A control device for a ship fire door and a ship fire door

Abstract

The application relates to the technical field of automatic control of ships, in particular to a control device of a ship fire door and the ship fire door. The control device of the ship fire door comprises a door frame, a fire door, a door closer, an adjustable hinge magnetic attraction device, a door magnet, a fire alarm device and a controller. The adjustable hinge magnetic attraction device comprises a hinge, an adjustable hinge storage box and an armature; one end of the hinge is connected with the adjustable hinge storage box, the hinge is stored in the adjustable hinge storage box through winding, and the other end of the hinge is fixedly connected with the armature; the door magnet is arranged on a wall surface near the fire door, the position of the door magnet matches that of the armature; the fire alarm device is in communication connection with the door magnet; and the controller is in communication connection with the door magnet and the fire alarm device. The scheme can realize daily convenient door opening, emergency reliable door closing, real-time state monitoring and adaptation to the ship environment, thereby guaranteeing the fire safety of the ship and improving the passing efficiency of the crew.

Description

Technical Field

[0001] This application relates to the field of ship automatic control technology, and in particular to a control device for a ship fire door and a ship fire door. Background Technology

[0002] Fire doors in the living and working areas of ships must meet the fire protection requirements of the International Convention for the Safety of Life at Sea (SOLAS). Existing devices generally adopt a "door closer + single door catch" structure: in order to ensure fireproof sealing, the door closer needs to be set with strong closing parameters, which means that crew members need to exert a large pushing force to open the door every day, which seriously affects the passage efficiency; and the door catch relies on a single signal from the fire alarm system to trigger power cut-off. If the fire alarm system fails, such as sensor failure or loose wiring, emergency door closing cannot be achieved, which poses a risk of fire spreading.

[0003] In addition, ships are exposed to special environments such as continuous vibration, high humidity and salt spray corrosion during navigation. Existing door magnets are prone to falling off due to vibration and metal parts are prone to corrosion, which reduces the reliability of the door catches. At the same time, the lack of real-time feedback function for door status means that crew members cannot remotely confirm the opening and closing status of fire doors, which is not conducive to ship safety management.

[0004] In summary, the technical problems of inconvenience in daily use, insufficient redundancy in emergency triggering, poor environmental adaptability, and uncontrollable state in the relevant technologies need to be improved. Utility Model Content

[0005] The main objective of this application is to provide a control device and a fire door for ships, which can enable convenient opening in daily life, reliable closing in emergencies, real-time status monitoring, and adaptation to the ship environment, thereby improving crew passage efficiency while ensuring ship fire safety.

[0006] To achieve the above objectives, one aspect of this application provides a control device for a ship's fire door, the control device comprising: Door frame; A fire door, one side of which is fixedly connected to the door frame; A door closer is provided above the fire door, with one end of the door closer connected to the door frame and the other end of the door closer connected to the fire door. An adjustable hinge magnetic attraction device includes a hinge, an adjustable hinge storage box, and an armature; one end of the hinge is connected to the adjustable hinge storage box, and the hinge is stored inside the adjustable hinge storage box by winding; the other end of the hinge is fixedly connected to the armature. A door magnet is disposed on the wall near the fire door, and the position of the door magnet matches that of the armature; A fire alarm device, wherein the fire alarm device is communicatively connected to the door magnet; The controller is communicatively connected to the door magnet and the fire alarm device.

[0007] In some embodiments, a limiting locking device is also included; The limiting locking device is fixed above the fire door; The hinge passes through the limiting locking device and is fixedly connected to the armature.

[0008] In some embodiments, the limiting locking device is at the same height as the adjustable hinge storage box.

[0009] In some embodiments, the door magnet is wired to the fire alarm device.

[0010] In some embodiments, a door status sensor is also included; The door status sensor is communicatively connected to the controller.

[0011] In some embodiments, a temperature sensor is also included; The temperature sensor is communicatively connected to the controller.

