Rainproof structure of smoke exhaust pipe of ship generator

By installing a rainproof mechanism inside the exhaust duct of the ship's generator, using louvers and a motor-driven shielding cloth, the problem of equipment failure caused by rainwater intrusion was solved, achieving stable operation and extended lifespan of the equipment, and improving the safety and reliability of the ship.

CN224214249UActive Publication Date: 2026-05-08威海市金运游艇有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
威海市金运游艇有限公司
Filing Date
2025-07-15
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

In the existing technology, when the exhaust pipe of a ship's generator is open when the ship is stopped or the engine is not running, rainwater can easily enter the engine room through the pipe, causing equipment to become damp, short circuits and other malfunctions, affecting the normal starting and operation of the engine.

Method used

A rainproof structure for a marine generator exhaust pipe was designed, including a fixed frame and a rainproof mechanism inside the exhaust pipe. It utilizes louvers, baffles, gears, and a motor-driven shielding cloth. By rotating the louvers and moving the baffles, rainwater is prevented from entering the pipe, and the shielding cloth is driven by the motor for secondary protection.

Benefits of technology

It effectively prevents rainwater from entering the pipes, avoids short circuits, ensures stable operation of the electrical system, reduces fire hazards, prevents metal parts from rusting, extends equipment life, and improves the safety and reliability of ship operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of smoke exhaust pipes of generators, and particularly relates to a rainproof structure of a smoke exhaust pipe of a ship generator, which comprises a smoke exhaust pipeline, a fixed frame is fixedly mounted on the inner wall of the smoke exhaust pipeline, a shutter is rotatably connected to the inner wall of the fixed frame, and the inner wall of the shutter is fixedly connected with the smoke exhaust pipeline. A rainproof mechanism is arranged on the inner wall of the fixing frame and comprises a drainage groove, and the drainage groove is formed in the inner side of the bottom of the fixing frame. By arranging the rainproof mechanism, rainwater can be effectively prevented from entering the pipeline, the rainwater is prevented from making contact with peripheral electrical equipment and circuits to cause short-circuit faults, stable operation of a ship electrical system is guaranteed, potential safety hazards such as fire disasters are reduced, meanwhile, the rainwater is prevented from rusting metal parts of the pipeline and an engine connected with the pipeline, and the mechanical performance of the parts is maintained; the problems of strength reduction, friction increase and the like caused by rusting are reduced, so that the overall service life of equipment is prolonged, and the safety and reliability of ship operation are improved.
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Description

Technical Field

[0001] This utility model relates to the field of generator exhaust pipe technology, specifically a rainproof structure for marine generator exhaust pipes. Background Technology

[0002] Ships are usually equipped with backup generators to ensure the safety of the ship's power supply. Since backup generators are only used for emergency purposes, they are used very infrequently. Backup generators are equipped with exhaust pipes to exhaust smoke when they are in operation.

[0003] During the exhaust process, direct exhaust is usually used, meaning that the exhaust gas is directly discharged outside the ship through the pipe. When the ship is at rest or the engine is not running, the exhaust pipe is open, and rainwater can easily enter the engine room through the pipe, causing equipment to get damp, short circuits and other malfunctions, affecting the normal starting and operation of the engine. Utility Model Content

[0004] To address the shortcomings of existing technologies, where exhaust pipes are left open, rainwater can easily enter the engine compartment, causing equipment to become damp, short-circuit, or otherwise malfunction, thus affecting the normal starting and operation of the engine. This invention proposes a rainproof structure for the exhaust pipes of marine generators.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a rainproof structure for a marine generator exhaust pipe, including an exhaust pipe, a fixed frame fixedly installed on the inner wall of the exhaust pipe, louvers rotatably connected to the inner wall of the fixed frame, and a rainproof mechanism provided on the inner wall of the fixed frame.

[0006] The rainproof mechanism includes a drainage channel, which is located on the inner side of the bottom of the fixed frame. A baffle is slidably connected to the inner wall of the drainage channel. A gear is fixedly installed at one end of the louver, a connecting rod is fixedly installed at one end of the baffle, and a toothed plate is fixedly installed at one end of the connecting rod. The toothed plate and the teeth of the gear mesh with each other.

[0007] Preferably, the top of the fixed frame is provided with a fixed groove, the inner wall of the fixed groove is fixedly installed with a motor, the inner side of the top of the fixed frame is provided with a movable groove, the output end of the motor is fixedly installed with a winding rod, and a shielding cloth is fixedly installed on the surface of the winding rod, and the shielding cloth is wound up on the surface of the winding rod.

[0008] Preferably, a counterweight is fixedly installed on the surface of the winding rod, and the surface of the counterweight is slidably connected to the inner side of the fixed frame.

