A remote-controlled trawler

Abstract

The present invention discloses a remote-controlled trawler, which relates to the technical field of remote-controlled fishing boats. The trawler comprises a hull, a trawl, a reel, a signal receiver, a rotating plate, a connecting frame, a spring, a top frame and a cylinder, etc. The hull is fixedly connected with a reel, the reel is wound with a trawl, the hull is fixedly connected with a signal receiver and a connecting frame, the connecting frame is rotatably connected with a pair of rotating plates, a longitudinally distributed spring is fixedly connected between the rotating plate and the connecting frame, the connecting frame is fixedly connected with a longitudinally distributed cylinder, the telescopic end of the cylinder is fixedly connected with a top frame, and the top frame is extruded and matched with the rotating plate. The present invention can rotate and unfold the corresponding rotating plate when the trawler turns by using components such as the rotating plate and the top frame, thereby providing resistance to the lateral tilt of the hull, thereby preventing the trawler from lateral tilting or even capsizing, and improving the stability and anti-capsulation effect of the remote-controlled trawler.

Description

Technical Field

[0001] The invention relates to the technical field of remote-controlled fishing boats, and in particular to a long-distance remote-controlled trawler. Background Art

[0002] Remote control trawlers, also known as unmanned remote control trawlers or autonomous unmanned trawlers, are a new type of fishing vessel in the process of fishery modernization. By integrating advanced remote control technology and automatic driving systems, these fishing vessels can perform deep-sea fishing missions with no or very few people directly on board.

[0003] In the patent with publication number CN216636774U, an anti-capsize remote-controlled fishing boat is disclosed, which relates to the technical field of remote-controlled boats for pulling nets and making nests. The hull and the floating body are designed independently of each other, and can be quickly assembled using fixed tape. The travel drive device, control circuit and detachable battery compartment are fixed on the hull, so that the battery can be quickly replaced and the center of gravity of the hull is kept at the bottom, which cleverly solves the problem that ordinary remote-controlled fishing boats are easy to capsize. In addition, the control circuit is connected to the flexible circuit board through a flexible rubber waterproof cable, and the flexible circuit board is fixed on the top of the floating body. The flexible circuit board is fixed with a night fishing indicator light, an antenna and an electromagnetic unhooking device, which can further expand the function of the remote-controlled fishing boat. The entire remote-controlled fishing boat has a reasonable design, simple structure, low cost, convenient operation, good stability, and is easy to assemble and repair. However, this remote-controlled fishing boat only achieves a certain anti-capsize effect by lowering the center of gravity of the hull. The remote-controlled fishing boat will drag a fishing net and catch behind it, which will not only change the overall center of gravity of the fishing boat, but also cause resistance when the fishing boat is moving, making it easy for the fishing boat to tilt forward and capsize sideways when accelerating and turning, resulting in poor stability and anti-capsize effect of the fishing boat. Summary of the invention

[0004] In order to overcome the shortcomings of existing remote-controlled fishing boats that only achieve a certain anti-capsize effect by lowering the center of gravity of the hull, while the remote-controlled fishing boats always have fishing nets and catches towed behind them, which not only changes the overall center of gravity of the fishing boat, but also causes resistance when the fishing boat is moving, making it easy for the fishing boat to tilt forward and capsize sideways when accelerating and turning, resulting in poor stability and anti-capsize effect of the fishing boat, the present invention provides a long-distance remote-controlled trawler with good stability.

[0005] A long-distance remote-controlled trawler includes a hull, a trawl, a reel, a signal receiver, a rotating plate, a connecting frame, a spring, a top frame and a cylinder. The hull is fixedly connected to the reel, and the trawl is wound around the reel. The hull is fixedly connected to the signal receiver, and the signal receiver is electrically connected to the reel. The hull is fixedly connected to the connecting frame, and the connecting frame is rotatably connected to a pair of rotating plates. A longitudinally distributed spring is fixedly connected between the rotating plate and the connecting frame. The connecting frame is fixedly connected to a longitudinally distributed cylinder, and the cylinder is electrically connected to the signal receiver. The telescopic end of the cylinder is fixedly connected to the top frame, and the top frame is extruded and matched with the rotating plate. The water storage mechanism is also included. The water storage mechanism is arranged on the hull, and the water storage mechanism includes a mounting shell, a filter screen, a mounting plate and a rotating block. The paired mounting shells are all fixedly connected to the hull, the mounting shells are fixedly connected to a pair of filter screens, the mounting shells are fixedly connected to the mounting plate, and the mounting plate is rotatably connected to rotating blocks equidistantly distributed around the circumference.

