Miniature automatic fire extinguishing device suitable for electric vehicle charging pile

Abstract

The invention relates to the technical field of charging pile fire extinguishing, and discloses a miniature automatic fire extinguishing device suitable for an electric vehicle charging pile, the miniature automatic fire extinguishing device comprises two stand columns which are symmetrically distributed left and right, a moving assembly is arranged between the two stand columns, and a lubricating assembly located on the outer side of the moving assembly is arranged at the top of the moving assembly; an adjusting mechanism is arranged at the bottom of the moving assembly, an outer box extending to the bottom of the adjusting mechanism is arranged on the inner side of the adjusting mechanism, a fixing mechanism extending to the bottom of the outer box is arranged on the inner side of the outer box, and a fire extinguishing mechanism attached to the fixing mechanism is arranged on the inner side of the outer box; according to the miniature automatic fire extinguishing device suitable for the electric vehicle charging pile, the purpose of adjusting the fire extinguishing angle is achieved through the arrangement of the adjusting mechanism, and the purpose of conveniently replacing fire extinguishing equipment is achieved through the arrangement of the fixing mechanism and the fire extinguishing mechanism.

Description

Technical Field

[0001] This invention relates to the field of fire extinguishing technology for charging piles, specifically a miniature automatic fire extinguishing device suitable for electric vehicle charging piles. Background Technology

[0002] A search revealed Chinese Patent Publication No. CN118121878A, which discloses a fire extinguishing device for electric vehicle charging piles, including an electric vehicle charging station. This invention, by setting up a displacement component and a dry powder fire extinguishing unit, enables the electric vehicle charging pile fire extinguishing device to drive the dry powder fire extinguishing unit to move, locate the fire position, and then extinguish the fire, ensuring the overall fire extinguishing efficiency of the device. The displacement guide rail, combined with the external shape of the dry powder fire extinguishing unit, ensures the stability of the dry powder fire extinguishing unit during movement. Simultaneously, the driving screw further enhances the positioning accuracy of the dry powder fire extinguishing unit during movement, shortens the distance between the dry powder fire extinguishing unit and the fire source, and further improves the overall fire extinguishing effect of the device. The existing technical solutions described above have the following drawbacks: while the fire extinguishing unit can be displaced and adjusted, the angle is fixed, making it inconvenient to adjust the fire extinguishing angle as needed. Furthermore, it is inconvenient to quickly disassemble and replace the fire extinguishing equipment within the fire extinguishing unit; replacing the fire extinguishing equipment is inconvenient and requires additional tools, which is time-consuming and labor-intensive. Therefore, this invention proposes a miniature automatic fire extinguishing device suitable for electric vehicle charging piles to solve the aforementioned problems. Summary of the Invention

[0003] Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a miniature automatic fire extinguishing device suitable for electric vehicle charging stations, which has the advantages of adjustable fire extinguishing angle and easy replacement of fire extinguishing equipment, thus solving the problems mentioned in the background art.

[0004] (II) Technical Solution To achieve the aforementioned goal of adjustable fire extinguishing angle and easy replacement of fire extinguishing equipment, the present invention provides the following technical solution: a miniature automatic fire extinguishing device suitable for electric vehicle charging piles, comprising two columns symmetrically distributed on the left and right sides, a movable component disposed between the two columns, a lubrication component located on the outer side of the top of the movable component, an adjustment mechanism disposed at the bottom of the movable component, an outer box extending to the bottom of the inner side of the adjustment mechanism, a fixing mechanism extending to the bottom of the outer box, a fire extinguishing mechanism fitted to the fixing mechanism disposed on the inner side of the outer box, a top plate fitted to the fire extinguishing mechanism disposed on the inner side of the outer box, and a side plate fitted to the inner wall of the outer box fixedly installed at the bottom of the top plate; The moving component includes an electric slide rail, which is fixedly installed between the two columns. An electric slider is slidably installed on the outer side of the electric slide rail, and a connecting seat is fixedly installed on the bottom of the electric slider.

[0005] Preferably, the lubrication assembly includes an oil reservoir, an oil reservoir is fixedly installed on the top of the electric slider, a fixing frame is fixedly installed on the left side of the oil reservoir, an oil outlet ring fitted around the outside of the electric slide rail is fixedly installed at the bottom of the fixing frame, a brush that fits against the outside of the electric slide rail is fixedly installed on the inner side of the oil outlet ring, and a connecting pipe that communicates with the inner top wall of the oil outlet ring is fixedly installed on the left side of the inner wall of the oil reservoir.

