A new type of weather tight steel shutter
By employing a support device in the windproof and rainproof steel louvers, eliminating the static pressure box structure, and directly connecting the ventilation duct to the bulkhead, the problems of inconvenient installation and maintenance are solved, achieving convenient installation and reduced wind noise.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHU SHIPYARD CO LTD
- Filing Date
- 2025-07-24
- Publication Date
- 2026-07-21
AI Technical Summary
The existing weatherproof steel louvers present inconveniences during installation and maintenance. In particular, the presence of the static pressure box affects the installation of ventilation ducts and weatherproof devices, leading to inconvenience in the installation and subsequent maintenance of the entire device.
A support device is adopted, including supporting angle steel inside the window seat and installation angle steel outside the louver. Through the cooperation of fixing bolts and elastic plates, the installation of the louver is simplified, and the gap between the louver and the window seat is increased to reduce wind noise. The static pressure box structure is eliminated, and the ventilation duct is directly connected to the bulkhead.
It enables convenient installation of louvers, saves labor, reduces wind noise, simplifies structural tightness inspection and anti-corrosion paint treatment, and reduces construction time and material costs.
Smart Images

Figure CN224532584U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of marine louvers. Specifically, this utility model relates to a new type of windproof and rainproof steel louver. Background Technology
[0002] Typically, weatherproof steel louvers serve as ventilation openings for ships, allowing fresh air to enter while preventing seawater, rainwater, insects, and rodents from entering. Their independent louver design ensures that rainwater, insects, and rodents are prevented from entering the ship under normal sea conditions and with the weatherproofing system open.
[0003] A patent application (patent number 201721777469.1, published on September 18, 2018) discloses a laboratory-specific adjustable louvered air vent, including a static pressure box. The static pressure box is constructed from welded stainless steel plates, and an openable stainless steel louver is horizontally connected to the outer bottom of the box. The openable louver contains a horizontally embedded medium-efficiency filter layer within a frame. This invention features a reasonable structural design and simple operation. The openable stainless steel louver reduces maintenance costs. Laboratory maintenance personnel do not need to enter the piping system to operate the regulating valve; they can directly adjust the regulating valve actuator within the concealed regulating valve body by opening the louver. This ensures the pressure gradient in the laboratory, achieving pressure control. With guaranteed airflow, harmful and toxic gases are filtered and discharged outdoors as required, preventing cross-contamination to other rooms and ensuring the smooth progress of experiments.
[0004] In the existing technology, louvers require a static pressure box for installation. However, the presence of the static pressure box affects the installation of ventilation ducts and weatherproofing devices, making the installation and subsequent maintenance of the entire device inconvenient. Utility Model Content
[0005] The present invention aims to provide a new type of weatherproof steel louver with a simple structure and easy installation.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a novel weatherproof steel louver, including a window base, the louver being installed inside the window base, weatherproof covers and bulkheads being provided on both sides of the window base, ventilation ducts being provided inside the bulkheads, and a support device for simplified installation being provided between the louver and the window base.
[0007] The support device consists of a supporting angle steel installed on the inner wall of the window seat and an installation angle steel installed on the outer side of the louver, with the supporting angle steel and the installation angle steel fitting together.
[0008] The supporting angle steel is welded to the inner wall of the window seat. The mounting angle steel is equipped with a fixing bolt. The end of the fixing bolt is equipped with a fixing part, and the other end of the fixing bolt is equipped with a bolt head. The end of the fixing bolt passes through the mounting angle steel.
[0009] The fastener is a circumferentially arranged elastic sheet set on the fixing bolt, and an ejector spring is provided between the mounting angle steel and the bolt head.
[0010] The gap between the window seat and the louver is 30mm.
[0011] The bulkhead and the ventilation duct are connected at an angle.
[0012] The window seat is equipped with a hinge that connects to the windproof and rainproof cover.
[0013] The weatherproof cover is equipped with bolts that connect to the window seat.
[0014] The end of the ventilation duct is directly opposite the louver.
[0015] The window seat is a flat steel window seat.
[0016] The technical advantages of this utility model are as follows: the window seat serves to connect with and support the louvers to the bulkhead, making installation convenient and eliminating the need for a separate static pressure box structure for the louvers, thus saving labor. Furthermore, the ventilation duct is directly connected to the bulkhead, facilitating the inspection of the structural tightness and the application of anti-corrosion paint. Attached Figure Description
[0017] This manual includes the following figures, which illustrate the following:
[0018] Figure 1 This is a structural schematic diagram of a novel windproof and rainproof steel louver according to this utility model;
[0019] Figure 2 for Figure 1 A schematic diagram of the support structure for a new type of windproof and rainproof steel louver.