[0006] Optionally, the directions of adjacent top frames are opposite to each other, so as to respectively control the rotation of two rotating plates.

[0007] Optionally, the installation shell is provided with a small water leakage hole for draining water in the installation shell.

[0008] Optionally, the filter is conical in shape to reduce water flow resistance.

[0009] Optionally, a stabilizing mechanism is also included, which is arranged on the connecting frame. The stabilizing mechanism includes a stabilizing plate, a connecting plate, a mounting frame and a torsion spring. The paired mounting frames are fixed to the connecting frames, the mounting frames are rotatably connected to the connecting plates, a torsion spring is fixed between the mounting frames and the connecting plates, and the stabilizing plates are rotatably connected between the paired connecting plates.

[0010] Optionally, the shape of the stabilizing plate is streamlined to reduce water flow resistance.

[0011] Optionally, a water spray mechanism is also included, which is arranged on the hull. The water spray mechanism includes a guide pipe, a collection frame, a spray plate, a water pump, a connecting pipe and a one-way valve. The pairs of guide pipes are fixedly connected to the hull, the connecting frame is fixedly connected to the pairs of collection frames, the hull is fixedly connected to the pairs of spray plates, and the nozzles of the spray plates are obliquely facing downward, one end of the guide pipe is fixedly connected to and connected with the collection frame, the other end of the guide pipe is fixedly connected to and connected with the spray plate, the guide pipe is fixedly connected to the water pump, the water pump is electrically connected to the signal receiver, the guide pipe is fixedly connected to and connected with a connecting pipe, the connecting pipe bypasses the water pump, and the connecting pipe is fixedly connected with the one-way valve.

[0012] Optionally, the receiving frame is in the shape of a conical funnel for gathering water flow.

[0013] Optionally, a counterweight mechanism is also included, which is arranged on the hull. The counterweight mechanism includes a counterweight block, a support frame and a screw. The support frame is fixed to the hull, the support frame is slidably connected to the counterweight block, the support frame is rotatably connected to the screw, and the screw is threadedly connected to the counterweight block.

[0014] Beneficial effects:

[0015] 1. The present invention uses components such as a turn plate and a top frame to rotate and unfold the corresponding turn plate when the trawler turns, thereby providing resistance to the lateral tilt of the hull, thereby preventing the trawler from tilting laterally or even capsizing, thereby improving the stability and anti-capsulation effect of the long-distance remote-controlled trawler.

[0016] 2. The present invention can increase the counterweight on both sides of the hull with the help of water flow without causing greater resistance to the navigation of the hull by installing components such as the outer shell and the filter screen. This can not only lower the center of gravity of the hull, but also keep the hull as horizontal as possible, thereby improving the stability and anti-capsize effect of the long-distance remote-controlled trawler.

[0017] 3. The present invention can limit the front end tilting of the hull and provide resistance through components such as stabilizing plates and torsion springs, thereby preventing the front end of the trawler from tilting too high or even capsizing, thereby improving the stability and anti-capsulation effect of the long-distance remote-controlled trawler.

[0018] 4. The present invention can not only provide a certain power for the forward movement of the hull, but also provide an upward force to the rear end of the hull, thereby hindering the front end of the hull from tilting up too high, thereby preventing the front end of the trawler from tilting too high or even capsizing, thereby improving the stability and anti-capsulation effect of the long-distance remote-controlled trawler.

[0019] 5. The present invention uses components such as counterweights and screws to adjust the position of the counterweights according to the size of the trawl and the amount of fish that can be caught, so that the center of gravity of the trawler can be moved to the middle of the hull when loading, thereby improving the stability of the trawler and preventing the front end of the hull from tilting or even capsizing. 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 three-dimensional structural schematic diagram of the hull, trawl net, reel and other components of the present invention.

[0022] Figure 3 It is a three-dimensional structural schematic diagram of the rotating plate, connecting frame, spring and other components of the present invention.

[0023] Figure 4 It is a three-dimensional structural schematic diagram of the spring, top frame, cylinder and other components of the present invention.

