Safety protection device for charging station

Abstract

The invention provides a safety protection device for a charging station, belongs to the technical field of new energy charging, and solves the technical problem that a spontaneous combustion vehicle cannot be far away from a charging pile in an unmanned state in the prior art. A charging station safety protection device comprises a cement foundation laid on the ground of a charging station, a plurality of charging piles are fixed to the cement foundation, a plurality of equipment grooves are formed in the cement foundation, each equipment groove is matched with the corresponding charging pile, and a conveying belt is arranged in each equipment groove. An equipment groove is formed in the cement foundation, an L-shaped groove located in the cement foundation is formed beside each equipment groove, a pair of sealing cover plates is slidably connected to a groove opening of each L-shaped groove, a sealing glue layer is fixed to the edge of each sealing cover plate, and multiple pairs of first mechanical boxes are arranged in the cement foundation. The charging pile has the advantages that after the vehicle burns, the conveying belt starts to operate, the vehicle is moved to the area away from the charging pile and the surrounding parking space, and fire spreading is prevented.

Description

Technical Field

[0001] This invention belongs to the field of new energy charging technology and relates to a safety protection device, particularly a safety protection device for charging stations. Background Technology

[0002] Electric vehicles (BEVs) are vehicles powered by an onboard power source, using an electric motor to drive the wheels, and meeting all road traffic and safety regulations. They offer advantages such as environmental friendliness, low operating costs, and ease of maintenance, and their future prospects are widely considered promising. Charging stations typically refer to electric vehicle charging stations, which are sites for charging electric vehicles. With the increasing prevalence of electric vehicles, the corresponding charging infrastructure will also increase, making electric vehicle charging stations a key focus for the development of the automotive and energy industries.

[0003] Electric vehicle (EV) fires are more dangerous than gasoline-powered vehicles due to the potential for battery pack aging, damage, or short circuits during charging. An EV fire is essentially caused by thermal runaway of the battery pack. A short circuit initially triggers a violent chemical reaction, causing heat to accumulate within the confined battery compartment, leading to the accumulation of gases from internal battery decomposition. This causes the battery to expand rapidly, burst, and release flammable and toxic gases at temperatures exceeding 1500°C. The battery compartment then bursts. The resulting liquid battery fluid and high-temperature gas, upon encountering oxygen, rapidly ignite flammable materials inside the vehicle, resulting in a deflagration and a complete fire. The increasing number of EV fires underscores the critical need for fire prevention measures at charging stations.

[0004] A search revealed a Chinese patent document disclosing a new energy vehicle charging station and safety protection device [Application No.: 202410722292.3; Publication No.: CN 118683374 A]. This new energy vehicle charging station and safety protection device includes a charging area, a waiting area, a circulating heat exchange component, a temperature compensation circulation pipeline, a temperature detection component, and a temperature compensation component. The charging area is equipped with multiple charging piles. The circulating heat exchange component collects heat generated by the charging piles and the new energy vehicle. The temperature compensation circulation pipeline outputs the heat recovered by the circulating heat exchange component. The temperature detection component detects the temperature of the new energy vehicle battery and is installed on top of the temperature compensation component. The temperature compensation component is matched with the circulating heat exchange component and the temperature compensation circulation pipeline. Compared with existing technologies, this invention provides a new energy vehicle charging station and safety protection device that can reduce the charging time of new energy vehicle batteries, improve the charging efficiency of new energy vehicle batteries, and enhance the safety of new energy vehicles at charging stations.

[0005] While this patent improves the battery charging efficiency and safety of new energy vehicles at charging stations, according to fire department recommendations, if an electric vehicle spontaneously combusts while charging, it must be moved away from the charging station immediately. This is a necessary measure to ensure personal safety and avoid injury caused by battery explosion or fire spread. However, this application cannot achieve the ability to move a spontaneously combusting vehicle away from the charging station when no one is present. Summary of the Invention

[0006] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a safety protection device for charging stations. The technical problem this invention aims to solve is: how to ensure that when a vehicle catches fire, the conveyor belt starts operating to move the vehicle to an area away from the charging pile and surrounding parking spaces to prevent the fire from spreading.

