Large-scale public building fire alarm device and application

Abstract

The invention relates to the technical field of fire alarm, and discloses a large-scale public building fire alarm device and application, the large-scale public building fire alarm device comprises a bottom plate and a transparent protective cover, the top of the bottom plate is fixedly provided with a mounting plate, and one side of the mounting plate is provided with a moving plate; a main controller, a wireless communication module, an infrared intelligent camera, an information triggering module and a 3D model GPS positioning system are fixedly arranged in the transparent protective cover, and a plurality of L-shaped positioning plates are arranged at the bottom of the moving plate. According to the large-scale public building fire alarm device, fire information can be sent out in time, firefighters or personnel in the building can know the fire situation in the first time, rescue time is saved, fire control is rapidly and effectively achieved, and the fire alarm efficiency is improved. And when the electrical elements are damaged, a user can conveniently disassemble, overhaul and replace the fire alarm device, so that the normal use of the fire alarm device is ensured.

Description

Technical Field

[0001] The present invention relates to the field of fire alarm, and in particular to a large public building fire alarm device and application thereof. Background Art

[0002] Fire alarm is a term used in the special fire protection industry. It is a device that automatically detects fires or manually sends out alarm signals and is required by the state to be used in various commercial, industrial, and entertainment public places.

[0003] After searching, an intelligent fire alarm device for public buildings with announcement number CN210721774U is found, which includes a partition, a medium-speed ball is fixedly connected to the lower surface of the partition, a laser fog lamp is fixedly connected to one side of the medium-speed ball, a tweeter is plugged into the lower end of the partition, a signal receiving module and a power adapter are fixedly connected to the left and right ends of the partition respectively, and a control assembly is fixedly connected to the upper surface of the partition.

[0004] However, although the intelligent fire alarm device in public buildings can achieve fire control to a certain extent, it is unable to monitor the fire scene and cannot transmit fire information in time. Firefighters or people in the building cannot understand the fire situation in the first time and organize effective rescue and escape, which delays the rescue time and thus cannot quickly and effectively control the fire. In addition, when electrical components are damaged, it is difficult for users to disassemble, repair and replace them, which affects the normal use of the fire alarm device. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the present invention provides a large-scale public building fire alarm device and its application, which can transmit fire information in time, so that firefighters or people in the building can understand the fire situation at the first time, save rescue time, and quickly and effectively control the fire. In addition, when electrical components are damaged, users can easily disassemble, repair and replace the fire alarm device, thereby ensuring that the fire alarm device can be used normally. It solves the problem that although fire control is achieved to a certain extent, the fire scene cannot be monitored, the fire information cannot be transmitted in time, firefighters or people in the building cannot understand the fire situation at the first time, and cannot organize effective rescue and escape, which delays the rescue time, and thus cannot quickly and effectively control the fire. In addition, electrical components such as signal receiving modules, power adapters and control assemblies are all installed inside the partition, so when the electrical components are damaged, it is difficult for users to disassemble, repair and replace them, thereby affecting the normal use of the fire alarm device.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an anti-theft manhole cover with a buffer mechanism, comprising a bottom plate and a transparent protective cover, a mounting plate is fixedly arranged on the top of the bottom plate, a movable plate is arranged on one side of the mounting plate, the transparent protective cover is fitted on the bottom of the movable plate, a main controller, a wireless communication module, an infrared intelligent camera, an information trigger module and a 3D model GPS positioning system are fixedly arranged inside the transparent protective cover, a fire sensor and an alarm module are fixedly arranged on the top of the mounting plate, the wireless communication module, the infrared intelligent camera, the information trigger module, the 3D model GPS positioning system, The fire sensor and the alarm module are both electrically connected to the main controller; a plurality of positioning blocks are fixedly provided on the side walls of the transparent protective cover; a positioning groove is provided inside the lower part of each positioning block; a plurality of L-shaped positioning plates are provided at the bottom of the movable plate; the top of each L-shaped positioning plate is plugged into the corresponding positioning groove; two sliders are slidingly provided inside the mounting plate; each slider is fixedly connected to the movable plate; a driving mechanism is provided on the back of the mounting plate; each slider matches the driving mechanism; a plurality of elastic mechanisms are provided at the bottom of the movable plate; each L-shaped positioning plate matches the corresponding elastic mechanism.

