Automatic fire extinguishing device for garage

Abstract

The invention discloses a garage automatic fire extinguishing device which comprises a garage ground, a parking space platform is arranged on the garage ground, a fire extinguishing device is arranged on the parking space platform, and the fire extinguishing device comprises a lifting assembly, a liquid outlet assembly, a detection assembly and high-temperature-resistant waterproof cloth. According to the automatic fire extinguishing device for the garage, the vehicle state is monitored in real time through the gas sensor and the temperature sensor and uploaded to the intelligent control system, liquid nitrogen or perfluorohexanone is rapidly utilized for cooling once abnormity is detected, water is injected to submerge a battery if the temperature is still out of control, efficient fire extinguishing is achieved, and reburning is prevented; when a fire occurs, the high-temperature-resistant waterproof cloth is rapidly unfolded to isolate a fire source, and the fire diffusion risk is reduced; the device structure and the drainage system are reasonably designed to prevent sewage from flowing out and protect the ecological environment; fire is extinguished in time to avoid combustion of a large number of vehicles and guarantee safety of high-rise buildings.

Description

Technical Field

[0001] The present invention belongs to the technical field of fire safety, and particularly relates to an automatic fire extinguishing device for a garage. Background Art

[0002] In modern urban construction, underground garages have become key areas for vehicle parking and charging. With the rapid growth of the ownership of new energy vehicles, the potential safety hazards of underground garage charging have become increasingly prominent. Once a thermal runaway occurs during the charging or operation of the battery of a new energy vehicle, the fire will spread rapidly in a short period of time. Due to the dense parking of vehicles in the garage, a fire is very likely to trigger a chain reaction, resulting in a large number of vehicles being burned and the facilities of the entire garage being severely damaged. Moreover, the high-concentration smoke and heavy metal radioactive toxic gases released during the combustion of new energy vehicles not only hinder fire-fighting operations but also pose a great threat to the lives of personnel. Fire trucks are often unable to enter the garage smoothly for rescue due to these obstacles.

[0003] Currently, there are many shortcomings in the existing garage fire-fighting technologies when dealing with new energy vehicle fires:

[0004] Water spray fire extinguishing system: This type of system relies on sprinklers on the garage ceiling to spray water for fire extinguishing. However, when the battery of a new energy vehicle comes into contact with water, it is extremely easy to cause a short circuit, resulting in the fire becoming more intense and unable to effectively extinguish the fire source caused by the battery. In addition, the water spray system has no ability to deal with the toxic gases generated by the fire, cannot create a safe environment for fire-fighting personnel and trapped personnel, and a large amount of water spraying may also cause water accumulation in the garage, damaging other vehicles and equipment.

[0005] Gas fire extinguishing system: Such as the carbon dioxide fire extinguishing system, although it can use carbon dioxide gas to reduce the oxygen concentration to suppress the fire, its inhibitory effect on the thermal runaway reaction of the battery in a new energy vehicle fire is poor and it is difficult to prevent the battery from reigniting. Moreover, using carbon dioxide for fire extinguishing in a relatively enclosed garage space will increase the risk of suffocation for personnel and pose a threat to the lives of trapped personnel.

[0006] Dry powder fire extinguishing system: The dry powder fire extinguishing system extinguishes the fire by spraying dry powder to cover the fire source. However, the dry powder fire extinguishing agent will pollute the equipment and the environment, is difficult to clean up after fire extinguishing, and its residual substances may also corrode vehicles and garage facilities. Moreover, the dry powder fire extinguishing system also cannot solve the problem of toxic gases generated by the fire and cannot protect personnel from toxic gases. Summary of the Invention

[0007] To solve the problems raised in the above-mentioned background technology, the present invention provides the following technical solutions: An automatic garage fire extinguishing device includes a garage floor, on which a parking space platform is provided, and on which a fire extinguishing device is provided. The fire extinguishing device includes a lifting component, a liquid discharging component, a detection component, and a high-temperature resistant waterproof cloth. The lifting component, the liquid discharging component, and the detection component are all connected to the parking space platform. The liquid discharging component and the detection component are both located inside the lifting component. The high-temperature resistant waterproof cloth includes a fixed end and a movable end. The fixed end is connected to the base frame of the lifting component, and the movable end is connected to the lifting frame of the lifting component. The detection component is used to detect whether there are abnormal situations of the vehicle. A controller is provided near the parking space platform, and the controller is connected to the lifting component, the liquid discharging component, and the detection component through wires.

