Building fire-fighting Internet of Things system alarm device

Abstract

The invention discloses a building fire-fighting Internet of Things system alarm device, and relates to the technical field of fire-fighting alarm. Comprising a detection part and an alarm part, the detection part comprises a mounting plate and a detection module, the alarm part comprises an upper-layer box body, a lower-layer box body and an alarm navigation mask, a projection lamp, an LED lamp and a loudspeaker are mounted outside the upper-layer box body, a controller and a dispersion assembly are arranged inside the upper-layer box body, and the alarm navigation mask is hoisted below the dispersion assembly. Alarm characters can be projected on a wall, attention of people can be attracted through flickering light, voice broadcasting is carried out at the same time, people with visual impairment and people with hearing impairment can receive alarm information in time, a display screen can synchronously display an accurate fire site, accurate information is provided for people, an escape path is planned for people, a fire area is avoided, and the safety of people is improved. Meanwhile, the alarm navigation mask can automatically fall off, the alarm navigation mask has the voice broadcast and character display functions, escape routes are provided for trapped people, meanwhile, the positions are synchronized to rescue workers, and search and rescue are facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of fire alarm technology, and in particular to an alarm device for a building fire protection Internet of Things system. Background Art

[0002] The fire alarm installed in the building is usually installed on the ceiling of each room and corridor. It integrates detection and alarm functions. When a fire occurs in a room, the fire alarm in the room will be the first to sense and sound the alarm. If the fire alarm is connected to the Internet of Things in the area, then the Internet of Things system will control all fire alarms in the building to sound the alarm after confirming the fire, reminding people in the building to evacuate as soon as possible, and the alarm signal will be uploaded to the fire center.

[0003] However, due to the single alarm information issued, people in the building only know that there is a fire, but cannot immediately know which floor or room the fire is in. Coupled with the panic and possible smoke interference at the scene, people may not be able to find the correct escape route, especially some special groups, such as those with visual and hearing impairments, who have difficulties receiving alarm information and may not even know there is an alarm, thus missing the best time to escape. After receiving the alarm, the fire center is unable to promptly understand the distribution of people in the building. In the subsequent rescue process, it is necessary to spend time searching for scattered people in the burning building, which not only delays rescue time but also increases rescue risks.

[0004] In addition, since single-detection alarms are prone to false alarms, many existing alarms are composite alarms, which combine multiple detection technologies such as smoke, temperature or flame in one alarm to improve accuracy and reliability. Flame sensors have a wide detection range, fast response speed, are not affected by the environment layout, and can detect flames at a long distance (the disadvantage is that they are easily disturbed by sunlight and strong light). Therefore, flame sensors are often used in conjunction with smoke or temperature sensors (the disadvantage of smoke or temperature sensors is that they are easily affected by the environment layout and have a slow response speed). In particular, if there are objects blocking the smoke and temperature detection, it will take some time to detect the fire. Different types of sensors may have different signal processing priorities in composite alarms. For example, the signal of a flame sensor may have a higher priority due to its intuitive response to fire. If the flame sensor sends a signal first, the alarm will wait for feedback from other sensors while processing this signal. If there are obstructions around, it will take a while for the smoke or temperature sensor to provide feedback (if the smoke or temperature sensor has no signal feedback, and the signal from the flame sensor continues, the alarm may also sound an alarm according to the preset logical rules), which results in the alarm not being able to sound the alarm in a timely manner.

[0005] From detecting the fire, to the alarm being sounded, to the alarm spreading, to the people in the building (especially the visually impaired and the hearing impaired) receiving the alarm information, the whole process has slow response speed, complex alarm transmission path and vague alarm information. Therefore, we want to design a fire alarm device that can shorten the response time and quickly and accurately transmit the alarm information to the people in the building and the firefighters. Summary of the invention