[0007] The objective of this invention can be achieved through the following technical solutions: A safety protection device for a charging station includes a cement foundation laid on the ground of the charging station, multiple charging piles fixed on the cement foundation, multiple equipment slots opened in the cement foundation, each equipment slot matching a corresponding charging pile, and a conveyor belt installed in each equipment slot. Each equipment slot also has an L-shaped groove located on the cement foundation, and a pair of sealing plates are slidably connected to the opening of each L-shaped groove. Each sealing plate has a sealing layer fixed to its edge. Multiple pairs of mechanical boxes are installed in the cement foundation, each pair of mechanical boxes containing a first drive component, each first drive component being connected to a corresponding sealing plate. A support arm is installed in the vertical groove of each L-shaped groove, and a fire extinguishing arm is installed in the horizontal groove of each L-shaped groove. Each fire extinguishing arm is rotatably connected to a corresponding support arm. Multiple mechanical boxes are installed in the cement foundation, each mechanical box containing a second drive component, each second drive component being connected to a support arm.

[0008] The working principle of this invention is as follows: When a vehicle needs to be charged, it can be parked on a conveyor belt and powered normally through a charging station. If the vehicle catches fire during charging or simply while parked, the conveyor belt will start operating to move the vehicle to an area away from the charging station and surrounding parking spaces. Then, the support arm will unfold, and the fire extinguishing arm will spray fire extinguishing liquid to extinguish the fire in the surrounding environment and the burning vehicle. The second drive component will drive the support arm to move, increasing the coverage of the fire extinguishing range. The first drive component will control the movement of the cover plate, thereby protecting the support arm and fire extinguishing arm when they are in the retracted state, preventing foreign objects and rainwater from seeping in, and protecting the storage environment of the internal structure.

[0009] Each of the conveyor belts includes an inner toothed belt and multiple toothed rollers rotatably connected in each slot. The multiple toothed rollers mesh with the inner toothed belt, which is fixedly connected end to end. Multiple drive frames are fixed in the concrete foundation. Multiple drive worm gears are rotatably connected in each drive frame. Each drive worm gear is coaxially fixedly connected to a corresponding toothed roller. A drive worm is rotatably connected in each drive frame. Each drive worm meshes with a corresponding drive worm gear. A servo motor is fixed in each drive frame. The output shaft of each servo motor is coaxially fixedly connected to a corresponding drive worm.

[0010] With the above structure, a servo motor can drive a drive worm gear to rotate. The rotation of the drive worm gear will drive multiple drive worm wheels to rotate, and the rotation of the multiple drive worm wheels will drive the corresponding toothed rollers to rotate. When each toothed roller rotates synchronously, the conveyor belt can operate normally and achieve the ability to move vehicles automatically.

[0011] Each of the inner toothed belts has multiple skeleton plates arranged and fixed inside, and multiple gravity sensors are arranged and fixed on each skeleton plate. Each inner toothed belt is made of rubber, and the surface of each inner toothed belt is roughened.

[0012] By adopting the above structure, the overall strength and support capacity of the conveyor belt can be improved through multiple skeleton plates, and the position of the vehicle on the conveyor belt can be determined by the gravity sensor, thereby improving the accuracy and overall efficiency when moving the vehicle.

[0013] The first drive assembly includes a servo motor fixed inside each pair of mechanical boxes, a winding wheel rotatably connected inside each pair of mechanical boxes, a steel rope fixed on each winding wheel, a coaxial fixed connection between each winding wheel and the output shaft of the corresponding servo motor, a portion of each steel rope being wound on the corresponding winding wheel, and the other end of each steel rope being fixedly connected to a corresponding cover plate.

[0014] With the above structure, the corresponding winding wheel can be rotated by a servo motor. After the winding wheel rotates, the steel rope will pull the corresponding cover plate to move, so that the slot of the L-shaped groove is exposed, which facilitates the subsequent deployment of the support arm and fire extinguishing arm.

