Fire extinguishing device of mechanical unmanned parking garage

Abstract

The invention discloses a fire extinguishing device of a mechanical unmanned parking garage, and belongs to the technical field of intelligent parking lots, the fire extinguishing device comprises a rail system, a traction mechanism, a fire extinguishing system and an intelligent control system, the rail system comprises at least two guide rails symmetrically arranged on the two sides in the length direction of a parking space, and the two guide rails are fixedly connected through a support; the traction mechanism comprises a traction piece and a driving assembly, and the driving assembly is arranged on the lateral lower portion of the parking space and used for driving the traction piece to move along the guide rail; the fire extinguishing system comprises an expandable fire blanket and a storage mechanism; and the intelligent control system comprises a monitoring sensor for monitoring the fire behavior and a control unit, and the control unit is in communication connection with the monitoring sensor and the driving assembly. According to the method, the ignition point can be accurately positioned, directional fire extinguishing is carried out aiming at the specific ignition point, the fire extinguishing efficiency is improved, the rapid response problem during early-stage ignition of the vehicle is effectively solved, and unnecessary economic losses caused by large-area release of the fire extinguishing agent can be reduced.

Description

Technical Field

[0001] This invention belongs to the field of smart parking technology, specifically relating to a fire extinguishing device for a mechanical unmanned parking garage. Background Technology

[0002] With the increasing demand for urban parking, intensive and automated unmanned mechanical parking garages have been widely used. These garages use mechanical lifting and traversing devices to store and retrieve vehicles, achieving efficient space utilization. However, their unique operating mode also brings unique fire safety challenges. From an operational perspective, these garages operate completely unmanned under normal conditions, with personnel only briefly stopping to retrieve their vehicles. While this reduces the probability of fires caused by open flames such as smoking, it also means the loss of the timely detection and reporting mechanism for initial fires found in traditional parking lots. Analysis of fire risk sources reveals the following main potential hazards: First, the safety risks inherent in the vehicles themselves. Modern automobiles are equipped with complex electrical systems and electronic devices, and issues such as aging wiring and short circuits can lead to fires. In particular, the rapid development of new energy vehicles has brought new challenges. Large-capacity lithium-ion batteries may experience thermal runaway when overcharged, involved in a collision, or when thermal management fails, generating large amounts of flammable gas accompanied by violent combustion. Second, the operational risks of mechanical equipment. Elevators, traverse mechanisms, and other mechanical equipment in garages operate continuously for extended periods, and may generate high temperatures due to motor overload, mechanical friction, or other reasons, potentially leading to fires. Third, the risks associated with electrical systems. Power supply lines and control equipment in garages may generate electrical sparks due to insulation aging, poor contact, or other issues during long-term use.

[0003] Compared to traditional parking lots, the fire development patterns in unmanned mechanical parking garages are more complex. Due to the dense parking and close spacing between adjacent vehicles, conditions are conducive to the rapid spread of fire. Once a fire breaks out, high-temperature smoke can quickly spread through the garage's vertical passageways, creating a chimney effect that can affect multiple floors in a short time. Simultaneously, while the enclosed structure of the garage facilitates the operation of automated equipment, it also makes smoke extraction difficult during a fire, leading to the accumulation of high temperatures and toxic gases, further exacerbating the fire's development. Studies have shown that under the specific conditions of a mechanical parking garage, a fire can develop into full-blown combustion within 10-15 minutes, leaving extremely limited time for fire suppression systems to respond.

[0004] In existing technologies, alarms are primarily triggered by heat and smoke detectors, and fires are extinguished through automatic sprinkler systems or total flooding gas extinguishing systems. However, traditional heat and smoke detectors have slow response times in large spaces, often only triggering an alarm when the fire has developed to a certain stage, easily missing the optimal extinguishing opportunity. While conventional automatic sprinkler systems can achieve full-area coverage, water spraying may cause secondary damage to electrical equipment, and their effectiveness in extinguishing deep fires is limited. Although total flooding gas extinguishing systems can avoid water damage, it is difficult to ensure that the extinguishing agent concentration reaches an effective extinguishing level in environments with dense traffic. Most importantly, existing extinguishing systems lack precise positioning capabilities, failing to target specific fire points for extinguishing, resulting in low extinguishing efficiency and potentially causing unnecessary economic losses due to the large-scale release of extinguishing agents. Summary of the Invention