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the connecting frame, top frame and cylinder of the present invention.

[0025] Figure 6 The present invention is a three-dimensional structural schematic diagram of the installation of the shell, the filter screen and the hull.

[0026] Figure 7 The figure is a three-dimensional structural diagram of the components including the housing, the filter screen and the mounting plate of the present invention.

[0027] Figure 8 It is a schematic diagram of the three-dimensional structure of the mounting plate and the rotating block of the present invention.

[0028] Fig. 9 It is a three-dimensional structural schematic diagram of components such as a stabilizing plate, a connecting plate and a connecting frame of the present invention.

[0029] Fig.10 It is a schematic diagram of the three-dimensional structure of the stabilizing plate, connecting plate, mounting frame and other components of the present invention.

[0030] Fig.11 It is a three-dimensional structural schematic diagram of the guide tube, the storage frame, the connecting frame and other components of the present invention.

[0031] Fig.12 It is a three-dimensional structural schematic diagram of the guide pipe, storage frame, water pump and other components of the present invention.

[0032] Fig.13 It is a schematic diagram of the three-dimensional structure of the guide pipe, water pump, connecting pipe and other components of the present invention.

[0033] Fig.14 It is a three-dimensional structural schematic diagram of components such as a counterweight block, a support frame and a lead screw of the present invention.

[0034] The meanings of the reference numerals in the figure are as follows: 1. hull; 11. trawl; 12. reel; 13. signal receiver; 14. turn plate; 15. connecting frame; 16. spring; 17. top frame; 18. cylinder; 2. mounting shell; 21. filter screen; 22. mounting plate; 23. turn block; 3. stabilizing plate; 31. connecting plate; 32. mounting frame; 33. torsion spring; 4. guide pipe; 41. collection frame; 42. spray plate; 43. water pump; 44. connecting pipe; 45. one-way valve; 5. counterweight; 51. support frame; 52. screw. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] like Figure 1-Figure 5As shown, a long-distance remote-controlled trawler includes a hull 1, a trawl 11, a reel 12, a signal receiver 13, a rotating plate 14, a connecting frame 15, a spring 16, a top frame 17 and a cylinder 18. The reel 12 is fixedly connected to the rear side of the hull 1, and the trawl 11 is wound around the lower rear side of the reel 12. The signal receiver 13 is fixedly connected to the top of the hull 1, and the signal receiver 13 is electrically connected to the reel 12. The connecting frame 15 is fixedly connected to the bottom of the hull 1, and the rotating plates 14 are rotatably connected to the left and right sides of the bottom of the connecting frame 15. Three springs 16 distributed longitudinally front and back are fixedly connected between the rotating plate 14 and the connecting frame 15. Four cylinders 18 distributed longitudinally front and back are fixedly connected inside the connecting frame 15, and the cylinders 18 are electrically connected to the signal receiver 13. The telescopic end of the cylinder 18 is fixedly connected to the top frame 17, and the top frame 17 is squeezed and fitted with the adjacent rotating plate 14.

[0037] like Figure 5 As shown, the directions of adjacent top frames 17 are opposite to each other, so as to control the rotation of two rotating plates 14 respectively.