[0015] Multiple reset slots are provided in the cement foundation. Each reset slot is slidably connected to a push block. Each push block is fixed to the bottom of the corresponding reset slot with a reset spring. Each push block is fixedly connected to the corresponding cover plate.

[0016] With the above structure, when the steel rope is released, the return spring releases the pressure, causing the cover plate to reset and thus covering the opening of the L-shaped groove.

[0017] The second drive assembly includes a control screw rotatably connected to each mechanical box 2, a servo motor 5 fixedly connected to each mechanical box 2, the output shaft of each servo motor 5 being coaxially fixedly connected to a corresponding control screw, a guide seat threaded onto each control screw, a servo motor 2 fixedly mounted on each guide seat, the output shaft of each servo motor 2 being fixedly connected to a corresponding support arm, a servo motor 3 fixedly mounted at one end of each support arm, and the output shaft of each servo motor 3 being coaxially fixedly connected to a corresponding fire extinguishing arm.

[0018] Using the above structure, the control screw can be rotated by servo motor five. After the control screw rotates, it will drive the guide seat to move, and the guide seat will drive the support arm to move, thereby increasing the coverage of the fire extinguishing range. Furthermore, by cutting off the power to the charging column as soon as the vehicle is found to be burning, and by cooperating with the drive of servo motor three and servo motor two during the deployment of the support arm and the fire extinguishing arm, the angle adjustment capability of the support arm and the fire extinguishing arm can be realized, thereby increasing the fire extinguishing angle range and further improving the fire extinguishing effect.

[0019] Each of the fire extinguishing arms is equipped with a wire cutter, each wire cutter being made of ceramic, and a nozzle being fixed to the bottom of each fire extinguishing arm. A delivery pipe is fixed inside each fire extinguishing arm, and each delivery pipe is connected to the corresponding nozzle.

[0020] With the above structure, the charging cable can be cut with a wire cutter during the deployment of the support arm and the fire extinguishing arm, preventing the flames from burning the vehicle from burning along the charging cable to the charging station. Cutting the charging cable directly can also prevent it from obstructing the vehicle's movement.

[0021] Each of the aforementioned support arms has a mixing chamber, and a stirring rod is rotatably connected to each mixing chamber. A servo motor is fixed within each support arm, and the output shaft of each servo motor is coaxially fixed to the stirring rod. Each support arm also has an injection chamber, and a piston is slidably connected to each injection chamber. An electric push rod is fixed within each support arm, and the output end of each electric push rod is fixedly connected to a corresponding piston. A one-way valve is fixed between each injection chamber and its corresponding mixing chamber, allowing flow to the mixing chamber. Each support arm also has an injection port, and a one-way valve is fixed between each injection port and its corresponding injection chamber. A delivery pump is fixed within each support arm, and the input end of each delivery pump is connected to its corresponding mixing chamber. A connecting hose is fixed between the output end of each delivery pump and its corresponding delivery pipe. A water supply pipeline is laid within the cement foundation, connecting to each mixing chamber.

[0022] With the above structure, when a vehicle catches fire, the electric push rod is activated, squeezing the foam flame retardant in the injection chamber into the mixing chamber. At this time, water is injected into the mixing chamber through the water supply pipeline. The servo motor drives the stirring rod to rotate, and the stirring rod mixes the water and foam flame retardant. The delivery pump then delivers the mixture in the mixing chamber to the delivery pipeline, and the delivery pipeline distributes the mixture to each high-pressure nozzle. The mixture is then sprayed out through the high-pressure nozzle to extinguish the fire on the vehicle.

[0023] Each of the charging stations is equipped with a smoke and temperature detector.

[0024] By adopting the above structure, the smoke and temperature detector can be used as the "eye" of the overall structure of this application. The smoke and temperature detector can monitor parked vehicles in real time. When unexplained smoke and abnormal high temperature appear in the parked vehicles, fire extinguishing work can be carried out to improve the efficiency of safety protection.

