Split charging pile with protection device and protection method thereof

Abstract

The application discloses a split charging pile with a protection device, which comprises a machine body, the outer surface of the machine body is rotationally connected with a cover plate, the back surface of the cover plate is provided with a pile body, and the outer surface of the pile body is fixedly connected with a pull handle. The application relates to the technical field of power distribution cabinets, and the counterweight device is arranged. When the equipment is used, the belt disc outside the rear cover drives the screw rod to rotate. Under the action of the threaded connection, the screw rod helps the pile body outside the pile body to move outward to pull out the pull rod inside the air cylinder. Compressed air is extruded into the inside of the elbow pipe, the ejector rod is extended, the ejector rod pushes and extrudes the counterweight plate to slide along the outer surface of the fixed rod, the compression spring is extruded and contracted, the movement of the counterweight plate is balanced with the pile body moving outward, the gravity center position is adjusted, the equipment is prevented from overturning, and the stability is improved.

Description

Technical Field

[0001] This invention relates to the field of power distribution cabinet technology, and specifically to a split-type charging pile with a protection device and its protection method. Background Technology

[0002] DC charging piles can be divided into integrated and split types according to their structure. An integrated type means that all the components of the charging pile are integrated into one unit; a split type separates the control unit, billing unit, charging interface, human-machine interface and other parts into one unit. Except for the charging gun, this part is all low-voltage circuitry, while the charging module of the power unit and the power distribution circuitry of the high-voltage part are concentrated together.

[0003] In the prior art, such as the Chinese patent CN217415511U, a split-type charging pile and its protection device are described. The protection device includes: a voltage sensor for detecting the DC voltage signal input to the charging unit module; a current sensor for detecting the DC current signal input to the charging unit module; an MCU for generating a PWM control signal based on the DC voltage and current signals; and a PWM pulse signal transmission circuit, with its input end connected to the MCU and its output end connected to the power unit module, for outputting a PWM pulse signal to the power unit module based on the PWM control signal, so that the power unit module controls its own operating state according to the PWM pulse signal. This invention uses a PWM pulse signal transmission circuit to generate a PWM pulse signal, thereby achieving protection for the split-type charging pile during the charging process. The protection is highly reliable, sensitive, and fast, and is suitable for various high-power DC split-type charging stations of different capacities.

[0004] However, while the aforementioned patents have the above-mentioned technical advantages, their disadvantages are that the charging piles are in direct contact with the outside world and have poor external protection. When the charging piles are used in the external environment for a long time, external factors can easily affect their use and shorten their lifespan. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the technical solution adopted by this invention is as follows: a split-type charging pile with a protective device, comprising a body, a cover plate rotatably connected to the outer surface of the body, a pile body disposed on the back of the cover plate, a handle fixedly connected to the outer surface of the pile body, a display screen disposed on the top of the handle, a top plate disposed on the top of the display screen, a cable disposed at the bottom of the top plate, a charging head fixedly connected to the top of the cable, a slide rail disposed at the bottom of the charging head, a telescopic rod disposed on the right side of the slide rail, a roller fixedly connected to the left end of the telescopic rod, and an oil groove disposed at the bottom of the roller. By rotating the cover plate and pulling out the pile body through the handle, the roller at the left end of the telescopic rod rolls, removing the charging head at the top of the cable for charging. During the pulling process, a counterweight device prevents the equipment's center of gravity from shifting outward, causing overturning, and a lubrication device reduces resistance during movement by continuously injecting oil.

[0006] The machine body is equipped with a counterweight device inside. The top of the counterweight device is equipped with an exhaust duct, and the bottom of the exhaust duct is equipped with a cavity. The cavity is equipped with a ramp plate, and the right side of the ramp plate is equipped with a cooling device. The bottom of the cooling device is equipped with a lubrication device. The cooling device draws cold air into the cavity. Through fluid exchange, the heat inside the equipment is carried by hot air and discharged from the exhaust duct. The ramp plate prevents dust from entering the equipment. The top plate not only prevents dust but also guides external water flow from the arc-shaped surface at the top of the top plate to the interior of the cooling device. The display screen shows charging information. The concealed charging pile can effectively isolate the influence of the external environment.