[0006] Preferably, the adjustment mechanism includes a mounting box, which is fixedly mounted on the bottom of the connecting seat. A rotating shaft extending to the bottom of the mounting box is rotatably connected to the inner top wall of the mounting box. A driven gear located inside the mounting box is fixedly mounted on the outer side of the rotating shaft. A servo motor is fixedly mounted on the inner top wall of the mounting box. A driving gear meshing with the driven gear is fixedly mounted on the output shaft of the servo motor. A U-shaped frame is fixedly mounted on the bottom of the rotating shaft. A limit guide rail is fixedly mounted on the bottom of the mounting box. Four limit guide rails extending into the limit guide rails are fixedly mounted on the top of the U-shaped frame. The U-shaped frame has a vertical pole that is slidably connected to the side. Support rods are fixedly installed between the left and right sides of the inner wall of the U-shaped frame. A rotating plate is rotatably connected to the outer side of the support rod. The outer box is fixedly installed at the bottom of the rotating plate and located inside the U-shaped frame. The top plate is set on the inner top wall of the outer box. A rectangular plate located inside the U-shaped frame is fixedly installed on the top of the outer box. An electric push rod is fixedly installed on the rear side of the inner top wall of the U-shaped frame. A U-shaped plate located outside the rectangular plate is fixedly installed at the output end of the electric push rod. A round rod that penetrates the rectangular plate and is slidably connected to the inner side of the U-shaped plate is fixedly installed.

[0007] Preferably, the fixing mechanism includes a movable frame. Two movable frames extending to the bottom of the outer box are slidably installed on the inner side of the outer box. The two movable frames are symmetrically distributed from left to right. A handle is fixedly installed between the bottoms of the two movable frames. Two connecting springs are fixedly installed on both the left and right sides of the inner wall of the outer box. Support blocks that are slidably connected to the bottom wall of the outer box are fixedly installed on the opposite sides of the connecting springs on both sides. Wedge blocks are fixedly installed on the opposite sides of the two support blocks. A push plate that is slidably connected to the top of the wedge block is fixedly installed at one end of the movable frame.

[0008] Preferably, the fire extinguishing mechanism includes a fire extinguisher body, which is located inside the outer box and placed on top of two support blocks. The fire extinguisher body is attached to the bottom of the top plate, the side plate is attached to the rear side of the fire extinguisher body, and a nozzle is movably installed on the front side of the fire extinguisher body.

[0009] Preferably, rectangular holes are provided on both the left and right sides of the inner wall of the outer box, a through hole is provided on the inner bottom wall of the outer box, the front and rear sides of the inner wall of the outer box are open, the two support blocks are symmetrically distributed from left to right, and limiting holes adapted to the moving trajectory of the moving frame are provided on both the left and right sides of the inner wall of the outer box.

[0010] Preferably, the bottom of the top plate is arc-shaped, and the inner side of the rectangular plate has a slot, the size of which is adapted to the movement trajectory of the round rod and is inclined.

[0011] Preferably, the inner bottom wall of the mounting box is provided with a circular hole adapted to the rotating shaft, and the inner side of the limiting guide rail is provided with an annular hole adapted to the moving trajectory of the upright.

[0012] Preferably, the inner sidewall of the oil outlet ring is provided with an oil outlet hole. The size and number of the oil outlet holes can be set according to the requirements. The oil outlet holes are distributed in a ring at equal intervals. The inner top wall of the oil outlet ring is provided with an installation circular hole that is compatible with the connecting pipe.

[0013] (III) Beneficial Effects Compared with the prior art, the present invention provides a miniature automatic fire extinguishing device suitable for electric vehicle charging piles, which has the following beneficial effects: 1. This miniature automatic fire extinguishing device, applicable to electric vehicle charging stations, features an adjustment mechanism. When the servo motor starts, the driving gear drives the driven gear to rotate, which in turn rotates the shaft. A U-shaped frame is fixedly installed at the bottom of the shaft. Supported by the uprights and limit rails, the U-shaped frame rotates with the shaft, thus changing the left-right alignment of the outer box. When the electric push rod extends or retracts, it moves the U-shaped plate, and the round rod slides within the slots of the rectangular plate. Due to the inclined design of the slots, the rectangular plate is pushed, causing the outer box to rotate around the support rod, thus adjusting the angle of the outer box in the pitch direction. Through left-right and pitch angle adjustments, the fire extinguishing device can be accurately aimed at the area requiring fire extinguishing, achieving the purpose of adjustable fire extinguishing angle.

