Marine fireproof door control system

Abstract

The utility model provides a marine fireproof door control system. The marine fireproof door control system comprises a fireproof door; the electromagnetic door stopper assembly comprises a mounting seat, an inserting rod, an electromagnet and a door stopper rod, the inserting rod is mounted on one side of the fireproof door, a first accommodating hole is formed in the top surface of the inserting rod, an inserting groove allowing the inserting rod to be inserted is formed in one side of the mounting seat, a positioning hole is formed in the mounting seat, one end of the positioning hole is communicated with the inserting groove, and the other end of the positioning hole penetrates to the top surface of the mounting seat; the electromagnet is arranged above the positioning hole, the door stopper rod is inserted into the first containing hole in a sliding mode, and the door stopper rod can partially stretch into the positioning hole under the magnetic attraction effect of the electromagnet. According to the marine fireproof door control system, the magnetic attraction force needed by the electromagnetic door suction assembly when the fireproof door is kept in the normally-open state is reduced, the electricity consumption of the electromagnetic door suction assembly is reduced, and therefore the operation cost of the marine fireproof door control system is reduced.

Description

Technical Field

[0001] This utility model generally relates to the field of marine technology, and specifically to a marine fire door control system. Background Technology

[0002] In the ship's onboard areas, each stairwell is equipped with a fire door leading to the respective living decks. These fire doors are fitted with mechanical spring-loaded door closers. The ship also has a fire door control system, which includes a control console and electromagnetic door catch assemblies installed on each fire door. The electromagnets of these assemblies are mounted on the wall, and the catch plates are attached to the fire doors. Normally, the fire doors are open, in which case the electromagnets are continuously energized, and the electromagnets magnetically attract the catch plates, keeping the fire doors open. In the event of a fire or other emergency, the fire door control system de-energizes the electromagnets, causing the fire doors to automatically close under the action of the door closers, preventing the spread of fire.

[0003] Because fire doors are heavy and require strong door closers to close, electromagnets are typically used. This results in a strong magnetic attraction between the electromagnet and the fire door, leading to higher energy consumption and increased operating costs for the ship's fire protection system. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a marine fire door control system.

[0005] This application provides a marine fire door control system, including:

[0006] Fire doors;

[0007] An electromagnetic door catch assembly includes a mounting base, a plug rod, an electromagnet, and a door catch rod. The plug rod is installed on one side of a fire door and extends away from the fire door. The top surface of the plug rod has a first receiving hole. One side of the mounting base has a slot for inserting the plug rod. The mounting base has a positioning hole, one end of which communicates with the slot and the other end extends through to the top surface of the mounting base. The electromagnet is positioned above the positioning hole. The door catch rod is slidably inserted into the first receiving hole. The length of the door catch rod is greater than the length of the positioning hole, wherein the door catch rod can partially extend into the positioning hole under the magnetic attraction of the electromagnet.

[0008] Furthermore, the slot is provided with a stop surface, which is used to stop and engage with the insertion rod in the insertion direction, wherein when the stop surface and the insertion rod are engaged, the positioning hole is aligned with the first receiving hole.

[0009] Furthermore, it also includes a position detection sensor and a controller. The mounting base has a mounting hole that communicates with the slot. The mounting hole is located near the stop surface. The position detection sensor is located in the mounting hole. Both the position detection sensor and the electromagnet are connected to the controller.

[0010] Furthermore, it also includes an elastic element, which is disposed in the first receiving hole, with one end of the elastic element connected to the door suction rod and the other end connected to the mounting base.

[0011] Furthermore, the door catch rod is provided with an vent hole that extends through the door along the axial direction.

[0012] The marine fire door control system provided in this application has a plug rod on the fire door and a mounting base installed on the wall. A door catch rod is slidably inserted into the first receiving hole of the plug rod. The mounting base has a slot and a positioning hole, and an electromagnet is provided above the positioning hole. The electromagnet uses magnetic attraction to drive the door catch rod in and out of the positioning hole to keep the fire door in a normally open state. This reduces the magnetic attraction force required by the electromagnetic door catch assembly to keep the fire door in a normally open state, reduces the power consumption of the electromagnetic door catch assembly, and thus reduces the operating cost of the marine fire protection system. Attached Figure Description

[0013] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0014] Figure 1 This is a schematic diagram of the electromagnetic door catch assembly provided in an embodiment of this application. Detailed Implementation

[0015] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0016] This application provides a control system for a marine fire door 100, including a fire door 100 and an electromagnetic door catch assembly. The electromagnetic door catch assembly is installed on the fire door 100 and the wall 200, wherein a spring-loaded door closer is installed between the fire door 100 and the door frame.

