Flashboard structure of airtight air brake for ship
By designing a matching structure between the rounded corner gate and the annular sealing ring, the problem of poor sealing at the corner of the gate is solved, achieving efficient sealing and simplified assembly, thus improving the safety and reliability of the airtight airlock for ships.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-05
- Publication Date
- 2026-04-24
AI Technical Summary
The existing airtight windbreaks for ships have poor sealing at corners, leading to air leakage, increasing safety hazards, and making assembly difficult.
A gate structure is designed, which adopts a rounded corner gate and is equipped with a continuous annular sealing ring. When the gate and the gate seat are closed, the sealing ring is squeezed and tightly fitted. Combined with the worm gear box drive mechanism, the gate is rotated and sealed.
It effectively eliminates the risk of air leakage at the corner of the gate, reduces the assembly difficulty of the sealing ring, and improves the sealing effect and safety.
Smart Images
Figure CN224159419U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of marine facility technology, specifically relating to a gate structure for an airtight windbreak for ships. Background Technology
[0002] Ships are a common mode of transportation, indispensable in industries such as transport and travel, especially oil tankers, chemical tankers, liquefied gas carriers, passenger ships, and military vessels. Their normal operation and personnel safety heavily rely on reliable ventilation systems. Ventilation ducts running through all compartments and decks of the ship also constitute potential pathways for the uncontrolled spread of fire, smoke, and hazardous gases within the hull. Therefore, when ventilation ducts need to penetrate critical fireproof bulkheads or bulkheads separating hazardous and safe areas, airtight dampers must be installed to regulate airflow or block airflow and liquid flow. Damperes are an essential component of airtight dampers. Figure 1 As shown, the gate 2 is usually in a near-rectangular structure with right angles. The sealing ring 24 needs to be cut and spliced at the corner of the gate 2 to achieve a seal. The sealing performance at the corner is often very poor, and the installation requirements for the sealing ring 24 are particularly high. It is especially easy to leak air at the sharp corner of the bend, so it cannot meet the needs of consumers.
[0003] In view of the aforementioned problems, it is necessary to design a gate structure for a ship's airtight airlock that is simple in structure, low in cost, has good sealing performance, and can prevent air leakage at corners. To this end, the applicant has ingeniously designed this technical solution. Utility Model Content
[0004] The purpose of this invention is to provide a gate structure for a ship's airtight damper, which helps to improve the gate structure and the mating structure between the gate and the sealing ring, thereby reducing the assembly difficulty of the sealing ring and eliminating the safety hazards caused by poor sealing at corners.
[0005] The present invention achieves its objective as follows: a gate structure for a ship's airtight damper includes a damper sleeve, a gate seat is provided inside the damper sleeve, a set of ventilation openings are spaced apart on the gate seat, and a gate is rotatably mounted at each ventilation opening. The multiple gates are interconnected and driven to rotate by a driving mechanism installed outside the damper sleeve. The invention is characterized in that: the corners of the gates are rounded, and the edges of the gates are covered with a sealing ring. The sealing ring is annular and continuously surrounds the gate, and the sealing ring has a surrounding structure that fits the rounded corner at the rounded corner of the gate.
[0006] In a specific embodiment of this utility model, a set of gate bearing seats are provided at intervals on the front surface of the gate plate, and a shaft is respectively inserted between the gate bearing seats. The two ends of the shaft are respectively rotatably fixed to the front surface of the gate seat through a bearing seat. A sealing ring is provided around the gate plate. When the gate plate and the gate seat are in the closed state, the sealing ring is squeezed by the inner edge of the ventilation opening of the gate plate and the gate seat to form a sealed connection, so that the gate plate and the gate seat are located on the same horizontal plane when closed.
[0007] In another specific embodiment of this utility model, the shape of the vent matches the shape of the gate, there is a gap between the vent and the gate, and the sealing ring is in an interference fit with the inner edge of the vent within the gap.
