Alarm and fire extinguishing system based on charging shed fire automatic monitoring

Abstract

The invention discloses an alarm and fire extinguishing system based on automatic fire monitoring of a charging shed, and particularly relates to the technical field of fire alarm, the alarm and fire extinguishing system comprises an alarm controller arranged in the charging shed, a plurality of smoke sensing detectors are arranged on the inner top wall of the charging shed, and a plurality of light sensing detectors are arranged on the alarm controller; the motor, the smoke detector and the light detector are all connected with the alarm controller through electric signals; compressed gas extrudes a pressing plate, so that the pressing plate slides downwards to extrude a fire extinguishing agent in a cavity at the lower end of a fire extinguisher bottle body, the effective fire extinguishing range of the fire extinguishing agent is expanded through reciprocating rotation of a spray head, and the situation that later injection pressure is insufficient along with consumption of the fire extinguishing agent is prevented; and when a fire source is not below the fire extinguisher, the effective range of the fire extinguishing agent cannot cover the fire source, so that the fire extinguishing effect is poor and even fire extinguishing cannot be performed.

Description

Technical Field

[0001] The present invention relates to the technical field of fire alarms, and more particularly to an alarm and fire extinguishing system based on automatic fire monitoring in a charging shed. Background Art

[0002] With the rapid increase in electric vehicle ownership, parking and charging safety issues are becoming increasingly prominent. Charging sheds are now available in numerous locations, including residential communities, shopping malls, and factories. However, electric vehicles are prone to fires due to electrical failures and battery aging. They also burn quickly and produce large amounts of toxic smoke. Therefore, many charging sheds are equipped with fire extinguishers.

[0003] However, electric vehicles are typically placed in rows within charging sheds. Since fire extinguishers can only spray vertically downward, their operating range is limited. When the fire source is not directly below the fire extinguisher, it cannot effectively cover the fire source, resulting in poor fire extinguishing results or even no fire extinguishing at all. Furthermore, as the extinguishing agent is consumed during use, the internal pressure of the fire extinguisher gradually decreases, resulting in insufficient pressure during the later stages of the spray. The extinguishing agent is easily blocked by the external flame, making it ineffective in extinguishing the fire. Furthermore, if there are no appropriate detection measures after the extinguishing agent in a fire extinguisher has been sprayed, and if remedial measures are not taken in a timely manner before the fire source is completely extinguished, the fire will spread again.

[0004] For example, Chinese patent publication number CN119028074A discloses an electric bicycle shed fire extinguishing system and method based on automatic monitoring, alarming, and fire extinguishing. The system includes a data acquisition module, a fire monitoring module, a fire prediction module, a fire analysis module, and an alarm and fire extinguishing module. This system performs fire monitoring by comprehensively analyzing multidimensional data and combining fire image recognition results, smoke information, and temperature information. This avoids misjudgments caused by errors in individual data items and improves the accuracy of fire monitoring. Fire prediction is performed by combining time-series data of smoke and temperature information, weather information, and seasonal information. Pre-fire data is analyzed and predicted, improving the timeliness of fire monitoring. The combined analysis of fire monitoring and fire prediction improves the accuracy of fire judgment, thus achieving automatic monitoring, alarming, and fire extinguishing of electric bicycle shed fires.

[0005] Although the fire monitoring accuracy of this invention is high, human control and fire extinguishing are still required after the fire alarm, which makes the fire uncontrollable.

[0006] To this end, the present invention proposes an alarm and fire extinguishing system based on automatic monitoring of charging shed fires to solve the above problems. Summary of the Invention

[0007] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides an alarm and fire extinguishing system based on automatic monitoring of charging shed fires to solve the problems raised in the above-mentioned background technology.

[0008] To achieve the above-mentioned object, the present invention provides the following technical solution: an alarm system based on automatic monitoring of fire in a charging shed, comprising an alarm controller arranged in the charging shed, a plurality of smoke detectors arranged on the inner top wall of the charging shed, and a plurality of light detectors arranged on the alarm controller; The smoke detector and the light detector are both connected to the alarm controller via electrical signals; When any one or more of the smoke detectors sends a signal to the alarm controller, the alarm controller remotely sends a fire alarm.

[0009] A fire extinguishing system based on automatic monitoring of fires in a charging shed adopts the above-mentioned alarm system. A third rotating shaft is rotatably connected to the top of the charging shed and adjacent to each smoke detector. The side wall of the third rotating shaft is rotatably connected to a fixed column. Each of the fixed columns is fixedly connected to a fire extinguisher bottle body. A motor is fixedly connected to the top of the charging shed, and the output shaft of the motor is communicated with the third rotating shaft. The fire extinguisher bottle body is arranged in the inner top of the charging shed. A pressure plate is provided in the fire extinguisher bottle body, and the pressure plate can slide inside the fire extinguisher bottle body to squeeze the fire extinguishing agent. A nozzle is provided at the outlet of the fire extinguisher bottle body.