[0020] The following are marked in the diagram: 1. Window seat; 2. Hinge; 3. Louver; 4. Weatherproof cover; 5. Bulkhead; 6. Ventilation duct; 7. Supporting angle steel; 8. Mounting angle steel; 9. Fixing bolt; 10. Bolt head; 11. Elastic sheet; 12. Push-out spring; 13. Baffle. Detailed Implementation
[0021] 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 utility model concept and technical solution, and to facilitate its implementation.
[0022] Please see Figure 1-2 A novel weatherproof steel louver includes a window base 1, with louvers 3 housed within the window base 1. Weatherproof covers 4 and bulkheads 5 are located on either side of the window base 1. A ventilation duct 6 is installed within the bulkhead 5. A simplified installation support device is provided between the louvers 3 and the window base 1. The window base 1 serves to connect to the bulkhead 5 and support the louvers 3, facilitating installation without requiring a separate static pressure box structure for the louvers 3, thus saving labor. The ventilation duct 6 is directly connected to the bulkhead 5, facilitating structural airtightness checks and anti-corrosion painting. The support device quickly connects the louvers 3 and the support device together, increasing the gap between the louvers 3 and the window base 1, thereby reducing wind noise. Furthermore, the overall structure of the support device is relatively simple, making installation convenient, even within the confined space of the window base 1.
[0023] The support device consists of a support angle steel 7 installed on the inner wall of the window seat 1 and an installation angle steel 8 installed on the outer side of the louver 3. The support angle steel 7 and the installation angle steel 8 fit together. By using the cooperation of the support angle steel 7 and the installation angle steel 8, the louver 3 is supported, thereby raising the louver 3 and increasing the gap between the louver 3 and the window seat 1, thus reducing wind noise.
[0024] The supporting angle steel 7 is welded to the inner wall of the window seat 1. The mounting angle steel 8 is provided with a fixing bolt 9. The end of the fixing bolt 9 is provided with a fixing part, and the other end of the fixing bolt 9 is provided with a bolt head 10. The end of the fixing bolt 9 passes through the mounting angle steel 8. The supporting angle steel 7 and the mounting angle steel 8 are connected together by the fixing bolt 9. The fixing bolt 9 is used to achieve relative positioning between the supporting angle steel 7 and the mounting angle steel 8 to prevent skewing. The fixing part is used to fix the mounting angle steel 8 and the supporting angle steel 7 together.
[0025] The fastener is a circumferentially arranged elastic plate 11 mounted on the fixing bolt 9. A push-out spring 12 is provided between the mounting angle steel 8 and the bolt head 10. The inclined elastic plate 11 is compressed when passing through the mounting angle steel 8, allowing the fixing bolt 9 and the elastic plate 11 to pass through the supporting angle steel 7. After passing through the supporting angle steel 7, the elastic plate 11 opens, with its end abutting against the surface of the supporting angle steel 7, preventing the fixing bolt 9 from detaching from the supporting angle steel 7. Furthermore, because the push-out spring 12 constantly applies an outward pushing force to the bolt head 10, the supporting angle steel... The steel 7 and the mounting angle steel 8 can always be tightly attached together. At the same time, an arc-shaped baffle 13 is provided on the side of the supporting angle steel 7 away from the mounting angle steel 8. After the elastic piece 11 passes through the supporting angle steel 7, the end of the elastic piece 11 will abut against the inside of the baffle 13. The baffle 13 is used to support and block the end of the elastic piece 11, thereby ensuring that the fixing bolt 9 will not fall off. Meanwhile, the two sides of the fixing bolt 9 are flat and cooperate with the holes on the mounting angle steel 8 to ensure the angle of the fixing bolt 9, prevent the fixing bolt 9 from rotating, and avoid the situation where the tilting plate cannot enter the baffle 13 after rotation, thus improving the installation strength.
[0026] The gap between the window seat 1 and the louver 3 is 30mm. When the bottom of the louver 3 is raised by 30mm so that the gap between the window seat 1 and the louver 3 is 30mm, the wind noise can be eliminated by up to 59 decibels, effectively reducing wind noise.
[0027] An angle joint is formed between bulkhead 5 and ventilation duct 6; this facilitates structural tightness checks and anti-corrosion paint treatment at this location.
[0028] The window seat 1 is provided with a hinge 2 that is connected to the weather cover 4 to facilitate the opening or closing of the weather cover 4 and prevent the weather cover 4 from falling off the window seat 1.
