Marine fireproof door convenient to maintain and overhaul
By introducing limit components and control panels into marine fire doors, the problems of air stagnation and inconvenient maintenance in fire escape routes have been solved, enabling convenient disassembly and assembly as well as efficient maintenance and repair, thus improving the effectiveness of the device.
Patent Information
- Application Number
- CN202520985513.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-19
- Publication Date
- 2026-03-20
- Estimated Expiration
- 2035-05-19
AI Technical Summary
Existing marine fire doors do not facilitate ventilation of fire escape routes when closed, leading to air stagnation and making maintenance inconvenient and reducing maintenance efficiency.
A marine fire door designed for easy maintenance and repair is presented. Through the use of limiting components, operating panel and hovering hinges, air circulation and easy disassembly and assembly are achieved. The coordinated use of components such as limiting blocks, guide rods, dampers, operating rods and closing plates improves the ventilation effect and maintenance efficiency of the device.
Ensuring air circulation in fire escape routes when there is no fire facilitates the disassembly and maintenance of the equipment, improves maintenance efficiency and effectiveness, and reduces maintenance costs.
Smart Images

Figure CN224013816U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of marine fire door, concretely to a marine fire door convenient to maintain and overhaul. BACKGROUND
[0002] Marine fire door is one of important fire barriers on the ship, mainly used for separating cabin and walkway, preventing fire expansion. They can keep intact when fire occurs, prevent smoke and flame from passing, thereby protecting the life safety of the personnel on the ship, such as;
[0003] The authorized announcement No. CN210768482U provides a marine fire door, including door frame and door leaf, the door leaf is hingedly connected on the inner wall of the door frame through the flag hinge and the peripheral side of the door leaf is smoothly embedded in the door frame, the door leaf includes the hollowly arranged steel outer plate, the protection piece fixedly connected in the steel outer plate for blocking the spread of fire and the reinforcing part arranged on the steel outer plate and the door frame respectively for strengthening the strength, the reinforcing part includes a ring of reinforcing plates fixedly arranged on the inner wall of the steel outer plate, the first step plate fixedly connected on the peripheral side of the steel outer plate and at least two second step plates fixedly arranged on the door frame. The marine fire door enhances the overall strength of the door leaf through the protection piece fixedly connected in the steel outer plate, and the marine rock wool with fireproof property is filled in the door leaf and the door frame, so that the door leaf and the door frame have good fireproof benefit and simple structure, and the filling in the door leaf has strong tightness.
[0004] Combining the prior art scheme and the actual production and processing, the current marine fire door still has the following defects: it is inconvenient to ensure the ventilation of the fire fighting channel during daily use, which leads to the air in the fire fighting channel being in a stagnant state during the process of no fire and closing, reduces the use effect of the device, and it is inconvenient to disassemble, maintain and assemble the device after use, which leads to the maintenance personnel not easy to disassemble, replace and overhaul the device after damage, reduces the maintenance and overhaul efficiency of the device, therefore, the utility model provides a marine fire door convenient to maintain and overhaul to solve the above problems. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a marine fire door convenient to maintain and overhaul to solve the problems of inconvenient ventilation of the fire fighting channel during daily use, leading to the air in the fire fighting channel being in a stagnant state during the process of no fire and closing, reducing the use effect of the device, and inconvenient disassembly, maintenance and assembly of the device after use, leading to the maintenance personnel not easy to disassemble, replace and overhaul the device after damage, reducing the maintenance and overhaul efficiency of the device in the above background technology.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a marine fire door that is easy to maintain and repair, comprising: a door frame, and a fire door body disposed inside the door frame, and further comprising:
[0007] A fireproof hinge is installed on the rear side of the fireproof door body, and a fireproof rubber strip is provided on the outer side of the fireproof door body. A door lock is provided at the front end of the fireproof door body, and a first support frame is provided on the upper side of the fireproof door body. A limit component is provided on the rear side of the first support frame, and a door closer is provided on the right side of the first support frame. A fireproof core is provided inside the fireproof door body, and a fireproof plate is provided on the outer side of the fireproof core. A second support frame is provided in the middle of the fireproof door body, and an operating panel is provided inside the second support frame. A closing plate is provided on the left side of the operating panel, and a guide ring is provided on the left side of the closing plate. A hovering hinge is provided on the outer side of the guide ring, and a ventilation opening is provided on the upper side of the hovering hinge.
[0008] In one possible implementation, the limiting component includes a limiting block mounted on the rear side of the first support frame, a guide rod provided on the outer side of the limiting block, a damper provided on the rear side of the limiting block, and an operating lever provided on the inner side of the damper.
[0009] In one possible implementation, the limiting block is engaged with the door closer, and the limiting block is slidably disposed with the guide rod.
[0010] In one possible implementation, the longitudinal section of the guide rod is an "I" shaped structure, and the guide rod is symmetrically arranged about the central axis of the limiting block.
