An automatic fire extinguishing device for a single parking space of a car and a continuous parking space automatic fire extinguishing system

Abstract

The utility model discloses an automatic fire extinguishing device and continuous parking stall automatic fire extinguishing system of car single parking stall, single parking stall automatic fire extinguishing device includes fire blanket and support, and the both ends of each roller are connected with hot cut line, and hot cut line holds up roller and makes roller fixed at high position of inclined plane frame, and the other end of hot cut line extends to ground parking stall from the rear end of support downward, and passes through the fixed ring of the rear end of parking stall, and extends to the front end of parking stall along the ground, and is fixed on the fixed ring of the front end of parking stall, and continuous parking stall automatic fire extinguishing system includes fire extinguishing device, fire monitoring mechanism and drive mechanism, and the upper side of continuous parking stall is equipped with track, and fire extinguishing device is hung on track and can be driven along track by drive mechanism. The utility model has the advantages of simple structure, low cost, safe and reliable, easy maintenance, quick response, good fire extinguishing effect etc.

Description

Technical Field

[0001] This utility model relates to the field of automotive fire extinguishing devices. Background Technology

[0002] With the increasing popularity of new energy vehicles, their safety issues have become more prominent. The hazards are particularly acute in the specific scenario of indoor parking lots: when a new energy vehicle catches fire, the fire spreads rapidly, and traditional water-based fire extinguishing methods are ineffective and difficult to control quickly; furthermore, the relatively enclosed space and potentially limited access in indoor parking lots often make it difficult for fire trucks to enter and carry out rescue operations. This undoubtedly exacerbates the risk of the fire getting out of control, posing significant challenges to personnel evacuation and property protection, and placing higher demands on the parking lot's fire safety system and emergency response capabilities.

[0003] Currently, there are many problems that urgently need to be solved in the practical application of fire extinguishing systems for parking spaces: 1. The complex structure and numerous integrated electromechanical control components not only increase the potential risk of system failure but also raise the difficulty of daily maintenance. In China, many property management companies neglect the maintenance of fire protection facilities, resulting in these fire extinguishing systems failing to function properly after one or two decades of installation, often due to component aging and functional malfunctions, thus failing to achieve the expected fire extinguishing effect when a fire actually occurs.

[0004] 2. Only one fire suppression system can be installed per parking space, and the overall size is close to that of the parking space. If the system were installed in every parking space, it would occupy a significant amount of parking space, affecting the comfort and convenience of passage. Furthermore, this full-space coverage installation method would incur high costs, including equipment procurement, installation, and subsequent maintenance, placing a considerable financial burden on parking lot operators and hindering the promotion and widespread adoption of this type of fire suppression system.

[0005] 3. For electric vehicles, since the battery fire occurs under the vehicle, existing fire detectors are located above the parking space. However, the burning battery is at the bottom of the car, meaning it can only be detected after the vehicle itself catches fire. This prevents timely detection and control of the fire, by which time the fire may have already ignited nearby vehicles. For consecutive parking spaces, each car has multiple fire detectors, making it difficult to pinpoint the exact location of the burning vehicle. When a car is burning, detectors above it and in adjacent parking spaces may be triggered, and the fire could also ignite nearby cars, making precise fire suppression impossible. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide an automatic fire extinguishing device for single parking spaces and an automatic fire extinguishing system for continuous parking spaces that is simple in structure, low in cost, safe and reliable, easy to maintain, fast in response and has good fire extinguishing effect, in view of the shortcomings of the existing technology.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: An automatic fire extinguishing device for a single car parking space includes a fire blanket and a support frame. The length of the parking space is considered the front-to-back direction, the width the left-to-right direction, and the height the up-to-down direction. Counterweights are installed at both the front and rear ends of the fire blanket, and rollers are installed at both the left and right ends. In the folded state, the front and rear ends of the fire blanket are folded inwards, and the left and right ends are rolled inwards around the rollers. The support frame is suspended above the parking space. Each side of the support frame has a symmetrically arranged inclined frame for holding the rollers. Each inclined frame includes two inclined rods perpendicular to the length of the parking space and inclined downwards. The ends of the inclined rods have arc-shaped guides to guide the rollers vertically downwards. Each roller has thermal break wires connected to both ends. Pull both ends of the roller to fix it at the high position of the inclined frame. The other end of the thermal break wire goes from the front end of the bracket to the bottom of the fire blanket, and then passes through the bottom of the fire blanket to the fixing ring installed at the rear end of the bracket. It then extends downward from the rear end of the bracket to the ground parking space, passes through the fixing ring installed at the rear end of the parking space, and extends forward along the ground to the front end of the parking space, where it is fixed to the fixing ring installed at the front end of the parking space. When a car parked in the parking space catches fire, the thermal break wire breaks due to heat. After the roller loses the tension of the thermal break wire, it rolls down the inclined frame. After hitting the arc-shaped guide, it changes its direction of movement and falls vertically. The left and right ends of the fire blanket unfold at the same time as the roller rolls down. During the fall, the folded parts at the front and rear ends of the fire blanket unfold under the traction of the counterweight. After falling onto the car, the fire blanket continues to unfold around the car to completely cover it.

