Automatic cleaning right angle mud box for ship

By designing an automatic cleaning right-angle mud box and utilizing a combination of propulsion cylinders and scrapers, the machine malfunction caused by filter clogging was solved, achieving automatic cleaning and reset functions and improving the stability of the equipment.

CN114671004BActive Publication Date: 2026-04-17天长市蓝天船舶设备制造有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
天长市蓝天船舶设备制造有限公司
Filing Date
2022-02-14
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing shipboard mud boxes require manual cleaning after the filter screen becomes clogged, which increases workload and can easily lead to machine failure.

Method used

An automatic cleaning right-angle mud box for marine use was designed. It achieves automatic cleaning of deposits on the filter screen through the combination of propulsion cylinder, inner cylinder, pressure air bag and scraper, including rotating scraper and reset function.

Benefits of technology

It enables automatic cleaning of the inside of the mud tank when there is too much buildup, scraping off the mud and resetting the filter screen, reducing the amount of manual maintenance and improving the stability and reliability of the equipment.

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Abstract

The application discloses an automatic cleaning right-angle mud box for a ship and relates to the technical field of ship tools, which comprises a box body, a propelling cylinder, an inner cylinder, a pressure air bag, a water inlet pipe, a water outlet pipe and a sewage pipe, the inner cylinder is provided with an inlet and outlet opening, the inner cylinder is provided with a filter screen, the inner cylinder is provided with a penetrating annular groove, the box body is internally fixedly provided with a scraper, the box body is provided with a rotating base, the inner cylinder is connected with a connecting shaft, the connecting shaft is provided with a rotating gear, the inner cylinder is provided with a pressure chamber, the pressure chamber is provided with a transmission air bag, the transmission air bag is connected with the pressure air bag, the pressure chamber is provided with symmetrical sliding grooves, the transmission air bag is connected with an extendable air bag, the extendable air bag is provided with supporting columns, the box body is provided with spring grooves, the spring grooves are provided with spring columns, the spring columns are provided with compression springs, and the spring columns are provided with sliding columns. After the accumulated substances in the mud box are excessively accumulated, the mud box can be automatically cleaned, the mud stains can be scraped off, and the filter screen can be cleaned; after the cleaning, the filter screen is reset, the structure is stable, and the application is suitable for promotion.
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Description

Technical Field

[0001] This invention belongs to the field of marine equipment technology, specifically relating to a marine automatic cleaning right-angle mud box. Background Technology

[0002] The bilge water system is mainly divided into: a system for draining bilge water overboard; a system for draining bilge water and accidental ingress, consisting of pumps, accessories, and pipelines; and a pipeline system for draining bilge water or bilge water and seepage water from cargo holds and engine rooms of ships overboard. Mud boxes are installed on the bilge water suction pipes in machine spaces and shaft tunnels to prevent cotton yarn, cloth strips, sludge, and other contaminants from entering the suction pipe. Mud boxes can prevent pipelines, valves, and pumps from being blocked or blocked by decaying debris. Right-angle mud boxes are a type of mud box. Mud boxes generally consist of a mud box body, cover plate, filter plate, and screw plug. They filter bilge water to prevent silt and yarn from entering the suction pump and causing malfunctions and damage to the pump.

[0003] In existing marine mud boxes, after the mud box blocks obstructions, the filter screen used for blocking requires manual cleaning, which increases the workload. The machine is prone to failure when the filter screen is clogged. Therefore, this invention proposes a marine automatic cleaning right-angle mud box that can automatically clean the inside of the mud box, scrape off the mud and clean the filter screen after excessive accumulation of material, and reset the filter screen after cleaning. Summary of the Invention

[0004] The purpose of this invention is to provide a marine automatic cleaning right-angle mud box. When too much material accumulates inside the mud box, it can automatically clean the inside of the mud box, scrape off the mud and clean the filter screen. After cleaning, the filter screen is reset. The structure is stable and suitable for widespread application.

