Lithium battery fire extinguishing agent spraying device

Abstract

The application relates to the technical field of spraying devices, and discloses a lithium battery fire extinguishing agent spraying device, which solves the problem that manual operation of a fire extinguisher is usually needed to spray fire extinguishing agents when a lithium battery of an existing charging station catches fire, and the response speed of manual fire extinguishing is slow, the lithium battery fire extinguishing agent spraying device comprises a frame, a control panel is fixedly installed at the end of one side of the frame, a conveying belt is installed in the frame, three fire extinguishers are placed on the upper portion of the conveying belt, a pressing valve is fixedly installed at the top of each fire extinguisher, a spray head is fixedly installed on one side of each pressing valve, a bolt is inserted into each pressing valve, a pull ring is fixedly installed at one end of each bolt, supporting legs are fixedly installed at the middle portions of the two sides of the frame, a supporting table is fixedly installed between the top portions of the two supporting legs, a supporting plate is fixedly installed on the top portion of the supporting table through four supporting rods, and a mounting seat is fixedly installed at one end of the top portion of the supporting plate; the lithium battery fire extinguishing agent spraying device has the advantages that the response speed of fire extinguishing is fast when the lithium battery of the charging station catches fire, the flame can be prevented from continuously spreading, and the demand of fire extinguishing and rescue can be met.

Description

Technical Field

[0001] The present invention belongs to the technical field of spray devices, and in particular relates to a lithium battery fire extinguishing agent spray device. Background Art

[0002] A lithium battery is a type of battery that uses lithium metal or lithium alloy as positive and negative electrode materials, typically using a non-aqueous electrolyte solution. Lithium batteries can be divided into two categories: lithium metal batteries and lithium-ion batteries. The working principle of a lithium battery relies on the dynamic migration of lithium ions between the positive and negative electrodes. During charging, lithium ions are deintercalated from the positive electrode and embedded into the negative electrode through the electrolyte, leaving the negative electrode in a lithium-rich state. During discharge, the process is reversed, with lithium ions returning from the negative electrode to the positive electrode, enabling the output and storage of electricity. When batteries are widely used, it is necessary to consider the possibility of battery fires caused by factors such as overcurrent heating caused by loose connectors, overcharging or over-discharging caused by loss of control of the battery management system, and internal or external circuit short circuits caused by external forces. When a lithium battery catches fire at an existing charging station, it is usually necessary to manually operate a fire extinguisher to spray and extinguish the fire. Manual fire extinguishing responds slowly, while lithium battery fires spread quickly, thus failing to meet the needs of firefighting and rescue efforts. Summary of the Invention

[0003] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a lithium battery fire extinguishing agent injection device, which effectively solves the problem in the above background technology that when a lithium battery in the existing charging station catches fire, manual operation of the fire extinguisher is usually required to spray the fire, and the manual fire extinguishing response speed is slow.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a lithium battery fire extinguishing agent injection device, comprising a work frame, a control panel is fixedly installed at the end of one side of the work frame, a conveyor belt is installed inside the work frame, three fire extinguishers are placed on the upper part of the conveyor belt, a press valve is fixedly installed on the top of each fire extinguisher, a nozzle is fixedly installed on one side of the press valve, a latch is plugged into the press valve, a pull ring is fixedly installed at one end of the latch, support legs are fixedly installed at the middle of both sides of the work frame, a support platform is fixedly installed between the tops of the two support legs, and the top of the support platform is connected to the top of the four The support rod is fixedly installed with a support plate, one end of the top of the support plate is fixedly installed with a mounting seat, and a drive motor is fixedly installed on one side of the mounting seat. The output end of the drive motor is provided with a transmission assembly, and a plug rod and an extrusion block are provided under the support platform. The output end of the drive motor is provided with a transmission assembly, and the transmission assembly is connected to the extrusion block and the plug rod. When the drive motor is running, the power is output to the extrusion block and the plug rod through the transmission assembly, so that the plug rod moves down and is inserted into the inside of the pull ring and the pin is pulled out horizontally, and the extrusion block moves down to squeeze the press valve to spray the fire extinguishing agent inside the fire extinguisher onto the lithium battery to extinguish the fire.

