A precise fire extinguishing device and process extending into a mobile vehicle chassis

Abstract

The present invention relates to a precise fire extinguishing device and process that extends into a mobile automobile chassis. Water is sprayed on all sides of a vehicle on fire through a chassis water spray frame, two lateral water spray pipes and a water spray port on a first fire barrier. The two lateral water spray pipes are also provided with a temperature sensor. When the temperature sensor senses that the temperature reaches a set value, the control component controls the first solenoid valve, the second solenoid valve and the third solenoid valve to close, and the liquid is concentrated in the chassis water spray frame. The water pressure and water flow in the chassis water spray frame increase, thereby achieving the first centralized precise cooling and fire extinguishing. When the temperature-sensing nozzle on the chassis water spray frame is close to the center of the battery fire and the temperature is greater than 150 degrees Celsius, the pyrolysis blockage in the second water outlet of the temperature-sensing nozzle is decomposed, and a large amount of coolant is sprayed from the second water outlet to perform secondary precise cooling and fire extinguishing on the battery fire point.

Description

Technical Field

[0001] The present invention belongs to the technical field of automobile fire extinguishing equipment, and in particular relates to a precise fire extinguishing device and process that extends into a mobile automobile chassis. Background Art

[0002] At present, the number of vehicles in society is increasing, the accumulation of new energy vehicle technology is insufficient, and the stability and reliability of the electric system needs to be gradually improved. Once a vehicle catches fire, the surface fire is easy to deal with, but the difficult-to-observe position of the chassis is not easy to extinguish or cool, and it is easy to cause explosion or reignition. The car chassis battery fire generally has the following stages: The first stage: 80℃~120℃: Within this temperature range, the solid electrolyte membrane (SEI) in the battery begins to decompose; the second stage: 150℃~270℃: the diaphragm closes, shrinks and decomposes, the positive and negative electrodes are short-circuited, and the negative electrode and the electrolyte are The carbonate solvent in the battery reacts with the side reaction to produce lithium carbonate, ethylene, ethane and propane, etc., releasing a lot of heat, and the temperature of the lithium-ion battery continues to rise; the third stage: 170℃~450℃, the safety valve opens and the gas is ejected. At high temperature, many reactions will occur in the battery, producing a variety of gases. The internal pressure of the battery continues to increase, and the ejected gas will ignite and explode. The ejected gas contains a large amount of flammable gas. When it encounters air and the temperature reaches the ignition point or there is an ignition source, the combustion conditions are met, and it will ignite and release a lot of heat. The temperature can be as high as 900℃.

[0003] Existing vehicle chassis fire extinguishing devices generally perform cooling and fire extinguishing at the start of the first or second stage, generally by spraying the chassis through a fire hydrant or fire extinguisher. This fire extinguishing method has low fire extinguishing efficiency, cannot perform accurate fire extinguishing, and has a low safety factor for operators. In view of this, this solution was created. Summary of the Invention

[0004] In view of the deficiencies in the existing technology, the technical problem to be solved by the present invention is to provide a precise fire extinguishing device and process that extends into a mobile automobile chassis, which can isolate the two sides of the burning vehicle to prevent the flames from spreading, and accurately extinguish the fire and cool the chassis.

[0005] To solve the above technical problems, the present invention adopts the following technical solution: a precise fire extinguishing device that is inserted into a mobile vehicle chassis, comprising a mobile integrated box, a chassis water spray frame, two side water spray pipes, a first fire barrier, two second fire barriers and a temperature sensing control system.

[0006] The chassis water spray frame is connected to the lower end of the surface of the mobile integrated box and is flipped toward one side of the mobile integrated box. The two side water spray pipes are connected to the lower end of the surface of the mobile integrated box and are located on both sides of the chassis water spray frame. The side water spray pipes are flipped toward one side of the mobile integrated box.

[0007] The first fire barrier is connected to the side of the mobile integrated box facing the chassis water spray frame, and the two second fire barriers are respectively connected to the two lateral water spray pipes; the chassis water spray frame, the lateral water spray pipes, the first fire barrier, and the two second fire barriers are provided with nozzle interfaces;

[0008] The temperature sensing control system includes two groups of temperature sensors, a first solenoid valve, a second solenoid valve, a third solenoid valve and a control component. The first solenoid valve is used to control the connection between the lateral water spray pipe and the water tank inside the mobile integrated box, the second solenoid valve is used to control the connection between the second fire barrier and the water tank inside the mobile integrated box, and the third solenoid valve is used to control the connection between the first fire barrier and the water tank inside the mobile integrated box; the two groups of temperature sensors are embedded in the circumference of the lateral water spray pipe and face the side of the chassis water spray frame. When the control component detects that the temperature detected by the temperature sensor reaches the set value, it drives the first solenoid valve, the second solenoid valve and the third solenoid valve to close.

