A weather-tight ventilation structure for a ship
By designing a weatherproof ventilation structure, including a weatherproof cylinder, an outer cylinder, and a lifting mechanism, the problems of rainwater ingress and fire control when the ventilation opening is upward-exhausting are solved, achieving effective waterproofing and fireproofing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHU SHIPYARD CO LTD
- Filing Date
- 2025-06-18
- Publication Date
- 2026-06-23
AI Technical Summary
Existing ship ventilation structures cannot meet the requirements of the China Classification Society (CCS). When the ventilation openings are upward, the drainage effect is poor, and it cannot effectively prevent rainwater from entering the ship.
A weatherproof ventilation structure comprising a weatherproof cylinder and an outer cylinder is designed. The weatherproof cover prevents rainwater from entering through a lifting mechanism. The ventilation opening is equipped with an insect screen. Anti-rotation guide plates and anti-rotation clamps ensure that the weatherproof cover can only be raised and lowered and cannot rotate. The weatherproof cover is conical to facilitate rainwater drainage. The ventilation opening can be closed to control fire.
It effectively prevents rainwater from entering the cabin when the vents are expelled upwards, ensuring ventilation, and closes the vents when necessary to prevent the spread of fire.
Smart Images
Figure CN224392934U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of marine technology. Specifically, this utility model relates to a weatherproof and ventilated structure for ships. Background Technology
[0002] According to the specifications for the construction and equipment of ships transporting dangerous liquid chemicals in bulk, the existing ship ventilation standards require downward-facing vents, which is more conducive to drainage and prevents water accumulation from affecting the sealing performance. However, according to the China Classification Society (CCS) specifications for the construction and equipment of ships transporting dangerous liquid chemicals in bulk, ventilation and exhaust ducts in cargo storage areas should exhaust upwards. The current ship ventilation standards, with vents exhausting downwards, do not meet the requirements of the CCS, and the existing upward-exhausting vents have poor drainage efficiency.
[0003] A search revealed a Chinese patent published on May 9, 2025, disclosing a marine ventilation duct end unit and a vessel, publication number CN222845475U. The marine ventilation duct end unit comprises an end body formed into a tubular structure; a connecting portion disposed at the top of the end body, through which the end body is installed in the ventilation duct; and a lamp body disposed inside the end body, with a gap between the lamp body and the inner wall of the end body. This patent solves the ventilation problem, but it does not effectively address the issue of preventing rainwater from entering the vessel. Utility Model Content
[0004] The present invention aims to provide a windproof and rainproof ventilation structure for shipboard hazardous areas with upward-facing vents to prevent rainwater from entering.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A weatherproof ventilation structure for ships includes a weatherproof cylinder and an outer cylinder. One end of the outer cylinder is connected to the weatherproof cylinder, and the other end of the outer cylinder is connected to a support plate. The support plate is connected to a bushing fixing plate. A ventilation opening is provided between the bushing fixing plate and the outer cylinder. A weatherproof cover is provided inside the outer cylinder. The weatherproof cover is located below the bushing fixing plate and is connected to a lifting mechanism.
[0007] The weatherproof cover is conical, and the end face area of the weatherproof cover near the bushing fixing plate is smaller than the end face area of the other end of the weatherproof cover. The lifting mechanism includes a screw and a threaded sleeve. The threaded sleeve is fitted on the screw and the threaded sleeve is fitted on the weatherproof cover. The support plate is connected to the support rod of the bushing fixing plate. The bushing fixing plate has a bushing in the middle. The bushing is fitted on the screw and the other end of the screw is located inside the weatherproof cylinder.
[0008] The weatherproof cylinder is equipped with a screw support frame, and the screw is located inside the screw support frame. Anti-rotation guide plates are respectively provided on both sides of the weatherproof cylinder. One side of the anti-rotation guide plate is connected to the weatherproof cylinder, and the other side of the anti-rotation guide plate is connected to the outer cylinder. The end of the anti-rotation plate is provided with a guide groove that cooperates with the anti-rotation guide plate.
[0009] The bottom of the weatherproof cylinder is provided with a flange, the bottom of the outer cylinder is provided with a water outlet, a stiffening plate is provided between the outer cylinder and the flange, and the bottom end of the outer cylinder is conical.
