An atomizing nozzle for lithium battery box fire protection

Abstract

The present invention discloses an atomizing nozzle for lithium battery box fire protection, including a connection base, and further including: an atomizing chamber and a liquid inlet flow channel. The atomizing chamber is formed within the connection base and communicates with the bottom end of the connection base. The liquid inlet flow channel is opened at the top end of the connection base and communicates with the atomizing chamber. A nozzle body is installed at the end of the atomizing chamber away from the liquid inlet flow channel, and a nozzle swirl core is installed within the nozzle body. A one-way sealing assembly is located within the atomizing chamber and abuts between the nozzle body and the liquid inlet flow channel. The atomizing nozzle for lithium battery box fire protection provided by the present invention is applicable to the fire extinguishing system of lithium battery PACK electric boxes. The product has a compact structure, high integration, and good atomizing effect. At different pressures of 1.5 bar, 5.0 bar, 10 bar, and 18 bar, the atomizing angle (the change range of the atomizing angle is between 40° and 90°) also increases accordingly, thus presenting different atomizing effects.

Description

Technical Field

[0001] The present invention relates to the technical field of spray heads, and more specifically, to an atomizing spray head for fire protection of lithium battery boxes. Background Art

[0002] During the use of existing lithium battery packs, the main reasons for fire and explosion are thermal disorders caused by short circuits, overcharging, poor heat dissipation, etc. In short, when the temperature of the lithium battery itself and its surrounding environment is too high, the battery is prone to catch fire. At this time, it is necessary to spray a liquid fire extinguishing agent in time through a spray head to extinguish the fire.

[0003] In a traditional one-way spray head, a diaphragm-type one-way valve is usually adopted. When the liquid pressure reaches the set value, the diaphragm conducts, and the spraying function can be realized. However, once the diaphragm conducts, this one-way spray head becomes a conductive structure and cannot be used twice. When the liquid fire extinguishing agent in the fire protection device for the lithium battery box is used up, the spray head in the lithium battery box needs to be replaced, resulting in cumbersome installation and high cost.

[0004] Chinese Patent CN211962898U discloses a one-way fire extinguishing spray head for a lithium battery box, which includes a fixing member and a spray head mechanism installed on the fixing member, and also includes a pressure spring and a liquid-controlled one-way valve. The pressure spring is sleeved on the liquid-controlled one-way valve and installed in the cavity of the spray head mechanism. A liquid-controlled one-way valve is installed in the central through groove of the spray head, which can realize the one-way flow of liquid. When the liquid fire extinguishing agent is used up, there is no need to replace the fire extinguishing spray head, and it can be reused. Moreover, the structure is simple and the installation is convenient. However, in order to extinguish the fire faster, it is often necessary to cover the fire area with the liquid fire extinguishing agent to the greatest extent to achieve the purpose of quickly extinguishing the fire. Summary of the Invention

[0005] To achieve the above object, the present invention discloses an atomizing spray head for fire protection of lithium battery boxes, including a connection base, and further including: an atomization chamber and a liquid inlet flow channel. The atomization chamber is formed in the connection base and communicates with the bottom end of the connection base. The liquid inlet flow channel is opened at the top end of the connection base and communicates with the atomization chamber. A nozzle body is installed at the end of the atomization chamber away from the liquid inlet flow channel, a nozzle swirl core is installed in the nozzle body, and a one-way sealing assembly is located in the atomization chamber and abuts between the nozzle body and the liquid inlet flow channel.

[0006] Preferably, it further includes:

[0007] An installation base, which is integrally formed on the side end of the connection base;

[0008] An installation pressing plate, which is installed at the bottom end of the installation base. A through hole for the bottom end of the connection base to pass through is opened at the center end of the installation pressing plate;

[0009] A buffer rubber pad, which is clamped between the mounting base and the mounting pressing plate;

[0010] Hexagonal nuts, and four of the hexagonal nuts are connected in an array between the mounting base and the mounting pressing plate.