[0014] 2. This miniature automatic fire extinguishing device, applicable to electric vehicle charging stations, features a fixed mechanism and a fire extinguishing mechanism. Two movable frames are slidably installed inside the outer casing and are symmetrically distributed. A handle is fixed between the bottoms of the two movable frames for easy manual operation. When the fire extinguisher body needs to be replaced, the operator holds the handle and pulls the two movable frames downwards. The movable frames drive the push plate downwards, which presses against the wedge-shaped blocks, causing the two support blocks to move towards opposite sides against the force of the connecting spring. This increases the distance between the two support blocks. After placing the fire extinguisher body on top of the two support blocks, the handle is released. Under the force of the connecting spring, the two support blocks move towards opposite sides, thus clamping and fixing the fire extinguisher body. This facilitates the replacement of the fire extinguishing equipment. The fire extinguisher body is placed on top of the two support blocks and fits against the bottom of the top plate. The side plate fits against the rear of the fire extinguisher body, providing a certain degree of limitation and protection. When a fire occurs, the nozzle on the front of the fire extinguisher body will spray extinguishing agent to extinguish the fire. Attached Figure Description

[0015] Figure 1 This is a three-dimensional view of the structure of the present invention; Figure 2 This is a perspective cross-sectional view of a portion of the structure of the present invention; Figure 3 This is a left-side sectional perspective view of the lubrication assembly of the present invention; Figure 4 This is a sectional perspective view of the adjustment mechanism of the present invention; Figure 5 This is a rear perspective view of the adjustment mechanism of the present invention; Figure 6 This is a partial cross-sectional perspective view of the adjustment mechanism of the present invention; Figure 7 This is a bottom perspective view of the fixing mechanism of the present invention; Figure 8 This is a sectional perspective view of the fixing mechanism of the present invention.

[0016] In the diagram: 1. Column, 2. Moving component, 21. Electric slide rail, 22. Electric slider, 23. Connecting seat, 3. Lubrication component, 31. Oil tank, 32. Fixing frame, 33. Oil outlet ring, 34. Brush, 35. Connecting pipe, 4. Adjustment mechanism, 401. Mounting box, 402. Rotary shaft, 403. Driven gear, 404. Servo motor, 405. Drive gear, 406. U-shaped frame, 407. Limiting guide rail, 408. Upright pole, 409. Support rod, 410. Rotating plate, 411. Rectangular plate, 412. Electric push rod, 413. U-shaped plate, 414. Round rod, 5. Outer box, 6. Fixing mechanism, 61. Moving frame, 62. Handle, 63. Connecting spring, 64. Support block, 65. Wedge block, 66. Push plate, 7. Fire extinguishing mechanism, 71. Fire extinguisher body, 72. Nozzle, 8. Top plate, 9. Side plate. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figure 1-8 The present invention provides a technical solution: a miniature automatic fire extinguishing device suitable for electric vehicle charging piles, including two columns 1, which are symmetrically distributed from left to right. A moving component 2 is arranged between the two columns 1. A lubrication component 3 is arranged on the top of the moving component 2 and on its outer side. An adjustment mechanism 4 is arranged at the bottom of the moving component 2. An outer box 5 extending to its bottom is arranged on the inner side of the adjustment mechanism 4. A fixing mechanism 6 extending to its bottom is arranged on the inner side of the outer box 5. A fire extinguishing mechanism 7 that fits into the fixing mechanism 6 is arranged on the inner side of the outer box 5. A top plate 8 that fits into the fire extinguishing mechanism 7 is arranged on the inner side of the outer box 5. A side plate 9 that fits into the inner wall of the outer box 5 is fixedly installed at the bottom of the top plate 8.

[0019] The column 1 serves as the supporting foundation for the entire device. It is symmetrically distributed on the left and right sides, providing a stable installation position for other components. This ensures that the device can be placed stably near the charging pile and can withstand the weight of each component and the forces generated during operation.

[0020] The movable component 2 includes an electric slide rail 21, which is fixedly installed between two columns 1. An electric slider 22 is slidably installed on the outside of the electric slide rail 21, and a connecting seat 23 is fixedly installed on the bottom of the electric slider 22.

[0021] When it is necessary to adjust the horizontal position of the fire extinguishing device, the movement of the electric slider 22 on the electric slide rail 21 is controlled, which drives the connecting seat 23 and other components connected to the connecting seat 23 to move horizontally together, thereby realizing the adjustment of the horizontal position of the fire extinguishing device.

[0022] The lubrication assembly 3 includes an oil reservoir 31. The oil reservoir 31 is fixedly installed on the top of the electric slide rail 22. A fixing bracket 32 ​​is fixedly installed on the left side of the oil reservoir 31. An oil outlet ring 33, which is sleeved on the outside of the electric slide rail 21, is fixedly installed on the bottom of the fixing bracket 32. A brush 34, which is in contact with the outside of the electric slide rail 21, is fixedly installed on the inner side of the oil outlet ring 33. A connecting pipe 35, which is connected to the inner top wall of the oil outlet ring 33, is fixedly installed on the left side of the inner wall of the oil reservoir 31.