[0007] In a preferred embodiment, the bottom end of the cable is fixedly connected to the outer surface of the pile body, the outer surface of the charging head is inserted into the outer surface of the pile body, the oil groove is opened in the wall at the bottom of the machine body, the inner surface of the machine body is fixedly connected to the outer surface of the slide rail, the piston slides upward, the tension spring extends, the one-way valve slides downward relative to the piston, the through hole in the piston wall closes, the retaining ring moves upward, the lubricating oil inside the oil injection pipe is injected into the outside of the tension spring, and then the piston moves downward.

[0008] In a preferred embodiment, the right end of the telescopic rod is fixedly connected to the inner surface of the machine body, the outer surface of the roller is in rolling connection with the outer surface of the pile body, the lower surface of the pile body is in sliding connection with the outer surface of the slide rail, the lower surface of the top plate is fixedly connected to the upper surface of the machine body, and the outer surface of the display screen is fixedly connected to the outer surface of the pile body. The exhaust groove and the cavity are both located within the machine body wall. The lubrication device is fixedly connected to the lower surface of the machine body. Under oil pressure, the through-hole of the one-way valve opens, and lubricating oil from outside the tension spring is injected into the top of the piston. As the piston moves upward a second time, the one-way valve closes, and lubricating oil is injected into the oil groove through the three-way pipe. The slide rails are arranged in a suspended, intermittent pattern, allowing lubricating oil to be injected into the outside of the pile body through the gaps for lubrication, facilitating the pulling of the pile body.

[0009] In a preferred embodiment, the lubrication device includes an oil injection pipe, a sealing cylinder is fixedly connected to the right end of the oil injection pipe, a piston is slidably connected to the inner surface of the sealing cylinder, a one-way valve is slidably connected to the inner surface of the piston, a tension spring is provided at the bottom of the one-way valve, a retaining ring is provided outside the tension spring, a three-way pipe is provided at the top of the retaining ring, and a pulley outside the rear cover drives the screw to rotate. Due to the action of the threaded connection, the screw assists in pushing out the pile body that has moved out of the pile body, which pulls out the pull rod inside the air cylinder, and compressed air is squeezed into the inside of the bend, and the push rod extends out.

[0010] In a preferred embodiment, the upper surface of the sealing cylinder is fixedly connected to the lower surface of the machine body, the bottom end of the tension spring is fixedly connected to the inner surface of the sealing cylinder, the outer surfaces of the piston and retaining ring are slidably connected to the outer surface of the sealing cylinder, the bottom end of the three-way pipe is fixedly connected to the inner surface of the sealing cylinder, the two ends of the top of the three-way pipe are connected to the inside of the oil tank, the outer surface of the three-way pipe is fixedly connected to the inner surface of the machine body, the push rod pushes the counterweight plate to slide along the outer surface of the fixed rod, the compression spring squeezes and contracts, and through the movement of the counterweight plate, a two-force balance is achieved with the outwardly moving pile, adjusting the center of gravity position, preventing the equipment from overturning, and improving stability.

[0011] In a preferred embodiment, the counterweight device includes a rear cover, an outer plate with a reel, a screw fixedly connected to the outer surface of the reel, an air cylinder at the top of the screw, a pull rod slidably connected to the inner surface of the air cylinder, a bend at the bottom of the pull rod, a top rod slidably connected to the inner surface of the bottom end of the bend, a counterweight plate fixedly connected to the outer surface of the top rod, a fixing rod slidably connected to the inner surface of the counterweight plate, and a compression spring on the outside of the fixing rod. Rainwater in rainy conditions flows along the arc surface of the top plate into the water tank, and water can also be automatically injected into the water tank until the water pipe is full of cooling water. The bottom of the hollow box is suspended, rotating with the turbine fan driven by the motor.