[0011] Preferably, the one-way sealing assembly includes:

[0012] A pressure relief head, a ramp opening is circumferentially formed on the inner wall of the liquid inlet channel near the atomization chamber end, and the pressure relief head is blocked on the ramp opening;

[0013] A first spring, the first spring is sleeved on the pressure relief head, and the end of the first spring away from the pressure relief head abuts against the end of the nozzle body near the nozzle swirl core.

[0014] Preferably, an external mounting thread is provided near the top end of the side of the connection base.

[0015] Preferably, the nozzle body is threadedly connected to the inner wall of the atomization chamber, and O-ring rubber gaskets are installed on the side end of the nozzle body and the side end of the pressure relief head.

[0016] Preferably, a vortex driving assembly connected to the pressure relief head is installed near the bottom of the inner wall of the atomization chamber, and a plurality of the vortex driving assemblies are circumferentially installed on the inner wall of the atomization chamber. The vortex driving assembly includes a guide plate, and the guide plate guides the liquid fed into the inner wall of the atomization chamber to flow in a vortex.

[0017] Preferably, the vortex driving assembly further includes:

[0018] A driving box, which is embedded and installed near the bottom of the inner wall of the atomization chamber;

[0019] A vertical bar, the top end of the vertical bar is connected to the pressure relief head through a mounting cross plate, and the bottom end of the vertical bar extends into it from the top end of the driving box;

[0020] A front rotating block, which is rotatably installed on the side end of the driving box;

[0021] A first gear ring, the first gear ring is located inside the driving box, the first gear ring is installed on the front rotating block, and the guide plate is installed on the end of the front rotating block away from the gear ring through a mounting circular plate;

[0022] A first rack, the first rack is installed on the vertical bar, and the first rack meshes with the first gear ring.

[0023] Preferably, the vortex driving assembly further includes:

[0024] A rear rotating block, which is rotatably installed on the inner wall of the driving box away from the front rotating block end;

[0025] The second gear ring is installed on the rear rotating block. The circumference of the second gear ring is larger than that of the first gear ring. A second rack meshing with the second gear ring is installed on the vertical bar. An idle running channel for the first gear ring to rotate idly is reserved between the first rack and the second rack on the vertical bar;

[0026] The locking drive assembly is located inside the drive box and is connected between the rear rotating block and the front rotating block.

[0027] Preferably, the upper locking drive assembly includes:

[0028] The locking groove is opened on the rear rotating block and penetrates through the rear rotating block;

[0029] The locking block is installed at the end of the front rotating block away from the flow guide plate;

[0030] The guide rod has one end passing through the locking groove and installed on the inner wall of the drive box, and the other end passing through the locking block and extending into the front rotating block;

[0031] The second spring is sleeved on the guide rod and abuts between the locking block and the inner wall of the drive box. Description of the Drawings

[0032] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0033] Figure 1 It is a cross-sectional view of the present invention;

[0034] Figure 2 It is a structural schematic diagram of the one-way sealing assembly of the present invention;

[0035] Figure 3 is Figure 2 an enlarged view of reference numeral A in

[0036] Figure 4 It is a structural schematic Figure 1 (when the flow guide plate is in a vertical state);

[0037] Figure 5 It is a structural schematic Figure 2 (when the flow guide plate is in an inclined state);

[0038] Figure 6 It is an external view of the present invention.

[0039] In the figure: 10. Connecting base; 11. Atomization chamber; 12. Liquid inlet flow channel; 13. Nozzle body; 14. Nozzle swirl core; 15. One-way sealing assembly; 16. Mounting base; 17. Mounting pressing plate; 18. Buffer rubber pad; 19. Hexagonal nut; 21. Pressure relief head; 22. Spring 1; 23. O-ring; 24. Deflector; 25. Drive box; 26. Vertical bar; 27. Mounting horizontal plate; 28. Front rotating block; 29. Gear ring 1; 20. Mounting circular plate; 31. Rack 1; 32. Rear rotating block; 33. Gear ring 2; 34. Rack 2; 35. Idle running channel; 36. Locking groove; 37. Locking block; 38. Guide rod; 39. Spring 2; 30. Mounting external thread. Detailed implementation mode

[0040] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work shall fall within the protection scope of the present invention.