[0008] In another specific embodiment of this utility model, a gate linkage hinge ear is respectively provided on the front surface of the gate, and the gate linkage hinge ears of the plurality of gates are hingedly connected by a linkage rod. The linkage rod is provided with a linkage rod hinge ear at the position corresponding to the gate linkage hinge ear, and the linkage rod hinge ear and the corresponding gate linkage hinge ear are hingedly connected.
[0009] In another specific embodiment of this utility model, the opening edge of the damper sleeve is folded with a flange edge.
[0010] In another specific embodiment of this utility model, the gate plate rotates eccentrically on the bearing seat via the gate plate bearing seat and the shaft body.
[0011] In a further specific embodiment of this utility model, the thickness of the gate plate is the same as the thickness of the gate seat.
[0012] In a more specific embodiment of this utility model, the drive mechanism is installed on the outside of the damper sleeve, and the shaft of one of the multiple damper plates extends toward the drive mechanism and passes through the damper sleeve to achieve a transmission connection with the drive mechanism.
[0013] In yet another specific embodiment of this utility model, the driving mechanism is a worm gear box, and the driving mechanism adopts either a manual rotary driving structure or an automatic motor driving structure.
[0014] In yet another specific embodiment of this utility model, the sealing ring includes a pair of edgings and a sealing end, the sealing end having an air cushion layer inside, the sealing ring being held at the edge of the gate by the pair of edgings, and the sealing end being mutually sealed to the inner edge of the ventilation opening of the gate seat; the sealing ring is a rubber sealing ring.
[0015] The present invention has the following advantages after adopting the above structure: due to the use of a rounded corner gate plate and a continuous ring-shaped sealing ring structure, not only is the safety hazard of the gate plate not being easy to seal at the sharp corner position eliminated, but the assembly difficulty of the sealing ring is also greatly reduced. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of existing technology;
[0017] Figure 2 This is a schematic diagram of an airtight damper structure according to an embodiment of the present invention;
[0018] Figure 3 This is a cross-sectional view of the sealing ring according to an embodiment of the present invention.
[0019] In the diagram: 1. Air damper sleeve, 11. Dam seat, 111. Ventilation opening, 12. Flange edge; 2. Dam plate, 21. Dam plate bearing seat, 22. Shaft body, 23. Bearing seat, 24. Sealing ring, 241. Edge banding, 242. Sealing end, 243. Air cushion layer, 25. Dam plate linkage hinge lug, 26. Rounded corner; 3. Drive mechanism; 4. Linkage rod, 41. Linkage rod hinge lug. Detailed Implementation
[0020] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. However, the description of the embodiments is not a limitation on the technical solution. Any formal but not substantive changes made based on the concept of this utility model should be considered within the protection scope of this utility model.
[0021] In the following description, all directional or positional concepts involving up, down, left, right, front, and back are based on... Figure 2 The positions shown are for reference only and should not be construed as a specific limitation on the technical solution provided by this utility model.
[0022] Please see Figure 2 and combined Figure 3 The diagram illustrates a damper sleeve 1. A damper seat 11 is provided inside the damper sleeve 1. The damper seat 11 can be fixedly connected to the inner wall of the damper sleeve 1 by welding. A set of ventilation openings 111 are spaced apart on the damper seat 11. A gate plate 2 is rotatably provided at each of the ventilation openings 111. The multiple gate plates 2 are interconnected and driven to rotate by a drive mechanism 3 installed outside the damper sleeve 1.
[0023] The technical innovation of this utility model is as follows: the corners of the aforementioned gate plate 2 are respectively formed as rounded corners 26, and the edges of the aforementioned gate plate 2 are respectively covered with a sealing ring 24. The aforementioned sealing ring 24 is annular and continuously surrounds the gate plate 2. The sealing ring 24 forms a surrounding structure that fits the rounded corner 26 at the rounded corner 26 of the gate plate 2.
