Underwater fishing net winding and sinking device

By designing an underwater fishing net winding and sinking device with winding and closing mechanisms, the problem of insufficient winding capacity of fishing nets in the prior art is solved, and effective support and efficient recycling of large or heavy fishing nets are achieved.

CN119190288APending Publication Date: 2024-12-27CHINESE PEOPLES LIBERATION ARMY NAVAL SPECIALTY MEDICAL CENT
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Patent Information

Application Number
CN202411375073.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-09-30
Publication Date
2024-12-27

AI Technical Summary

Technical Problem

The existing underwater fishing net winding and sinking device does not have enough winding capacity when dealing with large or heavy fishing nets, which may cause the fishing net to fall off and affect salvage efficiency.

Method used

An underwater fishing net winding and sinking device including a hull, a hull, a tangle mechanism and a closure mechanism is designed. The winding net is driven by a motor to rotate the winding wheel, and the winding member is used to realize the winding member by using a transmission assembly, a spring and a motor. The sinking and rising of the fishing net ensures the support and collection of the fishing net.

Benefits of technology

It effectively avoids the fall off of the fishing net, improves the entanglement and retraction efficiency of the fishing net, and ensures the complete recycling of the fishing net.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of underwater garbage salvage, in particular to an underwater fishing net winding and sinking device. According to the underwater fishing net winding and sinking device, when the underwater fishing net is fished, the fishing net can be supported, and the fishing net is prevented from falling off. An underwater fishing net winding and sinking device comprises a ship body, a ship frame, a winding mechanism and the like, the ship frame is connected to the upper side of the ship body, and the winding mechanism capable of winding an underwater fishing net is arranged on the ship body. After an ejector rod makes contact with the water bottom, a sliding rod moves downwards on the ejector rod, at the moment, the ejector rod extrudes an overturning plate to overturn upwards, then the ejector rod is matched with an ejector ball in a clamped mode, the ejector rod is fixed, the overturning plate keeps overturning upwards, and when a winding piece moves upwards, the overturning plate is opened to be located below the winding piece, and the purpose that when the underwater fishing net is fished, the fishing net can be fished conveniently is achieved. The fishing net can be supported, and the fishing net is prevented from falling off.
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Description

Technical Field

[0001] The invention relates to the technical field of underwater garbage salvaging, and in particular to an underwater fishing net winding and sinking device. Background Art

[0002] The underwater fishing net entanglement sinking device is a device specially designed for handling underwater fishing nets (especially abandoned or lost fishing nets), aiming to prevent these fishing nets from continuing to float or move with the water flow, thereby reducing the impact on the marine ecological environment. The existing underwater fishing net entanglement sinking device is to sink the winding piece underwater, make the winding piece contact with the underwater fishing net, and then rotate the winding piece to entangle the fishing net. The fishing net is salvaged by taking out the winding piece, thereby completing the recovery and cleaning of the fishing net. However, due to the limited winding capacity of the winding piece, when the fishing net is too large or heavy, it cannot be completely wrapped around the winding piece, and the fishing net may fall off, affecting the efficiency of fishing net salvage.

[0003] Therefore, an underwater fishing net entanglement sinking device has been developed to support the fishing net when the underwater fishing net is salvaged to prevent the fishing net from falling off. Summary of the invention

[0004] In order to overcome the disadvantages of existing underwater fishing net entanglement and bottom sinking devices, the winding capacity of the winding member is limited. When the fishing net is too large or heavy, it cannot be completely wound around the winding member, which may cause the fishing net to fall off, affecting the fishing net salvaging efficiency. The present invention provides an underwater fishing net entanglement and bottom sinking device that can support the fishing net when salvaging the underwater fishing net to prevent the fishing net from falling off.

[0005] The technical solution is: an underwater fishing net winding and sinking device, including a hull, a frame, a winding mechanism and a gathering mechanism. The frame is connected to the upper side of the hull, the hull is provided with a winding mechanism capable of winding the underwater fishing net, and the winding mechanism is provided with a gathering mechanism capable of gathering the underwater fishing net.