[0005] This invention provides the following technical solution: a marine automatic cleaning right-angle mud box, comprising a box body, a propulsion cylinder, an inner cylinder, and a pressure airbag. A water inlet pipe is fixedly provided on the top of the box body, a water outlet pipe is fixedly provided on the side of the box body, and a sewage discharge pipe is fixedly provided at the bottom of the box body. The box body is cylindrical. The inner cylinder is located inside the box body, and its outer side wall is slidably connected to the inner side wall of the box body. An inlet and outlet opening is provided on the top of the inner cylinder. A filter screen is fixedly provided on the side of the inner cylinder. A through annular groove is provided on the side of the inner cylinder near the filter screen. A scraper through the annular groove is fixedly provided inside the box body.

[0006] A rotating base is fixedly installed on one side wall of the housing. The inner cylinder is located on one side of the rotating base and is fixedly connected to a connecting shaft by connecting bolts. The connecting shaft extends through the housing and into the rotating base. A rotating gear is fixedly installed on the connecting shaft within the rotating base. A pressure chamber is fixedly installed on the side of the inner cylinder away from the filter screen. A transmission airbag is fixedly installed within the pressure chamber. A pressure airbag is fixedly connected to the transmission airbag through the pressure chamber. The pressure airbag is located within the inner cylinder. Symmetrical sliding grooves are fixedly installed on both sides of the pressure chamber. A telescopic airbag is fixedly connected to the transmission airbag through the sliding groove. A support column is fixedly installed at the top of the telescopic airbag. A spring groove is fixedly installed on the housing corresponding to the sliding groove. A spring column extends through the spring groove. A compression spring is fixedly installed on the spring column. A sliding column is fixedly installed on the spring column. The sliding column extends into the sliding groove and is slidably connected to the support column. A propulsion cylinder is fixedly installed on one side of the housing located on the rotating base. A cylinder switch is fixedly installed on one side of the propulsion cylinder. A power switch is fixedly installed at the position opposite to the spring column of the cylinder switch.

[0007] Preferably, the output shaft of the propulsion cylinder is fixedly connected to a telescopic shaft, and the rotating base is provided with a through hole corresponding to the telescopic shaft. The telescopic shaft passes through the through hole and is opposite to the position of the rotating gear. Both the rotating gear and the telescopic shaft are fixedly provided with meshing teeth that mesh with each other. The rotating base is located below the telescopic shaft and is provided with an auxiliary roller through a rotating shaft. The auxiliary roller is rotatably connected to the lower part of the telescopic shaft. The connecting shaft passes through the rotating base and is fixedly connected to a stabilizing disc.

[0008] Preferably, a handle shaft is fixedly connected to the side of the inner cylinder away from the connecting shaft by a connecting bolt, and a spare handle is fixedly connected to the handle shaft.

[0009] Preferably, the scraper has an inclined surface on the side near the filter screen, and a brush is fixedly provided on the side of the scraper opposite to the filter screen. The length of the annular groove is half a circle around the inner cylinder.

[0010] Preferably, the shape of the inlet / outlet opening matches the shape of the water inlet pipe or the sewage pipe, and when the inlet / outlet opening is opposite to the water inlet pipe or the sewage pipe, the opening of the inlet / outlet opening is sealed to it.

[0011] Preferably, the power switch is a push-button switch, and the length of the spring post is such that when it is fully pushed out by the support post, the spring post will energize the power switch.

[0012] Preferably, the inlet pipe, outlet pipe, and sewage pipe are all fixedly equipped with connecting flanges. The inlet pipe is detachably connected to a water suction pipe through the connecting flange. The outlet pipe is detachably connected to a drainage pipe through the connecting flange. The sewage pipe is detachably connected to a sludge accumulation bin through the connecting flange.

