Folding fire extinguishing busbar

Abstract

The utility model provides a folding fire extinguishing busbar and a fire extinguishing device thereof. The folding fire extinguishing busbar consists of a left longitudinal pipe, a right longitudinal pipe, a front transverse pipe, a rear transverse pipe, a water mist nozzle and a stable and balanced guide wheel component, a plurality of sets of folding fire extinguishing busbars can be combined for use, and a single set of folding fire extinguishing busbars can be flexibly used in a complete unfolding state, a half unfolding state and a local unfolding state, so that fire outbreak parts of underbody batteries of various large, medium, small and miniature electric automobiles are fully covered, cooled and extinguished, and water for fire fighting and extinguishment is saved to the greatest extent; the portable electric vehicle fire extinguishing device has the advantages of being easy to fold and operate, portable and capable of reducing occupation of rescuers and physical exhaustion of the rescuers, can promote fire rescue teams and miniature fire stations to accelerate construction of a novel electric vehicle fire extinguishing equipment system, and improves fire extinguishing and rescue combat safety. The industrial market demand potential is huge, the innovative development of the emergency safety industry can be promoted, and the method has important significance on public fire safety.

Description

Technical Field

[0001] The utility model relates to the field of fire fighting for electric vehicle fires, and in particular to a foldable fire extinguishing busbar. Background Art

[0002] The main combustible material in electric vehicle fires is its power lithium battery, which is often composed of tens of thousands of battery cells. When a fire occurs, the combustible material is 1+N battery cells. When one battery cell catches fire, it explodes and burns, and multiple battery cells will be subjected to the impact of heat conduction, explosion and explosion, which will continuously and rapidly produce a chain reaction of combustion and explosion and explosion. After the electric vehicle lithium battery catches fire, it burns rapidly and violently, the combustion chain reaction is fast, the combustion temperature is high, the combustion is jet-like, the burning time is long, it is easy to reignite, explode and explode, and it is easy to explode and explode multiple times. During the combustion, toxic gases and high voltage are produced. After the fire, there is a great fire hazard to people, vehicles, structures and facilities in the parking area. In non-confined spaces, at present, the only safest and effective fire extinguishing measure is to use a large amount of cooling water to cool and extinguish the fire. After the electric vehicle lithium battery catches fire, the burning time can be as long as several hours or even longer. The water consumption of fire fighting is large, and most electric vehicle lithium batteries are installed at the bottom of the vehicle. The water spraying angle of the fire hose is difficult to cover the fire part of the lithium battery at the bottom of the electric vehicle. Therefore, it is urgent to innovate a scientific, efficient, safe, water-saving and portable electric vehicle fire fighting equipment and fire extinguishing device to solve the electric vehicle fire fighting, which is recognized as the latest fire fighting problem in domestic and foreign firefighting.

[0003] Fire science knows that there are four essential conditions for combustion: a certain fuel concentration, a certain amount of oxygen (combustible material), a certain ignition energy, and an uninhibited chain reaction. Electric vehicle lithium battery combustion fully meets these four conditions: the vast majority occur in oxygen-rich, unconfined spaces, with an uninhibited chain reaction, continuous heat release, and the generation of combustible gases. The combustion itself generates oxygen (lithium reduces carbon dioxide during combustion, subsequently producing carbon, oxygen, and lithium oxide). Therefore, developing electric vehicle firefighting equipment and extinguishing devices that reduce, inhibit, or disrupt these four conditions effectively addresses firefighting challenges and meets the practical needs of extinguishing new types of electric vehicle fires. Therefore, we propose a foldable fire extinguishing busbar. Utility Model Content

[0004] The purpose of the present invention is to address the problems raised by the existing background technology. In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a foldable fire extinguishing busbar, comprising a left longitudinal pipe and a right longitudinal pipe, wherein the front sides of the left longitudinal pipe and the right longitudinal pipe are connected by a front transverse pipe, and the rear sides of the left longitudinal pipe and the right longitudinal pipe are connected by a rear transverse pipe, and the utility model is characterized in that the left longitudinal pipe and the right longitudinal pipe, as well as the front transverse pipe and the rear transverse pipe, are all provided with water mist nozzles, and the left and right sides of the front transverse pipe and the rear transverse pipe are provided with stabilizing guide wheel components, the left longitudinal pipe is formed by connecting the left front longitudinal pipe, the left middle longitudinal pipe and the left rear longitudinal pipe; and the right longitudinal pipe is formed by connecting the right front longitudinal pipe, the right middle longitudinal pipe and the right rear longitudinal pipe.