[0012] In a preferred embodiment, the outer surface of the screw is rotatably connected to the inner surface of the rear cover, the outer surface of the rear cover is fixedly connected to the back of the machine body, the inner surface of the pile is threadedly connected to the outer surface of the screw, the outer surface of the air cylinder is fixedly connected to the outer surface of the rear cover, the inner surface of the air cylinder is fixedly connected to the top end of the bend, the outer surface of the rear cover is fixedly connected to the outer surface of the fixing rod, the back of the pile is fixedly connected to the outer surface of the pull rod, and the outer surface of the compression spring is fixedly connected to the outer surface of the rear cover. Cold air from the outside is drawn into the interior of the machine body through the through hole at the lower right of the machine body, and then enters the interior of the hollow box through the through slot at the lower left of the hollow box. The partition not only prevents dust but also slows down the airflow.

[0013] In a preferred embodiment, the cooling device includes a water tank, a water pipe fixedly connected to the outer surface of the water tank, a hollow box fixedly connected to the outer surface of the water pipe, a partition fixedly connected to the inner surface of the hollow box, a turbine fan provided on the top of the partition, and a motor rotatably connected to the top of the turbine fan. The hot air undergoes preliminary heat exchange with the cooling water inside the water pipe, and the heat enters the interior of the cavity through the through slot on the top of the hollow box.

[0014] In a preferred embodiment, the outer surface of the water tank is fixedly connected to the outer surface of the body, the inner surface of the body is fixedly connected to the outer surface of the water pipe, the inner surface of the body is fixedly connected to the upper surface of the hollow box, the hollow box is located on the back of the charging head, the lower surface of the motor is fixedly connected to the upper surface of the body, and then discharged from the exhaust slot. Through water flow heat exchange and air heat exchange, the temperature of the equipment during operation is reduced and high temperature overload is prevented.

[0015] A protection method for a split-type charging pile with a protection device includes the following steps:

[0016] Step 1: After the equipment is powered on and identified, open the cover on the outside of the machine and pull out the pile.

[0017] Step 2: Remove the charging head from the top of the cable and begin charging;

[0018] Step 3: Push the pile back into the machine body. The counterweight device prevents the machine body from overturning when the pile body is moved out. The cooling device prevents high temperature overload during the closed operation of the pile body by using fluid cooling. The lubrication device reduces the resistance when the pile body moves by injecting hydraulic oil.

[0019] The beneficial effects of this invention are as follows:

[0020] 1. This invention features a machine body that, when in use, involves rotating the cover plate and pulling out the pile body via a handle. The roller at the left end of the telescopic rod rolls, removing the charging head from the top of the cable for charging. During the pulling process, a counterweight prevents the equipment's center of gravity from shifting outwards, thus preventing overturning. A lubrication device continuously injects oil to reduce resistance during movement. A cooling device draws cold air into the cavity, and through fluid exchange, the heat inside the equipment is carried out through the exhaust vent using hot air. A ramp prevents dust from entering the equipment. The top plate, while preventing dust, guides external water flow from the curved surface at the top of the top plate to the interior of the cooling device. A display screen shows charging information. The concealed pile body effectively isolates the equipment from the influence of the external environment.

[0021] 2. This invention incorporates a lubrication device. When the equipment is in use, the piston slides upward, the tension spring extends, the one-way valve slides downward relative to the piston, the through hole in the piston wall closes, the retaining ring moves upward, and the lubricating oil inside the oil injection pipe is injected into the outside of the tension spring. Subsequently, the piston moves downward, and under the action of oil pressure, the through hole outside the one-way valve opens, and the lubricating oil outside the tension spring is injected into the top of the piston. As the piston moves upward a second time, the one-way valve closes, and the lubricating oil is injected into the inside of the oil groove through the three-way pipe. The slide rails are arranged in a suspended, intermittent manner, and the lubricating oil is injected into the outside of the pile body through the gaps for lubrication, facilitating the pulling of the pile body.

[0022] 3. This invention incorporates a counterweight device. When the equipment is in use, the pulley on the outside of the rear cover drives the screw to rotate. Due to the threaded connection, the screw assists in pushing out the outward-moving pile body, which in turn pulls out the pull rod inside the air cylinder. Compressed air is forced into the inside of the bend, and the push rod extends out. The push rod pushes the counterweight plate to slide along the outer surface of the fixed rod. The compression spring compresses and contracts. Through the movement of the counterweight plate, a two-force balance is achieved with the outward-moving pile body, adjusting the center of gravity position, preventing the equipment from tipping over, and improving stability.