[0009] Preferably, the bottom of the fixing frame is provided with a placement groove, and the inner cavity of the placement groove is used in conjunction with the surface of the counterweight.

[0010] Preferably, the inner wall of the fixed frame is provided with a support groove, and a support block is fixedly installed on the surface of the connecting rod, with the inner cavity of the support groove and the surface of the support block being slidably connected.

[0011] Preferably, a protective box is fixedly installed on the inner wall of the fixing groove, and the inner cavity of the protective box is fixedly connected to the surface of the motor.

[0012] Preferably, the inner wall of the drainage channel is provided with a limiting groove, and the inner cavity of the limiting groove is slidably connected to the surface of the connecting rod.

[0013] The advantages of this utility model are:

[0014] This invention, by incorporating a rainproof mechanism, effectively prevents rainwater from entering the pipe, thus avoiding short circuits caused by rainwater contacting surrounding electrical equipment and wiring. This ensures the stable operation of the ship's electrical system, reduces safety hazards such as fires, and prevents rainwater from causing rust on the pipe and the metal components of the connected engine. It also maintains the mechanical properties of the components, reduces problems such as reduced strength and increased friction caused by rust, thereby extending the overall service life of the equipment and improving the safety and reliability of ship operation. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the rainproof structure of this utility model;

[0018] Figure 3 This is an exploded view of the motor and protective box of this utility model;

[0019] Figure 4 For the present utility model Figure 3 Enlarged view of point A in the middle;

[0020] Figure 5 This is a schematic diagram of the structure of the gear, tooth plate and connecting rod of this utility model.

[0021] In the diagram: 1. Exhaust duct; 2. Fixed frame; 3. Louver; 4. Rainproof mechanism; 401. Drainage channel; 402. Baffle; 403. Gear; 404. Connecting rod; 405. Tooth plate; 5. Fixed slot; 6. Motor; 7. Movable slot; 8. Retracting rod; 9. Covering cloth; 10. Counterweight; 11. Placement slot; 12. Support slot; 13. Support block; 14. Protective box; 15. Restriction slot. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0023] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0024] This application discloses a rainproof structure for the exhaust pipe of a ship's generator. (Refer to...) Figures 1 to 5 The rainproof structure of the exhaust pipe of the ship generator includes an exhaust pipe 1, a fixed frame 2 is fixedly installed on the inner wall of the exhaust pipe 1, a louver 3 is rotatably connected to the inner wall of the fixed frame 2, and a rainproof mechanism 4 is provided on the inner wall of the fixed frame 2.

[0025] The rainproof mechanism 4 includes a drainage channel 401, which is located on the inner side of the bottom of the fixed frame 2. A baffle 402 is slidably connected to the inner wall of the drainage channel 401. A gear 403 is fixedly installed at one end of the louver 3, and a connecting rod 404 is fixedly installed at one end of the baffle 402. A toothed plate 405 is fixedly installed at one end of the connecting rod 404. The teeth of the toothed plate 405 and the gear 403 mesh with each other. By setting up the rainproof mechanism 4, rainwater can be effectively blocked from entering the pipe, preventing rainwater from contacting surrounding electrical equipment and lines and causing short circuit faults. This ensures the stable operation of the ship's electrical system, reduces safety hazards such as fire, and prevents rainwater from causing rust on the pipe and the metal parts of the connected engine. This maintains the mechanical properties of the parts, reduces problems such as reduced strength and increased friction caused by rust, and thus extends the overall service life of the equipment and improves the safety and reliability of ship operation.

[0026] Reference Figure 3 and Figure 4The top of the fixed frame 2 is provided with a fixed groove 5, and a motor 6 is fixedly installed on the inner wall of the fixed groove 5. The inner side of the top of the fixed frame 2 is provided with a movable groove 7. A winding rod 8 is fixedly installed at the output end of the motor 6. A shielding cloth 9 is fixedly installed on the surface of the winding rod 8. The shielding cloth 9 is rolled up on the surface of the winding rod 8. By setting the shielding cloth 9, which is made of nylon, a rainproof effect can be achieved. The motor 6 is started by an external power supply. The rotation of the motor 6 can drive the winding rod 8 to cancel the winding of the shielding cloth 9, thereby achieving a second protection against rainwater entering the smoke exhaust pipe 1 and further preventing rainwater from entering.

[0027] Reference Figure 4 A counterweight 10 is fixedly installed on the surface of the shielding cloth 9. The surface of the counterweight 10 is slidably connected to the inner side of the fixed frame 2. By setting the counterweight 10, the bottom support capacity of the shielding cloth 9 during operation can be increased, ensuring the working effect of the shielding plate 402.