[0017] Please refer to the attached document. Figure 1The electromagnetic door catch assembly includes a mounting base 310, a plug rod 320, an electromagnet 330, and a door catch bar 340. The plug rod 320 is installed on one side of the fire door 100, specifically on the back side of the fire door 100, and extends in a direction away from the fire door 100. The top surface of the plug rod 320 has a first receiving hole 321, which is a straight hole. One side of the mounting base 310 has a slot 311 for inserting the plug rod 320. The mounting base 310 also has a positioning hole 313, which is a straight hole. One end of the positioning hole 313 communicates with the slot 311, and the other end extends through to the top surface of the mounting base 310. The electromagnet 330 is positioned above the positioning hole 313. The door catch rod 340 is slidably inserted into the first receiving hole 321. The length of the door catch rod 340 is greater than the length of the positioning hole 313, and the diameters of both the first receiving hole 321 and the positioning hole 313 are greater than the diameter of the door catch rod. The door catch rod 340 is made of ferromagnetic material and can be attracted by the electromagnet 330. Specifically, under the magnetic attraction of the electromagnet 330, the door catch rod 340 can partially extend into the positioning hole 313. When the fire door 100 is in the open state, the insert rod 320 is inserted into the slot 311, and the positioning hole 313 and the first receiving hole 321 are positioned opposite each other. The energized electromagnet 330 attracts the door catch rod 340 so that the door catch rod 340 enters the positioning hole 313 (at this time, the door catch rod 340 is partially located in the first receiving hole 321 and partially located in the positioning hole 313). The door catch rod 340 fixes the insert rod 320 in the slot 311, so that the fire door 100 is in the normally open state. In addition, after the electromagnet 330 is de-energized, the door suction rod 340 exits the positioning hole 313 under its own weight and other forces, so that the fire door 100 can be automatically closed under the drive of the door closer.

[0018] In this embodiment, the magnetic attraction force of the electromagnet 330 in maintaining the fire door 100 in the normally open state only needs to be greater than the weight of the door catch rod 340 to drive the door catch rod 340 into the positioning hole 313. The weight of the door catch rod 340 is less than the pulling force of the door closer, which reduces the magnetic attraction force required by the electromagnetic door catch assembly to maintain the fire door 100 in the normally open state, thereby reducing the power consumption of the electromagnetic door catch assembly and thus reducing the operating cost of the ship's fire protection system.

[0019] Optionally, the surfaces of the positioning hole 313 and the first receiving hole 321, as well as the outer surface of the door catch rod 340, are all smoothly designed to reduce the moving resistance of the door catch rod 340 and lower the power consumption of the electromagnet 330. For example, the surface friction coefficients of the positioning hole 313, the first receiving hole 321, and the door catch rod 340 are all less than 0.2, and lubricant can be filled between the door catch rod 340 and the two holes. By setting a reasonably weighted door catch rod 340, the door catch rod 340 can automatically slide out of the positioning hole 313 by its own weight after the electromagnet 330 is de-energized.

[0020] In some embodiments of this application, the slot 311 is provided with a stop surface 312, which is used to stop and engage with the insertion rod 320 in the insertion direction. When the stop surface 312 and the insertion rod 320 are in stop engagement, the positioning hole 313 is aligned with the first receiving hole 321. That is, when the insertion rod 320 is fully inserted into the slot 311, the positioning hole 313 and the first receiving hole 321 are automatically aligned, making the alignment operation of the positioning hole 313 and the first receiving hole 321 simple and convenient.

[0021] Optionally, the slot 311 has a slot for the slot 311 to enter and exit, and the slot wall surface in the slot 311 opposite to the slot forms a stop surface 312 to simplify the structure.