[0005] The purpose of this invention is to provide a fire extinguishing device for a mechanical unmanned parking garage, which can accurately locate the fire point and carry out targeted fire extinguishing for the specific fire point, thereby improving fire extinguishing efficiency, effectively solving the problem of rapid response when a vehicle catches fire in its early stages, and reducing unnecessary economic losses caused by the large-scale release of fire extinguishing agents.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is: a fire extinguishing device for a mechanical unmanned parking garage, comprising: a track system including at least two guide rails symmetrically arranged on both sides of the length direction of the parking space, the two guide rails being fixedly connected by a bracket, each guide rail including a horizontal section and at least one vertical section, the vertical section and the horizontal section being smoothly connected by an arc section, thereby forming a continuous path across the car in the parking space in the vertical plane; a traction mechanism including a traction component and a drive assembly, the traction component including a roller, the diameters of the two ends of the roller being smaller than the diameter of the middle section, the two ends of the roller being slidably connected to the two guide rails by a sliding connection assembly; the drive assembly being disposed at a position corresponding to the guide rail below the side of the parking space, for driving the traction component to move along the guide rail; the drive assembly including a traction rope and a reel assembly, one end of the traction rope being connected to the reel assembly, and the other end being connected to the roller; The fire extinguishing system includes an deployable fire blanket and a storage mechanism. One side of the fire blanket is fixedly connected to the roller, and the opposite side is initially stored in the storage mechanism. Flexible counterweights are fixedly connected to both sides of the fire blanket along its width direction. The flexible counterweights are fixedly connected to sliding connection components at both ends of the roller. The storage mechanism is located on one side along the width direction of the parking space and is fixedly installed on the outside of the adjacent vertical section of the track. Its length is equal to the distance between the two guide rails. The intelligent control system includes a monitoring sensor for monitoring the fire and a control unit. The control unit is communicatively connected to the monitoring sensor and the drive assembly.

[0007] Furthermore, the sliding connection assembly includes a sliding sleeve sleeved at both ends of the roller and slidable along its axial direction. The sliding sleeve is fixedly connected to the flexible counterweight. An elastic element is provided between the roller and the sliding sleeve. The elastic element is sleeved at the end of the roller and is located between the sliding sleeve and the stepped end face on the roller. Its elastic force causes the sliding sleeve to have a tendency to move outward from the end of the roller.

[0008] Furthermore, grooves are provided on the opposite sides of the two guide rails, and a notch is provided on the lower side rail wall of the top horizontal section of the guide rail. A trapezoidal block is provided on the upper side rail wall at the position corresponding to the notch, and the long side of the trapezoidal block is fixedly connected to the upper side rail wall. An abutment rod is fixed on the sliding sleeve to abut against the groove of the guide rail. When the traction member moves to the vicinity of the notch, the abutment rod contacts the inclined surface of the trapezoidal block and is pressed down, so that the sliding sleeve overcomes the elastic force of the elastic member and slides inward along the roller axis, thereby driving the flexible counterweight to move to the notch position, and finally making it break away from the constraint of the guide rail at the notch 115.

[0009] Optionally, the guide rail includes a vertical section and a horizontal section, and is in the shape of an inverted L; the storage mechanism is a box with one open side, and the fire blanket is folded and housed in the box.

[0010] Optionally, each guide rail (11) includes two vertical sections and one horizontal section fixed on both sides of the parking space. The horizontal section is connected to the top of the two vertical sections through an arc section, forming an n-shape. The storage mechanism includes a mounting plate fixed on the vertical section of the guide rail, a take-up roller rotatably connected to the mounting plate, and a second power source that drives the take-up roller to rotate. One end of the fire blanket is fixed to the take-up roller.

[0011] Furthermore, two parallel guide plates are fixedly installed on the mounting plate, and arc-shaped blocks are fixedly connected to the opposite inner surfaces of the two guide plates at both ends; the distance between the two opposite arc-shaped blocks is smaller than the distance between the two guide plates, thereby dividing the space between the two guide plates into a sorting area at both ends and a storage area in the middle.

[0012] Furthermore, the drive assembly also includes a first power source and a rotating shaft driven by the first power source. The length of the rotating shaft is equal to the distance between the two guide rails. There are two reel assemblies and two traction ropes. The reel assemblies are fixed to both ends of the rotating shaft, and the traction ropes are wound around the reel assemblies.

[0013] Furthermore, the reel assembly includes a first reel and a second reel coaxially fixedly connected, and the traction rope includes a first rope and a second rope. One end of the first rope is fixed and wound around the first reel, and the other end is fixed to the roller. One end of the second rope is fixed and wound around the second reel, and the other end is fixed to the roller. The first power source is a motor, which drives the reel assembly to rotate in both directions, so that the first reel and the second reel can be wound and unwound synchronously, thereby causing the roller to move bidirectionally along the continuous path defined by the guide rail.

[0014] Furthermore, the monitoring sensors include a camera for acquiring video images of the parking space, a smoke sensor for detecting smoke concentration, and a temperature sensor for monitoring ambient temperature.