[0023] The inner wall of the oil outlet ring 33 is provided with oil outlet holes. The size and number of oil outlet holes can be set according to the requirements. The oil outlet holes are distributed in a ring at equal intervals. The inner top wall of the oil outlet ring 33 is provided with mounting holes that are compatible with the connecting pipe 35.

[0024] An oil reservoir 31 is installed on top of the electric slider 22 to store lubricating oil. A connecting pipe 35 connects the oil reservoir 31 to the inner top wall of the oil outlet ring 33, allowing lubricating oil to flow from the oil reservoir 31 into the oil outlet ring 33. The oil outlet ring 33 is fitted around the outside of the electric slide rail 21, and its inner side wall has oil outlet holes that are evenly distributed in a ring. When the electric slider 22 slides on the electric slide rail 21, the brush 34 on the inner side of the oil outlet ring 33 is in contact with the outer side of the electric slide rail 21, and the lubricating oil flows out from the oil outlet holes and is applied to the outer side of the electric slide rail 21 by the brush 34. This lubricates the contact surface between the electric slide rail 21 and the electric slider 22, reduces friction, ensures the smooth sliding of the electric slider 22, and extends the service life of the equipment.

[0025] The adjustment mechanism 4 includes a mounting box 401. The mounting box 401 is fixedly mounted on the bottom of the connecting seat 23. A rotating shaft 402 extending to the bottom of the mounting box 401 is rotatably connected to the inner top wall of the mounting box 401. A driven gear 403 located inside the mounting box 401 is fixedly mounted on the outer side of the rotating shaft 402. A servo motor 404 is fixedly mounted on the inner top wall of the mounting box 401. A driving gear 405 meshing with the driven gear 403 is fixedly mounted on the output shaft of the servo motor 404. A U-shaped frame 406 is fixedly mounted on the bottom of the rotating shaft 402. A limit guide rail 407 is fixedly mounted on the bottom of the mounting box 401. Four limit guide rails extending to the inner side of the limit guide rail 407 are fixedly mounted on the top of the U-shaped frame 406. The upright 408 is slidably connected to it. A support rod 409 is fixedly installed between the left and right sides of the inner wall of the U-shaped frame 406. A rotating plate 410 is rotatably connected to the outside of the support rod 409. The outer box 5 is fixedly installed at the bottom of the rotating plate 410 and located inside the U-shaped frame 406. The top plate 8 is set on the inner top wall of the outer box 5. A rectangular plate 411 located inside the U-shaped frame 406 is fixedly installed on the top of the outer box 5. An electric push rod 412 is fixedly installed on the rear side of the inner top wall of the U-shaped frame 406. A U-shaped plate 413 located outside the rectangular plate 411 is fixedly installed at the output end of the electric push rod 412. A round rod 414 that penetrates the rectangular plate 411 and is slidably connected to it is fixedly installed on the inner side of the U-shaped plate 413.

[0026] The bottom of the top plate 8 is arc-shaped. The inner side of the rectangular plate 411 has a slotted hole. The size of the slotted hole is adapted to the movement trajectory of the round rod 414 and is inclined. The inner bottom wall of the mounting box 401 has a round hole adapted to the rotating shaft 402. The inner side of the limiting guide rail 407 has an annular hole adapted to the movement trajectory of the upright rod 408.