[0023] 4. This invention incorporates a cooling device. When the equipment is in use, rainwater from rainy weather flows along the arc surface of the top plate into the water tank. Water can also be automatically added to the tank until the water pipes are full of cooling water. The bottom of the hollow box is suspended. As the motor drives the turbine fan, cool air from the outside is drawn into the machine through the through-hole on the lower right side. It then enters the hollow box through the through-slot on the lower left side. The partition prevents dust while slowing the airflow. The hot air undergoes initial heat exchange with the cooling water inside the water pipes. Heat enters the cavity through the through-slot at the top of the hollow box and is then discharged through the exhaust vent. This dual approach of water and air heat exchange reduces the operating temperature of the equipment and prevents overheating. Attached Figure Description

[0024] Figure 1 This is the front view of the present invention;

[0025] Figure 2This is a front view of the present invention;

[0026] Figure 3 This is a cross-sectional view of the present invention;

[0027] Figure 4 This is a schematic diagram of the internal structure of the body of the present invention;

[0028] Figure 5 This is a schematic diagram of the lubrication device of the present invention;

[0029] Figure 6 This is a schematic diagram of the counterweight device of the present invention;

[0030] Figure 7 This is a schematic diagram of the cooling device of the present invention.

[0031] In the diagram: 1. Body; 2. Cover plate; 3. Pile body; 4. Handle; 5. Display screen; 6. Top plate; 7. Cable; 8. Charging head; 9. Slide rail; 10. Telescopic rod; 11. Roller; 12. Oil tank; 13. Counterweight device; 14. Exhaust duct; 15. Cavity; 16. Slope plate; 17. Cooling device; 18. Lubrication device; 20. Oil injection pipe; 21. Sealing cylinder; 22. Piston; 23. One-way valve; 24. Tension spring; 25. Retaining ring; 26. T-pipe; 30. Rear cover; 31. Reel; 32. Screw; 33. Air pump; 34. Pull rod; 35. Bend; 36. Top rod; 37. Compression spring; 38. Counterweight plate; 39. Fixing rod; 40. Water tank; 41. Water pipe; 42. Hollow box; 43. Partition plate; 44. Turbine fan; 45. Motor. Detailed Implementation

[0032] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.

[0033] Example 1:

[0034] Please see Figure 1 - Figure 7This invention provides a technical solution: a split-type charging pile with a protection device, comprising a body 1, a cover plate 2 rotatably connected to the outer surface of the body 1, a pile body 3 disposed on the back of the cover plate 2, a handle 4 fixedly connected to the outer surface of the pile body 3, a display screen 5 disposed on the top of the handle 4, a top plate 6 disposed on the top of the display screen 5, a cable 7 disposed at the bottom of the top plate 6, a charging head 8 fixedly connected to the top of the cable 7, a slide rail 9 disposed at the bottom of the charging head 8, a telescopic rod 10 disposed on the right side of the slide rail 9, a roller 11 fixedly connected to the left end of the telescopic rod 10, and an oil groove 12 disposed at the bottom of the roller 11; a counterweight device 13 disposed inside the body 1, an exhaust groove 14 disposed on the top of the counterweight device 13, a cavity 15 disposed at the bottom of the exhaust groove 14, a ramp 16 disposed inside the cavity 15, a cooling device 17 disposed on the right side of the ramp 16, and a lubrication device 18 disposed at the bottom of the cooling device 17. The bottom end of the cable 7 is fixedly connected to the outer surface of the pile body 3, the outer surface of the charging head 8 is inserted into the outer surface of the pile body 3, the oil trough 12 is opened in the wall at the bottom of the machine body 1, and the inner surface of the machine body 1 is fixedly connected to the outer surface of the slide rail 9.

[0035] Rotate the cover plate 2, pull out the pile body 3 through the handle 4, the roller 11 at the left end of the telescopic rod 10 rolls, take out the charging head 8 at the top of the cable 7, and start the charging operation. During the pulling process, the counterweight device 13 prevents the center of gravity of the equipment from shifting outward and causing overturning. The lubrication device 18 reduces the resistance during movement by continuously injecting oil. The cooling device 17 draws cold air into the cavity 15. Through fluid exchange, the heat inside the equipment is carried by hot air and discharged from the exhaust chute 14. The ramp plate 16 prevents dust from entering the equipment. The top plate 6, while preventing dust, can guide the external water flow from the arc surface at the top of the top plate 6 to the interior of the cooling device 17. The display screen 5 displays charging information. The hidden pile body 3 can effectively isolate the influence of the external environment.

