Hook lifting protection device for tuna longline

Abstract

The utility model discloses a tuna longline hook lifting protection device which comprises a first fixing support 10, a second fixing support 11, a fixing buckle 5, a baffle 6, a fixed pulley 7, bolts, a bolt hole 3 and a U-shaped hole 9, the bolts comprise a first bolt, a second bolt 4 and a third bolt 8, and the first fixing support 10 and the second fixing support 11 are respectively provided with corresponding screw holes. The second bolt 4 is connected to the second bolt 4 through screw holes in the first fixing support 10 and the second fixing support 11 and the top of the baffle 6, during working, the baffle 6 is vertically downward and is perpendicular to the cross section of the fixed pulley 7, the fixed pulley 7 is fixed between the first fixing support 10 and the second fixing support 11 through the third bolt 8, and a bolt hole 3 is formed in the upper portion of the second fixing support 11. The device is simple in structure, the tuna longline fishing sub-line can be effectively prevented from entering the ship along with the bus, the sub-line hook hung on the bus is stopped, and sailors can take back the sub-line in time.

Description

Technical Field

[0001] The utility model relates to a tuna longline fishing hook lifting device and an operation method thereof, in particular to a device for carrying a tuna longline fishing main line and preventing the sub-line speed from being too fast to be retracted immediately. Background Art

[0002] The tuna family is a family of marine fish under the class Osteichthyes, order Scombriformes, and family Scombridae. The two ends of the tuna are conical, the mouth is moderate, and the teeth are well-developed. Tuna longline fishing is a traditional way of catching tuna and is usually used for large-scale fishing. Tuna fishing boats are usually equipped with special tuna longline fishing equipment, including large-capacity fishing line reels, fishing hooks of various sizes, buoys and weights, etc. Refrigeration facilities are also required on the boat to store the caught tuna. The operation process of tuna longline fishing gear is generally to first put the pre-prepared fishing hooks with bait and floats into the sea through a hook-laying machine. After several hours, the crew first locates the float, connects the main line to the hook-lifting machine, and controls the rotation speed of the hook-lifting machine by controlling the valve to retract the main line and the fishing hooks and catches hanging on the sub-lines of the main line.

[0003] When the existing tuna longline fishing boats are lifting hooks during operation, due to the relatively fast and unstable hook-lifting speed of the control valve, the crew often fails to immediately remove the branch lines hanging on the main line, which affects work efficiency and personal safety. Moreover, during the process of retrieving the tuna longline fishing hooks, the main line of the longline sometimes slips out above the pulley. Therefore, a device is proposed to block the sub-line of the tuna longline fishing from following the main line into the ship's interior, prevent the main line of the longline from deviating, stop the sub-line hooks hanging on the main line, and enable the crew to retract the sub-line in time. Summary of the Invention

[0004] The purpose of the utility model is to provide a tuna longline fishing hook lifting protection device, which has a simple and reasonable structure, can effectively block the sub-line of the tuna longline fishing from following the main line into the ship's interior, prevent the main line of the longline from deviating out of the pulley, stop the sub-line hooks hanging on the main line, and enable the crew to retract the sub-line in time.

[0005] The present application is realized through the following technical solutions:

[0006] A tuna longline hook protection device, comprising a first fixed bracket 10, a second fixed bracket 11, a fixed buckle 5, a baffle 6, a fixed pulley 7, bolts, bolt holes 3 and U-shaped holes 9. The bolts include a first bolt, a second bolt 4, and a third bolt 8. Corresponding screw holes are respectively provided on the first fixed bracket 10 and the second fixed bracket 11. The second bolt 4 passes through the screw holes on the first fixed bracket 10 and the second fixed bracket 11, and the top of the baffle 6 is connected to the second bolt 4. During operation, the baffle 6 is vertically downward and perpendicular to the cross-section of the fixed pulley 7. The fixed pulley 7 is fixed between the first fixed bracket 10 and the second fixed bracket 11 through the third bolt 8. A bolt hole 3 is provided in the upper part of the second fixed bracket 11, and the first bolt passes through the bolt hole 3 to suspend the entire protection device in the air or fix it in the working position.

[0007] Further, there are two fixed buckles 5, which are respectively located on the inner side surfaces of the second fixed bracket 11, and are used to fix the baffle 6 in the vertical position to ensure that the baffle 6 will not slide or move during the working process.