[0010] Furthermore, it also includes a fixing part, which includes a fixing part arranged at the end of the fire extinguisher bottle body away from the charging shed, and a rotating part is arranged inside the fixing part, and the rotating part can rotate inside the fixing part when the fire extinguishing agent is sprayed. A second rotating shaft is provided at the end of the fixing part away from the fire extinguisher bottle body, and the second rotating shaft can rotate back and forth inside the fixing part when the fire extinguishing agent is sprayed.

[0011] Furthermore, the rotating member includes a first rotating shaft rotatably connected to the fixed member, and a plurality of baffles are distributed in a circumferential array at both ends of the first rotating shaft. A feed hole is eccentrically opened at the top of the fixed member, and the feed hole corresponds to the end of the baffle away from the first rotating shaft.

[0012] Furthermore, a first air cylinder is fixedly connected in the fixing member, and a first piston plate is slidably connected to the inside of the first air cylinder, one end of the first piston plate is fixedly connected to the first piston rod, the first rotating shaft is coaxially fixedly connected to the cam, the first piston rod extends away from one end of the first piston plate and contacts the cam, the outer wall of the first piston rod is sleeved with a first elastic member, one end of the first elastic member is fixedly connected to the first piston plate, the other end of the first elastic member is fixedly connected to the inner bottom wall of the first air cylinder, the end of the first air cylinder away from the cam is fixedly connected to the air supply cylinder, the end of the air supply cylinder away from the first air cylinder passes through the pressure plate, the air supply cylinder is connected to the chamber at the top of the fire extinguisher bottle body, the top of the first air cylinder is provided with a first exhaust hole connected to the air supply cylinder, the first exhaust hole is provided with a one-way valve, the first air cylinder is provided with a first air inlet hole, and the first air inlet hole of the first air cylinder is provided with a one-way valve.

[0013] Furthermore, a second air cylinder is fixedly connected to the fixing member, a second piston plate is slidably connected to the interior of the second air cylinder, one end of the second piston plate is fixedly connected to a second piston rod, the second piston rod extends out of the second air cylinder at one end away from the second piston plate and contacts the cam, the outer wall of the second piston rod is sleeved with a second elastic member, one end of the second elastic member is fixedly connected to the second piston plate, the other end of the second elastic member is fixedly connected to the inner top wall of the second air cylinder, a second air inlet hole is provided on the side wall of the second air cylinder, a one-way valve is provided on the second air inlet hole, a second exhaust hole is provided at the bottom of the second air cylinder, and a one-way valve is provided at the second exhaust hole.

[0014] Furthermore, the bottom end of the second air cylinder is fixedly connected to the ventilation cylinder, the interior of the ventilation cylinder is slidably connected to a slider, one end of the ventilation cylinder is fixedly connected to the third air cylinder, a third piston plate is provided inside the third air cylinder, one end of the third piston plate is fixedly connected to a third piston rod, an outer wall of the third piston rod is sleeved with a third elastic member, one end of the third elastic member is fixedly connected to the third piston plate, the third elastic member is fixedly connected to an end of the third air cylinder close to the ventilation cylinder, a through hole connected to the second exhaust hole is provided on the top of the ventilation cylinder, a third exhaust hole is provided at the bottom of the ventilation cylinder, an overflow valve is provided at the third exhaust hole, an air inlet is provided at the end of the third air cylinder away from the ventilation cylinder, and the air inlet hole on the third air cylinder is connected to the third The overflow port of the overflow valve at the exhaust hole is connected, the third piston rod extends into the interior of the ventilation cylinder, one end of the ventilation cylinder is fixedly connected to the fourth air cylinder, a fourth piston plate is provided inside the fourth air cylinder, one end of the fourth piston plate is fixedly connected to the fourth piston rod, the outer wall of the fourth piston rod is sleeved with a fourth elastic member, one end of the fourth elastic member is fixedly connected to the fourth piston plate, the fourth elastic member is fixedly connected to an end of the fourth air cylinder close to the ventilation cylinder, fourth exhaust holes are respectively provided at the bottom of the ventilation cylinder, an overflow valve is provided at the fourth exhaust hole, an air inlet hole is provided at the end of the fourth air cylinder away from the ventilation cylinder, the air inlet hole on the fourth air cylinder is connected to the overflow port of the overflow valve at the fourth exhaust hole, and the fourth piston rod extends into the interior of the ventilation cylinder.

[0015] Furthermore, an arc-shaped groove is provided at one end of the fixing part away from the fire extinguisher bottle body, the second rotating shaft passes through the arc-shaped groove, and push plates are fixedly connected to both ends of the second rotating shaft, the push plates are rotatably connected to the arc-shaped groove, and the push plates divide the arc-shaped groove into two chambers, and the side walls of one chamber of the two arc-shaped grooves are respectively provided with through holes connected to the third exhaust hole, and the side walls of the other chamber of the two arc-shaped grooves are respectively provided with through holes connected to the fourth exhaust hole, and the outer wall of the second rotating shaft is fixedly connected to a turntable, and one end of the turntable is fixedly connected to the nozzle.

