A marine ventilation duct end filter assembly

Abstract

This utility model discloses a terminal filter assembly for a ship ventilation duct, relating to the field of ship ventilation equipment. It includes a ventilation duct with a connecting box fixedly connected to its upper surface. A support housing is located inside the ventilation duct, and a filter element is fixedly installed on the upper surface of the support housing. Two slotted inserts are fixedly connected to the outer surface of the support housing. This utility model uses a pull rod to drive a transmission plate to compress a spring, causing a limiting rod to disengage from the locking groove of the slotted insert, allowing the support housing to be pulled out along a guide rail. Disassembly can be completed by a single person in a short time. A sliding groove and guide rail form a precise guide. During installation, the support housing is pushed in along the guide rail until the slotted insert is embedded in the U-shaped groove. The spring returns to its original position, automatically locking the limiting rod. This achieves quick disassembly and installation, improving maintenance efficiency, preventing filter damage during maintenance, ensuring continuous and efficient operation of the filter assembly, and significantly reducing maintenance time and labor costs.

Description

Technical Field

[0001] This utility model relates to the field of marine ventilation equipment, specifically a terminal filter assembly for marine ventilation ducts. Background Technology

[0002] Ship ventilation is the process of ventilating and exchanging air in ship cabins using mechanical means or relying on natural air circulation. During ship navigation, the ventilation system is crucial for maintaining a suitable air environment in the cabins. It must not only ensure a continuous supply of fresh air, but also promptly remove odors, moisture, and harmful gases from the cabins to protect the health of crew and passengers, while also protecting ship equipment from the effects of poor air quality. As the last barrier for air entering the cabins, the performance of the filtration components at the end of the ventilation ducts directly determines the quality of the air entering the cabins.

[0003] During ship operation, filter components require regular maintenance to ensure their continuous and efficient operation. However, the existing filter components have unreasonable structural design, and the disassembly and installation process is cumbersome, often requiring professional tools and a lot of manpower, which consumes a lot of time and further increases the difficulty of maintenance. Some filter components are prone to filter damage when cleaning or replacing the filter screen, resulting in a decline in subsequent filtration performance. Utility Model Content

[0004] The purpose of this utility model is to provide a terminal filter assembly for ship ventilation ducts to solve the problems mentioned in the background art and overcome its technical defects.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a terminal filter assembly for a ship ventilation duct, including a ventilation duct, a connecting box fixedly connected to the upper surface of the ventilation duct, a support shell seat provided inside the ventilation duct, a filter element fixedly installed on the upper surface of the support shell seat, two slotted inserts fixedly connected to the outer surface of the support shell seat, a support slide column fixedly connected to the inner wall of the connecting box, two transmission plates slidably connected to the outer surface of the support slide column, a limit rod fixedly connected to the outer surface of each transmission plate, a holding rod fixedly connected to the outer surface of each transmission plate, a U-shaped groove adapted to the slotted inserts fixedly connected to the inner wall of the connecting box, an opening adapted to the slotted inserts on the outer surface of the connecting box, a guide rod fixedly connected to the inner wall of the connecting box, the guide rod slidably connected to the two transmission plates, and a spring fixedly connected to the outer surface of each transmission plate.

[0006] As a further embodiment of this utility model: a neutral plate is fixedly connected to the inner wall of the connecting box, the interior of the neutral plate is fixedly connected to the outer surface of the supporting slide column, and the end of each spring away from the transmission plate is fixedly connected to the outer surface of the neutral plate.

[0007] As a further improvement of this utility model: the outer surface of the connecting box has two sliding openings, each of which is slidably connected to the holding rod.

[0008] As a further improvement of this utility model: a tie rod is fixedly connected to the outer surface of the support housing, and a ventilation groove is provided on one side of the support housing.

[0009] As a further embodiment of this utility model: the filter element includes a primary filter layer, a medium-efficiency filter layer and a high-efficiency filter layer fixedly installed on the upper surface of the support housing, and a top stop rod is fixedly connected to the outer surface of the support housing, and the top stop rod is located above the filter element.

[0010] As a further improvement of this utility model: the bottom surface of the support housing has two sliding grooves, and the interior of the ventilation duct is fixedly connected to a guide rail that matches the sliding grooves.