[0022] In some embodiments of this application, a position detection sensor 360 and a controller are also included. The mounting base 310 has a mounting hole communicating with the slot 311, located near the stop surface 312. The position detection sensor 360 is disposed in the mounting hole, and both the position detection sensor 360 and the electromagnet 330 are connected to the controller. When the position detection sensor 360 detects the insertion rod 320, the controller controls the electromagnet 330 to power on; when the position detection sensor 360 does not detect the insertion rod 320, the controller controls the electromagnet 330 to power off. This configuration reduces the power-on downtime of the electromagnet 330, further saving energy.

[0023] In some embodiments of this application, the electromagnetic door catch assembly further includes an elastic element 350, which is disposed in the first receiving hole 321. One end of the elastic element 350 is connected to the door catch rod 340, and the other end is connected to the mounting base 310. When the door catch rod 340 is attracted upwards by the electromagnet 330, the elastic element 350 is in a pulled state. The pulling force applied to the door catch rod 340 by the elastic element 350 helps the door catch rod 340 to quickly exit the positioning hole 313 after the electromagnet 330 is de-energized. It should be understood that the magnetic attraction force of the electromagnet 330 when it magnetically attracts the door catch rod 340 is greater than the sum of the elastic force of the elastic element 350 on the door catch rod 340 and the weight of the door catch rod 340, and the sum of the elastic force of the elastic element 350 on the door catch rod 340 and the weight of the door catch rod 340 is less than the pulling force of the door closer.

[0024] Optionally, a second receiving hole 314 is provided on the bottom surface of the door suction rod 340. The second receiving hole 314 is used to receive the elastic element 350, which helps to reduce the thickness of the insertion rod 320.

[0025] Optionally, the elastic element 350 is a spring, and the bottom wall of the first receiving hole 321 and the top wall of the second receiving hole 314 are provided with hanging rings, and the two ends of the spring are respectively hung on the two hanging rings.

[0026] In some embodiments of this application, the door suction rod 340 is provided with an axially extending vent hole to reduce air resistance when the door suction rod 340 falls.

[0027] In some embodiments of this application, the ship is equipped with multiple fire doors 100, and each fire door 100 is fitted with an electromagnetic door catch assembly between itself and the wall 200. The controller of the ship's fire alarm system is connected to the controller of the fire door 100 control system to enable the fire alarm system to access the fire door 100 control system.

[0028] When a fire occurs on board, the fire alarm system sends a fire alarm signal to the fire door 100 control system via the controller. Upon receiving the fire alarm signal, the controller of the fire door 100 control system controls the fire door 100 to close, ensuring that the fire door 100 can be automatically closed at the first moment of a fire, thus ensuring the safety of the crew.

[0029] It should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" used above to indicate orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means three or more.

[0030] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A marine fire door control system, characterized in that, The application relates to a fireproof door and a magnetic door stopper assembly thereof. The magnetic door stopper assembly comprises a mounting base, a plug rod, a magnet and a door stopper rod, the plug rod is arranged on one side of the fireproof door and extends away from the fireproof door, a top surface of the plug rod is provided with a first accommodating hole, one side of the mounting base is provided with a plug groove for the plug rod, the mounting base is provided with a positioning hole, one end of the positioning hole is communicated with the plug groove and the other end penetrates through a top surface of the mounting base, the magnet is arranged above the positioning hole, the door stopper rod is slidingly arranged in the first accommodating hole, and the length of the door stopper rod is greater than the length of the positioning hole, wherein the door stopper rod can partially extend into the positioning hole under the magnetic attraction of the magnet. The plug groove is provided with a stop surface for stop cooperation with the plug rod in the plug direction, and the positioning hole is arranged in alignment with the first accommodating hole when the stop surface and the plug rod are stop cooperated.

2. The marine fire door control system of claim 1, wherein, The mounting base is provided with a mounting hole communicated with the plug groove, the mounting hole is arranged close to the stop surface, a position detection sensor is arranged in the mounting hole, the position detection sensor and the magnet are connected with a controller.

3. A marine fire door control system according to claim 2, characterised in that, An elastic member is arranged in the first accommodating hole, one end of the elastic member is connected with the door stopper rod and the other end is connected with the mounting base.

4. The marine fire door control system of claim 1, wherein, The door stopper rod is provided with an exhaust hole penetratingly arranged in the axial direction.

5. A marine fire door control system according to any one of claims 1 to 4, wherein, ​

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