Fire safety linear fire detection and extinguishing device

Abstract

The invention relates to the technical field of fire detectors, in particular to a fire safety linear fire detection and extinguishing device which comprises a ceiling wall used for fixing detection equipment. The fire extinguishing part is arranged at the bottom of the ceiling wall body, and the fire extinguishing part is used for controlling fire behavior; and the magnetic attraction part is arranged at the bottom of the ceiling wall body. A magnetic attraction box is powered off again, an iron block drives a sliding rod and a first toothed plate to descend, at the moment, a second toothed plate descends, a first gear and a first rotating rod rotate, a cam is driven to rotate, a cam rod moves back and forth, a sliding sleeve pulls a swing rope to move back and forth, a bell is shaken, and an alarm is given; when fire occurs, the connecting frame and the sealing plug are driven to descend, so that the sealing plug breaks away from sealing of the air pipe, carbon dioxide gas in the air bag is sprayed out, the oxygen content in air is reduced, and fire spreading is delayed.

Description

Technical Field

[0001] The present invention relates to the technical field of fire detectors, and particularly to a fire safety linear fire detection and extinguishing device. Background Art

[0002] A fire detector is a device that explores the scene and discovers fires in a fire automatic alarm system for fire protection. The fire detector is the "sensory organ" of the system. Its function is to monitor whether there is a fire in the environment. Once there is a fire, it converts the characteristic physical quantities of the fire, such as temperature, smoke, gas, and radiant light intensity, into electrical signals and immediately activates to send an alarm signal to the fire alarm controller.

[0003] According to the Chinese patent application publication number CN111445658B, a fire detector is disclosed. The fire detector of the present invention includes a housing and a fixing seat. A slideway is provided on the fixing seat, and further includes: a first conductor and a second conductor, which are respectively fixed to the fixing seat in an electrically isolated manner, a bridging piece, which has two abutting parts, the bridging piece is slidably sleeved on a trigger slide bar, a compression elastic member, which is sleeved on a trigger slide bar in a compressed energy storage state, a trigger slide bar, which is slidably positioned in the slideway of the fixing seat, the trigger slide bar has a constant limiting end and a releasable limiting end, a low melting point alloy, which is welded and fixed to the releasable limiting end. When the bridging piece is in the initial position or the trigger position, the bridging piece and the two contact heads of the first conductor and the second conductor are in a bridging conduction state or an electrically insulated state, thus realizing a switch change. The present invention can be used for fire detection; However, the above-mentioned fire detector cannot be used during a power outage. During a power outage, if a fire breaks out indoors, the fire detector cannot detect the fire and cannot give an alarm, and the fire may spread rapidly, making it difficult to effectively suppress the fire, posing a greater potential safety hazard. Summary of the Invention

[0004] Therefore, the present invention provides a fire safety linear fire detection and extinguishing device to solve the above problems.

[0005] The present invention provides the following technical solutions: A fire safety linear fire detection and extinguishing device includes a ceiling wall, and the ceiling wall is used to fix the detection device; An extinguishing component, an extinguishing component is provided at the bottom of the ceiling wall, and the extinguishing component is used to control the fire situation; A magnetic attraction component, a magnetic attraction component is provided at the bottom of the ceiling wall, and the magnetic attraction component is used for secondary control of the detection device; An alarm component, an alarm component is provided at the bottom of the ceiling wall, and the alarm component is used to give an alarm during a fire.

[0006] As a preferred embodiment of the present invention, the fire extinguishing component includes a support frame. Both the left and right sides of the support frame are fixedly connected with connection frames. Through holes are formed through the tops of the connection frames. A connecting rod is fixedly connected to the bottom of the ceiling wall. The bottom of the connecting rod is fixedly connected to the top of the connection frame. The magnetic attraction component includes a first L-shaped plate. The bottom of the first L-shaped plate is fixedly connected to the top of the support frame. The number of the first L-shaped plates is two, and the two first L-shaped plates are symmetrically distributed left and right. A backup power supply is fixedly connected to the side of the bottom of the first L-shaped plate away from the support frame. A magnetic attraction box is fixedly connected to the side of the bottom of the first L-shaped plate close to the support frame. An iron block is slidably connected to the inner wall of the magnetic attraction box. A sliding rod is fixedly connected to the inner wall of the iron block. The surface of the sliding rod is slidably connected to the inner wall of the through hole. A first toothed plate is fixedly sleeved on the surface of the sliding rod. A second toothed plate is fixedly connected to the bottom of the first toothed plate.