[0013] The beneficial effects of this invention are as follows: When excessive deposits accumulate in the mud tank, the inside of the mud tank can be automatically cleaned, the mud and grime can be scraped off, and the filter screen can be cleaned. After cleaning, the filter screen can be reset, resulting in a stable structure. Specifically, as follows:

[0014] (1) The present invention is provided with an inner cylinder. By rotating the inner cylinder, the position of the inlet and outlet openings can be switched. When the inlet and outlet openings are connected to the water inlet pipe, the position of the filter screen is opposite to the position of the water outlet pipe. The water inlet pipe injects water into the inner cylinder, and the water is filtered by the filter screen. The filtered water is discharged from the water outlet pipe. When there is too much blockage on the filter screen, the water inlet pipe maintains a constant water injection speed, the pressure in the inner cylinder increases, and the pressure airbag is squeezed. The pressure airbag transmits the pressure to the transmission airbag. The transmission airbag squeezes the telescopic airbag, causing the support column to push the sliding column. After the sliding column is pushed away from the sliding groove, the spring column at the other end of the sliding column touches the power switch, causing the propulsion cylinder to run, so as to automatically rotate the inner cylinder when there is too much accumulation.

[0015] (2) The present invention is provided with a rotating base. After the propulsion cylinder is running, its output shaft pushes the telescopic shaft. The telescopic shaft moves along the through hole. The meshing teeth on the telescopic shaft drive the rotating gear to rotate. The auxiliary roller lifts the telescopic shaft so that the gear meshes more tightly. The rotating gear drives the inner cylinder to rotate. During the rotation of the inner cylinder, the filter screen and the scraper move relative to each other, so that the scraper scrapes off the deposits attached to the filter screen. When the inlet and outlet moves to the sewage pipe, the scraped deposits are discharged from the sewage pipe. The propulsion cylinder rotates in the opposite direction to reset the inner cylinder, and the mud box continues to operate.

[0016] (3) The present invention is provided with a spring groove. After the propulsion cylinder resets the inner cylinder, the compression spring pushes the sliding column into the sliding groove after the sliding column is aligned with the sliding groove, so that the power switch is disconnected and the propulsion cylinder is closed. If the propulsion cylinder malfunctions, the inner cylinder can be manually rotated for cleaning by rotating the spare handle. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is an overall schematic diagram of the present invention;

[0019] Figure 2 This is a cross-sectional view of the present invention;

[0020] Figure 3 This is a longitudinal sectional view of the present invention;

[0021] Figure 4 This is an enlarged view of point A in the present invention;

[0022] Figure 5This is an enlarged view of section B of the present invention;

[0023] Figure 6 This is a cross-sectional view of the rotating base of the present invention.

[0024] The components in the diagram are labeled as follows: 1. Housing, 2. Inlet pipe, 3. Outlet pipe, 4. Sewage pipe, 5. Connecting flange, 6. Rotating base, 7. Propulsion cylinder, 8. Cylinder switch, 9. Spare handle, 10. Stabilizing plate, 11. Inner cylinder, 12. Connecting bolt, 13. Inlet / outlet opening, 14. Filter screen, 15. Pressure airbag, 16. Pressure chamber, 17. Transmission airbag, 18. Annular groove, 19. Sliding groove, 20. Telescopic airbag, 21. Spring groove, 22. Handle shaft, 23. Connecting shaft, 24. Rotating gear, 25. Scraper, 26. Inclined surface, 27. Support column, 28. Sliding column, 29. Spring column, 30. Compression spring, 31. Power switch, 32. Telescopic shaft, 33. Auxiliary roller, 34. Meshing teeth, 35. Through hole. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0026] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0028] The structural features of the present invention will now be described in detail with reference to the accompanying drawings.

[0029] See Figure 1-3A marine automatic cleaning right-angle mud box includes a box body 1, a propulsion cylinder 7, an inner cylinder 11, and a pressure airbag 15. A water inlet pipe 2 is fixedly installed on the top of the box body 1, a water outlet pipe 3 is fixedly installed on the side of the box body 1, and a sewage discharge pipe 4 is fixedly installed at the bottom of the box body 1. The water inlet pipe 2, water outlet pipe 3, and sewage discharge pipe 4 are all fixedly equipped with connecting flanges 5. The water inlet pipe 2 is detachably connected to a suction pipe via the connecting flanges 5, the water outlet pipe 3 is detachably connected to a drainage pipe via the connecting flanges 5, and the sewage discharge pipe 4 is detachably connected to a mud accumulation bin via the connecting flanges 5. The housing 1 is cylindrical, and the inner cylinder 11 is located inside the housing 1. Its outer side wall is slidably connected to the inner side wall of the housing 1. The inner cylinder 11 is provided with an inlet / outlet opening 13, through which water enters or accumulated material is discharged. A filter screen 14 is fixedly provided on the side of the inner cylinder 11 for filtration. The inner cylinder 11 is provided with a through annular groove 18 near the filter screen, through which the scraper 25 is provided for movement. The scraper 25 through the annular groove 18 is fixedly provided inside the housing 1, through which the accumulated material on the filter screen 14 is scraped off.