[0006] Furthermore, the winding mechanism includes a motor, a support frame, a winding wheel, a pull rope, a connecting plate, a rotating plate, a winding piece, a guide rod, a transmission assembly and a motor. The support frame is connected to the lower side of the right part of the hull, and the motor is connected to the front side of the support frame. The support frame is rotatably connected to the winding wheel, and the motor output shaft is connected to the winding wheel. The pulling rope is wound around the winding wheel, and the connecting plate is connected to the lower side of the pulling rope. The rotating plate is rotatably connected to the lower side of the connecting plate, and the winding piece is clamped on the lower side of the rotating plate. A plurality of guide rods are connected to the outer side of the upper part of the winding piece, and the guide rods are all slidably connected to the rotating plate. The motor is connected to the outer side of the connecting plate, and a transmission assembly is arranged between the motor output shaft and the rotating plate. Starting the motor rotates the winding wheel, releasing the pull rope, causing the connecting plate to move downward, and the winding piece moves downward and sinks into the water to contact the fishing net. Then starting the motor rotates the rotating plate through the transmission assembly, driving the winding piece to rotate, so that the winding piece winds the fishing net.

[0007] Furthermore, the wrapping piece is provided with a barb.

[0008] Furthermore, the transmission assembly includes a gear and a gear ring. The lower side of the motor output shaft is connected to the gear, and the outer side of the upper part of the rotating plate is connected to the gear ring. The gear ring is meshed with the gear.

[0009] Furthermore, the folding mechanism includes a sliding rod, a first pressure spring, a push rod, a second pressure spring, a flip plate, a torsion spring and a top ball. The middle part of the winding member is slidably connected with the sliding rod, the first pressure spring is connected between the sliding rod and the winding member, the lower part of the sliding rod is slidably connected with the push rod, the second pressure spring is connected between the push rod and the sliding rod, a plurality of flip plates are rotatably connected to the bottom of the sliding rod, and a plurality of torsion springs are connected between the flip plates and the sliding rod. A plurality of top balls are connected to the inner side of the lower part of the sliding rod. When the winding member moves downward, the push rod passes through the fishing net. When the push rod contacts the bottom of the water, the sliding rod moves downward on the push rod, and the second pressure spring is squeezed and contracted. At this time, the push rod squeezes the flip plate to flip upward, and the torsion spring is deformed. Subsequently, the push rod is engaged with the top ball to fix the push rod, so that the flip plate remains flipped upward. After that, the motor controls the winding wheel to rotate to reel in the pull rope, so that the winding member moves upward, and the first pressure spring rebounds, so that the sliding rod is reset. At this time, the flip plate is opened and located below the winding member.

[0010] Furthermore, it also includes a lifting mechanism, which includes a fixing part, a first electric push rod and a locking plate. The upper side of the connecting plate is connected to the fixing part, and multiple first electric push rods are connected to the fixing part. A locking plate is connected between the telescopic ends of the first electric push rods. The pull rope passes through the locking plate, and the guide rods are slidably connected to the locking plate. When the winding part rotates, the guide rods move on the locking plate. When the winding part wraps around the fishing net, the first electric push rod on the fixing part is started to push the locking plate downward, so that the guide rods move up and down, and then drive the winding part to move up and down.

[0011] Furthermore, an auxiliary mechanism is included, which includes a support block, a second electric push rod and a limit frame. A plurality of support blocks are connected to the outer side of the rotating plate, each of the support blocks is connected to a second electric push rod, and each of the telescopic ends of the second electric push rod is connected to a limit frame. The second electric push rod on the support block is started to make the limit frames approach each other, so that the fishing net is gathered at the winding piece.

[0012] Furthermore, it also includes a dismantling mechanism, which includes a guide frame, a slider and a pull rod. A plurality of guide frames are connected to the upper part of the winding member, and sliders are slidably connected to the guide frames. Pull rods are connected to the upper sides of the sliders. After the winding member is separated from the water surface, the winding member is pulled onto the hull, and then the slider is pulled by the pull rod to move outward along the guide frame to push the fishing net away from the winding member.

[0013] Furthermore, the sliders are all arc-shaped.

[0014] Furthermore, a blocking mechanism is also included, which includes a support member and a blocking frame. A plurality of support members are connected to the outer side of the upper part of the winding member, and the support members are spaced apart from the guide rods. The blocking frames are connected between the outer sides of the support members. After the fishing net contacts the winding member, the winding member presses the fishing net downward, and when the outer part of the fishing net is gathered upward, the blocking frame blocks the fishing net.