[0005] As the preferred technical solution of the present invention, the front end of the left front longitudinal tube is connected to a male head of a card-type interface, the rear end is connected to an inner-buckle self-locking interface, and the tube body is connected to a water mist nozzle; the two ends of the left middle longitudinal tube are connected to an inner-buckle self-locking interface, and the tube body is connected to a water mist nozzle; the two ends of the left rear longitudinal tube are connected to an inner-buckle self-locking interface, and the tube body is connected to a water mist nozzle.

[0006] As the preferred technical solution of the present invention, the front end of the right front longitudinal tube is connected to a male head of a card-type interface, the rear end is connected to an inner-buckle self-locking interface, and the tube body is connected to a water mist nozzle; the two ends of the right middle longitudinal tube are connected to an inner-buckle self-locking interface, and the tube body is connected to a water mist nozzle; the two ends of the right rear longitudinal tube are connected to an inner-buckle self-locking interface, and the tube body is connected to a water mist nozzle.

[0007] As the preferred technical solution of the present invention, the left and right ends of the front transverse tube are respectively connected with a card-type interface female head, the middle front side is connected with a card-type interface female head water inlet, the tube body is connected with a water mist nozzle, an insulating rod hanging hole and a balancing guide wheel component; the left and right ends of the rear transverse tube are respectively connected with an inner buckle self-locking interface, and the tube body is connected with a water mist nozzle and a balancing guide wheel component.

[0008] As the preferred technical solution of the present invention, the left front longitudinal tube and the left middle longitudinal tube are quickly connected and locked or unlocked through the inward-buckled self-locking interface at the rear end of the left front longitudinal tube and the inward-buckled self-locking interface at the front end of the left middle longitudinal tube; the left middle longitudinal tube and the left rear longitudinal tube are quickly connected and locked or unlocked through the inward-buckled self-locking interface at the rear end of the left middle longitudinal tube and the inward-buckled self-locking interface at the front end of the left rear longitudinal tube; the left front longitudinal tube, the left middle longitudinal tube and the left rear longitudinal tube are quickly connected and locked together to complete the rapid and complete deployment of the left longitudinal tube; the left front longitudinal tube and the left middle longitudinal tube are quickly connected and locked together to complete the semi-deployment of the left longitudinal tube; the left front longitudinal tube, the left middle longitudinal tube and the left rear longitudinal tube are respectively unlocked and released from the quick-connected and locked state to complete the folding of the left longitudinal tube.

[0009] As the preferred technical solution of the present invention, the right front longitudinal tube and the right middle longitudinal tube are quickly connected and locked or unlocked through the inner buckle self-locking interface at the rear end of the right front longitudinal tube and the inner buckle self-locking interface at the front end of the right middle longitudinal tube; the right middle longitudinal tube and the right rear longitudinal tube are quickly connected and locked or unlocked through the inner buckle self-locking interface at the rear end of the right middle longitudinal tube and the inner buckle self-locking interface at the front end of the right rear longitudinal tube; the right front longitudinal tube, the right middle longitudinal tube and the right rear longitudinal tube are quickly connected and locked together to unfold the right longitudinal tube; the right front longitudinal tube and the right middle longitudinal tube are connected and locked together to semi-expand the right longitudinal tube; the right front longitudinal tube, the right middle longitudinal tube and the right rear longitudinal tube are respectively unlocked and released from the quick connection and locking state to fold the right longitudinal tube.