[0009] Preferably, the driving mechanism includes an L-shaped fixing plate, a motor, two rotating rods, two gears, two connecting plates and two racks, the L-shaped fixing plate is fixedly arranged on the back side of the mounting plate, the motor is fixedly arranged on the side wall of the L-shaped fixing plate, the two rotating rods are rotatably arranged on the back side of the mounting plate, one end of one of the rotating rods is fixedly connected to the output shaft of the motor, the two gears are respectively fixedly sleeved on the rod walls of the corresponding rotating rods, the two connecting plates are respectively fixedly connected to the corresponding sliders, the two racks are respectively fixedly connected to the corresponding connecting plates, and the two gears are respectively meshed with the corresponding racks.

[0010] Preferably, each of the elastic mechanisms includes a connecting rod, a rotating plate and a spring, one end of the connecting rod is rotatably set at the bottom of the movable plate, the rotating plate is fixedly set at the other end of the connecting rod, one end of the spring is fixedly connected to the bottom of the rotating plate, and the other end of the spring is fixedly connected to the corresponding L-shaped positioning plate.

[0011] Preferably, the fire sensor is electrically connected to the 3D model GPS positioning system.

[0012] Preferably, the fire sensor is a smoke sensor.

[0013] Preferably, two support plates are fixedly provided on the back side of the mounting plate, a square limiting rod is fixedly provided on the top of each support plate, a square limiting groove is opened inside the lower part of each rack, and each square limiting rod is movably sleeved inside the corresponding square limiting groove.

[0014] Preferably, a telescopic rod is movably sleeved inside each of the springs, one end of each of the telescopic rods is fixedly connected to the corresponding rotating plate, and the other end of each of the telescopic rods is fixedly connected to the corresponding L-shaped positioning plate.

[0015] Preferably, two strip-shaped slide grooves are provided inside the mounting plate, and each of the sliding blocks is slidably disposed inside a corresponding strip-shaped slide groove.

[0016] Application of a fire alarm device for large public buildings:

[0017] S1: First, when a fire is detected by the fire sensor, a trigger signal is sent to the main controller. When the main controller receives the trigger signal, the alarm module sends an alarm signal, the infrared intelligent camera is started to shoot the fire image, and the wireless communication module sends the fire image taken by the camera to the monitoring terminal and the user terminal. The 3D model GPS system will locate the fire position on the building model. The fire direction simulation system generates a fire direction based on the 3D model according to the fire image, designs a suitable fire extinguishing plan and escape plan, and arranges firefighters to rush to the fire scene in time to extinguish the fire and the people in the scene escape;

[0018] S2: The two sliders can drive the moving plate and the transparent protective cover to move downward. When the moving plate and the transparent protective cover are moved to a certain height, the user pulls the multiple L-shaped positioning plates and makes the tops of the multiple L-shaped positioning plates separate from the corresponding positioning grooves, so that the transparent protective cover can be quickly disassembled, which is convenient for the user to inspect and replace the infrared intelligent camera, thereby ensuring the normal use of the fire alarm device;

[0019] S3: Starting the motor drives one of the rotating rods to rotate, which can drive the corresponding gear to rotate. The two gears are meshed and connected, which can realize the reverse rotation of the two gears, and can make the two racks move up and down at the same time, so as to realize the smooth movement of the two connecting plates, the two sliders and the moving plate.

[0020] (III) Beneficial effects

[0021] Compared with the prior art, the present invention provides an anti-theft manhole cover with a buffer mechanism, which has the following beneficial effects:

[0022] 1. The fire alarm device for large public buildings is provided with a main controller, and then the fire sensor sends a trigger signal to the main controller when detecting a fire. When the main controller receives the trigger signal, the alarm module sends an alarm signal, and the infrared intelligent camera is started to shoot the fire image. The wireless communication module sends the fire image taken by the camera to the monitoring terminal and the user terminal. The 3D model GPS system will locate the fire position on the building model. The fire direction simulation system generates a fire direction based on the 3D model according to the fire image, designs a suitable fire extinguishing plan and escape plan, and arranges firefighters to rush to the fire scene in time to extinguish the fire and the people in the scene to escape.