[0025] Compared with existing technologies, the safety protection device of this charging station has the following advantages: 1. By parking the vehicle on the conveyor belt, when the vehicle needs to be charged, it can be powered normally through the charging station. If the vehicle catches fire during charging or simply parking, the conveyor belt will start to operate and move the vehicle to an area away from the charging station and surrounding parking spaces to prevent the fire from spreading.

[0026] 2. The support arm is deployed, and after the support arm is deployed, fire extinguishing liquid is sprayed through the fire extinguishing arm to extinguish the fire in the surrounding environment and the burning vehicle. The second drive component drives the support arm to move, thereby increasing the coverage of the fire extinguishing range.

[0027] 3. The control screw is rotated by servo motor five, which in turn moves the guide seat, which in turn moves the support arm, thereby increasing the coverage of the fire extinguishing range. When a vehicle is found to be burning, the charging column is immediately de-energized. During the deployment of the support arm and the fire extinguishing arm, the angle of the support arm and the fire extinguishing arm is adjusted by servo motor three and servo motor two, thereby increasing the fire extinguishing angle range and further improving the fire extinguishing effect.

[0028] 4. Use a wire cutter to cut the charging cable during the deployment of the support arm and fire extinguishing arm to prevent the flames from burning the vehicle along the charging cable to the charging station. Cutting the charging cable directly can also prevent it from obstructing the vehicle's movement. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of the present invention.

[0030] Figure 2This is a schematic diagram of the internal structure of the toothed belt in this invention.

[0031] Figure 3 This is a schematic diagram of the internal structure of the support arm and the fire extinguishing arm in this invention.

[0032] Figure 4 This is a schematic diagram of the internal structure of the cement foundation in this invention.

[0033] Figure 5 This is a schematic diagram of the conveyor belt structure in this invention.

[0034] Figure 6 This is a three-dimensional structural diagram of the support arm and fire extinguishing arm in this invention.

[0035] In the diagram: 1. Cement foundation; 2. Charging pile; 3. Equipment trough; 4. L-shaped groove; 5. Cover plate; 6. Mechanical box one; 7. Support arm; 8. Fire extinguishing arm; 9. Mechanical box two; 10. Internal toothed belt; 11. Toothed roller; 12. Drive frame; 13. Drive worm gear; 14. Drive worm; 15. Servo motor six; 16. Frame plate; 17. Gravity sensor; 18. Servo motor one; 19. Rewind reel; 20. Steel rope; 21. Reset groove; 22. Push block; 23. Reset spring. 24. Adjustment screw; 25. Servo motor five; 26. Guide seat; 27. Servo motor two; 28. Servo motor three; 29. ​​Wire cutter; 30. Nozzle; 31. Delivery pipe; 32. Mixing chamber; 33. Stirring rod; 34. Servo motor four; 35. Injection chamber; 36. Piston; 37. Electric push rod; 38. Injection port; 39. One-way valve one; 40. One-way valve two; 41. Delivery pump; 42. Connecting hose; 43. Water supply pipe; 44. Smoke and temperature detector. Detailed Implementation

[0036] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0037] like Figures 1-6As shown, a safety protection device for a charging station includes a cement foundation 1 laid on the ground of the charging station, multiple charging piles 2 fixed on the cement foundation 1, multiple equipment slots 3 formed on the cement foundation 1, each equipment slot 3 matching a corresponding charging pile 2, and a conveyor belt installed in each equipment slot 3. An L-shaped groove 4 is formed next to each equipment slot 3 on the cement foundation 1, and a pair of sealing plates 5 are slidably connected to the opening of each L-shaped groove 4. A sealing layer is fixed to the edge of each sealing plate 5. The interior is equipped with multiple pairs of mechanical boxes 6, each pair of mechanical boxes 6 is equipped with a first drive component, each first drive component is connected to a corresponding cover plate 5, each L-shaped groove 4 is equipped with a support arm 7 in its vertical groove, each L-shaped groove 4 is equipped with a fire extinguishing arm 8 in its horizontal groove, each fire extinguishing arm 8 is rotatably connected to a corresponding support arm 7, and the cement foundation 1 is equipped with multiple mechanical boxes 9, each mechanical box 9 is equipped with a second drive component, each second drive component is connected to a support arm 7.