[0038] When fishermen need to use a trawler to catch fish, they can first put the hull 1 into the water with the help of external lifting equipment, and then control the hull 1 to sail in the water through the remote control and the signal receiver 13. During this period, the trawl 11 can be loosened by the reel 12, so that the trawl 11 is unfolded in the water and catches fish. When the trawl is used to catch fish, the hull 1 will continue to sail forward. As the catch in the trawl 11 increases, the resistance brought by the trawl 11 and the catch to the hull 1 will also continue to increase. When the hull 1 turns left, The left side of the hull 1 will be closer to the trawl 11, and the trawl 11 and the catch will provide a backward resistance to the hull 1. Therefore, when turning left, the hull 1 is easy to tilt to the left or even overturn under the resistance of the trawl 11 and the catch. At this time, the first and third cylinders 18 from the front to the back on the connecting frame 15 can be activated to move the corresponding two top frames 17 downward and squeeze the right rotating plate 14, so that the right rotating plate 14 rotates away from the connecting frame 15 until it rotates to a horizontal state, and the spring 16 is stretched immediately. When the hull 1 tilts to the left, the right turn plate 14 needs to rotate counterclockwise to drain the water above. At this time, the water will hinder the rotation of the turn plate 14 and the left tilt of the hull 1, so that the turn plate 14 can provide resistance to the lateral tilt of the hull 1, thereby preventing the hull 1 from tilting to the right or even capsizing. Similarly, when the hull 1 turns to the right, the second and fourth cylinders 18 from the front to the back on the connecting frame 15 can be activated, so that the corresponding two top frames 17 move downward and squeeze the left turn plate 14 to restore When sailing in a straight line, the corresponding top frame 17 can be driven by the cylinder 18 to move upward and reset. At this time, the turn plate 14 will also rotate in the opposite direction and reset under the action of the spring 16, so as to avoid the turn plate 14 causing greater resistance to the navigation of the hull 1. After the fishing is completed, the trawl net 11 and the caught fish are first reeled in and lifted by the reel 12, and then the hull 1 is controlled to return by the remote control and signal receiver 13. After returning, the fishermen can first transport the hull 1 back to the shore through external lifting equipment, and then get the fish in the trawl net 11 out.

[0039] It also includes a water storage mechanism, which is arranged on the hull 1. The water storage mechanism includes a mounting shell 2, a filter screen 21, a mounting plate 22 and a rotating block 23. The four mounting shells 2 are respectively fixed to the front and rear parts of the left and right sides of the hull 1. The filter screen 21 is fixed to the front and rear sides of the upper part of the mounting shell 2. The mounting plate 22 is fixed inside the mounting shell 2. The middle part of the mounting plate 22 is rotatably connected to the rotating blocks 23 distributed equidistantly around the circumference.

[0040] like Figure 6 As shown, a small water leakage hole is opened at the lower part of the installation shell 2 to drain the water in the installation shell 2.

[0041] like Figure 7 As shown, the filter screen 21 is conical in shape to reduce water flow resistance.

[0042] When the hull 1 sails forward, water flow and waves will continuously enter the installation shells 2 on the left and right sides through the filter screen 21 on the front side of the installation shell 2. After entering the installation shell 2, part of the water flow will be discharged from the filter screen 21 on the rear side, while the other part of the water flow will be stored in the installation shell 2, so that the counterweight on both sides of the hull 1 can be increased with the help of water flow without causing greater resistance to the navigation of the hull 1, thereby lowering the center of gravity of the hull 1 and making the hull 1 more stable. When the hull 1 tilts to the left, the installation shell 2 on the right side and the water flow inside it will rotate upward with the hull 1 and leave the water surface. At this time, the installation shell 2 on the right side and the water flow inside it will help the hull 1 to restore to a horizontal state under the action of gravity. A small leakage hole is opened at the lower part, so after the installation shell 2 on the right side leaves the water surface, the water flow inside it will flow downward under the action of gravity, and finally be slowly discharged from the small leakage hole, and the water flow in the installation shell 2 will flow downward through the installation plate 22 and drive the rotating block 23 to rotate, thereby reducing the flow rate and discharge speed of the water flow, thereby avoiding the rapid loss of water flow inside the right side installation shell 2 and affecting the restoration of balance of the hull 1. The same is true when the hull 1 tilts to the right. When the fishermen lift the returning hull 1 and other components through external lifting equipment, the water in the installation shell 2 will gradually be discharged from the small leakage hole, thereby reducing the counterweight of the hull 1, making it easier for fishermen to lift and transport the hull 1 and other components.

[0043] like Fig. 9 and Fig.10 As shown, a stabilizing mechanism is also included, which is arranged on the connecting frame 15. The stabilizing mechanism includes a stabilizing plate 3, a connecting plate 31, a mounting frame 32 and a torsion spring 33. The two mounting frames 32 are both fixed to the upper front part of the connecting frame 15. The front side of the mounting frame 32 is rotatably connected to the connecting plate 31. The torsion spring 33 is fixed between the mounting frame 32 and the connecting plate 31. The stabilizing plate 3 is rotatably connected between the front sides of the upper and lower connecting plates 31.

[0044] like Fig. 9 and Fig.10 As shown, the shape of the stabilizing plate 3 is a streamlined design to reduce water flow resistance.