[0028] Reference Figure 3 The bottom of the fixed frame 2 is provided with a placement groove 11. The inner cavity of the placement groove 11 is used in conjunction with the surface of the counterweight 10. By setting the placement groove 11, the counterweight 10 can enter the inner cavity of the placement groove 11, thereby fixing the position of the counterweight 10 and further increasing the stability of the shielding cloth 9.

[0029] Reference Figure 2 and Figure 5 The inner wall of the fixed frame 2 is provided with a support groove 12, and a support block 13 is fixedly installed on the surface of the connecting rod 404. The inner cavity of the support groove 12 is slidably connected to the surface of the support block 13. Through the slidable connection between the support groove 12 and the support block 13, the connecting rod 404 can be supported, thereby improving the working stability of the connecting rod 404.

[0030] Reference Figure 3 A protective box 14 is fixedly installed on the inner wall of the fixing groove 5. The inner cavity of the protective box 14 is fixedly connected to the surface of the motor 6. By setting the protective box 14, the motor 6 can be protected, avoiding contact between the motor 6 and rainwater, and increasing the service life of the motor 6.

[0031] Reference Figure 2 The inner wall of the drainage trough 401 is provided with a limiting groove 15. The inner cavity of the limiting groove 15 is slidably connected to the surface of the connecting rod 404. By setting the limiting groove 15, the movement distance of the toothed plate 405 can be limited, and the movement of the baffle 402 can be guided.

[0032] Working principle: When the ship's engine is running, the generated exhaust gas is discharged from the exhaust pipe 1. When the exhaust pipe 1 is in normal use, the louvers 3 rotate, creating a gap between the fixed frame 2 and the louvers 3, allowing the exhaust gas to overflow from the connection point and achieve the exhaust effect. When the exhaust pipe 1 is not in use, the louvers 3 stack on top of each other, which can close the exhaust pipe 1 and prevent rainwater from entering. At the same time, when the louvers 3 rotate, they will drive the toothed plate 405 to move, thereby removing the obstruction of the baffle 402 on the drainage channel 401. When rainwater enters the inner cavity of the fixed channel 5, it can be discharged through the drainage channel 401. In addition, when the louvers 3 are working, the baffle 402 can protect the drainage channel 401 and prevent impurities from entering and causing blockage of the drainage channel 401.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A rainproof structure for the exhaust pipe of a marine generator, characterized in that: Includes a smoke exhaust pipe (1), the inner wall of which is fixedly installed with a fixed frame (2), the inner wall of which is rotatably connected with louvers (3), and the inner wall of which is provided with a rainproof mechanism (4); The rainproof mechanism (4) includes a drainage channel (401), which is located on the inner side of the bottom of the fixed frame (2). A baffle (402) is slidably connected to the inner wall of the drainage channel (401). A gear (403) is fixedly installed at one end of the louver (3). A connecting rod (404) is fixedly installed at one end of the baffle (402). A toothed plate (405) is fixedly installed at one end of the connecting rod (404). The teeth of the toothed plate (405) mesh with the teeth of the gear (403).

2. The rainproof structure of the marine generator exhaust pipe according to claim 1, characterized in that: The top of the fixed frame (2) is provided with a fixed groove (5), and a motor (6) is fixedly installed on the inner wall of the fixed groove (5). The inner side of the top of the fixed frame (2) is provided with a movable groove (7). A winding rod (8) is fixedly installed at the output end of the motor (6). A shielding cloth (9) is fixedly installed on the surface of the winding rod (8). The shielding cloth (9) is wound up on the surface of the winding rod (8).

3. The rainproof structure for the exhaust pipe of a ship generator according to claim 2, characterized in that: A counterweight (10) is fixedly installed on the surface of the shielding cloth (9), and the surface of the counterweight (10) is slidably connected to the inner side of the fixed frame (2).

4. The rainproof structure of the marine generator exhaust pipe according to claim 3, characterized in that: The bottom of the fixed frame (2) is provided with a placement groove (11), and the inner cavity of the placement groove (11) is used in conjunction with the surface of the counterweight (10).

5. The rainproof structure of the marine generator exhaust pipe according to claim 1, characterized in that: The inner wall of the fixed frame (2) is provided with a support groove (12), and a support block (13) is fixedly installed on the surface of the connecting rod (404). The inner cavity of the support groove (12) is slidably connected to the surface of the support block (13).

6. The rainproof structure of the marine generator exhaust pipe according to claim 2, characterized in that: A protective box (14) is fixedly installed on the inner wall of the fixed groove (5), and the inner cavity of the protective box (14) is fixedly connected to the surface of the motor (6).

7. The rainproof structure for the exhaust pipe of a ship generator according to claim 1, characterized in that: The inner wall of the drainage trough (401) is provided with a limiting groove (15), and the inner cavity of the limiting groove (15) is slidably connected to the surface of the connecting rod (404).