[0011] As a further improvement of this utility model: a connecting flange frame is fixedly connected to the left end of the ventilation duct, and sealing rings are fixedly connected to the outer surface of the connecting flange frame and the inner wall of the support housing.

[0012] As a further improvement of this utility model, an air collecting hood is fixedly connected to the inner wall of the ventilation duct.

[0013] Compared with the prior art, the beneficial effects of this utility model include:

[0014] By pulling the transmission plate to compress the spring through the lever, the limit rod disengages from the locking groove of the slotted insert, allowing the support housing to be pulled out along the guide rail. This allows for disassembly by a single person in a short time, improving efficiency compared to the traditional bolt method. The slide groove and guide rail form a precise guide, and during installation, the support housing is pushed in along the guide rail until the slotted insert is embedded in the U-shaped groove. The spring returns to its original position, pushing the limit rod to lock automatically, enabling quick disassembly and assembly, improving maintenance efficiency, preventing filter damage during maintenance, ensuring continuous and efficient operation of the filter components, and significantly reducing maintenance time and labor costs. It can also be operated efficiently in the confined space of a ship. The filter elements allow air to pass through the primary, medium, and high-efficiency filter layers in sequence. Impurities of different particle sizes are gradually intercepted and filtered at each layer, resulting in high-cleanliness air and ensuring that the air entering the cabin reaches a high level of cleanliness. Attached Figure Description

[0015] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0016] Figure 1The schematic diagram shows an overall front view of the structure according to one embodiment of the present invention;

[0017] Figure 2 A schematic cross-sectional view is shown according to one embodiment of the present invention;

[0018] Figure 3 The diagram illustrates the separation of the filter element and the ventilation duct according to one embodiment of the present invention.

[0019] Figure 4 The schematic diagram shows a top sectional view of a connecting box according to one embodiment of the present invention;

[0020] The following are the labeling elements in the diagram: 1. Ventilation duct; 2. Connecting box; 3. Connecting flange frame; 4. Sealing ring; 5. Support housing; 6. Insert plate with opening; 7. Filter element; 701. Primary filter layer; 702. Medium-efficiency filter layer; 703. High-efficiency filter layer; 8. Guide rail; 9. Slide groove; 10. Top stop bar; 11. Air collector hood; 12. Tie rod; 13. Ventilation slot; 14. Support slide column; 15. Central plate; 16. Spring; 17. Transmission plate; 18. Limiting rod; 19. Holding rod; 20. U-shaped groove; 21. Through port; 22. Guide rod; 23. Slide port. Detailed Implementation

[0021] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0022] According to one embodiment of the present invention, in conjunction with the appendix Figures 1-4 As shown.

[0023] A terminal filter assembly for a ship's ventilation duct includes a ventilation duct 1, a connecting box 2 fixedly connected to the upper surface of the ventilation duct 1, a support housing 5 disposed inside the ventilation duct 1, a filter element 7 fixedly installed on the upper surface of the support housing 5, two slotted inserts 6 fixedly connected to the outer surface of the support housing 5, a support slide column 14 fixedly connected to the inner wall of the connecting box 2, two transmission plates 17 slidably connected to the outer surface of the support slide column 14, a limit rod 18 fixedly connected to the outer surface of each transmission plate 17, and a holding rod 19 fixedly connected to the outer surface of each transmission plate 17, the inner wall of the connecting box 2 being adapted to the slotted inserts 6. The U-shaped groove 20 has an opening 21 on the outer surface of the connecting box 2 that matches the slotted plate 6. A guide rod 22 is fixedly connected to the inner wall of the connecting box 2. The guide rod 22 is slidably connected to two transmission plates 17. A spring 16 is fixedly connected to the outer surface of each transmission plate 17, which constitutes the core structure for quick assembly and disassembly of the filter assembly. The slotted plate 6 matches the U-shaped groove 20, and quick locking and unlocking are achieved through the transmission plate 17, the limiting rod 18 and the spring 16. The support shell 5 and the filter 7 can be disassembled without professional tools, which greatly improves maintenance efficiency. The guide rod 22 ensures the stable movement of the transmission plate 17, making the assembly and disassembly process smoother.