[0012] In some embodiments, a manual control switch is also included; The manual control switch is located on the wall near the door frame, and is communicatively connected to both the door magnet and the controller.

[0013] In some embodiments, a status indication device is also included; The status indicator device includes a first indicator component, a second indicator component, and a third indicator component; the status indicator device is communicatively connected to the controller.

[0014] In some embodiments, the door frame, the fire door, the door closer, the adjustable hinge magnetic device, the door magnet, and the fire alarm device are all provided with an anti-corrosion layer on their outer surfaces.

[0015] To achieve the above objectives, another aspect of the embodiments of this application proposes a ship fire door, which includes the control device for the ship fire door described above.

[0016] The embodiments of this application include at least the following beneficial effects: This application provides a control device for a ship fire door and a ship fire door. This solution integrates key components such as a door frame, fire door, door closer, adjustable hinge magnetic attraction device, door magnet, and fire alarm device, achieving the dual value of convenient passage and reliable protection. The door frame and fire door form the core fire barrier, effectively blocking the spread of fire and toxic fumes. Adjustable hinges ensure flexible door opening, meeting the convenient needs of daily personnel passage, while the door closer automatically drives the door to close after opening, preventing accidental forgetting to close the door and creating safety hazards. The adjustable hinge magnetic attraction device works in conjunction with the door magnet, allowing the door to remain open under normal circumstances to improve passage efficiency, and quickly releasing in case of fire to work with the door closer for reliable closure, ensuring a tight seal. The accompanying fire alarm device can monitor the door status in real time. Once the door is abnormally opened or a fire occurs, it can promptly issue an alarm and trigger relevant protective equipment. This not only ensures the convenience of daily use but also, through the coordinated action of all components, forms a complete protection system that features flexible opening, automatic closing, strict fire prevention, and real-time monitoring, maximizing the protection of crew members' lives and property. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the control device for the ship fire door provided in the embodiments of this application; Figure 2 This is a schematic diagram of a door closer. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit it. In the following description, when referring to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with those of this application; they are merely examples of apparatuses and methods consistent with some aspects of the embodiments of this application as detailed in the appended claims.

[0019] It is understood that the terms “first,” “second,” etc., used in this application may be used herein to describe various concepts, but unless otherwise stated, these concepts are not limited by these terms. These terms are only used to distinguish one concept from another. For example, without departing from the scope of the embodiments of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the words “if,” “when,” or “in response to a determination” as used herein may be interpreted as “when…” or “when…” or “in response to a determination.”

[0020] As used in this application, the terms "at least one", "multiple", "each", "any", etc., "at least one" includes one, two or more, "multiple" includes two or more, "each" refers to each of the corresponding multiples, and "any" refers to any one of the multiples.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing embodiments of this application only and is not intended to limit this application.

[0022] Before providing a detailed description of the embodiments of this application, some of the nouns and terms involved in the embodiments of this application will be explained first. The nouns and terms involved in the embodiments of this application are subject to the following interpretations.

[0023] Door status sensors typically consist of sensing units (such as electromagnetic, infrared, or Hall elements), signal processing modules, and output interfaces. Their core function is to determine the door's approach / closed state by detecting changes in the distance between the door and the door frame, or changes in energy fields such as magnetic fields or light beams.

[0024] Active normally closed signal: This type of signal relies on a controller or fire alarm device. Under normal conditions, the signal loop remains open, outputting a stable active signal, and the feedback device receives the normal signal. When the associated device detects an anomaly, the signal loop closes, and the active signal output stops.

[0025] Anti-corrosion layer: This structure is mostly a coating (such as anti-corrosion paint, zinc plating, fluorocarbon coating) or plating applied to the surface of metal components such as the fire door frame and hinges. Its function is to isolate the components from air, moisture, and corrosive media, slow down the oxidation and corrosion of the metal, extend the service life of the fire door's metal fittings, prevent door opening difficulties and sealing failures due to component corrosion, and ensure that the fire door maintains its complete fire resistance and structural stability for a long period.