[0015] A fire extinguishing method for a mechanical unmanned parking garage includes the following steps: Step 1: Monitor the status of the parking space through monitoring sensors. When the monitoring sensors detect a fire in the parking space, they send a signal to the control unit. Step 2: The control unit activates the drive assembly, pulling the traction component upwards along the vertical section of the guide rail via the traction rope, thus pulling the fire blanket out of the storage mechanism. Step 3: When the traction component enters the horizontal section of the guide rail and moves to the notch position, the abutment rod interacts with the trapezoidal block, causing the flexible counterweight to detach from the guide rail's constraint and hang freely. Step 4: The traction component continues to move the fire blanket to the end of the guide rail. Under its own weight and the downward pull of the flexible counterweight, the fire blanket fully covers the vehicle, completing the fire extinguishing operation. Step 5: After the fire extinguishing operation is completed, the control unit controls the first power source of the drive assembly to reverse, pulling the traction component back along the guide rail via the traction rope. Simultaneously, it controls the second power source to activate, driving the winding roller to rotate and actively wind the fire blanket back into the storage mechanism.

[0016] The beneficial effects of the above technical solution are as follows: This invention, through a track system, traction mechanism, fire extinguishing system, and intelligent control system, effectively solves the problem of traditional fire protection systems' inability to respond quickly and accurately in dense parking lots. The track system allows the fire blanket to be smoothly lifted along a predetermined path from the storage mechanism on the side of the parking space to the top of the vehicle, then moved horizontally to directly above the fire point. Under gravity, it then detaches from the track and precisely covers the burning vehicle, effectively solving the problem of spatial interference. The rollers in the traction mechanism ensure the fire blanket unfolds flat, while the flexible counterweights on both sides of the blanket adapt to the vehicle's contours, thoroughly wrapping the sides and chassis to create a nearly enclosed fire extinguishing space, further enhancing side coverage and significantly improving the efficiency of suffocation fire suppression. The drive component is located on the lower side of the parking space, effectively avoiding the fire point and reducing the threat of fire to the device. The intelligent control system ensures that no manual intervention is required throughout the process, greatly shortening the response time from fire detection to fire extinguishing action.

[0017] This invention achieves fully automatic reset after firefighting operations by incorporating a fire blanket recovery device. The winding roller ensures the fire blanket is recovered smoothly, while the sorting area formed by the guide plate and arc-shaped block effectively separates and organizes the flexible counterweight, fundamentally avoiding jamming caused by component entanglement. This significantly improves the system's long-term operational stability and maintenance-free nature, ensuring the system is always in a reusable standby state and meeting the high requirements for autonomous operation of firefighting equipment in unattended scenarios.

[0018] The intelligent control system in this invention integrates multiple types of sensors, enabling early detection of fire characteristics from multiple dimensions such as vision, smoke, and temperature. This significantly improves the accuracy and timeliness of fire alarm identification, ensuring that the fire extinguishing device will only activate under actual fire conditions, effectively reducing the false alarm rate. At the same time, this invention suffocates the flames by physically isolating oxygen, avoiding water damage and secondary damage to non-burning vehicles, providing a highly efficient and clean fixed-point fire extinguishing solution for parking lots. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention; Figure 2 This is the present invention. Figure 1 The front view; Figure 3 This is a schematic diagram of the overall structure of the traction component in this invention; Figure 4 This is a schematic diagram of the overall structure of Embodiment 2 of the present invention; Figure 5 yes Figure 4 Enlarged view of the structure at point A in the middle; Figure 6 This is a schematic diagram of the overall structure of the fire blanket in this invention; Figure 7 This is a schematic diagram of the drive component structure of the present invention; Figure 8 This is a schematic diagram of the overall structure of the guide plate in Embodiment 2 of the present invention; Figure 9 This is a flowchart of the fire extinguishing method in this invention.

[0020] Explanation of reference numerals in the attached drawings: 1. Track system; 11. Guide rail; 111. Vertical section; 112. Horizontal section; 113. Arc-shaped section; 114. Trapezoidal block; 115. Notch; 2. Traction mechanism; 21. Traction component; 211. Roller; 212. Sliding sleeve; 213. Elastic component; 214. Abutment rod; 22. Drive assembly; 221. First power source; 222. Rotating shaft; 223. Reel assembly; 2231. First reel; 2 232. Second reel, 224. Traction rope, 2241. First rope, 2242. Second rope, 3. Fire extinguishing system, 31. Fire blanket, 311. Flexible counterweight, 32. Storage mechanism, 321. Box, 322. Mounting plate, 323. Second power source, 324. Take-up roller, 325. Guide plate, 3251. Arc block, 3252. Organizing area, 3253. Storage area, 4. Intelligent control system, 5. Parking space. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0022] It should be noted that, unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0023] To address the issue of rapid response in the early stages of vehicle fires, this invention presents a mechanical, unmanned parking garage fire extinguishing device. This device can accurately locate the fire point and implement targeted fire extinguishing, thereby improving fire extinguishing efficiency, effectively solving the problem of rapid response in the early stages of vehicle fires, and reducing unnecessary economic losses caused by the large-scale release of extinguishing agents. Example 1

[0024] like Figure 1 As shown, this embodiment provides a fire extinguishing device for a mechanical unmanned parking garage, including a track system 1, a traction mechanism 2, a fire extinguishing system 3, and an intelligent control system 4.