[0008] Further, a floating platform is provided on the parking space platform, and the liquid discharging component and the detection component are both installed on the floating platform.

[0009] Further, the detection component includes a gas-sensitive sensor, and the gas-sensitive sensor is connected to both the floating platform and the parking space platform. The gas-sensitive sensor is connected to the controller through a wire.

[0010] Further, the detection component includes a temperature sensor, and the temperature sensor is connected to the controller through a wire.

[0011] Further, a parking space sensor and a parking space indicator light are provided on the parking space platform, and both the parking space sensor and the parking space indicator light are connected to the controller through wires.

[0012] Further, the lifting component includes a base frame, a lifting frame, and a telescopic rod. The base frame is connected to the parking space platform. Both ends of the telescopic rod are hinged to the base frame and the lifting frame respectively. The telescopic rod is connected to the controller through a wire.

[0013] Further, an auxiliary movable bracket is provided between the base frame and the lifting frame.

[0014] Further, the base frame and the lifting frame fit each other.

[0015] Further, an anti-slip ramp is provided on the outer wall of the parking space platform.

[0016] Further, the liquid discharging component includes a nozzle, a water inlet pipe, and a medium storage device. The nozzle is connected to the water inlet pipe and the medium storage device respectively through a pipeline and a solenoid valve.

[0017] The beneficial effects of the present invention are as follows: The automatic garage fire extinguishing device monitors the vehicle status in real time through gas sensors and temperature sensors. Once an anomaly is detected, it quickly cools down using liquid nitrogen or perfluoroketone and water. If the temperature is still out of control or smoke is detected, water is injected to flood the battery. The smoke generated by combustion and the battery are both submerged in water and controlled, and there will be no smoke or toxic gases filling the entire garage. The flame and temperature of the battery combustion are also quickly controlled. It achieves efficient fire extinguishing and prevents reignition; the parking space sensor and parking space indicator cooperate to facilitate the owner to park the vehicle in a standardized manner, ensuring the accurate positioning and operation of the fire extinguishing device; the relevant structure of the lifting component makes the lifting process stable and reliable, enhancing the stability and durability of the device; when a fire occurs, the high-temperature resistant waterproof cloth quickly unfolds to isolate the fire source, reducing the risk of fire spread; the device structure and drainage system are reasonably designed to prevent sewage from flowing out, protecting the ecological environment; timely fire extinguishing avoids the combustion of a large number of vehicles, ensuring the safety of high-rise buildings; the rapid response mechanism and fire control protect the safety of personnel's lives, reducing the difficulty of fire fighting by firefighters and the safety risk of firefighters; the floating platform can be adaptively adjusted according to the vehicle weight and position, ensuring that the device can effectively play its role regardless of how the vehicle is parked. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional view of the present invention;

[0019] Figure 2 is a schematic structural view of the lifting component in the present invention;

[0020] Figure 3 is a schematic view of the positional relationship between the lifting component and the floating platform in the present invention;

[0021] Figure 4 is a first usage state diagram of the present invention;

[0022] Figure 5 is a second usage state diagram of the present invention.

[0023] The meanings of the reference numerals in the figures: 1 - parking space platform; 2 - lifting component; 3 - liquid outlet component; 4 - detection component; 5 - high-temperature resistant waterproof cloth; 6 - fixed end; 7 - movable end; 8 - floating platform; 9 - gas sensor; 10 - temperature sensor; 11 - parking space sensor; 12 - parking space indicator; 13 - base frame; 14 - lifting frame; 15 - telescopic rod; 16 - auxiliary movable bracket; 17 - anti-slip ramp. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] 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 of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0025] Embodiment 1

[0026] Please refer to Figures 1-5 , the present invention provides the following technical solutions: An automatic garage fire extinguishing device includes a garage floor, on which a parking space platform is provided, and a fire extinguishing device is provided on the parking space platform. The fire extinguishing device includes a lifting component, a liquid discharging component, a detection component, and a high-temperature resistant waterproof cloth. The lifting component, the liquid discharging component, and the detection component are all connected to the parking space platform. The liquid discharging component and the detection component are both located inside the lifting component. The high-temperature resistant waterproof cloth includes a fixed end and a movable end. The fixed end is connected to the base frame of the lifting component, and the movable end is connected to the lifting frame of the lifting component. The detection component is used to detect whether there is an abnormal situation of the vehicle. A controller is provided near the parking space platform, and the controller is connected to the lifting component, the liquid discharging component, and the detection component through wires.