[0010] The screw support frame has a screw support seat in the middle, and multiple sets of fixing plates are provided on the outer side of the screw support frame.
[0011] The bottom of the weatherproof cover is provided with a packing strip; the weatherproof cover is provided with an indicator rod.
[0012] The ventilation opening is equipped with an insect-proof net.
[0013] One end of the screw extends out of the bushing fixing plate, and a handwheel is provided on the extended end of the screw.
[0014] The outlet, reinforcing plate, and insect-proof net are set in multiple sets.
[0015] The windproof and rainproof cylinder is cylindrical, and the insect-proof net is fan-shaped.
[0016] The technical advantages of this invention are as follows: By installing a weatherproof cover inside the outer cylinder, and connecting the weatherproof cover to a lifting mechanism, the cone-shaped weatherproof cover, which is smaller at the top and larger at the bottom, prevents rainwater from entering the cabin. Rainwater flows out from the outlet on the outer side of the lower end of the outer cylinder. The space between the bushing fixing plate and the outer cylinder is a ventilation opening, and a fan-shaped insect-proof net is installed on the ventilation opening. The net is easy to install and remove, and is convenient for cleaning and inspection, preventing insects or rodents from entering the cabin. Through the guide groove of the anti-rotation guide plate and the anti-rotation clamping plate, the weatherproof cover and the screw can only be raised and lowered but cannot rotate. When the weatherproof cover is raised to the support plate, the ventilation opening is closed, which plays a role in controlling fire. Attached Figure Description
[0017] This manual includes the following figures, which illustrate the following:
[0018] Figure 1 This is a schematic diagram of a weatherproof and ventilated structure for use in ships.
[0019] Figure 2 for Figure 1 Top view.
[0020] Figure 3 for Figure 1 A schematic diagram of the structure of the stop guide plate.
[0021] The markings in the diagram are as follows: 1. Weatherproof cylinder; 2. Outer cylinder; 3. Support plate; 4. Lifting mechanism; 5. Weatherproof cover; 6. Screw; 7. Threaded sleeve; 8. Bushing; 9. Screw support frame; 10. Anti-rotation guide plate; 11. Anti-rotation clamping plate; 12. Packing strip; 13. Flange; 14. Outlet; 15. Rib plate; 16. Indicator rod; 17. Bushing fixing plate; 18. Insect screen; 19. Handwheel; 20. Fixing plate; 21. Screw support seat; 22. Ventilation opening; 23. Guide groove; 24. Support rod. Detailed Implementation
[0022] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of this utility model, and to facilitate its implementation.
[0023] like Figure 1 As shown, a weatherproof ventilation structure for ships includes a weatherproof cylinder 1 and an outer cylinder 2. One end of the outer cylinder 2 is connected to the weatherproof cylinder 1, and the other end of the outer cylinder 2 is connected to a support plate 3. The support plate 3 is connected to a bushing fixing plate 17. A ventilation opening 22 is provided between the bushing fixing plate 17 and the outer cylinder 2. A weatherproof cover 5 is provided inside the outer cylinder 2, located below the bushing fixing plate 17. The weatherproof cover 5 is connected to a lifting mechanism 4. The support plate 3 is a long strip plate. One end of the outer cylinder 2 is connected to the weatherproof cylinder 1, and the other end of the outer cylinder 2 is connected to the support plate 3. The lifting mechanism 4 is used to raise and lower the weatherproof cover 5.
[0024] like Figure 2 As shown, the weatherproof cover 5 is conical. The end face area of the weatherproof cover 5 near the bushing support plate 17 is smaller than the end face area of the other end of the weatherproof cover 5. The lifting mechanism 4 includes a screw 6 and a threaded sleeve 7. The threaded sleeve 7 is fitted on the screw 6 and is located on the weatherproof cover 5. The support plate 3 is connected to the support rod 24. The bushing fixing plate 17 has a bushing 8 in the middle. The bushing 8 is located on the screw 6. The other end of the screw 6 is located inside the weatherproof cylinder 1. The weatherproof cover 5 is conical, with a smaller top and a larger bottom, which facilitates rainwater flow down the conical surface. The threaded sleeve 7 is fitted onto the screw rod 6, and the screw rod 6 and the threaded sleeve 7 are threaded together. The outer wall of the threaded sleeve 7 is fixed to the weatherproof cover 5, so that the threaded sleeve 7 and the weatherproof cover 5 can rise and fall together. When it is necessary to close the vent 22, the weatherproof cover 5 descends to the position of contact with the weatherproof cylinder 1, thereby closing the vent 22. The bushing 8 serves to limit and support the screw rod 6. The screw rod 6 passes through the bushing 8, and the bushing 8 is connected to the bushing support plate 17. The support plate 3 consists of four rectangular plates arranged in a ring, with three support rods 24 in the middle that are connected to the bushing fixing plate 17. The weatherproof cover 5 is raised and lowered by rotating the screw rod 6.