[0041] Embodiment

[0042] The present invention will be further described below with reference to the accompanying drawings.

[0043] As Figures 1 to 6 shown, an atomizing nozzle for a lithium battery box fire extinguishing provided in this embodiment includes a connecting base 10, and further includes: an atomization chamber 11 and a liquid inlet flow channel 12. The atomization chamber 11 is formed in the connecting base 10 and communicates with the bottom end of the connecting base 10. The liquid inlet flow channel 12 is opened at the top end of the connecting base 10 and communicates with the inside of the atomization chamber 11. The nozzle body 13 is installed at the end of the atomization chamber 11 away from the liquid inlet flow channel 12. The nozzle swirl core 14 is installed in the nozzle body 13. The one-way sealing assembly 15 is located in the atomization chamber 11 and abuts between the nozzle body 13 and the liquid inlet flow channel 12.

[0044] The working principle and beneficial effects of the above technical solution are:

[0045] The present invention discloses an atomizing nozzle for lithium battery box fire fighting. When a fire is detected, the valve opens, and the liquid fire extinguishing agent is sent into the liquid inlet flow channel 12. Under the action of pressure, the one-way sealing assembly 15 opens, and the liquid fire extinguishing agent is sent from the liquid inlet flow channel 12 into the atomizing chamber 11. Under the action of the nozzle swirl core 14, the atomized liquid fire extinguishing agent is ejected from the nozzle body 12. The present invention provides an atomizing nozzle for lithium battery box fire fighting. The atomized liquid fire extinguishing agent can cover the fire area with the largest area, so as to achieve the purpose of quickly extinguishing the fire. The atomizing nozzle for lithium battery box fire fighting provided by the present invention is applicable to the lithium battery PACK electric box fire extinguishing system. The product has a compact structure, high integration, and good atomizing effect. At different pressures of 1.5 bar, 5.0 bar, 10 bar, and 18 bar, the atomizing angle (the change range of the atomizing angle is between 40° and 90°) also increases, thus presenting different atomizing effects.

[0046] In one embodiment, it further includes:

[0047] An installation base 16, which is integrally formed at the side end of the connection base 10;

[0048] An installation pressing plate 17, which is installed at the bottom end of the installation base 16. A through hole for the bottom end of the connection base 10 to pass through is provided at the center end of the installation pressing plate 17;

[0049] A buffer rubber pad 18, which is clamped between the installation base 16 and the installation pressing plate 17;

[0050] Hexagonal nuts 19, and four of the hexagonal nuts 19 are connected in an array between the installation base 16 and the installation pressing plate 17.

[0051] The working principle and beneficial effects of the above technical solution are:

[0052] The nozzle body 13 is detachably installed at the end of the atomizing chamber 11 far from the liquid inlet flow channel 12 and is located at the bottom end of the connection base 10. The installation pressing plate 17 is detachably installed at the bottom end of the installation base 16 through the hexagonal nuts 19, and the buffer rubber pad 18 is clamped between the installation base 16 and the installation pressing plate 17, improving the sealing performance of the atomizing nozzle.

[0053] In one embodiment, the one-way sealing assembly 15 includes:

[0054] A pressure relief head 21. A ramp opening is circumferentially provided on the inner wall of the liquid inlet flow channel 12 near the atomizing chamber 11 end, and the pressure relief head 21 is sealed on the ramp opening;

[0055] A first spring 22, which is sleeved on the pressure relief head 21. The end of the spring 17 far from the pressure relief head 21 abuts against the end of the nozzle body 13 near the nozzle swirl core 14.