[0007] As a preferred embodiment of the present invention, the number of the connecting rods is four. The two connecting rods on the left and the two connecting rods on the right are both symmetrically distributed front and back. The two connecting rods on the left and the two connecting rods on the right are symmetrically distributed left and right.

[0008] As a preferred embodiment of the present invention, the output end of the backup power supply is electrically connected to a thermistor. The output end of the thermistor is electrically connected to the receiving end of the magnetic attraction box.

[0009] As a preferred embodiment of the present invention, the alarm component includes a second L-shaped plate. One side of the second L-shaped plate is fixedly connected to the side of the connection frame away from the support frame. A first rotating rod is rotatably connected to the inner wall of the second L-shaped plate. A first gear is fixedly sleeved on the front side of the surface of the first rotating rod. The first gear meshes with the second toothed plate. A cam is fixedly sleeved on the rear side of the surface of the first rotating rod. A first limiting plate is fixedly connected to the back surface of the second L-shaped plate. A sliding sleeve is slidably sleeved on the surface of the first limiting plate. A cam rod is fixedly connected to the bottom of the sliding sleeve. A bell rope is fixedly connected to the top of the sliding sleeve. A bell is fixedly sleeved on the surface of the bell rope. The top of the bell rope is fixedly connected to the bottom of the second L-shaped plate. The cam rod is in contact with the inner wall of the cam.

[0010] As a preferred embodiment of the present invention, a support plate is fixedly connected to the rear side of the bottom of the first L-shaped plate. A second rotating rod is rotatably connected to the inner wall of the support plate. A second gear is fixedly sleeved on the surface of the second rotating rod. The second gear meshes with the first toothed plate. A second limiting plate is fixedly connected to the center of the bottom of the first L-shaped plate. An L-shaped toothed plate is slidably sleeved on the surface of the second limiting plate. The L-shaped toothed plate meshes with the second gear.

[0011] As a preferred embodiment of the present invention, a connecting frame is fixedly connected to the bottom of the sliding rod, a sealing plug is fixedly connected to the top of the connecting frame, a fixing groove is formed through the top of the support frame, an airbag is fixedly connected to the top of the support frame, an air pipe is fixedly connected to the output end of the airbag, and the output end of the air pipe is fixedly connected to the inner wall of the fixing groove. A fire detector is fixedly connected to the bottom of the support frame, and the output end of the fire detector is electrically connected to the receiving end of the magnetic attraction box. The airbag is filled with carbon dioxide gas.

[0012] As a preferred embodiment of the present invention, the inner wall of the air pipe abuts against the outer wall of the sealing plug. The number of the air pipes is eight, and the number of the sealing plugs is eight. The inner walls of the eight air pipes are respectively slidably connected to the outer walls of the eight sealing plugs.

[0013] As a preferred embodiment of the present invention, a conductive sheet is fixedly arranged on the inner wall of the backup power supply, a conductive rod is fixedly connected to the top of the L-shaped toothed plate, and the outer wall of the conductive rod is slidably connected to the inner wall of the backup power supply.

[0014] As a preferred embodiment of the present invention, an external alarm is electrically connected to the output end of the fire detector.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In the present invention, when a power outage occurs, the fire detector cannot work at this time, and the fire detector does not supply power to the magnetic attraction box. The iron block loses the magnetic support and slides down, causing the first toothed plate to slide down, driving the second gear and the second rotating rod to rotate, causing the L-shaped toothed plate to rise, making the conductive rod contact the conductive sheet, enabling the backup power supply to be powered on, and the magnetic attraction box generates magnetic force again to adsorb the iron block. The distance between the conductive rod and the conductive sheet is less than the length of the sealing plug inserted into the air pipe. When the backup power supply is powered on, the air pipe is still in a sealed state, thereby avoiding the carbon dioxide gas inside the airbag from spraying out and the bell ringing for alarm when a power outage occurs.