[0025] like Figure 3As shown, a screw support frame 9 is provided inside the weatherproof cylinder 1, and a screw 6 is provided inside the screw support frame 9. Anti-rotation guide plates 10 are provided at both ends of the weatherproof cylinder 1. One end of the anti-rotation guide plate 10 is connected to the weatherproof cylinder 1, and the other end of the anti-rotation guide plate 10 is connected to the outer cylinder 2. The end of the anti-rotation clamping plate 11 is provided with a guide groove 23 that cooperates with the anti-rotation guide plate 10. The weatherproof cylinder 1 is equipped with a screw support frame 9, with a screw support seat 21 in the middle. One end of the screw 6 is placed inside the screw support seat 21. Four fixing plates 20 are provided on the outside of the screw support seat 21, fixing one end of the screw 6 inside the screw support seat 21 to prevent the screw 6 from shaking vertically during rotation. The operator moves the weatherproof cover 5 up and down by rotating the screw 6. Anti-rotation guide plates 10 are provided on both sides of the weatherproof cylinder 1, and anti-rotation clamping plates 11 are provided on both sides of the weatherproof cover 5. The anti-rotation clamping plates 11 have guide grooves 23 at their ends that cooperate with the anti-rotation guide plates 10. The presence of these plates on both sides improves the guiding effect. The guide grooves 23 at the ends of the anti-rotation clamping plates 11 that cooperate with the anti-rotation guide plates 10 ensure that the weatherproof cover 5 does not shake when the screw 6 rotates and moves up and down, and moves vertically. The end of the weatherproof cylinder 1 is provided with an anti-rotation guide plate 10. One end of the anti-rotation guide plate 10 is connected to the weatherproof cylinder 1, and the other end of the anti-rotation guide plate 10 is connected to the outer cylinder 2, which serves to further fix the weatherproof cylinder 1 and the outer cylinder 2.
[0026] The weathertight cylinder 1 has a flange 13 at its bottom, and the outer cylinder 2 has a water outlet 14 at its bottom. A stiffening plate 15 is provided between the outer cylinder 2 and the flange 13, and the bottom end of the outer cylinder 2 is tapered. In this embodiment, the weathertight cylinder 1 is provided with a flange 13, and the tapered portion of the outer cylinder 2 has four water outlets 14. Stiffening plates 15 are provided between the outer cylinder 2 and the flange 13 to strengthen the fixing strength of the flange 13. The tapered design of the bottom end of the outer cylinder 1 facilitates rainwater drainage. The bottom of the weathertight cylinder 1 has a through-hole structure, allowing internal gases to be discharged outside the ship through the ventilation port 22 between the bushing fixing plate 17 and the outer cylinder 2.
[0027] The screw support frame 9 has a screw support seat 21 in the middle, and multiple sets of fixing plates 20 are provided on the outer side of the screw support frame 9. The fixing plates 20 are connected to the weatherproof cylinder 1 by welding. The screw support frame 9 is provided inside the weatherproof cylinder 1. The screw support frame 9 has a screw support seat 21 in the middle, and four fixing plates 20 are provided on the outer side of the screw support frame 9. The operator can rotate the screw 6 to make the screw 6 rotate only and prevent the screw 6 from moving vertically.