[0011] In one possible implementation, the operating panel is rotatably arranged relative to the second support frame, and the longitudinal section of the closed plate arranged on the left side of the operating panel is a semi-circular structure.
[0012] In one possible implementation, the fire door body and the fire-resistant hinge are rotatably arranged relative to each other, and the fire-resistant hinge is symmetrically arranged about the central axis of the fire door body.
[0013] In one possible implementation, a positioning ring is provided on the right side of the second support frame, and a limit rod is provided on the right side of the positioning ring.
[0014] In one possible implementation, the second support frame is engaged with the positioning ring, and the limiting rod is threadedly connected to both the positioning ring and the second support frame.
[0015] Compared with the prior art, the beneficial effects of the utility model are: the marine fire door convenient to maintain and overhaul can guarantee the ventilation of the fire passage in daily use, can still guarantee the air circulation in the fire passage during the process of no fire and closing, improves the use effect of the device, and the device can be conveniently disassembled, maintained and replaced after use, improves the maintenance and overhaul efficiency of the device, has better use effect, and the specific contents are shown as follows:
[0016] 1. The operating rod drives the limiting block to displace along the guide rod to the rear side to extrude the damper, so that the limiting block releases the limiting of the door closer, the operator can take out the door closer to the right side to maintain and overhaul, and the maintenance and overhaul efficiency of the device is improved.
[0017] 2. The operating disc drives the closing plate to rotate in the second support frame by cooperating with the guide ring and the hovering hinge, so that the closing plate closes or opens the opening of the air vent, the device can conveniently complete the ventilation or sealing work during work, and the use efficiency of the device is improved.
[0018] 3. The rotating limiting rod releases the limiting of the second support frame and the positioning ring, the operator can pull out the second support frame to the right side to clean and maintain, the maintenance and overhaul cost of the device is reduced, and the use effect of the device is improved. DRAWINGS
[0019] Figure 1 It is a front view of the utility model;
[0020] Figure 2 It is a side view of the utility model;
[0021] Figure 3 It is a top view of the utility model;
[0022] Figure 4 It is a front view of the utility model Figure 1 It is an enlarged structure diagram of A in the utility model;
[0023] Figure 5 It is an enlarged structure diagram of B in the utility model Figure 2 It is an enlarged structure diagram of B in the utility model;
[0024] Figure 6 It is a connecting integral structure diagram of the limiting block and the guide rod in the utility model.
[0025] In the figure: 1, door frame; 2, fireproof hinge; 3, fireproof door body; 4, fireproof rubber strip; 5, door lock; 6, first support frame; 7, limiting assembly; 701, limiting block; 702, guide rod; 703, damper; 704, operating rod; 8, door closer; 9, fireproof core; 10, fireproof plate; 11, second support frame; 12, positioning ring; 13, limiting rod; 14, operation disc; 15, closing plate; 16, guide ring; 17, hovering hinge; 18, air vent. DETAILED DESCRIPTION
[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0027] Please refer to Figures 1-6 The present application provides a technical solution: a marine fireproof door convenient for maintenance and repair, comprising: a door frame 1 and a fireproof door body 3 arranged inside the door frame 1, further comprising:
[0028] A fireproof hinge 2 is installed at the back side of the fireproof door body 3, and a fireproof rubber strip 4 is arranged on the outer side of the fireproof door body 3. A door lock 5 is arranged at the front end of the fireproof door body 3, and a first support frame 6 is arranged on the upper side of the fireproof door body 3. A limiting assembly 7 is arranged at the back side of the first support frame 6, and a door closer 8 is arranged at the right side of the first support frame 6. A fireproof core 9 is arranged inside the fireproof door body 3, and a fireproof plate 10 is arranged on the outer side of the fireproof core 9. A second support frame 11 is arranged at the middle of the fireproof door body 3, and an operation disc 14 is arranged inside the second support frame 11. A closing plate 15 is arranged at the left side of the operation disc 14, and a guide ring 16 is arranged at the left side of the closing plate 15. A hovering hinge 17 is arranged on the outer side of the guide ring 16, and an air vent 18 is formed on the upper side of the hovering hinge 17, forming a complete marine fireproof door.
[0029] As Figure 2 , Figure 5 and Figure 6As shown, the limiting assembly 7 includes a limiting block 701 installed on the rear side of the first support frame 6, a guide rod 702 is provided on the outer side of the limiting block 701, a damper 703 is provided on the rear side of the limiting block 701, and an operating rod 704 is provided on the inner side of the damper 703. The limiting block 701 is engaged with the door closer 8, and the limiting block 701 and the guide rod 702 are slidably arranged relative to each other. The longitudinal section of the guide rod 702 is an "I" shaped structure, and the guide rod 702 is symmetrically arranged about the central axis of the limiting block 701. After the device is used, by pulling the operating rod 704 to the rear, the operating rod 704 causes the limiting block 701 to move along the guide rod 702 to the rear and squeeze the damper 703. At this time, the limiting block 701 relaxes its limitation on the door closer 8, making it easier for the operator to remove the door closer 8 to the right for inspection and maintenance, thus improving the efficiency of the device's inspection and maintenance.