[0010] A fire extinguishing device for a foldable fire extinguishing busbar comprises the following steps:

[0011] Step 1: Use a fully deployed, half-deployed, or partially deployed foldable fire extinguishing busbar to spray fine water mist for efficient cooling and fire extinguishing. The main combustible material in electric vehicle fires is lithium batteries. When lithium batteries catch fire in non-confined spaces, a large amount of cooling water is required for cooling and fire extinguishing.

[0012] Step 2: Discharge the fully unfolded, half-expanded or partially unfolded foldable fire extinguishing manifold to the ground near the fire extinguishing attack point of the electric vehicle on fire, and point the water inlet of the female end of the card interface outward (that is, towards the opposite direction of the fire point). Then connect the fire hose to the water inlet of the female end of the card interface, and supply water from the foldable fire extinguishing manifold. When the water supply pressure gradually increases until the fire hose is tightened due to the increase in water pressure, the firefighters should wear high-grade insulating gloves, insulating boots, and arrange electrical insulating equipment, and ensure that the electric vehicles and charging facilities are fully After all power is cut off, grab the fire hose and push the foldable fire extinguishing bus horizontally to the bottom of the electric vehicle where the battery fire started. The foldable fire extinguishing bus will then spray a uniform, dense mist jet covering the fire area to cool down and extinguish the fire. When encountering unpaved roads, quickly connect the multifunctional telescopic insulating rod equipped by the fire rescue team to the insulating rod hanging hole, and use the insulating rod to help push the foldable fire extinguishing bus to the bottom of the electric vehicle where the battery fire started to cool down and extinguish the fire.

[0013] Step 3: After the fire is extinguished, continue to cool down efficiently for a period of time; electric vehicle fires take a long time to extinguish and are prone to explosions and deflagrations. When firefighters use the foldable fire extinguishing bus to spray water to cool down and extinguish the fire, they evacuate to a safe area outside the range of car batteries, tire burning, explosions and deflagrations, and electric shock injuries to wait for the fire to be extinguished.

[0014] As an optimal technical solution of the present invention, the inward-facing self-locking interfaces of the fully expanded left and right longitudinal tubes are quickly connected and locked with the inward-facing self-locking interfaces at the left and right ends of the rear transverse tube, and then the male heads of the card interfaces of the fully expanded left and right longitudinal tubes are quickly connected and locked with the female heads of the card interfaces at the left and right ends of the front transverse tube, thereby completing the full expansion of the foldable fire extinguishing bus, which is used for cooling and extinguishing large-area fire areas at the bottom battery of electric vehicles.

[0015] As an optimal technical solution of the present invention, the rear end inward-facing self-locking interfaces of the left front longitudinal tube and the right front longitudinal tube are quickly connected and locked with the inward-facing self-locking interfaces at the left and right ends of the rear transverse tube, and then the male heads of the card interfaces of the left front longitudinal tube and the right front longitudinal tube are quickly connected and locked with the female heads of the card interfaces at the left and right ends of the front transverse tube, thereby completing the partial deployment of the foldable fire extinguishing bus, which is used for cooling and extinguishing the local fire site of the battery at the bottom of an electric vehicle fire.

[0016] As the preferred technical solution of the present invention, after the male head and the female head of the card interface are unlocked and released respectively, each inner buckle self-locking interface is unlocked and released respectively to complete the rapid folding of the foldable fire extinguishing bus. The folded foldable fire extinguishing bus is placed in the equipment box of the fire rescue vehicle and carried on the vehicle; multiple sets of foldable fire extinguishing buses can be used in combination, or a single set can be used in a fully expanded state, a semi-expanded state and a partially expanded state.

[0017] Compared with existing electric vehicle fire extinguishing devices and fire extinguishing technical equipment, the foldable fire extinguishing bus of the utility model can have but is not limited to the following beneficial effects: Compared with existing electric vehicle fire extinguishing devices and fire extinguishing technical equipment, the foldable fire extinguishing bus of the utility model is novel, creative, practical and feasible, filling the gap in domestic and foreign electric vehicle fire extinguishing devices and fire extinguishing devices, and is a scientific innovation in fire fighting and rescue theory and technical equipment.

