in that: The bottom of the frame (81) is provided with equidistant positioning holes (87) around the outer perimeter of the frame (81). A horizontal bar (86) and a vertical bar (85) are respectively provided at the positioning holes (87) to support the fishing net (7).

6. A fishing device for bighead carp according to claim 3, characterized in that: There are two frames (81) arranged symmetrically. Two combined areas (9) are provided at the ends of the two frames (81) that are far apart from each other. A driving component (6) is installed at the combined area (9).

7. A fishing device for bighead carp according to claim 3, characterized in that: The two frames (81) are respectively provided with a combined groove (89) and a combined protrusion (810) on the side close to each other. The combined groove (89) and the combined protrusion (810) are adapted to force the two frames (81) to form a whole.

8. A fishing device for bighead carp according to claim 6, characterized in that: The driving component (6) includes a driving motor, both ends of which are provided with output shafts. A connector (4) is provided on the outside of the output shaft. The connector (4) is adapted to the inside of the combined area (9) and is used to control the rotation of the support frame (8).

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