[0016] 2. In the present invention, when a fire breaks out during a power outage, the fire detector cannot work at this time. The fire detector does not supply power to the magnetic attraction box, and the iron block loses the magnetic force support and slides down, causing the first toothed plate to slide down, driving the second gear and the second rotating rod to rotate, causing the L-shaped toothed plate to rise, causing the conductive rod to contact the conductive sheet, enabling the backup power supply to be energized, and the magnetic attraction box generates magnetic force again to adsorb the iron block. Due to the high temperature during a fire, the resistance value of the thermistor increases at this time, resulting in the magnetic attraction box being powered off again and the iron block driving the sliding rod and the first toothed plate to descend. At this time, the second toothed plate descends, causing the first gear and the first rotating rod to rotate, thereby driving the cam to rotate, causing the cam rod to move back and forth, causing the sliding sleeve to pull the ringing rope to move back and forth, thereby ringing the bell for alarm. While the sliding rod descends, it will drive the connecting frame and the sealing plug to descend, causing the sealing plug to disengage from the sealing of the air pipe. At this time, the carbon dioxide gas inside the airbag is ejected, reducing the oxygen content in the air, thereby delaying the spread of the fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a bottom view of the overall structure of the present invention; Figure 3 is an exploded view of the structure of the fire extinguishing component of the present invention; Figure 4 is a schematic diagram of the structure of the magnetic attraction component of the present invention; Figure 5 is a schematic diagram of the structure of the sealing plug of the present invention; Figure 6 is an enlarged view of the structure at A of the present invention; Figure 7 is an enlarged view of the structure at B of the present invention.

[0018] In the figure: 1, ceiling wall; 2, fire extinguishing component; 3, magnetic attraction component; 4, alarm component; 5, connecting frame; 6, connecting rod; 7, through hole; 201, support frame; 202, fire detector; 203, fixing groove; 204, airbag; 205, air pipe; 301, first L-shaped plate; 302, connecting frame; 303, sealing plug; 304, sliding rod; 305, backup power supply; 306, conductive sheet; 307, thermistor; 308, magnetic attraction box; 309, iron block; 310, support plate; 311, second toothed plate; 312, first toothed plate; 313, second limiting plate; 314, L-shaped toothed plate; 315, second gear; 316, second rotating rod; 317, conductive rod; 401, second L-shaped plate; 402, bell; 403, first rotating rod; 404, first gear; 405, ringing rope; 406, sliding sleeve; 407, first limiting plate; 408, cam rod; 409, cam. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figure 1-7 The technical solutions provided by the present invention specifically include the following embodiments: Embodiment 1: A linear fire detection and extinguishing device for fire safety, including a ceiling wall 1, and the ceiling wall 1 is used to fix the detection device; An extinguishing component 2, and the extinguishing component 2 is provided at the bottom of the ceiling wall 1, and the extinguishing component 2 is used to control the fire; A magnetic attraction component 3, and the magnetic attraction component 3 is provided at the bottom of the ceiling wall 1, and the magnetic attraction component 3 is used for secondary control of the detection device; An alarm component 4, and the alarm component 4 is provided at the bottom of the ceiling wall 1, and the alarm component 4 is used to give an alarm during a fire.

[0021] Specifically in this embodiment, the extinguishing component 2 includes a support frame 201. Both the left and right sides of the support frame 201 are fixedly connected with connection frames 5. Through holes 7 are formed through the tops of the connection frames 5. A connecting rod 6 is fixedly connected to the bottom of the ceiling wall 1, and the bottom of the connecting rod 6 is fixedly connected to the top of the connection frame 5; the magnetic attraction component 3 includes a first L-shaped plate 301. The bottom of the first L-shaped plate 301 is fixedly connected to the top of the support frame 201. The number of the first L-shaped plates 301 is two, and the two first L-shaped plates 301 are symmetrically distributed left and right. A backup power supply 305 is fixedly connected to the side of the bottom of the first L-shaped plate 301 away from the support frame 201. A magnetic attraction box 308 is fixedly connected to the side of the bottom of the first L-shaped plate 301 close to the support frame 201. An iron block 309 is slidably connected to the inner wall of the magnetic attraction box 308. A sliding rod 304 is fixedly connected to the inner wall of the iron block 309. The surface of the sliding rod 304 is slidably connected to the inner wall of the through hole 7. A first toothed plate 312 is fixedly sleeved on the surface of the sliding rod 304. A second toothed plate 311 is fixedly connected to the bottom of the first toothed plate 312; the output end of the backup power supply 305 is electrically connected to a thermistor 307, and the output end of the thermistor 307 is electrically connected to the receiving end of the magnetic attraction box 308; Specifically, the magnetic attraction box 308 is an assembled structure with an electromagnetic coil installed inside an insulating box, and the iron block 309 is magnetically attracted by the electromagnetic force generated by the energization of the electromagnetic coil.