[0018] The foldable fire extinguishing bus of the utility model has the advantages of being easy to fold, easy to operate, portable, space-saving, water-saving, and saving firefighters' physical and manpower. It can promote fire rescue teams and unit micro fire stations to accelerate the construction of a new fire extinguishing equipment system for electric vehicle fires, improve the safety of fire fighting and rescue operations, and the ability to rescue and win scientifically; the industry market demand potential is huge, and each fire rescue team, each micro fire station, and each social fire safety main responsible unit can be equipped and reserved for electric vehicle fire rescue, self-rescue, and rescue by others. It has broad development prospects, can promote the innovative development of the emergency safety industry, and is of great significance to public fire safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The figure shows the front view of the structure of the foldable fire extinguishing busbar after it is fully unfolded;

[0020] Figure 2 The figure shows the front view of the structure of the foldable fire extinguishing busbar after it is half unfolded;

[0021] Figure 3 The figure shows the front view of the structure of the foldable fire extinguishing busbar after partial unfolding;

[0022] Figure 4 A schematic diagram of a fire extinguishing device is shown;

[0023] Figure 5 Shows the front view of the foldable fire extinguishing busbar after folding;

[0024] Figure 6 The figure shows the front view of the structure after the left longitudinal tube is fully deployed;

[0025] Figure 7 The figure shows the front view of the structure after the right longitudinal tube is fully deployed;

[0026] Figure 8 The front view of the structure after the front cross tube is fully deployed is shown;

[0027] Figure 9 The figure shows the front view of the structure after the rear cross tube is fully unfolded. DETAILED DESCRIPTION

[0028] To make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them.

[0029] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the claimed invention, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments are combined with each other. It should be noted that similar numbers and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0030] Example 1: This example illustrates the foldable fire extinguishing busbar and its folding and unfolding device of the present invention. The foldable fire extinguishing busbar of the present invention meets the practical needs of electric vehicle fire fighting, overcoming the difficulties in electric vehicle fire fighting. It can be quickly folded and carried during combat readiness, and can be quickly unfolded during combat to facilitate rescue.

[0031] like Figure 1As shown, the foldable fire extinguishing busbar 1 of the present invention comprises: a left longitudinal pipe 3, a right longitudinal pipe 4, a front transverse pipe 5, a rear transverse pipe 6, a water mist nozzle 7, and a balancing guide wheel component 8;

[0032] like Figure 6 As shown, the left longitudinal tube 3 is composed of a left front longitudinal tube 9, a left middle longitudinal tube 10, and a left rear longitudinal tube 11; Figure 7 As shown, the right longitudinal tube 4 is composed of a right front longitudinal tube 12, a right middle longitudinal tube 13, and a right rear longitudinal tube 14;

[0033] like Figure 6 As shown, the front end of the left front longitudinal tube 9 is connected to a card-type interface male connector 15, the rear end is connected to an inner buckle self-locking interface 16, and the tube body is connected to the water mist nozzle 7; the two ends of the left middle longitudinal tube 10 are connected to the inner buckle self-locking interface 16, and the tube body is connected to the water mist nozzle 7; the two ends of the left rear longitudinal tube 11 are connected to the inner buckle self-locking interface 16, and the tube body is connected to the water mist nozzle 7;

[0034] like Figure 7 As shown, the front end of the right front longitudinal tube 12 is connected to a card-type interface male connector 15, the rear end is connected to an inner buckle self-locking interface 16, and the tube body is connected to the water mist nozzle 7; the two ends of the right middle longitudinal tube 13 are connected to the inner buckle self-locking interface 16, and the tube body is connected to the water mist nozzle 7; the two ends of the right rear longitudinal tube 14 are connected to the inner buckle self-locking interface 16, and the tube body is connected to the water mist nozzle 7;

