Multi-stage interconnected device based on marine fire alarm controller and control method

Abstract

The application discloses a multi-stage interconnection connecting device based on a marine fire alarm controller and a control method, and relates to the technical field of ship equipment. The multi-stage interconnection connecting device based on the marine fire alarm controller and the control method are characterized in that a buffer mechanism is arranged on the side of the wire drum that is far away from the external thread, each wire of the marine fire alarm controller is connected through a line connection auxiliary mechanism, the wires can be arranged in an orderly manner, the distribution of the wires is prevented from being disorderly, the subsequent wire maintenance work is facilitated, a plurality of clamping pieces are extruded by the conical sleeve, the wires are clamped, the wires are prevented from shaking, the wires are not prone to falling off, the wires are stably connected, the wires are S-shapedly wound on the first guide wheel and the second guide wheel, when the wires are subjected to external force pulling, the spring elastic force is utilized to play a buffering role, the wires are prevented from being broken due to external rigid pulling, and the marine fire alarm controller is favorably and stably operated.

Description

Technical Field

[0001] This invention relates to the field of marine equipment technology, specifically to a multi-level interconnection device and control method based on a marine fire alarm controller. Background Technology

[0002] Marine fire alarm controllers are the heart of automatic fire alarm systems. They power detectors, receive fire signals, and activate fire alarm devices. This equipment can also indicate the location of the fire and record relevant information; it can activate fire alarm signals via fire alarm transmitters or automatic fire suppression systems via automatic fire extinguishing control devices, automatically monitor the system's proper operation, and provide audible and visual alarms for specific faults. With the development of the national marine industry and shipbuilding sector, fire monitoring on offshore platforms and ships is becoming increasingly important. Unlike on land, fires at sea can be extremely difficult to control, leading to significant losses for ships and offshore platforms. Therefore, marine fire alarm controllers are widely used on ships and offshore platforms. Marine fire alarm controllers typically require multi-level interconnection of multiple electronic devices. Currently, the most common method is to lay a bus, from which multiple ports are led out and connected to the electronic devices to meet the power supply and signal transmission needs of the multi-level electronic devices. However, the excessive wiring in marine fire alarm controllers leads to messy wiring distribution, making subsequent maintenance inconvenient. After the electronic device lines are connected to the bus ports, they cannot be stably fixed, which can easily lead to wire detachment and poor contact. In addition, under external force, the joints of the connected wires are prone to breakage and detachment, causing open circuits and making it impossible for the marine fire alarm controller to work stably. Therefore, this invention proposes a multi-level interconnection connection device and control method based on marine fire alarm controllers to solve the above problems. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a multi-level interconnection device and control method based on a marine fire alarm controller. This solves the problems of excessive wiring in marine fire alarm controllers, leading to messy wiring distribution, inconvenience for subsequent maintenance, unstable fixing of electronic equipment lines after connection to the bus port, easy wire detachment, poor contact, and easy breakage and disconnection of connectors under external force, resulting in open circuits and unstable operation of the marine fire alarm controller.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a multi-level interconnection device based on a marine fire alarm controller, comprising a fire alarm controller body and a first bus fixedly connected to the side wall of the fire alarm controller body. A line connection protection box is provided at the end of the first bus away from the fire alarm controller body. The line connection protection box includes a cover plate and a mounting base. The cover plate is detachably mounted on the top of the mounting base by bolts. A wiring board is fixedly mounted on the top of the mounting base. Multiple waterproof mechanisms are uniformly fixedly arranged on the side wall of the wiring board away from the fire alarm controller body. A second bus connected to the first bus is fixedly arranged inside the wiring board. Multiple branch lines are uniformly fixedly arranged on the side wall of the second bus. One end of each branch line is connected to one of the waterproof mechanisms. A line connection auxiliary mechanism is uniformly arranged on the top of the mounting base and on one side of the waterproof mechanism.