[0016] Furthermore, a discharge hole connected to the nozzle of the nozzle is provided at the bottom of the fixing part, and an avoidance hole corresponding to the discharge hole is provided on the turntable. A mounting cylinder is fixedly connected to the inside of the fixing part, and a third air inlet hole and a fourth air inlet hole are provided on the side wall of the mounting cylinder. The third air inlet hole is connected to the first air inlet hole through a hose, and the fourth air inlet hole is connected to the second air inlet hole through a hose, and the mounting cylinder is connected to the outside world.

[0017] Furthermore, the fire extinguisher bottles are multiple and arranged in a linear array, a temperature-sensitive glass ball is provided at the nozzle hole of the nozzle, an electric push rod is fixedly connected to the nozzle of the nozzle, and a pressure sensor is provided at the nozzle of the nozzle.

[0018] Technical effects and advantages of the present invention: 1. When the present invention sends a signal to the alarm controller through multiple smoke detectors, the location of the fire source is detected according to the signals of the multiple smoke detectors and the motor is started to rotate the fire extinguisher bottle toward the fire source. When the pressure detector detects that the pressure inside the fire extinguisher bottle is lower than the threshold, the photosensitive detector is started to detect whether the fire source is extinguished. If the fire source is not extinguished, according to the signal sent by the smoke detector, the alarm controller starts the electric push rod of the nozzle of the nearest fire extinguisher bottle to shatter the temperature-sensitive glass ball to continue extinguishing the fire, thereby being able to quickly extinguish the fire at the first time of the alarm.

[0019] 2. The present invention uses compressed gas to squeeze the pressure plate, causing it to slide downward to squeeze the fire extinguishing agent in the lower end chamber of the fire extinguisher bottle, thereby compensating the injection pressure during the injection of the fire extinguishing agent, preventing the fire extinguishing agent from being blocked by the outer flame of the fire source due to insufficient pressure in the later stage of injection, and being unable to effectively extinguish the fire source.

[0020] 3. The present invention expands the coverage of the fire extinguishing agent through the reciprocating rotation of the nozzle, preventing the problem that when the fire source is not directly below the fire extinguisher, the fire source cannot be effectively covered, resulting in poor fire extinguishing effect or even failure to extinguish the fire.

[0021] 4. The present invention activates a photosensitive sensor to detect whether the fire source has been completely extinguished after any fire extinguisher shell has completed fire extinguishing, and continues to extinguish the unextinguished fire source through other fire extinguisher shells, thereby preventing the problem of the fire source not being completely extinguished after the fire extinguishing agent in one fire extinguisher has been sprayed and the fire spreading again. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a system flow chart of the present invention.

[0023] Figure 2 It is a schematic diagram of the overall structure of the present invention.

[0024] Figure 3 It is a schematic diagram of the overall structure of the fire extinguisher bottle of the present invention.

[0025] Figure 4 It is a cross-sectional view of the overall structure of the fire extinguisher bottle of the present invention.

[0026] Figure 5 For the present invention Figure 4 A-direction structure enlarged schematic diagram.

[0027] Figure 6 It is an exploded schematic diagram of the fixing part and the nozzle structure of the present invention.

[0028] Figure 7 This is a cross-sectional view of the fixing portion structure of the present invention.

[0029] Figure 8It is a cross-sectional view of the reversing cylinder structure of the present invention.

[0030] Figure 9 This is a structural diagram of the arc groove of the present invention.

[0031] Figure 10 It is a structural cross-sectional view of the fixing member of the present invention.

[0032] Figure 11 It is a partial cutaway schematic diagram of the overall structure of the present invention.

[0033] The accompanying drawings are marked as follows: 1. Charging shed; 11. Motor; 12. Third rotating shaft; 13. Fixed column; 2. Alarm controller; 21. Smoke detector; 22. Photosensitive detector; 3. Fire extinguisher bottle; 31. Pressing plate; 4. Fixing part; 41. Fixing member; 411. Feed hole; 412. Arc groove; 413. Mounting cylinder; 414. Third air inlet hole; 415. Fourth air inlet hole; 42. Rotating member; 421. First rotating shaft; 422. Cam; 423. Baffle; 43. Second rotating shaft; 431. Push plate; 44. First air cylinder; 441. First piston plate; 442. First piston rod; 443. First elastic member ;444, first air inlet; 445, first exhaust hole; 45, air supply cylinder; 46, second air cylinder; 461, second piston plate; 462, second piston rod; 463, second elastic member; 464, second air inlet; 465, second exhaust hole; 47, turntable; 5, nozzle; 51, electric push rod; 6, air exchange cylinder; 61, slider; 611, third exhaust hole; 612, fourth exhaust hole; 62, third air cylinder; 621, third piston plate; 622, third piston rod; 623, third elastic member; 63, fourth air cylinder; 631, fourth piston plate; 632, fourth piston rod; 633, fourth elastic member. DETAILED DESCRIPTION

[0034] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0035] Example 1 See also Figure 1 As shown, the alarm system based on automatic monitoring of charging shed fire provided in this embodiment includes a smoke detector 21 arranged in the charging shed 1, and the smoke detector 21 is electrically connected to the alarm controller 2. A photosensitive detector 22 is provided on the alarm controller 2, and the photosensitive detector 22 is electrically connected to the alarm controller 2.