[0022] A support plate 310 is fixedly connected to the rear side of the bottom of the first L-shaped plate 301. A second rotating rod 316 is rotatably connected to the inner wall of the support plate 310. A second gear 315 is fixedly sleeved on the surface of the second rotating rod 316. The second gear 315 meshes with the first toothed plate 312. A second limiting plate 313 is fixedly connected to the center of the bottom of the first L-shaped plate 301. An L-shaped toothed plate 314 is slidably sleeved on the surface of the second limiting plate 313. The L-shaped toothed plate 314 meshes with the second gear 315. A connecting frame 302 is fixedly connected to the bottom of the sliding rod 304. A sealing plug 303 is fixedly connected to the top of the connecting frame 302. A fixing groove 203 is penetrated and opened at the top of the support frame 201. An airbag 204 is fixedly connected to the top of the support frame 201. An air pipe 205 is fixedly connected to the output end of the airbag 204. The output end of the air pipe 205 is fixedly connected to the inner wall of the fixing groove 203. A fire detector 202 is fixedly connected to the bottom of the support frame 201. The output end of the fire detector 202 is electrically connected to the receiving end of the magnetic attraction box 308. Carbon dioxide gas is filled in the airbag 204. The inner wall of the air pipe 205 abuts against the outer wall of the sealing plug 303. The number of the air pipes 205 is eight. The number of the sealing plugs 303 is eight. The inner walls of the eight air pipes 205 are respectively slidably connected to the outer walls of the eight sealing plugs 303. A conductive sheet 306 is fixedly arranged on the inner wall of the backup power supply 305. A conductive rod 317 is fixedly connected to the top of the L-shaped toothed plate 314. The outer wall of the conductive rod 317 is slidably connected to the inner wall of the backup power supply 305. The number of the connecting rods 6 is four. The two connecting rods 6 on the left and the two connecting rods 6 on the right are both symmetrically distributed front and back. The two connecting rods 6 on the left and the two connecting rods 6 on the right are symmetrically distributed left and right. Specifically, the fire detector 202 is a kind of smoke fire detector. A smoke fire detector is a fire detector that responds to solid or liquid particles generated by combustion or pyrolysis. It is the most widely used fire detector because it can detect the concentration of aerosol or smoke particles generated in the initial stage of material combustion.

[0023] The output end of the fire detector 202 is electrically connected to an external alarm. When a fire occurs while the power is normally supplied, at this time, the fire detector 202 completes the detection of the fire and performs an alarm operation through the external alarm.

[0024] The alarm component 4 includes a second L-shaped plate 401. One side of the second L-shaped plate 401 is fixedly connected to the side of the connection frame 5 away from the support frame 201. A first rotating rod 403 is rotatably connected to the inner wall of the second L-shaped plate 401. A first gear 404 is fixedly sleeved on the front side of the surface of the first rotating rod 403. The first gear 404 meshes with the second toothed plate 311. A cam 409 is fixedly sleeved on the rear side of the surface of the first rotating rod 403. A first limiting plate 407 is fixedly connected to the back surface of the second L-shaped plate 401. A sliding sleeve 406 is slidably sleeved on the surface of the first limiting plate 407. A cam rod 408 is fixedly connected to the bottom of the sliding sleeve 406. A bell rope 405 is fixedly connected to the top of the sliding sleeve 406. A bell 402 is fixedly sleeved on the surface of the bell rope 405. The top of the bell rope 405 is fixedly connected to the bottom of the second L-shaped plate 401. The cam rod 408 is in contact with the inner wall of the cam 409; The transmission mode between the cam 409 and the cam rod 408 is cam transmission. The cam 409 is a cylindrical cam. In this cam mechanism, the relative movement between the cam 409 and the cam rod 408 is a spatial movement. And the end of the cam rod 408 is in contact with the guiding groove opened on the inner wall of the cam 409, and it is a component that transmits power and realizes a predetermined motion law, so that it can perform reciprocating linear motion or swinging.

