Marine transformer with limiting and fixing device

Abstract

The invention discloses a marine transformer with a limiting and fixing device, and relates to the technical field of marine transformation, the marine transformer comprises a transformer body and cooling fins, a bottom fixing box is fixedly arranged at the bottom of the transformer body, and a limiting and fixing assembly for fixing the transformer body on a ship body is arranged at the bottom of the bottom fixing box; the limiting and fixing assembly comprises a supporting suction cup, a folding base and a vertical column, and cooling fins are arranged on the side face of the transformer body shell at equal intervals. A bottom fixing box is arranged on the side face of the marine transformer, a closed frame is arranged on the side face of the bottom fixing box, a dust collecting hopper is arranged at the top of the closed frame, and a dust sweeping assembly is arranged on the side face of the closed frame; the pendulum driving assembly can automatically drive the dust sweeping assembly to continuously sweep over the side faces of the multiple cooling fins when the ship body shakes, the pendulum driving assembly does not need to occupy electric power resources, extra electric energy is not needed, energy consumption is reduced, and the ship power shortage scene is adapted.

Description

Technical Field

[0001] The present invention relates to the technical field of marine variable voltage, and particularly to a marine transformer with a limit fixing device. Background Art

[0002] Large marine transformers are high-capacity devices designed specifically for marine power systems, used for voltage conversion, power distribution, and isolation. They need to adapt to harsh environments such as salt spray, humidity, and vibration. Their heat dissipation methods vary depending on the type: oil-immersed transformers mainly dissipate heat through the circulation of internal insulating oil, and may be equipped with external heat dissipation pipes or fin structures to enhance heat dissipation efficiency; dry-type transformers rely on natural or forced air cooling, and often have heat dissipation fins designed on the outer shell to increase the surface area and accelerate heat dissipation. Due to the limited space on ships and the extremely high requirements for equipment reliability, heat dissipation fins are quite common in compact designs, especially widely used in dry-type transformers to ensure stable operation in high-temperature environments.

[0003] In the prior art, after long-term use, dust will accumulate in the gaps of the heat dissipation fins of large marine transformers. To avoid affecting the heat dissipation efficiency of the heat dissipation fins, cleaning is usually required. Some heat dissipation fins are cleaned manually, while others are provided with a cleaning structure based on electric drive, which will consume a large amount of electric power resources. Especially on transport ships, the additional power consumption increases the energy burden and occupies limited electric power resources. Moreover, when the cleaning structure is used to clean large marine transformers, it will disturb the dust, and the disturbed dust will scatter into the machine room where the marine transformer is located, resulting in a sudden increase in the concentration of airborne particulate matter in the closed environment, not only reducing the air quality but also possibly depositing on the surface of the equipment. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem that after long-term use, dust will accumulate in the gaps of the heat dissipation fins of large marine transformers in the prior art. To avoid affecting the heat dissipation efficiency of the heat dissipation fins, cleaning is usually required. Some heat dissipation fins are cleaned manually, while others are provided with a cleaning structure based on electric drive, which will consume a large amount of electric power resources. Especially on transport ships, the additional power consumption increases the energy burden and occupies limited electric power resources. Moreover, when the cleaning structure is used to clean large marine transformers, it will disturb the dust, and the disturbed dust will scatter into the machine room where the marine transformer is located, resulting in a sudden increase in the concentration of airborne particulate matter in the closed environment, not only reducing the air quality but also possibly depositing on the surface of the equipment, and to propose a marine transformer with a limit fixing device.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions: A marine transformer with a limited position fixing device comprises a transformer body and a heat dissipation fin. A bottom fixing box is fixedly arranged at the bottom of the transformer body. A limited position fixing component for fixing the transformer body on a ship body is arranged at the bottom of the bottom fixing box. The limited position fixing component comprises a supporting suction cup, a folding seat, and a vertical column. Heat dissipation fins are arranged at equal intervals on the side of the transformer body shell. A dust sweeping component for quickly cleaning dust accumulated between the heat dissipation fins is arranged between multiple groups of heat dissipation fins in the bottom fixing box. The dust sweeping assembly includes a common frame, a dust scraping brush, and a pendulum driving assembly that drives the dust sweeping assembly to move as the hull shakes, the pendulum driving assembly includes a driving gear rod, a locking gear, and a follower pendulum, a closed frame is fixedly provided on the front side of the bottom solid box, a dust hopper is provided on the top of the closed frame, and a closed assembly is provided on the side of the closed frame to prevent dust from splashing when the dust sweeping assembly is working, the closed assembly includes a closing plate, a driven gear, a common gear rod, and a follower assembly, and the follower assembly is linked to control the movement of the closed assembly when the pendulum driving assembly is actuated, an intermediate plate is fixedly provided in the middle position of the closed frame, and a switch assembly for controlling whether the hull exhaust system is connected to the dust hopper is provided on the intermediate plate.