[0027] Mounting box 401 provides mounting space and support for other components of the adjustment mechanism 4, protecting internal gears, motors, and other components from external environmental influences. Rotating shaft 402 is a key component of the adjustment mechanism 4 for angle adjustment. Its rotation drives the U-shaped frame 406, thereby changing the horizontal angle of the outer box 5. Driven gear 403 meshes with driving gear 405. Driven by driving gear 405, the shaft rotates, thus transmitting power and adjusting the angle, providing the necessary power for angle adjustment. The drive gear 405 on its output shaft meshes with the driven gear 403. By controlling the rotation of the servo motor 404, the rotation angle of the rotating shaft 402 can be precisely controlled, thereby achieving precise adjustment of the horizontal angle of the fire extinguishing device. The U-shaped frame 406 serves as a structure for supporting and connecting other components. Support rods 409 are fixedly installed between the left and right sides of its inner wall. A rotating plate 410 is rotatably connected to the outside of the support rods 409. The outer box 5 is fixedly installed at the bottom of the rotating plate 410. The angle of the outer box 5 can be adjusted by rotating and tilting the U-shaped frame 406. The limiting guide rail 407 provides a sliding track for the uprights 408, limiting the movement trajectory of the uprights 408, ensuring the stability of the U-shaped frame 406 during rotation, and preventing it from shaking or deviating. There are four uprights 408, which are fixedly installed on the top of the U-shaped frame 406 and extend to the inside of the limiting guide rail 407 for sliding connection. When the U-shaped frame 406 rotates, the upright 408 slides within the limiting guide rail 407, providing stability and guidance. The support rod 409 provides rotational support for the rotating plate 410, allowing the rotating plate 410 to rotate around the support rod 409. This enables the outer box 5 to adjust its angle in the pitch direction. By rotating the rotating plate 410 around the support rod 409, the outer box 5 adjusts its angle in the pitch direction, ensuring that the nozzle 72 of the fire extinguisher body 71 can accurately aim at the fire location. The rectangular plate 411 has a slotted hole on its inner side, through which the round rod 414 passes and is slidably connected. Under the action of the electric push rod 412... The round rod 414 slides within the slot, pushing the rectangular plate 411 to rotate the outer box 5 around the support rod 409, thus adjusting the pitch angle. The electric push rod 412, through its telescopic movement, moves the U-shaped plate 413, causing the round rod 414 to slide within the slot of the rectangular plate 411, thus adjusting the pitch angle of the outer box 5. Under the push of the electric push rod 412, the U-shaped plate 413 moves the round rod 414, thereby pushing the rectangular plate 411. The round rod 414 converts the linear motion of the electric push rod 412 into the rotation of the rectangular plate 411, thus adjusting the pitch of the outer box 5.

[0028] The fixing mechanism 6 includes a movable frame 61. Two movable frames 61 are slidably installed on the inner side of the outer box 5 and extend to its bottom. The two movable frames 61 are symmetrically distributed on the left and right sides. A handle 62 is fixedly installed between the bottom of the two movable frames 61. Two connecting springs 63 are fixedly installed on the left and right sides of the inner wall of the outer box 5. Support blocks 64 that are slidably connected to the inner bottom wall of the outer box 5 are fixedly installed on the opposite sides of the connecting springs 63 on the left and right sides. Wedge blocks 65 are fixedly installed on the opposite sides of the two support blocks 64. A push plate 66 that is slidably connected to the top of the wedge block 65 is fixedly installed at one end of the movable frame 61.

[0029] Rectangular holes are provided on both the left and right sides of the inner wall of the outer box 5. A through hole is provided on the inner bottom wall of the outer box 5. The front and rear sides of the inner wall of the outer box 5 are open. The two support blocks 64 are symmetrically distributed on the left and right sides. Limiting holes adapted to the moving trajectory of the moving frame 61 are provided on both the left and right sides of the inner wall of the outer box 5.

[0030] There are two movable frames 61, which are slidably installed inside the outer box 5 and extend to its bottom. They are symmetrically distributed on the left and right. By moving them, the push plate 66 can be moved, thereby pushing the wedge block 65 and the support block 64 to move, so as to realize the clamping and releasing operation of the fire extinguisher body 71. The handle 62 makes it convenient for the operator to manually operate the movable frame 61. By gripping the handle 62 and moving it inward or outward, the relative movement of the two moving frames 61 can be controlled, enabling the installation and removal of the fire extinguisher body 71. The connecting spring 63 provides elasticity to the support block 64, allowing the support block 64 to remain in a certain position when not subjected to external force. At the same time, after releasing the handle 62, the support block 64 can be pulled back, achieving automatic clamping of the fire extinguisher body 71. The support block 64 moves under the action of the moving frames 61 and the push plate 66, achieving clamping and support of the fire extinguisher body 71, ensuring that the fire extinguisher body 71 is stably placed in the device. When the push plate 66 moves, by squeezing the inclined surface of the wedge block 65, the support block 64 overcomes the elasticity of the connecting spring 63 and moves to the opposite or opposite side, achieving clamping and releasing of the fire extinguisher body 71. The push plate 66 is slidably connected to the top of the wedge block 65. Driven by the movable frame 61, it moves, pushing the wedge block 65 to move, thereby moving the support block 64 and completing the fixing operation of the fire extinguisher body 71.

[0031] The fire extinguishing mechanism 7 includes a fire extinguisher body 71, which is located inside the outer box 5 and placed on top of two support blocks 64. The fire extinguisher body 71 is attached to the bottom of the top plate 8, and the side plate 9 is attached to the rear side of the fire extinguisher body 71. A nozzle 72 is movably installed on the front side of the fire extinguisher body 71.