[0026] Limiting and locking device: The structure consists of a hinge shaft, a limiting block, and a locking bolt or buckle, integrated on the connecting hinge. It is used to limit the hinge length by limiting the limiting block and the locking bolt can fix the hinge position to prevent the door from loosening and shifting. It can ensure that the door can be opened flexibly, stabilize the door structure, and prevent the door gap from widening and the fireproof seal from failing due to hinge displacement, thus taking into account both ease of use and fireproof reliability.

[0027] Figure 1 This is a schematic diagram of the control device for a ship's fire door provided in an embodiment of this application. The control device includes a door frame 110, a fire door 120, a door closer 200, an adjustable hinge magnetic attraction device, a door magnet 350, and a fire alarm device. One side of the fire door is fixedly connected to the door frame; as shown... Figure 2 As shown, Figure 2 This is a structural diagram of a door closer, which is installed above the fire door. One end of the door closer is connected to the door frame, and the other end is connected to the fire door. The adjustable hinge magnetic device includes a hinge 330, an adjustable hinge storage box 310, and an armature 340. One end of the hinge is connected to the adjustable hinge storage box, and the hinge is stored inside the adjustable hinge storage box by winding. The other end of the hinge is fixedly connected to the armature. The door magnet is installed on the wall near the fire door, and the position of the door magnet matches that of the armature. The fire alarm device is communicatively connected to the door magnet. The controller is communicatively connected to both the door magnet and the fire alarm device.

[0028] In some embodiments, the system further includes a limit locking device 320, a door status sensor 400, a temperature sensor, a manual control switch 600, and a status indicator 500. The limit locking device is fixed above the fire door; the hinge passes through the limit locking device and is fixedly connected to the armature. The limit locking device is at the same height as the adjustable hinge storage box to ensure the hinge receives the appropriate force direction and is evenly stressed. The door magnet is wired to the fire alarm device, allowing it to receive current and generate a strong magnetic force. The door status sensor communicates with the controller, sending real-time information on whether the door is open or closed to the controller for accurate decision-making. The temperature sensor communicates with the controller, enabling it to acquire the ambient temperature in real-time. The manual control switch is located on the wall near the door frame and communicates with both the door magnet and the controller. The door frame, fire door, door closer, adjustable hinge magnetic device, door magnet, and fire alarm device all have an anti-corrosion layer on their outer surfaces.

[0029] In some embodiments, under normal conditions without a fire, the fire alarm system continuously outputs a 24V active normally closed signal to the door magnet, energizing it and generating a strong magnet. When crew members open the fire door, the adjustable hinge drives the waterproof armature to precisely engage with the door magnet. The hinge length can be flexibly adjusted according to the door thickness to accommodate different fire door specifications, ensuring the stability of the engagement between the armature and the door magnet. This allows the door magnet to hold the armature in place, keeping the fire door open. This satisfies the crew's daily passage needs, avoiding the inconvenience of frequent door opening and closing, and does not disrupt normal operational procedures within the ship. Simultaneously, the door status sensor transmits the "open" signal to the ship's central control system in real time via the controller. The first indicator component in the status indicator device, including an illuminated green indicator light, activates, allowing central control personnel to intuitively grasp the current status of the fire door and achieve dynamic monitoring of the door. This ensures that the use of the fire door is both convenient and controllable under normal conditions.

