Marine jet ventilation device
Through the synergy between cooling components and cleaning components, the problem that existing devices cannot effectively deal with moisture and dust is solved, and efficient air purification and stable operation of the equipment is achieved.
Patent Information
- Application Number
- CN202510553128.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-29
- Publication Date
- 2025-07-04
AI Technical Summary
The existing marine jet ventilation devices cannot effectively deal with moisture and dust in the air, resulting in the equipment being easily corroded by humid air. The dust endangers the health of the crew and is difficult to meet the high-standard purification needs of the ship's internal environment.
The cooling component is used to drive the cooling ring to cool the air, so that moisture and dust condense, and initial filtering is carried out in conjunction with the filter ring, and the filter structure is automatically cleaned through the cleaning component to ensure smooth ventilation.
It realizes effective dust removal of air pollution during marine jet ventilation, ensures clean air entering the ventilation system, and ensures long-term and stable operation of the equipment.
Smart Images
Figure CN120246218A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of ship ventilation, and particularly to a marine jet ventilation device. Background Art
[0002] A marine jet ventilation device is specifically designed for the ship environment and is used to achieve air circulation and purification inside the ship. As described in the text you provided, the device drives a fan to rotate to push air flow, thereby achieving the ventilation purpose. The cooling component can cool the air, causing moisture and dust to condense. Structures such as the filter ring and filter plate filter layer by layer to remove impurities, achieving dust removal for air pollution and ensuring the cleanliness of the air entering the ship interior. The cleaning component can automatically clean each component to prevent blockage, maintain smooth ventilation and long-term stable operation of the equipment, and plays an important role in various cabins of the ship, such as living cabins, engine rooms, etc., creating a healthy and comfortable environment for the crew and belonging to the category of manufacturing special equipment for air pollution environmental protection. However, some existing marine jet ventilation devices, when in use, usually simply introduce external air into the cabin by relying on the fan and then discharge the internal air. In the field of manufacturing special equipment for air pollution environmental protection, such a design is obviously not perfect. It does not take into account the pollution of engine exhaust gas, cargo volatile gas, and human turbid gas in the cabin during ship navigation. Moreover, it cannot effectively handle the moisture and dust in the air, resulting in the equipment being easily corroded by humid air, the dust endangering the health of the crew and damaging precision equipment, and it is difficult to meet the high-standard purification requirements of the ship interior environment.
[0003] Therefore, a marine jet ventilation device is proposed to solve the above problems. Summary of the Invention
[0004] To make up for the above deficiencies, the present invention provides a marine jet ventilation device, aiming to improve the problem that some devices in the prior art cannot effectively handle the moisture and dust in the air, resulting in the equipment being easily corroded by humid air, the dust endangering the health of the crew and damaging precision equipment, and it is difficult to meet the high-standard purification requirements of the ship interior environment.
[0005] To achieve the above object, the present invention adopts the following technical solutions: A marine jet ventilation device, including a fixed ring located in the manufacturing of special equipment for air pollution environmental protection. The top of the fixed ring is connected with a driving component. The bottom end of the driving component is fixedly connected with a connecting column. A fan is fixedly connected to the outside of the connecting column. The left and right ends of the fixed ring are respectively fixedly connected with connecting rings. The top of the connecting ring is fixedly connected with a cooling component. Two filter rings are fixedly connected inside the cooling component. A connecting rod is fixedly connected inside the connecting column. Cleaning components are fixedly connected to both ends of the connecting rod. Two fixing plates are fixedly connected inside the fixed ring. A filter plate for dust removal of air pollution is fixedly connected inside the connecting ring. A plurality of filter holes are formed inside the filter plate. Two sliding plates are slidably connected inside the filter plate. A reset component is fixedly connected to the adjacent ends of the two sliding plates. An eccentric wheel is fixedly connected to the outside of the connecting rod; As a further description of the above technical solution: The cooling component includes two coolers. The bottom end of the cooler is fixedly connected with a cooling ring. The outside of the cooling ring is fixedly connected inside the connecting ring. The