[0009] Furthermore, a temperature-sensing nozzle is installed on the nozzle interface located on the chassis water spray frame. The temperature-sensing nozzle includes a nozzle body. The upper circumference of the nozzle body includes an annular inclined surface and a horizontal surface. The annular inclined surface surrounds the horizontal surface. A plurality of first liquid spray outlets arranged at annular intervals are provided on the annular inclined surface. A plurality of second liquid spray outlets arranged at annular intervals and a third liquid spray outlet located between the plurality of second liquid spray outlets are provided on the horizontal surface. A water flow cavity is provided in the nozzle body. The first liquid spray outlet, the second liquid spray outlet and the third liquid spray outlet are connected to the water flow cavity. The upper opening of the second liquid spray outlet is blocked with a pyrolysis blockage.

[0010] Furthermore, the pyrolysis blockage is made of polyvinyl chloride, polyethylene or polyoxymethylene.

[0011] Furthermore, the opening of the second liquid spraying port located in the water passage cavity is an expanded opening.

[0012] Furthermore, the first fire barrier includes a first frame, a first water outlet pipe is provided in the middle of the first frame, the water outlet is located on the first water outlet pipe, a fire blanket is laid on the side of the first frame facing the mobile integrated box, and first support legs are provided on both sides of the lower end of the first frame, the first support legs are fixedly connected to the mobile integrated box and are used to connect the waterway.

[0013] Furthermore, the second fire barrier includes a second frame, a fire blanket is laid on the outward side of the second frame, second legs are provided on both sides of the lower end of the second frame, and the second legs are hinged to the lateral water spray pipe; a second water outlet pipe is formed in the middle of the second frame, and a water passage is formed inside the second leg close to the side of the mobile integrated box and the second water outlet pipe, a plurality of second extension pipes are formed on the circumference of the second water outlet pipe, and a nozzle interface is provided on the circumference of the second extension pipe, and the nozzle interface faces the side of the chassis water spray frame.

[0014] Furthermore, a first water inlet is formed on the circumference of the lateral water spray pipe, and a first water outlet is provided on the movable integrated box, and the first water inlet and the first water outlet are connected by a high-temperature resistant water pipe;

[0015] A second water inlet is formed on the second fire barrier, and a second water outlet is provided on the movable integrated box. The second water inlet and the second water outlet are connected through a high-temperature resistant water pipe.

[0016] A third water inlet is formed on the chassis water spray frame, and a third water outlet is provided on the movable integrated box; the third water inlet and the third water outlet are connected through a high-temperature resistant water pipe.

[0017] Furthermore, the chassis water spray frame includes multiple first water spray pipes, water inlet pipes and connecting pipes, one end of multiple first water spray pipes is connected to the water inlet pipe, and the other end of multiple first water spray pipes is connected to the connecting pipe, and multiple first water spray pipes are formed with multiple nozzle interfaces arranged at intervals.

[0018] A precise fire extinguishing process for inserting into a mobile vehicle chassis uses a precise fire extinguishing device inserted into a mobile vehicle chassis to extinguish a fire, comprising the following steps:

[0019] S1. Deploy the chassis water spray frame, lateral water spray pipes, and second fire barrier, open all valves, and drive the mobile integrated box toward the target vehicle until the chassis water spray frame extends into the vehicle chassis and the two lateral water spray pipes and two fire barriers are deployed on both sides of the vehicle.

[0020] S2, the chassis water spray frame, the side water spray pipe, the sprinklers connected to the sprinkler interfaces on the first and second fire barriers, and the temperature-sensing sprinklers spray water;

[0021] S3. The temperature sensors sense the temperature on both sides of the vehicle. When the temperature sensors on both sides of the vehicle sense that the temperature reaches or exceeds the set value, the control component controls the first solenoid valve, the second solenoid valve and the third solenoid valve to close, increase the water pressure and spray volume of the chassis water spray frame, and perform the first centralized cooling.

[0022] S4. When the temperature-sensing nozzle located on the bottom basin water spray frame is close to the battery fire site and the temperature is higher than 150 degrees Celsius, the pyrolysis blockage in the second water outlet on the temperature-sensing nozzle is pyrolyzed by the high temperature, and water is sprayed from the second water outlet for a second centralized cooling.

[0023] S5. When the fire source is suppressed, the first solenoid valve, the second solenoid valve, and the third solenoid valve are opened, and the chassis water spray frame, the side water spray pipes, and the sprinklers connected to the sprinkler interfaces on the first and second fire barriers are all opened to spray water to cool the vehicle. The water spraying time is 10-15 minutes. If the fire source is not effectively suppressed and spreads, the pyrolysis blockages on the multiple temperature-sensing sprinklers on the bottom basin water spray frame are pyrolyzed in turn by high temperature, and the temperature-sensing sprinklers on the bottom basin water spray frame spray water at a high flow rate to cool the vehicle.