[0023] 2. The fire alarm device for large public buildings is provided with multiple L-shaped positioning plates and two sliders. When the infrared intelligent camera is damaged, the two sliders are driven downward by the driving mechanism, and then the two sliders can drive the movable plate and the transparent protective cover to move downward. When they move to a certain height, the user pulls the multiple L-shaped positioning plates and makes the tops of the multiple L-shaped positioning plates disengage from the corresponding positioning grooves, and then the transparent protective cover can be quickly disassembled, so that the user can inspect and replace the infrared intelligent camera conveniently, thereby ensuring the normal use of the fire alarm device.

[0024] 3. The fire alarm device for large public buildings is provided with a driving mechanism, which includes an L-shaped fixed plate, a motor, two rotating rods, two gears, two connecting plates and two racks. The motor is started to drive one of the rotating rods to rotate, which in turn can drive the corresponding gear to rotate. The two gears are meshed and connected, so that the two gears can rotate in opposite directions, so that the two racks can move up and down in the same direction, thereby realizing the smooth movement of the two connecting plates, the two sliders and the moving plate.

[0025] 4. The fire alarm device for large public buildings is provided with multiple elastic mechanisms, each of which includes a connecting rod, a rotating plate and a spring. When the movable plate drops to a certain height, the L-shaped positioning plate is pulled and the spring is stretched, so that the top of the L-shaped positioning plate can be smoothly separated from the corresponding positioning groove. After separation, the rotating plate is rotated, and then the connecting rod, the rotating plate, the spring and the L-shaped positioning plate can be smoothly rotated to one side of the positioning groove, so that the user can quickly disassemble the transparent protective cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic cross-sectional view of a large public building fire alarm device and its application proposed by the present invention;

[0027] Figure 2 For the present invention Figure 1 Rear view of

[0028] Figure 3 For the present invention Figure 1 A magnified view of the structure of part A;

[0029] Figure 4 For the present invention Figure 2 A schematic diagram of the three-dimensional structure of a rack;

[0030] Figure 5 It is a solid diagram of the three-dimensional connection structure of the slider and the corresponding connection plate of the present invention.

[0031] In the figure: 1; bottom plate, 2; transparent protective cover, 3; mounting plate, 4; moving plate, 5; main controller, 6; wireless communication module, 7; infrared intelligent camera, 8; information trigger module, 9; 3D model GPS positioning system, 10; fire sensor, 11; alarm module, 12; positioning block, 13; L-shaped positioning plate, 14; slider, 15; L-shaped fixing plate, 16; motor, 17; rotating rod, 18; gear, 19; connecting plate, 20; rack, 21; connecting rod, 22; rotating plate, 23; spring, 24; support plate, 25; square limit rod, 26; telescopic rod, 27; strip slide. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, other embodiments obtained by ordinary technicians in this field without creative work are all within the scope of protection of the present invention.

[0033] See also Figure 1-5A large public building fire alarm device and its application, comprising a base plate 1 and a transparent protective cover 2, a mounting plate 3 is fixedly arranged on the top of the base plate 1, a movable plate 4 is arranged on one side of the mounting plate 3, the transparent protective cover 2 is fitted on the bottom of the movable plate 4, a main controller 5, a wireless communication module 6, an infrared intelligent camera 7, an information trigger module 8 and a 3D model GPS positioning system 9 are fixedly arranged inside the transparent protective cover 2, a fire sensor 10 and an alarm module 11 are fixedly arranged on the top of the mounting plate 3, the wireless communication module 6, the infrared intelligent camera 7, the information trigger module 8, the 3D model GPS positioning system 9, the fire sensor 10 and the alarm module 11 are all electrically connected to the main controller 5, a plurality of positioning blocks 12 are fixedly arranged on the side wall of the transparent protective cover 2, each positioning block 12 is fixedly arranged on the side wall of the transparent protective cover 2, and each positioning block 12 is fixedly arranged on the side wall of the transparent protective cover 2. Positioning grooves are provided inside the lower part of the positioning block 12, and a plurality of L-shaped positioning plates 13 are provided at the bottom of the movable plate 4. The top of each L-shaped positioning plate 13 is plugged into the corresponding positioning groove. Two sliders 14 are provided for sliding inside the mounting plate 3, and each slider 14 is fixedly connected to the movable plate 4. A driving mechanism is provided on the back of the mounting plate 3, and each slider 14 is matched with the driving mechanism. A plurality of elastic mechanisms are provided at the bottom of the movable plate 4, and each L-shaped positioning plate 13 is evenly matched with the corresponding elastic mechanism. By utilizing the set main controller 5, the L-shaped positioning plate 13 and the two sliders 14, it is possible not only to rush to the fire scene in time to extinguish the fire and the personnel in the scene can escape, but also it is convenient for the user to inspect and replace the infrared intelligent camera 7, thereby ensuring the normal use of the fire alarm device.