[0006] Optionally, the four corners of the bottom of the bottom fixing box are fixedly provided with folding seats, the folding seats are movably inserted with vertical columns along the vertical direction, the vertical columns are threaded with adjustment nuts on the upper and lower surfaces of the folding seats, and the bottom of the vertical columns is fixedly provided with a supporting suction cup.

[0007] Optionally, the common frame is movably sleeved on the outer walls of multiple heat dissipation fins, and a docking block is fixedly provided at the bottom of the common frame, a driving gear rod is fixedly provided at the other end of the docking block, a locking gear is stably engaged at the bottom of the driving gear rod, a horizontal axis is fixedly provided at the center position of the side of the locking gear, the horizontal axis is rotatably connected to the side of the vertical seat, the vertical seat is fixedly provided at the bottom of the inner cavity of the bottom solid box, a swing arm is fixedly provided at the other end of the horizontal axis, and a follower pendulum is fixedly provided at the bottom of the swing arm.

[0008] Optionally, a closing plate is equidistantly rotatably connected to the side of the closing frame, a driven gear is fixedly provided at the bottom of the closing plate shaft, the driven gear is stably meshed with a common gear rod, a rectangular groove is provided on the bottom surface of the common gear rod, a rectangular column is movably inserted into the rectangular groove, the rectangular column is fixedly provided at the bottom of the bottom plate, the bottom plate is fixedly connected to the inside of the closing frame, a short vertical plate is fixedly provided on the front side of the bottom plate, and a guide frame is fixedly provided on the bottom of the outer wall of the rectangular column.

[0009] Optionally, the follower assembly includes a right-angle block, a driving block, and an extension column. An extension rod is fixedly provided at the bottom of the common rack, and an extension column is fixedly provided on the side of the extension rod. A right-angle block is fixedly provided on the side of the driving rack, and a driving block is fixedly provided at the bottom of the right-angle block. A vertical surface and an inclined surface are sequentially formed on the side of the driving block, and one end of the extension column abuts against the side of the vertical surface or the inclined surface.

[0010] Optionally, the width of the guiding frame is greater than the width of the rectangular groove. A guiding column is movably inserted into the side of the guiding frame, and the other end of the guiding column is fixedly connected to the side of the fixed block. The fixed block is fixedly provided at the bottom of the common rack. One end of the outer wall of the guiding column is fixedly connected to one end of the closing spring, and the other end of the closing spring is fixedly connected to the side of the guiding frame.

[0011] Optionally, the switch assembly includes a switching column and a follower gear. The middle plate is fixedly provided at the middle position on the side of the closing frame. The middle plate is rotatably connected to the switching column in the vertical direction. A follower gear is fixedly provided at the bottom of the switching column, and the follower gear is stably engaged with the common rack.

[0012] Optionally, a dust guiding pipe is fixedly communicated with the side of the dust collecting hopper. The top of the switching column is movably inserted into the interior of the dust guiding pipe, and the dust guiding pipe is horizontally arranged.

[0013] Optionally, a vertical rod is fixedly provided in the gap between adjacent heat dissipation fins of the common frame. Scraping brushes are fixedly provided at both ends of the vertical rod, and the two scraping brushes contact the sides of the heat dissipation fins.