[0038] The vehicle can be parked on the conveyor belt. When charging is needed, the vehicle can be powered normally through the charging pile 2. If the vehicle catches fire during charging or simply parking, the conveyor belt will start operating to move the vehicle away from the charging pile 2 and surrounding parking spaces. Then, the support arm 7 will be deployed, and the fire extinguishing arm 8 will spray fire extinguishing liquid to extinguish the fire in the surrounding environment and the burning vehicle. The second drive component will drive the support arm 7 to move, increasing the coverage of the fire extinguishing range. The first drive component will control the movement of the cover plate 5, thereby protecting the support arm 7 and the fire extinguishing arm 8 when they are in the retracted state, preventing the infiltration of foreign objects and rainwater, and protecting the storage environment of the internal structure.

[0039] Each conveyor belt includes an inner toothed belt 10 and multiple toothed rollers 11 rotatably connected in each slot. The multiple toothed rollers 11 mesh with the inner toothed belt 10. The inner toothed belt 10 is fixedly connected end to end. Multiple drive frames 12 are fixed in the cement foundation 1. Multiple drive worm gears 13 are rotatably connected in each drive frame 12. Each drive worm gear 13 is coaxially fixedly connected to the corresponding toothed roller 11. A drive worm 14 is rotatably connected in each drive frame 12. Each drive worm 14 meshes with the corresponding drive worm gear 13. A servo motor 15 is fixed in each drive frame 12. The output shaft of each servo motor 15 is coaxially fixedly connected to the corresponding drive worm 14.

[0040] With the above structure, the servo motor 15 can drive the drive worm 14 to rotate. After the drive worm 14 rotates, it will drive multiple drive worm wheels 13 to rotate. After the multiple drive worm wheels 13 rotate, they will drive the corresponding toothed rollers 11 to rotate. After each toothed roller 11 rotates synchronously, the conveyor belt can operate normally and achieve the ability to move vehicles automatically.

[0041] Each inner toothed belt 10 has multiple skeleton plates 16 arranged and fixed inside, and multiple gravity sensors 17 are arranged and fixed on each skeleton plate 16. Each inner toothed belt 10 is made of rubber, and the surface of each inner toothed belt 10 is roughened.

[0042] By adopting the above structure, the overall strength performance of the conveyor belt can be improved by multiple skeleton plates 16, the support capacity can be increased, and the gravity sensor 17 can be used to know the location of the vehicle in the parking area of ​​the conveyor belt, thereby improving the accuracy and overall efficiency when moving the vehicle.

[0043] The first drive assembly includes a servo motor 18 fixed inside each pair of mechanical boxes 6, a winding wheel 19 rotatably connected inside each pair of mechanical boxes 6, a steel rope 20 fixed on each winding wheel 19, each winding wheel 19 being coaxially fixedly connected to the output shaft of the corresponding servo motor 18, a portion of each steel rope 20 being wound on the corresponding winding wheel 19, and the other end of each steel rope 20 being fixedly connected to the corresponding cover plate 5.

[0044] With the above structure, the servo motor 18 can drive the corresponding winding wheel 19 to rotate. After the winding wheel 19 rotates, the steel rope 20 will pull the corresponding cover plate 5 to move, so that the groove of the L-shaped groove 4 is exposed, which facilitates the subsequent deployment of the support arm 7 and the fire extinguishing arm 8.

[0045] Multiple reset slots 21 are provided in the cement foundation 1. Each reset slot 21 is slidably connected with a push block 22. Each push block 22 is fixed with a reset spring 23 between it and the bottom of the corresponding reset slot 21. Each push block 22 is fixedly connected with the corresponding cover plate 5.

[0046] With the above structure, when the steel rope 20 is released, the return spring 23 releases the pressure, causing the cover plate 5 to return to its original position, thus covering the opening of the L-shaped groove 4.