[0006] The purpose of the present invention is to solve the problems raised in the background technology and to propose an alarm device for a building fire protection Internet of Things system.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions: An alarm device for a building fire protection Internet of Things system comprises: a detection part and an alarm part, wherein the detection part comprises a mounting plate and a detection module, a flame sensor is fixedly mounted on the lower surface of the mounting plate, the detection module comprises a fixing part and a telescopic part, the fixing part is fixedly connected to the mounting plate, the telescopic part is slidably connected to the fixing part, and a smoke sensor is fixedly mounted on the end of the telescopic part; The alarm unit includes an upper box, a lower box and an alarm navigation mask. The upper box and the lower box are an integrated structure separated by a partition in the middle. A projection lamp, an LED lamp and a speaker are fixedly installed on the outside of the upper box. A controller and a dispersion component are arranged inside the upper box. The dispersion component includes a dispersion guide roller and a plurality of dispersion units. An alarm navigation mask is hoisted under each dispersion unit, and the alarm navigation mask is located inside the lower box. A display screen is provided on the outer surface of the lower box, and a telescopic plug is arranged inside.

[0008] As a further solution of the present invention: the dispersion guide roller is located in the upper box, two fixed blocks are fixedly installed on the partition at the bottom of the upper box, both ends of the dispersion guide roller are rotatably installed with the two fixed blocks, and one end of the dispersion guide roller is connected to the rotating motor; The dispersion unit includes a dispersion block and a suspension line. The partition is provided with a dispersion groove corresponding to the dispersion guide roller. The dispersion block is slidably installed in the dispersion groove. A guide rod is fixedly installed on the top of the dispersion block, and a suspension line is fixedly connected to the bottom. A suspension ring is fixedly installed at the end of the suspension line for connecting to an alarm navigation mask. The surface of the dispersion guide roller is provided with a plurality of dispersion guide grooves, and the plurality of dispersion guide grooves are arranged in a direction from gathering to dispersion with the symmetry center of the dispersion guide roller as the gathering center, and a guide rod is slidably installed in each dispersion guide groove.

[0009] As a further solution of the present invention: the alarm navigation mask comprises a filter mask, a transparent eye mask and a control box, wherein a GPS positioning module, a vibration module and a voice module are arranged inside the control box, and a universal connecting rod is fixedly installed outside the control box, and an end display is arranged at the end of the universal connecting rod; A micro-block is fixedly installed on the top of the alarm navigation mask, and a left block and a right block are rotatably installed on the micro-block. A spring is fixedly installed between the left block and the right block, and the left block and the right block are arranged in a hook shape, symmetrically installed with each other and buckled at the top, and the hanging ring is clamped between the left block and the right block.

[0010] As a further solution of the present invention: the filter mask, transparent eye mask and control box of the alarm navigation mask are fixed as an integrated structure, and the filter mask and transparent eye mask are both provided with fixing belts, and the lengths of the hanging lines above adjacent alarm navigation masks are different.

[0011] As a further solution of the present invention: a charging base is fixedly installed inside the lower box, a plurality of installation grooves are provided on the charging base, a micro spring is fixedly installed in the installation groove, the micro spring is fixedly connected to the telescopic plug, an electromagnet is arranged in the installation groove, and a magnetic block is provided on the telescopic plug.

[0012] As a further solution of the present invention: the control box is provided with a charging socket, the charging socket matches the telescopic plug, the cross-section of the telescopic plug matches the cross-section of the mounting groove, the cross-section of the control box is larger than the cross-section of the mounting groove, and when the micro spring is in a compressed state, the telescopic plug retracts into the mounting groove.

[0013] As a further solution of the present invention: the automatic flap is rotationally connected to the lower box body, and the automatic flap is in contact with the bottom of the alarm navigation mask, and an electric push rod for opening the automatic flap is installed inside the lower box body, one end of the electric push rod is rotationally connected to the automatic flap, and the other end is rotationally connected to the inner wall of the lower box body.

[0014] As a further solution of the present invention: the detection modules are provided in a plurality of groups and arranged in a ring shape around the mounting plate; The fixing member is provided with a sliding groove along its direction, a plurality of pulleys are fixedly installed under the telescopic member, the pulleys are slidably installed in the sliding groove, and a limiting sliding groove is provided on the upper surface of the fixing member; The telescopic part is in the shape of an "I", with a head end block and a tail end block fixedly installed at both ends respectively, the head end block is located in the limiting slide groove, and the tail end block is located outside the limiting slide groove, electromagnets are arranged at both ends of the limiting slide groove, and the head end block is magnetic.