[0005] The line connection auxiliary mechanism includes a spool and an external thread on the outer wall of the spool. Multiple clamping plates are evenly fixed at one end of the spool. An adjustment mechanism for adjusting the opening angle of the clamping plates is sleeved on the outer wall of the spool. The adjustment mechanism includes a conical sleeve, an annular sleeve, and a second threaded sleeve. The conical sleeve is slidably sleeved on the outer wall of the spool. The annular sleeve is fixedly connected to one end of the conical sleeve. The second threaded sleeve is rotatably sleeved on the outer wall of the conical sleeve. The second threaded sleeve and the external thread are threadedly connected. A buffer mechanism is provided on the side of the spool away from the external thread.

[0006] The fire alarm controller body is equipped with a fire alarm control system, which includes a fire processor, a lithium battery pack, a data processing unit, a fire detector, an alarm sending unit, a log generation unit, an audible and visual alarm unit, and a human-machine interaction system. The output terminals of the lithium battery pack and the data processing unit are connected to the input terminal of the fire processor. The output terminal of the fire detector is connected to the input terminal of the data processing unit. The fire processor and the human-machine interaction system are bidirectionally connected. The output terminal of the fire processor is connected to the input terminals of the alarm sending unit, the log generation unit, and the audible and visual alarm unit, respectively.

[0007] Preferably, the spool is fixedly mounted on the top of the mounting base by a bracket, and a rubber protective pad is fixedly provided on the inner wall of the clamping plate to protect the wire.

[0008] Preferably, the buffer mechanism includes a guide sleeve and a first clamping arm mechanism and a second clamping arm mechanism disposed on both sides of the guide sleeve. The first clamping arm mechanism includes a first clamping arm, a first square sleeve, a first guide wheel, a spring, and a first arc-shaped clamping block. The first square sleeve is fixedly disposed at one end of the first clamping arm. A first wheel frame is fixedly disposed on the side wall of the first square sleeve. The first guide wheel is rotatably disposed inside the first wheel frame. The spring is fixedly disposed on the side wall of the first square sleeve.

[0009] Preferably, the second clamping arm mechanism includes a second clamping arm, a second square sleeve, a second guide wheel, and a second arc-shaped clamping block. The second square sleeve is fixedly disposed at one end of the second clamping arm. A second wheel frame is fixedly disposed on the side wall of the second square sleeve. The second guide wheel is rotatably disposed inside the second wheel frame. The second arc-shaped clamping block is fixedly disposed on the side wall of the second clamping arm near the first arc-shaped clamping block.

[0010] Preferably, the second square sleeve is rotatably disposed inside the first square sleeve via a rotating shaft, one end of which is rotatably disposed on the inner wall of the tubing, and the guide sleeve is fixedly disposed on the outer wall of the tubing via a support arm.

[0011] Preferably, the waterproof mechanism includes a cylindrical body, with an upper conductor block and a lower conductor block respectively arranged on the upper and lower sides of the inner cavity of the cylindrical body. A bolt is rotatably connected to the top of the upper conductor block, and the top of the bolt passes through the cylindrical body and extends to the outside. A first threaded sleeve is threaded on the outer wall of the cylindrical body. A rubber sheet is fixedly arranged on the inner wall of the end of the first threaded sleeve away from the cylindrical body. A circular hole is opened in the center of the rubber sheet, and a rubber ring is fixedly arranged inside the circular hole.

[0012] Preferably, the cylinder is fixedly mounted on the side wall of the wiring board, and the lower conductor block is connected to one of the branch lines.

[0013] Preferably, the fire detector includes a smoke alarm and an open flame detector.

[0014] This invention also provides a control method for multi-level interconnected devices based on a marine fire alarm controller, the specific method including the following steps:

[0015] Step 1: When the fire detector detects a fire, it sends a smoke or open flame signal to the data processing unit. The data processing unit converts the smoke or open flame signal into an electrical signal and sends it to the fire processor for judgment and processing.

[0016] Step 2: After receiving the fire information, the fire processor issues an alarm through the audible and visual alarm unit and sends fire rescue information to the fire department through the alarm sending unit.

[0017] Step 3: After the fire is extinguished, staff can send a fire suppression command to the fire processor through the human-machine interface system, and the fire processor will control the audible and visual alarm unit to stop the alarm.

[0018] Preferably, the alarm sending unit includes a wireless WIFI module and an alarm information generation module, and the sound and light alarm unit includes a buzzer and a flashlight, with each of the buzzer and flashlight having its own independent power supply.