[0035] like Figure 8 As shown, the left and right ends of the front cross pipe 5 are respectively connected to the card interface female connector 17, the middle front side is connected to the card interface female connector water inlet 18, the pipe body is connected to the water mist nozzle 7, the insulating rod hanging hole 19 and the balancing guide wheel component 8;

[0036] like Figure 9 As shown, the left and right ends of the rear transverse tube 6 are respectively connected to the inner buckle self-locking interface 16, and the tube body is connected to the water mist nozzle 7 and the balancing guide wheel component 8;

[0037] The left front longitudinal tube 9 and the left middle longitudinal tube 10 are quickly connected, locked, and unlocked through the inner buckle self-locking interface 16 at the rear end of the left front longitudinal tube 9 and the inner buckle self-locking interface 16 at the front end of the left middle longitudinal tube 10; the left middle longitudinal tube 10 and the left rear longitudinal tube 11 are quickly connected, locked, and unlocked through the inner buckle self-locking interface 16 at the rear end of the left middle longitudinal tube 10 and the inner buckle self-locking interface 16 at the front end of the left rear longitudinal tube 11; the left front longitudinal tube 9, the left middle longitudinal tube 10, and the left rear longitudinal tube 11 are quickly connected, locked, and unlocked; the left longitudinal tube 3 is quickly and fully deployed by quickly connecting and locking the left front longitudinal tube 9, the left middle longitudinal tube 10, and the left rear longitudinal tube 11; the left longitudinal tube 3 is quickly and fully deployed by quickly connecting and locking the left front longitudinal tube 9 and the left middle longitudinal tube 10; the left longitudinal tube 3 is quickly and semi-deployed by quickly connecting and locking the left front longitudinal tube 9 and the left middle longitudinal tube 10; the left front longitudinal tube 9, the left middle longitudinal tube 10, and the left rear longitudinal tube 11 are respectively unlocked and released from the quick connection and locking state to complete the quick folding of the left longitudinal tube 3;

[0038] The right front longitudinal tube 12 and the right middle longitudinal tube 13 are quickly connected, locked, and unlocked through the inner buckle self-locking interface 16 at the rear end of the right front longitudinal tube 12 and the inner buckle self-locking interface 16 at the front end of the right middle longitudinal tube 13; the right middle longitudinal tube 13 and the right rear longitudinal tube 14 are quickly connected, locked, and unlocked through the inner buckle self-locking interface 16 at the rear end of the right middle longitudinal tube 13 and the inner buckle self-locking interface 16 at the front end of the right rear longitudinal tube 14; the right front longitudinal tube 12, the right middle longitudinal tube 13, and the right rear longitudinal tube 14 are quickly connected, locked, and unlocked; the right longitudinal tube 4 is quickly fully deployed by quickly connecting and locking them together; the right front longitudinal tube 12 and the right middle longitudinal tube 13 are quickly half-deployed by quickly connecting and locking them together; the right front longitudinal tube 12, the right middle longitudinal tube 13, and the right rear longitudinal tube 14 are respectively unlocked and released from the quick connection and locking state to complete the rapid folding of the right longitudinal tube 4;

[0039] After quickly connecting and locking the inward-buckling self-locking interfaces 16 of the fully unfolded left longitudinal tube 3 and right longitudinal tube 4 with the inward-buckling self-locking interfaces 16 at the left and right ends of the rear transverse tube 6, respectively, the card interface male heads 15 of the fully unfolded left longitudinal tube 3 and right longitudinal tube 4 are quickly connected and locked with the card interface female heads 17 at the left and right ends of the front transverse tube 5 to complete the full unfolding of the foldable fire extinguishing bus 1, which is used for cooling and extinguishing a large area of ​​fire at the bottom battery of an electric vehicle.

[0040] After quickly connecting and locking the inward-buckling self-locking interfaces 16 of the semi-expanded left and right longitudinal tubes 3 and 4 with the inward-buckling self-locking interfaces 16 at the left and right ends of the rear transverse tube 6, respectively, the male ends 15 of the card interfaces of the semi-expanded left and right longitudinal tubes 3 and 4 are quickly connected and locked with the female ends 17 of the card interfaces at the left and right ends of the front transverse tube 5 to complete the semi-expanding of the foldable fire extinguishing bus 1, which is used for cooling and extinguishing a large area of ​​fire at the bottom battery of an electric vehicle.