[0014] Optionally, the dust collecting hopper has a structure that is narrow at the top and wide at the bottom. A switching hole is formed at the end of the switching column, and the diameter of the switching hole is the same as the inner diameter of the dust guiding pipe.

[0015] Compared with the prior art, the present invention has the following advantages: 1. A bottom fixing box is provided on the side of the marine transformer of the present invention, a closing frame is provided on the side of the bottom fixing box, a dust collecting hopper is provided on the top of the closing frame, a dust sweeping assembly is provided on the side of the closing frame, and a pendulum driving assembly is provided in the inner cavity of the bottom fixing box. The pendulum driving assembly can automatically drive the dust sweeping assembly to continuously pass by the sides of multiple heat dissipation fins when the hull shakes. The pendulum driving assembly does not need to consume electric power resources, does not require additional electric energy, reduces energy consumption, and is suitable for the scenario of tight ship power.

[0016] 2. The present invention is provided with a closing component on the side of the closing frame, one of the core components of the closing component is a follower component, when the pendulum driving component drives the dust sweeping component to start working, it will simultaneously drive the closing component to close the closing frame through the follower component, so that the cleaning work of the heat dissipation fins is carried out in a closed environment, and the closing frame is automatically closed by the pendulum driving linkage to form a dynamic closed space, which strictly limits the dust inside the cleaning area to avoid dust overflow and polluting the machine room environment; at the same time, the airflow disturbance range in the closed state is controllable, and the dust collecting hopper is used for directional collection to significantly improve the dust removal efficiency. Without manual intervention or additional energy consumption, the cleaning process and the closing action are intelligently coordinated, which not only ensures the stable recovery of the heat dissipation performance of the equipment, but also reduces the risk of cross-contamination to other sensitive equipment on the ship, greatly improving the environmental friendliness and operational safety of the cleaning system.

[0017] 3. The present invention has a dust guide pipe fixedly arranged horizontally on the side of the dust hopper, the dust guide pipe is connected with the exhaust system of the transport ship, and a switch assembly is arranged on the middle plate in the middle position of the closed frame, the switch assembly can be linked with the follower assembly, when the closed assembly closes the side of the closed frame, and the cleaning work of the heat dissipation fins is put into a closed state, the switch assembly automatically controls the exhaust system to be connected with the dust hopper, and the switch assembly is linked with the follower assembly, and the exhaust system is synchronously triggered to be connected with the dust hopper when the closed frame is closed, forming a "closed dust removal-directional suction" synergistic mechanism. The exhaust system relies on the existing equipment of the ship, and there is no need to add an independent power source. No manual intervention is required throughout the process, which significantly improves the system integration and environmental protection, and meets the low maintenance and high reliability operation and maintenance requirements of ship equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 for Figure 1 Another perspective structural diagram of .

[0020] Figure 3 for Figure 2 Schematic diagram of the structure with the short vertical board removed.

[0021] Figure 4 for Figure 3 Schematic diagram of the local enlarged structure at A.

[0022] Figure 5 for Figure 4 Schematic diagram of the structure with the closure assembly removed.

[0023] Figure 6 for Figure 5 Schematic diagram of the structure of removing the dust wiping component.

[0024] Figure 7 It is a schematic diagram of the structure of the dust wiping component.

[0025] Figure 8 It is a schematic structural diagram of a switch component.

[0026] Figure 9 It is a schematic structural diagram of a pendulum drive component.

[0027] Figure 10 is Figure 9 Another perspective structural diagram of

[0028] Figure 11 It is a schematic structural diagram of a common rack and its connecting piece.

[0029] Figure 12 It is a specific structural diagram of a closing plate.