inside of the cooling ring is fixedly connected to the outside of the filter ring to complete the dust removal of the pollution in the air; As a further description of the above technical solution: The cleaning component includes two connecting plates. The adjacent sides of the two connecting plates are respectively fixedly connected to the left and right ends of the connecting rod. Two scraping plates are fixedly connected to the adjacent ends of the two connecting plates; As a further description of the above technical solution: A plurality of fixing rods are fixedly connected to the outside of the connecting rod. A limit box is fixedly connected to the outside of the fixing rod. A limit groove is formed inside the limit box. A sliding block is slidably connected inside the limit groove. Scraping plates are fixedly connected to the far ends of the plurality of sliding blocks. A plurality of telescopic columns are fixedly connected inside the limit box. A second spring is sleeved on the outside of the telescopic column to complete the dust removal of the pollution in the air; As a further description of the above technical solution: The outside of the scraping plate is in contact with the inside of the connecting ring, and the outside of the scraping plate is in contact with the outside of the connecting ring; As a further description of the above technical solution: The reset component includes two telescopic rods. Both ends of the plurality of telescopic rods are fixedly connected to the adjacent ends of the plurality of sliding plates. A first spring is sleeved on the outside of the telescopic rod. The outside of the eccentric wheel is in contact with the inside of the filter plate. Both ends of the plurality of first springs are fixedly connected to the adjacent ends of the plurality of sliding plates. The inside of the filter ring is fixedly connected to the outside of the filter plate. The connecting rod is rotatably connected inside the filter plate; As a further description of the above technical solution: The driving component includes a motor, a support frame is fixedly connected to the outside of the motor, a rotating rod is fixedly connected to the driving end of the motor, and the bottom end of the rotating rod is fixedly connected to the top end of the connecting column; As a further description of the above technical solution: The outside of the scraping plate is in contact with the inside of the filtering ring, and the outside of the scraping plate is slidably connected to the inside of the limiting box; As a further description of the above technical solution: The outside of the rotating rod is rotatably connected to the inside of the fixed ring, and the outside of the two fixing plates is fixedly connected to the inside of the connecting column; As a further description of the above technical solution: One ends of a plurality of second springs are respectively fixedly connected to the inside of a plurality of limiting boxes, and the other ends of the plurality of second springs are respectively fixedly connected to the adjacent ends of a plurality of sliding blocks.
[0006] The present invention has the following beneficial effects: 1. In the present invention, the cooler drives the cooling ring to cool the inside of the connecting ring, so that the moisture and dust in the air condense, and cooperate with the filtering ring for preliminary filtration, achieving the beneficial effect of removing dust from air pollution during marine jet ventilation. As part of the manufacture of special equipment for air pollution environmental protection, it ensures that the air entering the ventilation system is relatively clean; 2. In the present invention, the connecting rod drives the scraping plate to clean the connecting ring, the fixed rod drives the limiting box to make the scraping plate clean the filtering ring, and the eccentric wheel and the reset component drive the sliding plate to clean the filtering holes, achieving the beneficial effect of automatically cleaning each filtering structure inside the ventilation device, ensuring smooth ventilation, and being an effective design to ensure the long-term stable operation of the equipment in the manufacture of special equipment for air pollution environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS
[0007] Figure 1 is a three-dimensional schematic diagram of a marine jet ventilation device proposed by the present invention; Figure 2 is a structural schematic diagram of the scraping plate of a marine jet ventilation device proposed by the present invention; Figure 3 is a structural sectional view of the connecting ring of a marine jet ventilation device proposed by the present invention; Figure 4 is a structural schematic diagram of the rotating rod of a marine jet ventilation device proposed by the present invention; Figure 5 is a structural sectional view of the filter plate of a marine jet ventilation device proposed by the present invention; Figure 6Schematic structural diagram of a sliding plate of a marine jet ventilation device proposed by the present invention; Figure 7 Schematic structural diagram of a fixed rod of a marine jet ventilation device proposed by the present invention; Figure 8 Sectional structural view of a limit box of a marine jet ventilation device proposed by the present invention.