[0032] The device integrates infrared temperature sensors, smoke sensors, and flame sensors to monitor the charging pile's temperature, smoke concentration, and flame signals in real time. When the detector detects an anomaly (such as temperature > 50℃, smoke concentration exceeding the threshold, or flame signal), it immediately transmits the signal to the intelligent control host (such as the servo motor 404 or independent control unit inside the mounting box 401). The host analyzes the fire risk level through algorithms, confirms the fire, and initiates the fire extinguishing procedure. Simultaneously, it cuts off the charging pile's power supply (through an emergency power-off system) to prevent short circuits. A solenoid valve directly controls the release port of the fire extinguisher body 71. A fire signal triggers the solenoid valve to open, allowing the extinguishing agent to be sprayed out through the nozzle 72 under pressure. The fire extinguisher body 71 contains a spring mechanism; a fire signal triggers the spring to release, pushing the piston or diaphragm to extinguish the fire. The extinguishing nozzle 72, similar to a traditional automatic sprinkler system, may contain a built-in heat-sensitive glass bulb (liquid-filled expansion type). When the heat of the flame causes the glass bulb to reach the rupture threshold (e.g., 68°C), the glass bulb ruptures, releasing the extinguishing agent. The extinguishing agent (e.g., perfluorohexanone) vaporizes rapidly after being sprayed out, absorbing a large amount of heat and reducing the temperature of the fire source to below the ignition point. The extinguishing agent covers the surface of the fire source, forming an isolation layer that blocks the oxygen supply and suffocates the flame. The chemical components in the ultrafine dry powder or thermal aerosol react with the free radicals in the flame, interrupting the combustion chain and extinguishing the flame. The main body 71 of the fire extinguisher is designed to be disposable or refillable, ensuring that sufficient extinguishing agent is continuously sprayed in the early stages of a fire. The system supports 5G and WiFi remote management, and fire information is synchronized to the property management or fire platform for easy manual intervention or secondary confirmation of the fire situation.

[0033] When using the device, fix the two uprights 1 at a suitable distance near the electric vehicle charging station, ensuring a secure and stable installation. Fix the electric slide rail 21 between the two uprights 1 and connect the power supply and control system. Install the moving assembly 2, lubrication assembly 3, adjustment mechanism 4, and outer box 5 in sequence. When installing the outer box 5, ensure that all components in the adjustment mechanism 4 are correctly connected and can properly perform angle and pitch adjustments. The operator holds the handle 62 and presses down on the two moving frames 61 to increase the distance between the two support blocks 64. Place the fire extinguisher body 71 on top of the two support blocks 64, ensuring the fire extinguisher body 71 is placed stably and the nozzle 72 is facing the direction of potential fire. Release the handle 62; under the elastic force of the connecting spring 63, the two support blocks 64 clamp and fix the fire extinguisher body 71. Connect the power supply and start the electric slide rail 21. Check whether the electric slider 22 slides smoothly on the electric slide rail 21. Observe whether the lubrication component 3 is dispensing oil normally. Operate the servo motor 404 and electric push rod 412 to check whether the adjustment mechanism 4 can adjust the angle and pitch angle of the outer box 5 normally, ensuring that the nozzle 72 of the fire extinguisher body 71 can accurately aim at the area that needs to be extinguished. Check whether the fixing mechanism 6 is firmly fixed to the fire extinguisher body 71 to prevent the fire extinguisher body 71 from shaking or falling off during use. Regularly check the amount of lubricating oil in the oil tank 31 of the lubrication component 3 and add lubricating oil in time to ensure the lubrication effect. Regularly check whether the connection of each component in the adjustment mechanism 4 is loose, and whether the servo motor 404 and electric push rod 412 are working normally. If there is any abnormality, repair or replace it in time. Regularly check the elasticity of the connecting spring 63 in the fixing mechanism 6 to ensure that the support block 64 can clamp the fire extinguisher body 71 normally. Regularly check the pressure, expiration date, etc. of the fire extinguisher body 71 to ensure that it is in good working condition. If any problems are found, replace the fire extinguisher body 71 in time.

[0034] When a fire occurs at an electric vehicle charging station, the control system of this miniature automatic fire extinguishing device (which can be linked with the fire monitoring system of the charging station) will automatically start. According to the location of the fire, the electric slide rail 21 is controlled to move the electric slider 22 to a suitable position. At the same time, the adjustment mechanism 4 adjusts the angle and pitch angle of the outer box 5 so that the nozzle 72 of the fire extinguisher body 71 is accurately aimed at the fire location. Then, the fire extinguisher body 71 sprays the extinguishing agent to extinguish the fire. If the automatic control system malfunctions, the operator can also manually operate the device by controlling the electric slide rail 21, servo motor 404 and electric push rod 412 to aim the fire extinguisher body 71 at the fire location to extinguish the fire.