[0045] When the hull 1 sails forward quickly, the front part of the hull 1 will tilt upward due to inertia and the resistance of the trawl 11 and the catch. Since the stabilizing plate 3 is of symmetrical streamlined design, the stabilizing plate 3 will not cause greater resistance to the navigation of the hull 1, but will also always remain in a horizontal state under the action of the water flow. Therefore, when the front part of the hull 1 rotates upward and tilts up, the stabilizing plate 3 will not rotate, while the rear end of the connecting plate 31 will rotate upward, and the torsion spring 33 will immediately deform. The force generated by the deformation of the torsion spring 33 will assist the hull 1 to restore its balance. In this way, the torsion spring 33 and the stabilizing plate 3 can be used to limit the tilting of the front end of the hull 1 and provide resistance, thereby preventing the front end of the trawler from tilting too high or even capsizing. In addition, the streamlined stabilizing plate 3 can also break the water flow during navigation, thereby reducing the resistance of the rotating plate 14, the connecting frame 15 and other components to the navigation of the hull 1.

[0046] like Figure 11-13 As shown, a water spray mechanism is also included, which is arranged on the hull 1. The water spray mechanism includes a guide pipe 4, a collection frame 41, a spray plate 42, a water pump 43, a connecting pipe 44 and a one-way valve 45. The two guide pipes 4 are respectively fixed to the left and right sides of the hull 1, the left and right sides of the connecting frame 15 are fixed with the guide frame 41, the left and right parts of the rear side of the hull 1 are fixed with the spray plate 42, and the nozzle of the spray plate 42 is inclined downward. One end of the guide pipe 4 is fixedly connected to and communicated with the adjacent collection frame 41, and the other end of the guide pipe 4 is fixedly connected to and communicated with the adjacent spray plate 42. A water pump 43 is fixedly connected to the middle of the guide pipe 4, and the water pump 43 is electrically connected to the signal receiver 13. A connecting pipe 44 is fixedly connected to and communicated with the middle of the guide pipe 4, and the connecting pipe 44 bypasses the water pump 43. A one-way valve 45 is fixedly connected to the middle of the connecting pipe 44.

[0047] like Fig.11 and Fig.12 As shown, the receiving frame 41 is in the shape of a conical funnel for gathering water flow.

[0048] When the hull 1 sails forward, the water will continuously enter the guide pipe 4 through the receiving frame 41, then bypass the water pump 43 through the connecting pipe 44, and finally be ejected from the spray plate 42. At this time, the water pump 43 can be started, so that part of the water entering the guide pipe 4 will be accelerated by the water pump 43 and ejected from the spray plate 42 more quickly. Since the nozzle of the spray plate 42 is tilted downward, the water sprayed from the spray plate 42 can provide a certain power for the forward movement of the hull 1, and can also provide an upward force to the rear end of the hull 1, thereby preventing the front end of the hull 1 from tilting up. , so as to prevent the front end of the trawler from tilting too high or even capsizing. The presence of the one-way valve 45 can prevent the water in the connecting pipe 44 from flowing back. As the speed of the hull 1 increases, the front side of the hull 1 will be more likely to tilt upward, but the speed of the water entering the receiving frame 41, the guide pipe 4 and the connecting pipe 44 will also increase accordingly. Therefore, the spray plate 42 can provide greater power for the hull 1 when spraying water, and also provide a greater upward force to the rear end of the hull 1, thereby effectively preventing the front end of the hull 1 from tilting too high or even capsizing.

[0049] like Figure 1 and Fig.14 As shown, it also includes a counterweight mechanism, which is arranged on the hull 1. The counterweight mechanism includes a counterweight block 5, a support frame 51 and a screw 52. The support frame 51 is fixed to the front side of the top of the hull 1. The top of the support frame 51 is slidably connected to the counterweight block 5. The upper part of the support frame 51 is rotatably connected to the screw 52. The screw 52 is threadedly connected to the counterweight block 5.

[0050] Before putting the hull 1 into the water, the fisherman can turn the screw 52 according to the size of the trawl 11 at the rear side of the hull 1 and the amount of fish that can be caught in the water area, thereby driving the counterweight 5 to move forward or backward, thereby adjusting the position of the counterweight 5 and changing the center of gravity of the hull 1, so that the center of gravity of the trawler can tend to the middle of the hull 1 when loading, thereby improving the stability of the hull 1 and preventing the front end of the hull 1 from tilting or even capsizing.