[0025] like Figure 1-2As shown, the track system 1 includes at least two guide rails 11, which are symmetrically arranged on both sides of the length direction of the parking space 5. The two guide rails 11 are fixedly connected by a bracket 6. Each guide rail 11 includes a horizontal section 112 and a vertical section 111, which are in an inverted L shape. The vertical section 111 and the horizontal section 112 are smoothly connected by an arc section 113, thereby forming a continuous path across the car in the parking space 5 in the vertical plane. The vertical section 111 is fixed to the ground on one side of the parking space 5.

[0026] The vertical section 111 of the guide rail 11 guides the fire blanket 31 to be smoothly and vertically lifted from the storage mechanism 32 on the side of the parking space 5 to the height of the vehicle's roof. The subsequent horizontal section 112 guides the fire blanket 31 to move horizontally, enabling it to move accurately to directly above the vehicle and unfold for coverage. This L-shaped composite track design cleverly utilizes the three-dimensional space on the side of the parking space 5, enabling the folding and quick unfolding of the fire blanket 31, while avoiding interference between the fire blanket 31 and the movement of automated equipment such as lifting and traversing devices in the mechanical garage.

[0027] like Figure 1 , Figure 3 , Figure 6 As shown, the traction mechanism 2 includes a traction member 21 and a drive assembly 22. The traction member 21 includes a roller 211, the diameters of the two ends of the roller 211 are smaller than the diameter of the middle part, and the two ends of the roller 211 are slidably connected to two guide rails 11 through a sliding connection assembly. The drive assembly 22 is located at the corresponding position of the guide rail 11 below the side of the parking space 5, and is used to drive the traction member 21 to move along the guide rail 11. The drive assembly 22 includes a traction rope 224 and a reel assembly 223. One end of the traction rope 224 is connected to the reel assembly 223, and the other end is connected to the roller 211.

[0028] like Figure 5 As shown, the sliding connection assembly includes a sliding sleeve 212 sleeved at both ends of the roller 211 and slidable along its axial direction. The sliding sleeve 212 is fixedly connected to the flexible counterweight 311. An elastic element 213 is provided between the roller 211 and the sliding sleeve 212. The elastic element 213 is sleeved at the end of the roller 211 and is located between the sliding sleeve 212 and the stepped end face on the roller 211. Its elastic force causes the sliding sleeve 212 to have a tendency to move outward from the end of the roller 211.

[0029] The two guide rails 11 have grooves on their opposite sides. The lower side of the horizontal section 112 of the guide rail 11 has a notch 115. The upper side of the guide rail 11 has a trapezoidal block 114 at the position corresponding to the notch 115. The long side of the trapezoidal block 114 is fixedly connected to the upper side of the guide rail. The sliding sleeve 212 is fixed with an abutting rod 214 that abuts against the groove of the guide rail 11. When the traction member 21 moves to the vicinity of the notch 115, the abutting rod 214 contacts the inclined surface of the trapezoidal block 114 and is pressed down, so that the sliding sleeve 212 overcomes the elastic force of the elastic member 213 and slides inward along the axial direction of the roller 211, thereby driving the flexible counterweight 311 to move to the position of the notch 115, and finally causing it to break away from the constraint of the guide rail 11 at the notch 115.

[0030] The above method provides a preset release channel for the flexible counterweight 311, enabling the fire blanket 31 to break free from the track constraint at the end of its deployment and fall freely under gravity. This allows it to more thoroughly wrap around the sides and bottom of the vehicle, forming a better sealed space and thus improving the efficiency of fire extinguishing. Furthermore, the entire release process does not require additional sensors or electronic control programs; it is achieved through precise mechanical structure linkage, making the action more reliable.

[0031] like Figure 2 , Figure 3 , Figure 7 As shown, the drive assembly also includes a first power source 221 and a rotating shaft 222 driven by the first power source 221. The length of the rotating shaft 222 is equal to the distance between the two guide rails 11. There are two reel assemblies 223 and two traction ropes 224. The reel assemblies 223 are fixed to both ends of the rotating shaft 222, and the traction ropes 224 are wound around the reel assemblies 223.

[0032] The reel assembly 223 includes a first reel 2231 and a second reel 2232 coaxially fixedly connected. The traction rope 224 includes a first rope 2241 and a second rope 2242. One end of the first rope 2241 is fixed and wound around the first reel 2231, and the other end is fixed to the roller 211. One end of the second rope 2242 is fixed and wound around the second reel 2232, and the other end is fixed to the roller 211. The first rope 2241 and the second rope 2242 together form a closed traction motion system.