[0005] Preferably, the transmission assembly includes a driving bevel gear, which is fixedly mounted on the output end of the driving motor, and the lower part of the surface of the driving bevel gear is meshedly connected with the driven bevel gear, a positioning seat is rotatably mounted on one side of the driving bevel gear, the bottom of the positioning seat is fixedly connected to the top of the support plate, and a rotating shaft is fixedly mounted on the bottom of the driven bevel gear, and the surface of the rotating shaft is rotatably connected to the middle part of the support plate through a bearing.

[0006] Preferably, the bottom of the rotating shaft extends to the lower part of the support plate and is fixedly installed with a threaded rod, the bottom end of the threaded rod is rotatably connected to the top of the support platform, the surface of the threaded rod is threadedly connected to a threaded sleeve, and the surface of the threaded sleeve is fixedly installed with a support arm, and a movable plate is provided at the lower part of the support platform, and one side of the movable plate is fixedly connected to the lower end of the support arm.

[0007] Preferably, a fixing rod is fixedly installed on the side of the surface of the threaded sleeve away from the support arm, an upper sliding sleeve is fixedly installed on one end of the fixing rod, an upper sliding rod is inserted into the interior of the upper sliding sleeve, and the bottom end of the upper sliding rod is fixedly connected to the top of the support platform.

[0008] Preferably, lowering sleeves are fixedly installed at both ends of the surface of the movable plate, lowering rods are inserted into the interiors of the two lowering sleeves, and the tops of the two lowering rods are fixedly connected to the lower side of the support platform.

[0009] Preferably, a mounting tube is fixedly installed in the middle of the bottom of the movable plate, a movable rod is inserted into the lower end of the mounting tube, the bottom end of the movable rod is fixedly connected to the top of the extrusion block, and a telescopic spring is provided inside the mounting tube, and the two ends of the telescopic spring are respectively fixedly connected to the inner top of the mounting tube and the top of the movable rod.

[0010] Preferably, two connecting frames are fixedly installed on one side of the lower part of the movable plate, a rectangular slide rod is fixedly installed between the two connecting frames, one end of the surface of the rectangular slide rod is sleeved with a rectangular slide sleeve, and the bottom of the rectangular slide sleeve is fixedly connected to the top of the insertion rod.

[0011] Preferably, a return spring is sleeved on the other end of the surface of the rectangular slide rod, and the two ends of the two return springs are fixedly connected to one of the connecting frames and the rectangular slide sleeve respectively.

[0012] Preferably, an adjusting rod is fixedly mounted on the upper end of the surface of the insertion rod, the surface of the adjusting rod is in close contact with the limiting strip, and the lower end of the limiting strip is fixedly connected to the other side of the work frame.

[0013] Preferably, a driving cylinder is fixedly installed at one end of both sides of the work frame, the transmission ends of the two driving cylinders extend into the interior of the work frame and are fixedly installed with positioning hoops, and the two positioning hoops are adapted to the fire extinguisher.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] (1) When the lithium battery catches fire, the operator starts the drive motor through the control panel. When the drive motor is running, it drives the active bevel gear to rotate along the positioning seat. When the active bevel gear rotates, it drives the rotating shaft to rotate inside the bearing through the driven bevel gear. When the driven bevel gear rotates, it drives the threaded sleeve to move downward through the threaded rod. When the threaded sleeve moves downward, it drives the upper sliding sleeve to slide along the surface of the upper sliding rod through the fixed rod, thereby increasing the stability of the threaded sleeve when it moves downward. When the threaded sleeve moves downward, it drives the moving plate to move downward through the support arm. When the moving plate moves downward, it drives the two lower sliding sleeves to slide along the surfaces of the two lower sliding rods, thereby increasing the stability of the moving plate when it moves;

[0016] (2) When the moving plate moves downward, it drives the extrusion block to press onto the pressing valve, and drives the insertion rod to insert into the inside of the pull ring. When the moving plate continues to move downward, it drives the installation tube to move downward along the surface of the moving rod, and at the same time squeezes the telescopic spring to contract, so as to ensure that the moving plate moves downward without exerting downward pressure on the extrusion block. When the moving plate continues to move downward, the adjustment rod and the limit strip will cooperate to push the insertion rod to drive the rectangular sliding sleeve to slide and translate along the surface of the rectangular sliding rod, and at the same time squeeze the reset spring, so as to ensure the stability of the movement of the rectangular sliding sleeve while giving it an elastic reset effect. When the insertion rod translates, it will drive the pin away from the pressing valve through the pull ring and release the limit, so that when the extrusion block moves downward, it will squeeze the pressing valve, so that the fire extinguishing agent inside the fire extinguisher will be sprayed onto the lithium battery to extinguish the fire; the entire fire extinguishing process is convenient and fast, which increases the fire extinguishing efficiency;