[0024] Furthermore, a set of gate bearing seats 21 are provided at intervals on the front surface of the aforementioned gate plate 2, and a shaft 22 is respectively inserted between the aforementioned gate bearing seats 21. The two ends of the aforementioned shaft 22 are respectively rotatably fixed to the front surface of the gate seat 11 through a bearing seat 23. The aforementioned gate plate 2 rotates eccentrically on the bearing seat 23 through the gate bearing seats 21 and the shaft 22. A sealing ring 24 is provided around the aforementioned gate plate 2. When the aforementioned gate plate 2 and the gate seat 11 are in the closed state, the sealing ring 24 is squeezed by the inner edge of the ventilation port 111 of the gate plate 2 and the gate seat 11 to form a sealed connection, so that the aforementioned gate plate 2 and the gate seat 11 are located on the same horizontal plane when closed.
[0025] The shape of the aforementioned vent 111 matches the shape of the gate 2, and there is a gap between the aforementioned vent 111 and the gate 2. The aforementioned sealing ring 24 is in an interference fit with the inner edge of the vent 111 within the gap.
[0026] A gate linkage hinge ear 25 is provided on the front surface of the aforementioned gate 2. The gate linkage hinge ears 25 of the aforementioned gate 2 are hingedly connected by a linkage rod 4. The aforementioned linkage rod 4 is provided with a linkage rod hinge ear 41 at the position corresponding to the gate linkage hinge ear 25. The aforementioned linkage rod hinge ear 41 and the corresponding gate linkage hinge ear 25 are hingedly connected.
[0027] The opening edge of the aforementioned air damper sleeve 1 is folded with a flange edge 12, and the aforementioned gate plate 2 rotates eccentrically on the bearing seat 23 through the gate plate bearing seat 21 and the shaft 22.
[0028] The thickness of the aforementioned gate plate 2 is the same as the thickness of the gate seat 11.
[0029] The aforementioned drive mechanism 3 is installed on the outside of the damper sleeve 1. The shaft 22 of one of the aforementioned gate plates 2 extends toward the drive mechanism 3 and passes through the damper sleeve 1 to achieve a transmission connection with the drive mechanism 3.
[0030] The aforementioned drive mechanism 3 is a worm gear box. The aforementioned drive mechanism 3 adopts either a manual rotary drive structure or an automatic motor drive structure. In this embodiment, the aforementioned drive mechanism 3 preferably adopts a manual rotary drive structure and is equipped with a drive handwheel.
[0031] Please see Figure 3The aforementioned sealing ring 24 is a rubber sealing ring, which includes a pair of edgings 241 and a sealing end 242. An air cushion layer 243 is formed within the sealing end 242. The sealing ring 24 is clamped to the edge of the gate plate 2 by the pair of edgings 241, and the sealing end 242 is mutually sealed with the inner edge of the ventilation opening 111 of the gate seat 11. When the edgings 241 are clamped and fixed to the edge of the gate plate 2, an adhesive layer is added between the contact surfaces of the pair of edgings 241 and the gate plate 2. In this embodiment, the adhesive layer is preferably glue, to improve the fixing strength and further enhance the sealing performance between the sealing ring 24 and the valve plate 2.
[0032] Please continue reading. Figure 2 and Figure 3 When it is necessary to close the airtight damper, the crew manually rotates the aforementioned drive mechanism 3, causing the shaft 22 connected to the drive mechanism 3 to rotate. The rotation of the aforementioned shaft 22 drives the gate plate 2 connected to it to rotate eccentrically until the gate plate 2 is inserted into the corresponding ventilation opening 111. Meanwhile, the remaining valve plates 2 rotate synchronously under the action of the linkage rod 4 and are inserted into the corresponding ventilation opening 111. At this time, the aforementioned sealing ring 24 is located between the edge of the gate plate 2 and the ventilation opening 111 and is squeezed and deformed. The aforementioned air cushion layer 243 is squeezed to generate elasticity and forms a tight fit with the edge of the ventilation opening 111.