[0056] The working principle and beneficial effects of the above technical solution are as follows:

[0057] When the valve is opened, the liquid fire extinguishing agent is sent into the liquid inlet channel 12. Under the action of pressure, the first spring 22 contracts, and the pressure relief head 21 gradually opens to block the liquid inlet channel 12. The liquid fire extinguishing agent is sent into the atomization chamber 11. The greater the pressure, the more the first spring 22 contracts, and the greater the flow rate of the liquid fire extinguishing agent sent into the atomization chamber 11. That is, at different pressures of 1.5 bar, 5.0 bar, 10 bar, and 18 bar, the contraction amount of the first spring 22 becomes larger, and the flow rate of the liquid fire extinguishing agent sent into the atomization chamber 11 gradually increases, and the atomization angle (the change range of the atomization angle is between 40° - 90°) also increases accordingly, thus presenting different atomization effects.

[0058] In one embodiment, an external installation thread 30 is provided near the top end of the side of the connection base 10.

[0059] The beneficial effects of the above technical solution are as follows:

[0060] The provision of the external installation thread 30 facilitates the disassembly and assembly of the atomizing nozzle.

[0061] In one embodiment, the nozzle body 13 is threadedly connected to the inner wall of the atomization chamber 11, and O-ring seals 23 are installed at the side ends of both the nozzle body 13 and the pressure relief head 21.

[0062] The beneficial effects of the above technical solution are as follows:

[0063] The O-ring seal 23 is installed at the side end of the nozzle body 13, and the O-ring seal 23 is also installed at the side end of the pressure relief head 21, which improves the sealing performance of the atomizing nozzle.

[0064] In one example, a vortex driving assembly connected to the pressure relief head 21 is installed near the bottom of the inner wall of the atomization chamber 11. A plurality of the vortex driving assemblies are circumferentially installed on the inner wall of the atomization chamber 11. The vortex driving assembly includes a flow guiding plate 24, and the flow guiding plate 24 guides the liquid flowing into the inner wall of the atomization chamber 11 to flow in a vortex.

[0065] The working principle and beneficial effects of the above technical solution are as follows:

[0066] The valve is opened, and the liquid fire extinguishing agent is fed into the liquid inlet flow channel 12. Under the action of pressure, the first spring 22 contracts, and the pressure relief head 21 gradually opens to block the liquid inlet flow channel 12. The liquid fire extinguishing agent is fed into the atomization chamber 11. During the process that the pressure relief head 21 moves in the direction of contraction of the first spring 22, it drives the vortex drive assembly to work. The flow guide plate 24 of the vortex drive assembly gradually converts from the vertical state to the inclined state. In this way, when the liquid fire extinguishing agent fills the atomization chamber 11 from top to bottom, under the guidance of the flow guide plate 24, the liquid fire extinguishing agent flows in a vortex, adding centrifugal force to the liquid fire extinguishing agent. When the liquid fire extinguishing agent passes through the swirl core 14 of the nozzle and sprays out from the nozzle body 12, the atomized liquid fire extinguishing agent droplets carry centrifugal force, thereby increasing the coverage area of the fire area.

[0067] In one embodiment, the vortex drive assembly further includes:

[0068] A drive box 25, which is embedded and installed on the inner wall of the atomization chamber 11 near the bottom;

[0069] A vertical bar 26, the top end of the vertical bar 26 is connected to the pressure relief head 21 through a mounting cross plate 27, and the bottom end of the vertical bar 26 extends into the drive box 25 from the top end of the drive box 25;

[0070] A front rotating block 28, which is rotatably installed on the side end of the drive box 25;

[0071] A first gear ring 29, which is located inside the drive box 25, the first gear ring 29 is installed on the front rotating block 28, and the flow guide plate 24 is installed on the end of the front rotating block 28 away from the first gear ring 29 through a mounting circular plate 20;

[0072] A first rack 31, which is installed on the vertical bar 26, and the first rack 31 meshes with the first gear ring 29.