[0025] When a fire occurs while the power is normally supplied, at this time the fire detector 202 completes the detection of the fire and performs an alarm operation through the external alarm. When it is detected that the fire is relatively large, in order to delay the spread of the fire, the magnetic suction box 308 is closed, and the iron block 309 loses the magnetic support and slides down, causing the first toothed plate 312 to slide down, driving the second gear 315 and the second rotating rod 316 to rotate, causing the L-shaped toothed plate 314 to rise, causing the conductive rod 317 to contact the conductive sheet 306, making the backup power supply 305 energized, and the magnetic suction box 308 generates magnetic force again to adsorb the iron block 309. Due to the high temperature during the fire, the resistance value of the thermistor 307 increases at this time, resulting in the magnetic suction box 308 being powered off again and the iron block 309 driving the slide bar 304 and the first toothed plate 312 to descend. While the slide bar 304 descends, it will drive the connecting frame 302 and the sealing plug 303 to descend, causing the sealing plug 303 to disengage from the sealing of the air pipe 205. At this time, the carbon dioxide gas inside the airbag 204 is ejected, reducing the oxygen content in the air, thereby delaying the spread of the fire; During a power outage, the fire detector 202 cannot work at this time. The fire detector 202 does not supply power to the magnetic attraction box 308. The iron block 309 loses the magnetic support and slides down, causing the first toothed plate 312 to slide down, driving the second gear 315 and the second rotating rod 316 to rotate, causing the L-shaped toothed plate 314 to rise, causing the conductive rod 317 to contact the conductive sheet 306, enabling the backup power supply 305 to be energized. The magnetic attraction box 308 generates magnetic force again to adsorb the iron block 309. Among them, the distance between the conductive rod 317 and the conductive sheet 306 is less than the length of the sealing plug 303 inserted into the air pipe 205. When the backup power supply 305 is energized, the air pipe 205 remains sealed, thus preventing the carbon dioxide gas inside the airbag 204 from spraying out during a power outage, and the bell 402 rings for alarm; When a fire breaks out during a power outage, the fire detector 202 cannot work at this time. The fire detector 202 does not supply power to the magnetic attraction box 308. The iron block 309 loses the magnetic support and slides down, causing the first toothed plate 312 to slide down, driving the second gear 315 and the second rotating rod 316 to rotate, causing the L-shaped toothed plate 314 to rise, causing the conductive rod 317 to contact the conductive sheet 306, enabling the backup power supply 305 to be energized. The magnetic attraction box 308 generates magnetic force again to adsorb the iron block 309. Due to the high temperature during a fire, the resistance value of the thermistor 307 increases at this time, resulting in the magnetic attraction box 308 being powered off again. The iron block 309 drives the sliding rod 304 and the first toothed plate 312 to descend. At this time, the second toothed plate 311 descends, causing the first gear 404 and the first rotating rod 403 to rotate, thereby driving the cam 409 to rotate, causing the cam rod 408 to move back and forth, causing the sliding sleeve 406 to pull the bell rope 405 to move back and forth, thus ringing the bell 402 for alarm. While the sliding rod 304 descends, it will drive the connecting frame 302 and the sealing plug 303 to descend, causing the sealing plug 303 to disengage from the sealing of the air pipe 205. At this time, the carbon dioxide gas inside the airbag 204 sprays out, reducing the oxygen content in the air, thereby delaying the spread of the fire.