[0035] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0036] In summary, this miniature automatic fire extinguishing device suitable for electric vehicle charging stations, through the setting of the adjustment mechanism 4, when the servo motor 404 is started, the driving gear 405 drives the driven gear 403 to rotate, thereby causing the rotating shaft 402 to rotate. A U-shaped frame 406 is fixedly installed at the bottom of the rotating shaft 402. Supported by the upright 408 and the limiting guide rail 407, the U-shaped frame 406 rotates with the rotating shaft 402, thereby changing the left and right alignment of the outer box 5. When the electric push rod 412 extends or retracts, it will drive the U-shaped plate 413 to move, and the round rod 414 is inside the slot of the rectangular plate 411. The sliding mechanism, due to the inclined design of the perforation, pushes the rectangular plate 411 to rotate the outer box 5 around the support rod 409, thereby adjusting the angle of the outer box 5 in the pitch direction. Through left-right and pitch angle adjustments, the fire extinguishing device can be accurately aimed at the area requiring fire suppression, achieving adjustable extinguishing angle. By setting a fixing mechanism 6 and an extinguishing mechanism 7, two movable frames 61 are slidably installed inside the outer box 5 and symmetrically distributed left and right. A handle 62 is fixed between the bottoms of the two movable frames 61, facilitating manual operation by the operator. When it is necessary to replace or install the fire extinguisher... When the fire extinguisher body 71 is in position, the operator holds the handle 62 and pulls down the two movable frames 61. The movable frames 61 drive the push plate 66 to move downwards, and the push plate 66 presses against the wedge block 65, causing the two support blocks 64 to move towards opposite sides against the elastic force of the connecting spring 63. At this time, the distance between the two support blocks 64 increases. After placing the fire extinguisher body 71 on top of the two support blocks 64, the operator releases the handle 62. Under the elastic force of the connecting spring 63, the two support blocks 64 move towards opposite sides, thereby clamping and fixing the fire extinguisher body 71, achieving the purpose of facilitating the replacement of fire extinguishing equipment. The fire extinguisher body 71 is placed on top of two support blocks 64 and is attached to the bottom of the top plate 8. The side plate 9 is attached to the rear side of the fire extinguisher body 71, which provides a certain degree of limitation and protection for the fire extinguisher body 71. When a fire occurs, the nozzle 72 on the front side of the fire extinguisher body 71 will spray extinguishing agent to extinguish the fire. This solves the problems that the fire extinguishing unit can be moved and adjusted, but the angle is fixed, making it inconvenient to adjust the extinguishing angle as needed. In addition, it is inconvenient to quickly disassemble and replace the fire extinguishing equipment in the fire extinguishing unit. Replacing the fire extinguishing equipment is inconvenient and requires the use of other tools, which is time-consuming and laborious.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A miniature automatic fire extinguishing device suitable for electric vehicle charging piles, comprising two columns (1) arranged symmetrically on the left and right sides, a movable component (2) disposed between the two columns (1), and a lubrication component (3) disposed on the top of the movable component (2) on its outer side, characterized in that: The bottom of the movable component (2) is provided with an adjustment mechanism (4), the inner side of the adjustment mechanism (4) is provided with an outer box (5) extending to its bottom, the inner side of the outer box (5) is provided with a fixing mechanism (6) extending to its bottom, the inner side of the outer box (5) is provided with a fire extinguishing mechanism (7) that fits with the fixing mechanism (6), the inner side of the outer box (5) is provided with a top plate (8) that fits with the fire extinguishing mechanism (7), and the bottom of the top plate (8) is fixedly installed with a side plate (9) that fits with the inner wall of the outer box (5). The moving component (2) includes an electric slide rail (21), which is fixedly installed between the two columns (1). An electric slider (22) is slidably installed on the outside of the electric slide rail (21), and a connecting seat (23) is fixedly installed at the bottom of the electric slider (22).

2. A miniature automatic fire extinguishing device suitable for electric vehicle charging piles according to claim 1, characterized in that: The lubrication assembly (3) includes an oil reservoir (31). The oil reservoir (31) is fixedly installed on the top of the electric slider (22). A fixing frame (32) is fixedly installed on the left side of the oil reservoir (31). An oil outlet ring (33) that fits on the outside of the electric slide rail (21) is fixedly installed on the bottom of the fixing frame (32). A brush (34) that fits against the outside of the electric slide rail (21) is fixedly installed on the inner side of the oil outlet ring (33). A connecting pipe (35) that communicates with the inner top wall of the oil outlet ring (33) is fixedly installed on the left side of the inner wall of the oil reservoir (31).