[0041] After quickly connecting and locking the rear end inward-buckling self-locking interfaces 16 of the left front longitudinal tube 9 and the right front longitudinal tube 12 with the left and right end inward-buckling self-locking interfaces 16 of the rear transverse tube 6, respectively, the card interface male heads 15 of the left front longitudinal tube 9 and the right front longitudinal tube 12 are quickly connected and locked with the card interface female heads 17 of the left and right ends of the front transverse tube 5 to complete the partial deployment of the foldable fire extinguishing bus 1, which is used for cooling and extinguishing the local fire site of the battery at the bottom of the electric vehicle fire.

[0042] After unlocking and releasing each of the male and female card connectors 15 and 17, and then unlocking and releasing each of the inner self-locking connectors 16, the foldable fire extinguishing busbar 1 is quickly folded. The folded foldable fire extinguishing busbar 1 is more portable and saves storage space, so it can be easily placed in the equipment box of a fire rescue vehicle for carrying.

[0043] The foldable fire extinguishing busbar 1 can be used in combination with multiple units, or flexibly deployed in fully, semi-, or partially deployed positions. This allows for rapid, scientific, efficient, and comprehensive cooling and extinguishing of battery fires in large, medium, small, and micro electric vehicles, miniaturizing firefighting water conservation and increasing the reliability of continuous firefighting water supply. The female water inlet 18 of the card-type connector connects to pressurized fire water to supply the foldable fire extinguishing busbar 1.

[0044] The water mist nozzle 7 is the water spraying component of the foldable fire extinguishing bus 1. After the water spraying action, it forms a uniform and dense mist jet area, covering the battery fire area of ​​the electric vehicle. The pressurized water mist jet is not easily affected by the combustion airflow and wind force after the battery fire of the electric vehicle, and is suitable for long-term cooling and fire extinguishing in non-confined spaces.

[0045] The insulating rod hanging hole 19 is mainly used for quickly connecting or disconnecting with the multifunctional telescopic insulating rod equipped by the fire rescue team on unpaved roads. After the multifunctional telescopic insulating rod is connected to the foldable fire extinguishing bus 1, the insulating rod is used to help push the foldable fire extinguishing bus 1 to the bottom of the electric vehicle just below the battery fire site or pull the foldable fire extinguishing bus 1 out from the bottom of the electric vehicle.

[0046] After the stabilizing guide wheel component 8 is horizontally loaded and rolled, the foldable fire extinguishing busbar 1 is smoothly moved from the fire extinguishing attack point to the battery fire location at the bottom of the electric vehicle, or the foldable fire extinguishing busbar 1 is smoothly moved from the battery fire location at the bottom of the electric vehicle back to the fire extinguishing attack point;

[0047] Place the fully unfolded, half-folded or partially unfolded foldable fire extinguishing bus 1 on the ground near the fire extinguishing attack point of the electric vehicle on fire, with the female water inlet 18 of the card interface facing outward (i.e., in the opposite direction of the fire point), and then connect the fire hose to the female water inlet 18 of the card interface to supply water to the foldable fire extinguishing bus 1. When the water supply pressure gradually increases until the fire hose of the water supply is tightened due to the increase in water pressure, the firefighters, after wearing high-grade insulating gloves, insulating boots and arranging electrical insulating equipment, grab the fire hose of the water supply and push the foldable fire extinguishing bus 1 horizontally to the bottom of the electric vehicle where the battery on fire is located. The foldable fire extinguishing bus 1 will then spray out a water mist jet with uniform and dense droplets covering the fire area, thereby efficiently cooling and extinguishing the fire. When encountering some unpaved roads, the multifunctional telescopic insulating rod equipped by the fire rescue team is quickly connected to the insulating rod hanging hole 19, and the insulating rod is used to assist in pushing the foldable fire extinguishing bus 1 to the bottom of the electric vehicle just below the battery fire site to cool down and extinguish the fire;

[0048] The material of the foldable fire extinguishing busbar 1 is one or more of the following metals and alloy materials: aluminum alloy, titanium alloy, copper alloy, stainless steel, and carbon steel.