[0008] As a further improvement to the aforementioned automatic fire extinguishing device for a single parking space, the arc-shaped guide part includes an arc-shaped guide rod and a connecting rod. One end of the connecting rod is connected to the outside of the end of the inclined rod, and the other end of the connecting rod is connected to the arc-shaped guide rod. A falling channel for the roller to pass through is formed between the guide surface of the arc-shaped guide rod and the end face of the inclined rod. The connecting rod is bent outward to avoid blocking the end of the roller.

[0009] As a further improvement to the above-mentioned automatic fire extinguishing device for a single parking space, when folding, the parts of the fire blanket that are longer than the parking space at both ends are first folded in a Z-shape once or multiple times. After folding, the length of the fire blanket is slightly greater than the length of the parking space, with the counterweight facing outwards. Then, the left and right ends of the fire blanket are rolled inwards onto the roller.

[0010] As a further improvement to the aforementioned automatic fire extinguishing device for a single parking space, the fire blanket is provided with perfluorohexanone microcapsule fire extinguishing components around its bottom perimeter.

[0011] An automatic fire extinguishing system for continuous parking spaces includes a fire extinguishing device, a fire monitoring mechanism, and a drive mechanism. With the length of the parking space as the front-to-back direction, the width as the left-to-right direction, and the height as the up-to-down direction, a track parallel to the ground is provided above the continuous parking spaces along the arrangement of the spaces. The fire extinguishing device is suspended on the track and can be moved along the track by the drive mechanism. Each parking space is equipped with a fire monitoring mechanism. The monitoring device of the fire monitoring mechanism is set on the ground of the parking space to monitor for fires under the cars. When a fire is detected, it triggers the drive mechanism to move the fire extinguishing device above the parking space where the fire has occurred. The fire extinguishing device includes a fire blanket and a bracket. Counterweights are installed at the front and rear ends of the fire blanket, and rollers are installed at the left and right ends of the fire blanket. In the folded state, the front and rear ends of the fire blanket fold inwards, and the left and right ends of the fire blanket... The roller is wound inward at one end; the bracket is suspended on a track and can be driven by a drive mechanism to move along the track. Each side of the bracket is provided with an inclined frame for placing the roller. The two inclined frames are arranged symmetrically. Each inclined frame includes two inclined rods that are perpendicular to the length of the parking space and tilt downward. The ends of the inclined rods are provided with arc-shaped guide parts to guide the roller to move vertically downward. It also includes a fixing mechanism for fixing the roller at a high position of the inclined frame. The fixing mechanism can release the roller when the bracket moves above the parking space where the fire occurs. After being released, the roller rolls down along the inclined frame. After hitting the arc-shaped guide parts, it changes the direction of movement and falls vertically. The left and right ends of the fire blanket unfold at the same time as the roller rolls down. During the fall, the folded parts at the front and rear ends of the fire blanket unfold under the traction of the counterweight. After falling onto the car, the fire blanket continues to unfold around the car to completely cover the car.

[0012] As a further improvement to the aforementioned fire extinguishing system, the fixing mechanism includes a fixing rope, an L-shaped pin, and a pin seat. The pin seat is fixedly installed at the rear end of the bracket, and the axis of the pin seat is parallel to the track. The L-shaped pin includes a main body and a bent portion. The main body of the L-shaped pin is slidably fitted inside the pin seat, and the end of the main body extends out of the pin seat. The bent portion of the L-shaped pin faces the rear of the parking space. One end of the fixing rope is connected to both ends of two rollers, pulling the rollers to fix them at the high position of the inclined frame. The other end of the fixing rope is fitted around the L-shaped pin body extending out of the bracket. The end outside the pin seat; the drive mechanism includes an intelligent motor and two metal rods or metal wires connected to the intelligent motor signal line. The two metal rods are arranged above the rear end of the continuous parking space and parallel to the track, and the two metal rods are located on the same horizontal plane; the fire monitoring mechanism includes a sleeve, an L-shaped metal positioning rod, a lifting ring, and a thermal break wire. There are two tracks, respectively arranged above the front end and the rear end of the parking space. The sleeve and the lifting ring are both fixed to the track above the rear end of the parking space. The L-shaped metal positioning rod includes a main body and a bent part. The main body of the L-shaped metal positioning rod is inserted into the sleeve from the upper end and extends out from the lower end of the sleeve. The bent part of the L-shaped metal positioning rod is held in place by a thermal break wire, so that the bent part of the L-shaped metal positioning rod is directly above the two metal rods and maintains a certain distance from the metal rods. The other end of the thermal break wire passes through the lifting ring and extends downward to the ground parking space, passes through the fixing ring installed at the rear end of the parking space, extends forward along the ground to the front end of the parking space, and is fixed to the fixing ring installed at the front end of the parking space. When the bottom of the car catches fire, the thermal break wire breaks due to heat, and the L-shaped metal positioning rod loses the tension of the thermal break wire and then... As the sleeve falls downwards, the bent part of the L-shaped metal positioning rod lands precisely on the two metal rods, thus activating the control circuit between the two metal rods. This causes the intelligent motor to start and drive the bracket to move from one end of the track to the other. When the bracket moves above the parking space of the burning car, the bent part of the L-shaped pin collides with the lower end of the main body of the L-shaped metal positioning rod above the parking space, causing the main end of the L-shaped pin to slide out of the pin seat. This causes the fixing rope to detach from the main end of the L-shaped pin, and the roller, losing the tension of the fixing rope, rolls down the inclined frame. The fire blanket unfolds and falls to cover the car.