[0015] As a further solution of the present invention: a detection module is stacked below the detection module, and a fixing member of the detection module located below is fixedly connected to a telescopic member of the detection module located above it.

[0016] Compared with the prior art, the present invention has the following advantages: 1. At the moment of detecting a fire, the alarm text will be projected onto the wall through a projector, and the flashing light will attract people's attention. At the same time, voice broadcast will be made to facilitate visually impaired and hearing-impaired people to receive alarm information in time. The display screen will also simultaneously display the precise location of the fire, providing accurate information for personnel to plan escape routes and avoid the fire area.

[0017] 2. The detection unit and the alarm unit are designed to be separated, and the detection unit and the alarm unit in a building are interconnected through the Internet of Things. When the detection unit in one room detects a fire source, the alarm units in all the rooms in the building will issue an alarm message, and the alarm navigation mask will automatically fall off at the same time as the alarm is issued. The alarm navigation mask will scatter the moment it falls, making it convenient for people to pick it up. The alarm navigation mask is equipped with voice broadcast and text display functions to provide escape routes for trapped persons in real time. At the same time, the location information of the trapped persons will be synchronized to the rescue personnel to facilitate search and rescue by the rescue personnel.

[0018] 3. The smoke sensor is installed on the telescopic part. After the flame sensor detects the fire source, the telescopic part will extend quickly and move closer to the fire source, thereby improving the response efficiency of the smoke sensor, shortening the time from detection to alarm, and gaining more escape time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the installation structure of the present invention; Figure 2 It is a schematic diagram of the external structure of the alarm unit of the present invention; Figure 3 It is a schematic diagram of the internal structure of the alarm unit of the present invention; Figure 4 It is a schematic diagram of the external structure of the alarm unit of the present invention when the alarm navigation mask is in a non-falling state; Figure 5 It is a schematic diagram of the internal structure of the alarm unit of the present invention when the alarm navigation mask is in a non-falling state; Figure 6 It is a schematic diagram of the structure of the dispersed components and the alarm navigation mask of the present invention; Figure 7 This is a schematic diagram of the structure of the alarm navigation mask of the present invention; Figure 8 It is a structural schematic diagram of the left clamping block and the right clamping block of the present invention in a buckled state; Fig. 9It is a structural schematic diagram of the left clamping block and the right clamping block of the present invention in an open state; Fig.10 It is a schematic diagram of the installation structure of the telescopic plug of the present invention; Fig.11 It is a schematic diagram of the structure of the detection part of the present invention in a contracted state; Fig.12 It is a schematic diagram of the structure of the detection part of the present invention in the unfolded state; Fig.13 It is a structural schematic diagram of the detection part of the present invention in another angle in the unfolded state; Fig.14 It is a structural schematic diagram of the two groups of stacked detection modules of the present invention in a contracted state; Fig.15 It is a structural schematic diagram of two groups of stacked detection modules in the unfolded state of the present invention; Fig.16 It is a schematic diagram of the structure of the fixing member and the telescopic member of the present invention; Fig.17 It is a structural schematic diagram of the fixed part and the telescopic part of the present invention in the unfolded state; Fig.18 It is a framework diagram of the present invention.

[0020] In the figure: 100, detection unit; 110, mounting plate; 111, flame sensor; 120, detection module; 121, fixing member; 1211, sliding groove; 1212, limit sliding groove; 122, telescopic member; 1221, pulley; 123, head end block; 124, tail end block; 1241, smoke sensor; 200, alarm unit; 210, upper box; 211, projection lamp; 212, LED lamp; 213, controller; 220, lower box; 221, display screen; 222, automatic flap; 223, electric push rod; 230, partition; 231, dispersion slot; 300, alarm navigation mask; 310, filter Mask; 320, transparent eye mask; 330, control box; 331, charging jack; 340, universal connecting rod; 341, terminal display; 350, micro block; 351, left clamp block; 352, right clamp block; 353, spring; 400, dispersion component; 410, dispersion guide roller; 411, dispersion guide groove; 420, dispersion unit; 421, dispersion block; 4211, guide rod; 422, hanging wire; 4221, hanging ring; 430, fixed block; 440, rotating motor; 500, charging stand; 510, telescopic plug; 520, mounting slot; 521, micro spring; 530, electromagnet; 531, magnetic block. DETAILED DESCRIPTION

[0021] 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, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Reference Figure 1 - Fig.18 A building fire protection Internet of Things system alarm device includes a detection unit 100 and an alarm unit 200. The detection unit 100 is installed on the ceiling. During installation, a hollow decorative cover or decorative plate can be added under the detection unit 100 to hide the detection unit 100 to make it more beautiful. The alarm unit 200 is installed on the wall, preferably near the door of the room.