[0049] Example 2: This example is used to illustrate the fire extinguishing device of the present invention. Fire extinguishing device 2 is a device that uses a foldable fire extinguishing bus 1 to extinguish a fire at the battery fire site on the bottom of an electric vehicle. Fire extinguishing device 2 includes the following steps:

[0050] (1) It is known that the main fuel of electric vehicle fires is lithium batteries. When lithium batteries catch fire in non-confined spaces, the most effective fire extinguishing device is to use a large amount of cooling water to cool down and extinguish the fire. Using fine water mist to cool down and extinguish the fire is more efficient. Fine water mist has moderate droplets, jets, and shooting speeds, and is less affected by airflow. It can effectively cool down and extinguish the fire under the jet-like burning flames of electric vehicle lithium batteries, control the burning area, and effectively prevent the fire from spreading and expanding.

[0051] (2) Place the fully unfolded, half-folded or partially unfolded foldable fire extinguishing bus 1 of the utility model on the ground near the fire extinguishing attack point of the electric vehicle on fire, and point the female water inlet 18 of the card interface outward (i.e., in the opposite direction of the fire point), then connect the fire hose to the female water inlet 18 of the card interface to supply water to the foldable fire extinguishing bus 1. When the water supply pressure gradually increases until the fire hose is tightened due to the increase in water pressure, the firefighters wear high-grade insulating gloves, insulating boots and arrange electrical insulating equipment, and ensure that the electric vehicle and charging facilities are all powered off. Then, they grab the fire hose and push the foldable fire extinguishing bus 1 horizontally to the bottom of the electric vehicle where the battery is on fire. The foldable fire extinguishing bus 1 will then spray out a uniform and dense mist jet covering the fire area, effectively cooling and extinguishing the fire. When encountering some unpaved roads, the multifunctional telescopic insulating rod equipped by the fire rescue team is quickly connected to the insulating rod hanging hole 19, and the insulating rod is used to assist in pushing the foldable fire extinguishing bus 1 to the bottom of the electric vehicle just below the battery fire site to cool down and extinguish the fire;

[0052] Example 3: This example is used to illustrate the effect of the fire extinguishing device of the present invention.

[0053] (1) After using the foldable fire extinguishing busbar 1 to efficiently cool down and extinguish the fire for a period of time, the battery components of the electric vehicle battery fire are completely burned out, the combustion range gradually shrinks, the battery temperature drops to below the factory allowable temperature, and the ignition energy is reduced to insufficient for ignition. After cooling, the fuel released by the battery due to heat will gradually decrease, and it will not continue to release a large amount of fuel. The amount of fuel generated is insufficient to sustain continued combustion. The dense mist droplet water mist jet covering the fire site forms a certain degree of oxygen isolation and suffocation extinguishing effect on the fire site area. The combustion supporting material is insufficient to sustain continued combustion. The combustion chain reaction of each battery cell of the electric vehicle battery fire is continuously suppressed, so that the four sufficient conditions for maintaining combustion are all effectively destroyed, suppressed or eliminated. The combustion chain reaction cannot continue, and the electric vehicle fire is successfully extinguished relatively quickly. After the fire is extinguished, the monitoring continues to efficiently cool down for a period of time to prevent re-ignition.

[0054] (2) As electric vehicle fires take a long time to extinguish and are prone to explosions and deflagrations, firefighters should evacuate to a safe area outside the range of burning car batteries, tires, explosions and deflagrations, and electric shock injuries while using the foldable fire extinguishing bus 1 to spray water to cool down and extinguish the fire and wait for the fire to be extinguished.