[0036] In this embodiment, when any one or more of the smoke detectors 21 send a signal to the alarm controller 2, the alarm controller 2 remotely sends a fire alarm.

[0037] Example 2 In actual use, when a fire extinguisher is used to extinguish a fire, as the extinguishing agent is consumed, its internal pressure will gradually decrease, resulting in a weak spray in the later stage. The extinguishing agent is easily blocked by the outer flame and cannot effectively extinguish the fire source. This embodiment is specially invented to solve the above problem.

[0038] See also Figures 2 to 11 As shown, a charging shed fire alarm automatic fire extinguishing system according to an embodiment of the present invention includes a charging shed 1, a fire extinguisher bottle 3, a fixing part 4 and a nozzle 5. An alarm controller 2 is provided on the inner wall of the charging shed 1, and the fire extinguisher bottle 3 is provided on the inner top of the charging shed 1.

[0039] See also Figure 4 As shown, a pressure plate 31 is provided in the fire extinguisher bottle 3, and the pressure plate 31 can slide inside the fire extinguisher bottle 3 to squeeze the fire extinguishing agent. Figure 5 and Figure 6 As shown, the fixing part 4 includes a fixing part 41 arranged at the end of the fire extinguisher bottle body 3 away from the charging shed 1, and a rotating part 42 is arranged in the fixing part 41. The rotating part 42 can rotate inside the fixing part 41 when the fire extinguishing agent is sprayed. A second rotating shaft 43 is provided at the end of the fixing part 41 away from the fire extinguisher bottle body 3, and the second rotating shaft 43 can rotate back and forth inside the fixing part 41 when the fire extinguishing agent is sprayed.

[0040] Please refer to FIG7 , the rotating member 42 includes a first rotating shaft 421 rotatably connected to the fixed member 41, and a plurality of baffles 423 are arranged in a circumferential array at both ends of the first rotating shaft 421. Figure 6 A feeding hole 411 is eccentrically formed at the top of the fixing member 41 , and the feeding hole 411 corresponds to an end of the baffle 423 away from the first rotating shaft 421 .

[0041] See also Figure 7 As shown, the fixing member 41 is fixedly connected to the first gas cylinder 44, the first gas cylinder 44 is slidably connected to the first piston plate 441, one end of the first piston plate 441 is fixedly connected to the first piston rod 442, the first rotating shaft 421 is coaxially fixedly connected to the cam 422, the first piston rod 442 extends out of the first gas cylinder 44 away from one end of the first piston plate 441 and contacts the cam 422, the outer wall of the first piston rod 442 is sleeved with a first elastic member 443, one end of the first elastic member 443 is fixedly connected to the first piston plate 441, and the other end of the first elastic member 443 is fixedly connected to the inner bottom wall of the first gas cylinder 44, combined with Figure 4 and Figure 5As shown, the end of the first air cylinder 44 away from the cam 422 is fixedly connected to the air supply cylinder 45, and the end of the air supply cylinder 45 away from the first air cylinder 44 passes through the pressure plate 31, and the air supply cylinder 45 is connected to the chamber at the top of the fire extinguisher bottle body 3. Figure 10 As shown, the top of the first air cylinder 44 is provided with a first exhaust hole 445 connected to the air supply cylinder 45, a one-way valve is provided at the first exhaust hole 445, the first air cylinder 44 is provided with a first air inlet hole 444, and a one-way valve is provided at the first air inlet hole 444 of the first air cylinder 44.

[0042] See also Figure 7 As shown, the fixing member 41 is fixedly connected to the second gas cylinder 46, and the second gas cylinder 46 is slidably connected to the second piston plate 461. One end of the second piston plate 461 is fixedly connected to the second piston rod 462. The second piston rod 462 extends out of the second gas cylinder 46 away from one end of the second piston plate 461 and contacts the cam 422. The outer wall of the second piston rod 462 is sleeved with a second elastic member 463. One end of the second elastic member 463 is fixedly connected to the second piston plate 461, and the other end of the second elastic member 463 is fixedly connected to the inner top wall of the second gas cylinder 46. Figure 10 As shown, a second air inlet 464 is provided on the side wall of the second air cylinder 46 , and a one-way valve is provided on the second air inlet 464 . A second air exhaust 465 is provided on the bottom of the second air cylinder 46 , and a one-way valve is provided at the second air exhaust 465 .