[0023] In a building, a detection unit 100 can be installed in each room and corridor and other areas, and an alarm unit 200 can be installed in each room. All the detection units 100 and alarm units 200 in the building are interconnected through the Internet of Things.

[0024] The alarm unit 200 includes an upper box 210, a lower box 220 and an alarm navigation mask 300. The upper box 210 and the lower box 220 are an integrated structure, separated by a partition 230 in the middle. The upper box 210 and the lower box 220 (especially the upper box 210) are made of fireproof and heat-insulating materials, wherein a projection lamp 211, an LED lamp 212 and a speaker are fixedly installed on the outside of the upper box 210, and a controller 213 is arranged inside the upper box 210. A microprocessor and a communication module are installed inside the controller 213. The controller 213 is connected to the Internet of Things and can be interconnected with the monitoring system and fire protection system in the building.

[0025] Once a detection unit 100 somewhere detects a fire, the alarm units 200 in all rooms in the building will sound an alarm at the same time. The alarm methods include text alarms, sound alarms and light alarms. Specifically, the LED lamp 212 emits a flashing light (which can be set to a colored light) to attract the attention of people in the room, and then the projection lamp 211 automatically projects a large text alarm such as "Fire alarm! Evacuate immediately!" onto the wall. At the same time, the speaker makes a sound, such as "Fire discovered on the fifth floor, please evacuate in an orderly manner from the left channel."

[0026] The simultaneous issuance of text alarms and sound alarms not only makes it easier for visually impaired and hearing-impaired people to receive alarm information, but also helps ordinary people quickly understand the cause of the alarm and the accurate alarm information.

[0027] In addition, a display screen 221 is provided on the outer surface of the lower box body 220, and text labels are also displayed on the display screen 221. The content of the text labels is the same as that of the speaker, such as "Fire discovered on the fifth floor, please evacuate in an orderly manner from the left channel." According to the location of the fire point (the location of the fire point is known through the location of the detection unit 100) and the location of each room, the escape direction prompted by the alarm will be different. For example, the room on the left side of the fire point reminds you to evacuate from the left channel, and the room on the right side of the fire point reminds you to evacuate from the right channel.

[0028] The functions of the display screen 221 and the loudspeaker are to provide people with accurate and detailed alarm information, as well as to plan escape routes and avoid fire areas. The functions of the projection lamp 211 and the display screen 221 are not the same. The text projected by the projection lamp 211 is more eye-catching, which can serve as a warning in the first place, and at the same time can attract people in the room to the location of the alarm unit 200, so that people can obtain the detailed information provided by the display screen 221 and the loudspeaker in time and facilitate the subsequent retrieval of the alarm navigation mask 300. It should be noted that the text projected by the projection lamp 211 is determined by the internal light sheet and cannot be temporarily changed. Therefore, as long as the projection lamp 211 is turned on, the pre-set alarm text will be projected onto the wall (the alarm text of the projection lamp 211 does not include specific fire point information).

[0029] like Figure 2 - Figure 5 As shown, a dispersion component 400 is arranged inside the upper box body 210, and the dispersion component 400 includes a dispersion guide roller 410 and a plurality of dispersion units 420, and an alarm navigation mask 300 is hoisted under each dispersion unit 420. The dispersion guide roller 410 is located in the upper box body 210, and two fixed blocks 430 are fixedly installed on the partition 230 at the bottom of the upper box body 210. Both ends of the dispersion guide roller 410 are rotatably installed with the two fixed blocks 430, and one end of the dispersion guide roller 410 is connected to a rotating motor 440. It can be seen that the dispersion guide roller 410 can be driven to rotate by the rotating motor 440.