[0030] In the figure: 1. Transformer body; 2. Heat dissipation fins; 3. Dust collecting hopper; 4. Dust guiding pipe; 5. Bottom fixing box; 6. Folding seat; 7. Vertical column; 71. Support suction cup; 8. Adjusting nut; 9. Bottom plate; 10. Short vertical plate; 11. Enclosing frame; 12. Closing plate; 13. Driven gear; 14. Fixed block; 141. Guide post; 15. Closing spring; 16. Guide frame; 17. Rectangular column; 18. Common frame; 181. Vertical rod; 1801. Dust scraping brush; 19. Common rack; 191. Rectangular groove; 20. Switching hole; 21. Switching column; 210. Follow-up gear; 22. Intermediate plate; 23. Driving rack; 24. Docking block; 25. Locking gear; 26. Vertical seat; 27. Horizontal shaft; 28. Swing arm; 29. Follow-up pendulum; 30. Right-angle block; 31. Driving block; 310. Vertical surface; 311. Inclined surface; 32. Extension rod; 321. Extension column. Specific embodiments

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0032] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0033] Refer to Figure 1-2, a marine transformer with a limit fixing device, including a transformer body 1 and heat dissipation fins 2. The detailed structure inside the transformer body 1 is an existing device in the prior art, so it is not disclosed in this application document. The structure of the heat dissipation fins 2 is a flat metal plate. Since the transformer is installed on a transport ship that sails on the sea all year round, in order to further improve the corrosion resistance of the heat dissipation fins 2, the heat dissipation fins 2 are coated with epoxy resin, polyurethane or fluorocarbon, which have high adhesion, salt spray resistance and self-cleaning characteristics. Additionally, the heat dissipation fins 2 can optionally be coated with a primer containing zinc or aluminum powder (such as zinc-rich primer) to enhance the anti-corrosion effect.

[0034] A bottom fixing box 5 is fixedly arranged at the bottom of the transformer body 1. A limit fixing component for fixing the transformer body 1 on the hull is arranged at the bottom of the bottom fixing box 5. The limit fixing component includes a support suction cup 71, a folded seat 6, and a vertical column 71. Folded seats 6 are fixedly arranged at the four corners of the bottom of the bottom fixing box 5. A vertical column 7 is inserted into the folded seat 6 in the vertical direction. Adjusting nuts 8 are screwed into the upper and lower surfaces of the vertical column 7 on the folded seat 6. A support suction cup 7 is fixedly arranged at the bottom of the vertical column 7. The cross-sectional dimension of the folded seat 6 is Z-shaped. When the folded seat 6 is installed at the bottom of the bottom fixing box 5, the adjusting nut 8 at the top of the vertical column 7 will be exposed. Workers can use a wrench to turn the adjusting nuts 8 on each vertical column 7 to level the entire marine transformer.

[0035] Refer to Figure 2-8 , heat dissipation fins 2 are equidistantly arranged on the side surface of the outer shell of the transformer body 1. A dust sweeping component for quickly cleaning the dust accumulated between the heat dissipation fins 2 is arranged between multiple groups of heat dissipation fins 2 in the bottom fixing box 5. The dust sweeping component includes a common frame 18, a dust scraping brush 1801, and a pendulum drive component that drives the dust sweeping component to act with the hull swaying. The pendulum drive component includes a drive rack 23, a locking gear 25, and a follower pendulum 29. The common frame 18 is movably sleeved on the outer walls of multiple heat dissipation fins 2. A vertical rod 181 is fixedly arranged in the gap between adjacent heat dissipation fins 2 in the common frame 18. Dust scraping brushes 1801 are fixedly arranged at both ends of the vertical rod 181. The two dust scraping brushes 1801 contact the side surface of the heat dissipation fins 2. The total width of the vertical rod 181 and the two dust scraping brushes 1801 is equal to the width of the gap between adjacent heat dissipation fins 2.

[0036] A docking block 24 is fixedly arranged at the bottom of the common frame 18. The other end of the docking block 24 is fixedly provided with a driving rack 23. A locking gear 25 is stably engaged with the bottom of the driving rack 23. A horizontal shaft 27 is fixedly arranged at the center position on the side of the locking gear 25. The horizontal shaft 27 is rotatably connected to the side of the vertical seat 26. The vertical seat 26 is fixedly arranged at the bottom of the inner cavity of the bottom fixing box 5. The other end of the horizontal shaft 27 is fixedly provided with a swing arm 28. A follower pendulum 29 is fixedly arranged at the bottom of the swing arm 28. The weight of the follower pendulum 29 is set to be relatively large and the length of the swing arm 28 is set to be relatively long. When the transport ship equipped with this transformer sways, the follower pendulum 29 can drive the locking gear 25 to rotate a certain angle.