[0055] Compared with existing electric vehicle fire extinguishing devices and fire extinguishing technology equipment, the foldable fire extinguishing bus 1 and the fire extinguishing device 2 of the present invention have but are not limited to the following beneficial effects:

[0056] Compared with the existing electric vehicle fire extinguishing devices and fire extinguishing technical equipment, the utility model foldable fire extinguishing bus 1 and its fire extinguishing device 2 are novel, creative, practical and feasible, filling the gap in domestic and foreign electric vehicle fire extinguishing devices and fire extinguishing devices, and are scientific innovations in fire fighting and rescue theory and technical equipment.

[0057] The utility model provides a foldable fire extinguishing bus 1 and a fire extinguishing device 2 thereof, which solves the recognized global fire-fighting problem of extinguishing new types of fires in electric vehicles.

[0058] The foldable fire extinguishing bus 1 of the utility model has the advantages of being easy to fold, easy to operate, portable, space-saving, water-saving, and saving the physical and manpower of firefighters. It promotes fire rescue teams and unit micro fire stations to accelerate the construction of a new fire extinguishing equipment system for electric vehicle fires, and improves the safety of fire fighting and rescue operations and the ability to rescue and win scientifically. The industry market demand has huge potential. All fire rescue teams, micro fire stations, and social fire safety main responsible units are equipped and reserved for electric vehicle fire rescue, self-rescue, and rescue by others. It has broad development prospects, promotes the innovative development of the emergency safety industry, and is of great significance to public fire safety.

[0059] Although the present invention has been described to a certain extent, it is obvious that appropriate changes can be made to various conditions without departing from the spirit and scope of the present invention. It is understood that the present invention is not limited to the embodiments, but belongs to the scope of the claims, which includes the same replacement of each element.

[0060] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although this specification has described the present invention in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or replacement of the present invention; and all technical solutions and improvements that do not depart from the spirit and scope of the utility model are included in the scope of the claims of the present invention.

Claims

1. A foldable fire extinguishing busbar, comprising a left longitudinal pipe (3), a right longitudinal pipe (4), a front transverse pipe (5), a rear transverse pipe (6), a water mist nozzle (7), and a balancing guide wheel component (8), characterized in that: The left longitudinal tube (3) is composed of a left front longitudinal tube (9), a left middle longitudinal tube (10), and a left rear longitudinal tube (11) connected together; the right longitudinal tube (4) is composed of a right front longitudinal tube (12), a right middle longitudinal tube (13), and a right rear longitudinal tube (14) connected together; The front end of the left front longitudinal tube (9) is connected to a male connector (15) of a card interface, the rear end is connected to an inner buckle self-locking interface (16), and the tube body is connected to a water mist nozzle (7); the two ends of the left middle longitudinal tube (10) are connected to inner buckle self-locking interfaces (16), and the tube body is connected to a water mist nozzle (7); the two ends of the left rear longitudinal tube (11) are connected to inner buckle self-locking interfaces (16), and the tube body is connected to a water mist nozzle (7); The front end of the right front longitudinal tube (12) is connected to a male plug of a card-type interface (15), the rear end is connected to an inner buckle self-locking interface (16), and the tube body is connected to a water mist nozzle (7); the two ends of the right middle longitudinal tube (13) are connected to the inner buckle self-locking interface (16), and the tube body is connected to the water mist nozzle (7); the two ends of the right rear longitudinal tube (14) are connected to the inner buckle self-locking interface (16), and the tube body is connected to the water mist nozzle (7).

2. A foldable fire extinguishing busbar according to claim 1, characterized in that: The left and right ends of the front transverse tube (5) are respectively connected to a card-type interface female head (17), the middle front side is connected to a card-type interface female head water inlet (18), the tube body is connected to a water mist nozzle (7), an insulating rod hanging hole (19) and a balancing guide wheel component (8).

3. A foldable fire extinguishing busbar according to claim 2, characterized in that: The left and right ends of the rear transverse tube (6) are respectively connected to inner buckle self-locking interfaces (16), and the tube body is connected to a water mist nozzle (7) and a balancing guide wheel component (8).

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