[0026] Working principle: When a fire breaks out while the power supply is normal during the operation of a linear fire detection and extinguishing device for fire safety in this solution, the fire detector 202 completes the detection of the fire at this time and performs an alarm operation through an external alarm. When the detected fire is relatively large, in order to delay the spread of the fire, the magnetic suction box 308 is closed, and the iron block 309 loses the magnetic support and slides down, causing the first toothed plate 312 to slide down, driving the second gear 315 and the second rotating rod 316 to rotate, causing the L-shaped toothed plate 314 to rise, making the conductive rod 317 contact the conductive sheet 306, enabling the backup power supply 305 to be energized, and the magnetic suction box 308 generates magnetic force again to adsorb the iron block 309. Due to the high temperature during the fire, the resistance value of the thermistor 307 increases at this time, resulting in the magnetic suction box 308 being powered off again, and the iron block 309 drives the sliding rod 304 and the first toothed plate 312 to descend. While the sliding rod 304 descends, it will drive the connecting frame 302 and the sealing plug 303 to descend, causing the sealing plug 303 to disengage from the sealing of the air pipe 205. At this time, the carbon dioxide gas inside the airbag 204 is ejected, reducing the oxygen content in the air, thereby delaying the spread of the fire; During a power outage, the fire detector 202 cannot work at this time, and the fire detector 202 does not supply power to the magnetic suction box 308. The iron block 309 loses the magnetic support and slides down, causing the first toothed plate 312 to slide down, driving the second gear 315 and the second rotating rod 316 to rotate, causing the L-shaped toothed plate 314 to rise, making the conductive rod 317 contact the conductive sheet 306, enabling the backup power supply 305 to be energized, and the magnetic suction box 308 generates magnetic force again to adsorb the iron block 309. The distance between the conductive rod 317 and the conductive sheet 306 is less than the length of the sealing plug 303 inserted into the air pipe 205. When the backup power supply 305 is energized, the air pipe 205 remains sealed, thereby preventing the carbon dioxide gas inside the airbag 204 from being ejected during a power outage, and the bell 402 gives an alarm; When a fire breaks out during a power outage, the fire detector 202 cannot work at this time. The fire detector 202 does not supply power to the magnetic attraction box 308, and the iron block 309 loses magnetic support and slides down, causing the first toothed plate 312 to slide down, driving the second gear 315 and the second rotating rod 316 to rotate, causing the L-shaped toothed plate 314 to rise, causing the conductive rod 317 to contact the conductive sheet 306, enabling the backup power supply 305 to be powered on. The magnetic attraction box 308 generates magnetic force again to adsorb the iron block 309. Due to the high temperature during a fire, the resistance value of the thermistor 307 increases at this time, resulting in the magnetic attraction box 308 being powered off again. The iron block 309 drives the sliding rod 304 and the first toothed plate 312 to descend. At this time, the second toothed plate 311 descends, causing the first gear 404 and the first rotating rod 403 to rotate, thereby driving the cam 409 to rotate, causing the cam rod 408 to move back and forth, causing the sliding sleeve 406 to pull the shaking rope 405 to move back and forth, thereby ringing the bell 402 for alarm. While the sliding rod 304 descends, it will drive the connecting frame 302 and the sealing plug 303 to descend, causing the sealing plug 303 to disengage from the sealing of the air pipe 205. At this time, the carbon dioxide gas inside the airbag 204 is ejected, reducing the oxygen content in the air, thereby delaying the spread of the fire.

[0027] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A fire safety linear fire detection and extinguishing device, characterized in that: It comprises a ceiling wall (1), wherein the ceiling wall (1) is used to fix the detection equipment; A fire extinguishing component (2), wherein the bottom of the ceiling wall (1) is provided with a fire extinguishing component (2), and the fire extinguishing component (2) is used to control the fire; A magnetic attraction component (3), wherein the bottom of the ceiling wall (1) is provided with a magnetic attraction component (3), and the magnetic attraction component (3) is used for secondary control of the detection device; An alarm component (4) is provided at the bottom of the ceiling wall (1), and the alarm component (4) is used to give an alarm in case of fire.

2. A fire safety linear fire detection and extinguishing device according to claim 1, characterized in that: The fire extinguishing component (2) comprises a support frame (201), the left and right sides of the support frame (201) are fixedly connected to connection frames (5), the top of the connection frame (5) is penetrated by a through hole (7), the bottom of the ceiling wall (1) is fixedly connected to a connection rod (6), and the bottom of the connection rod (6) is fixedly connected to the top of the connection frame (5); The magnetic attraction component (3) comprises a first L-shaped plate (301), the bottom of the first L-shaped plate (301) is fixedly connected to the top of the support frame (201), the number of the first L-shaped plates (301) is two, and the two first L-shaped plates (301) are symmetrically distributed on the left and right sides, the side of the bottom of the first L-shaped plate (301) away from the support frame (201) is fixedly connected to a backup power supply (305), the side of the bottom of the first L-shaped plate (301) close to the support frame (201) is fixedly connected to a magnetic attraction box (308), the inner wall of the magnetic attraction box (308) is slidably connected to an iron block (309), the inner wall of the iron block (309) is fixedly connected to a sliding rod (304), the surface of the sliding rod (304) is slidably connected to the inner wall of the through hole (7), the surface of the sliding rod (304) is fixedly sleeved with a first tooth plate (312), and the bottom of the first tooth plate (312) is fixedly connected to a second tooth plate (311).