[0037] Moreover, the number of teeth of the driving rack 23 and the pitch circle diameter of the locking gear 25 need to be set relatively large. When the follower pendulum 29 rotates under force, the small-angle swing displacement of the follower pendulum 29 is amplified, driving the locking gear 25 to rotate at least ninety degrees. The common frame 18 will move to the limit position. When the swing amplitude of the follower pendulum 29 is relatively large, the common frame 18 will also move to the limit position. At this time, the follower pendulum 29 can no longer swing. At this time, the locking gear 25 can only rotate ninety degrees, driving the locking gear 25 to drive the driving rack 23 to move horizontally a relatively large distance, and finally driving multiple dust scraping brushes 1801 on the common frame 18 to move horizontally.

[0038] Refer to Figure 8-12 , a closed frame 11 is fixedly arranged on the front side of the bottom fixing box 5. A dust collecting hopper 3 is arranged at the top of the closed frame 11. A closed component for preventing dust from splashing everywhere when the dust sweeping component works is arranged on the side of the closed frame 11. The closed component includes a closing plate 12, a driven gear 13, a common rack 19 and a follower component. The closing plates 12 are rotatably connected to the side of the closed frame 11 at equal intervals. A driven gear 13 is fixedly arranged at the bottom of the rotating shaft of the closing plate 12. The top view structural shape of the closing plate 12 is a structure that is wide in the middle and narrow at both sides, avoiding the rotation of the closing plate 12 being blocked when adjacent closing plates 12 rotate.

[0039] The driven gear 13 is stably engaged with the common rack 19. A rectangular groove 191 is opened on the bottom surface of the common rack 19. A rectangular column 17 is movably inserted into the rectangular groove 191. The rectangular column 17 is fixedly arranged at the bottom of the bottom plate 9. The bottom plate 9 is fixedly connected to the inside of the closed frame 11. A short vertical plate 10 is fixedly arranged on the front side of the bottom plate 9. A guiding frame 16 is fixedly arranged at the bottom of the outer wall of the rectangular column 17. The width of the guiding frame 16 is greater than the width of the rectangular groove 191. The guiding frame 16 and the rectangular column 17 cooperate to limit the common rack 19 to move horizontally. The common rack 19 is meshed with a plurality of driven gears 13 on the side.

[0040] A guide column 141 is movably inserted into the side of the guide frame 16, and the other end of the guide column 141 is fixedly connected to the side of the fixed block 14, and the fixed block 14 is fixedly arranged at the bottom of the common gear rod 19. The outer wall of the guide column 141 is fixedly connected to one end of the closed spring 15, and the other end of the closed spring 15 is fixedly connected to the side of the guide frame 16. When the closed spring 15 is at its original length, the common gear rod 19 drives the closed plates 12 on the tops of the multiple driven gears 13 to be in a state of opening the closed frame 11. At this time, the transformer body 1 can use the heat dissipation fins 2 to dissipate heat normally.

[0041] When the pendulum driving assembly is in motion, the follower assembly controls the movement of the closing assembly in a linked manner. The follower assembly includes a right-angle block 30, a driving block 31, and an extension column 321. An extension rod 32 is fixedly arranged at the bottom of the common gear rod 19, and an extension column 321 is fixedly arranged on the side of the extension rod 32. A right-angle block 30 is fixedly arranged on the side of the driving gear rod 23, and a driving block 31 is fixedly arranged at the bottom of the right-angle block 30. A vertical surface 310 and an inclined surface 311 are sequentially opened on the side of the driving block 31. One end of the extension column 321 abuts against the side of the vertical surface 310 or the inclined surface 311. When the extension column 321 abuts against the inclined surface 311 and moves from one end of the inclined surface 311 to the other end, the extension column 321 and the driving block 31 will drive the common gear rod 19 to move horizontally, thereby controlling the rotation of the closing plate 12 on the top of the multiple driven gears 13.