[0008] Legend: 1. Fixed ring; 2. Motor; 3. Support frame; 4. Fan; 5. Connecting ring; 6. Cooler; 7. Cooling ring; 8. Filter ring; 9. Filter hole; 10. Fixed plate; 11. Connecting rod; 12. Connecting plate; 13. Scraping plate; 14. Filter plate; 15. Sliding plate; 16. Expansion rod; 17. Spring I; 18. Eccentric wheel; 19. Fixed rod; 20. Limit box; 21. Limit groove; 22. Sliding block; 23. Scraper; 24. Expansion column; 25. Spring II; 26. Rotating rod; 27. Connecting column. Detailed implementation manners
[0009] 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 of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0010] Refer to Figures 1 to 6, an embodiment provided by the present invention: a marine jet ventilation device, as an important achievement in the manufacture of special equipment for air pollution environmental protection, plays a key role in dust removal of air pollution in the marine environment. The device includes a fixing ring 1, which is used as the basic support structure of the whole device, provides an installation position for other components, and is an indispensable basic structure in the manufacture of special equipment for air pollution environmental protection. The top of the fixing ring 1 is connected with a motor 2. After the motor 2 is started, it provides a power source for the whole ventilation device, drives the device to operate to achieve the function of dust removal of air pollution. The outside of the motor 2 is fixedly connected with a support frame 3, which stably supports the motor 2, ensures the stability of the motor 2 during operation, and guarantees the stability of power output in the manufacture of special equipment for air pollution environmental protection. The output end of the motor 2 is fixedly connected with a rotating rod 26, which transmits the power of the motor 2 and drives the subsequent components to operate to perform operations related to dust removal of air pollution. The bottom end of the rotating rod 26 is fixedly connected with a connecting column 27, which is used to connect the rotating rod 26 and the fan 4 and is a key link in the power transmission chain. The outside of the connecting column 27 is fixedly connected with a fan 4. The fan 4 promotes air flow through rotation, realizes the ventilation function, provides air circulation power for dust removal of air pollution, and is an important execution component for air purification in the manufacture of special equipment for air pollution environmental protection. The left and right ends of the fixing ring 1 are respectively fixedly connected with connecting rings 5. On the one hand, the connecting rings 5 are used to connect the fixing ring 1 with other components, and on the other hand, they serve as air circulation channels, which are the only way for air to enter the purification link in the dust removal process of air pollution. The top of the connecting ring 5 is fixedly connected with a cooling component. When the cooler 6 in the cooling component works, it cools the inside of the connecting ring 5 through the cooling ring 7 at the bottom. The cooler 6 cools the air inside the connecting ring 5, causing moisture and dust in the air to condense. As the cooling core in the manufacture of special equipment for air pollution environmental protection, it helps with dust removal of air pollution. The cooling ring 7 assists the cooler 6 in cooling operations and preliminarily cools the air inside the connecting ring 5, causing moisture and dust in the air to condense together, ensuring the device operates at an appropriate temperature, and at the same time creating favorable conditions for the subsequent dust removal process of air pollution. At the same time, the filter ring 8 inside the cooling ring 7 assists in maintaining the preliminary filtration of air and structural stability. The filter ring 8 preliminarily filters the cooled air, intercepts some dust and other impurities, and is a key component for achieving preliminary purification of dust removal of air pollution in the manufacture of special equipment for air pollution environmental protection, and at the same time provides a certain structural support for the inside of the device. Inside the connecting column 27, there is a fixedly connected connecting rod 11. As a connecting and driving component, the connecting rod 11 connects multiple cleaning components and transmits power, playing a role in connecting each purification link in the entire collaborative working system of air pollution dust removal. At both ends of the connecting rod 11, there are fixedly connected cleaning components. The cleaning components include two connecting plates 12, which are used to connect the connecting rod 11 and the scraping plate 13 and are connecting components for realizing the cleaning function. On the adjacent sides of the two connecting plates 12, they are respectively fixedly connected to the left and right ends of the connecting rod 11. At the adjacent ends of the two connecting plates 12, there are two scraping plates 13 fixedly connected. The outer part of the scraping plate 13 is in contact with the inner and outer walls of the connecting ring 5. During rotation, it continuously scrapes the inner and outer walls of the connecting ring 5, cleans the attached sundries, keeps the inside of the connecting ring 5 clean, and reduces the interference of impurities in the connecting ring 5 on the air pollution dust removal process. Refer to Figure 5 and Figure 6 There is also a fixedly connected eccentric wheel 18 outside the connecting rod 11. The eccentric wheel 18 rotates with the connecting rod 11 and squeezes the filter plate 14 during