[0024] Furthermore, the set value of the sensed temperature in the temperature sensor in step S3 is 90 degrees Celsius to 100 degrees Celsius.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. The present invention provides a precise fire extinguishing device and process that extends into a mobile vehicle chassis. The chassis water spray frame, two lateral water spray pipes, and the water spray port on the first fire barrier spray water on all sides of the vehicle on fire. The chassis water spray frame is used to suppress the fire source and reduce the temperature. The lateral water spray pipes are used to reduce the temperature on both sides of the vehicle to prevent the fire source from spraying out. The water spray port of the first fire barrier can ensure that the temperature on one side of the mobile integrated box is reduced, reducing the safety hazards of the operator. The first fire barrier and two second fire barriers are provided to ensure that when the fire is large, the flames will not splash to the outside of the first fire barrier and the two second fire barriers, so that the entire The fire extinguishing process is safer, and in this solution, temperature sensors are also provided on the two lateral water spray pipes. When the temperature sensor senses that the temperature has reached the set value, the control component controls the first solenoid valve, the second solenoid valve and the third solenoid valve to close, and the liquid is concentrated in the chassis water spray frame. The water pressure in the chassis water spray frame increases, and the water flow increases, realizing the first centralized and precise cooling and fire extinguishing. When the temperature-sensing nozzle on the chassis water spray frame is close to the center of the battery fire and the temperature is greater than 150 degrees Celsius, the pyrolysis blockage in the second water outlet on the temperature-sensing nozzle is decomposed, and a large amount of coolant is sprayed from the second water outlet to perform secondary precise cooling and fire extinguishing on the battery fire point.

[0027] 2. The opening of the second water outlet in the water passage cavity is expanded, which can increase the water pressure of the coolant sprayed from the second water outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the three-dimensional structure of a semi-enclosed, foldable and movable automobile fire extinguishing equipment of the present invention;

[0029] Figure 2 A schematic diagram of a three-dimensional structure of another aspect of the present invention;

[0030] Figure 3 A schematic diagram of the three-dimensional structure of the lateral water spray pipe and the second fire barrier in the present invention;

[0031] Figure 4 This is a schematic diagram of the three-dimensional structure of the chassis water spray frame in the present invention;

[0032] Figure 5 Schematic diagram of the three-dimensional structure of the third pulley in the present invention;

[0033] Figure 6 Schematic diagram of the three-dimensional structure of the hinged portion of the fifth hinged seat and the sixth hinged seat in the present invention;

[0034] Figure 7 Schematic diagram of the three-dimensional structure of the hinge between the first hinge seat and the second hinge seat in the present invention

[0035] Figure 8 Schematic diagram of the three-dimensional structure of the connecting parts in the present invention

[0036] Figure 9 Schematic diagram of the maximum coverage of the spray liquid when the atomizing nozzle and the temperature sensing nozzle are arranged in a horizontally inclined manner in the present invention;

[0037] Figure 10 Schematic diagram of the maximum coverage of the spray liquid when the atomizing nozzle and the temperature sensing nozzle are vertically tilted in the present invention;

[0038] Figure 11 Schematic diagram of the maximum coverage of the spray liquid when the atomizing nozzle and the temperature sensing nozzle are arranged in a horizontally inclined and vertically inclined manner in the present invention;

[0039] Figure 12 This is a schematic diagram of the spray path and maximum range of the medium temperature sensing nozzle after the nozzle is installed at an angle;

[0040] Figure 13 Schematic diagram of the three-dimensional structure of the temperature-sensing nozzle of the present invention;

[0041] Figure 14 Schematic diagram of the cross-sectional structure of the temperature-sensing nozzle of the present invention;

[0042] Figure 15 Schematic diagram of the control principle of the temperature sensor, control assembly and solenoid valves in the present invention.

[0043] Markings in the figure: 1. Mobile integrated box; 11. Base; 12. Second hinged seat; 13. Sixth hinged seat; 14. Reinforcement plate; 141. Second pulley; 15. First water outlet; 16. Second water outlet; 17. Third water outlet; 18. Connecting pipe; 19. L-shaped reinforcement plate; 2. Chassis water spray frame; 21. First water spray pipe; 211. Third extension pipe; 22. Water inlet pipe; 221. Third water inlet; 222. Fifth hinged seat; 23. Connecting pipe; 231. Mounting plate; 232. Third pulley; 3. Lateral water spray pipe; 31. First water inlet; 32. First extension pipe; 33. First pulley; 34. First hinged seat; 35. Third hinged seat; 4. First fire barrier; 4 1. First frame; 42. First support leg; 43. First water outlet pipe; 431. Water outlet; 44. Clamping column; 441. Clamping claw; 5. Second fire barrier; 51. Second frame; 511. Second support leg; 52. Second water outlet pipe; 53. Second extension pipe; 54. Fourth hinge seat; 55. Second water inlet; 6. Atomizing nozzle; 7. Fire blanket; 8. Connecting component; 81. Connecting piece; 82. Connecting sleeve; 83. U-shaped clamp; 9. Temperature sensor; 10. Temperature sensing nozzle; 101. Annular slope; 102. Horizontal surface; 103. First liquid spray outlet; 104. Second liquid spray outlet; 105. Third liquid spray outlet; 106. Water passage chamber; 107. Expansion; 108. Pyrolysis blockage. DETAILED DESCRIPTION

[0044] In order to make the above features and advantages of the present invention more obvious and easy to understand, embodiments are given below with reference to the accompanying drawings for detailed description.