[0017] (3) When the spraying time preset by the control panel arrives, the control panel will start the two driving cylinders to drive the two positioning hoops to move backward to release the positioning of the fire extinguisher, and then the control panel will start the conveyor belt to drive the subsequent fire extinguisher to move forward, and start the two driving cylinders to drive the two positioning hoops to move toward each other to position the fire extinguisher, and then continue to spray the fire extinguisher to extinguish the fire, thereby improving the fire extinguishing efficiency;

[0018] (4) When a lithium battery in the charging station catches fire, the fire extinguishing response speed is fast, thus preventing the flame from continuing to spread, thereby meeting the needs of fire extinguishing and rescue. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0020] In the attached figure:

[0021] Figure 1 The structure of the lithium battery fire extinguishing agent injection device of the present invention is shown in FIG. Figure 1 ;

[0022] Figure 2The structure of the lithium battery fire extinguishing agent injection device of the present invention is shown in FIG. Figure 2 ;

[0023] Figure 3 The structure of the lithium battery fire extinguishing agent injection device of the present invention is shown in FIG. Figure 3 ;

[0024] Figure 4 The structure of the lithium battery fire extinguishing agent injection device of the present invention is shown in FIG. Figure 4 ;

[0025] Figure 5 This is a schematic diagram of the internal structure of the installation cylinder of the present invention;

[0026] Figure 6 For the present invention Figure 4 A in the middle is an enlarged structural diagram;

[0027] Figure 7 For the present invention Figure 4 The enlarged structural diagram at B in the middle;

[0028] Figure: 1, work frame; 2, control panel; 3, conveyor belt; 4, support leg; 5, support platform; 6, support rod; 7, support plate; 8, mounting base; 9, drive motor; 10, extrusion block; 11, plug rod; 12, fire extinguisher; 13, driving bevel gear; 14, driven bevel gear; 15, positioning base; 16, rotating shaft; 17, bearing; 18, threaded rod; 19, threaded sleeve; 20, fixing rod; 21, upper sliding sleeve ; 22. Upper slide rod; 23. Support arm; 24. Moving plate; 25. Lower sleeve; 26. Lower slide rod; 27. Mounting tube; 28. Moving rod; 29. ​​Telescopic spring; 30. Connecting frame; 31. Rectangular slide rod; 32. Rectangular slide sleeve; 33. Return spring; 34. Adjusting rod; 35. Limiting strip; 36. Nozzle; 37. Press valve; 38. Latch; 39. Pull ring; 40. Driving cylinder; 41. Positioning hoop. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; 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.

[0030] Embodiment 1, by Figures 1 to 7The present invention includes a work frame 1, a control panel 2 is fixedly installed at the end of one side of the work frame 1, a conveyor belt 3 is installed inside the work frame 1, three fire extinguishers 12 are placed on the upper part of the conveyor belt 3, and a press valve 37 is fixedly installed on the top of the fire extinguisher 12, a nozzle 36 is fixedly installed on one side of the press valve 37, a latch 38 is plugged into the press valve 37, and a pull ring 39 is fixedly installed on one end of the latch 38, support legs 4 are fixedly installed on the middle part of both sides of the work frame 1, a support platform 5 is fixedly installed between the tops of the two support legs 4, a support plate 7 is fixedly installed on the top of the support platform 5 through four support rods 6, a mounting seat 8 is fixedly installed on one end of the top of the support plate 7, and a drive motor 9 is fixedly installed on one side of the mounting seat 8;

[0031] A transmission assembly is provided at the output end of the drive motor 9, and an insertion rod 11 and an extrusion block 10 are provided under the support platform 5. The output end of the drive motor 9 is provided with a transmission assembly, and the transmission assembly is connected to the extrusion block 10 and the insertion rod 11. When the drive motor 9 is running, the power is output to the extrusion block 10 and the insertion rod 11 through the transmission assembly, so that the insertion rod 11 moves down and is inserted into the interior of the pull ring 39 and the pin 38 is pulled out horizontally, and the extrusion block 10 moves down to squeeze the pressing valve 37 to spray the fire extinguishing agent inside the fire extinguisher 12 onto the lithium battery for fire extinguishing.