[0030] See Figure 2 , 3 5. A rotating base 6 is fixedly provided on one side wall of the housing 1. The inner cylinder 11 is located on one side of the rotating base 6 and is fixedly connected to a connecting shaft 23 by connecting bolts 12. The connecting shaft 23 extends through the housing 1 and into the rotating base 6. A rotating gear 24 is fixedly provided in the rotating base 6. The rotating gear 24 drives the inner cylinder 11 to rotate. A pressure chamber 16 is fixedly provided on the side of the inner cylinder 11 away from the filter screen 14. A transmission airbag 17 is fixedly provided in the pressure chamber 16. The pressure received by the pressure airbag 15 is transmitted to the telescopic airbag 20 through the transmission airbag 17. The transmission airbag 17 is fixedly connected to the pressure airbag 15 through the pressure chamber 16. The pressure airbag 15 is located in the inner cylinder 11. Symmetrical sliding grooves 19 are fixedly provided on both sides of the pressure chamber 16. The transmission airbag 17 is fixedly connected to the telescopic airbag 20 through the sliding grooves 19. The telescopic airbag 20 pushes the support column 27 forward. The support column 27 is fixedly provided at the top of the telescopic airbag 20.

[0031] See Figure 3 , 5A spring groove 21 is fixedly provided at the corresponding sliding groove 19 of the housing 1. A spring column 29 is inserted through the spring groove 21. The power switch 31 is connected through the spring column 29. A compression spring 30 is fixedly provided on the spring column 29. A sliding column 28 is fixedly provided on the spring column 29. The sliding column 28 is inserted into the sliding groove 19 and is slidably connected to the support column 27. A propulsion cylinder 7 is fixedly provided on one side of the housing 1 located on the rotating base 6. The operation of the propulsion cylinder 7 drives the inner cylinder 11 to rotate. A cylinder switch 8 is fixedly provided on one side of the propulsion cylinder 7. A power switch 31 is fixedly provided at the position opposite to the spring column 29 of the cylinder switch 8. The power switch 31 is a push switch. When the length of the spring column 29 is sufficient to be fully pushed out by the support column 27, the spring column 29 will connect the power switch 31.

[0032] See Figure 3 , 6 The output shaft of the propulsion cylinder 7 is fixedly connected to a telescopic shaft 32. The rotating base 6 is provided with a through hole 35 corresponding to the telescopic shaft 32. The telescopic shaft 32 passes through the through hole 35 and is positioned opposite to the rotating gear 24. The telescopic shaft 32 drives the rotating gear 24 to rotate. Both the rotating gear 24 and the telescopic shaft 32 are fixedly provided with meshing teeth 34 that mesh with each other. The rotating base 6 is located below the telescopic shaft 32 and is provided with an auxiliary roller 33 via a rotating shaft. The auxiliary roller 33 lifts the telescopic shaft 32 to make the gear mesh more tightly. The auxiliary roller 33 is rolledly connected to the lower part of the telescopic shaft 32. The connecting shaft 23 passes through the rotating base 6 and is fixedly connected to a stabilizing disc 10 to maintain the stability of the rotating gear 24 when it rotates.

[0033] See Figure 3 The inner cylinder 11 is fixedly connected to the handle shaft 22 on the side away from the connecting shaft 23 by the connecting bolt 12. The handle shaft 22 is fixedly connected to the spare handle 9. After the propulsion cylinder 7 malfunctions, the inner cylinder 11 can be manually rotated for cleaning by rotating the spare handle 9.