[0033] The first power source 221 is a motor, which drives the reel assembly 223 to rotate in both directions, causing the first reel 2231 and the second reel 2232 to synchronously reel in and out, thereby causing the roller 211 to move bidirectionally along the continuous path defined by the guide rail. Specifically, when the first power source 221 rotates in the forward direction, the first reel 2231 reels the first rope 2241, and the second reel 2232 releases the second rope 2242, thereby pulling the roller 211 along the guide rail 11 to the side away from the storage mechanism 32; when the first power source 221 rotates in the reverse direction, the first reel 2231 releases the first rope 2241, and the second reel 2232 reels the second rope 2242, driving the roller 211 along the guide rail 11 to the side closer to the storage mechanism 32, thereby realizing the automatic reciprocating motion of the roller 211 along the guide rail 11 and the function of resetting the initial position.

[0034] The above-mentioned transmission method is not only stable and reliable, but also allows for precise control of the movement of the traction component 21 by controlling the number of rotations or angle of the first power source 221, thereby precisely controlling the unfolded length and final coverage position of the fire blanket 31 and ensuring the accuracy of the fire extinguishing action.

[0035] like Figure 1 , Figure 3 , Figure 6 As shown, the fire extinguishing system 3 includes an deployable fire blanket 31 and a storage mechanism 32. One side of the fire blanket 31 is fixedly connected to the roller 211, and the opposite side is initially stored in the storage mechanism 32. Flexible counterweights 311 are fixedly connected to both sides of the fire blanket 31 along its width direction, so that the fire blanket 31 remains in a drooping state during movement. The flexible counterweights 311 are fixedly connected to the sliding connection components at both ends of the roller 211. The storage mechanism 32 is arranged on one side along the width direction of the parking space 5 and is fixedly installed on the outside of the track adjacent to the vertical section 111. Its length is equal to the distance between the two guide rails 11. In this embodiment, the storage mechanism 32 is a box 321 with one open side, and the fire blanket 31 is folded and housed in the box 321.

[0036] The fire blanket 31 is made of multi-layer composite fire-resistant material, possessing flame-retardant, high-temperature resistant, and certain toughness properties. The roller 211 provides the main rigid traction force for the fire blanket 31, ensuring its main body can be unfolded smoothly. The flexible counterweights 311 connected to both sides of the fire blanket 31 hang naturally under gravity, allowing the fire blanket 31 to better conform to the contours of the vehicle's sides during unfolding. This ensures the fire blanket 31 can effectively cover key areas such as doors and wheels, eliminating blind spots on the sides of the vehicle and ensuring the fire blanket 31 can completely isolate the flame from the air, improving the reliability and effectiveness of fire suppression. The flexible counterweight 311 is a metal chain sewn onto the edge of the fire blanket 31. The housing 321 effectively protects the fire blanket 31 from environmental factors such as dust and moisture, extending its service life and facilitating maintenance and replacement.

[0037] like Figure 1-2 As shown, the intelligent control system 4 includes monitoring sensors and a control unit for monitoring fire conditions. The control unit is communicatively connected to the monitoring sensors and the drive assembly 22. The monitoring sensors include a camera for acquiring video images of the parking space 5, a smoke sensor for detecting smoke concentration, and a temperature sensor for monitoring ambient temperature. Its working principle is as follows: First, the camera continuously collects video image data of parking space 5, the smoke sensor detects the smoke concentration in the area in real time, and the temperature sensor monitors the ambient temperature in real time. Then, the monitoring sensors transmit the collected video images, smoke concentration signals and temperature signals to the control unit. The control unit has multiple preset alarm thresholds. When the control unit finds that any sensor data exceeds its corresponding threshold, or identifies an open flame through image analysis, it determines that a fire has occurred or there is an extremely high risk, triggers an instruction and sends it to the drive component 22. Example 2

[0038] In order to achieve automatic retrieval of the fire blanket 31, this embodiment improves the design of the guide rail 11 and the storage mechanism 32 based on embodiment 1.

[0039] like Figure 4 , Figure 6 , Figure 8 As shown, each guide rail 11 includes two vertical sections 111 and one horizontal section 112 fixed on both sides of the parking space. The horizontal section 112 is connected to the top of the two vertical sections 111 respectively through an arc section 113, thereby forming a continuous path across the parking space in the vertical plane, and the whole is n-shaped. The storage mechanism 32 includes a mounting plate 322 fixed on the guide rail 11, a take-up roller 324 rotatably connected to the mounting plate 322, and a second power source 323 that drives the take-up roller 324 to rotate. One end of the fire blanket 31 is fixed to the take-up roller 324.

[0040] Two parallel guide plates 325 are fixedly installed on the mounting plate 322. Arc-shaped blocks 3251 are fixedly connected to the opposite inner surfaces of the two guide plates 325 at both ends. The distance between the two opposite arc-shaped blocks 3251 is smaller than the distance between the two guide plates 325, thereby dividing the space between the two guide plates 325 into a sorting area 3252 at both ends and a storage area 3253 in the middle.