[0015] Beneficial effects of the present invention: 1. When the top rod contacts the bottom of the water, the sliding rod moves downward on the top rod. At this time, the top rod squeezes the flip plate to flip upward. Then the top rod and the top bead are engaged to fix the top rod, so that the flip plate keeps flipping upward. When the winding member moves upward, the flip plate opens and is located under the winding member, thereby achieving the effect of supporting the fishing net when salvaging the underwater fishing net to prevent the fishing net from falling off.

[0016] 2. In the present invention, when the winding member rotates, the guide rod moves on the locking plate. When the winding member winds the fishing net, the first electric push rod on the fixed member is started to push the locking plate downward, so that the guide rod moves up and down, and then the winding member is driven to move up and down, so that the fishing net can be shaken when the fishing net is wound, thereby reducing the attachments on the fishing net.

[0017] 3. When the fishing net is spread over a wide area, the present invention starts the second electric push rod on the support block to move the limit frames closer to each other, so that the fishing net is gathered at the winding piece, thereby assisting in the gathering of the fishing net and improving the fishing net salvaging efficiency.

[0018] 4. After the winding member is separated from the water surface, the present invention pulls the winding member onto the hull, and then pulls the slider through the pull rod to move the slider outward along the guide frame to push the fishing net away from the winding member, thereby achieving the effect of being able to remove the fishing net from the winding member and improving the efficiency of fishing net salvage.

[0019] 5. In the present invention, after the fishing net contacts the winding member, the winding member presses the fishing net downward, and when the outer portion of the fishing net is gathered upward, the blocking frame blocks the fishing net, thereby preventing the fishing net from being entangled on the transmission component and affecting the rotation of the winding member. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0021] Figure 2 It is a partially enlarged three-dimensional structural schematic diagram of the present invention.

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of the first part of the folding mechanism of the present invention.

[0023] Figure 4It is a schematic diagram of the three-dimensional structure of the second part of the folding mechanism of the present invention.

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the first part of the folding mechanism of the present invention.

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of the second part of the folding mechanism of the present invention.

[0026] Figure 7 It is a schematic diagram of the three-dimensional structure of the lifting mechanism of the present invention.

[0027] Figure 8 It is a schematic diagram of the three-dimensional structure of the auxiliary mechanism of the present invention.

[0028] Fig. 9 It is a schematic diagram of the three-dimensional structure of the dismantling mechanism of the present invention.

[0029] Fig.10 It is a schematic diagram of the three-dimensional structure of the barrier mechanism of the present invention.

[0030] Figure numbers: 1_hull, 2_frame, 3_winding mechanism, 30_motor, 31_support frame, 32_winding wheel, 33_pull rope, 34_connecting plate, 35_rotating plate, 36_winding member, 361_guide rod, 37_transmission assembly, 38_motor, 4_folding mechanism, 41_sliding rod, 411_first pressure spring, 42_thrust rod, 421_second pressure spring, 43_flip plate, 44_torsion spring, 45_thrust ball, 5_lifting mechanism, 51_fixing member, 52_first electric push rod, 53_positioning plate, 6_auxiliary mechanism, 61_support block, 62_second electric push rod, 63_limiting frame, 7_removal mechanism, 71_guide frame, 72_slider, 73_pull rod, 8_blocking mechanism, 81_support member, 82_blocking frame. DETAILED DESCRIPTION

[0031] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0032] An underwater fishing net winding sinking device, such as Figure 1 and Figure 2 As shown, it includes a hull 1, a frame 2, a winding mechanism 3 and a furling mechanism 4. The frame 2 is connected to the upper side of the hull 1, the winding mechanism 3 is provided on the hull 1, and the furling mechanism 4 is provided on the winding mechanism 3.

[0033] like Figure 1 , Figure 3 and Figure 4As shown, the winding mechanism 3 includes a motor 30, a support frame 31, a winding wheel 32, a pull rope 33, a connecting plate 34, a rotating plate 35, a winding member 36, a guide rod 361, a transmission assembly 37 and a motor 38. The lower side of the right part of the hull 1 is connected to the support frame 31, the front side of the support frame 31 is connected to the motor 30, the support frame 31 is rotatably connected to the winding wheel 32, the output shaft of the motor 30 is connected to the winding wheel 32, the pulling rope 33 is wound around the winding wheel 32, the lower side of the pulling rope 33 is connected to the connecting plate 34, and the lower side of the connecting plate 34 is rotatably connected. A rotating plate 35 is connected, a winding piece 36 is clamped on the lower side of the rotating plate 35, and a barb is provided on the winding piece 36 to facilitate winding of the fishing net. Four guide rods 361 are connected to the outer side of the upper part of the winding piece 36, and the guide rods 361 are all slidably connected to the rotating plate 35. A motor 38 is connected to the outer side of the connecting plate 34, and a transmission assembly 37 is provided between the output shaft of the motor 38 and the rotating plate 35. The transmission assembly 37 includes a gear and a gear ring. A gear is connected to the lower side of the output shaft of the motor 38, and a gear ring is connected to the outer side of the upper part of the rotating plate 35, and the gear ring is meshed with the gear.