[0034] The driving mechanism includes an L-shaped fixing plate 15, a motor 16, two rotating rods 17, two gears 18, two connecting plates 19 and two racks 20. The L-shaped fixing plate 15 is fixedly arranged on the back side of the mounting plate 3, the motor 16 is fixedly arranged on the side wall of the L-shaped fixing plate 15, and the two rotating rods 17 are rotatably arranged on the back side of the mounting plate 3. One end of one of the rotating rods 17 is fixedly connected to the output shaft of the motor 16, and the two gears 18 are respectively fixedly sleeved on the rod walls of the corresponding rotating rods 17. The two connecting plates 19 are respectively fixedly connected to the corresponding sliders 14, and the two racks 20 are respectively fixedly connected to the corresponding connecting plates 19. The two gears 18 are respectively meshed and connected with the corresponding racks 20. By utilizing the set driving mechanism, the smooth movement of the two connecting plates 19, the two sliders 14 and the movable plate 4 is realized.

[0035] Each elastic mechanism includes a connecting rod 21, a rotating plate 22 and a spring 23. One end of the connecting rod 21 is rotatably set at the bottom of the movable plate 4, and the rotating plate 22 is fixedly set at the other end of the connecting rod 21. One end of the spring 23 is fixedly connected to the bottom of the rotating plate 22, and the other end of the spring 23 is fixedly connected to the corresponding L-shaped positioning plate 13. By utilizing the multiple elastic mechanisms, the user can quickly disassemble the transparent protective cover 2.

[0036] The fire sensor 10 is electrically connected to the 3D model GPS positioning system 9, and the GPS system is linked to the 3D model, thereby being able to accurately display the fire location on the 3D model and cooperate with the infrared smart camera 7 to reflect the fire dynamics to the 3D model in real time.

[0037] The fire sensor 10 is a smoke sensor. When the smoke concentration detected by the smoke sensor reaches a preset smoke concentration value, the smoke sensor sends a trigger signal to the main controller 5, thereby enabling the fire alarm device to quickly sense the fire.

[0038] Two support plates 24 are fixedly provided on the back side of the mounting plate 3, a square limit rod 25 is fixedly provided on the top of each support plate 24, a square limit groove is opened inside the lower part of each rack 20, and each square limit rod 25 is movably sleeved in the corresponding square limit groove. The square limit rod 25 is provided to improve the stability of the up and down movement of the two racks 20, thereby ensuring that the two racks 20 can move up and down stably.

[0039] A telescopic rod 26 is movably sleeved inside each spring 23, one end of each telescopic rod 26 is fixedly connected to the corresponding rotating plate 22, and the other end of each telescopic rod 26 is fixedly connected to the corresponding L-shaped positioning plate 13. By utilizing the multiple telescopic rods 26, the multiple telescopic rods 26 can limit the extension and retraction of the multiple springs 23, thereby ensuring that the multiple springs 23 can be stably extended and retracted, and can limit the upper and lower positions of the L-shaped positioning plate 13.

[0040] Two strip-shaped slide grooves 27 are provided inside the mounting plate 3 , and each slider 14 is slidably arranged inside the corresponding strip-shaped slide groove 27 . The two strip-shaped slide grooves 27 are used to ensure that the two sliders 14 can slide up and down smoothly inside the mounting plate 3 .

[0041] Application of a fire alarm device for large public buildings:

[0042] S1: First, when a fire is detected by the fire sensor 10, a trigger signal is sent to the main controller 5. When the main controller 5 receives the trigger signal, the alarm module 11 sends an alarm signal, the infrared intelligent camera 7 is started to shoot the fire image, and the wireless communication module 6 sends the fire image taken by the camera to the monitoring terminal and the user terminal. The 3D model GPS system 9 will locate the fire position on the building model, and the fire direction simulation system will generate a fire direction based on the 3D model according to the fire image, design a suitable fire extinguishing plan and escape plan, and arrange firefighters to rush to the fire scene in time to extinguish the fire and the people in the scene to escape;