[0073] The working principle and beneficial effects of the above technical solution are as follows:

[0074] The valve is opened, and the liquid fire extinguishing agent is fed into the liquid inlet flow channel 12. Under the action of pressure, the first spring 22 contracts, and the pressure relief head 21 gradually opens to block the liquid inlet flow channel 12. The liquid fire extinguishing agent is fed into the atomization chamber 11. During the process that the pressure relief head 21 moves in the direction of contraction of the first spring 22, it drives the vertical bar 26 to move downward through the mounting cross plate 27. During the downward movement of the first rack 31 installed on the vertical bar 26, it drives the first gear ring 29 meshing with it to rotate, and then drives the front rotating block 28 connected to the first gear ring 29 to rotate on the side end of the drive box 25, and then drives the flow guide plate 24 connected to the front rotating block 28 through the mounting circular plate 20 to rotate, thereby realizing the gradual conversion of the flow guide plate 24 from the vertical state to the inclined state.

[0075] In one embodiment, the eddy current drive assembly further includes:

[0076] A rear rotating block 32, which is rotatably installed on the inner wall of the drive box 25 away from the front rotating block 28 end;

[0077] A second gear ring 33, which is installed on the rear rotating block 32. The circumference of the second gear ring 33 is larger than that of the first gear ring 29. A second rack 34 meshing with the second gear ring 33 is installed on the vertical bar 26. A free rotation channel 35 for the first gear ring 29 to rotate freely is reserved between the first rack 31 and the second rack 34 on the vertical bar 26;

[0078] A locking drive assembly, which is located in the drive box 25 and is connected between the rear rotating block 32 and the front rotating block 28.

[0079] The working principle and beneficial effects of the above technical solution are as follows:

[0080] As the pressure in the atomization chamber 11 continuously increases, the mounting circular plate 20 drives the front rotating block 28 to gradually enter the drive box 25, and the locking drive assembly works, so that the front rotating block 28 and the rear rotating block 32 are integrally arranged. At this time, the first gear ring 29 moves to the position of the free rotation channel 35. In this way, as the pressure of the liquid fire extinguishing agent entering the atomization chamber 11 increases, during the process that the pressure relief head 21 moves further in the direction of contracting the first spring 22, the vertical bar 26 is driven by the mounting horizontal plate 27 to make a settlement movement. At this time, during the settlement process of the second rack 34 installed on the vertical bar 26, it drives the second gear ring 33 meshing with it to rotate, and then drives the rear rotating block 32 connected to the second gear ring 33 in the drive box 25. The rear rotating block 32 drives the deflector 24 connected to the front rotating block 28 through the mounting circular plate 20 to continue rotating through the locking drive assembly. Since the circumference of the second gear ring 33 is larger than that of the first gear ring 29, in this way, when the vertical bar 26 settles, with the cooperation of the second rack 34 and the second gear ring 33, the rotation speed of the rear rotating block 32 becomes faster, thus realizing that the rotation speed of the front rotating block 28 connected to the rear rotating block 32 through the locking drive assembly and the deflector 24 installed on the front rotating block 28 through the mounting circular plate 20 becomes faster. The first gear ring 29 installed on the front rotating block 28 rotates freely at the position of the free rotation channel 35. In this way, the greater the pressure of the liquid fire extinguishing agent entering the atomization chamber 11, the faster the deflector 24 switches to the inclined state. In other words, the greater the pressure of the liquid fire extinguishing agent entering the atomization chamber 11, the greater the inclination of the deflector 24. In this way, the liquid fire extinguishing agent flows in a vortex, the greater the centrifugal force given to the liquid fire extinguishing agent, the greater the centrifugal force attached to the atomized liquid fire extinguishing agent droplets, and the larger the coverage area of the fire area.