[0030] The dispersion unit 420 includes a dispersion block 421 and a suspension line 422. The partition 230 is correspondingly provided with a dispersion groove 231 below the dispersion guide roller 410. The dispersion block 421 is slidably installed in the dispersion groove 231. The guide rod 4211 is fixedly installed on the top of the dispersion block 421, and the suspension line 422 is fixedly connected to the bottom. A hanging ring 4221 is fixedly installed at the end of the suspension line 422 for connecting the alarm navigation mask 300; a plurality of dispersion guide grooves 411 are provided on the surface of the dispersion guide roller 410, and the plurality of dispersion guide grooves 411 are arranged in a direction from gathering to dispersion with the symmetry center of the dispersion guide roller 410 as the gathering center, and a guide rod 4211 is slidably installed in each dispersion guide groove 411.

[0031] When the dispersion guide roller 410 rotates, the guide rod 4211 will slide along the dispersion guide groove 411. Since the dispersion block 421 is slidably installed in the dispersion groove 231, the guide rod 4211 and the dispersion block 421 can only move along the dispersion groove 231, and the movement trend is determined by the dispersion guide groove 411. The direction of the dispersion guide groove 411 is from gathering to dispersion, so the movement trend of the dispersion block 421 is from gathering to dispersion, or from dispersion to gathering. Since the alarm navigation mask 300 is suspended under the dispersion block 421, when the dispersion block 421 disperses, the alarm navigation mask 300 also disperses.

[0032] An automatic flap 222 is provided at the bottom of the lower box 220, and the automatic flap 222 is rotationally connected to the lower box 220, and the automatic flap 222 contacts the bottom of the alarm navigation mask 300. An electric push rod 223 for opening the automatic flap 222 is installed inside the lower box 220. One end of the electric push rod 223 is rotationally connected to the automatic flap 222, and the other end is rotationally connected to the inner wall of the lower box 220. When in use, the electric push rod 223 is extended to open the automatic flap 222, and the electric push rod 223 is retracted to close the automatic flap 222.

[0033] The alarm navigation mask 300 is stacked inside the lower box 220 in the initial state. When the alarm unit 200 sounds an alarm, the electric push rod 223 pushes the automatic flap 222 to open. At the same time, the alarm navigation mask 300 will automatically fall out of the lower box 220, and the alarm navigation mask 300 will automatically disperse while falling out, making it convenient for people to take it.

[0034] The lengths of the suspension wires 422 above the adjacent alarm navigation masks 300 are different, such as Figure 2 As shown, after falling out, they can be hung in two rows. This design is to facilitate people to quickly take them out. When taking them out, they only need to pull the alarm navigation mask 300 downwards with force.

[0035] A micro block 350 is fixedly installed on the top of the alarm navigation mask 300, and a left clamping block 351 and a right clamping block 352 are rotatably installed on the micro block 350. A spring 353 is fixedly installed between the left clamping block 351 and the right clamping block 352, and the left clamping block 351 and the right clamping block 352 are arranged in a hook shape, symmetrically installed with each other and buckled at the top, and the ring 4221 is clamped between the left clamping block 351 and the right clamping block 352 (such as Figure 8 as shown).

[0036] When a person pulls the alarm navigation mask 300 by hand, the tops of the left and right blocks 351 and 352 are pressed on the hanging ring 4221, and the left and right blocks 351 and 352 are pulled open (such as Fig. 9 as shown), thereby loosening the lifting ring 4221.

[0037] The alarm navigation mask 300 includes a filter mask 310, a transparent eye mask 320 and a control box 330. A GPS positioning module, a vibration module and a voice module are arranged inside the control box 330. Meanwhile, a universal connecting rod 340 is fixedly installed outside the control box 330, and a terminal display 341 is arranged at the end of the universal connecting rod 340. The filter mask 310, the transparent eye mask 320 and the control box 330 are fixed into an integrated structure, and fixing belts are arranged on the filter mask 310 and the transparent eye mask 320. When in use, the alarm navigation mask 300 is put on through the fixing belts. The filter mask 310 can filter smoke, and the transparent eye mask 320 can avoid being unable to open the eyes to see things due to smoke. Then, by adjusting the universal connecting rod 340, the position of the terminal display 341 is adjusted to the front of the eyes.