[0041] After the intelligent control system 4 confirms that the fire has been extinguished, it will drive the take-up roller 324 to rotate in the opposite direction by controlling the second power source 323, so as to retrieve the fire blanket 31 from above the parking space 5. With the assistance of the guide plate 325 and the arc block 3251, the fire blanket 31 will be wound around the take-up roller 324. Specifically, when the fire blanket 31 is pulled toward the storage mechanism 32, the flexible counterweights 311 connected to both sides will first enter the sorting area 3252 at both ends of the guide plate 325. Under the guidance of the inclined surface of the arc block 3251, the flexible counterweights 311 are gently pushed open and gathered to both sides, so that they are separated from the main body of the fire blanket 31 which is being folded or rolled, and are restricted to a predetermined orderly position. The aforementioned components effectively prevent the flexible counterweight 311 from becoming entangled, knotted, or squeezed with the soft fire blanket 31 in a confined space, ensuring that it can immediately detach from its regular position when the next fire extinguishing mission is launched, and quickly and smoothly drop into place by gravity. This ensures the reliability of the fire extinguishing system 3 for repeated use, greatly improves the repeated fire extinguishing capability, automation level, and overall response efficiency of the fire extinguishing system 3, and reduces the need for manual maintenance.

[0042] like Figure 9 As shown, the fire extinguishing method of this device includes the following steps: Step 1: Monitor the status of parking space 5 using monitoring sensors. When the monitoring sensors detect a fire in parking space 5, they send a signal to the control unit. Step 2: The control unit activates the drive assembly 22, which pulls the traction member 21 upward along the vertical section 111 of the guide rail 11 via the traction rope 224, pulling the fire blanket 31 out of the storage mechanism 32; Step 3: When the traction member 21 enters the horizontal section 112 of the guide rail 11 and moves to the notch 115, the abutment rod 214 acts on the trapezoidal block 114, causing the flexible counterweight 311 to detach from the constraint of the guide rail 11 and hang freely; Step 4: The traction member 21 continues to pull the fire blanket 31 upward. 1. Move to the end of the guide rail 11. The fire blanket 31 fully covers the vehicle under its own weight and the downward pull of the flexible counterweight 311, completing the fire extinguishing operation. Step 5. After the fire extinguishing operation is completed, the control unit controls the first power source 221 of the drive assembly 22 to reverse, and pulls the traction member 21 back along the guide rail 11 through the traction rope 224. At the same time, the control unit controls the second power source 323 to start, driving the winding roller 324 to rotate, and actively winding and retracting the fire blanket 31 into the storage mechanism 32.

[0043] The steps for real-time detection by temperature and open flame monitoring sensors are as follows: Step S1: Initial Inspection and Baseline Establishment upon Vehicle Entry. When a vehicle enters the parking lot, the license plate recognition system first collects and records its license plate information. Simultaneously, a first infrared thermal imager located at the entrance channel scans the entire vehicle, detecting its surface temperature distribution (typically 0-650℃) and generating initial temperature data. Subsequently, the system uniquely binds this initial temperature data to the license plate information, establishing it as the temperature baseline file for the vehicle upon entry.

[0044] Step S2: Dynamic monitoring during the handling process. As the vehicle is moved to the target parking space by the elevator or railcar, the system initiates continuous monitoring, primarily including video surveillance and dynamic temperature sampling. Video surveillance uses cameras installed along the handling path to monitor the vehicle in real time, aiming to visually detect visible fire features such as open flames and smoke. Dynamic temperature sampling involves installing a second infrared thermal imager on the handling equipment (such as the railcar) to dynamically scan the vehicle's temperature during the handling process, acquiring real-time temperature data along the way.

[0045] Step S3: Temperature Status Analysis and Preliminary Judgment. The system compares and analyzes the real-time temperature data obtained in Step S2 with the initial temperature baseline established in Step S1, and performs a graded judgment based on the comparison results. If the real-time temperature is lower than or equal to the baseline temperature, the system determines it to be in a normal state. At the same time, considering that the vehicle may have local high temperatures in the engine compartment and other parts due to the engine just being turned off, for vehicles with stable temperatures, the system will automatically retrieve video monitoring footage for auxiliary verification. Only after confirming that there are no visible abnormalities will it be marked as safe. If the real-time temperature is significantly higher than the baseline temperature in State B, the system will immediately determine it to be in an abnormal state. This judgment will trigger a preliminary warning and increase the monitoring level for the vehicle.