[0013] As a further improvement to the above-mentioned fire extinguishing system, the arc-shaped guide part includes an arc-shaped guide rod and a connecting rod. One end of the connecting rod is connected to the outside of the end of the inclined rod, and the other end of the connecting rod is connected to the arc-shaped guide rod. A falling channel for the roller to pass through is formed between the guide surface of the arc-shaped guide rod and the end face of the inclined rod. The connecting rod is bent outward to avoid blocking the end of the roller.

[0014] As a further improvement to the above-mentioned fire extinguishing system, when folding, the front and rear ends of the fire blanket that are longer than the parking space are first folded in a Z-shape once or multiple times. After folding, the length of the fire blanket is slightly greater than the length of the parking space, with the counterweight facing outwards. Then, the left and right ends of the fire blanket are rolled inwards onto the roller.

[0015] As a further improvement to the above-mentioned fire extinguishing system, the fire blanket is provided with perfluorohexanone microcapsule fire extinguishing components around its bottom perimeter.

[0016] Compared with existing technologies, the advantages of this automatic fire extinguishing device for a single car space are as follows: This invention mainly consists of a fire blanket, a bracket, and a thermal break wire, with no electrical components. The overall structure is simple, low-cost, safe, reliable, and easy to maintain. The thermal break wire monitors the car fire, passing through the bottom of the fire blanket and extending along the ground from the rear to the front of the parking space. The thermal break wire surrounds the vehicle, ensuring that the wire breaks when the fire is on the car body or under the car, allowing for immediate detection and rapid release of the fire blanket to cover the burning vehicle. The fire blanket is normally folded; after release, both ends unfold simultaneously as it rolls down. During the fall, the folded sections at the front and rear ends unfold under the traction of a counterweight. After landing on the car, the fire blanket continues to unfold around the perimeter, completely covering the vehicle and achieving rapid fire extinguishing.

[0017] Compared with existing technologies, the advantages of this utility model's automatic fire extinguishing system for continuous parking spaces are: 1. This utility model is designed for continuous parking spaces. Only one movable fire extinguishing device needs to be installed on the track. Through the cooperation of the fire monitoring mechanism and the drive mechanism, the fire extinguishing device can be accurately delivered to the parking space of the burning car for fire extinguishing. The overall structure is simple and compact, low cost and small space occupation. Moreover, the fire extinguishing device is mainly composed of fire blanket and bracket, which further simplifies the structure. It is also safe, reliable and easy to maintain. 2. The fire monitoring device of this utility model is installed on the ground of the parking space to monitor the fire under the car. Compared with the traditional sensors installed on the top of the car, the fire monitoring device of this utility model is more suitable for electric vehicles. It can detect the fire at the first moment when the battery under the car catches fire, and the response is faster. The fire monitoring device uses a thermally broken wire that breaks when heated as the monitoring device. The thermally broken wire extends from the rear end of the parking space to the front end of the parking space. No matter whether the battery catches fire at the front, middle or rear of the car, the thermally broken wire will break when heated, which further improves the sensitivity of fire monitoring. The fire monitoring device and the fixing mechanism are purely mechanical structures with no electrical components, and the reliability of operation is high.

[0018] 3. The fire blanket in this utility model is normally in a folded state. After being released, the left and right ends of the fire blanket unfold simultaneously as it rolls down with the roller. During the fall, the folded parts at the front and rear ends of the fire blanket unfold under the traction of the counterweight. After falling onto the car, the fire blanket continues to unfold around the car to completely cover it, thereby achieving the effect of rapid fire extinguishing. Attached Figure Description

[0019] Figure 1This is a schematic diagram of the fire blanket in its fully deployed state according to this utility model.

[0020] Figure 2 This is a top view of the fire blanket in this utility model, which is fixed in a folded state at a high position on the inclined frame.