[0038] The terminal display 341 will display the escape route navigation, such as "turn left three meters ahead", and the voice module will broadcast the same content. The vibration module will vibrate to remind people when they deviate from the route, so as to guide the visually impaired and the hearing impaired to escape. In addition, ordinary people are prone to panic in a fire scene, and with the influence of smoke when a fire breaks out, people can easily get lost. The design of the terminal display 341 and the voice module can prevent people from going in the wrong direction when escaping.

[0039] If the fire blocks the exit and people cannot escape, the terminal display 341 and voice module will remind people to go to the bathroom or other areas to hide and wait for rescue, and will inform people of the precautions for avoiding fires, such as blocking vents with clothes, etc. At the same time, the location information of the trapped people will be synchronously uploaded to the fire protection system, and the rescue personnel can directly launch rescue according to the location information after arriving.

[0040] like Figure 2 - Fig.10 As shown, the charging base 500 is fixedly installed inside the lower box 220, and a plurality of mounting grooves 520 are provided on the charging base 500. A micro spring 521 is fixedly installed in the mounting groove 520, and the micro spring 521 is fixedly connected to the telescopic plug 510. An electromagnet 530 is arranged in the mounting groove 520, and a magnetic block 531 is arranged on the telescopic plug 510. When the electromagnet 530 is turned on, the magnetic field generated is attracted to the magnetic block 531, and the telescopic plug 510 is attracted and retracted into the mounting groove 520.

[0041] The control box 330 is provided with a charging socket 331, which matches the telescopic plug 510. The cross section of the telescopic plug 510 matches the cross section of the mounting groove 520. The cross section of the control box 330 is larger than the cross section of the mounting groove 520. When the telescopic plug 510 and the charging socket 331 are plugged in, the control box 330 is charged and a limit is provided for the alarm navigation mask 300 to fix the position of the alarm navigation mask 300. In the initial state, the alarm navigation mask 300 is overlapped with each other, and the control box 330 is connected to the telescopic plug 510. When the alarm sounds, the telescopic plug 510 retracts into the installation slot 520. At the same time, the automatic flap 222 opens, and the alarm navigation mask 300 loses the limit of the telescopic plug 510. There is no automatic flap 222 to support and block the bottom. The alarm navigation mask 300 will automatically fall down. It should be noted that at the moment the control box 330 is disconnected from the telescopic plug 510, the internal GPS positioning module, vibration module and voice module are automatically turned on.

[0042] like Fig.11 - Fig.16 As shown, the detection unit 100 includes a mounting plate 110 and a detection module 120. A flame sensor 111 is fixedly mounted on the lower surface of the mounting plate 110. Several groups of detection modules 120 are arranged in a ring shape around the mounting plate 110. The detection module 120 includes a fixing member 121 and a telescopic member 122. The fixing member 121 is fixedly connected to the mounting plate 110. The telescopic member 122 is slidably connected to the fixing member 121, and a smoke sensor 1241 is fixedly mounted on the end of the telescopic member 122.

[0043] The fixed part 121 is provided with a sliding groove 1211 along its direction, and a plurality of pulleys 1221 are fixedly installed under the telescopic part 122. The pulleys 1221 are slidably installed in the sliding groove 1211, and a limiting sliding groove 1212 is provided on the upper surface of the fixed part 121; the telescopic part 122 is in the shape of an "I", and a head end block 123 and a tail end block 124 are fixedly installed at both ends, the head end block 123 is located in the limiting sliding groove 1212, and the tail end block 124 is located outside the limiting sliding groove 1212, and electromagnets 530 are arranged at both ends of the limiting sliding groove 1212, and the head end block 123 is magnetic.

[0044] The flame sensor 111 has a wide detection range, a fast response speed, and is not affected by the environmental layout. It can detect flames at a long distance. Therefore, when a fire occurs in a room, the flame sensor 111 will detect the fire source before the smoke sensor 1241. However, using only the flame sensor 111 is prone to false alarms, so the flame sensor 111 is often used in conjunction with other sensors.