[0028] The weatherproof cover 5 has a packing strip 12 at its bottom and an indicator rod 16 on its top. The packing strip 12, located near the anti-rotation plate 11 at the bottom of the weatherproof cover 5, provides a seal and protection. The packing strip 12 is made of shaped rubber, offering excellent corrosion resistance and temperature tolerance. The indicator rod 16, located on the weatherproof cover 5, determines its position. When the weatherproof cover 5 descends to its lowest position, it closes the ventilation opening 22, cutting off oxygen supply and reducing smoke spread in the event of a fire, thus delaying the spread of smoke. The larger the weatherproof cover 5, the larger the diameter of the ventilation opening 22 between the bushing fixing plate 17 and the outer cylinder 2.
[0029] The ventilation opening 22 is equipped with an insect-proof net 18. The ventilation buckle 22 is equipped with a fan-shaped insect-proof net 18. In this embodiment, the insect-proof net 18 is provided with four pieces. The net pieces are easy to install and remove, easy to clean and inspect, and prevent insects or rats from entering the cabin.
[0030] One end of the screw 6 extends out of the bushing fixing plate 17, and a handwheel 19 is provided on the extended end of the screw 6. The handwheel 19 can easily rotate the screw 6.
[0031] Multiple sets of water outlets 14, reinforcing plates 15, and insect-proof nets 18 are provided. In this embodiment, four sets of water outlets 14, reinforcing plates 15, and insect-proof nets 18 are provided. The insect-proof nets 18 have flanges on both the inner and outer edges, which are aesthetically pleasing and easy to disassemble.
[0032] The windproof and rainproof cylindrical body 1 is cylindrical, and the insect-proof net 18 is fan-shaped. Multiple fan-shaped nets facilitate easy assembly and disassembly.
[0033] The working principle of this utility model is as follows: A weatherproof ventilation structure for ships, when the ventilation opening 22 needs to be closed, rotating the handwheel 19 causes the weatherproof cover 5 to descend along with the screw 6. The weatherproof cover 5 descends to a position contacting the upper end of the weatherproof cylinder 1, thus closing the ventilation opening 22, preventing rainwater from entering and controlling fire. When the ventilation opening 22 needs to be opened, rotating the handwheel 19 causes the screw 6 to rotate, driving the weatherproof cover 5 to rise. Gas inside the ship is discharged outside the ship through the ventilation opening 22 between the bushing fixing plate 17 and the outer cylinder 2. The bottom of the weatherproof cylinder 1 has a through-hole structure for gas to enter and exit. Rainwater falls from the bushing fixing plate 17 onto the weatherproof cover 5, and through the conical structure of the weatherproof cover 5, the rainwater flows out along the conical surface into the outlet 14. A weatherproof ventilation structure for ships includes a weatherproof cylindrical body 1 and an outer cylindrical body 2. One end of the outer cylindrical body 2 is connected to the weatherproof cylindrical body 1, and the other end of the outer cylindrical body 2 is connected to a support plate 3. The support plate 3 is connected to a bushing fixing plate 17. A ventilation opening 22 is located between the bushing fixing plate 17 and the outer cylindrical body 2. A weatherproof cover 5 is provided inside the outer cylindrical body 2, and a lifting mechanism 4 is connected to the weatherproof cover 5. The weatherproof cover 5 is conical, and the end face area of the weatherproof cover 5 near the bushing fixing plate 17 is smaller than the end face area of the other end of the weatherproof cover 5. The lifting mechanism 4 is used to raise and lower the weatherproof cover 5. The lifting mechanism 4 includes a screw 6 and a threaded sleeve 7. The threaded sleeve 7 is fitted onto the screw 6 and is located on the weatherproof cover 5. One end of the screw 6 has a bushing 8, which is connected to a support plate 3. The weatherproof cylinder 1 has a screw support frame 9, which is connected to the screw 6. The weatherproof cylinder 1 has a screw support seat 21 in the middle, and four fixing plates 20 are located on the outside of the screw support frame 9. The operator rotates the screw 6 to ensure that the screw 6 can only rotate, preventing it from moving vertically. The end of the weatherproof cylinder 1 has an anti-rotation guide plate 10, and the end of the weatherproof cover 5 has an anti-rotation clamping plate 11. The end of the anti-rotation clamping plate 11 has a guide groove 23 that cooperates with the anti-rotation guide plate 10. This ensures that when the screw 6 rotates and drives the weatherproof cover 5 to rise and fall, the weatherproof cover 5 will not rotate and will rise and fall vertically. The end of the weathertight cylinder 1 is equipped with an anti-rotation guide plate 10, which also serves to further secure the weathertight cylinder 1 and the outer cylinder 2. The bottom of the weathertight cover 5 is equipped with a packing strip 12. The bottom of the weathertight cylinder 1 is equipped with a flange 13, and the bottom of the outer cylinder 2 is equipped with a water outlet 14. A stiffening plate 15 is provided between the outer cylinder 2 and the flange 13. Stiffening plates 15 are provided between the outer cylinder 2 and the flange 13 to strengthen the fixing strength of the flange 13. A fan-shaped insect-proof net 18 is provided on the vent 22. In this embodiment, four pieces of the insect-proof net 18 are provided. The net pieces are easy to install and remove, facilitating cleaning and inspection, and preventing insects or rodents from entering the cabin.