[0043] S2: The two sliders 14 can drive the movable plate 4 and the transparent protective cover 2 to move downward. When the movable plate 4 and the transparent protective cover 2 are moved to a certain height, the user pulls the multiple L-shaped positioning plates 13 and makes the tops of the multiple L-shaped positioning plates 13 disengage from the corresponding positioning grooves, so that the transparent protective cover 2 can be quickly disassembled, which is convenient for the user to inspect and replace the infrared intelligent camera 7 to ensure the normal use of the fire alarm device;

[0044] S3: Starting the motor 16 drives one of the rotating rods 17 to rotate, which can drive the corresponding gear 18 to rotate. The two gears 18 are meshed and connected, which can realize the reverse rotation of the two gears 18, and can make the two racks 20 move up and down at the same time, thereby realizing the smooth movement of the two connecting plates 19, the two sliders 14 and the movable plate 4.

[0045] In summary, when the large public building fire alarm device is in use, the fire sensor 10 sends a trigger signal to the main controller 5 when detecting a fire. When the main controller 5 receives the trigger signal, the alarm module 11 sends an alarm signal, and the infrared intelligent camera 7 is started to shoot the fire image, and then a suitable fire extinguishing plan and escape plan are designed, and firefighters are arranged to rush to the fire scene in time to extinguish the fire and the people in the scene escape;

[0046] By using a plurality of L-shaped positioning plates 13 and two sliders 14, the two sliders 14 can drive the movable plate 4 and the transparent protective cover 2 to move downward. When the movable plate 4 and the transparent protective cover 2 are moved to a certain height, the user pulls the plurality of L-shaped positioning plates 13 and makes the tops of the plurality of L-shaped positioning plates 13 disengage from the corresponding positioning grooves, so that the transparent protective cover 2 can be quickly disassembled, thereby facilitating the user to inspect and replace the infrared intelligent camera 7, thereby ensuring the normal use of the fire alarm device;

[0047] By using the driving mechanism, the motor 16 is started to drive one of the rotating rods 17 to rotate, which in turn can drive the corresponding gear 18 to rotate. The two gears 18 are meshed and connected, so that the two gears 18 can rotate in opposite directions, so that the two racks 20 can move up and down at the same time, thereby realizing the smooth movement of the two connecting plates 19, the two sliders 14 and the moving plate 4;

[0048] By utilizing multiple elastic mechanisms, when the movable plate 4 drops to a certain height, the L-shaped positioning plate 13 is pulled and the spring 23 is stretched, so that the top of the L-shaped positioning plate 13 can be smoothly disengaged from the corresponding positioning groove. After disengagement, the rotating plate 22 is rotated, and then the connecting rod 21, the rotating plate 22, the spring 23 and the L-shaped positioning plate 13 can be smoothly rotated to one side of the positioning groove, thereby facilitating the user to quickly disassemble the transparent protective cover 2.

[0049] It should be noted that the term "comprises" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also includes other elements that are not explicitly listed, or also includes elements inherent to such process, method, article, or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article, or device that includes the element.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A large public building fire alarm device, comprising a base plate (1) and a transparent protective cover (2), characterized in that: A mounting plate (3) is fixedly arranged on the top of the base plate (1), a movable plate (4) is arranged on one side of the mounting plate (3), the transparent protective cover (2) is fitted on the bottom of the movable plate (4), a main controller (5), a wireless communication module (6), an infrared intelligent camera (7), an information trigger module (8) and a 3D model GPS positioning system (9) are fixedly arranged inside the transparent protective cover (2), a fire sensor (10) and an alarm module (11) are fixedly arranged on the top of the mounting plate (3), and the wireless communication module (6), the infrared intelligent camera (7), the information trigger module (8), the 3D model GPS positioning system (9), the fire sensor (10) and the alarm module (11) are all connected to the main controller The control device (5) is electrically connected, a plurality of positioning blocks (12) are fixedly arranged on the side wall of the transparent protective cover (2), and a positioning groove is opened inside the lower part of each positioning block (12), a plurality of L-shaped positioning plates (13) are arranged at the bottom of the movable plate (4), and the top of each L-shaped positioning plate (13) is inserted into the corresponding positioning groove, two sliders (14) are slidably arranged inside the mounting plate (3), and each slider (14) is fixedly connected to the movable plate (4), a driving mechanism is arranged on the back of the mounting plate (3), and each slider (14) is matched with the driving mechanism, and a plurality of elastic mechanisms are arranged at the bottom of the movable plate (4), and each L-shaped positioning plate (13) is evenly matched with the corresponding elastic mechanism.