[0032] When the lithium battery catches fire, the operator starts the drive motor 9 through the control panel 2. When the drive motor 9 is running, it drives the transmission component to run. When the transmission component is running, it drives the insertion rod 11 to move down and insert it into the pull ring 39 and pull out the pin 38 horizontally. At the same time, it drives the extrusion block 10 to move down and squeeze the pressing valve 37 to spray the fire extinguishing agent in the fire extinguisher 12 onto the lithium battery to extinguish the fire. The entire fire extinguishing process is convenient and fast, which increases the fire extinguishing efficiency. It makes the fire extinguishing response speed fast when the lithium battery of this charging station catches fire, avoids the continuous spread of flames, and thus meets the needs of fire fighting and rescue.

[0033] Embodiment 2, on the basis of embodiment 1, the transmission assembly includes a driving bevel gear 13, the driving bevel gear 13 is fixedly mounted on the output end of the drive motor 9, the lower part of the surface of the driving bevel gear 13 is meshedly connected with the driven bevel gear 14, one side of the driving bevel gear 13 is rotatably mounted with a positioning seat 15, the bottom of the positioning seat 15 is fixedly connected to the top of the support plate 7, the bottom of the driven bevel gear 14 is fixedly mounted with a rotating shaft 16, and the surface of the rotating shaft 16 is rotatably connected to the middle part of the support plate 7 through a bearing 17;

[0034] When the driving motor 9 is running, it drives the active bevel gear 13 to rotate along the positioning seat 15. When the active bevel gear 13 rotates, it drives the rotating shaft 16 to rotate inside the bearing 17 through the driven bevel gear 14. When the driven bevel gear 14 rotates, it drives the threaded rod 18 to rotate.

[0035] The bottom of the rotating shaft 16 extends to the lower part of the support plate 7 and is fixedly installed with a threaded rod 18. The bottom end of the threaded rod 18 is rotatably connected to the top of the support platform 5. The surface of the threaded rod 18 is threadedly connected to a threaded sleeve 19. The surface of the threaded sleeve 19 is fixedly installed with a support arm 23. A movable plate 24 is provided at the lower part of the support platform 5, and one side of the movable plate 24 is fixedly connected to the lower end of the support arm 23.

[0036] When the threaded rod 18 rotates, it drives the threaded sleeve 19 to move downward. When the threaded sleeve 19 moves downward, the upper sliding sleeve 21 is driven to slide along the surface of the upper sliding rod 22 through the fixed rod 20, thereby increasing the stability of the threaded sleeve 19 when it moves. When the threaded sleeve 19 moves downward, the movable plate 24 is driven downward through the support arm 23.

[0037] A fixed rod 20 is fixedly installed on the side of the surface of the threaded sleeve 19 away from the support arm 23, and an upper sliding sleeve 21 is fixedly installed on one end of the fixed rod 20. An upper sliding rod 22 is inserted into the interior of the upper sliding sleeve 21, and the bottom end of the upper sliding rod 22 is fixedly connected to the top of the support platform 5; lower sliding sleeves 25 are fixedly installed on both ends of the surface of the movable plate 24, and lower sliding rods 26 are inserted into the interior of the two lower sliding sleeves 25, and the tops of the two lower sliding rods 26 are fixedly connected to the lower side of the support platform 5;

[0038] When the threaded sleeve 19 moves downward, the upper sliding sleeve 21 is driven to slide along the surface of the upper sliding rod 22 through the fixed rod 20, thereby increasing the stability of the threaded sleeve 19 when it moves; when the movable plate 24 moves downward, it drives the two lower sleeves 25 to slide along the surfaces of the two lower sliding rods 26, thereby increasing the stability of the movable plate 24 when it moves.