[0021] Figure 3 This is a rear view (viewed from the rear end of the parking space to the front end) of the single-parking space automatic fire extinguishing device of this utility model when the fire blanket is retracted and fixed.

[0022] Figure 4 This is a right view (viewed from the right side of the parking space to the left) of the single-parking space automatic fire extinguishing device of this utility model when the fire blanket is retracted and fixed. Figure 5 This is a rear view (viewed from the rear of the parking space to the front) of the single-parking space automatic fire extinguishing device of this utility model when the fire blanket is deployed.

[0023] Figure 6 This is a rear view (viewed from the rear of the parking space to the front) of the continuous parking space automatic fire extinguishing system of this utility model when no fire is detected and the fire blanket is not deployed.

[0024] Figure 7 This is a right view (viewed from the right side of the parking space to the left) of the continuous parking space automatic fire extinguishing system of this utility model in the state where no fire is detected and the fire blanket is not deployed. Figure 8 This is a rear view (viewed from the rear end of the parking space to the front end) of the continuous parking space automatic fire extinguishing system of this utility model when the thermal disconnect wire is broken by heat and the L-shaped metal positioning rod falls onto the two metal rods.

[0025] Figure 9 This is a right view (viewed from the right side of the parking space to the left) of the continuous parking space automatic fire extinguishing system of this utility model when the thermal disconnection wire is broken by heat and the L-shaped metal positioning rod falls on the two metal rods.

[0026] Figure 10 This is a rear view (viewed from the rear end to the front end) of the continuous automatic fire extinguishing system for parking spaces of this utility model when the fire extinguishing device is moved above the parking space of the burning car.

[0027] Figure 11 This is a rear view (viewed from the rear end of the parking space to the front end) of the continuous parking space automatic fire extinguishing system of this utility model when the fire blanket is deployed.

[0028] Figure 12 This is a top view showing the installation of the L-shaped pin and pin seat on the bracket in the continuous parking space automatic fire extinguishing system of this utility model.

[0029] Reference numerals: 1. Fire blanket; 11. Counterweight; 12. Roller; 2. Bracket; 21. Inclined frame; 211. Inclined rod; 212. Arc-shaped guide; 2121. Arc-shaped guide rod; 2122. Connecting rod; 3. Perfluorohexanone microcapsule fire extinguishing assembly; 4. Thermal break wire; 5. Fixing ring; 6. Track; 71. Fixing rope; 72. L-shaped pin; 73. Pin seat; 8. Metal rod; 91. Sleeve; 92. L-shaped metal positioning rod; 93. Lifting ring. Detailed Implementation

[0030] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the protection scope of the present invention is not limited to the following embodiments. Any improvements and modifications made to the present invention without departing from the principle of the present invention shall be considered within the protection scope of the present invention.

[0031] like Figures 1 to 5 As shown, the automatic fire extinguishing device for a single vehicle space of this utility model is mainly used for electric vehicles, but can also be used for oil vehicles. It includes a fire blanket 1 and a bracket 2.

[0032] The length of the parking space is considered the front-to-back direction, the width is considered the left-to-right direction, and the height is considered the up-to-down direction. See also... Figure 1 The fire blanket 1, when fully unfolded, is a flat blanket, preferably made of fire-resistant materials such as glass quartz fiber, and preferably 9m × 6m in size. Counterweights 11 are installed at both the front and rear ends of the fire blanket 1; these counterweights can be sandbags, iron rods, etc. Rollers 12, which are long, round rods, are installed at both the left and right ends of the fire blanket 1. (See also...) Figure 2 In the folded state, the front and rear ends of the fire blanket 1 are folded inward, and the left and right ends of the fire blanket 1 are rolled inward around the roller 12. When folding, first fold the part of the fire blanket 1 that is longer than the parking space in a Z-shape once or multiple times. After folding, the length of the fire blanket 1 is slightly longer than the length of the parking space, with the counterweight 11 facing outward. Then, roll the left and right ends of the fire blanket 1 inward around the roller 12.

[0033] The bracket 2 is suspended above the parking space. Each side of the bracket 2 has a sloping frame 21 for placing the roller 12. The two sloping frames 21 are arranged symmetrically. Each sloping frame 21 includes two inclined rods 211, one at the front and one at the back, perpendicular to the length of the parking space and inclined downwards. The ends of the inclined rods 211 are provided with arc-shaped guide portions 212 to guide the roller 12 to move vertically downwards. Specifically, the arc-shaped guide portion 212 includes an arc-shaped guide rod 2121 and a connecting rod 2122. One end of the connecting rod 2122 is connected to the outer side of the end of the inclined rod 211, and the other end of the connecting rod 2122 is connected to the arc-shaped guide rod 2121. A falling channel for the roller 12 is formed between the guide surface of the arc-shaped guide rod 2121 and the end face of the inclined rod 211. The connecting rod 2122 is folded outwards to avoid obstructing the end of the roller 12.