[0030] In the event of a fire emergency, a dual triggering mechanism ensures the reliable closure of fire doors, including a main triggering mechanism and a redundant triggering mechanism. The main triggering mechanism works as follows: once the fire alarm system detects a fire and triggers the alarm, it simultaneously disconnects the 24V active normally closed signal contact, de-energizing the door magnet. The armature then disengages from the door magnet, and the vibration-resistant, high-strength door closer quickly drives the fire door to close automatically, rapidly forming a fireproof and smoke-proof barrier to prevent the spread of fire and toxic fumes inside the ship. The redundant triggering mechanism works as follows: If the fire alarm system malfunctions and cannot be triggered normally, when the temperature sensor detects that the ambient temperature has reached or exceeded the threshold temperature (including 68°C), which can be flexibly set by the central control system according to the fire protection needs of different areas of the ship, a power-off signal will be automatically output to the door magnet to force the door to close, thus avoiding the safety hazard of the fire door not being able to close due to a single system failure. After the fire door is closed, the door status sensor will immediately upload the "closed" signal to the controller, and the second indicator component in the status indicator device will operate. The second indicator component includes a red status indicator light, allowing the central control personnel to confirm in real time that the door is in an effective fire protection state. The "dual trigger redundancy" design greatly improves the reliability of the fire door in emergency fire situations, buying valuable time for crew evacuation and ship fire prevention, and minimizing the loss of life and property caused by the fire.

[0031] In local manual control mode, a manual control switch with anti-accidental touch locking function is installed next to the door magnet and connected to the status indicator device. The anti-accidental touch locking design can effectively prevent crew members from accidentally closing the fire door during daily operations. In special circumstances, such as fire drills or when a part of the fire door malfunctions and requires temporary control of the door status, the crew can first unlock the manual control switch and then press the power-off button. At this time, the door magnet is de-energized, and the fire door closes under the action of the door closer. At the same time, the third indicator component of the status indicator device is activated. The third indicator component includes a yellow indicator light, which is clearly different from the color of the indicator light in the second indicator component in the fire emergency situation, making it easy for on-site personnel to quickly identify the reason for the door closing and avoid misjudging the fire situation. In addition, the relevant signals of manual operation are simultaneously uploaded to the ship's controller. The controller automatically records the operator information and operation time, providing clear data support for subsequent equipment management, fault tracing, and drill review. This not only ensures the flexibility of fire door control in special scenarios but also achieves the traceability of the operation process, further improving the management mechanism of the fire door system.

[0032] In some embodiments, the control device for the ship's fire door includes a vibration-resistant, high-strength door closer strategically positioned at the top of the fire door near the hinge to ensure stable door closure after opening. A door magnet is fixed to the corresponding position on the door frame, while a waterproof armature is mounted on the door via an adjustable hinge. Adjusting the hinge length ensures the gap between the armature and the door magnet is less than or equal to 0.5mm, guaranteeing a tight seal. A temperature sensor is installed on the upper outer side of the door, away from heat sources, to accurately capture ambient temperature changes. A local manual switch is located 1.5m above the door frame, ergonomically designed for easy operation by crew members. Regarding parameter settings, the temperature sensor threshold can be flexibly adjusted from a default of 68℃ to 50-80℃ using the ship's central control system, adapting to different temperature monitoring needs. The door status sensor upload frequency is set to once every 30 seconds by default, with real-time uploads in emergency situations, ensuring the controller can receive the fire door's status in real time.

[0033] During testing and verification, in daily use, the door magnets reliably engage when crew members open the door, with an opening force of less than or equal to 50N, balancing ease of operation and ergonomic requirements. In fire simulation scenarios, whether the fire alarm system is triggered or the temperature sensor is heated to 68°C, the door magnets de-energize rapidly within 3 seconds, and the powerful door closer immediately drives the door to close. After closing, the door gap is less than or equal to 3mm, fully complying with the fire-resistant sealing standards of the SOLAS Convention. All components with anti-corrosion layers remained functional after 1000 hours of salt spray testing and 50Hz vibration testing, showing no signs of rust or loosening, adapting to the unique humid and vibrating environment of ships. Overall, the control device for the ship's fire door meets the crew's needs for convenient opening and stable passage in daily life, while also responding quickly and reliably closing the door in the event of a fire, effectively preventing the spread of fire and smoke. Furthermore, real-time status updates and environmental tolerance tests ensure long-term stable operation in the complex environment of ships, providing comprehensive protection for ship fire safety.