[0047] The second drive assembly includes a control screw 24 rotatably connected to each mechanical box 2 9, a servo motor 5 25 fixedly connected to each mechanical box 2 9, the output shaft of each servo motor 5 25 being coaxially fixedly connected to the corresponding control screw 24, a guide seat 26 threadedly connected to each control screw 24, a servo motor 27 fixedly fixed to each guide seat 26, the output shaft of each servo motor 27 being fixedly connected to the corresponding support arm 7, a servo motor 3 28 fixedly fixed to one end of each support arm 7, and the output shaft of each servo motor 3 28 being coaxially fixedly connected to the corresponding fire extinguishing arm 8.

[0048] With the above structure, the control screw 24 can be rotated by the servo motor 25. After the control screw 24 rotates, it will drive the guide seat 26 to move. In turn, the guide seat 26 will drive the support arm 7 to move, thereby increasing the coverage of the fire extinguishing range. Furthermore, by cutting off the power to the charging column as soon as the vehicle is found to be burning, and by coordinating the drive of the servo motor 28 and the servo motor 27 during the deployment of the support arm 7 and the fire extinguishing arm 8, the angle adjustment capability of the support arm 7 and the fire extinguishing arm 8 can be realized, thereby increasing the fire extinguishing angle range and further improving the fire extinguishing effect.

[0049] Each fire extinguishing arm 8 is fixed with an electric wire cutter 29, each electric wire cutter 29 is made of ceramic, and each fire extinguishing arm 8 is fixed with a nozzle 30 at the bottom. Each fire extinguishing arm 8 is fixed with a delivery pipe 31, and each delivery pipe 31 is connected to the corresponding nozzle 30.

[0050] With the above structure, the charging cable can be cut by the wire cutter 29 during the unfolding of the support arm 7 and the fire extinguishing arm 8, preventing the flames of the burning vehicle from burning along the charging cable to the charging pile 2. Cutting the charging cable directly can also prevent the charging cable from causing obstruction when the vehicle is moving.

[0051] Each support arm 7 has a mixing chamber 32, and a stirring rod 33 is rotatably connected to each mixing chamber 32. A servo motor 4 34 is fixed inside each support arm 7, and the output shaft of each servo motor 4 34 is coaxially fixedly connected to the stirring rod 33. Each support arm 7 also has an injection chamber 35, and a piston 36 is slidably connected to each injection chamber 35. An electric push rod 37 is fixed inside each support arm 7, and the output end of each electric push rod 37 is fixedly connected to a corresponding piston 36. Each injection chamber 35 and its corresponding mixing chamber 32 are connected... A one-way valve 39 is fixed to the mixing chamber 32, and an injection port 38 is opened on each support arm 7. A one-way valve 40 is fixed between each injection port 38 and the corresponding injection chamber 35. A delivery pump 41 is fixed inside each support arm 7. The input end of each delivery pump 41 is connected to the corresponding mixing chamber 32, and a connecting hose 42 is fixed between the output end of each delivery pump 41 and the corresponding delivery pipe 31. A water supply pipe 43 is laid in the cement foundation 1 and is connected to each mixing chamber 32.

[0052] With the above structure, when a vehicle fire occurs, the electric push rod 37 is activated, squeezing the foam flame retardant in the injection chamber 35 into the mixing chamber 32. At this time, water is injected into the mixing chamber 32 through the water supply pipe 43. The servo motor 44 drives the stirring rod 33 to rotate, and the stirring rod 33 mixes the water and the foam flame retardant. The delivery pump 41 then delivers the mixture in the mixing chamber 32 to the delivery pipe 31, and the delivery pipe 31 distributes the mixture to each high-pressure nozzle, and the mixture is sprayed out through the high-pressure nozzle to extinguish the fire on the vehicle.

[0053] Each charging station 2 is equipped with a smoke and temperature detector 44.

[0054] With the above structure, the smoke and temperature detector 44 can be used as the "eye" of the overall structure of this application. The smoke and temperature detector 44 can monitor the parked vehicle in real time. When the parked vehicle shows unexplained smoke and abnormal high temperature, fire extinguishing work can be carried out to improve the efficiency of safety protection.