3. A miniature automatic fire extinguishing device suitable for electric vehicle charging piles according to claim 1, characterized in that: The adjustment mechanism (4) includes a mounting box (401). The mounting box (401) is fixedly mounted on the bottom of the connecting seat (23). A rotating shaft (402) extending to the bottom of the mounting box (401) is rotatably connected to the inner top wall of the mounting box (401). A driven gear (403) located inside the mounting box (401) is fixedly mounted on the outer side of the rotating shaft (402). A servo motor (404) is fixedly mounted on the inner top wall of the mounting box (401). A drive gear (405) meshing with the driven gear (403) is fixedly mounted on the output shaft of the servo motor (404). A U-shaped frame (406) is fixedly mounted on the bottom of the rotating shaft (402). A limit guide rail (407) is fixedly mounted on the bottom of the mounting box (401). Four limit guide rails extending to the inside of the limit guide rails (407) are fixedly mounted on the top of the U-shaped frame (406). The upright (408) is slidably connected to it. A support rod (409) is fixedly installed between the left and right sides of the inner wall of the U-shaped frame (406). A rotating plate (410) is rotatably connected to the outside of the support rod (409). The outer box (5) is fixedly installed at the bottom of the rotating plate (410) and located inside the U-shaped frame (406). The top plate (8) is set on the inner top wall of the outer box (5). A rectangular plate (411) located inside the U-shaped frame (406) is fixedly installed on the top of the outer box (5). An electric push rod (412) is fixedly installed on the rear side of the inner top wall of the U-shaped frame (406). A U-shaped plate (413) located outside the rectangular plate (411) is fixedly installed at the output end of the electric push rod (412). A round rod (414) that penetrates the rectangular plate (411) and is slidably connected to it is fixedly installed on the inner side of the U-shaped plate (413).

4. A miniature automatic fire extinguishing device suitable for electric vehicle charging piles according to claim 1, characterized in that: The fixing mechanism (6) includes a movable frame (61). Two movable frames (61) extending to the bottom are slidably installed on the inner side of the outer box (5). The two movable frames (61) are symmetrically distributed on the left and right sides. A handle (62) is fixedly installed between the bottoms of the two movable frames (61). Two connecting springs (63) are fixedly installed on the left and right sides of the inner wall of the outer box (5). Support blocks (64) that are slidably connected to the bottom wall of the outer box (5) are fixedly installed on the opposite sides of the connecting springs (63) on the left and right sides. Wedge blocks (65) are fixedly installed on the opposite sides of the two support blocks (64). A push plate (66) that is slidably connected to the top of the wedge block (65) is fixedly installed at one end of the movable frame (61).

5. A miniature automatic fire extinguishing device suitable for electric vehicle charging piles according to claim 1, characterized in that: The fire extinguishing mechanism (7) includes a fire extinguisher body (71), which is located inside the outer box (5) and placed on top of two support blocks (64). The fire extinguisher body (71) is attached to the bottom of the top plate (8), and the side plate (9) is attached to the rear side of the fire extinguisher body (71). A nozzle (72) is movably installed on the front side of the fire extinguisher body (71).

6. A miniature automatic fire extinguishing device suitable for electric vehicle charging piles according to claim 4, characterized in that: The inner wall of the outer box (5) has rectangular holes on both the left and right sides, and the inner bottom wall of the outer box (5) has through holes. The inner wall of the outer box (5) has open designs on both the front and back sides. The two support blocks (64) are symmetrically distributed on the left and right sides. The inner wall of the outer box (5) has limiting holes on both the left and right sides that are adapted to the moving trajectory of the moving frame (61).

7. A miniature automatic fire extinguishing device suitable for electric vehicle charging piles according to claim 3, characterized in that: The bottom of the top plate (8) is arc-shaped, and the inner side of the rectangular plate (411) is provided with a strip hole. The size of the strip hole is adapted to the moving trajectory of the round rod (414) and is designed to be inclined.

8. A miniature automatic fire extinguishing device suitable for electric vehicle charging piles according to claim 3, characterized in that: The inner bottom wall of the mounting box (401) is provided with a circular hole that matches the rotating shaft (402), and the inner side of the limiting guide rail (407) is provided with an annular hole that matches the moving trajectory of the upright (408).

9. A miniature automatic fire extinguishing device suitable for electric vehicle charging piles according to claim 2, characterized in that: The inner sidewall of the oil outlet ring (33) is provided with an oil outlet hole, and there are multiple oil outlet holes. The inner top wall of the oil outlet ring (33) is provided with an installation round hole that is compatible with the connecting pipe (35).

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