[0030] like Figure 1 , Figure 2 and Figure 4 As shown, the operating panel 14 is rotatably mounted relative to the second support frame 11, and the longitudinal section of the closing plate 15 on the left side of the operating panel 14 is a semi-circular structure. The fire door body 3 and the fireproof hinge 2 are rotatably mounted relative to each other, and the fireproof hinge 2 is symmetrically mounted about the central axis of the fire door body 3. During the use of the device, by rotating the fire door body 3, the fire door body 3 rotates and closes along the fireproof hinge 2. At the same time, by rotating the operating panel 14, the operating panel 14 rotates along the guide ring 16 and the suspension hinge 17, driving the closing plate 15 to close or open the opening of the ventilation port 18, thereby achieving ventilation or sealing and improving the efficiency of the device.
[0031] like Figure 1 , Figure 2 and Figure 3 As shown, a positioning ring 12 is provided on the right side of the second support frame 11, and a limiting rod 13 is provided on the right side of the positioning ring 12. The second support frame 11 and the positioning ring 12 are engaged with each other, and the limiting rod 13 is threadedly connected to both the positioning ring 12 and the second support frame 11. After the device is used, the limiting rod 13 is rotated to release its restriction on the second support frame 11 and the positioning ring 12, making it easier for the operator to pull the second support frame 11 to the right for cleaning and maintenance, reducing the maintenance and repair costs of the device and improving the device's performance.
[0032] The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art, the machinery, parts and equipment adopt conventional models in the prior art, the conventional connection mode in the prior art is adopted for circuit connection, and details are not described herein, and the contents not described in detail in the description belong to the prior art known by the person skilled in the art.
[0033] Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement and the like within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A marine fire door that is easy to maintain and repair, comprising: The door frame (1) and the fire door body (3) disposed inside the door frame (1) are characterized in that they further include: A fireproof hinge (2) is installed on the rear side of the fireproof door body (3), and a fireproof rubber strip (4) is provided on the outer side of the fireproof door body (3). A door lock (5) is provided at the front end of the fireproof door body (3), and a first support frame (6) is provided on the upper side of the fireproof door body (3). A limit component (7) is provided on the rear side of the first support frame (6), and a door closer (8) is provided on the right side of the first support frame (6). A fireproof core (9) is provided inside the fireproof door body (3). Furthermore, a fireproof plate (10) is provided on the outside of the fireproof core (9), a second support frame (11) is provided in the middle of the fireproof door body (3), and an operating panel (14) is provided inside the second support frame (11). A closing plate (15) is provided on the left side of the operating panel (14), and a guide ring (16) is provided on the left side of the closing plate (15). A hovering hinge (17) is provided on the outside of the guide ring (16), and a ventilation opening (18) is provided on the upper side of the hovering hinge (17).
2. The marine fire door that is easy to maintain and repair according to claim 1, characterized in that: The limiting component (7) includes a limiting block (701) installed on the rear side of the first support frame (6), and a guide rod (702) is provided on the outer side of the limiting block (701), and a damper (703) is provided on the rear side of the limiting block (701), and an operating rod (704) is provided on the inner side of the damper (703).
3. A marine fire door that is easy to maintain and repair according to claim 2, characterized in that: The limiting block (701) is engaged with the door closer (8), and the limiting block (701) is slidably disposed with respect to the guide rod (702).
4. A marine fire door that is easy to maintain and repair according to claim 2, characterized in that: The longitudinal section of the guide rod (702) is an "I" shaped structure, and the guide rod (702) is symmetrically arranged about the central axis of the limiting block (701).
5. A marine fire door that is easy to maintain and repair according to claim 1, characterized in that: The operating panel (14) is rotatably arranged relative to the second support frame (11), and the longitudinal section of the closed plate (15) arranged on the left side of the operating panel (14) is a semi-circular structure.
6. A marine fire door that is easy to maintain and repair according to claim 1, characterized in that: The fire door body (3) and the fireproof hinge (2) are arranged to rotate relative to each other, and the fireproof hinge (2) is arranged symmetrically about the central axis of the fire door body (3).
7. A marine fire door that is easy to maintain and repair according to claim 1, characterized in that: The second support frame (11) is provided with a positioning ring (12) on the right side, and a limit rod (13) is provided on the right side of the positioning ring (12).
8. A marine fire door that is easy to maintain and repair according to claim 7, characterized in that: The second support frame (11) is engaged with the positioning ring (12), and the limiting rod (13) is threadedly connected to the positioning ring (12) and the second support frame (11).
Citation Information
Patent Citations
Marine fireproof door
CN210768482U