[0027] In the above structure, the controller is provided with an Internet of Things module. The detection component monitors the vehicle condition in real time and uploads it to the intelligent control system. The property owner can access the intelligent control system through a mobile device to view the vehicle condition. Once an abnormality is detected, the controller automatically alarms and responds emergently, starts the lifting component to rise, drives the high-temperature resistant waterproof cloth to unfold, isolates the burning vehicle from the surrounding environment, and prevents the fire from spreading; at the same time, the liquid discharging component starts to work for fire extinguishing, greatly improving the timeliness and effectiveness of fire extinguishing and reducing fire losses; the liquid discharging component includes well-known products in the prior art, such as a nozzle, a water inlet pipe, and a medium storage device. The nozzle is connected to the water inlet pipe and the medium storage device through pipes and solenoid valves respectively.

[0028] In this embodiment, a floating platform is provided on the parking space platform, and the liquid discharging component and the detection component are both installed on the floating platform.

[0029] With the above structure, the floating platform can be adaptively adjusted according to the weight and position of the vehicle, ensuring that the liquid discharging component and the detection component are always in the best working positions, improving the accuracy of detection and the pertinence of fire extinguishing, and ensuring that the device can effectively play its role regardless of how the vehicle is parked.

[0030] In this embodiment, the detection component includes a gas sensor, and the gas sensor is connected to both the floating platform and the parking space platform. The gas sensor is connected to the controller through a wire.

[0031] In the above structure, the gas sensor can also be a smoke sensor, which can quickly detect changes in the gas components around the vehicle, such as the toxic and harmful gases generated when new energy vehicles catch fire, and transmit signals to the controller in a timely manner, enabling the device to give an early warning and start the fire extinguishing process, effectively coping with the dangerous situation in the initial stage of the fire and ensuring the safety of personnel.

[0032] In this embodiment, the detection component includes a temperature sensor, and the temperature sensor is connected to the controller through a wire.

[0033] With the above structure, the temperature sensor can monitor the temperature of the vehicle and its surrounding environment in real time. When the temperature rises abnormally and reaches the set threshold, it quickly sends a signal to the controller, triggering the activation of the fire extinguishing device, and can respond when there is just a sign of temperature rise in the fire, achieving early fire extinguishing and reducing the losses caused by the fire.

[0034] In this embodiment, a parking space sensor and a parking space indicator light are arranged on the parking space platform, and both the parking space sensor and the parking space indicator light are connected to the controller through wires.

[0035] With the above structure, the parking space sensor can accurately judge whether the vehicle is parked accurately on the parking space platform. When the vehicle is not parked accurately, the parking space sensor transmits the signal to the controller, and the controller immediately issues a prompt through the voice broadcast device beside the parking space, and at the same time lights up a specific indicator light to inform the vehicle owner that the parking position is inaccurate and needs to be readjusted; when the vehicle is parked correctly, the controller controls the corresponding correct parking indicator light to light up, providing a clear and intuitive feedback on the parking status for the vehicle owner, which not only facilitates the vehicle owner to park in a standardized manner but also ensures that the subsequent fire extinguishing device can be accurately positioned and operated.

[0036] In this embodiment, the lifting component includes a base frame, a lifting frame, and a telescopic rod. The base frame is connected to the parking space platform, and both ends of the telescopic rod are hinged to the base frame and the lifting frame respectively. The telescopic rod is connected to the controller through a wire.

[0037] With the above structure, the telescopic rod can quickly expand and contract under the control of the controller, thereby driving the lifting frame to rise and fall smoothly, realizing the rapid deployment and retraction of the high-temperature and waterproof cloth. The action is rapid and stable, and can enclose the burning vehicle in time when a fire occurs, effectively preventing the fire from spreading to surrounding vehicles and areas.

[0038] In this embodiment, an auxiliary movable bracket is arranged between the base frame and the lifting frame.

[0039] With the above structure, the auxiliary movable bracket can enhance the structural stability of the lifting component, play an auxiliary supporting role during the lifting process, ensure the smooth operation of the lifting frame, avoid affecting the deployment effect of the high-temperature resistant waterproof cloth and the normal operation of the fire extinguishing device due to shaking or deviation, and improve the reliability and durability of the device.

[0040] In this embodiment, the base frame and the lifting frame fit each other.

[0041] In this embodiment, an anti-slip ramp is provided on the outer wall of the parking space platform.