[0042] An intermediate plate 22 is fixedly provided in the middle position of the closed frame 11, and a switch assembly for controlling whether the hull exhaust system is connected to the dust hopper 3 is provided on the intermediate plate 22. The switch assembly includes a switching column 21 and a follower gear 210. The intermediate plate 22 is fixedly provided in the middle position of the side of the closed frame 11, and the intermediate plate 22 is rotatably connected to the switching column 21 along the vertical direction. A follower gear 210 is fixedly provided at the bottom of the switching column 21, and the follower gear 210 is stably engaged with the common gear rod 19. The dust hopper 3 is a structure that is narrow at the top and wide at the bottom. A switching hole 20 is provided at the end of the switching column 21, and the diameter of the switching hole 20 is the same as the inner diameter of the dust guide pipe 4. The side of the dust hopper 3 is fixedly connected to the dust guide pipe 4, and the top of the switching column 21 is movably inserted into the inside of the dust guide pipe 4, and the dust guide pipe 4 is horizontally arranged.

[0043] It should be added that the length of the heat dissipation fin 2 needs to be set appropriately. When the common frame 18 moves from one end to the other end of the heat dissipation fin 2, the follower gear 25 rotates 90 degrees, and the switching column 21 also rotates 90 degrees.

[0044] The specific implementation steps and principles of the present invention are as follows: When the follower pendulum 29 is in a vertically stable state, the dust scraping brush 1801 provided on the common frame 18 retracts to the side of the plurality of heat dissipation fins 2. At this time, the plurality of closing plates 12 on the side of the closing frame 11 are in a state of opening the closing frame 11, and the switching holes 20 at the top of the middle plate 22 of the plurality of heat dissipation fins 2 are not communicated with the inner cavity of the dust guide pipe 4. At this time, the extension column 321 is at the end of the inclined surface 311.

[0045] When the transport hull shakes, the follower pendulum 29 will shake, and it will drive the dust scraping brush 1801 on the common frame 18 to move along the side wall of the adjacent heat dissipation fin 2 through the follower gear 25 and the driving rack 23. During this period, the extension column 321 moves from the inclined surface 311 to the side of the vertical surface 310. The extension column 321 is forced to drive the common rack 19 to move horizontally, and the closing spring 15 is stretched. The common rack 19 drives the plurality of closing plates 12 to rotate through the driven gear 13, and the side of the closing frame 13 is closed. At this time, the follower gear 210 will also rotate with the common rack 19, driving the switching column 21 to rotate. The switching hole 20 at the top of the switching column 21 is communicated with the dust guide pipe 4. At this time, the dust collecting hopper 3 is communicated with the marine ventilation system, and the dust scraping brush 1801 provided on the common frame 18 sweeps along the side of the plurality of heat dissipation fins 2. The marine ventilation system sucks away the dust splashed on the side wall of the plurality of heat dissipation fins 2 through the dust collecting hopper 3.

[0046] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A marine transformer with a limited fixing device, comprising a transformer body and a heat dissipation fin, characterized in that: A bottom fixing box is fixedly arranged at the bottom of the transformer body, and a limit fixing assembly for fixing the transformer body on the hull is arranged at the bottom of the bottom fixing box, and the limit fixing assembly includes a supporting suction cup, a folding seat, and a vertical column. Heat dissipation fins are arranged at equal intervals on the side of the transformer body shell, and a dust sweeping assembly for quickly cleaning dust accumulated between the heat dissipation fins is arranged between the multiple groups of heat dissipation fins in the bottom fixing box; The dust sweeping assembly includes a common frame, a dust scraping brush, and a pendulum driving assembly that drives the dust sweeping assembly to move as the hull shakes, the pendulum driving assembly includes a driving gear rod, a locking gear, and a follower pendulum, a closed frame is fixedly provided on the front side of the bottom solid box, a dust hopper is provided on the top of the closed frame, and a closed assembly is provided on the side of the closed frame to prevent dust from splashing when the dust sweeping assembly is working, the closed assembly includes a closing plate, a driven gear, a common gear rod, and a follower assembly, and the follower assembly is linked to control the movement of the closed assembly when the pendulum driving assembly is actuated, an intermediate plate is fixedly provided in the middle position of the closed frame, and a switch assembly for controlling whether the hull exhaust system is connected to the dust hopper is provided on the intermediate plate.