[0036] The right end of the telescopic rod 10 is fixedly connected to the inner surface of the body 1. The outer surface of the roller 11 is rolledly connected to the outer surface of the pile 3. The lower surface of the pile 3 is slidably connected to the outer surface of the slide rail 9. The lower surface of the top plate 6 is fixedly connected to the upper surface of the body 1. The outer surface of the display screen 5 is fixedly connected to the outer surface of the pile 3. The exhaust groove 14 is opened in the wall of the body 1. The cavity 15 is opened in the wall of the body 1. The lubrication device 18 is fixedly connected to the lower surface of the body 1. The lubrication device 18 includes an oil injection pipe 20. A sealing cylinder 21 is fixedly connected to the right end of the oil injection pipe 20. A piston 22 is slidably connected to the inner surface of the sealing cylinder 21. A one-way valve 23 is slidably connected to the inner surface of the piston 22. A tension spring 24 is provided at the bottom of the one-way valve 23. A retaining ring 25 is provided outside the tension spring 24. A three-way pipe 26 is provided at the top of the retaining ring 25.

[0037] Piston 22 slides upward, tension spring 24 extends, one-way valve 23 slides downward relative to piston 22, the through hole in the piston 22 wall closes, retaining ring 25 moves upward, and lubricating oil inside oil injection pipe 20 is injected into the outside of tension spring 24. Then piston 22 moves downward, and under the action of oil pressure, the through hole outside one-way valve 23 opens, and lubricating oil outside tension spring 24 is injected into the top of piston 22. As piston 22 moves upward a second time, one-way valve 23 closes, and lubricating oil is injected into the inside of oil groove 12 through three-way pipe 26. The slide rail 9 adopts a suspended intermittent arrangement, and lubricating oil is injected into the outside of pile body 3 from the gap for lubrication, which facilitates the pulling of pile body 3.

[0038] The upper surface of the sealing cylinder 21 is fixedly connected to the lower surface of the machine body 1. The bottom end of the tension spring 24 is fixedly connected to the inner surface of the sealing cylinder 21. The outer surfaces of the piston 22 and the retaining ring 25 are slidably connected to the outer surface of the sealing cylinder 21. The bottom end of the three-way pipe 26 is fixedly connected to the inner surface of the sealing cylinder 21. The two ends of the top of the three-way pipe 26 are connected to the inside of the oil tank 12. The outer surface of the three-way pipe 26 is fixedly connected to the inner surface of the machine body 1. The counterweight device 13 includes a rear cover 30, a belt disc 31 is provided on the outside of the rear cover 30, a screw 32 is fixedly connected to the outer surface of the belt disc 31, an air cylinder 33 is provided on the top of the screw 32, a pull rod 34 is slidably connected to the inner surface of the air cylinder 33, a bend 35 is provided at the bottom of the pull rod 34, a top rod 36 is slidably connected to the inner surface of the bottom end of the bend 35, a counterweight plate 38 is fixedly connected to the outer surface of the top rod 36, a fixing rod 39 is slidably connected to the inner surface of the counterweight plate 38, and a compression spring 37 is provided on the outside of the fixing rod 39.

[0039] The disc 31 on the outside of the rear cover 30 drives the screw 32 to rotate. Due to the threaded connection, the screw 32 assists in pushing out the pile 3, which moves outward, and pulls out the pull rod 34 inside the air cylinder 33. Compressed air is squeezed into the inside of the bend 35, and the push rod 36 extends. The push rod 36 pushes the counterweight plate 38 to slide along the outer surface of the fixed rod 39. The compression spring 37 compresses and contracts. Through the movement of the counterweight plate 38, it achieves a two-force balance with the outward-moving pile 3, adjusts the center of gravity position, prevents the equipment from tipping over, and improves stability.