[0045] like Figure 1-15 As shown, a precise fire extinguishing device that extends into a mobile automobile chassis includes a mobile integrated box 1, a chassis water spray frame 2, two lateral water spray pipes 3, a first fire barrier 4, two second fire barriers 5 and a temperature sensing control system.

[0046] The mobile integrated box 1 is driven by a motor drive method commonly used in the prior art, which will not be described in detail here. The mobile integrated box 1 is used to house the circuit board, control components, water tank, water tank valve assembly and handheld consumer (for special situations, such as flammable materials catching fire near the vehicle).

[0047] A base 11 is formed at the bottom of the integrated housing on the side facing the chassis water spray frame 2. The surface of the base 11 is provided with a first water outlet 15, a second water outlet 16, and a third water outlet 17. A first fire barrier 4 is connected to the upper surface of the base. The first fire barrier 4 is provided with a water spray interface, within which an atomizing nozzle 6 is installed. The first fire barrier 4 includes a first frame 41. Two first water outlet pipes 43 are provided in the middle of the first frame 41, spaced apart vertically. Water outlets 431 are located on the first water outlet pipes 43. A fire blanket 7 is provided on the side of the first frame 41 facing the mobile integrated housing 1. The fire blanket 7 is a flame-retardant blanket commonly used in the prior art. First legs 42 are provided on both sides of the lower end of the first frame 41. The first legs 42 are fixedly connected to the mobile integrated housing 1 and are used to connect the waterway. Specifically, a connecting pipe 18 is provided on the upper surface of the base 11. The first legs 42 are connected to and communicate with the connecting pipe 18.

[0048] Two lateral water spray pipes 3 are connected to the lower end of the surface of the mobile integrated box 1 and are located on both sides of the chassis water spray frame 2. The lateral water spray pipes 3 are flipped toward the side of the mobile integrated box 1. A first water inlet 31 is formed on the circumference of the lateral water spray pipe 3. The mobile integrated box 1 is provided with a first water outlet 15. The first water inlet 31 and the first water outlet 15 are connected by a high-temperature resistant water pipe. Specifically, a plurality of first extension pipes 32 are provided on the upper surface of the lateral water spray pipe 3 at intervals. The number of first extension pipes 32 can be 4-6. The circumference of the first extension pipe 32 has a nozzle interface, which faces the side of the chassis water spray frame 2. Preferably, the nozzle interface is set at an angle. When the nozzle is installed, the water spraying area can be increased. The nozzle interface is used to install the atomizing nozzle 6.

[0049] A first hinged seat 34 is provided at the end of the lateral water spray pipe 3. A second hinged seat 12 is provided below the side of the mobile integrated box 1 facing the lateral water spray pipe 3. The second hinged seat 12 is provided on the side of the base 11. The first hinged seat 34 and the second hinged seat 12 are hingedly connected. An L-shaped reinforcement plate 19 is also provided between the second hinged seat 12 and the mobile integrated box 1. One side of the L-shaped reinforcement plate 19 is connected to the upper surface of the second hinged seat 12, and the other side of the L-shaped reinforcement plate 19 is connected to the upper surface of the base 11. A first pulley 33 is formed on the lower surface of the outward end of the lateral water spray pipe 3.

[0050] The two second fire barriers 5 are respectively rotatably connected to the surfaces of the two lateral water spray pipes 3 and flipped toward the side of the chassis water spray frame 2. The second fire barrier 5 includes a second frame body 51. The outward side of the second frame body 51 is covered with a fire blanket 7. Second support legs 511 are provided on both sides of the lower end of the second frame body 51. The second support legs 511 are hinged to the lateral water spray pipes 3. Specifically, third hinge seats 35 are provided on both sides of the upper surface of the lateral water spray pipes 3, and a fourth hinge seat 54 is provided at the lower end of the second support legs 511. The third hinge seat 35 and the fourth hinge seat 54 are hinged to each other. A second water outlet pipe 52 is formed in the middle of the second frame 51, and a reinforcing rib is provided between the second water outlet pipe 52 and the bottom of the second frame 51. A water flow channel is formed inside the second leg close to the side of the mobile integrated box 1 and the second water outlet pipe 52. A plurality of second extension pipes 53 are formed on the circumference of the second water outlet pipe 52. The circumference of the second extension pipe 53 has a nozzle interface, and the nozzle interface faces the side of the chassis water spray frame 2. An atomizing nozzle 6 is provided at the nozzle interface. A second water inlet 55 is formed on the second leg, and the second water inlet 55 is connected to the water flow channel. A second water outlet 16 is provided on the mobile integrated box 1, and the second water inlet 55 and the second water outlet 16 are connected by a high-temperature resistant water pipe.