rotation to push the cleaning operation to maintain the smoothness of the air pollution dust removal process. Inside the connecting ring 5, there is a fixedly connected filter plate 14. The filter plate 14 further filters the air and is a key filtering component for deeply purifying the air and realizing air pollution dust removal in the manufacturing of special equipment for air pollution environmental protection. Inside the filter plate 14, there are multiple filter holes 9. The filter holes 9 are the key parts for air filtration, intercepting impurities in the air and being the direct action points for air pollution dust removal. Inside the filter plate 14, there are two sliding plates 15 slidably connected. The sliding plates 15 move under the action of the eccentric wheel 18 to clean the filter holes 9, ensure the smoothness of the filter holes 9, and maintain the air pollution dust removal effect. At the adjacent ends of the two sliding plates 15, there is a reset component. The reset component includes two telescopic rods 16. The telescopic rods 16 expand and contract when the sliding plates 15 move to cooperate with the cleaning operation. Both ends of the multiple telescopic rods 16 are fixedly connected to the adjacent ends of the multiple sliding plates 15. The outer part of the telescopic rod 16 is sleeved with a first spring 17, and the first spring 17 provides a reset elastic force. Both ends of the multiple first springs 17 are fixedly connected to the adjacent ends of the multiple sliding plates 15. When the squeezing action of the eccentric wheel 18 disappears, the first spring 17 pushes the sliding plates 15 to reset. Repeating this way, the filter holes 9 inside the filter plate 14 are cleaned, preventing the filter holes 9 from being blocked, ensuring the smooth progress of ventilation, and ensuring the continuous and stable development of the air pollution dust removal work. The outer part of the eccentric wheel 18 is in contact with the inside of the filter plate 14 and squeezes the filter plate 14 during rotation. Refer to Figure 7 and Figure 8, there are two fixed plates 10 fixedly connected inside the fixed ring 1. The two fixed plates 10 are used to ensure the stability of the rotation of the connecting column 27 and guarantee the smooth operation of each component during the manufacturing of special equipment for air pollution environmental protection. The outer part of the rotating rod 26 is rotatably connected inside the fixed ring 1, realizing the rotational connection of the rotating rod 26 inside the fixed ring 1, which is the basis for the smooth transmission of power. The outer parts of the two fixed plates 10 are fixedly connected inside the connecting column 27, further strengthening the stability of the connecting column 27 during rotation and providing guarantee for the stable execution of air pollution dust removal work. The inside of the filter ring 8 is fixedly connected to the outside of the filter plate 14, realizing the connection between the filter ring 8 and the filter plate 14, assisting in filtration, and jointly contributing to air pollution dust removal. The connecting rod 11 is rotatably connected inside the filter plate 14, enabling the connecting rod 11 to rotate inside the filter plate 14, driving related components to work, and jointly promoting the air pollution dust removal process. Through the collaborative work of the above components, the device realizes the efficient and stable marine jet ventilation function, ensures the smoothness and cleanliness of the ventilation system, effectively fulfills the air pollution dust removal responsibility, and demonstrates the excellent achievements in the manufacturing of special equipment for air pollution environmental protection; Refer to Figure 3 and Figure 4 , there are multiple fixed rods 19 fixedly connected to the outside of the connecting rod 11. The fixed rods 19 are used to connect the connecting rod 11 and the limit box 20, ensuring the collaborative work of each component to achieve air pollution dust removal. The outside of the fixed rod 19 is fixedly connected to the limit box 20. The limit box 20 is internally provided with a limit groove 21. The limit groove 21 provides a sliding track for the sliding block 22, ensuring that the cleaning component works along a predetermined path and improving the air pollution dust removal efficiency. The inside of the limit groove 21 is slidably connected to the sliding block 22. The sliding block 22 can slide inside the limit groove 21, driving the scraper 23 to perform cleaning work and assisting in the air pollution dust removal operation. The far ends of multiple sliding blocks 22 are all fixedly connected with a scraper 23. During the movement of the limit box 20, the scraper 23 slides inside the filter ring 8, cleaning the impurities on the filter ring 8, ensuring the filtering effect and removing the condensed water droplets and dust. As a cleaning component in the manufacturing of special equipment for air pollution environmental protection, it effectively maintains the purification performance of the filter ring 8. There are multiple telescopic columns 24 fixedly connected inside the limit box 20. The telescopic columns 24 play a buffering and supporting role, assisting the second spring 25 to keep the scraper 23 close to the filter ring 8 and guaranteeing the stability of the cleaning work. The outside of the telescopic column 24 is sleeved with the second spring 25. The second spring 25 provides elastic force, making the scraper 23 always close to the inside of the filter ring 8, ensuring the cleaning effect and assisting in air pollution dust removal.