[0034] To achieve the above objectives, another aspect of the embodiments of this application proposes a ship fire door, which includes a control device for the front of the ship fire door.

[0035] The embodiments described in this application are for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided by the embodiments of this application. As those skilled in the art will know, with the evolution of technology and the emergence of new application scenarios, the technical solutions provided by the embodiments of this application are also applicable to similar technical problems.

[0036] Those skilled in the art will understand that the technical solutions shown in the figures do not constitute a limitation on the embodiments of this application, and may include more or fewer steps than shown, or combine certain steps, or different steps.

[0037] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs.

[0038] It should be understood that the data used in this way can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in a sequence other than those illustrated or described herein. Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such process, method, product, or apparatus.

[0039] It should be understood that in this application, "at least one (item)" means one or more, and "more than" means two or more. "And / or" is used to describe the relationship between related objects, indicating that three relationships can exist. For example, "A and / or B" can represent three cases: only A exists, only B exists, and both A and B exist simultaneously, where A and B can be singular or plural. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "At least one (item) of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one (item) of a, b, or c can represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, and c can be single or multiple.

[0040] The preferred embodiments of the present application have been described above with reference to the accompanying drawings, but this does not limit the scope of the claims of the present application. Any modifications, equivalent substitutions, and improvements made by those skilled in the art without departing from the scope and substance of the embodiments of the present application shall be within the scope of the claims of the present application.

Claims

1. A control device for a ship's fire door, characterized in that, The control device for the ship's fire door includes: Door frame; A fire door, one side of which is fixedly connected to the door frame; A door closer is provided above the fire door, with one end of the door closer connected to the door frame and the other end of the door closer connected to the fire door. An adjustable hinge magnetic attraction device includes a hinge, an adjustable hinge storage box, and an armature; one end of the hinge is connected to the adjustable hinge storage box, and the hinge is stored inside the adjustable hinge storage box by winding; the other end of the hinge is fixedly connected to the armature. A door magnet is disposed on the wall near the fire door, and the position of the door magnet matches that of the armature; A fire alarm device, wherein the fire alarm device is communicatively connected to the door magnet; The controller is communicatively connected to the door magnet and the fire alarm device.

2. The control device for a ship fire door according to claim 1, characterized in that, It also includes a limit locking device; The limiting locking device is fixed above the fire door; The hinge passes through the limiting locking device and is fixedly connected to the armature.

3. The control device for a ship's fireproof door according to claim 2, characterized in that, The limiting locking device has the same height as the adjustable hinge storage box.

4. The control device for a ship's fire door according to claim 1, characterized in that, The door magnet is wired to the fire alarm device.

5. The control device for a ship's fireproof door according to claim 1, characterized in that, It also includes a door status sensor; The door status sensor is communicatively connected to the controller.

6. The control device for a ship's fire door according to claim 1, characterized in that, It also includes a temperature sensor; The temperature sensor is communicatively connected to the controller.

7. The control device for a ship's fire door according to claim 1, characterized in that, It also includes a manual control switch; The manual control switch is located on the wall near the door frame, and is communicatively connected to both the door magnet and the controller.

8. The control device for a ship's fire door according to claim 1, characterized in that, It also includes a status indicator device; The status indicator device includes a first indicator component, a second indicator component, and a third indicator component; the status indicator device is communicatively connected to the controller.

9. A control device for a ship's fire door according to claim 1, characterized in that, The door frame, the fire door, the door closer, the adjustable hinge magnetic device, the door magnet, and the fire alarm device all have an anti-corrosion layer on their outer surfaces.

10. A fireproof door for ships, characterized in that, The ship fire door includes a control device for a ship fire door as described in any one of claims 1-9.

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