[0043] See also Figure 5 As shown, the bottom end of the second air cylinder 46 is fixedly connected to the air cylinder 6, combined with Figure 8As shown, the interior of the ventilation cylinder 6 is slidably connected with a slider 61, one end of the ventilation cylinder 6 is fixedly connected to the third air cylinder 62, a third piston plate 621 is provided inside the third air cylinder 62, one end of the third piston plate 621 is fixedly connected to the third piston rod 622, the outer wall of the third piston rod 622 is sleeved with a third elastic member 623, one end of the third elastic member 623 is fixedly connected to the third piston plate 621, the third elastic member 623 is fixedly connected to the end of the third air cylinder 6 close to the ventilation cylinder 6, a through hole connected to the second exhaust hole 465 is provided at the top of the ventilation cylinder 6, a third exhaust hole 611 is provided at the bottom of the ventilation cylinder 6, an overflow valve is provided at the third exhaust hole 611, an air inlet is provided at the end of the third air cylinder 62 away from the ventilation cylinder 6, the air inlet hole on the third air cylinder 62 and the overflow of the overflow valve at the third exhaust hole 611 The fourth air cylinder 63 is connected to the third air cylinder 62, and the third piston rod 622 extends into the interior of the ventilation cylinder 6. One end of the ventilation cylinder 6 is fixedly connected to the fourth air cylinder 63. A fourth piston plate 631 is provided inside the fourth air cylinder 63. One end of the fourth piston plate 631 is fixedly connected to the fourth piston rod 632. The outer wall of the fourth piston rod 632 is sleeved with a fourth elastic member 633. One end of the fourth elastic member 633 is fixedly connected to the fourth piston plate 631. The fourth elastic member 633 is fixedly connected to an end of the fourth air cylinder 63 close to the ventilation cylinder 6. A fourth exhaust hole 612 is provided at the bottom of the ventilation cylinder 6. An overflow valve is provided at the fourth exhaust hole 612. An air inlet is provided at the end of the fourth air cylinder 63 away from the ventilation cylinder 6. The air inlet hole on the fourth air cylinder 63 is connected to the overflow port of the overflow valve at the fourth exhaust hole 612, and the fourth piston rod 632 extends into the interior of the ventilation cylinder 6.

[0044] See also Figure 9 As shown, the end of the fixing member 41 away from the fire extinguisher bottle 3 is provided with an arc groove 412. Figure 6 As shown, the second rotating shaft 43 passes through the arc groove 412, and the two ends of the second rotating shaft 43 are fixedly connected with push plates 431, which are rotatably connected to the arc groove 412. The push plate 431 divides the arc groove 412 into two chambers, and the side walls of one of the chambers of the two arc grooves 412 are respectively provided with through holes connected to the third exhaust hole 611, and the two through holes are connected to the third exhaust hole 611 through hoses, and the side walls of the other chambers of the two arc grooves 412 are respectively provided with through holes connected to the fourth exhaust hole 612, and the two through holes are connected to the fourth exhaust hole 612 through hoses. The outer wall of the second rotating shaft 43 is fixedly connected with a turntable 47, and one end of the turntable 47 is fixedly connected to the nozzle 5.

[0045] See also Figure 6 and Figure 10As shown, a discharge hole connected to the nozzle of the nozzle 5 is provided at the bottom of the fixing part 41, and the discharge hole is connected to the nozzle 5 through a hose. A avoidance hole corresponding to the discharge hole is provided on the turntable 47. A mounting cylinder 413 is fixedly connected to the inside of the fixing part 41, and a third air inlet hole 414 and a fourth air inlet hole 415 are provided on the side wall of the mounting cylinder 413. The third air inlet hole 414 is connected to the first air inlet hole 444 through a hose, and the fourth air inlet hole 415 is connected to the second air inlet hole 464 through a hose. The mounting cylinder 413 is connected to the outside world, and the hose interface is sealed.

[0046] Combine Figure 3 As shown, a temperature-sensitive glass ball is provided at the nozzle hole of the nozzle head 5 , an electric push rod 51 is fixedly connected to the nozzle opening of the nozzle head 5 , and a pressure sensor is provided at the nozzle opening of the nozzle head 5 .

[0047] See also Figure 11 As shown, the top of the charging shed 1 is rotatably connected to the third rotating shaft 12, the side wall of the third rotating shaft 12 is rotatably connected to the fixed column 13, the fixed column 13 is fixedly connected to the fire extinguisher bottle 3, the top of the charging shed 1 is fixedly connected to the motor 11, the output shaft of the motor 11 is connected to the third rotating shaft 12, the motor 11 is connected to the alarm controller 2 through an electrical signal, and the alarm controller 2 is connected to the alarm controller 2 through an electrical signal. Figure 2 As shown, there are multiple fire extinguisher bottles 3 in a linear array.