3. A fire safety linear fire detection and extinguishing device according to claim 2, characterized in that: The number of the connecting rods (6) is four, the two connecting rods (6) on the left side and the two connecting rods (6) on the right side are both symmetrically distributed front to back, and the two connecting rods (6) on the left side and the two connecting rods (6) on the right side are symmetrically distributed left to right.

4. A fire safety linear fire detection and extinguishing device according to claim 2, characterized in that: The output end of the backup power supply (305) is electrically connected to a thermistor (307), and the output end of the thermistor (307) is electrically connected to a receiving end of the magnetic suction box (308).

5. A fire safety linear fire detection and extinguishing device according to claim 2, characterized in that: The alarm component (4) comprises a second L-shaped plate (401), one side of the second L-shaped plate (401) is fixedly connected to a side of the connection frame (5) away from the support frame (201), the inner wall of the second L-shaped plate (401) is rotatably connected to a first rotating rod (403), a front fixed sleeve on the surface of the first rotating rod (403) is provided with a first gear (404), the first gear (404) is meshed with a second gear plate (311), a rear fixed sleeve on the surface of the first rotating rod (403) is provided with a cam (409), and the second L-shaped plate The back surface of the first limiting plate (407) is fixedly connected to the first limiting plate (407); the surface sliding sleeve of the first limiting plate (407) is provided with a sliding sleeve (406); the bottom of the sliding sleeve (406) is fixedly connected to a cam rod (408); the top of the sliding sleeve (406) is fixedly connected to a rocking rope (405); the surface fixed sleeve of the rocking rope (405) is provided with a rattle (402); the top of the rocking rope (405) is fixedly connected to the bottom of the second L-shaped plate (401); and the cam rod (408) is in contact with the inner wall of the cam (409).

6. A fire safety linear fire detection and extinguishing device according to claim 2, characterized in that: A support plate (310) is fixedly connected to the rear side of the bottom of the first L-shaped plate (301); a second rotating rod (316) is rotatably connected to the inner wall of the support plate (310); a second gear (315) is fixedly sleeved on the surface of the second rotating rod (316); the second gear (315) is meshed with the first toothed plate (312); a second limiting plate (313) is fixedly connected to the center of the bottom of the first L-shaped plate (301); an L-shaped toothed plate (314) is slidably sleeved on the surface of the second limiting plate (313); the L-shaped toothed plate (314) is meshed with the second gear (315).

7. A fire safety linear fire detection and extinguishing device according to claim 2, characterized in that: The bottom of the sliding rod (304) is fixedly connected to a connecting frame (302), the top of the connecting frame (302) is fixedly connected to a sealing plug (303), the top of the supporting frame (201) is provided with a fixing groove (203), the top of the supporting frame (201) is fixedly connected to an air bag (204), the output end of the air bag (204) is fixedly connected to an air pipe (205), the output end of the air pipe (205) is fixedly connected to the inner wall of the fixing groove (203), the bottom of the supporting frame (201) is fixedly connected to a fire detector (202), the output end of the fire detector (202) is electrically connected to a receiving end of a magnetic suction box (308), and carbon dioxide gas is filled inside the air bag (204).

8. A fire safety linear fire detection and extinguishing device according to claim 7, characterized in that: The inner wall of the air pipe (205) is in contact with the outer wall of the sealing plug (303); there are eight air pipes (205) and eight sealing plugs (303); the inner walls of the eight air pipes (205) are slidably connected to the outer walls of the eight sealing plugs (303), respectively.

9. A fire safety linear fire detection and extinguishing device according to claim 6, characterized in that: A conductive sheet (306) is fixedly provided on the inner wall of the backup power supply (305), a conductive rod (317) is fixedly connected to the top of the L-shaped toothed plate (314), and an outer wall of the conductive rod (317) is slidably connected to the inner wall of the backup power supply (305).

10. A fire safety linear fire detection and extinguishing device according to claim 7, characterized in that: The output end of the fire detector (202) is electrically connected to an external alarm.

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