[0019] Beneficial effects

[0020] This invention provides a multi-level interconnection device and control method based on a marine fire alarm controller. Compared with the prior art, it has the following advantages:

[0021] 1. A multi-level interconnection device and control method based on a marine fire alarm controller, comprising a cable reel and an external thread on the outer wall of the cable reel. Multiple clamping plates are evenly fixed at one end of the cable reel. An adjustment mechanism for adjusting the opening angle of the clamping plates is sleeved on the outer wall of the cable reel. The adjustment mechanism includes a conical sleeve, an annular sleeve, and a second threaded sleeve. The conical sleeve is slidably sleeved on the outer wall of the cable reel, the annular sleeve is fixedly connected to one end of the conical sleeve, and the second threaded sleeve is rotatably sleeved on the outer wall of the conical sleeve. The second threaded sleeve and the external thread are threadedly connected. A buffer mechanism is provided on the side of the cable reel away from the external thread. This allows each wire of the marine fire alarm controller to be connected through a single cable connection auxiliary mechanism, ensuring neat wire arrangement and preventing messy wiring distribution. This facilitates subsequent wiring maintenance. After the electronic equipment wiring is connected to the bus port, the conical sleeve can press against the multiple clamping plates, clamping the wiring tightly to prevent shaking and detachment, ensuring stable wiring connection.

[0022] 2. A multi-level interconnection device and control method based on a marine fire alarm controller, using a buffer mechanism including a guide sleeve and a first clamping arm mechanism and a second clamping arm mechanism disposed on both sides of the guide sleeve. The first clamping arm mechanism includes a second clamping arm, a first square sleeve, a first guide wheel, a spring, and a first arc-shaped clamping block. The first square sleeve is fixedly disposed at one end of the second clamping arm. A first wheel frame is fixedly disposed on the side wall of the first square sleeve. The first guide wheel is rotatably disposed inside the first wheel frame. The spring is fixedly disposed on the side wall of the first square sleeve. A wire is wound in an S-shape around the first guide wheel and the second guide wheel, so that when the wire is subjected to external pulling force, the first guide wheel and the second guide wheel can move closer to each other, and the wire reserved between them is pulled out. The spring force plays a buffering role, avoiding the wire from breaking due to external rigid pulling, which is conducive to the stable operation of the marine fire alarm controller.

[0023] 3. A multi-level interconnection device and control method based on a marine fire alarm controller, wherein the first guide wheel and the second guide wheel approach each other while the first arc-shaped clamping block and the second arc-shaped clamping block simultaneously clamp the wire, thereby preventing the wire joint position from being affected by external force and thus improving the stability of the wire connection.

[0024] 4. A multi-level interconnection device and control method based on a marine fire alarm controller, comprising a waterproof mechanism including a cylinder. An upper conductor block and a lower conductor block are respectively installed on the upper and lower sides of the cylinder cavity. A bolt is rotatably connected to the top of the upper conductor block, with the bolt tip penetrating the cylinder and extending to the outside. A first threaded sleeve is threaded onto the outer wall of the cylinder. A rubber sheet is fixedly installed on the inner wall of the end of the first threaded sleeve away from the cylinder. A circular hole is opened at the center of the rubber sheet, and a rubber ring is fixedly installed inside the circular hole. Utilizing the elastic deformation characteristics of the rubber sheet and rubber ring, the rubber ring can tightly wrap the insulation layer of the wire while the wire passes through it, making it suitable for connecting wires of various outer diameters. Simultaneously, a sealed space is formed between the threaded sleeve and the cylinder, preventing external moisture from entering the joint and causing a short circuit, while also preventing moisture corrosion of the wire joint and extending its service life. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of the entire invention;

[0026] Figure 2 This is a schematic diagram of the exploded three-dimensional structure of the present invention;

[0027] Figure 3 This is an enlarged structural diagram of part A of the present invention;

[0028] Figure 4 This is an exploded three-dimensional structural diagram of the circuit connection auxiliary mechanism of the present invention;

[0029] Figure 5 This is a schematic diagram of the overall three-dimensional structure of the circuit connection auxiliary mechanism of the present invention;

[0030] Figure 6 This is an enlarged structural diagram of part B of the present invention;

[0031] Figure 7 This is an enlarged structural diagram of part C of the present invention;

[0032] Figure 8 This is a schematic diagram of the exploded three-dimensional structure of the buffer mechanism of the present invention;

[0033] Figure 9 This is a schematic diagram of the exploded structure of the waterproof mechanism of the present invention;

[0034] Figure 10 This is a block diagram illustrating the internal structure of the fire alarm controller body of the present invention.