[0055] The working principle of this invention is as follows: When a vehicle needs to be charged, it is parked on a conveyor belt and powered by the charging pile 2. During charging or simply parking, the vehicle is monitored in real time by a smoke and temperature detector 44. When unexplained smoke or abnormally high temperature appears on the parked vehicle, the charging pile is immediately de-energized. Then, the support arm 7 is extended, and the wire cutter 29 cuts the charging cable during the extension of the support arm 7 and the fire extinguishing arm 8 to prevent the flames from burning the vehicle from spreading along the charging cable to the charging pile 2. Cutting the charging cable also prevents it from obstructing the vehicle's movement. At this time, the conveyor belt starts operating, moving the vehicle to an area away from the charging pile 2 and surrounding parking spaces. When a vehicle fire occurs, the electric push rod 37 is activated, squeezing the foam flame retardant in the injection chamber 35 into the mixing chamber 32. At this time, water is supplied to the mixing chamber through the water supply pipe 43. Water is injected into the mixing chamber 32. Servo motor 44 drives the stirring rod 33 to rotate, mixing the water and foam flame retardant. The delivery pump 41 then delivers the mixture from the mixing chamber 32 to the delivery pipe 31, which distributes the mixture to each high-pressure nozzle. The mixture is then sprayed out through the high-pressure nozzle to extinguish the fire on the vehicle. Servo motor 525 drives the control screw 24 to rotate, which in turn moves the guide seat 26. The guide seat 26 then moves the support arm 7, increasing the coverage of the fire extinguishing range. When the vehicle is found to be burning, the charging column is immediately de-energized. During the deployment of the support arm 7 and the fire extinguishing arm 8, the angle of the support arm 7 and the fire extinguishing arm 8 is adjusted by servo motor 328 and servo motor 27, increasing the fire extinguishing angle range and further improving the fire extinguishing effect.

[0056] In summary, when a vehicle needs to be charged by parking it on the conveyor belt, it can be powered normally through the charging pile 2. If the vehicle catches fire during charging or simply parking, the conveyor belt will start operating to move the vehicle away from the charging pile 2 and surrounding parking spaces. Then, the support arm 7 will unfold, and the fire extinguishing arm 8 will spray fire extinguishing liquid to extinguish the fire in the surrounding environment and the burning vehicle. The second drive component will drive the support arm 7 to move, increasing the coverage of the fire extinguishing range. The first drive component will control the movement of the cover plate 5, thereby protecting the support arm 7 and the fire extinguishing arm 8 when they are in the retracted state, preventing foreign objects and rainwater from seeping in, and protecting the storage environment of the internal structure.

[0057] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A charging station safety protection device, comprising a cement foundation (1) laid on the ground of a charging station, a plurality of charging piles (2) are fixed on the cement foundation (1), characterized in that, The cement foundation (1) is provided with a plurality of equipment slots (3), each equipment slot (3) matches a corresponding charging pile (2), and each equipment slot (3) is provided with a conveyor belt, and each equipment slot (3) corresponds to an L-shaped groove (4) on the cement foundation (1), each L-shaped groove (4) is slidably connected with a pair of cover plates (5), the edges of each cover plate (5) are fixedly connected with a sealing rubber layer, and a plurality of mechanical boxes (6) are arranged in the cement foundation (1), each pair of mechanical boxes (6) is provided with a first driving assembly, each first driving assembly is connected with a corresponding cover plate (5), each L-shaped groove (4) is provided with a support arm (7) in the vertical groove, each L-shaped groove (4) is provided with a fire extinguishing arm (8) in the horizontal groove, each fire extinguishing arm (8) is rotatably connected with a corresponding support arm (7), and a plurality of mechanical boxes (9) are arranged in the cement foundation (1), each mechanical box (9) is provided with a second driving assembly, and each second driving assembly is connected with a support arm (7).