[0048] During use, when the temperature of the temperature-sensitive glass ball on any fire extinguisher bottle 3 is higher than 68°C, the temperature-sensitive glass ball on the fire extinguisher bottle 3 is broken, or when the smoke detector 21 corresponding to any fire extinguisher bottle 3 reaches the threshold, the alarm controller 2 controls the electric push rod 51 to break the temperature-sensitive glass ball so that the fire extinguishing agent is sprayed out from the fire extinguisher bottle 3. When the fire extinguishing agent starts to spray, the fire extinguishing agent enters the interior of the fixing member 41 through the feed hole 411 and impacts the baffle 423 on the first rotating shaft 421, so that the baffle 423 drives the first rotating shaft 421 to rotate, and the rotation of the first rotating shaft 421 drives the cam 422 to rotate, so that the first piston rod 442 drives the first rotating shaft 421 to rotate. A piston plate 441 slides back and forth inside the first air cylinder 44, so that external gas enters the first air cylinder 44 through the third air inlet hole 414, the hose and the first air inlet hole 444. After being compressed, the gas enters the air delivery cylinder 45 through the first exhaust hole 445, so that compressed gas continuously enters the upper end chamber of the fire extinguisher bottle 3 to squeeze the pressure plate 31. The compressed gas squeezes the pressure plate 31, causing the pressure plate 31 to slide downward to squeeze the fire extinguishing agent in the lower end chamber of the fire extinguisher bottle 3, thereby compensating the injection pressure during the injection of the fire extinguishing agent, preventing the problem of insufficient pressure in the later stage of the fire extinguishing agent injection, being blocked by the external flame of the fire source, and being unable to effectively extinguish the fire source.

[0049] Example 3 During actual use, it was found that since the fire extinguisher can only spray vertically downward and has a small operating range, when the fire source is not directly below the fire extinguisher, it cannot effectively cover the fire source, resulting in poor fire extinguishing effect or even failure to extinguish the fire. Further improvements were made based on the above embodiments.

[0050] On the basis of the above embodiment, when the cam 422 rotates, it drives the second piston rod 462 to reciprocate, so that the second piston plate 461 moves back and forth inside the second air cylinder 46, so that the external air continuously enters the second air cylinder 46 through the fourth air inlet hole 415, the hose and the second air inlet hole 464, and enters the interior of the ventilation cylinder 6 through the second exhaust hole 465. Due to the obstruction of the slider 61, after the gas enters the interior of the ventilation cylinder 6, it can only enter one of the chambers of the arc groove 412 through the fourth exhaust hole 612. As the pressure inside one of the chambers of the arc groove 412 continues to increase, the push plate 431 drives the second rotating shaft 43 to rotate. When the push plate 431 rotates to the extreme position, the pressure inside one of the chambers of the arc groove 412 increases to the threshold value of the relief valve, and the excess gas enters the fourth air cylinder 63 through the overflow port of the relief valve, thereby making The fourth piston plate 631 drives the fourth piston rod 632 to push the slider 61 to slide inside the ventilation cylinder 6, so that the gas enters the other chamber of the arc groove 412 through the third exhaust hole 611, so that the push plate 431 drives the second rotating shaft 43 to rotate in the opposite direction. When the pressure of the other chamber of the arc groove 412 reaches the threshold of the overflow valve, the excess gas enters the interior of the third gas cylinder 62 through the overflow port, so that the third piston plate 621 drives the third piston rod 622 to push the slider 61, so that the gas passes through the fourth exhaust hole 612 again, so that the push plate 431 drives the second rotating shaft 43 to rotate reciprocatingly, so that the second rotating shaft 43 drives the nozzle 5 to rotate reciprocatingly through the turntable 47. The reciprocating rotation of the nozzle 5 expands the coverage range of the fire extinguishing agent to prevent the fire source from being unable to be effectively covered when the fire source is not directly below the fire extinguisher, resulting in poor fire extinguishing effect or even failure to extinguish the fire.

[0051] Example 4 During use, when the extinguishing agent in a fire extinguisher is completely sprayed, if there is no corresponding detection measure, and the fire source is not completely extinguished, if remedial measures are not taken in time, the fire will spread again. Further improvements are made on the basis of the above embodiment.

[0052] Based on the above embodiments, Figure 1As shown, multiple smoke detectors 21 transmit the detected smoke concentration signal to the alarm controller 2, and the alarm controller 2 analyzes the data detected by the multiple smoke detectors 21. When the smoke concentration detected by any smoke detector 21 reaches the threshold, the alarm controller 2 starts the electric push rod 51 to shatter the temperature-sensitive glass ball. At the same time, the alarm controller 2 analyzes the data detected by the smoke detectors 21 on both sides of the smoke detector 21 that has reached the threshold, and starts the motor 11 at the smoke detector 21 with a larger value, so that the motor 11 drives the fixed column 13 to rotate through the third rotating shaft 12, thereby causing the corresponding fire extinguisher bottle 3 to rotate in the direction of the already started fire extinguisher bottle 3. When the pressure sensor of the already started fire extinguisher bottle 3 is lower than the threshold, the alarm controller 2 starts the photosensitive detector 22 to detect whether the fire source is extinguished. When the photosensitive detector 22 detects that the fire source is not extinguished, the alarm controller 2 starts the fire extinguisher bottle 3 that has been aimed at the fire source to extinguish the fire, so as to prevent the fire from spreading again after the fire extinguishing agent in a fire extinguisher is sprayed.