[0035] In the diagram: 1. Fire alarm controller body; 11. Fire processor; 12. Lithium battery pack; 13. Data processing unit; 14. Fire detector; 15. Alarm sending unit; 16. Log generation unit; 17. Audible and visual alarm unit; 18. Human-machine interaction system; 2. First bus; 3. Cover plate; 4. Mounting base; 5. Wiring board; 6. Waterproof mechanism; 61. Cylinder; 62. Upper conductor block; 63. Lower conductor block; 64. Bolt; 65. First threaded sleeve; 66. Rubber sheet; 67. Rubber ring; 7. Second main line; 8. Branch line; 9. Line connection auxiliary mechanism; 91. Wire spool; 92. External thread; 93. Clamping plate; 94. Conical sleeve; 95. Ring sleeve; 96. Second threaded sleeve; 97. Buffer mechanism; 971. Guide sleeve; 972. First clamping arm; 973. First square sleeve; 974. First guide wheel; 975. Spring; 976. First arc-shaped clamping block; 977. Second clamping arm; 978. Second square sleeve; 979. Second guide wheel; 9710. Second arc-shaped clamping block. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] This invention provides two technical solutions:

[0038] like Figure 1-810 illustrates a first embodiment: a multi-level interconnection device based on a marine fire alarm controller, including a fire alarm controller body 1 and a first bus 2 fixedly connected to the side wall of the fire alarm controller body 1. A wiring connection protection box is provided at the end of the first bus 2 away from the fire alarm controller body 1. The wiring connection protection box includes a cover plate 3 and a mounting base 4. The cover plate 3 is detachably mounted on the top of the mounting base 4 by bolts. A terminal block 5 is fixedly mounted on the top of the mounting base 4. Multiple waterproof mechanisms 6 are evenly fixedly mounted on the side wall of the terminal block 5 away from the fire alarm controller body 1, and a [missing information - likely a device or mechanism] is fixedly mounted inside the terminal block 5. The second bus 7 is connected to the first bus 2. Multiple branch lines 8 are evenly fixed on the side wall of the second bus 7. One end of each branch line 8 is connected to one of the waterproof mechanisms 6. Line connection auxiliary mechanisms 9 are evenly arranged on the top of the mounting base 4 and on one side of the waterproof mechanism 6. The number of line connection auxiliary mechanisms 9 is the same as that of the waterproof mechanism 6, and their positions correspond one-to-one. The fire detector 14 includes a smoke detector and an open flame detector. The alarm sending unit 15 includes a wireless WIFI module and an alarm information generation module. The sound and light alarm unit 17 includes a buzzer and a flashlight. The buzzer and the flashlight are each equipped with an independent power supply. The line connection auxiliary mechanism 9 includes a spool 91 and an external thread 92 disposed on the outer wall of the spool 91. Multiple clamping plates 93, made of thin stainless steel, are evenly fixed to one end of the spool 91. An adjustment mechanism for adjusting the opening angle of the clamping plates 93 is fitted onto the outer wall of the spool 91. The adjustment mechanism includes a conical sleeve 94, an annular sleeve 95, and a second threaded sleeve 96. An annular groove is formed on the outer wall of the conical sleeve 94. An annular sliding sleeve is fixedly disposed on the inner wall of the second threaded sleeve 96 near the conical sleeve 94, and slides within the annular groove. The conical sleeve 94 slides onto the outer wall of the spool 91. The annular sleeve 95 is fixedly connected to one end of the conical sleeve 94. The second threaded sleeve 96 rotatably fits onto the outer wall of the conical sleeve 94. The second threaded sleeve 96 is threadedly connected to the external thread 92. A buffer mechanism 97 is disposed inside the spool 91 on the side away from the external thread 92. The fire alarm controller body 1 is internally equipped with a fire alarm control system, which includes a fire processor 11, a lithium battery pack 12, a data processing unit 13, a fire detector 14, an alarm sending unit 15, a log generation unit 16, an audible and visual alarm unit 17, and a human-machine interface system 18. The output terminals of the lithium battery pack 12 and the data processing unit 13 are connected to the input