[0040] The outer surface of the screw 32 is rotatably connected to the inner surface of the rear cover 30, the outer surface of the rear cover 30 is fixedly connected to the back of the body 1, the inner surface of the pile 3 is threadedly connected to the outer surface of the screw 32, the outer surface of the air cylinder 33 is fixedly connected to the outer surface of the rear cover 30, the inner surface of the air cylinder 33 is fixedly connected to the top end of the bent pipe 35, the outer surface of the rear cover 30 is fixedly connected to the outer surface of the fixing rod 39, the back of the pile 3 is fixedly connected to the outer surface of the pull rod 34, and the outer surface of the compression spring 37 is fixedly connected to the outer surface of the rear cover 30. The cooling device 17 includes a water tank 40, a water pipe 41 is fixedly connected to the outer surface of the water tank 40, a hollow box 42 is fixedly connected to the outer surface of the water pipe 41, a partition 43 is fixedly connected to the inner surface of the hollow box 42, a turbine fan 44 is provided on the top of the partition 43, and a motor 45 is rotatably connected to the top of the turbine fan 44. The outer surface of the water tank 40 is fixedly connected to the outer surface of the body 1, the inner surface of the body 1 is fixedly connected to the outer surface of the water pipe 41, the inner surface of the body 1 is fixedly connected to the upper surface of the hollow box 42, the hollow box 42 is located on the back of the charging head 8, and the lower surface of the motor 45 is fixedly connected to the upper surface of the body 1.

[0041] Rainwater in rainy weather flows along the arc surface of the top plate 6 into the water tank 40. Water can also be automatically added into the water tank 40 until the water pipe 41 is full of cooling water. The bottom of the hollow box 42 is suspended. As the motor 45 drives the turbine fan 44 to rotate, cold air from the outside is drawn into the interior of the machine body 1 through the through hole on the lower right side. Then, it enters the interior of the hollow box 42 through the through slot on the lower left side. The partition 43 not only prevents dust but also slows down the air flow. The hot air undergoes preliminary heat exchange with the cooling water inside the water pipe 41. The heat enters the interior of the cavity 15 through the through slot at the top of the hollow box 42 and is then discharged from the exhaust slot 14. Through the combination of water flow heat exchange and air heat exchange, the temperature of the equipment during operation is reduced, preventing high temperature overload.

[0042] A protection method for a split-type charging pile with a protection device, using a split-type charging pile with a protection device according to any one of claims 1-9, includes the following steps:

[0043] Step 1: After the equipment is powered on and identified, open the cover plate 2 on the outside of the machine body 1 and pull out the pile body 3.

[0044] Step 2: Remove the charging head 8 from the top of cable 7 and begin charging;

[0045] Step 3: Push the pile body 3 back into the interior of the machine body 1. When the pile body 3 is moved out, the counterweight device 13 prevents the machine body 1 from overturning. The cooling device 17 prevents the pile body 3 from overheating during closed operation by using fluid cooling. The lubrication device 18 reduces the resistance when the pile body 3 moves by injecting hydraulic oil.

[0046] Working principle:

[0047] When the equipment is in use, rotate the cover plate 2 and pull out the pile body 3 through the handle 4. The roller 11 at the left end of the telescopic rod 10 rolls to take out the charging head 8 at the top of the cable 7 for charging. During the pulling process, the counterweight device 13 prevents the equipment's center of gravity from shifting outward and causing overturning. The lubrication device 18 reduces the resistance during movement by continuously injecting oil. The cooling device 17 draws cold air into the cavity 15. Through fluid exchange, the heat inside the equipment is carried out from the exhaust chute 14 by the hot air. The ramp plate 16 prevents dust from entering the equipment. The top plate 6, while preventing dust, can guide the flow of water from the outside from the arc surface at the top of the top plate 6 to the interior of the cooling device 17. The display screen 5 displays charging information. The hidden pile body 3 can effectively isolate the influence of the external environment.