[0034] See Figures 3 to 5 Each roller 12 has a heat-breaking wire 4 connected to both ends. The heat-breaking wire 4 holds both ends of the roller 12, fixing it to the high position of the inclined frame 21. The other end of the heat-breaking wire 4 goes from the front end of the bracket 2 to the bottom of the fire blanket 1, passes through the bottom of the fire blanket 1 to the fixing ring 5 installed at the rear end of the bracket 2, extends downward from the rear end of the bracket 2 to the ground parking space, passes through the fixing ring 5 installed at the rear end of the parking space, extends forward along the ground to the front end of the parking space, and is fixed to the fixing ring 5 installed at the front end of the parking space. The heat-breaking wire 4 is a rope that breaks when heated, preferably made of a material with a breaking temperature below 200 degrees Celsius, such as low-melting-point nylon hot melt yarn (melting point between 85℃ and 95℃) or ultra-high molecular weight polyethylene (melting point between 105℃ and 135℃). When a car body or bottom catches fire while parked in a parking space, the thermal break wire 4 breaks due to heat. After the roller 12 loses the tension of the thermal break wire 4, it rolls down along the inclined frame 21. After hitting the arc-shaped guide part 212, it changes its direction of movement and falls vertically. The left and right ends of the fire blanket 1 unfold at the same time as the roller 12 rolls down. During the fall, the folded parts at the front and rear ends of the fire blanket 1 unfold under the traction of the counterweight 11. After falling onto the car, the fire blanket 1 continues to unfold around the car to completely cover the car, thereby achieving the effect of rapid fire extinguishing.

[0035] Preferably, the bottom of the fire blanket 1 is equipped with perfluorohexanone microcapsule fire extinguishing components 3, which can be in the form of fire extinguishing patches, fire extinguishing ropes, fire extinguishing belts, etc. Upon contact with an open flame or when the temperature reaches 140°C, the capsule shell will automatically rupture, automatically releasing a highly efficient perfluorohexanone fire extinguishing agent. Perfluorohexanone extinguishes fires through a dual action of heat absorption and chemical inhibition, extinguishing initial fire sources within 10 seconds. It is particularly suitable for lithium-ion battery thermal runaway scenarios, as its vaporization properties allow it to penetrate into the battery pack, blocking the thermal runaway chain reaction, resulting in excellent fire extinguishing effects. With the combined action of the fire blanket 1 and perfluorohexanone, the fire and the spread of toxic gases can be quickly and effectively controlled, preventing the ignition of surrounding vehicles and buying valuable time for firefighters to extinguish the fire.

[0036] Preferably, the portion of the thermal break wire 4 on the ground and the side of the vehicle body is covered with a heat-conducting metal protective sleeve, which can provide daily protection and prevent the impact of the thermal break wire 4 burning on the vehicle at high temperatures.

[0037] like Figures 6 to 12As shown, this utility model's automatic fire extinguishing system for continuous parking spaces is mainly used for electric vehicles, but can also be used for gasoline vehicles. It includes a fire extinguishing device, a fire monitoring mechanism, and a drive mechanism. With the length of the parking space as the front-to-back direction, the width as the left-to-right direction, and the height as the up-to-down direction, a track 6 parallel to the ground is installed above the continuous parking spaces along the direction of the parking space arrangement. The fire extinguishing device is suspended from the track 6 by pulleys and can be driven to move along the track 6 by the drive mechanism. Each parking space is equipped with a fire monitoring mechanism. The monitoring device of the fire monitoring mechanism is installed on the ground of the parking space to monitor for fire under the car. When a fire is detected, it triggers the drive mechanism to move the fire extinguishing device to the parking space where the fire has occurred.

[0038] The fire extinguishing device includes a fire blanket 1 and a support 2, see [link / reference] Figure 1 The fire blanket 1, when fully unfolded, is a flat blanket, preferably made of fire-resistant materials such as glass quartz fiber, and preferably 9m × 6m in size. Counterweights 11 are installed at both the front and rear ends of the fire blanket 1; these counterweights can be sandbags, iron rods, etc. Rollers 12, which are long, round rods, are installed at both the left and right ends of the fire blanket 1. (See also...) Figure 2 In the folded state, the front and rear ends of the fire blanket 1 are folded inward, and the left and right ends of the fire blanket 1 are rolled inward onto the roller 12. When folding, the parts of the fire blanket 1 that are longer than the parking space are first folded in a Z-shape once or multiple times. After folding, the length of the fire blanket 1 is slightly longer than the length of the parking space, with the counterweight 11 facing outward. Then, the left and right ends of the fire blanket 1 are rolled inward onto the roller 12. The bracket 2 is suspended on the track 6 and can be driven by the drive mechanism to move along the track 6. There is a sloping frame 21 on each side of the bracket 2 for placing the roller 12. The two sloping frames 21 are arranged symmetrically. Each sloping frame 21 includes two sloping rods 211 that are perpendicular to the length of the parking space and inclined downward. The ends of the sloping rods 211 are provided with arc-shaped guide parts 212 to guide the rollers to move vertically downward. Specifically, the arc-shaped guide part 212 includes an arc-shaped guide rod 2121 and a connecting rod 2122. One end of the connecting rod 2122 is connected to the outer side of the end of the inclined rod 211, and the other end of the connecting rod 2122 is connected to the arc-shaped guide rod 2121. A falling channel for the roller 12 to pass through is formed between the guide surface of the arc-shaped guide rod 2121 and the end face of the inclined rod 211. The connecting rod 2122 is folded outward to avoid blocking the end of the roller 12.