terminals of the fire processor 11. The output terminal of the fire detector 14 is connected to the input terminal of the data processing unit 13. The fire processor 11 and the human-machine interface system 18 are bidirectionally connected. The output terminals of the fire processor 11 are respectively connected to the input terminals of the alarm sending unit 15, the log generation unit 16, and the audible and visual alarm unit 17. The wire reel 91 is fixedly mounted on the top of the mounting base 4 by a bracket. A rubber protective pad is fixedly installed on the inner wall of the clamping plate 93 to protect the wire.The buffer mechanism 97 includes a guide sleeve 971 and a first clamping arm mechanism and a second clamping arm mechanism disposed on both sides of the guide sleeve 971. The first clamping arm mechanism and the second clamping arm mechanism are arranged crosswise. The first clamping arm mechanism includes a first clamping arm 972, a first square sleeve 973, a first guide wheel 974, a spring 975, and a first arc-shaped clamping block 976. The first square sleeve 973 is fixedly disposed at one end of the first clamping arm 972. A first wheel frame is fixedly disposed on the side wall of the first square sleeve 973. The first guide wheel 974 is rotatably disposed inside the first wheel frame. The spring 975 is fixedly disposed on the side wall of the first square sleeve 973. The second clamping arm mechanism includes a second clamping arm 977, a second square sleeve 978, a second guide wheel 979, and a second arc-shaped clamping block 9710. A second square sleeve 978 is fixedly mounted at one end of the second clamping arm 977. A second wheel frame is fixedly mounted on the side wall of the second square sleeve 978. A second guide wheel 979 is rotatably mounted inside the second wheel frame. A second arc-shaped clamping block 9710 is fixedly mounted on the side wall of the second clamping arm 977 near the first arc-shaped clamping block 976. The second square sleeve 978 is rotatably mounted inside the first square sleeve 973 via a pivot. One end of the pivot is rotatably mounted on the inner wall of the wire drum 91. The guide sleeve 971 is fixedly mounted on the outer wall of the wire drum 91 via a support arm. After the first square sleeve 973 and the second square sleeve 978 are intersected, a channel for the wire to pass through is formed between them. When the first guide wheel 974 and the second guide wheel 979 are in contact, the minimum radius of the channel is not less than two centimeters to ensure the normal passage of the wire.

[0039] like Figure 9 The second embodiment is shown, and its main difference from the first embodiment is that, based on the multi-level interconnection device of the marine fire alarm controller, the waterproof mechanism 6 includes a cylinder 61. An upper conductor block 62 and a lower conductor block 63 are respectively arranged on the upper and lower sides of the cylinder 61 cavity. A bolt 64 is rotatably connected to the top of the upper conductor block 62, and the top of the bolt 64 penetrates the cylinder 61 and extends to the outside. A first threaded sleeve 65 is threaded onto the outer wall of the cylinder 61. A rubber sheet 66 is fixedly arranged on the inner wall of the end of the first threaded sleeve 65 away from the cylinder 61. A circular hole is opened at the center of the rubber sheet 66, and a rubber ring 67 is fixedly arranged inside the circular hole. The lower conductor block 63 is fixedly arranged at the bottom of the cylinder 61 cavity, and the upper conductor block 62 is slidably connected inside the cylinder 61 cavity. The part of the bolt 64 that contacts the cylinder 61 is threadedly connected. The cylinder 61 is fixedly arranged on the side wall of the terminal block 5, and the lower conductor block 63 is connected to one of the branch lines 8.

[0040] This invention also provides a control method for multi-level interconnected devices based on a marine fire alarm controller, the specific method including the following steps:

[0041] Step 1: When the fire detector 14 detects a fire, it sends a smoke or open flame signal to the data processing unit 13. The data processing unit 13 converts the smoke or open flame signal into an electrical signal and sends it to the fire processor 11 for judgment and processing.