[0033] In summary, the technical solution provided by this utility model makes up for the shortcomings of the prior art, successfully completes the invention task, and accurately realizes the technical effects described by the applicant in the above-mentioned technical effects column.
Claims
1. A gate structure for a ship's airtight damper, comprising a damper sleeve (1), a gate seat (11) provided inside the damper sleeve (1), a set of ventilation openings (111) spaced apart on the gate seat (11), a gate plate (2) rotatably disposed at each ventilation opening (111), the plurality of gate plates (2) being interconnected and driven to rotate by a driving mechanism (3) installed outside the damper sleeve (1), characterized in that: The corners of the gate (2) are respectively rounded (26), and the edges of the gate (2) are respectively covered with a sealing ring (24). The sealing ring (24) is annular and continuously surrounds the gate (2). The sealing ring (24) forms a surrounding structure that fits the rounded corner (26) at the rounded corner (26) of the gate (2).
2. The gate structure of a ship's airtight damper according to claim 1, characterized in that: A set of gate bearing seats (21) are provided at intervals on the front surface of the gate (2). A shaft (22) is passed through each of the gate bearing seats (21). The two ends of the shaft (22) are rotatably fixed to the front surface of the gate seat (11) by a bearing seat (23). A sealing ring (24) is provided around the gate (2). When the gate (2) and the gate seat (11) are in the closed state, the sealing ring (24) is squeezed by the inner edge of the ventilation opening (111) of the gate (2) and the gate seat (11) to form a sealed connection, so that the gate (2) and the gate seat (11) are located on the same horizontal plane when closed.
3. The gate structure of a ship's airtight damper according to claim 1, characterized in that: The shape of the vent (111) matches the shape of the gate (2), and there is a gap between the vent (111) and the gate (2). The sealing ring (24) is in an interference fit with the inner edge of the vent (111) within the gap.
4. The gate structure of a ship's airtight damper according to claim 1, characterized in that: A gate linkage hinge ear (25) is provided on the front surface of the gate (2). The gate linkage hinge ears (25) of the multiple gates (2) are hinged together by a linkage rod (4). The linkage rod (4) is provided with a linkage rod hinge ear (41) at the position corresponding to the gate linkage hinge ear (25). The linkage rod hinge ear (41) and the corresponding gate linkage hinge ear (25) are hinged together.
5. The gate structure of a ship's airtight damper according to claim 1, characterized in that: The opening edge of the damper sleeve (1) is folded with a flange edge (12).
6. The gate structure of a ship's airtight damper according to claim 1, characterized in that: The gate (2) rotates eccentrically on the bearing seat (23) via the gate bearing seat (21) and the shaft (22).
7. The gate structure of a ship's airtight damper according to claim 1, characterized in that: The thickness of the gate plate (2) is the same as the thickness of the gate seat (11).
8. The gate structure of a ship's airtight damper according to claim 1, characterized in that: The drive mechanism (3) is installed on the outside of the windshield sleeve (1). The shaft (22) of one of the multiple gate plates (2) extends toward the drive mechanism (3) and passes through the windshield sleeve (1) to achieve a transmission connection with the drive mechanism (3).
9. The gate structure of a ship's airtight damper according to claim 1, characterized in that: The drive mechanism (3) is a worm gear box, and the drive mechanism (3) adopts either a manual rotation drive structure or an automatic motor drive structure.
10. The gate structure of a ship's airtight damper according to claim 1, characterized in that: The sealing ring (24) includes a pair of edgings (241) and a sealing end (242). An air cushion layer (243) is formed inside the sealing end (242). The sealing ring (24) is clamped at the edge of the gate plate (2) by the pair of edgings (241), and the sealing end (242) is mutually sealed with the inner edge of the ventilation opening (111) of the gate seat (11). The sealing ring (24) is a rubber sealing ring.