[0008] Further, the baffle 6 is a square partition board, which is fixed between the first fixed bracket 10 and the second fixed bracket 11 through the second bolt 4. The baffle 6 can rotate freely on the second bolt 4, and the position of the baffle 6 can be flexibly adjusted to meet different operation requirements.

[0009] Further, the fixed pulley 7 is installed at the central position of the entire protection device and is fixed through the third bolt 8. The fixed pulley 7 is used to guide and support the main line 2 of the longline to ensure that the main line 2 can run smoothly and avoid entanglement or friction.

[0010] Further, the U-shaped hole 9 is arranged below the second bolt 4 at the upper part of the protection device, and the U-shaped hole 9 is used to control the main line 2 of the longline above the fixed pulley 7.

[0011] Further, after the main line 2 passes through the U-shaped hole 9, it is guided by the fixed pulley 7 to ensure that the main line 2 maintains the correct position and direction in the protection device.

[0012] Further, the first fixed bracket 10 and the second fixed bracket 11 are made of corrosion-resistant metal materials, and the outer layer of the baffle 6 is wrapped with shock-absorbing materials to prevent ejection after impact.

[0013] The technical principle of the present utility model is as follows: In view of the problem that during the process of hooking up tuna longline fishing, the speed of the main line is relatively fast, resulting in the failure to timely remove the sub-line suspended on the main line, an optimization is carried out. Above the fixed pulley through which the main line passes, a detachable and openable baffle is designed to solve the situation where the sub-line is forced to stop due to the relatively large hook suspended on the main line. The presence of the baffle allows the main line to pass through the fixed pulley smoothly, while the hook will stop due to the obstruction of the baffle, providing convenience and time for the crew to timely retrieve the sub-line. When installing the longline fishing main line, the main line is installed through the design of the U-shaped hole, which not only effectively prevents the main line from deviating from the fixed pulley during operation but also saves operation time.

[0014] Beneficial effects: The various components of the protection device of the present application are precisely matched, enabling it to provide effective protection during use while ensuring the flexibility and stability of operation. Specifically, it includes the following aspects:

[0015] 1. The design not only improves the efficiency of longline fishing operations but also greatly reduces the risk of damage to tuna during the hooking process.

[0016] 2. Prevent the sub-line from entering the ship: The device structure of the present application is simple and can effectively block the tuna longline fishing sub-line from following the main line into the ship's interior. Through the cooperation of the baffle and the fixed pulley, the hook is forced to stop, and the crew can timely handle and retrieve the sub-line.

[0017] 3. Improve work efficiency: During the process of retrieving the hook suspended on the longline fishing main line, due to the close cooperation between the baffle and the fixed pulley, the hook will automatically stop, eliminating the need for the crew to brake the valve in advance to reduce the speed in order to remove the hook, thus greatly improving work efficiency.

[0018] 4. Reduce work risks: It effectively prevents the situation where the suspended sub-line and fishing hook enter the cabin along the main line on the fixed pulley, reducing accidental risks during the work process.

[0019] 5. Simple installation of the main line: Installing the main line through the U-shaped hole is not only simple and fast but also can stabilize the running path of the main line, avoiding the situation where the main line may deviate from the fixed pulley, further improving the efficiency and safety of operation.

[0020] 6. It has significant application value and technical advantages in tuna longline fishing operations. Description of the Drawings

[0021] Figure 1 It is a schematic diagram of the working state of a tuna longline fishing hooking protection device of the present utility model.

[0022] Figure 2 It is the front view of an embodiment of the present utility model.

[0023] Figure 3 Side view of an embodiment of the present utility model.

[0024] Each symbol in the figure represents: 1. Hook; 2. Busbar; 3. Bolt hole; 4. Second bolt; 5. Fixed buckle; 6. Baffle; 7. Fixed pulley; 8. Bolt; 9. U-shaped hole; Third bolt 8; First fixing bracket 10; Second fixing bracket 11. Specific embodiments

[0025] The embodiments of the present utility model will be described in detail below with reference to the accompanying drawings: These embodiments are implemented on the premise of the technical solution of the present utility model, and detailed implementation manners and specific operation processes are given, but the protection scope of the present utility model is not limited to the following embodiments.