[0024] In this embodiment, a neutral plate 15 is fixedly connected to the inner wall of the connecting box 2. The interior of the neutral plate 15 is fixedly connected to the outer surface of the supporting slide column 14. The end of each spring 16 away from the transmission plate 17 is fixedly connected to the outer surface of the neutral plate 15. When installing the support housing 5, the slotted insert 6 pushes the limiting rod 18 to compress the spring 16 by the transmission plate 17. When the slotted insert 6 is fully inserted into the loop groove 20, the spring 16 uses the restoring force generated by its connection with the neutral plate 15 to push the transmission plate 17 to make the limiting rod 18 engage with the slot of the slotted insert 6, achieving a firm lock. It is not easy to loosen even in the vibration environment of ship navigation. The neutral plate 15 fixes the supporting slide column 14, providing a stable connection point for the spring 16, so that the spring 16 can stably support the transmission plate 14. 7. Apply a reset force to ensure that the limit rod 18 always maintains the locking effect on the slotted plate 6. Two sliding holes 23 are opened on the outer surface of the connecting box 2. Each sliding hole 23 is slidably connected to the pull rod 19. The sliding hole 23 provides a sliding track for the pull rod 19, which clarifies the direction and range of movement of the pull rod 19, so that the operator can pull the pull rod 19 more accurately and conveniently. A pull rod 12 is fixedly connected to the outer surface of the support housing 5. A ventilation groove 13 is opened on one side of the support housing 5. The pull rod 12 provides a force point for disassembling the support housing 5, which makes it convenient for the operator to pull the support housing 5 out of the ventilation duct 1. The ventilation groove 13 helps to balance the air pressure inside and outside the support housing 5, reduce the resistance caused by the air pressure difference, and make the disassembly process easier and less strenuous.

[0025] In this embodiment, the filter element 7 includes a primary filter layer 701, a secondary filter layer 702, and a high-efficiency filter layer 703 fixedly installed on the upper surface of the support housing 5. A top stop rod 10 is fixedly connected to the outer surface of the support housing 5, and the top stop rod 10 is located above the filter element 7. The primary filter layer 701, the secondary filter layer 702, and the high-efficiency filter layer 703 form a multi-stage filtration system, which can effectively intercept impurities of different particle sizes and improve the filtration effect. The top stop rod 10 applies a certain pressure to the filter element 7 to fix the position of the filter screen and prevent the filter from shifting. The filter screen shifts under the impact of airflow, and during disassembly, direct pulling of the screen is avoided, protecting it from damage. The pre-filter layer 701, located at the front, uses metal wire mesh or coarse-pore foam plastic to intercept larger particles of impurities in the air, such as dust and debris, effectively protecting subsequent filter layers. The medium-efficiency filter layer 702 uses glass fiber or synthetic fiber filter media to filter medium-sized particles, further improving filtration accuracy. The high-efficiency filter layer 703 uses ultra-fine glass fiber filter paper or PTFE membrane filter. The material has extremely high filtration efficiency for pollutants such as fine particles, bacteria, and viruses, ensuring that the air entering the cabin reaches a high level of cleanliness. Two grooves 9 are opened on the bottom surface of the support housing 5. The interior of the ventilation duct 1 is fixedly connected to a guide rail 8 that matches the grooves 9. The grooves 9 and guide rails 8 provide precise guidance for the installation and disassembly of the support housing 5, ensuring that the support housing 5 can accurately dock with the connecting box 2, while also enhancing the stability of the support housing 5 after installation. A connecting flange frame 3 is fixedly connected to the left end of the ventilation duct 1. Sealing rings 4 are fixedly connected to both the outer surface of the connecting flange frame 3 and the inner wall of the support housing 5. The sealing rings 4 on the connecting flange frame 3 and the support housing 5 form a double sealing structure, effectively preventing air leakage in the ventilation duct 1 and ensuring the sealing performance and operating efficiency of the ventilation system. An air collecting hood 11 is fixedly connected to the inner wall of the ventilation duct 1. The air collecting hood 11 can guide and evenly distribute the airflow entering the ventilation duct 1, allowing the airflow to pass through the filter element 7 more smoothly, avoiding excessive impact on the filter screen due to excessively high local airflow speed, and extending the service life of the filter screen.