[0051] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A remote-controlled trawler, comprising a hull (1), a trawl (11), a reel (12) and a signal receiver (13), wherein the hull (1) is fixedly connected to the reel (12), the trawl (11) is wound around the reel (12), the hull (1) is fixedly connected to the signal receiver (13), and the signal receiver (13) is electrically connected to the reel (12), characterized in that: The device also comprises a rotating plate (14), a connecting frame (15), a spring (16), a top frame (17) and a cylinder (18). The bottom of the hull (1) is fixedly connected to the connecting frame (15). The connecting frame (15) is rotatably connected to a pair of rotating plates (14). A spring (16) distributed longitudinally is fixedly connected between the rotating plate (14) and the connecting frame (15). Four cylinders (18) distributed longitudinally in the front and rear directions are fixedly connected inside the connecting frame (15). The cylinders (18) are electrically connected to the signal receiver (13). The telescopic ends of the four cylinders (18) are respectively fixedly connected to the top frame (17). The top frame (17) and the rotating plate (14) are press-fitted. The device also comprises a water storage mechanism. The water storage mechanism is arranged on the hull (1). The water storage mechanism comprises a mounting shell (2), a filter screen (21), a mounting plate (22) and a rotating block (23). The filter screen (21) is conical. The pair of mounting shells (2) are both fixedly connected to the hull (1). The mounting shell (2) is fixedly connected to a pair of filter screens (21), the mounting shell (2) is fixedly connected to a mounting plate (22), the mounting plate (22) is rotatably connected to rotating blocks (23) equidistantly distributed around the circumference; wherein a small leaking hole is opened at the bottom of the mounting shell (2); and a stabilizing mechanism is also included, the stabilizing mechanism is arranged in front of the connecting frame (15), the stabilizing mechanism includes a stabilizing plate (3), a connecting plate (31), a mounting frame (32) and a torsion spring (33), the pair of mounting frames (32) are fixedly connected to the connecting frame (15), the mounting frames (32) are rotatably connected to the connecting plates (31), the torsion spring (33) is fixedly connected between the mounting frames (32) and the connecting plates (31), and the stabilizing plates (3) are rotatably connected between the pair of connecting plates (31); the stabilizing mechanism is used to assist the hull (1) to restore balance through the force generated by the deformation of the torsion spring (33) when the front end of the hull (1) is rotated and tilted upward.

2. A remote-controlled trawler according to claim 1, characterized in that: The adjacent top frames (17) are oriented in opposite directions.

3. A remote-controlled trawler according to claim 1, characterized in that: The shape of the stabilizing plate (3) is a streamlined design.

4. A remotely controlled trawler according to claim 3, characterized in that: The invention also comprises a water spraying mechanism, which is arranged on the hull (1). The water spraying mechanism comprises a guide pipe (4), a collection frame (41), a spray plate (42), a water pump (43), a connecting pipe (44) and a one-way valve (45). The paired guide pipes (4) are all fixedly connected to the hull (1). The connecting frame (15) is fixedly connected to the paired guide frames (41). The hull (1) is fixedly connected to the paired spray plates (42), and the spray ports of the spray plates (42) are obliquely facing downward. One end of the guide pipe (4) is fixedly connected to and communicates with the collection frame (41), and the other end of the guide pipe (4) is fixedly connected to and communicates with the spray plate (42). The guide pipe (4) is fixedly connected to a water pump (43), and the water pump (43) is electrically connected to a signal receiver (13). The guide pipe (4) is fixedly connected to and communicates with a connecting pipe (44), and the connecting pipe (44) bypasses the water pump (43). The connecting pipe (44) is fixedly connected to the one-way valve (45).

5. A remote-controlled trawler according to claim 4, characterized in that: The receiving frame (41) is in the shape of a conical funnel.

6. A remotely controlled trawler according to claim 5, characterized in that: The invention also comprises a counterweight mechanism, which is arranged on the hull (1), and comprises a counterweight block (5), a support frame (51) and a lead screw (52), wherein the support frame (51) is fixedly connected to the hull (1), the support frame (51) is slidably connected to the counterweight block (5), the support frame (51) is rotatably connected to the lead screw (52), and the lead screw (52) is threadedly connected to the counterweight block (5).

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