[0042] Step 2: After receiving the fire information, the fire processor 11 issues an alarm through the sound and light alarm unit 17 and sends fire rescue information to the fire department through the alarm sending unit 15.

[0043] Step 3: After the fire is extinguished, staff can send a fire extinguishing command to the fire processor 11 through the human-machine interaction system 18. The fire processor 11 will then control the audible and visual alarm unit 17 to stop the alarm.

[0044] In use, remove the cover plate 3, and pass one end of the wire to be connected in an "S" shape through the first guide wheel 974 and the second guide wheel 979, then through the guide sleeve 971 and out from the other end of the spool 91. Next, put the tapered sleeve 94 on the outer wall of the spool 91, and let one end of the wire pass through the annular sleeve 95. At this time, there is no need to tighten the second threaded sleeve 96. Then, pass one end of the wire through the rubber ring 67. The rubber ring 67 is suitable for wires with an outer diameter slightly larger than its inner diameter. When the wire passes through, the rubber ring 67 will... The inner diameter of the rubber ring 67 is expanded and wrapped around the outer wall of the wire's insulation layer. The wire end enters between the upper conductor block 62 and the lower conductor block 63 inside the cylinder 61. At this time, the bolt 64 is tightened. Since the bolt 64 and the upper conductor block 62 are rotatably connected, and the bolt 64 and the cylinder 61 are threadedly connected, when the bolt 64 is tightened, the upper conductor block 62 moves downward along the inner wall of the cylinder 61. The upper conductor block 62 and the lower conductor block 63 clamp the wire end, realizing the connection between the wire end and the terminal block 5, thereby realizing the connection with... The first bus 2 and the second bus 7 are connected. Then, the first threaded sleeve 65 is put on the cylinder 61 and tightened. Then, the second threaded sleeve 96 is tightened. The second threaded sleeve 96 moves towards the buffer mechanism 97 and pulls the conical sleeve 94 to move. While the annular sleeve 95 moves, it brings together multiple ring-shaped clamping pieces 93. The wire is clamped by the multiple clamping pieces 93 and its position is fixed. When the wire on the side of the buffer mechanism 97 is pulled by an external force, the first guide wheel 974 and the second guide wheel 979 are pulled together and move closer to each other. The wire reserved between them is pulled out. At the same time, the spring 975 is gradually stretched. Meanwhile, the first clamping arm 972 and the second clamping arm 977 move closer to each other. The wire is clamped between the first arc-shaped clamping block 976 and the second arc-shaped clamping block 9710. The rubber ring 67 tightly wraps the wire, making it difficult for external air to enter the space between the cylinder 61 and the first threaded sleeve 65. The wire connection position is protected.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0046] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-stage interconnection device based on a marine fire alarm controller, comprising a fire alarm controller body and a first bus fixedly connected to the side wall of the fire alarm controller body, characterized in that: A line connection protection box is provided at the end of the first bus away from the fire alarm controller body. The line connection protection box includes a cover plate and a mounting base. The cover plate is detachably mounted on the top of the mounting base by bolts. A wiring board is fixedly mounted on the top of the mounting base. Multiple waterproof mechanisms are evenly fixedly mounted on the side wall of the wiring board away from the fire alarm controller body. A second bus connected to the first bus is fixedly mounted inside the wiring board. Multiple branch lines are evenly fixedly mounted on the side wall of the second bus. One end of each branch line is connected to one of the waterproof mechanisms. A line connection auxiliary mechanism is evenly mounted on the top of the mounting base and on one side of the waterproof mechanism. The line connection auxiliary mechanism includes a spool and an external thread on the outer wall of the spool. Multiple clamping plates are evenly fixed at one end of the spool. An adjustment mechanism for adjusting the opening angle of the clamping plates is sleeved on the outer wall of the spool. The adjustment mechanism includes a conical sleeve, an annular sleeve, and a second threaded sleeve. The conical sleeve is slidably sleeved on the outer wall of the spool. The annular sleeve is fixedly connected to one end of the conical sleeve. The second threaded sleeve is rotatably sleeved on the outer wall of the conical sleeve. The second threaded sleeve and the external thread are threadedly connected. A buffer mechanism is provided on the side of the spool away from the external thread. The fire alarm controller body is equipped with a fire alarm control system, which includes a fire processor, a lithium battery pack, a data processing unit, a fire detector, an alarm sending unit, a log generation unit, an audible and visual alarm unit, and a human-machine interaction system. The output terminals of the lithium battery pack and the data processing unit are connected to the input terminal of the fire processor. The output terminal of the fire detector is connected to the input terminal of the data processing unit. The fire processor and the human-machine interaction system are bidirectionally connected. The output terminal of the fire processor is connected to the input terminals of the alarm sending unit, the log generation unit, and the audible and visual alarm unit, respectively. The buffer mechanism includes a guide sleeve and a first clamping arm mechanism and a second clamping arm mechanism disposed on both sides of the guide sleeve. The first clamping arm mechanism includes a first clamping arm, a first square sleeve, a first guide wheel, a spring, and a first arc-shaped clamping block. The first square sleeve is fixedly disposed at one end of the first clamping arm. A first wheel frame is fixedly disposed on the side wall of the first square sleeve. The first guide wheel is rotatably disposed inside the first wheel frame. The spring is fixedly disposed on the side wall of the first square sleeve. The second clamping arm mechanism includes a second clamping arm, a second square sleeve, a second guide wheel, and a second arc-shaped clamping block. The second square sleeve is fixedly disposed at one end of the second clamping arm. A second wheel frame is fixedly disposed on the side wall of the second square sleeve. The second guide wheel is rotatably disposed inside the second wheel frame. The second arc-shaped clamping block is fixedly disposed on the side wall of the second clamping arm near the first arc-shaped clamping block. The waterproof mechanism includes a cylindrical body. An upper conductor block and a lower conductor block are respectively arranged on the upper and lower sides of the inner cavity of the cylindrical body. A bolt is rotatably connected to the top of the upper conductor block. The top of the bolt passes through the cylindrical body and extends to the outside. A first threaded sleeve is threaded on the outer wall of the cylindrical body. A rubber sheet is fixedly arranged on the inner wall of the end of the first threaded sleeve away from the cylindrical body. A circular hole is opened in the center of the rubber sheet. A rubber ring is fixedly arranged inside the circular hole.