[0045] When the flame sensor 111 detects a fire source, the electromagnets 530 installed at both ends of the limiting slide 1212 will turn on to generate a magnetic field. The electromagnet 530 at the head end of the limiting slide 1212 repels the head end block 123, while the electromagnet 530 at the tail end of the limiting slide 1212 attracts the head end block 123. Therefore, the two sides of the head end block 123 push and attract at the same time, driving the telescopic part 122 to extend quickly, allowing the smoke sensor 1241 to approach the fire source, thereby achieving the purpose of shortening the response time of the smoke sensor 1241.

[0046] The detection module 120 can be stacked below the detection module 120, and the fixing member 121 of the detection module 120 located below is fixedly connected to the telescopic member 122 of the detection module 120 located above it (such as Fig.14 , Fig.15 As shown in the figure), when the telescopic member 122 on the upper layer is extended, it drives the lower fixed member 121 to move outward, and then the lower telescopic member 122 can be extended again. In this way, the detection range of the smoke sensor 1241 can be expanded, and the smoke sensor 1241 can be closer to the fire source.

[0047] The working process of the present invention is as follows: S1: The flame sensor 111 detects a flame, and the telescopic member 122 of the detection module 120 extends, so that the smoke sensor 1241 is closer to the fire source, thereby shortening the response time of the smoke sensor 1241; S2: The smoke sensor 1241 detects smoke, and the flame sensor 111 and the smoke sensor 1241 simultaneously feed back signals to the alarm unit 200; S3: The LED lamp 212 of the alarm unit 200 emits a flashing light, the projection lamp 211 projects the alarm information onto the wall, and the speaker emits an alarm sound. According to the position of the detection unit 100 that detects the fire source, the location of the fire source can be known, so the display screen 221 and the speaker will explain the specific location of the fire source and provide a suitable escape route; S4: the telescopic plug 510 is retracted, the automatic flap 222 is opened, and the alarm navigation mask 300 falls off; S5: People pull down the alarm navigation mask 300 and wear it; S6: The terminal display 341 and the voice module on the alarm navigation mask 300 provide people with an escape route. The vibration module will vibrate to remind people when they deviate, and will upload people's location to the fire protection system.

[0048] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A building fire protection Internet of Things system alarm device, comprising a detection unit (100) and an alarm unit (200), characterized in that: The detection unit (100) comprises a mounting plate (110) and a detection module (120); a flame sensor (111) is fixedly mounted on the lower surface of the mounting plate (110); the detection module (120) comprises a fixing member (121) and a telescopic member (122); the fixing member (121) is fixedly connected to the mounting plate (110); the telescopic member (122) is slidably connected to the fixing member (121); and a smoke sensor (1241) is fixedly mounted on the end of the telescopic member (122); The alarm unit (200) comprises an upper box (210), a lower box (220) and an alarm navigation mask (300); the upper box (210) and the lower box (220) are of an integrated structure and are separated by a partition (230); a projection lamp (211), an LED lamp (212) and a speaker are fixedly installed on the outside of the upper box (210); a controller (213) and a dispersion component (400) are arranged inside the upper box (210); the dispersion component (400) comprises a dispersion guide roller (410) and a plurality of dispersion units (420); an alarm navigation mask (300) is correspondingly hoisted below each dispersion unit (420); and the alarm navigation mask (300) is located inside the lower box (220); a display screen (221) is arranged on the outer surface of the lower box (220), and a telescopic plug (510) is arranged inside.

2. The building fire protection Internet of Things system alarm device according to claim 1 is characterized in that: The dispersion guide roller (410) is located in the upper box (210), two fixed blocks (430) are fixedly mounted on the partition (230) at the bottom of the upper box (210), two ends of the dispersion guide roller (410) are rotatably mounted on the two fixed blocks (430), and one end of the dispersion guide roller (410) is connected to a rotating motor (440); The dispersion unit (420) comprises a dispersion block (421) and a suspension line (422); a dispersion groove (231) is correspondingly arranged below the dispersion guide roller (410) on the partition plate (230); the dispersion block (421) is slidably mounted in the dispersion groove (231); a guide rod (4211) is fixedly mounted on the top of the dispersion block (421); and the suspension line (422) is fixedly connected to the bottom; a suspension ring (4221) is fixedly mounted on the end of the suspension line (422) for connecting to an alarm navigation mask (300); The surface of the dispersion guide roller (410) is provided with a plurality of dispersion guide grooves (411), and the plurality of dispersion guide grooves (411) are arranged in a direction from gathering to dispersion with the symmetry center of the dispersion guide roller (410) as a gathering center, and a guide rod (4211) is slidably installed in each dispersion guide groove (411).