[0039] Embodiment 3, on the basis of embodiment 2, an adjusting rod 34 is fixedly installed on the upper end of the surface of the insertion rod 11, the surface of the adjusting rod 34 is in close contact with the limiting strip 35, and the lower end of the limiting strip 35 is fixedly connected to the other side of the work frame 1; a mounting cylinder 27 is fixedly installed in the middle of the bottom of the movable plate 24, and a moving rod 28 is inserted into the lower end of the mounting cylinder 27. The bottom end of the moving rod 28 is fixedly connected to the top of the extrusion block 10, and a telescopic spring 29 is provided inside the mounting cylinder 27. The two ends of the telescopic spring 29 are respectively fixedly connected to the inner top of the mounting cylinder 27 and the top of the moving rod 28;

[0040] Two connecting frames 30 are fixedly installed on one side of the lower part of the movable plate 24. A rectangular slide rod 31 is fixedly installed between the two connecting frames 30. One end of the surface of the rectangular slide rod 31 is sleeved with a rectangular sliding sleeve 32. The bottom of the rectangular sliding sleeve 32 is fixedly connected to the top of the insertion rod 11. The other end of the surface of the rectangular slide rod 31 is sleeved with a return spring 33. The two ends of the two return springs 33 are respectively fixedly connected to one of the connecting frames 30 and the rectangular sliding sleeve 32.

[0041] When the movable plate 24 moves downward, it drives the extrusion block 10 to press onto the pressing valve 37 and drives the insertion rod 11 to insert into the inside of the pull ring 39. When the movable plate 24 continues to move downward, it drives the installation cylinder 27 to move downward along the surface of the moving rod 28 and at the same time squeezes the telescopic spring 29 to contract, thereby ensuring that the movable plate 24 moves downward while not exerting downward pressure on the extrusion block 10. While the movable plate 24 continues to move downward, the cooperation of the adjusting rod 34 and the limit bar 35 will push the insertion rod 11 to drive the rectangular sliding sleeve 32 to slide and translate along the surface of the rectangular sliding rod 31, and at the same time squeeze the return spring 33, thereby ensuring the movement stability of the rectangular sliding sleeve 32 while giving it an elastic reset effect. When the insertion rod 11 translates, it will drive the pin 38 away from the pressing valve 37 through the pull ring 39 and release the limit, thereby squeezing the pressing valve 37 while the extrusion block 10 moves downward.

[0042] In the fourth embodiment, based on the first embodiment, a driving cylinder 40 is fixedly mounted on one end of each side of the work frame 1. The transmission ends of the two driving cylinders 40 extend into the interior of the work frame 1 and are fixedly mounted with a positioning hoop 41. The two positioning hoop 41 are adapted to the fire extinguisher 12.

[0043] When the spraying time preset by the control panel 2 is reached, the control panel 2 will start the two driving cylinders 40 to drive the two positioning hoops 41 to move backward to release the positioning of the fire extinguisher 12, and then the control panel 2 will start the conveyor belt 3 to drive the subsequent fire extinguisher 12 to move forward, and start the two driving cylinders 40 to drive the two positioning hoops 41 to move toward each other to position the fire extinguisher 12, and then continue to spray the fire extinguisher 12 to extinguish the fire, thereby improving the fire extinguishing efficiency.