[0034] Referring to 2 and 4, the scraper 25 has an inclined surface 26 on one side near the filter screen 14, and a brush is fixed on the side of the scraper 25 opposite to the filter screen 14. The length of the annular groove 18 is half a circle around the inner cylinder 11.

[0035] The shape of the inlet / outlet opening 13 matches the pipe shape of the water inlet pipe 2 and the sewage pipe 4, and when the position of the inlet / outlet opening 13 is opposite to the water inlet pipe 2 or the sewage pipe 4, the opening of the inlet / outlet opening 13 is sealed to it.

[0036] The marine automatic cleaning right-angle mud box of the present invention can automatically clean the inside of the mud box after excessive accumulation of debris, scrape off the mud and dirt, clean the filter screen, and reset the filter screen after cleaning. The structure is stable and suitable for widespread application.

[0037] For specific usage, please refer to... Figure 1-3By rotating the inner cylinder 11 to switch the position of the inlet and outlet opening 13, when the inlet and outlet opening 13 is connected to the water inlet pipe 2, the position of the filter screen 14 is opposite to the position of the water outlet pipe 3. The water inlet pipe 2 injects water into the inner cylinder 11, filters the injected water through the filter screen 14, and discharges the filtered water from the water outlet pipe 3. When there is too much blockage on the filter screen 14, the water inlet pipe 2 maintains a constant water injection speed, the pressure in the inner cylinder 11 increases, and squeezes the pressure airbag 15. The pressure airbag 15 transmits the pressure to the transmission airbag 17, and the transmission airbag 17 squeezes the telescopic airbag 20, causing the support column 27 to push the sliding column 28. After the sliding column 28 is pushed away from the sliding groove 19, the spring column 29 at the other end of the sliding column 28 touches the power switch 31, causing the propulsion cylinder 7 to operate, so as to automatically rotate the inner cylinder 11 when there is too much accumulation.

[0038] See Figure 3-6 After the propulsion cylinder 7 operates, its output shaft pushes the telescopic shaft 32 forward. The telescopic shaft 32 moves along the through hole 35. The meshing teeth 34 on the telescopic shaft 32 drive the rotating gear 24 to rotate. The auxiliary roller 33 lifts the telescopic shaft 32 to make the gear mesh more tightly. The rotating gear 24 drives the inner cylinder 11 to rotate. During the rotation of the inner cylinder 11, the filter screen 14 and the scraper 25 move relative to each other, causing the scraper 25 to scrape off the deposits attached to the filter screen 14. When the inlet / outlet opening 13 moves to the drain pipe 4, the scraped deposits are discharged from the drain pipe 4. The propulsion cylinder 7 rotates in the reverse direction to reset the inner cylinder 11, and the mud box continues to operate.

[0039] Referring to 3 and 5, after the propulsion cylinder 7 resets the inner cylinder 11, the compression spring 30 pushes the sliding column 28 into the sliding groove 19 after it is aligned with the position of the sliding groove 19, so that the power switch 31 is disconnected and the propulsion cylinder 7 is turned off. If the propulsion cylinder 7 malfunctions, the inner cylinder 11 can be manually rotated for cleaning by rotating the spare handle 9.