[0081] In this way, the atomizing nozzle has two working modes:

[0082] Mode 1: At the beginning, the opening of the valve is small, and the liquid fire extinguishing agent enters the atomization chamber 11 at a small pressure. At this time, the first rack 31 installed on the vertical bar 26 drives the front rotating block 28 to rotate through the first gear ring 29. The deflector 24 gradually changes from the vertical state to the inclined state. As the opening of the valve gradually increases, the pressure of the liquid fire extinguishing agent entering the atomization chamber 11 increases. The first gear ring 29 gradually disengages from the first rack 39 and moves to the idle rotation channel 35. Synchronously, the front rotating block 28 is connected to the rear rotating block 32 through the locking drive assembly. At this time, the second rack 34 installed on the vertical bar 26 drives the rear rotating block 32 to rotate through the second gear ring 33, which increases the rotation speed of the front rotating block 28. At this time, the deflector 24 rotates faster to meet the gradually increasing pressure of the liquid fire extinguishing agent. At this time, the coverage area of the atomized liquid fire extinguishing agent sprayed by the atomizing nozzle gradually increases according to the fire area;

[0083] Mode 2: The valve is instantly opened to the maximum opening, and the pressure in the atomization chamber 11 instantly increases. The connection state between the vertical bar 26 and the front rotating block 28 is instantly converted from the connection of the first gear ring 29 and the first rack 39 to the connection of the second gear ring 33 and the second rack 34. As the vertical bar 26 instantly sinks, under the cooperation of the second gear ring 33 and the second rack 34, the deflector 24 connected to the front rotating block 28 through the mounting circular plate 20 is instantly converted to the inclined state. At this time, the coverage area of the atomized liquid fire extinguishing agent sprayed by the atomizing nozzle instantly increases, and this is used when the fire area is the largest.

[0084] In one embodiment, the upper locking drive assembly includes:

[0085] A locking groove 36, which is opened on the rear rotating block 32 and penetrates through the rear rotating block 32;

[0086] A locking block 37, which is installed at the end of the front rotating block 28 away from the deflector 24;

[0087] A guide rod 38, one end of which penetrates through the locking groove 36 and is installed on the inner wall of the drive box 25, and the other end of the guide rod 38 penetrates through the locking block 37 and extends into the front rotating block 28;

[0088] A second spring 39, which is sleeved on the guide rod 38 and abuts between the locking block 37 and the inner wall of the drive box 25.

[0089] The working principle and beneficial effects of the above technical solutions are:

[0090] As the pressure in the atomization chamber 11 continuously increases, the installation circular plate 20 drives the front rotating block 28 and gradually sends it into the drive box 25. The guide rod 38 gradually extends into the front rotating block 28, the second spring 39 contracts, and the locking block 37 extends into the locking groove 36. In this way, the rear rotating block 32 and the front rotating block 28 are integrally arranged. The vertical strip 26 sinks. When the second rack 34 installed on the vertical strip 26 drives the second gear ring 33 and the rear rotating block 32 connected to the second gear ring 33 to rotate, the front rotating block 28 also rotates together, thereby realizing the faster rotation of the guide plate 24.

[0091] Obviously, the above embodiments are merely examples for clear illustration and not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or variations derived therefrom still fall within the protection scope of the present invention.