[0029] The weatherproof cover 4 is equipped with bolts that connect to the window seat 1, ensuring the closure of the weatherproof cover 4.
[0030] The end of the ventilation duct 6 is directly opposite the louver 3; in this way, the airflow flowing through the ventilation duct 6 can pass right through the louver 3.
[0031] Window seat 1 is a flat steel window seat 1; the original angle steel window seat 1 is replaced with a flat steel window seat 1, and the height of window seat 1 is changed from the original 70mm to 100mm to ensure the welding requirements of ventilation duct 6 and bulkhead 5.
[0032] Working principle: By replacing the original angle steel window seat 1 with a flat steel window seat 1, and increasing the height of the window seat 1 from 70mm to 100mm, the welding requirements of the ventilation duct 6 and the bulkhead 5 are ensured. Meanwhile, the louver 3 is installed inside the window seat 1, with the weatherproof cover 4 and the bulkhead 5 located on either side of the window seat 1. The ventilation duct 6 is installed on the bulkhead 5, forming an angle joint with it, facilitating structural tightness checks and anti-corrosion painting. The overall structure is simple, eliminating the need for a separate static pressure box structure for the louver 3, saving shipbuilding labor. Compared to the standard louver 3, this louver 3 solves the corrosion protection problem at the welded structure, saving shipbuilding materials and manpower. To shorten construction time, the louver 3 inside the window base 1 is raised by 30mm, ensuring a 30mm gap between the window base 1 and the louver 3, which reduces wind noise. Tests have shown that this can reduce wind noise by 59-64 decibels. During installation, the supporting angle steel 7 and the mounting angle steel 8 are first attached together, and then the fixing bolt 9 is pushed through the supporting angle steel 7. After the elastic piece 11 on the fixing bolt 9 passes through the supporting angle steel 7, the elastic piece 11 opens, and the end of the elastic piece 11 abuts against the inside of the baffle 13. The ejecting spring 12 holds the fixing bolt 9 in place, achieving a fixing effect. Compared with traditional screw fixing, this is more convenient and more suitable for operation in confined spaces.
[0033] The technical advantages of this utility model are as follows: the window seat 1 serves to connect with and support the louver 3 to the bulkhead 5, making installation convenient and eliminating the need for a separate static pressure box structure for the louver 3, thus saving labor. Furthermore, the ventilation duct 6 is directly connected to the bulkhead 5, facilitating the inspection of the structural tightness and the application of anti-corrosion paint.
[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 novel type of windproof and rainproof steel louver, characterized in that: Includes a window seat (1), the louver (3) is installed inside the window seat (1), the two sides of the window seat (1) are respectively provided with a weatherproof cover (4) and a bulkhead (5), the bulkhead (5) is provided with a ventilation duct (6), and a simplified installation support device is provided between the louver (3) and the window seat (1).
2. The novel weatherproof steel louver according to claim 1, characterized in that: The support device is divided into a support angle steel (7) set on the inner wall of the window seat (1) and an installation angle steel (8) set on the outer side of the louver (3), and the support angle steel (7) and the installation angle steel (8) are fitted together.
3. A novel weatherproof steel louver according to claim 2, characterized in that: The supporting angle steel (7) is welded to the inner wall of the window seat (1). The mounting angle steel (8) is provided with a fixing bolt (9). The end of the fixing bolt (9) is provided with a fixing part. The other end of the fixing bolt (9) is provided with a bolt head (10). The end of the fixing bolt (9) passes through the mounting angle steel (8).
4. A novel weatherproof steel louver according to claim 3, characterized in that: The fastener is a circumferentially arranged elastic sheet (11) set on the fixing bolt (9), and an ejector spring (12) is provided between the mounting angle steel (8) and the bolt head (10).
5. A novel weatherproof steel louver according to claim 1, characterized in that: The gap between the window seat (1) and the louver (3) is 30mm.
6. A novel weatherproof steel louver according to claim 1, characterized in that: The bulkhead (5) and the ventilation duct (6) are connected at an angle.
7. A novel weatherproof steel louver according to claim 1, characterized in that: The window seat (1) is provided with a hinge (2) that is connected to the windproof cover (4).
8. A novel weatherproof steel louver according to claim 1 or 7, characterized in that: The weatherproof cover (4) is provided with bolts that connect to the window seat (1).
9. A novel weatherproof steel louver according to claim 1, characterized in that: The end of the ventilation duct (6) is directly opposite the louver (3).
10. A novel weatherproof steel louver according to claim 1, characterized in that: The window seat (1) is a flat steel window seat (1).