[0048] Piston 22 slides upward, tension spring 24 extends, one-way valve 23 slides downward relative to piston 22, the through hole in the piston 22 wall closes, retaining ring 25 moves upward, and lubricating oil inside oil injection pipe 20 is injected into the outside of tension spring 24. Then piston 22 moves downward, and under the action of oil pressure, the through hole outside one-way valve 23 opens, and lubricating oil outside tension spring 24 is injected into the top of piston 22. As piston 22 moves upward a second time, one-way valve 23 closes, and lubricating oil is injected into the inside of oil groove 12 through three-way pipe 26. The slide rail 9 adopts a suspended intermittent arrangement, and lubricating oil is injected into the outside of pile body 3 from the gap for lubrication, which facilitates the pulling of pile body 3.

[0049] The disc 31 on the outside of the rear cover 30 drives the screw 32 to rotate. Due to the threaded connection, the screw 32 assists in pushing out the pile 3, which moves outward, and pulls out the pull rod 34 inside the air cylinder 33. Compressed air is squeezed into the inside of the bend 35, and the push rod 36 extends. The push rod 36 pushes the counterweight plate 38 to slide along the outer surface of the fixed rod 39. The compression spring 37 compresses and contracts. Through the movement of the counterweight plate 38, it achieves a two-force balance with the outward-moving pile 3, adjusts the center of gravity position, prevents the equipment from tipping over, and improves stability.

[0050] Rainwater in rainy weather flows along the arc surface of the top plate 6 into the water tank 40. Water can also be automatically added into the water tank 40 until the water pipe 41 is full of cooling water. The bottom of the hollow box 42 is suspended. As the motor 45 drives the turbine fan 44 to rotate, cold air from the outside is drawn into the interior of the machine body 1 through the through hole on the lower right side. Then, it enters the interior of the hollow box 42 through the through slot on the lower left side. The partition 43 not only prevents dust but also slows down the air flow. The hot air undergoes preliminary heat exchange with the cooling water inside the water pipe 41. The heat enters the interior of the cavity 15 through the through slot at the top of the hollow box 42 and is then discharged from the exhaust slot 14. Through the combination of water flow heat exchange and air heat exchange, the temperature of the equipment during operation is reduced, preventing high temperature overload.

[0051] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A split-type charging pile with a protection device, comprising a body (1), characterized in that: The outer surface of the body (1) is rotatably connected to a cover plate (2), a pile body (3) is provided on the back of the cover plate (2), a handle (4) is fixedly connected to the outer surface of the pile body (3), a display screen (5) is provided on the top of the handle (4), a top plate (6) is provided on the top of the display screen (5), a cable (7) is provided at the bottom of the top plate (6), a charging head (8) is fixedly connected to the top of the cable (7), a slide rail (9) is provided at the bottom of the charging head (8), a telescopic rod (10) is provided on the right side of the slide rail (9), a roller (11) is fixedly connected to the left end of the telescopic rod (10), and an oil groove (12) is provided at the bottom of the roller (11). The body (1) is provided with a counterweight device (13) inside. The top of the counterweight device (13) is provided with an exhaust groove (14). The bottom of the exhaust groove (14) is provided with a cavity (15). The cavity (15) is provided with a ramp plate (16). The right side of the ramp plate (16) is provided with a cooling device (17). The bottom of the cooling device (17) is provided with a lubrication device (18). The counterweight device (13) includes a rear cover (30), a belt disc (31) is provided on the outside of the rear cover (30), a screw (32) is fixedly connected to the outer surface of the belt disc (31), an air cylinder (33) is provided on the top of the screw (32), a pull rod (34) is slidably connected to the inner surface of the air cylinder (33), a bend (35) is provided at the bottom of the pull rod (34), a top rod (36) is slidably connected to the inner surface of the bottom end of the bend (35), a counterweight plate (38) is fixedly connected to the outer surface of the top rod (36), a fixing rod (39) is slidably connected to the inner surface of the counterweight plate (38), and a compression spring (37) is provided on the outside of the fixing rod (39). The outer surface of the screw (32) is rotatably connected to the inner surface of the rear cover (30), the outer surface of the rear cover (30) is fixedly connected to the back of the body (1), the inner surface of the pile (3) is threadedly connected to the outer surface of the screw (32), the outer surface of the air cylinder (33) is fixedly connected to the outer surface of the rear cover (30), the inner surface of the air cylinder (33) is fixedly connected to the top end of the bend (35), the outer surface of the rear cover (30) is fixedly connected to the outer surface of the fixing rod (39), the back of the pile (3) is fixedly connected to the outer surface of the pull rod (34), and the outer surface of the compression spring (37) is fixedly connected to the outer surface of the rear cover (30).