[0039] The fire extinguishing device also includes a fixing mechanism for fixing the roller 12 to the high position of the inclined frame 21. The fixing mechanism can release the roller 12 when the bracket 2 moves above the parking space where the fire occurs. After being released, the roller 12 rolls down along the inclined frame 21. After hitting the arc-shaped guide part 212, it changes its direction of movement and falls vertically. The left and right ends of the fire blanket 1 unfold at the same time as the roller 12 rolls down. During the fall, the folded parts at the front and rear ends of the fire blanket 1 unfold under the traction of the counterweight 11. After falling onto the car, the fire blanket continues to unfold around the car to completely cover the car, thereby achieving the effect of rapid fire extinguishing.

[0040] See Figure 6 , Figure 7 , Figure 12 The fixing mechanism includes a fixing rope 71, an L-shaped pin 72, and a pin seat 73. The pin seat 73 is fixedly installed at the rear end of the bracket 2, and the axis of the pin seat 73 is parallel to the track 6. The L-shaped pin 72 includes a main body and a bent part. The main body of the L-shaped pin 72 is slidably sleeved in the pin seat 73, and the end of the main body extends out of the pin seat 73. The bent part of the L-shaped pin 72 faces the rear of the parking space. One end of the fixing rope 71 is connected to both ends of two rollers 12, pulling the rollers 12 to fix them at the high position of the inclined frame 21. The other end of the fixing rope 71 is sleeved on the end of the L-shaped pin 72 that extends out of the pin seat 73.

[0041] See Figure 6 , Figure 7 The drive mechanism includes a smart motor (omitted in the figure) and two metal rods 8 (or other conductors such as metal wires) connected to the signal lines of the smart motor. The two metal rods 8 are arranged above the rear end of the continuous parking space and parallel to the track 6, and the two metal rods 8 are located on the same horizontal plane.

[0042] See Figure 6 , Figure 7The fire monitoring mechanism includes a sleeve 91, an L-shaped metal positioning rod 92, a lifting ring 93, and a thermal break wire 4. There are two tracks 6, which are respectively arranged above the front and rear of the parking space. The sleeve 91 and the lifting ring 93 are both fixed on the track 6 above the rear of the parking space. The L-shaped metal positioning rod 92 includes a main body and a bent part. The main body of the L-shaped metal positioning rod 92 is inserted into the sleeve 91 from the upper end and extends out from the lower end of the sleeve 91. The bent part of the L-shaped metal positioning rod 92 is held by the thermal break wire 4, so that the bent part of the L-shaped metal positioning rod 92 is located directly above the two metal rods 8 and maintains a certain distance from the metal rods 8. The other end of the thermal break wire 4 passes through the lifting ring 93 and extends downward to the ground parking space. It passes through the fixing ring 5 installed at the rear of the parking space and extends forward along the ground to the front of the parking space, where it is fixed to the fixing ring 5 installed at the front of the parking space. The heat-breaking wire 4 is a rope that will break when heated. It is preferably made of materials with a breaking temperature below 200 degrees Celsius, such as low melting point nylon hot melt yarn (melting point between 85℃ and 95℃) and ultra-high molecular weight polyethylene (melting point between 105℃ and 135℃).

[0043] See Figures 8 to 11 When the battery at the bottom of the car catches fire, the thermal break wire 4 breaks due to heat. After losing the tension of the thermal break wire 4, the L-shaped metal positioning rod 92 falls downward along the sleeve 91, causing the bent part of the L-shaped metal positioning rod 92 to land on the two metal rods 8. This causes the two metal rods 8 to conduct the control circuit, start the intelligent motor, and drive the bracket 2 to move from one end of the track 6 to the other. When the bracket 2 moves above the parking space of the burning car, the bent part of the L-shaped pin 72 collides with the lower end of the main body of the L-shaped metal positioning rod 92 above the parking space, causing the main end of the L-shaped pin 72 to slide out from the pin seat 73. This causes the fixing rope 71 to detach from the main end of the L-shaped pin 72. After losing the tension of the fixing rope 71, the roller 12 rolls down along the inclined frame 21, causing the fire blanket 1 to unfold and fall onto the car to cover it.