[0051] Preferably, an unfolded connecting component 8 is further provided between the first fire barrier 4 and the second fire barrier 5. The connecting component 8 includes an L-shaped connecting piece 81, a connecting sleeve 82 and a U-shaped clamp. The L-shaped connecting piece 81 includes a horizontal plate and a vertical plate. The vertical plate is connected to the outward side of the horizontal plate. There are two connecting sleeves 82 and they are connected to the side of the horizontal plate facing the first fire barrier 4. The connecting sleeve 82 is sleeved on the rod body of the first fire barrier 4 and slides. The connecting sleeve 82 and the horizontal plate are hinged to each other. The U-shaped clamp is hinged to one end of the lower surface of the vertical plate. The U-shaped clamp 83 is used to be clamped into the rod body at the upper end of the second fire barrier 5 in the unfolded state to prevent the second fire barrier 5 from flipping inward in the unfolded state. After the connecting component 8 is clamped, the degree of freedom F of the second fire barrier 5 is -1, indicating that the clamped second fire barrier 5 is a statically determinate truss, that is, the second fire barrier 5 is well fixed.

[0052] The chassis water spray frame 2 includes three first water spray pipes 21, a water inlet pipe 22, and a connecting pipe 23. One end of the three first water spray pipes 21 is connected to the water inlet pipe 22. A third water inlet 221 is formed on the side wall of the water inlet pipe 22. The third water outlet 17 and the third water inlet 221 are connected by a high-temperature resistant water pipe. The water inlet pipe 22 is connected to the first water spray pipe 21. The other end of the three first water spray pipes 21 is connected to the connecting pipe 23. The three first water spray pipes 21 are formed with 4-6 nozzle interfaces arranged at intervals. Specifically, the side wall of the first water spray pipe 21 is formed with a third extension pipe 211 extending outward. The nozzle interface is set on the upper surface of the third extension pipe 211, and the nozzle interface is provided with a temperature-sensing nozzle 10.

[0053] The temperature sensing nozzle 10 includes a nozzle body, the upper surface of the nozzle body includes an annular inclined surface 101 and a horizontal surface 102, the annular inclined surface 101 surrounds the horizontal surface 102, and a plurality of first liquid spraying ports 103 arranged at an annular interval are provided on the annular inclined surface 101, a plurality of second liquid spraying ports 104 arranged at an annular interval are provided on the horizontal surface 102, and a third liquid spraying port 105 located between the plurality of second liquid spraying ports 104 is provided. A water passage cavity 106 is provided in the nozzle body. The first liquid spraying port 103, the second liquid spraying port 105 are provided at an annular interval. 04 and the third liquid spray port 105 are connected to the water passage chamber 106. The opening of the second liquid spray port 104 in the water passage chamber 106 is an expansion port 107, which can increase the water pressure of the coolant sprayed from the second water outlet 16. The upper opening of the second liquid spray port 104 is blocked with a pyrolysis blocker 108. The pyrolysis blocker 108 is made of polyvinyl chloride, polyethylene or polyoxymethylene. Preferably, in this solution, the material of the pyrolysis blocker 108 is polyethylene, the dissolution temperature is 160 degrees Celsius, and thermal decomposition begins at 130 degrees Celsius.

[0054] Preferably, an external thread is formed at the lower end of the outer circumference of the nozzle body, and an annular sealing groove is formed on the outer circumference of the nozzle body, and the annular sealing groove is located above the external thread.

[0055] The temperature sensing control system includes two groups of temperature sensors 9, a first solenoid valve, a second solenoid valve, a third solenoid valve and a control component. The number of temperature sensors 9 in each group is pcs. The first solenoid valve is used to control the connection between the lateral water spray pipe 3 and the water tank in the mobile integrated box 1, the second solenoid valve is used to control the connection between the second fire barrier and the water tank in the mobile integrated box 1, and the third solenoid valve is used to control the connection between the first fire barrier and the water tank in the mobile integrated box 1; the two groups of temperature sensors 9 are embedded in the circumference of the lateral water spray pipe 3 and face the side of the chassis water spray frame 2. Specifically, a temperature sensor 9 is embedded in the outer end, middle part and inner end of each lateral water spray pipe 3 respectively. When the control component detects that the temperature detected by the temperature sensor 9 reaches the set value, it drives the first solenoid valve, the second solenoid valve and the third solenoid valve to close. When any temperature sensor 9 reaches the set value, the control component controls the first solenoid valve, the second solenoid valve and the third solenoid valve to close.