[0053] The present invention is based on an alarm and fire extinguishing system for automatic monitoring of fires in a charging shed. When multiple smoke detectors 21 send signals to the alarm controller 2, the fire source location is detected according to the signals of the multiple smoke detectors 21 and the motor 11 is started to rotate the fire extinguisher bottle 3 toward the fire source. When the temperature-sensitive glass ball on any nozzle 5 detects a temperature higher than 68°C, the temperature-sensitive glass ball is broken, or when the smoke concentration detected by the smoke detector 21 reaches a threshold, the electric push rod 51 is energized to break the temperature-sensitive glass ball. During the spraying process, the first air cylinder 44 continuously supplies air. The cylinder 45 replenishes compressed gas to the chamber above the fire extinguisher bottle 3, causing the pressure plate 31 to squeeze the fire extinguishing agent, thereby ensuring the stability of the injection pressure; the second rotating shaft 43 reciprocates to cause the nozzle 5 to reciprocate to expand the effective fire extinguishing range; when the pressure detector detects that the pressure inside the fire extinguisher bottle 3 is lower than the threshold, the photosensitive detector 22 starts to detect whether the fire source is extinguished. When the fire source is not extinguished, according to the signal sent by the smoke detector 21, the alarm controller 2 starts the electric push rod 51 of the nozzle 5 of the nearest fire extinguisher bottle 3 to shatter the temperature-sensitive glass ball to continue extinguishing the fire.

[0054] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An alarm system based on automatic fire monitoring in a charging shed, comprising an alarm controller arranged in the charging shed, characterized in that: The inner top wall of the charging shed is provided with a plurality of smoke detectors, and the alarm controller is provided with a plurality of light detectors; The smoke detector and the light detector are both connected to the alarm controller via electrical signals; When any one or more of the smoke detectors sends a signal to the alarm controller, the alarm controller remotely sends a fire alarm.

2. A fire extinguishing system based on automatic monitoring of charging shed fires, using the alarm system of claim 1, characterized in that: A third rotating shaft is rotatably connected to the top of the charging shed and adjacent to each smoke detector. A fixed column is rotatably connected to the side wall of the third rotating shaft. Each of the fixed columns is fixedly connected to a fire extinguisher bottle body. A motor is fixedly connected to the top of the charging shed. The output shaft of the motor is communicated with the third rotating shaft. The fire extinguisher bottle body is arranged on the inner top of the charging shed. A pressure plate is arranged in the fire extinguisher bottle body. The pressure plate can slide inside the fire extinguisher bottle body to squeeze the fire extinguishing agent. A nozzle is arranged at the outlet of the fire extinguisher bottle body.

3. The fire extinguishing system based on automatic monitoring of charging shed fires according to claim 2 is characterized by: It also includes a fixing part, which includes a fixing piece arranged at the end of the fire extinguisher bottle away from the charging shed, a rotating piece is arranged inside the fixing piece, and the rotating piece can rotate inside the fixing piece when the fire extinguishing agent is sprayed, and a second rotating shaft is arranged at the end of the fixing piece away from the fire extinguisher bottle, and the second rotating shaft can rotate back and forth inside the fixing piece when the fire extinguishing agent is sprayed.

4. The fire extinguishing system based on automatic monitoring of charging shed fires according to claim 3 is characterized by: The rotating member includes a first rotating shaft rotatably connected to the fixed member, and a plurality of baffles are distributed in a circumferential array at both ends of the first rotating shaft. A feed hole is eccentrically opened at the top of the fixed member, and the feed hole corresponds to the end of the baffle away from the first rotating shaft.

5. The fire extinguishing system based on automatic monitoring of charging shed fires according to claim 4 is characterized in that: The cam is fixedly connected to the fixing member, and the first air cylinder is slidably connected to the inside of the first air cylinder, and one end of the first piston plate is fixedly connected to the first piston rod, and the first rotating shaft is coaxially fixedly connected to the cam, and the first piston rod extends away from one end of the first piston plate and contacts the cam, and the outer wall of the first piston rod is sleeved with a first elastic member, one end of the first elastic member is fixedly connected to the first piston plate, and the other end of the first elastic member is fixedly connected to the inner bottom wall of the first air cylinder, and the end of the first air cylinder away from the cam is fixedly connected to the air supply cylinder, and the end of the air supply cylinder away from the first air cylinder passes through the pressure plate, and the air supply cylinder is connected to the chamber at the top of the fire extinguisher bottle body, and the top of the first air cylinder is provided with a first exhaust hole connected to the air supply cylinder, and a one-way valve is provided at the first exhaust hole, and the first air cylinder is provided with a first air inlet hole, and the first air inlet hole of the first air cylinder is provided with a one-way valve.