2. A split-type charging pile with a protection device according to claim 1, characterized in that: The bottom end of the cable (7) is fixedly connected to the outer surface of the pile body (3), the outer surface of the charging head (8) is inserted into the outer surface of the pile body (3), the oil groove (12) is opened in the wall at the bottom of the machine body (1), and the inner surface of the machine body (1) is fixedly connected to the outer surface of the slide rail (9).

3. A split-type charging pile with a protection device according to claim 1, characterized in that: The right end of the telescopic rod (10) is fixedly connected to the inner surface of the body (1), the outer surface of the roller (11) is rolledly connected to the outer surface of the pile (3), the lower surface of the pile (3) is slidably connected to the outer surface of the slide rail (9), the lower surface of the top plate (6) is fixedly connected to the upper surface of the body (1), and the outer surface of the display screen (5) is fixedly connected to the outer surface of the pile (3); the exhaust groove (14) is opened in the wall of the body (1), the cavity (15) is opened in the wall of the body (1), and the lubrication device (18) is fixedly connected to the lower surface of the body (1).

4. A split-type charging pile with a protection device according to claim 1, characterized in that: The lubrication device (18) includes an oil injection pipe (20), a sealing cylinder (21) is fixedly connected to the right end of the oil injection pipe (20), a piston (22) is slidably connected to the inner surface of the sealing cylinder (21), a one-way valve (23) is slidably connected to the inner surface of the piston (22), a tension spring (24) is provided at the bottom of the one-way valve (23), a retaining ring (25) is provided outside the tension spring (24), and a three-way pipe (26) is provided at the top of the retaining ring (25).

5. A split-type charging pile with a protection device according to claim 4, characterized in that: The upper surface of the sealing cylinder (21) is fixedly connected to the lower surface of the machine body (1), the bottom end of the tension spring (24) is fixedly connected to the inner surface of the sealing cylinder (21), the outer surfaces of the piston (22) and the retaining ring (25) are slidably connected to the outer surface of the sealing cylinder (21), the bottom end of the three-way pipe (26) is fixedly connected to the inner surface of the sealing cylinder (21), the two ends of the top of the three-way pipe (26) are connected to the inside of the oil groove (12), and the outer surface of the three-way pipe (26) is fixedly connected to the inner surface of the machine body (1).

6. A split-type charging pile with a protection device according to claim 1, characterized in that: The cooling device (17) includes a water tank (40), a water pipe (41) is fixedly connected to the outer surface of the water tank (40), a hollow box (42) is fixedly connected to the outer surface of the water pipe (41), a partition (43) is fixedly connected to the inner surface of the hollow box (42), a turbo fan (44) is provided on the top of the partition (43), and a motor (45) is rotatably connected to the top of the turbo fan (44).

7. A split-type charging pile with a protection device according to claim 6, characterized in that: The outer surface of the water tank (40) is fixedly connected to the outer surface of the body (1), the inner surface of the body (1) is fixedly connected to the outer surface of the water pipe (41), the inner surface of the body (1) is fixedly connected to the upper surface of the hollow box (42), the hollow box (42) is located on the back of the charging head (8), and the lower surface of the motor (45) is fixedly connected to the upper surface of the body (1).

8. A protection method for a split-type charging pile with a protection device, characterized in that, The use of a split-type charging pile with a protection device as described in any one of claims 1-7 includes the following steps: Step 1: After the equipment is powered on and identified, open the cover plate (2) on the outside of the machine body (1) and pull out the pile body (3). Step 2: Remove the charging head (8) from the top of the cable (7) and start charging; Step 3: Push the pile body (3) back into the interior of the machine body (1). When the pile body (3) moves out, the counterweight device (13) prevents the machine body (1) from overturning. The cooling device (17) prevents the pile body (3) from overheating during closed operation by means of fluid cooling. The lubrication device (18) reduces the resistance when the pile body (3) moves by injecting hydraulic oil.

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