[0026] Working principle: During use, when the ventilation duct 1 is connected to other components via the connecting flange frame 3, the sealing ring 4 is deformed under pressure, filling the connection gap. This allows the airflow to pass through the primary filter layer 701 at a relatively uniform speed and pressure, filtering larger particles, the medium-efficiency filter layer 702, filtering medium-sized particles, and the high-efficiency filter layer 703, filtering tiny particles, ensuring clean air entering the cabin. When ship maintenance personnel find that the filter components need cleaning, they can directly pull the holding rod 19, causing the transmission plate 17 to slide on the support slide column 14 and guide rod 22, thereby generating pressure on the spring 16. This compresses the spring 16, causing the limit rod 18 to disengage from the locking position of the slotted insert 6. Then, the support housing 5 can be easily removed from the opening 21 and the U-shaped groove 20 of the connecting box 2. The entire disassembly process only takes a few minutes, which is much more efficient than the traditional method. Then, the support housing 5 can be pulled out of the ventilation duct 1 to maintain, clean, or replace the filter element 7. After maintenance, the filter element 7 and the support housing 5 can be reinstalled into the ventilation duct 1 for filtration.

[0027] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A terminal filter assembly for a ship's ventilation duct, characterized in that, The system includes a ventilation duct (1), a connecting box (2) fixedly connected to the upper surface of the ventilation duct (1), a support housing (5) provided inside the ventilation duct (1), a filter element (7) fixedly installed on the upper surface of the support housing (5), two slotted inserts (6) fixedly connected to the outer surface of the support housing (5), a support slide column (14) fixedly connected to the inner wall of the connecting box (2), and two transmission plates (17) slidably connected to the outer surface of the support slide column (14). The outer surface of each transmission plate (17) is fixedly connected to... A limit rod (18) is connected to each of the transmission plates (17), and a pull rod (19) is fixedly connected to the outer surface of each of the transmission plates (17). A U-shaped groove (20) adapted to the slotted plate (6) is fixedly connected to the inner wall of the connecting box (2). A through-hole (21) adapted to the slotted plate (6) is opened on the outer surface of the connecting box (2). A guide rod (22) is fixedly connected to the inner wall of the connecting box (2). The guide rod (22) is slidably connected to the two transmission plates (17). A spring (16) is fixedly connected to the outer surface of each of the transmission plates (17).

2. The terminal filter assembly for a ship ventilation duct according to claim 1, characterized in that, The inner wall of the connecting box (2) is fixedly connected to a neutral plate (15), the interior of the neutral plate (15) is fixedly connected to the outer surface of the supporting slide column (14), and the end of each spring (16) away from the transmission plate (17) is fixedly connected to the outer surface of the neutral plate (15).

3. The terminal filter assembly for a ship ventilation duct according to claim 2, characterized in that, The outer surface of the connecting box (2) has two sliding openings (23), each of which is slidably connected to the holding rod (19).

4. A terminal filter assembly for a ship ventilation duct according to claim 3, characterized in that, A pull rod (12) is fixedly connected to the outer surface of the support shell (5), and a ventilation groove (13) is provided on one side of the support shell (5).

5. A terminal filter assembly for a ship ventilation duct according to claim 4, characterized in that, The filter element (7) includes a primary filter layer (701), a medium filter layer (702) and a high-efficiency filter layer (703) fixedly installed on the upper surface of the support housing (5). A top stop rod (10) is fixedly connected to the outer surface of the support housing (5), and the top stop rod (10) is located above the filter element (7).

6. A terminal filter assembly for a ship ventilation duct according to claim 1, characterized in that, The bottom surface of the support housing (5) has two grooves (9), and the interior of the ventilation duct (1) is fixedly connected to the guide rail (8) that matches the groove (9).

7. A terminal filter assembly for a ship ventilation duct according to claim 6, characterized in that, The left end of the ventilation duct (1) is fixedly connected to a connecting flange frame (3), and the outer surface of the connecting flange frame (3) and the inner wall of the support housing (5) are both fixedly connected to sealing rings (4).

8. A terminal filter assembly for a ship ventilation duct according to claim 7, characterized in that, The ventilation duct (1) is fixedly connected to an air collecting hood (11).

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