[0040] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A marine automatic cleaning right-angle mud box, comprising a box body (1), a propulsion cylinder (7), an inner cylinder (11), and a pressure airbag (15), characterized in that, A water inlet pipe (2) is fixedly installed on the top of the box (1), a water outlet pipe (3) is fixedly installed on the side of the box (1), a sewage pipe (4) is fixedly installed at the bottom of the box (1), the box (1) is a cylinder, the inner cylinder (11) is located inside the box (1), and its outer side wall is slidably connected to the inner side wall of the box (1), an inlet and outlet opening (13) is provided on the top of the inner cylinder (11), a filter screen (14) is fixedly installed on the side of the inner cylinder (11), a through annular groove (18) is provided on the side of the inner cylinder (11) near the filter screen, and a scraper (25) through the annular groove (18) is fixedly installed inside the box (1). A rotating base (6) is fixedly provided on one side wall of the housing (1). The inner cylinder (11) is located on one side of the rotating base (6) and is fixedly connected to a connecting shaft (23) by a connecting bolt (12). The connecting shaft (23) extends through the housing (1) into the rotating base (6). A rotating gear (24) is fixedly provided on the rotating base (6) within the connecting shaft (23). A pressure chamber (16) is fixedly provided on the side of the inner cylinder (11) away from the filter screen (14). A transmission airbag (17) is fixedly provided in the pressure chamber (16). A pressure airbag (15) is fixedly connected to the transmission airbag (17) through the pressure chamber (16). The pressure airbag (15) is located inside the inner cylinder (11). Symmetrical sliding grooves (19) are fixedly provided on both sides of the pressure chamber (16). The transmission airbag (17) A telescopic airbag (20) is fixedly connected through the sliding groove (19). A support column (27) is fixedly provided at the top of the telescopic airbag (20). A spring groove (21) is fixedly provided at the corresponding position of the sliding groove (19). A spring column (29) is inserted through the spring groove (21). A compression spring (30) is fixedly provided on the spring column (29). A sliding column (28) is fixedly provided on the spring column (29). The sliding column (28) is inserted into the sliding groove (19) and is slidably connected to the support column (27). A propulsion cylinder (7) is fixedly provided on one side of the rotating base (6) of the box (1). A cylinder switch (8) is fixedly provided on one side of the propulsion cylinder (7). A power switch (31) is fixedly provided at the position opposite to the spring column (29) of the cylinder switch (8). The output shaft of the propulsion cylinder (7) is fixedly connected to a telescopic shaft (32). The rotating base (6) is provided with a through hole (35) corresponding to the telescopic shaft (32). The telescopic shaft (32) passes through the through hole (35) and is positioned opposite to the rotating gear (24). The rotating gear (24) and the telescopic shaft (32) are both fixedly provided with meshing teeth (34) that mesh with each other. The rotating base (6) is located below the telescopic shaft (32) and is provided with an auxiliary roller (33) through a rotating shaft. The auxiliary roller (33) is rolledly connected to the lower part of the telescopic shaft (32). The connecting shaft (23) passes through the rotating base (6) and is fixedly connected to a stabilizing disk (10).

2. An automatic cleaning right angle mud box for a ship according to claim 1, characterized in that, The inner cylinder (11) is fixedly connected to a handle shaft (22) on the side away from the connecting shaft (23) by a connecting bolt (12), and a spare handle (9) is fixedly connected to the handle shaft (22).

3. An automatic cleaning right angle mud box for a ship according to claim 1, characterized in that, The scraper (25) has an inclined surface (26) on one side near the filter screen (14), and a brush is fixed on the side of the scraper (25) opposite to the filter screen (14). The length of the annular groove (18) is half a circle around the inner cylinder (11).

4. A marine automatic cleaning right-angle mud box according to claim 1, characterized in that, The shape of the inlet / outlet opening (13) matches the pipe shape of the water inlet pipe (2) and the sewage pipe (4), and when the position of the inlet / outlet opening (13) is opposite to the water inlet pipe (2) or the sewage pipe (4), the opening of the inlet / outlet opening (13) is sealed to it.

5. An automatic cleaning right angle mud box for a ship according to claim 1, characterized in that, The power switch (31) is a push-button switch. The length of the spring column (29) is such that when it is fully pushed out by the support column (27), the spring column (29) will connect the power switch (31) to power.

6. An automatic cleaning right angle mud box for a ship according to claim 1, characterized in that, The inlet pipe (2), outlet pipe (3) and sewage pipe (4) are all fixedly equipped with connecting flanges (5). The inlet pipe (2) is detachably connected to a water suction pipe through the connecting flange (5). The outlet pipe (3) is detachably connected to a drainage pipe through the connecting flange (5). The sewage pipe (4) is detachably connected to a mud and sludge accumulation bin through the connecting flange (5).

Citation Information

Patent Citations

  • Ballast water filtration apparatus

    CN108619770A

  • A marine dry bilge water collection system

    CN108974252A