[0056] Preferably, the control component is a PLC control center. When any temperature sensor 9 reaches the starting temperature, it will send a signal to the PLC control center. After receiving the signal, the PLC control center closes the first solenoid valve, the second solenoid valve and the third solenoid valve, reduces the water outlet holes on both sides, and increases the water output of the chassis spray frame 2 while keeping the water supply pressure of the equipment unchanged.

[0057] like Figure 9-11As shown, the circle and triangle area of ​​the cross section are the spray range, and the matrix dotted line is the schematic area of ​​the battery position; such an arrangement greatly improves the spray range of each nozzle. In practice, the tilt direction of each nozzle is adjusted according to the actual situation. Preferably, each nozzle is tilted, and the tilt angle is 42°-120°. The tilt of each nozzle is achieved by setting an inclined nozzle interface. Figure 12 As shown, the temperature-sensing nozzle 10 is tilted, and the cross section within the triangle is the spraying area, and the water spraying area will be increased.

[0058] In order to ensure the stability of the chassis water spray frame 2, reinforcing ribs are provided between adjacent first water spray pipes 21 on the same chassis water spray frame 2.

[0059] The chassis water spray frame 2 is connected to the lower end of the surface of the mobile integrated box 1 and flipped toward the side of the mobile integrated box 1. The water inlet pipe 22 is formed with two spaced fifth hinge seats 222 on the side of the mobile integrated box 1. Two sixth hinge seats 13 are formed on the side of the seat body 11 of the mobile integrated box 1. The fifth hinge seat 222 and the sixth hinge seat 13 are hinged to each other. The storage and placement of the chassis water spray frame 2 can be flipped by manual flipping or motor drive, and can be set according to actual conditions. The first fire barrier 4 is provided with two clamping columns 44 that are rotatably connected to its pipe body. The end face of the clamping column 44 is provided with a clamping claw 441, and a notch is formed on the clamping claw 441. The connecting pipe 23 is fixed by being deformed and clamped into the clamping claw 441 from the notch. The upper end of the sixth articulated seat 13 is fixedly connected to a reinforcing plate 14, which is welded to the seat body 11. The reinforcing plate 14 extends toward either side of the sixth articulated seat 13, and both ends of the reinforcing plate 14 are respectively formed with stable triangular plates extending upward and downward. A second pulley 141 is provided on the lower surface of the reinforcing plate 14, and an inwardly extending mounting plate 231 is fixedly connected to the upper surface of the connecting pipe 23. A third pulley 232 is provided on the lower surface of the mounting plate 231. A triangular support is formed by the two second pulleys 141 and one third pulley 232 to facilitate the movement of the chassis water spray frame 2 after placement.

[0060] The folding method of this scheme is as follows: the two second fire barriers 5 are flipped toward the chassis water spray frame 2, and then the chassis water spray frame 2 is flipped toward the mobile integrated box 1 by manpower or motor drive, and the side water spray pipe 3 is driven by the flipping of the mobile integrated box 1, and then by rotating the clamping column 44, the connecting pipe 23 on the mobile integrated box 1 is clamped into the clamping claw 441 from the notch of the clamping claw 441 to achieve folding, and the second fire barriers 5 and the side water spray pipe 3 are limited between the mobile integrated box 1 and the chassis water spray frame 2.

[0061] This solution also provides a precise fire extinguishing process for extending into a mobile vehicle chassis. The fire extinguishing process using the above-mentioned equipment includes the following steps: S1, deploying the chassis water spray frame 2, the lateral water spray pipes 3, and the second fire barrier 5, opening each valve, and driving the mobile integrated box 1 to move toward the target vehicle until the chassis water spray frame 2 extends into the vehicle chassis, and the two lateral water spray pipes 3 and the two fire barriers are deployed on both sides of the vehicle;

[0062] S2, chassis water spray frame 2, lateral water spray pipe 3, first fire barrier 4 and second fire barrier 5 upper nozzle interface connected to the nozzle head and temperature sensing nozzle 10 to spray water;

[0063] S3. The set value of the sensed temperature in the temperature sensor 9 is 90 degrees Celsius to 100 degrees Celsius. The temperature sensor 9 senses the temperature on both sides of the vehicle. When the temperature sensors 9 on both sides of the vehicle sense that the temperature reaches or exceeds the set value, the control component controls the first solenoid valve, the second solenoid valve and the third solenoid valve to close, increase the water pressure and spray volume of the chassis water spray frame 2, and perform the first centralized cooling.