[0044] In a preferred embodiment, the bottom of the fire blanket 1 is surrounded by perfluorohexanone microcapsule fire extinguishing components 3, which can be in the form of fire extinguishing patches, fire extinguishing ropes, fire extinguishing belts, etc. Upon contact with an open flame or when the temperature reaches 140°C, the capsule shell will automatically rupture, automatically releasing a highly efficient perfluorohexanone fire extinguishing agent. Perfluorohexanone extinguishes fire through a dual action of heat absorption and chemical inhibition, extinguishing the initial fire source within 10 seconds. It is particularly suitable for lithium-ion battery thermal runaway scenarios, as its vaporization properties allow it to penetrate into the battery pack, blocking the thermal runaway chain reaction, resulting in excellent fire extinguishing effects. With the combined action of the fire blanket 1 and perfluorohexanone, the fire and the spread of toxic gases can be quickly and effectively controlled, preventing the ignition of surrounding vehicles and buying valuable time for firefighters to extinguish the fire.

[0045] In a preferred embodiment, the thermal break wire 4 is covered with a heat-conducting metal protective sleeve on the ground and the side of the vehicle body, which can provide daily protection and prevent the impact of the thermal break wire 4 burning on the vehicle at high temperatures.

[0046] In a preferred embodiment, the fixing rope 71 is also made of heat-dissipated wire.

Claims

1. An automatic fire extinguishing device for a single parking space in a car, characterized in that: The system includes a fire blanket and a support frame. With the length of the parking space as the front-to-back direction, the width as the left-to-right direction, and the height as the up-to-down direction, the fire blanket has counterweights installed at both its front and rear ends, and rollers installed at its left and right ends. In the folded state, the front and rear ends of the fire blanket fold inwards, and the left and right ends are rolled inwards around the rollers. The support frame is suspended above the parking space. Each side of the support frame has a symmetrically arranged inclined frame for holding the rollers. Each inclined frame includes two diagonal rods perpendicular to the length of the parking space and inclined downwards. The ends of the diagonal rods have arc-shaped guides to guide the rollers vertically downwards. Each roller has thermal break wires connected to both ends, which hold the rollers in place. The roller is fixed at a high position on the inclined frame. The other end of the thermal break wire goes from the front end of the bracket to the bottom of the fire blanket, passes through the bottom of the fire blanket to the fixing ring installed at the rear end of the bracket, extends down from the rear end of the bracket to the ground parking space, passes through the fixing ring installed at the rear end of the parking space, extends forward along the ground to the front end of the parking space, and is fixed on the fixing ring installed at the front end of the parking space. When a car parked in the parking space catches fire, the thermal break wire breaks due to heat. After the roller loses the tension of the thermal break wire, it rolls down along the inclined frame. After hitting the arc-shaped guide, it changes its direction of movement and falls vertically. The left and right ends of the fire blanket unfold at the same time as the roller rolls down. During the fall, the folded parts at the front and rear ends of the fire blanket unfold under the traction of the counterweight. After falling onto the car, the fire blanket continues to unfold around the car to completely cover it.

2. The automatic fire extinguishing device for a single parking space of a car according to claim 1, characterized in that: The arc-shaped guide part includes an arc-shaped guide rod and a connecting rod. One end of the connecting rod is connected to the outside of the end of the inclined rod, and the other end of the connecting rod is connected to the arc-shaped guide rod. The guide surface of the arc-shaped guide rod and the end face of the inclined rod form a falling channel for the roller to pass through. The connecting rod is bent outward to avoid blocking the end of the roller.

3. The automatic fire extinguishing device for a single parking space of a car according to claim 1, characterized in that: When folding, first fold the parts of the fire blanket that are longer than the parking space at both ends in a Z-shape once or multiple times. After folding, the length of the fire blanket is slightly longer than the length of the parking space, with the counterweight facing outwards. Then, roll the left and right ends of the fire blanket inwards onto the roller.

4. The automatic fire extinguishing device for a single parking space of a car according to claim 1, characterized in that: The fire blanket is equipped with perfluorohexanone microcapsule fire extinguishing components around its bottom perimeter.