[0011] Working principle: The working process of the marine jet ventilation device is as follows: First, for the manufacture of special equipment for air pollution environmental protection, the motor 2 is started and stabilized by the support frame 3. The output end of the motor drives the rotating rod 26 to rotate. The connecting column 27 at the bottom end of the rotating rod 26 rotates accordingly. The fan 4 outside the connecting column 27 starts to work, and through rotation, it promotes the air flow to achieve the ventilation function. During the operation of the fan 4, the connecting rings 5 at the left and right ends of the fixed ring 1 play a role, and the cooling components at the top ends of the connecting rings 5 start to operate. When the cooler 6 in the cooling component works, it cools the inside of the connecting ring 5 through the cooling ring 7 at the bottom end, enabling it to remove dust from air pollution, condensing moisture and dust together, ensuring that the device operates at an appropriate temperature. At the same time, the filter ring 8 inside the cooling ring 7 assists in maintaining the initial filtration of air and the structural stability.
[0012] As the connecting column 27 rotates, the connecting rod 11 inside it also rotates. The connecting plates 12 and the scraping plates 13 fixedly connected to both ends of the connecting rod 11 move accordingly. The outside of the scraping plate 13 contacts the inner and outer walls of the connecting ring 5, and continuously scrapes the inner and outer walls of the connecting ring 5 during rotation to clean the attached debris and keep the inside of the connecting ring 5 clean. At the same time, the fixed rod 19 fixedly connected to the outside of the connecting rod 11 drives the limit box 20 to move. The sliding block 22 inside the limit box 20 slides in the limit groove 21. The scraping plate 23 at the far end of the sliding block 22 always clings to the inside of the filter ring 8 under the action of the second spring 25 and the telescopic column 24. As the limit box 20 moves, the scraping plate 23 slides inside the filter ring 8 to clean the impurities on the filter ring 8, ensuring the filtering effect and removing the condensed water droplets and dust, thereby completing the removal of air pollution dust.
[0013] In addition, the eccentric wheel 18 outside the connecting rod 11 rotates with the connecting rod 11. The outside of the eccentric wheel 18 contacts the inside of the filter plate 14 and squeezes the filter plate 14 during rotation, pushing the two sliding plates 15 slidably connected inside the filter plate 14 to move. When the sliding plates 15 move, the telescopic rod 16 and the first spring 17 in the compression reset component are compressed. When the squeezing action of the eccentric wheel 18 disappears, the first spring 17 pushes the sliding plates 15 to reset. Repeating this process, the cleaning of the filter holes 9 inside the filter plate 14 is achieved, preventing the filter holes 9 from being blocked and ensuring the smooth progress of ventilation.
[0014] During the entire workflow, the outside of the rotating rod 26 rotates inside the fixed ring 1, and the two fixing plates 10 are fixedly connected inside the connecting column 27 to ensure the stability of the rotation of the connecting column 27. The inside of the filter ring 8 is fixedly connected to the outside of the filter plate 14, and the connecting rod 11 is rotatably connected inside the filter plate 14. Each component works together to ensure the stable operation of the device. The fan 4 is driven by the motor 2 to ventilate, the cooling component maintains the temperature and condenses the moisture and dust in the air, and the cleaning component and the reset component cooperate to clean the filtering structure. This device realizes the efficient and stable marine jet ventilation function, ensuring the smoothness and cleanliness of the ventilation system.
[0015] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.