[0064] S4: When the temperature-sensing nozzle 10 on the bottom basin water spray frame is close to the battery fire site and the temperature is higher than 150 degrees Celsius, the pyrolysis blockage 108 in the second water outlet 16 of the temperature-sensing nozzle 10 is pyrolyzed by the high temperature, and water is sprayed from the second water outlet 16 to perform a second centralized cooling operation;

[0065] S5. When the fire source is suppressed, the first solenoid valve, the second solenoid valve and the third solenoid valve are opened, and the sprinklers connected to the sprinkler interface on the chassis water spray frame 2, the side sprinkler pipe 3, the first fire barrier 4 and the second fire barrier 5 are all opened to spray water to cool the vehicle. The water spraying time is 10-15 minutes; when the fire source is not effectively suppressed and spreads, the pyrolysis blockages 108 on the multiple temperature-sensing sprinklers 10 on the bottom basin water spray frame are pyrolyzed in turn by high temperature, and the temperature-sensing sprinklers 10 on the bottom basin water spray frame spray water at a high flow rate to cool the vehicle.

[0066] This solution uses the chassis water spray frame 2, two lateral water spray pipes 3 and the water spray port 431 on the first fire barrier 4 to spray water on all sides of the vehicle on fire. The chassis water spray frame 2 is used to suppress the fire source and reduce the temperature. The lateral water spray pipes are used to cool down both sides of the vehicle to prevent the fire source from spraying out. The water spray port 431 of the first fire barrier 4 can ensure that the temperature on one side of the mobile integrated box 1 is reduced, reducing the safety hazards of the operators. The first fire barrier 4 and the two second fire barriers 5 are set to ensure that when the fire is large, the flames will not splash to the outside of the first fire barrier 4 and the two second fire barriers 5, making the entire fire extinguishing process safer. In the scheme, temperature sensors 9 are also provided on the two lateral water spray pipes 3. When the temperature sensor 9 senses that the temperature reaches the set value, the control component controls the first solenoid valve, the second solenoid valve and the third solenoid valve to close, and the liquid is concentrated in the chassis water spray frame 2. The water pressure and water flow in the chassis water spray frame 2 increase, realizing the first centralized and precise cooling and fire extinguishing. When the temperature-sensing nozzle 10 on the chassis water spray frame 2 is close to the center of the battery fire and the temperature is greater than 150 degrees Celsius, the pyrolysis blockage 108 in the second water outlet 16 on the temperature-sensing nozzle 10 is decomposed, and a large amount of coolant is sprayed from the second water outlet 16 to perform secondary precise cooling and fire extinguishing on the battery fire point.

[0067] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A precise fire extinguishing device that extends into a mobile vehicle chassis, characterized by: It includes a mobile integrated box, a chassis water spray frame, two side water spray pipes, a first fire barrier, two second fire barriers and a temperature control system. The chassis water spray frame is connected to the lower end of the surface of the mobile integrated box and is flipped toward one side of the mobile integrated box. The two side water spray pipes are connected to the lower end of the surface of the mobile integrated box and are located on both sides of the chassis water spray frame. The side water spray pipes are flipped toward one side of the mobile integrated box. The first fire barrier is connected to the side of the mobile integrated box facing the chassis water spray frame, and the two second fire barriers are respectively connected to the two lateral water spray pipes; the chassis water spray frame, the lateral water spray pipes, the first fire barrier, and the two second fire barriers are provided with nozzle interfaces; The temperature sensing control system includes two groups of temperature sensors, a first solenoid valve, a second solenoid valve, a third solenoid valve and a control component. The first solenoid valve is used to control the connection between the lateral water spray pipe and the water tank in the mobile integrated box, the second solenoid valve is used to control the connection between the second fire barrier and the water tank in the mobile integrated box, and the third solenoid valve is used to control the connection between the first fire barrier and the water tank in the mobile integrated box; the two groups of temperature sensors are embedded in the circumference of the lateral water spray pipe and face the side of the chassis water spray frame. When the control component detects that the temperature detected by the temperature sensor reaches the set value, it drives the first solenoid valve, the second solenoid valve and the third solenoid valve. The magnetic valve is closed; a temperature-sensing nozzle is installed on the nozzle interface located on the chassis water spray frame, and the temperature-sensing nozzle includes a nozzle body, and the upper surface of the nozzle body includes an annular inclined surface and an outlet horizontal surface, the annular inclined surface is arranged to surround the outlet horizontal surface, and a plurality of first liquid spray ports arranged at annular intervals are provided on the annular inclined surface, and a plurality of second liquid spray ports arranged at annular intervals and a third liquid spray port located between the plurality of second liquid spray ports are provided on the outlet horizontal surface. A water passage cavity is provided in the nozzle body, and the first liquid spray port, the second liquid spray port and the third liquid spray port are connected to the water passage cavity, and the upper opening of the second liquid spray port is blocked with a pyrolysis blockage; A connecting component is also provided between the first fire barrier and the second fire barrier after expansion, and the connecting component includes an L-shaped connecting piece, a connecting sleeve and a U-shaped clamp. The connecting piece includes a horizontal plate and a vertical plate, and the vertical plate is connected to the outward side of the horizontal plate. There are two connecting sleeves and they are connected to the side of the horizontal plate facing the first fire barrier. The connecting sleeve is sleeved on the rod body of the first fire barrier and slides. The connecting sleeve and the horizontal plate are hinged to each other. The U-shaped clamp is hinged to one end of the lower surface of the vertical plate. The U-shaped clamp is used to be clamped into the rod body at the upper end of the second fire barrier in the expanded state.