6. The fire extinguishing system based on automatic monitoring of charging shed fires according to claim 5 is characterized by: A second air cylinder is fixedly connected to the fixing member, and a second piston plate is slidably connected to the interior of the second air cylinder. One end of the second piston plate is fixedly connected to a second piston rod, and the second piston rod extends out of the second air cylinder at one end away from the second piston plate and contacts the cam. A second elastic member is sleeved on the outer wall of the second piston rod, one end of the second elastic member is fixedly connected to the second piston plate, and the other end of the second elastic member is fixedly connected to the inner top wall of the second air cylinder. A second air inlet hole is provided on the side wall of the second air cylinder, and a one-way valve is provided on the second air inlet hole. A second exhaust hole is provided at the bottom of the second air cylinder, and a one-way valve is provided at the second exhaust hole.

7. The fire extinguishing system based on automatic monitoring of charging shed fires according to claim 6 is characterized in that: The bottom end of the second air cylinder is fixedly connected to the ventilation cylinder, and the interior of the ventilation cylinder is slidably connected to a slider, one end of the ventilation cylinder is fixedly connected to the third air cylinder, a third piston plate is provided inside the third air cylinder, one end of the third piston plate is fixedly connected to the third piston rod, the outer wall of the third piston rod is sleeved with a third elastic member, one end of the third elastic member is fixedly connected to the third piston plate, the third elastic member is fixedly connected to an end of the third air cylinder close to the ventilation cylinder, a through hole connected to the second exhaust hole is provided on the top of the ventilation cylinder, a third exhaust hole is provided at the bottom of the ventilation cylinder, an overflow valve is provided at the third exhaust hole, an air inlet is provided at the end of the third air cylinder away from the ventilation cylinder, and the inlet hole on the third air cylinder is connected to the third exhaust hole The cam is connected to the overflow port of the overflow valve at the hole, the third piston rod extends into the interior of the ventilation cylinder, one end of the ventilation cylinder is fixedly connected to the fourth air cylinder, a fourth piston plate is provided inside the fourth air cylinder, one end of the fourth piston plate is fixedly connected to the fourth piston rod, the outer wall of the fourth piston rod is sleeved with a fourth elastic member, one end of the fourth elastic member is fixedly connected to the fourth piston plate, the fourth elastic member is fixedly connected to an end of the fourth air cylinder close to the ventilation cylinder, a fourth exhaust hole is respectively provided at the bottom of the ventilation cylinder, an overflow valve is provided at the fourth exhaust hole, an air inlet hole is provided at the end of the fourth air cylinder away from the ventilation cylinder, the air inlet hole on the fourth air cylinder is connected to the overflow port of the overflow valve at the fourth exhaust hole, and the fourth piston rod extends into the interior of the ventilation cylinder.

8. The fire extinguishing system based on automatic monitoring of charging shed fires according to claim 7 is characterized by: An arc-shaped groove is provided at one end of the fixing part away from the fire extinguisher bottle body, the second rotating shaft passes through the arc-shaped groove, and push plates are fixedly connected to both ends of the second rotating shaft, the push plates are rotatably connected to the arc-shaped groove, and the push plates divide the arc-shaped groove into two chambers, and the side walls of one chamber of the two arc-shaped grooves are respectively provided with through holes connected to the third exhaust hole, and the side walls of the other chamber of the two arc-shaped grooves are respectively provided with through holes connected to the fourth exhaust hole, and the outer wall of the second rotating shaft is fixedly connected to a turntable, and one end of the turntable is fixedly connected to the nozzle.

9. The fire extinguishing system based on automatic monitoring of charging shed fires according to claim 8 is characterized by: A discharge hole connected to the nozzle of the nozzle is provided at the bottom of the fixing part, and an avoidance hole corresponding to the discharge hole is provided on the turntable. A mounting cylinder is fixedly connected to the inside of the fixing part, and a third air inlet hole and a fourth air inlet hole are provided on the side wall of the mounting cylinder. The third air inlet hole is connected to the first air inlet hole through a hose, and the fourth air inlet hole is connected to the second air inlet hole through a hose, and the mounting cylinder is connected to the outside world.

10. The fire extinguishing system based on automatic monitoring of charging shed fires according to claim 9 is characterized in that: The fire extinguisher bottles are multiple and arranged in a linear array. A temperature-sensitive glass ball is provided at the nozzle hole of the nozzle. An electric push rod is fixedly connected to the nozzle of the nozzle. A pressure sensor is provided at the nozzle of the nozzle.

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