2. A charging station safety shield according to claim 1, wherein, Each conveyor belt comprises an inner tooth belt (10) and a plurality of tooth rollers (11) rotatably connected in each setting groove, the plurality of tooth rollers (11) are meshed with the inner tooth belt (10), the inner tooth belt (10) is fixedly connected at the head and tail, a plurality of driving frames (12) are fixed in the cement foundation (1), a plurality of driving worms (14) are rotatably connected in each driving frame (12), each driving worm (14) is coaxially fixedly connected with a corresponding driving worm (13), each driving frame (12) is fixedly connected with a servo motor six (15), and the output shaft of each servo motor six (15) is coaxially fixedly connected with a corresponding driving worm (14).

3. A charging station safety shield according to claim 2, wherein, A plurality of skeleton plates (16) are arranged and fixed in each inner tooth belt (10), a plurality of gravity sensors (17) are arranged and fixed on each skeleton plate (16), each inner tooth belt (10) is made of rubber, and the surface of each inner tooth belt (10) is roughened.

4. The charging station safety shield of claim 1, wherein, The first driving assembly comprises a servo motor one (18) fixed in each pair of mechanical boxes (6), a winding wheel (19) rotatably connected in each pair of mechanical boxes (6), a steel wire (20) fixed on each winding wheel (19), a coaxially fixed connection between each winding wheel (19) and the output shaft of a corresponding servo motor one (18), a part of each steel wire (20) wound on a corresponding winding wheel (19), and the other end of each steel wire (20) fixedly connected with a corresponding cover plate (5).

5. The charging station safety shield of claim 1, wherein, A plurality of reset grooves (21) are arranged in the cement foundation (1), each of which is slidably connected with a pushing block (22), a reset spring (23) is fixed between each pushing block (22) and the bottom of the corresponding reset groove (21), and each pushing block (22) is fixedly connected with the corresponding cover plate (5).

6. A charging station safety shield according to claim 1, wherein, The second driving assembly comprises a control lead screw (24) rotatably connected in each mechanical box two (9), a servo motor five (25) fixedly connected in each mechanical box two (9), an output shaft of each servo motor five (25) coaxially fixedly connected with the corresponding control lead screw (24), a guide seat (26) threadedly connected on each control lead screw (24), a servo motor two (27) fixed on each guide seat (26), an output shaft of each servo motor two (27) fixedly connected with the corresponding support arm (7), a servo motor three (28) fixed at one end of each support arm (7), and an output shaft of each servo motor three (28) coaxially fixedly connected with the corresponding fire extinguishing arm (8).

7. The charging station safety shield of claim 1, wherein, Each of the fire extinguishing arms (8) is fixed with a wire cutter (29) made of ceramic, the bottom of each fire extinguishing arm (8) is fixed with a spray head (30), each fire extinguishing arm (8) is fixed with a delivery pipeline (31), and each delivery pipeline (31) is connected with the corresponding spray head (30).

8. A charging station safety shield according to claim 7, wherein, Each of the support arms (7) is provided with a mixing cavity (32), each mixing cavity (32) is rotatably connected with a stirring rod (33), each support arm (7) is fixed with a servo motor four (34), an output shaft of each servo motor four (34) is coaxially fixedly connected with the stirring rod (33), each support arm (7) is provided with an injection cavity (35), each injection cavity (35) is slidably connected with a piston (36), each support arm (7) is fixed with an electric push rod (37), an output end of each electric push rod (37) is fixedly connected with the corresponding piston (36), a one-way valve one (39) flowing to the mixing cavity (32) is fixed between each injection cavity (35) and the corresponding mixing cavity (32), each support arm (7) is provided with an injection port (38), a one-way valve two (40) flowing to the injection cavity (35) is fixed between each injection port (38) and the corresponding injection cavity (35), each support arm (7) is fixed with a delivery pump (41), an input end of each delivery pump (41) is communicated with the corresponding mixing cavity (32), a connecting hose (42) is fixed between the output end of each delivery pump (41) and the corresponding delivery pipeline (31), and a water supply pipeline (43) is arranged in the cement foundation (1) and communicated with each mixing cavity (32).

9. The charging station safety shield of claim 1, wherein, The charging pile (2) is fixed with a smoke temperature detector (44).

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