[0042] With the above structure, the mutually fitting base frame and lifting frame can ensure close cooperation during the lifting process, reduce gaps and shaking, make the device operate more smoothly and reliably, and at the same time prevent sundries from entering the inside of the lifting component, affecting the normal operation of the device and extending the service life of the device.

[0043] With the above structure, the design of the anti-slip ramp enables the vehicle to drive onto the parking space platform more easily and smoothly, effectively reducing the risk of wheel slippage when the vehicle climbs the slope. Especially when there are slippery factors such as dust and water stains on the garage floor, it can ensure the vehicle can safely and smoothly reach the designated parking position.

[0044] In this embodiment, the liquid outlet component includes a nozzle, a water inlet pipe, and a medium storage device. The nozzle is connected to the water inlet pipe and the medium storage device respectively through pipelines and the electromagnetic valve.

[0045] In this embodiment, the medium in the medium storage device includes liquid nitrogen.

[0046] Working principle:

[0047] Vehicle status monitoring

[0048] The gas sensor and temperature sensor in the detection component continuously monitor the vehicle status. The gas sensors are distributed on the floating platform and the parking space platform, and can quickly detect changes in the gas composition around the vehicle; the temperature sensor monitors the temperature of the vehicle chassis in real time, especially focusing on the temperature change of the vehicle chassis battery part.

[0049] Initial protection

[0050] When the temperature sensor detects that the temperature of the vehicle chassis rises abnormally and reaches the set warning threshold, the controller quickly responds and sends an instruction to the liquid outlet assembly. At this time, the liquid outlet assembly is simultaneously connected to the water inlet pipe and the medium storage device. After the liquid nitrogen is ejected from the nozzle, it quickly vaporizes, generating a strong heat absorption effect, which directly acts on the battery part of the vehicle chassis, quickly absorbs the heat of the battery and the chassis, and greatly reduces its temperature; water is also sprayed onto the vehicle chassis simultaneously, and by utilizing the characteristic of the large specific heat capacity of water, it further absorbs the heat of the chassis, avoids combustion caused by high temperature, and continuously monitors the temperature of the vehicle chassis, especially the temperature change of the battery.

[0051] Judgment and Further Response

[0052] After the initial protection measures are implemented, if the temperature sensor continuously detects abnormal temperature of the vehicle chassis and the gas sensor detects smoke (indicating that a fire may have occurred), the controller will initiate the subsequent process. First, it sends an instruction to the telescopic rod in the lifting assembly. Under the control of the controller, the telescopic rod quickly expands and contracts, driving the lifting frame to rise smoothly. The high-temperature and waterproof cloth connected to the lifting frame unfolds accordingly, isolating the burning vehicle from the surrounding environment, preventing the spread of fire, and protecting the surrounding vehicles and facilities from the impact of battery fire.

[0053] Water Injection for Fire Extinguishing

[0054] After the high-temperature and waterproof cloth successfully rises to construct a relatively enclosed space, the controller sends an instruction to the liquid outlet assembly again according to the pre-set program. At this time, the liquid outlet assembly is continuously connected to the water inlet pipe, and a large area of water flows out under the vehicle chassis, gradually submerging the battery. Due to the characteristics of new energy vehicle battery fires, water can effectively reduce the battery temperature, inhibit its thermal runaway reaction, and prevent the battery from further burning, thereby achieving the purpose of extinguishing the fire and preventing re-ignition.

[0055] Embodiment 2

[0056] Based on Embodiment 1, the medium in the medium storage device includes perfluoromethylcyclohexane. The above setting is not limited, and the medium in the medium storage device can also be other flame retardant media.

[0057] Working Principle:

[0058] Vehicle Status Monitoring

[0059] The gas sensors in the detection assembly are distributed on the floating platform and the parking space platform, and can sensitively detect the change of the gas components around the vehicle, and promptly detect the toxic and harmful gases or smoke generated when a new energy vehicle catches fire; the temperature sensor monitors the temperature of the vehicle chassis, especially the battery part, in real time. These sensors transmit the monitoring data to the controller in real time, providing a basis for subsequent judgment and operation.

[0060] Initial Protection

[0061] When the temperature sensor detects that the temperature of the battery part of the vehicle chassis rises abnormally and reaches the pre-set warning threshold, or the gas sensor detects smoke (indicating that a fire may have started), the controller responds quickly and sends instructions to the liquid outlet component. The nozzle in the liquid outlet component is connected to the medium storage device (containing perfluorohexanone) through a solenoid valve. Perfluorohexanone sprays out from the nozzle and quickly covers the entire battery range of the vehicle chassis. Perfluorohexanone has good fire extinguishing performance, its boiling point is low, it can be quickly vaporized at room temperature, absorb a large amount of heat, thereby quickly reducing the temperature of the battery and chassis, and effectively suppressing the development of the fire. During this process, the detection component continuously monitors the temperature changes of the battery part of the vehicle chassis.