2. The precise fire extinguishing device that extends into a mobile vehicle chassis according to claim 1, characterized in that: The material of the pyrolysis blockage is polyvinyl chloride, polyethylene or polyoxymethylene.

3. The precise fire extinguishing device that extends into a mobile vehicle chassis according to claim 1, characterized in that: described The opening of the second liquid spraying port located in the water passage cavity is an expanded opening.

4. The mobile vehicle chassis precision fire extinguishing device according to claim 1, characterized in that: The first fire barrier includes a first frame, a first water outlet pipe is provided in the middle of the first frame, the water outlet is located on the first water outlet pipe, a fire blanket is laid on the side of the first frame facing the mobile integrated box, and first supporting legs are provided on both sides of the lower end of the first frame, the first supporting legs are fixedly connected to the mobile integrated box and are used to connect the waterway.

5. The mobile vehicle chassis precision fire extinguishing device according to claim 1, characterized in that: The second fire barrier includes a second frame, a fire blanket is laid on the outward side of the second frame, second legs are provided on both sides of the lower end of the second frame, and the second legs are hinged to the lateral water spray pipe; a second water outlet pipe is formed in the middle of the second frame, and a water passage is formed inside the second leg close to the side of the mobile integrated box and the second water outlet pipe, a plurality of second extension pipes are formed on the circumference of the second water outlet pipe, and a nozzle interface is provided on the circumference of the second extension pipe, and the nozzle interface faces the side of the chassis water spray frame.

6. The mobile vehicle chassis precision fire extinguishing device according to claim 1, characterized in that: A first water inlet is formed on the circumference of the lateral water spray pipe, and a first water outlet is provided on the movable integrated box, and the first water inlet and the first water outlet are connected by a high-temperature resistant water pipe; A second water inlet is formed on the second fire barrier, and a second water outlet is provided on the movable integrated box, and the second water inlet and the second water outlet are connected through a high-temperature resistant water pipe; A third water inlet is formed on the chassis water spray frame, and a third water outlet is provided on the movable integrated box; the third water inlet and the third water outlet are connected through a high-temperature resistant water pipe.

7. The mobile vehicle chassis precision fire extinguishing device according to claim 1, characterized in that: The chassis water spray frame includes multiple first water spray pipes, water inlet pipes and connecting pipes. One end of the multiple first water spray pipes is connected to the water inlet pipe, and the other end of the multiple first water spray pipes is connected to the connecting pipe. Multiple nozzle interfaces are formed on the multiple first water spray pipes at intervals.

8. A precise fire extinguishing process for extending into a mobile vehicle chassis, characterized by: The fire is extinguished by using a precise fire extinguishing device that extends into a mobile vehicle chassis as described in claim 1, comprising the following steps: S1. Deploy the chassis water spray frame, lateral water spray pipes, and second fire barrier, open all valves, and drive the mobile integrated box toward the target vehicle until the chassis water spray frame extends into the vehicle chassis and the two lateral water spray pipes and two fire barriers are deployed on both sides of the vehicle. S2, the chassis water spray frame, the side water spray pipe, the sprinklers connected to the sprinkler interfaces on the first and second fire barriers, and the temperature-sensing sprinklers spray water; S3: The temperature sensors sense the temperature on both sides of the vehicle. When the temperature sensors on both sides of the vehicle sense that the temperature reaches or exceeds the set value, the control component controls the first solenoid valve, the second solenoid valve, and the third solenoid valve to close, increase the water pressure and spray volume of the chassis water spray frame, and perform the first centralized cooling; S4. When the temperature-sensing nozzle located on the bottom basin water spray frame is close to the battery fire site and the temperature is higher than 150 degrees Celsius, the pyrolysis blockage in the second water outlet on the temperature-sensing nozzle is pyrolyzed by the high temperature, and water is sprayed from the second water outlet for a second centralized cooling. S5. When the fire source is suppressed, the first solenoid valve, the second solenoid valve, and the third solenoid valve are opened, and the chassis water spray frame, the side water spray pipes, and the sprinklers connected to the sprinkler interfaces on the first and second fire barriers are all opened to spray water to cool the vehicle. The water spraying time is 10-15 minutes. If the fire source is not effectively suppressed and spreads, the pyrolysis blockages on the multiple temperature-sensing sprinklers on the bottom basin water spray frame are pyrolyzed in turn by high temperature, and the temperature-sensing sprinklers on the bottom basin water spray frame spray water at a high flow rate to cool the vehicle.

9. The precise fire extinguishing process for extending into a mobile automobile chassis according to claim 8, characterized in that: The set value of the sensed temperature in the temperature sensor in step S3 is 90 degrees Celsius to 100 degrees Celsius.

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