5. An automatic fire extinguishing system for continuous parking spaces, characterized in that: The system includes a fire extinguishing device, a fire monitoring mechanism, and a drive mechanism. With the length of the parking space as the front-to-back direction, the width as the left-to-right direction, and the height as the up-to-down direction, a track parallel to the ground is installed above each of the consecutive parking spaces, along the direction of the parking space arrangement. The fire extinguishing device is suspended on the track and can be moved along the track by the drive mechanism. Each parking space is equipped with a fire monitoring mechanism. The monitoring device of the fire monitoring mechanism is installed on the ground of the parking space to monitor for fires under the car. When a fire is detected, it triggers the drive mechanism to move the fire extinguishing device to the parking space where the fire is occurring. The fire extinguishing device includes a fire blanket and a bracket. Counterweights are installed at the front and rear ends of the fire blanket, and rollers are installed at the left and right ends. In the folded state, the front and rear ends of the fire blanket fold inward, and the left and right ends are rolled inward around the rollers. The bracket is suspended on a track and can be driven by a drive mechanism to move along the track. Each side of the bracket has a ramp for placing rollers, arranged symmetrically. Each ramp includes two inclined rods perpendicular to the length of the parking space and tilting downwards. The ends of the inclined rods have arc-shaped guides to guide the rollers vertically downwards. The bracket also includes a fixing mechanism for fixing the rollers at a high position on the ramp. The fixing mechanism can release the rollers when the bracket moves above the parking space where a fire occurs. After release, the rollers roll down the ramp, change direction upon hitting the arc-shaped guides, and fall vertically. The fire blanket unfolds simultaneously with the rollers as they roll down. During the fall, the folded portions at the front and rear ends of the fire blanket unfold under the traction of a counterweight. After falling onto the car, the fire blanket continues to unfold around the perimeter, completely covering the car.

6. The automatic fire extinguishing system for continuous parking spaces of automobiles according to claim 5, characterized in that: The fixing mechanism includes a fixing rope, an L-shaped pin, and a pin seat. The pin seat is fixedly installed at the rear end of the bracket, and its axis is parallel to the track. The L-shaped pin includes a main body and a bent portion. The main body of the L-shaped pin is slidably fitted inside the pin seat, with one end extending beyond the pin seat. The bent portion of the L-shaped pin faces the rear of the parking space. One end of the fixing rope is connected to both ends of two rollers, pulling the rollers to fix them at a high position on the inclined plane frame. The other end of the fixing rope is fitted around the end of the L-shaped pin that extends beyond the pin seat. The drive... The mechanism includes a smart motor and two metal rods or wires connected to the smart motor's signal lines. The two metal rods are positioned above the rear end of the continuous parking space and parallel to the track, with both rods on the same horizontal plane. The fire monitoring mechanism includes a sleeve, an L-shaped metal positioning rod, a lifting ring, and a thermal break wire. Two tracks are provided, one above the front end and the other above the rear end of the parking space. The sleeve and lifting ring are both fixed to the tracks above the rear end of the parking space. The L-shaped metal positioning rod includes a main body and a bent portion. The main body of the L-shaped metal positioning rod... The upper end of the sleeve is inserted into the sleeve and extends out from the lower end of the sleeve. The bent part of the L-shaped metal positioning rod is held by a thermal break wire, so that the bent part of the L-shaped metal positioning rod is directly above the two metal rods and maintains a certain distance from the metal rods. The other end of the thermal break wire passes through the lifting ring and extends downward to the ground parking space, passes through the fixing ring installed at the rear of the parking space, extends forward along the ground to the front of the parking space, and is fixed to the fixing ring installed at the front of the parking space. When the bottom of the car catches fire, the thermal break wire breaks due to heat. After the L-shaped metal positioning rod loses the tension of the thermal break wire, it extends along the sleeve... As the rod falls, the bent part of the L-shaped metal positioning rod lands precisely on the two metal rods, thus activating the control circuit. This causes the intelligent motor to start and drive the support to move from one end of the track to the other. When the support moves above the parking space of the burning car, the bent part of the L-shaped pin collides with the lower end of the main body of the L-shaped metal positioning rod above the parking space, causing the main end of the L-shaped pin to slide out of the pin seat. This causes the fixing rope to detach from the main end of the L-shaped pin, and the roller, losing the tension of the fixing rope, rolls down the inclined frame. The fire blanket unfolds and falls to cover the car.

7. The automatic fire extinguishing system for continuous parking spaces of automobiles according to claim 5 or 6, characterized in that: The arc-shaped guide part includes an arc-shaped guide rod and a connecting rod. One end of the connecting rod is connected to the outside of the end of the inclined rod, and the other end of the connecting rod is connected to the arc-shaped guide rod. The guide surface of the arc-shaped guide rod and the end face of the inclined rod form a falling channel for the roller to pass through. The connecting rod is bent outward to avoid blocking the end of the roller.

8. The automatic fire extinguishing system for continuous parking spaces of automobiles according to claim 5 or 6, characterized in that: When folding, first fold the parts of the fire blanket that are longer than the parking space at both ends in a Z-shape once or multiple times. After folding, the length of the fire blanket is slightly longer than the length of the parking space, with the counterweight facing outwards. Then, roll the left and right ends of the fire blanket inwards onto the roller.

9. The automatic fire extinguishing system for continuous parking spaces of automobiles according to claim 5 or 6, characterized in that: The fire blanket is equipped with perfluorohexanone microcapsule fire extinguishing components around its bottom perimeter.

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