[0034] like Figure 1 , Figure 5 and Figure 6 As shown, the folding mechanism 4 includes a sliding rod 41, a first pressure spring 411, a push rod 42, a second pressure spring 421, a flip plate 43, a torsion spring 44 and a top ball 45. The sliding rod 41 is slidably connected to the middle of the winding member 36, the first pressure spring 411 is connected between the sliding rod 41 and the winding member 36, the push rod 42 is slidably connected to the lower part of the sliding rod 41, the second pressure spring 421 is connected between the push rod 42 and the sliding rod 41, four flip plates 43 are rotatably connected to the bottom of the sliding rod 41, two torsion springs 44 are connected between the flip plates 43 and the sliding rod 41, and four top balls 45 are connected to the inner side of the lower part of the sliding rod 41.

[0035] When using the present invention, first control the hull 1 to travel to the fishing net salvage area. When the hull 1 travels to the specified position, start the motor 30 to rotate the winding wheel 32, release the pull rope 33, so that the connecting plate 34 moves downward, and the winding member 36 moves downward and sinks into the water to contact the fishing net. Then start the motor 38, and the gear ring in the transmission assembly 37 meshes with the gear to make the rotating plate 35 rotate, drive the winding member 36 to rotate, so that the winding member 36 winds the fishing net. When the winding member 36 moves downward, the top rod 42 passes through the fishing net. When the top rod 42 contacts the bottom of the water, the top rod 42 stops moving downward, and the sliding rod 41 moves downward on the top rod 42. The second pressure spring 421 is squeezed and contracted. At this time, the top rod 42 squeezes the flip plate 43 to flip upward, and the torsion spring 44 is deformed. Then the top rod 4 2 is engaged with the top ball 45 to fix the top rod 42, so that the flip plate 43 keeps flipping upward. When the winding member 36 needs to continue to move downward, the winding member 36 moves downward relative to the sliding rod 41, and the first pressure spring 411 is squeezed and contracted. Then, the motor 30 controls the winding wheel 32 to rotate and reel the pull rope 33 to move the winding member 36 upward. The first pressure spring 411 rebounds to reset the sliding rod 41. At this time, the flip plate 43 is opened and located below the winding member 36, so that the fishing net can be supported when the underwater fishing net is salvaged to prevent the fishing net from falling off. When the fishing net is pulled up, the top ball 45 can be separated from the top rod 42, and then the second pressure spring 421 rebounds to reset the top rod 42, and the torsion spring 44 recovers to rotate and reset the flip plate 43.

[0036] like Figure 1 and Figure 7 As shown, it also includes a lifting mechanism 5, which includes a fixing member 51, a first electric push rod 52 and a locking plate 53. The fixing member 51 is connected to the upper side of the connecting plate 34, and two first electric push rods 52 are connected to the fixing member 51. The locking plate 53 is connected between the telescopic ends of the first electric push rods 52, the pull rope 33 passes through the locking plate 53, and the guide rods 361 are all slidably connected to the locking plate 53.

[0037] By using the lifting mechanism 5 of the device, the winding member 36 can be moved up and down. When the winding member 36 rotates, the guide rod 361 moves on the locking plate 53. When the winding member 36 is wound around the fishing net, the first electric push rod 52 on the fixing member 51 is started to push the locking plate 53 downward, so that the guide rod 361 moves up and down, and then drives the winding member 36 to move up and down, thereby achieving the effect of shaking the fishing net when winding the fishing net and reducing the attachments on the fishing net.

[0038] like Figure 1 and Figure 8As shown, an auxiliary mechanism 6 is also included, which includes a support block 61, a second electric push rod 62 and a limit frame 63. Four support blocks 61 are connected to the outside of the rotating plate 35, and the support blocks 61 are each connected to a second electric push rod 62. The telescopic ends of the second electric push rod 62 are each connected to a limit frame 63.