3. The building fire protection Internet of Things system alarm device according to claim 2 is characterized in that: The alarm navigation mask (300) comprises a filter mask (310), a transparent eye mask (320) and a control box (330); a GPS positioning module, a vibration module and a voice module are arranged inside the control box (330); a universal connecting rod (340) is fixedly installed outside the control box (330); a terminal display (341) is arranged at the end of the universal connecting rod (340); A micro block (350) is fixedly mounted on the top of the alarm navigation mask (300); a left clamping block (351) and a right clamping block (352) are rotatably mounted on the micro block (350); a spring (353) is fixedly mounted between the left clamping block (351) and the right clamping block (352); the left clamping block (351) and the right clamping block (352) are arranged in a hook shape, symmetrically mounted with the top ends thereof, and the lifting ring (4221) is clamped between the left clamping block (351) and the right clamping block (352).

4. The building fire protection Internet of Things system alarm device according to claim 3 is characterized in that: The filter mask (310), transparent eye mask (320), and control box (330) of the alarm navigation mask (300) are fixed into an integrated structure, and fixing belts are provided on the filter mask (310) and transparent eye mask (320), and the lengths of the suspension wires (422) above adjacent alarm navigation masks (300) are different.

5. The alarm device for building fire protection Internet of Things system according to claim 4 is characterized in that: An automatic flap (222) is provided at the bottom of the lower box (220), the automatic flap (222) is rotatably connected to the lower box (220), and the automatic flap (222) is in contact with the bottom of the alarm navigation mask (300), and an electric push rod (223) for opening the automatic flap (222) is installed inside the lower box (220), one end of the electric push rod (223) is rotatably connected to the automatic flap (222), and the other end is rotatably connected to the inner wall of the lower box (220).

6. The alarm device for building fire protection Internet of Things system according to claim 5 is characterized in that: A charging seat (500) is fixedly installed inside the lower box (220), a plurality of installation slots (520) are provided on the charging seat (500), micro springs (521) are fixedly installed in the installation slots (520), the micro springs (521) are fixedly connected to the telescopic plug (510), an electromagnet (530) is arranged in the installation slots (520), and a magnetic block (531) is provided on the telescopic plug (510).

7. The building fire protection Internet of Things system alarm device according to claim 6, characterized in that: The control box (330) is provided with a charging socket (331), the charging socket (331) matches the telescopic plug (510), the cross-section of the telescopic plug (510) matches the cross-section of the mounting groove (520), the cross-section of the control box (330) is larger than the cross-section of the mounting groove (520), and when the micro spring (521) is in a compressed state, the telescopic plug (510) retracts into the mounting groove (520).

8. The building fire protection Internet of Things system alarm device according to claim 1 is characterized in that: The detection modules (120) are provided in a plurality of groups and are arranged in a ring shape around the mounting plate (110); The fixing member (121) is provided with a sliding groove (1211) along its direction, a plurality of pulleys (1221) are fixedly installed below the telescopic member (122), the pulleys (1221) are slidably installed in the sliding groove (1211), and a limiting sliding groove (1212) is provided on the upper surface of the fixing member (121); The telescopic member (122) is in the shape of an "I" character, with a head end block (123) and a tail end block (124) respectively fixedly mounted at the head and tail ends, the head end block (123) being located inside the limiting slide groove (1212), the tail end block (124) being located outside the limiting slide groove (1212), electromagnets (530) being arranged at both the head and tail ends of the limiting slide groove (1212), and the head end block (123) being magnetic.

9. The building fire protection Internet of Things system alarm device according to claim 8, characterized in that: A detection module (120) is stacked below the detection module (120), and the fixing member (121) of the detection module (120) located below is fixedly connected to the telescopic member (122) of the detection module (120) located above it.

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