2. A marine transformer with a limited position fixing device according to claim 1, characterized in that: The four corners of the bottom of the bottom fixing box are fixedly provided with folding seats, and the folding seats are movably inserted with vertical columns along the vertical direction. The vertical columns are threaded with adjustment nuts on the upper and lower surfaces of the folding seats, and a supporting suction cup is fixedly provided at the bottom of the vertical columns.

3. A marine transformer with a limited position fixing device according to claim 1, characterized in that: The common frame is movably sleeved on the outer walls of multiple heat dissipation fins, a docking block is fixedly provided at the bottom of the common frame, a driving gear rod is fixedly provided at the other end of the docking block, a locking gear is stably meshed at the bottom of the driving gear rod, a horizontal axis is fixedly provided at the center position of the side of the locking gear, the horizontal axis is rotatably connected to the side of the vertical seat, the vertical seat is fixedly provided at the bottom of the inner cavity of the bottom solid box, a swing arm is fixedly provided at the other end of the horizontal axis, and a follower pendulum is fixedly provided at the bottom of the swing arm.

4. A marine transformer with a limited position fixing device according to claim 1, characterized in that: The side of the closed frame is equidistantly rotatably connected with a closed plate, the bottom of the closed plate shaft is fixedly provided with a driven gear, the driven gear is stably meshed with a common gear rod, the bottom surface of the common gear rod is provided with a rectangular groove, a rectangular column is movably inserted into the rectangular groove, the rectangular column is fixedly provided at the bottom of the bottom plate, the bottom plate is fixedly connected to the inside of the closed frame, a short vertical plate is fixedly provided on the front side of the bottom plate, and a guide frame is fixedly provided at the bottom of the outer wall of the rectangular column.

5. A marine transformer with a limited position fixing device according to claim 3, characterized in that: The follower assembly includes a right-angle block, a driving block, and an extension column. An extension rod is fixedly provided at the bottom of the common gear rod, an extension column is fixedly provided on the side of the extension rod, a right-angle block is fixedly provided on the side of the driving gear rod, a driving block is fixedly provided at the bottom of the right-angle block, a vertical surface and an inclined surface are sequentially opened on the side of the driving block, and one end of the extension column is abutted against the vertical surface or the side of the inclined surface.

6. A marine transformer with a limited position fixing device according to claim 4, characterized in that: The width of the guide frame is greater than the width of the rectangular groove, a guide column is movably inserted into the side of the guide frame, the other end of the guide column is fixedly connected to the side of the fixed block, the fixed block is fixedly set at the bottom of the common gear rod, the outer wall of the guide column is fixedly connected to one end of the closed spring, and the other end of the closed spring is fixedly connected to the side of the guide frame.

7. A marine transformer with a limited position fixing device according to claim 1, characterized in that: The switch assembly includes a switching column and a follower gear. The intermediate plate is fixedly arranged in the middle position of the side of the closed frame. The intermediate plate is connected to the switching column for rotation in the vertical direction. The follower gear is fixedly arranged at the bottom of the switching column, and the follower gear is stably meshed with the common gear rod.

8. A marine transformer with a limited position fixing device according to claim 7, characterized in that: The side of the dust collecting hopper is fixedly connected with a dust guiding pipe, the top of the switching column is movably inserted into the dust guiding pipe, and the dust guiding pipe is horizontally arranged.

9. A marine transformer with a limited position fixing device according to claim 3, characterized in that: The common frame is fixedly provided with a vertical rod in the gap between adjacent heat dissipation fins, and both ends of the vertical rod are fixedly provided with dust scraping brushes, and the two dust scraping brushes contact the side surfaces of the heat dissipation fins.

10. A marine transformer with a limited position fixing device according to claim 8, characterized in that: The dust collecting hopper is a structure that is narrow at the top and wide at the bottom. A switching hole is provided at the end of the switching column, and the diameter of the switching hole is the same as the inner diameter of the dust guiding pipe.

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