[0044] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0045] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A lithium battery fire extinguishing agent spraying device, comprising a frame (1), characterized in that: A control panel (2) is fixedly installed at the end of one side of the work frame (1), a conveyor belt (3) is installed inside the work frame (1), three fire extinguishers (12) are placed on the upper part of the conveyor belt (3), a press valve (37) is fixedly installed on the top of each fire extinguisher (12), a nozzle (36) is fixedly installed on one side of each press valve (37), a latch (38) is plugged into each press valve (37), and a pull ring (39) is fixedly installed at one end of each latch (38), support legs (4) are fixedly installed in the middle of both sides of the work frame (1), a support platform (5) is fixedly installed between the tops of the two support legs (4), and the support platform (5) A support plate (7) is fixedly installed on the top of the support plate (7) through four support rods (6), a mounting seat (8) is fixedly installed on one end of the top of the support plate (7), a drive motor (9) is fixedly installed on one side of the mounting seat (8), a transmission assembly is provided at the output end of the drive motor (9), an insertion rod (11) and an extrusion block (10) are provided below the support platform (5), a transmission assembly is provided at the output end of the drive motor (9), the transmission assembly is connected to the extrusion block (10) and the insertion rod (11), and when the drive motor (9) is running, power is output to the extrusion block (10) and the insertion rod (11) through the transmission assembly, so that the insertion rod (11) moves downward and is inserted into the pull ring (39) and pull out the pin (38) by translation, and make the extrusion block (10) move downward to squeeze the pressing valve (37) to spray the fire extinguishing agent inside the fire extinguisher (12) onto the lithium battery to extinguish the fire. The lower part of the support platform (5) is provided with a movable plate (24), and two connecting frames (30) are fixedly installed on one side of the lower part of the movable plate (24). A rectangular slide rod (31) is fixedly installed between the two connecting frames (30). One end of the surface of the rectangular slide rod (31) is provided with a rectangular slide sleeve (32), the bottom of the rectangular slide sleeve (32) is fixedly connected to the top of the plug rod (11), and the other end of the surface of the rectangular slide rod (31) is provided with a reset spring. Spring (33), the two ends of the two return springs (33) are fixedly connected to one of the connecting frames (30) and the rectangular sliding sleeve (32), the upper end of the surface of the insertion rod (11) is fixedly installed with an adjusting rod (34), the surface of the adjusting rod (34) is tightly attached to the limiting strip (35), the lower end of the limiting strip (35) is fixedly connected to the other side of the work frame (1), one end of both sides of the work frame (1) is fixedly installed with a driving cylinder (40), the transmission ends of the two driving cylinders (40) extend to the interior of the work frame (1) and are fixedly installed with a positioning hoop (41), and the two positioning hoops (41) are both adapted to the fire extinguisher (12).

2. A lithium battery fire extinguishing agent spraying device according to claim 1, characterized in that: The transmission assembly includes a driving bevel gear (13), which is fixedly mounted on the output end of the driving motor (9), and a driven bevel gear (14) is meshedly connected to the lower portion of the surface of the driving bevel gear (13). A positioning seat (15) is rotatably mounted on one side of the driving bevel gear (13), and the bottom of the positioning seat (15) is fixedly connected to the top of the support plate (7). A rotating shaft (16) is fixedly mounted on the bottom of the driven bevel gear (14), and the surface of the rotating shaft (16) is rotatably connected to the middle portion of the support plate (7) through a bearing (17).

3. A lithium battery fire extinguishing agent spraying device according to claim 2, characterized in that: The bottom of the rotating shaft (16) extends to the lower part of the support plate (7) and is fixedly mounted with a threaded rod (18). The bottom end of the threaded rod (18) is rotatably connected to the top of the support platform (5). The surface of the threaded rod (18) is threadedly connected to a threaded sleeve (19). The surface of the threaded sleeve (19) is fixedly mounted with a support arm (23). One side of the movable plate (24) is fixedly connected to the lower end of the support arm (23).

4. A lithium battery fire extinguishing agent spraying device according to claim 3, characterized in that: A fixed rod (20) is fixedly mounted on the side of the surface of the threaded sleeve (19) away from the support arm (23), an upper sliding sleeve (21) is fixedly mounted on one end of the fixed rod (20), an upper sliding rod (22) is inserted into the interior of the upper sliding sleeve (21), and the bottom end of the upper sliding rod (22) is fixedly connected to the top of the support platform (5).

5. The lithium battery fire extinguishing agent spraying device according to claim 3, characterized in that: Lower sleeves (25) are fixedly mounted at both ends of the surface of the movable plate (24), lower slide rods (26) are inserted into the interiors of the two lower sleeves (25), and the tops of the two lower slide rods (26) are fixedly connected to the lower side of the support platform (5).

6. The lithium battery fire extinguishing agent spraying device according to claim 3, characterized in that: A mounting cylinder (27) is fixedly mounted in the middle of the bottom of the movable plate (24), a movable rod (28) is inserted into the lower end of the mounting cylinder (27), the bottom end of the movable rod (28) is fixedly connected to the top of the extrusion block (10), a telescopic spring (29) is provided inside the mounting cylinder (27), and the two ends of the telescopic spring (29) are respectively fixedly connected to the inner top of the mounting cylinder (27) and the top of the movable rod (28).

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