[0046] Step S4: Continuous monitoring and alarm after parking. Once the vehicle is moved and parked in the designated parking space, the system logically binds the vehicle's license plate information to the third fixed infrared thermal imager pre-installed in the parking space, forming a dedicated monitoring relationship of "one vehicle, one imager". During parking, the infrared thermal imager in parking space 5 continuously monitors the vehicle's temperature 24 hours a day, continuously recording and generating temperature change curves. At the same time, the monitoring system analyzes the temperature change trend in real time. Once an abnormal temperature rise that meets the characteristics of a fire is detected (such as detecting an open flame, detecting a set temperature, or calculating a temperature rise that reaches a set value), the system will no longer rely on video confirmation and will directly trigger the highest level "vehicle fire alarm". It will immediately send the license plate number + parking space number and temperature data of the fire alarm location to the control unit of the fire extinguishing device and initiate a rapid fire extinguishing process. Video monitoring at this stage is used as an auxiliary means, mainly to observe the development of the flames and provide visual information for possible subsequent manual intervention or fire rescue.

[0047] In summary, the collaborative operation of the track system 1, traction mechanism 2, fire extinguishing system 3, and intelligent control system 4 constitutes a complete integrated intelligent fire protection closed loop of "perception-decision-execution". Through the fusion application of at least two of the following: cameras, smoke sensors, and temperature sensors, the system can cross-verify from multiple physical dimensions such as visual images, smoke concentration, and temperature rise rate, achieving accurate identification and composite judgment of early fire characteristics. This significantly improves the accuracy and timeliness of fire detection and effectively reduces the false alarm rate that may be caused by a single sensor. Furthermore, when a fire occurs, the fire blanket 31 can quickly and accurately cover the ignition point, rapidly suffocating the flames through physical isolation. This avoids water damage caused by traditional sprinkler systems and secondary damage to non-burning vehicles, ensuring that the entire fire extinguishing device automatically activates only under confirmed real fire conditions. This guarantees response speed while avoiding resource waste and equipment interference caused by malfunctions.

[0048] Finally, it should be noted that any parts of this invention not described in detail are prior art. Those skilled in the art will understand that the above descriptions are merely preferred embodiments of the invention and are not intended to limit the invention. Although the invention has been described in detail with reference to the foregoing examples, those skilled in the art can still modify the technical solutions described in the foregoing examples or make equivalent substitutions for some of the technical features. All modifications and equivalent substitutions made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A fire extinguishing device for a mechanical unmanned parking garage, characterized in that, include: The track system (1) includes at least two guide rails (11), which are symmetrically arranged on both sides of the length direction of the parking space (5). The two guide rails (11) are fixedly connected by a bracket (6). Each guide rail (11) includes a horizontal segment (112) and at least one vertical segment (111). The vertical segment (111) and the horizontal segment (112) are smoothly connected by an arc segment (113), thereby forming a continuous path across the car in the parking space in the vertical plane. The traction mechanism (2) includes a traction member (21) and a drive assembly (22). 1) Includes a roller (211), the diameters of the two ends of the roller (211) are smaller than the diameter of the middle, and the two ends of the roller (211) are slidably connected to two guide rails (11) through a sliding connection assembly; the drive assembly (22) is set at the corresponding position of the guide rail (11) below the side of the parking space (5) and is used to drive the traction member (21) to move along the guide rail (11); the drive assembly (22) includes a traction rope (224) and a reel assembly (223), one end of the traction rope (224) is connected to the reel assembly (223), and the other end is connected to the roller (211); The fire extinguishing system (3) includes an deployable fire blanket (31) and a storage mechanism (32). One side of the fire blanket (31) is fixedly connected to the roller (211), and the opposite side is initially stored in the storage mechanism (32). Flexible counterweights (311) are fixedly connected to both sides of the fire blanket (31) along its width direction. The flexible counterweights (311) are fixedly connected to the sliding connection components at both ends of the roller (211). The storage mechanism (32) is located on one side of the parking space (5) along its width direction and is fixedly installed on the outside of the track of the adjacent vertical section (111). Its length is equal to the distance between the two guide rails (11). The intelligent control system (4) includes a monitoring sensor and a control unit for monitoring the fire. The control unit is communicatively connected to the monitoring sensor and the drive assembly (22).

2. The fire extinguishing device for a mechanical unmanned parking garage according to claim 1, characterized in that: The sliding connection assembly includes a sliding sleeve (212) sleeved on both ends of the roller (211) and slidable along its axial direction. The sliding sleeve (212) is fixedly connected to the flexible counterweight (311). An elastic element (213) is provided between the roller (211) and the sliding sleeve (212). The elastic element (213) is sleeved on the end of the roller (211) and located between the stepped end face of the sliding sleeve (212) and the roller (211). Its elastic force causes the sliding sleeve (212) to have a tendency to move outward from the end of the roller (211).