Claims

1. An atomizing nozzle for lithium battery box fire protection, comprising a connecting base (10), characterized in that, Further included are: An atomization chamber (11) and a liquid inlet flow channel (12). The atomization chamber (11) is formed within the connection base (10) and communicates with the bottom end of the connection base (10). The liquid inlet flow channel (12) is opened at the top end of the connection base (10) and communicates with the interior of the atomization chamber (11). The nozzle body (13) is installed at the end of the atomization chamber (11) away from the liquid inlet flow channel (12). The nozzle swirl core (14) is installed within the nozzle body (13). The one-way sealing assembly (15) is located within the atomization chamber (11) and abuts between the nozzle body (13) and the liquid inlet flow channel (12); The one-way sealing assembly (15) includes: a pressure relief head (21). A ramp opening is circumferentially formed at the end of the inner wall of the liquid inlet flow channel (12) close to the atomization chamber (11). The pressure relief head (21) seals the ramp opening. A first spring (22) is sleeved on the pressure relief head (21), and the end of the first spring (22) away from the pressure relief head (21) abuts against the end of the nozzle body (13) close to the nozzle swirl core (14); A vortex driving assembly connected to the pressure relief head (21) is installed on the inner wall of the atomization chamber (11) close to the bottom. A plurality of the vortex driving assemblies are circumferentially installed on the inner wall of the atomization chamber (11). The vortex driving assembly includes a guide plate (24), and the guide plate (24) guides the liquid fed into the inner wall of the atomization chamber (11) to flow in a vortex; The vortex driving assembly further includes: a driving box (25) embedded and installed on the inner wall of the atomization chamber (11) close to the bottom. The top end of a vertical bar (26) is connected to the pressure relief head (21) through a mounting cross plate (27). The bottom end of the vertical bar (26) extends into the driving box (25) from the top end thereof. A front rotating block (28) is rotatably installed on the side end of the driving box (25). A first gear ring (29) is located within the driving box (25), and the first gear ring (29) is installed on the front rotating block (28). The guide plate (24) is installed on the end of the front rotating block (28) away from the first gear ring (29) through a mounting circular plate (20). A first rack (31) is installed on the vertical bar (26), and the first rack (31) meshes with the first gear ring (29).

2. The atomizing nozzle for lithium battery box fire protection according to claim 1, wherein Further included are: An installation base (16) integrally formed on the side end of the connection base (10). An installation pressing plate (17) is installed at the bottom end of the installation base (16). A through hole for the bottom end of the connection base (10) to pass through is formed at the center end of the installation pressing plate (17). A buffer rubber pad (18) is clamped between the installation base (16) and the installation pressing plate (17). Four hexagon nuts (19) are arrayedly connected between the installation base (16) and the installation pressing plate (17).

3. The atomizing nozzle for lithium battery box fire protection according to claim 1, characterized in that, An external installation thread (30) is provided at the side end of the connection base (10) close to the top end.

4. The atomizing nozzle for lithium battery box fire protection according to claim 1, characterized in that, The nozzle body (13) is threadedly connected to the inner wall of the atomization chamber (11). O-ring seals (23) are installed on the side end of the nozzle body (13) and the side end of the pressure relief head (21).

5. The atomizing nozzle for lithium battery box fire protection according to claim 1, characterized in that, The vortex driving assembly further includes: a rear rotating block (32) rotatably mounted on the inner wall of the driving box (25) away from the front rotating block (28); a second gear ring (33) mounted on the rear rotating block (32), the circumference of the second gear ring (33) being larger than that of the first gear ring (29); a second rack (34) meshing with the second gear ring (33) mounted on the vertical bar (26); an idle channel (35) for the idle rotation of the first gear ring (29) reserved between the first rack (31) and the second rack (34) on the vertical bar (26); and a locking driving assembly located in the driving box (25) and connected between the rear rotating block (32) and the front rotating block (28).

6. The atomizing nozzle for lithium battery box fire protection according to claim 5, wherein, The locking driving assembly includes: a locking groove (36) formed in the rear rotating block (32), the locking groove (36) penetrating through the rear rotating block (32); a locking block (37) mounted on the end of the front rotating block (28) away from the flow guiding plate (24); one end of a guiding rod (38) penetrating through the locking groove (36) and mounted on the inner wall of the driving box (25); the other end of the guiding rod (38) penetrating through the locking block (37) and extending into the front rotating block (28); and a second spring (39) sleeved on the guiding rod (38) and abutted between the locking block (37) and the inner wall of the driving box (25).

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