[0039] The auxiliary mechanism 6 of the device can assist in the collection of fishing nets. When the fishing nets are spread over a wide area, the second electric push rod 62 on the support block 61 is started to move the limit frames 63 closer to each other, so that the fishing nets are collected at the winding member 36, thereby assisting in the collection of fishing nets and improving the efficiency of fishing net salvage.

[0040] like Figure 1 and Fig. 9 As shown, a dismantling mechanism 7 is also included, and the dismantling mechanism 7 includes a guide frame 71, a slider 72 and a pull rod 73. Two guide frames 71 are connected to the upper part of the winding member 36, and sliders 72 are slidably connected to the guide frames 71. The sliders 72 are all arc-shaped, which is convenient for fitting with the winding member 36. Pull rods 73 are connected to the upper sides of the sliders 72.

[0041] By using the removal mechanism 7 of the device, the fishing net can be removed from the winding member 36. After the winding member 36 is out of the water, the winding member 36 is pulled onto the hull 1, and then the slider 72 is pulled by the pull rod 73 to move the slider 72 outward along the guide frame 71 to push the fishing net out of the winding member 36, thereby achieving the effect of being able to remove the fishing net from the winding member 36 and improving the fishing net salvage efficiency.

[0042] like Figure 1 and Fig.10 As shown, a blocking mechanism 8 is also included, and the blocking mechanism 8 includes a support member 81 and a blocking frame 82. Four support members 81 are connected to the outer side of the upper part of the winding member 36. The support members 81 are spaced apart from the guide rod 361, and the blocking frames 82 are connected between the outer sides of the support members 81.

[0043] The blocking mechanism 8 of the device can be used to block the fishing net. After the fishing net contacts the winding member 36, the winding member 36 presses the fishing net downward. When the outer portion of the fishing net is gathered upward, the blocking frame 82 blocks the fishing net, thereby preventing the fishing net from being entangled on the transmission assembly 37 and affecting the rotation of the winding member 36.

[0044] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An underwater fishing net winding and sinking device, characterized in that: The invention comprises a hull (1), a boat frame (2), a winding mechanism (3) and a furling mechanism (4); the upper side of the hull (1) is connected to the boat frame (2); the hull (1) is provided with a winding mechanism (3) capable of winding an underwater fishing net; and the winding mechanism (3) is provided with a furling mechanism (4) capable of furling the underwater fishing net.

2. The underwater fishing net winding and sinking device according to claim 1, characterized in that: The winding mechanism (3) comprises a motor (30), a support frame (31), a winding wheel (32), a pull rope (33), a connecting plate (34), a rotating plate (35), a winding member (36), a guide rod (361), a transmission assembly (37) and a motor (38). The lower side of the right part of the hull (1) is connected to the support frame (31), the front side of the support frame (31) is connected to the motor (30), the upper side of the support frame (31) is rotatably connected to the winding wheel (32), the output shaft of the motor (30) is connected to the winding wheel (32), the pull rope (33) is wound around the winding wheel (32), the lower side of the pull rope (33) is connected to the connecting plate (34), the lower side of the connecting plate (34) is rotatably connected to the rotating plate (35), and the rotating plate (35) is rotatably connected to the rotating plate (35). ) is clamped on the lower side thereof, a winding member (36) is connected to the outer side of the upper portion of the winding member (36) with a plurality of guide rods (361), and the guide rods (361) are all slidably connected to the rotating plate (35). A motor (38) is connected to the outer side of the connecting plate (34), and a transmission assembly (37) is provided between the output shaft of the motor (38) and the rotating plate (35). The motor (30) is started to rotate the winding wheel (32), and the pull rope (33) is released, so that the connecting plate (34) moves downward, and the winding member (36) moves downward and sinks into the water to contact the fishing net. The motor (38) is then started, and the rotating plate (35) is rotated through the transmission assembly (37), which drives the winding member (36) to rotate, so that the winding member (36) winds the fishing net.

3. The underwater fishing net winding and sinking device according to claim 2, characterized in that: The winding member (36) is provided with a barb.

4. The underwater fishing net winding and sinking device according to claim 2, characterized in that: The transmission assembly (37) comprises a gear and a gear ring. The lower side of the output shaft of the motor (38) is connected to the gear. The upper outer side of the rotating plate (35) is connected to the gear ring. The gear ring is meshed with the gear.