[0062] Judgment and further response

[0063] After taking the initial perfluorohexanone fire extinguishing measures, if the temperature sensor still detects abnormal temperature in the battery area of ​​the vehicle chassis, and the gas sensor continues to detect smoke, it indicates that the fire is still ongoing. At this time, the controller sends a command to the telescopic rod in the lifting assembly, and the telescopic rod quickly retracts and retracts under the control of the controller, driving the lifting frame to rise smoothly. Since the fixed end of the high-temperature resistant waterproof cloth is connected to the base frame of the lifting assembly and the movable end is connected to the lifting frame, as the lifting frame rises, the high-temperature resistant waterproof cloth unfolds, isolating the burning vehicle from the surrounding environment, forming a relatively closed space, effectively preventing the fire from spreading to surrounding vehicles and facilities, and avoiding the expansion of the fire range.

[0064] Water injection for fire extinguishing

[0065] After the high-temperature waterproof cloth is successfully unfolded to form a closed space, the controller sends instructions to the liquid outlet component according to the pre-set program. At this time, the liquid outlet component is connected to the water inlet pipe, and a large amount of water is sprayed from under the car chassis, gradually raising the water level in a flooding manner until the battery is completely submerged. In view of the characteristics of battery fires in new energy vehicles, water can continuously and effectively reduce the battery temperature and inhibit its thermal runaway reaction, thereby achieving the purpose of extinguishing the fire and preventing re-ignition.

[0066] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic fire extinguishing device for a garage, comprising a garage floor, characterized in that: A parking platform is arranged on the ground of the garage, and a fire extinguishing device is arranged on the parking platform. The fire extinguishing device comprises a lifting assembly, a liquid outlet assembly, a detection assembly, and a high temperature resistant waterproof cloth. The lifting assembly, the liquid outlet assembly, and the detection assembly are all connected to the parking platform, and the liquid outlet assembly and the detection assembly are both located in the lifting assembly. The high temperature resistant waterproof cloth comprises a fixed end and a movable end, the fixed end is connected to the base frame of the lifting assembly, and the movable end is connected to the lifting frame of the lifting assembly. The detection assembly is used to detect whether there is an abnormality in the vehicle. A controller is arranged near the parking platform, and the controller is connected to the lifting assembly, the liquid outlet assembly, and the detection assembly through wires.

2. The automatic fire extinguishing device for a garage according to claim 1, characterized in that: A floating platform is arranged on the parking platform, and the liquid outlet component and the detection component are both installed on the floating platform.

3. The automatic fire extinguishing device for a garage according to claim 2, characterized in that: The detection component includes a gas sensor, and the floating platform and the parking platform are both connected with the gas sensor, and the gas sensor is connected to the controller through a wire.

4. The automatic fire extinguishing device for a garage according to claim 1, characterized in that: The detection component includes a temperature sensor, and the temperature sensor is connected to the controller through a wire.

5. The automatic fire extinguishing device for a garage according to claim 1, characterized in that: The parking platform is provided with a parking sensor and a parking indicator light, and the parking sensor and the parking indicator light are both connected to the controller via wires.

6. The automatic fire extinguishing device for a garage according to claim 1, characterized in that: The lifting assembly includes a base frame, a lifting frame, and a telescopic rod. The base frame is connected to the parking platform. Both ends of the telescopic rod are respectively hinged to the base frame and the lifting frame. The telescopic rod is connected to the controller through a wire.

7. The automatic fire extinguishing device for a garage according to claim 6, characterized in that: An auxiliary movable bracket is arranged between the base frame and the lifting frame.

8. The automatic fire extinguishing device for a garage according to claim 6, characterized in that: The base frame and the lifting frame fit each other.

9. The automatic fire extinguishing device for a garage according to claim 1, characterized in that: The outer wall of the parking platform is provided with an anti-slip slope.

10. The automatic fire extinguishing device for a garage according to claim 1, characterized in that: The liquid outlet assembly comprises a nozzle, a water inlet pipe and a medium storage device. The nozzle is connected to the water inlet pipe and the medium storage device through a pipeline and the solenoid valve respectively.

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