[0034] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.
Claims
1. A weatherproof and ventilated structure for ships, characterized in that: It includes a weatherproof cylinder (1) and an outer cylinder (2). One end of the outer cylinder (2) is connected to the weatherproof cylinder (1), and the other end of the outer cylinder (2) is connected to a support plate (3). The support plate (3) is connected to a bushing fixing plate (17). A ventilation opening (22) is provided between the bushing fixing plate (17) and the outer cylinder (2). A weatherproof cover (5) is provided inside the outer cylinder (2). The weatherproof cover (5) is located below the bushing fixing plate (17). The weatherproof cover (5) is connected to a lifting mechanism (4).
2. A weatherproof and ventilated structure for ships according to claim 1, characterized in that: The weatherproof cover (5) is conical. The end face area of the weatherproof cover (5) near the bushing fixing plate (17) is smaller than the end face area of the other end of the weatherproof cover (5). The lifting mechanism (4) includes a screw (6) and a threaded sleeve (7). The threaded sleeve (7) is fitted on the screw (6) and is located on the weatherproof cover (5). The support plate (3) is connected to the support rod (24) of the bushing fixing plate (17). The bushing fixing plate (17) has a bushing (8) in the middle. The bushing (8) is located on the screw (6). The other end of the screw (6) is located inside the weatherproof cylinder (1).
3. A weatherproof and ventilated structure for ships according to claim 2, characterized in that: The weatherproof cylinder (1) is provided with a screw support frame (9), and the screw (6) is provided in the screw support frame (9). The weatherproof cylinder (1) is provided with anti-rotation guide plates (10) on both sides. One side of the anti-rotation guide plate (10) is connected to the weatherproof cylinder (1), and the other side of the anti-rotation guide plate (10) is connected to the outer cylinder (2). The end of the anti-rotation clamping plate (11) is provided with a guide groove (23) that cooperates with the anti-rotation guide plate (10).
4. A weatherproof and ventilated structure for ships according to claim 3, characterized in that: The bottom of the weatherproof cylinder (1) is provided with a flange (13), the bottom of the outer cylinder (2) is provided with a water outlet (14), a stiffening plate (15) is provided between the outer cylinder (2) and the flange (13), and the bottom end of the outer cylinder (2) is conical.
5. A weatherproof and ventilated structure for a ship according to claim 3 or 4, characterized in that: The screw support frame (9) has a screw support seat (21) in the middle, and multiple sets of fixing plates (20) are provided on the outside of the screw support frame (9).
6. A weatherproof and ventilated structure for a ship according to any one of claims 1-4, characterized in that: The bottom of the weatherproof cover (5) is provided with a packing strip (12); the weatherproof cover (5) is provided with an indicator rod (16).
7. A weatherproof and ventilated structure for a ship according to any one of claims 1-4, characterized in that: The ventilation opening (22) is equipped with an insect-proof net (18).
8. A weatherproof and ventilated structure for a ship according to any one of claims 2-4, characterized in that: One end of the screw (6) extends out of the bushing fixing plate (17), and a handwheel (19) is provided on the extended end of the screw (6).
9. A weatherproof and ventilated structure for a ship according to claim 7, characterized in that: The water outlet (14), reinforcing plate (15) and insect net (18) are set in multiple sets.
10. A weatherproof and ventilated structure for a ship according to claim 9, characterized in that: The windproof and rainproof cylinder (1) is cylindrical, and the insect-proof net (18) is fan-shaped.