5. The underwater fishing net winding and sinking device according to claim 2, characterized in that: The folding mechanism (4) comprises a sliding rod (41), a first pressure spring (411), a push rod (42), a second pressure spring (421), a flip plate (43), a torsion spring (44) and a top ball (45); the middle part of the winding member (36) is slidably connected to the sliding rod (41); the first pressure spring (411) is connected between the sliding rod (41) and the winding member (36); the lower part of the sliding rod (41) is slidably connected to the push rod (42); the second pressure spring (421) is connected between the push rod (42) and the sliding rod (41); the bottom of the sliding rod (41) is rotatably connected to a plurality of flip plates (43); a plurality of torsion springs (44) are connected between the flip plates (43) and the sliding rod (41); and a plurality of top balls (45) are connected to the inner side of the lower part of the sliding rod (41). 45), when the winding member (36) moves downward, the top rod (42) passes through the fishing net. When the top rod (42) contacts the bottom of the water, the sliding rod (41) moves downward on the top rod (42), and the second pressure spring (421) is squeezed and contracted. At this time, the top rod (42) squeezes the flip plate (43) to flip upward, and the torsion spring (44) is deformed. Then, the top rod (42) and the top ball (45) are engaged with each other to fix the top rod (42) so that the flip plate (43) remains flipped upward. Then, the motor (30) controls the winding wheel (32) to rotate and reel the pull rope (33), so that the winding member (36) moves upward. The first pressure spring (411) rebounds, so that the sliding rod (41) is reset. At this time, the flip plate (43) is opened and located below the winding member (36).

6. The underwater fishing net winding and sinking device according to claim 5, characterized in that: The device also comprises a lifting mechanism (5), the lifting mechanism (5) comprising a fixing member (51), a first electric push rod (52) and a locking plate (53). The fixing member (51) is connected to the upper side of the connecting plate (34), a plurality of first electric push rods (52) are connected to the fixing member (51), a locking plate (53) is connected between the telescopic ends of the first electric push rods (52), the pull rope (33) passes through the locking plate (53), the guide rods (361) are all slidably connected to the locking plate (53), when the winding member (36) rotates, the guide rods (361) move on the locking plate (53), when the winding member (36) is wound around the fishing net, the first electric push rods (52) on the fixing member (51) are started, the locking plate (53) is pushed to move downward, so that the guide rods (361) move up and down, and then the winding member (36) is driven to move up and down.

7. The underwater fishing net winding and sinking device according to claim 6, characterized in that: The invention also comprises an auxiliary mechanism (6), the auxiliary mechanism (6) comprising a support block (61), a second electric push rod (62) and a limit frame (63), a plurality of support blocks (61) are connected to the outside of the rotating plate (35), the support blocks (61) are all connected to the second electric push rod (62), and the telescopic ends of the second electric push rods (62) are all connected to the limit frame (63), and the second electric push rods (62) on the support blocks (61) are started to make the limit frames (63) approach each other, so that the fishing net is gathered at the winding member (36).

8. The underwater fishing net winding and sinking device according to claim 7, characterized in that: The device also includes a dismantling mechanism (7), which includes a guide frame (71), a slider (72) and a pull rod (73). The upper part of the winding member (36) is connected to a plurality of guide frames (71), the guide frames (71) are all slidably connected to the sliders (72), and the upper sides of the sliders (72) are all connected to the pull rods (73). After the winding member (36) is separated from the water surface, the winding member (36) is pulled onto the hull (1), and then the sliders (72) are pulled by the pull rods (73) so that the sliders (72) move outward along the guide frames (71), thereby pushing the fishing net to separate from the winding member (36).

9. The underwater fishing net winding and sinking device according to claim 8, characterized in that: The sliders (72) are all arc-shaped.

10. The underwater fishing net winding and sinking device according to claim 8, characterized in that: The invention also comprises a blocking mechanism (8), the blocking mechanism (8) comprising a support member (81) and a blocking frame (82), a plurality of support members (81) are connected to the outer side of the upper portion of the winding member (36), the support members (81) and the guide rod (361) are spaced apart, and the blocking frames (82) are connected between the outer sides of the support members (81), after the fishing net contacts the winding member (36), the winding member (36) presses the fishing net downward, and when the outer side of the fishing net is gathered upward, the blocking frame (82) blocks the fishing net.