Claims
1. A marine jet ventilation device, comprising a fixing ring (1) located on the manufacturing of special equipment for air pollution environmental protection, characterized in that: A driving assembly is connected to the top end of the fixed ring (1). A connecting column (27) is fixedly connected to the bottom end of the driving assembly. A fan (4) is fixedly connected to the outside of the connecting column (27). Connecting rings (5) are respectively fixedly connected to the left and right ends of the fixed ring (1). A cooling assembly is fixedly connected to the top end of the connecting ring (5). Two filter rings (8) are fixedly connected to the inside of the cooling assembly. A connecting rod (11) is fixedly connected to the inside of the connecting column (27). Cleaning assemblies are fixedly connected to both ends of the connecting rod (11). Two fixing plates (10) are fixedly connected to the inside of the fixed ring (1). A filter plate (14) for removing dust from air pollution is fixedly connected to the inside of the connecting ring (5). A plurality of filter holes (9) are formed in the inside of the filter plate (14). Two sliding plates (15) are slidably connected to the inside of the filter plate (14). A reset assembly is fixedly connected to the adjacent ends of the two sliding plates (15). An eccentric wheel (18) is fixedly connected to the outside of the connecting rod (11).
2. The marine jet ventilation device according to claim 1, characterized in that: The cooling assembly includes two coolers (6). A cooling ring (7) is fixedly connected to the bottom end of the cooler (6). The outside of the cooling ring (7) is fixedly connected to the inside of the connecting ring (5). The inside of the cooling ring (7) is fixedly connected to the outside of the filter ring (8) to complete the dust removal of the pollution in the air.
3. The marine jet ventilation device according to claim 1, wherein: The cleaning assembly includes two connecting plates (12). The adjacent sides of the two connecting plates (12) are respectively fixedly connected to the left and right ends of the connecting rod (11). Two scraping plates (13) are fixedly connected to the adjacent ends of the two connecting plates (12).
4. The marine jet ventilation device according to claim 1, wherein: A plurality of fixing rods (19) are fixedly connected to the outside of the connecting rod (11). A limiting box (20) is fixedly connected to the outside of the fixing rod (19). A limiting groove (21) is formed in the inside of the limiting box (20). A sliding block (22) is slidably connected to the inside of the limiting groove (21). Scraping plates (23) are fixedly connected to the remote ends of the plurality of sliding blocks (22). A plurality of telescopic columns (24) are fixedly connected to the inside of the limiting box (20). A second spring (25) is sleeved on the outside of the telescopic column (24) to complete the dust removal of the pollution in the air.
5. The marine jet ventilation device according to claim 3, characterized in that: The outside of the scraping plate (13) is in contact with the inside of the connecting ring (5). The outside of the scraping plate (13) is in contact with the outside of the connecting ring (5).
6. The marine jet ventilation device according to claim 1, characterized in that: The reset assembly includes two telescopic rods (16). Both ends of the plurality of telescopic rods (16) are fixedly connected to the adjacent ends of the plurality of sliding plates (15). A first spring (17) is sleeved on the outside of the telescopic rod (16). The outside of the eccentric wheel (18) is in contact with the inside of the filter plate (14). Both ends of the plurality of first springs (17) are fixedly connected to the adjacent ends of the plurality of sliding plates (15). The inside of the filter ring (8) is fixedly connected to the outside of the filter plate (14). The connecting rod (11) is rotatably connected to the inside of the filter plate (14).
7. The marine jet ventilation device according to claim 1, characterized in that: The driving component includes a motor (2), a support frame (3) is fixedly connected to the outside of the motor (2), a rotating rod (26) is fixedly connected to the driving end of the motor (2), and the bottom end of the rotating rod (26) is fixedly connected to the top end of the connecting column (27).
8. The marine jet ventilation device according to claim 4, characterized in that: The outside of the scraping plate (23) is in contact with the inside of the filtering ring (8), and the outside of the scraping plate (23) is slidably connected to the inside of the limiting box (20).
9. The marine jet ventilation device according to claim 7, characterized in that: The outside of the rotating rod (26) is rotatably connected to the inside of the fixed ring (1), and the outside of the two fixing plates (10) is fixedly connected to the inside of the connecting column (27).
10. A marine jet ventilation device according to claim 4, characterized in that: One ends of a plurality of second springs (25) are respectively fixedly connected to the inside of a plurality of limiting boxes (20), and the other ends of the plurality of second springs (25) are respectively fixedly connected to the adjacent ends of a plurality of sliding blocks (22).