3. The fire extinguishing device for a mechanical unmanned parking garage according to claim 2, characterized in that: The two guide rails (11) have grooves on their opposite sides. The lower side rail wall of the top horizontal section (112) of the guide rail (11) has a notch (115). The upper side rail wall has a trapezoidal block (114) at the position corresponding to the notch (115). The long side of the trapezoidal block (114) is fixedly connected to the upper side rail wall. The sliding sleeve (212) has an abutting rod (214) that abuts against the groove of the guide rail (11). When the traction member (21) moves to the vicinity of the notch (115), the abutting rod (214) contacts the inclined surface of the trapezoidal block (114) and is pressed down, so that the sliding sleeve (212) overcomes the elastic force of the elastic member (213) and slides inward along the roller (211) axis, thereby driving the flexible counterweight (311) to move to the position of the notch (115) and finally making it break away from the constraint of the guide rail (11) from the notch (115).

4. The fire extinguishing device for a mechanical unmanned parking garage according to claim 1, characterized in that: The guide rail (11) includes a vertical section (111) and a horizontal section (112), and is in the shape of an inverted L. The storage mechanism (32) is a box (321) with one side open, and the fire blanket (31) is folded and housed in the box (321).

5. The fire extinguishing device for a mechanical unmanned parking garage according to claim 1, characterized in that: Each guide rail (11) includes two vertical sections (111) and one horizontal section (112) fixed on both sides of the parking space. The horizontal section (112) is connected to the top of the two vertical sections (111) through an arc section (113), forming an n-shape. The storage mechanism (32) includes a mounting plate (322) fixed on the vertical section (111) of the guide rail (11), a take-up roller (324) rotatably connected to the mounting plate (322), and a second power source (323) that drives the take-up roller (324) to rotate. One end of the fire blanket (31) is fixed to the take-up roller (324).

6. The fire extinguishing device for a mechanical unmanned parking garage according to claim 5, characterized in that: Two parallel guide plates (325) are fixedly installed on the mounting plate (322). Arc-shaped blocks (3251) are fixedly connected to the opposite inner surfaces of the two guide plates (325) at both ends. The distance between the two opposite arc-shaped blocks (3251) is smaller than the distance between the two guide plates (325), thereby dividing the space between the two guide plates into a sorting area (3252) at both ends and a storage area (3253) in the middle.

7. The fire extinguishing device for a mechanical unmanned parking garage according to claim 1, characterized in that: The drive assembly further includes a first power source (221) and a rotating shaft (222) driven by the first power source (221). The length of the rotating shaft (222) is equal to the distance between the two guide rails (11). There are two reel assemblies (223) and two traction ropes (224). The reel assembly (223) is fixed at both ends of the rotating shaft (222), and the traction ropes (224) are wound around the reel assembly (223).

8. The fire extinguishing device for a mechanical unmanned parking garage according to claim 7, characterized in that: The reel assembly (223) includes a first reel (2231) and a second reel (2232) coaxially fixedly connected. The traction rope (224) includes a first rope (2241) and a second rope (2242). One end of the first rope (2241) is fixed and wound around the first reel (2231), and the other end is fixed to the roller (211). One end of the second rope (2242) is fixed and wound around the second reel (2232), and the other end is fixed to the roller (211). The first power source (221) is a motor, which drives the reel assembly (223) to rotate forward and backward, so that the first reel (2231) and the second reel (2232) can be wound and unwound synchronously, thereby causing the roller (211) to move bidirectionally along the continuous path defined by the guide rail.

9. A fire extinguishing device for a mechanical unmanned parking garage according to claim 1, characterized in that: The monitoring sensors include a camera for acquiring video images of the parking space (5), a smoke sensor for detecting smoke concentration, and a temperature sensor for monitoring ambient temperature.

10. A fire extinguishing method for a mechanical unmanned parking garage, employing a fire extinguishing device for a mechanical unmanned parking garage as described in any one of claims 5-9, characterized in that, Includes the following steps: Step 1: Monitor the status of parking space (5) through monitoring sensors. When the monitoring sensors detect a fire in parking space (5), they send a signal to the control unit. Step 2: The control unit starts the drive assembly (22), and pulls the traction member (21) along the vertical section (111) of the guide rail (11) by the traction rope (224), pulling the fire blanket (31) out of the storage mechanism (32); Step 3: When the traction member (21) enters the horizontal section (112) of the guide rail (11) and moves to the position of the notch (115), the abutment rod (214) acts with the trapezoidal block (114), causing the flexible counterweight (311) to break free from the constraint of the guide rail (11) and hang freely; Step 4: The traction member (21) continues to pull the fire blanket (31) along the vertical section (111) of the guide rail (111), pulling the fire blanket (31) out of the storage mechanism (32); The fire blanket (31) moves to the end of the guide rail (11), and the fire blanket (31) fully covers the vehicle under its own weight and the downward pull of the flexible counterweight (311) to complete the fire extinguishing operation; Step 5: After the fire extinguishing operation is completed, the control unit controls the first power source (221) of the drive assembly (22) to reverse, and pulls the traction member (21) back along the guide rail (11) through the traction rope (224); at the same time, the control unit controls the second power source (323) to start, drives the winding roller (324) to rotate, and actively winds the fire blanket (31) back into the storage mechanism (32).

Images