2. The multi-level interconnection device based on a marine fire alarm controller according to claim 1, characterized in that: The spool is fixedly mounted on the top of the mounting base by a bracket, and a rubber protective pad is fixedly installed on the inner wall of the clamping plate to protect the wire.

3. The multi-level interconnection device based on a marine fire alarm controller according to claim 1, characterized in that: The second square sleeve is rotatably disposed inside the first square sleeve via a rotating shaft, one end of which is rotatably disposed on the inner wall of the cylinder, and the guide sleeve is fixedly disposed on the outer wall of the cylinder via a support arm.

4. The multi-level interconnection device based on a marine fire alarm controller according to claim 1, characterized in that: The cylinder is fixedly mounted on the side wall of the wiring board, and the lower conductor block is connected to one of the branch lines.

5. The multi-level interconnection device based on a marine fire alarm controller according to claim 1, characterized in that: The fire detectors include smoke detectors and open flame detectors.

6. A control method for a multi-level interconnected device based on a marine fire alarm controller as described in claim 1, characterized in that: The method includes the following steps: Step 1: When the fire detector detects a fire, it sends a smoke or open flame signal to the data processing unit. The data processing unit converts the smoke or open flame signal into an electrical signal and sends it to the fire processor for judgment and processing. Step 2: After receiving the fire information, the fire processor issues an alarm through the sound and light alarm unit and sends fire rescue information to the fire department through the alarm sending unit. Step 3: After the fire is extinguished, staff can send a fire suppression command to the fire processor through the human-machine interface system, and the fire processor will control the audible and visual alarm unit to stop the alarm.

7. The control method for multi-level interconnected devices based on marine fire alarm controllers according to claim 6, characterized in that: The alarm sending unit includes a wireless WIFI module and an alarm information generation module, and the sound and light alarm unit includes a buzzer and a flashlight. Both the buzzer and the flashlight have independent power supplies.

Images