[0026] As Figures 1-3 shown, a tuna longline hook protection device includes a first fixing bracket 10, a second fixing bracket 11, a fixed buckle 5, a baffle 6, a fixed pulley 7, bolts, bolt holes 3 and U-shaped holes 9. The bolts include a first bolt, a second bolt 4, and a third bolt 8. Corresponding screw holes are respectively provided on the first fixing bracket 10 and the second fixing bracket 11. The second bolt 4 passes through the screw holes on the first fixing bracket 10 and the second fixing bracket 11. The top of the baffle 6 is connected to the second bolt 4. During operation, the baffle 6 is vertically downward and perpendicular to the cross-section of the fixed pulley 7. The fixed pulley 7 is fixed between the first fixing bracket 10 and the second fixing bracket 11 by the third bolt 8. A bolt hole 3 is provided in the upper part of the second fixing bracket 11. The first bolt passes through the bolt hole 3 to suspend the entire protection device in the air or fix it in the working position.

[0027] There are two fixed buckles 5, which are respectively located on the inner side surface of the second fixing bracket 11 and are used to fix the baffle 6 in the vertical position to ensure that the baffle 6 will not slide or move during operation. The baffle 6 is a square partition board, which is fixed between the first fixing bracket 10 and the second fixing bracket 11 by the second bolt 4. The baffle 6 can rotate freely on the second bolt 4, and the position of the baffle 6 can be adjusted flexibly to meet different operation requirements.

[0028] The fixed pulley 7 is installed at the central position of the entire protection device and is fixed by the third bolt 8. The fixed pulley 7 is used to guide and support the busbar 2 of the longline to ensure that the busbar 2 can run smoothly and avoid winding or friction. The U-shaped hole 9 is provided below the second bolt 4 at the upper part of the protection device. The U-shaped hole 9 is used to control the busbar 2 of the longline above the fixed pulley 7. After the busbar 2 passes through the U-shaped hole 9, it is guided by the fixed pulley 7 to ensure that the busbar 2 maintains the correct position and direction in the protection device. The first fixing bracket 10 and the second fixing bracket 11 are made of corrosion-resistant metal materials, and the outer layer of the baffle 6 is wrapped with shock-absorbing materials to prevent ejection after impact.

[0029] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will also have various changes and improvements, and these changes and improvements fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A tuna longline hook protection device, characterized in that: The invention comprises a first fixing bracket (10), a second fixing bracket (11), a fixing buckle (5), a baffle (6), a fixed pulley (7), bolts, bolt holes (3) and a U-shaped hole (9), wherein the bolts comprise a first bolt, a second bolt (4) and a third bolt (8), the first fixing bracket (10) and the second fixing bracket (11) are respectively provided with corresponding screw holes, the second bolt (4) passes through the screw holes on the first fixing bracket (10) and the second fixing bracket (11), the top of the baffle (6) is connected to the second bolt (4), when working, the baffle (6) is vertically downward and perpendicular to the cross section of the fixed pulley (7), the fixed pulley (7) is fixed between the first fixing bracket (10) and the second fixing bracket (11) by the third bolt (8), the upper part of the second fixing bracket (11) is provided with a bolt hole (3), the first bolt passes through the bolt hole (3) to suspend the entire protective device in the air or fix it in the working position.

2. A tuna longline hook protection device according to claim 1, characterized in that: Two fixing buckles (5) are provided, each located on the inner side surface of the second fixing bracket (11), and are used to fix the baffle (6) in a vertical position to ensure that the baffle (6) does not slide or move during operation.

3. The tuna longline hook protection device according to claim 1, characterized in that: The baffle (6) is a square partition, which is fixed between the first fixing bracket (10) and the second fixing bracket (11) by means of a second bolt (4). The baffle (6) can rotate freely on the second bolt (4), and the position of the baffle (6) can be adjusted to meet different operation requirements.

4. The tuna longline hook protection device according to claim 1, characterized in that: The fixed pulley (7) is installed at the center of the entire protection device and fixed by a third bolt (8). The fixed pulley (7) is used to guide and support the mother line (2) of the longline fishing, ensuring that the mother line (2) can run smoothly and avoid entanglement or friction.

5. The tuna longline hook protection device according to claim 1, characterized in that: A U-shaped hole (9) is provided below the second bolt (4) on the upper part of the protection device. The U-shaped hole (9) is used to control the mother line (2) of the longline fishing above the fixed pulley (7). After the mother line (2) passes through the U-shaped hole (9), it is guided by the fixed pulley (7) to ensure that the mother line (2) maintains a correct position and direction in the protection device.

6. The tuna longline hook protection device according to claim 1, characterized in that: The first fixing bracket (10) and the second fixing bracket (11) are made of corrosion-resistant metal materials, and the outer layer of the baffle (6) is wrapped with shock-absorbing material to prevent ejection after impact.

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