2. A large public building fire alarm device according to claim 1, characterized in that: The driving mechanism comprises an L-shaped fixing plate (15), a motor (16), two rotating rods (17), two gears (18), two connecting plates (19) and two racks (20); the L-shaped fixing plate (15) is fixedly arranged on the back side of the mounting plate (3); the motor (16) is fixedly arranged on the side wall of the L-shaped fixing plate (15); the two rotating rods (17) are rotatably arranged on the back side of the mounting plate (3); one end of one of the rotating rods (17) is fixedly connected to the output shaft of the motor (16); the two gears (18) are respectively fixedly sleeved on the rod wall of the corresponding rotating rod (17); the two connecting plates (19) are respectively fixedly connected to the corresponding sliding blocks (14); the two racks (20) are respectively fixedly connected to the corresponding connecting plates (19); and the two gears (18) are respectively meshedly connected to the corresponding racks (20).

3. A large public building fire alarm device according to claim 1, characterized in that: Each of the elastic mechanisms comprises a connecting rod (21), a rotating plate (22) and a spring (23); one end of the connecting rod (21) is rotatably arranged at the bottom of the movable plate (4); the rotating plate (22) is fixedly arranged at the other end of the connecting rod (21); one end of the spring (23) is fixedly connected to the bottom of the rotating plate (22); and the other end of the spring (23) is fixedly connected to the corresponding L-shaped positioning plate (13).

4. A large public building fire alarm device according to claim 1, characterized in that: The fire sensor (10) is electrically connected to the 3D model GPS positioning system (9).

5. A large public building fire alarm device according to claim 1, characterized in that: The fire sensor (10) is a smoke sensor.

6. A large public building fire alarm device according to claim 2, characterized in that: Two support plates (24) are fixedly arranged on the back of the mounting plate (3), a square limiting rod (25) is fixedly arranged on the top of each support plate (24), a square limiting groove is opened inside the lower part of each rack (20), and each square limiting rod (25) is movably sleeved inside the corresponding square limiting groove.

7. A large public building fire alarm device according to claim 3, characterized in that: A telescopic rod (26) is movably sleeved inside each of the springs (23), one end of each of the telescopic rods (26) is fixedly connected to the corresponding rotating plate (22), and the other end of each of the telescopic rods (26) is fixedly connected to the corresponding L-shaped positioning plate (13).

8. A large public building fire alarm device according to claim 1, characterized in that: Two strip-shaped slide grooves (27) are provided inside the mounting plate (3), and each of the sliding blocks (14) is slidably arranged inside a corresponding strip-shaped slide groove (27).

9. An application of a large public building fire alarm device, comprising the large public building fire alarm device according to any one of claims 1 to 8, characterized in that: S1: First, when a fire is detected by the fire sensor (10), a trigger signal is sent to the main controller (5). When the main controller (5) receives the trigger signal, the alarm module (11) sends an alarm signal, the infrared intelligent camera (7) is activated to shoot the fire image, the wireless communication module (6) sends the fire image shot by the camera to the monitoring terminal and the user terminal, the 3D model GPS system (9) locates the fire position on the building model, the fire direction simulation system generates a fire direction based on the 3D model according to the fire image, designs a suitable fire extinguishing plan and escape plan, arranges firefighters to rush to the fire scene in time to extinguish the fire, and the people on the scene escape; S2: The two sliders (14) can drive the movable plate (4) and the transparent protective cover (2) to move downward. When the movable plate (4) and the transparent protective cover (2) are moved to a certain height, the user pulls the multiple L-shaped positioning plates (13) and causes the tops of the multiple L-shaped positioning plates (13) to be separated from the corresponding positioning grooves, so that the transparent protective cover (2) can be quickly disassembled, which is convenient for the user to inspect and replace the infrared intelligent camera (7), thereby ensuring the normal use of the fire alarm device; S3: Starting the motor (16) to drive one of the rotating rods (17) to rotate, which can drive the corresponding gear (18) to rotate. The two gears (18) are meshed and connected, which can realize the reverse rotation of the two gears (18), and can make the two racks (20) move up and down at the same time, thereby realizing the smooth movement of the two connecting plates (19), the two sliders (14) and the movable plate (4).

Images