New energy charging pile mechanical protection device

Abstract

The invention is applied to the technical field of charging piles, and particularly discloses a new energy charging pile mechanical protection device which comprises a base, the base is of a C-shaped structure, a protection shell is fixedly installed on the upper surface of the base, and the front surface and the lower surface of the protection shell are open. According to the mechanical protection device for the new energy charging pile, a protection unit structure composed of a rubber protection plate and an aluminum alloy reinforcing layer is arranged to perform preliminary protection on the outer surface of the protection shell, and the rubber protection plate can buffer external impact force; the strength of the protection unit structure is enhanced through the aluminum alloy reinforcing layer of the regular hexagon structure, meanwhile, the lower buffering plate and the upper buffering plate are arranged on the protection unit structure on the front surface of the charging pile body, and the lower buffering plate and the upper buffering plate are installed in a sliding mode. And the buffer lower plate and the buffer upper plate synchronously displace to perform primary buffer on collision.

Description

Technical Field

[0001] This invention relates to the field of charging pile technology, specifically to a mechanical protection device for new energy charging piles. Background Technology

[0002] A charging pile is a power electronic device that provides power to new energy electric vehicles. It is connected to the power grid and uses a conduction method through a specific charging interface to charge the power battery of the electric vehicle with electrical energy from the power grid. Charging piles are a key infrastructure for the development of the new energy vehicle industry and affect the speed of market promotion and popularization of new energy vehicles. With the continuous and rapid growth of the number of new energy vehicles, the demand for new energy charging piles has also risen sharply.

[0003] Charging stations are typically installed in outdoor public areas and are exposed to the external environment, making them susceptible to vehicle collisions. Due to improper driver operation or unexpected situations, a vehicle may collide with a charging station while it is charging. This can damage the charging station's outer casing, deform the charging interface, and affect its normal charging function. In severe cases, it can cause serious safety accidents such as short circuits and fires inside the charging station, posing a significant threat to the safety of people and property in the surrounding area. Summary of the Invention

[0004] The purpose of this invention is to provide a mechanical protection device for new energy charging piles, so as to solve the problem mentioned in the background art that charging piles located on the outside can be damaged due to vehicle collisions.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a mechanical protection device for a new energy charging pile, comprising a base, the base having a C-shaped structure, a protective shell fixedly installed on the upper surface of the base, the front and lower surfaces of the protective shell being open, the protective shell wrapping around the rear surface of the charging pile body, the front surface of the charging pile body being open, a protective unit structure being provided on the outer surface of the protective shell, the protective unit structure achieving preliminary protection of the outer surface of the protective shell through a protective plate and a reinforcing layer, the protective unit structure comprising a protective plate, the protective plate and a reinforcing layer, the protective plate being made of rubber, two protective plates being arranged in parallel, a reinforcing layer being fixedly installed between the two protective plates, the reinforcing layer being made of aluminum alloy, the reinforcing layer having a densely laid hollow regular hexagonal structure, the reinforcing layer and the protective plates on both sides together constituting a protective unit structure;

[0006] Preferably, the protective unit structure is provided with 4 units, of which 3 protective unit structures are fixedly installed on the rear surface and the two side surfaces of the protective shell respectively, and the 3 protective unit structures are fixedly connected to each other. The two sides of the other protective unit structure are fixedly connected to the protective unit structures connected to the two side surfaces of the protective shell respectively. The 4 protective unit structures together form a hollow square structure to provide preliminary protection for the outer surface of the protective shell.

[0007] By adopting the above technical solution, the protective unit structure can provide initial protection on the outer surface of the protective shell.

[0008] Preferably, the front surface of the charging pile body is provided with a buffer anti-collision structure, which buffers and reduces the impact of collisions during vehicle reversing through a lower buffer plate and an upper buffer plate.

[0009] By adopting the above technical solution, the buffer and anti-collision structure can buffer and reduce the impact of vehicle collisions.

[0010] Preferably, the buffer anti-collision structure includes a connecting cavity, which is a hollow semi-cylindrical structure with one open end. The surface of the connecting cavity is fixedly installed on the inner surface of the base. The connecting cavity is located in the gap between the base and the charging pile body. Two connecting cavities are symmetrically arranged. The inner walls of the two connecting cavities are slidably connected to L-shaped rods. The other end of the L-shaped rods connected by the two connecting cavities is fixedly connected to the lower surface of the same buffer lower plate. A buffer upper plate is provided above the buffer lower plate.

[0011] The above technical solution uses a lower buffer plate and an upper buffer plate to buffer the impact of vehicle collisions.

[0012] Preferably, a connecting plate is provided between the lower buffer plate and the upper buffer plate, and a sliding groove is provided through the surface of the connecting plate. The sliding groove on the surface of the connecting plate is slidably connected to the protrusion on the upper surface of the lower buffer plate. The upper surface of the connecting plate and the lower surface of the upper buffer plate are fixedly connected. The rear surfaces of the lower buffer plate and the upper buffer plate are provided with a layered buffer structure. The layered buffer structure realizes the buffering process of different heights of the colliding vehicle through the lower airbag and the upper airbag.

[0013] By adopting the above technical solution, the expansion of the vehicle can be buffered in layers through the sliding installation of the lower buffer plate and the upper buffer plate.

[0014] Preferably, the layered buffer structure includes a lower airbag, the surface of which is fixedly mounted on the rear surface of the lower buffer plate. The lower airbag is connected to the upper airbag through a pipe. The surface of the upper airbag is fixedly mounted on the rear surface of the upper buffer plate. The lower and upper airbags are inflatable structures. A protrusion is aligned on one side of the lower airbag. The cross-section of the protrusion is trapezoidal. The protrusion is fixedly mounted on the surface of the protective unit structure on the front surface of the charging pile body. A partition plate is provided above the protrusion. The partition plate is connected to the surface of the protective unit structure on the front surface of the charging pile body through a shock-absorbing spring. The partition plate is aligned with the upper airbag.

[0015] By adopting the above technical solution, the lower and upper airbags can provide further cushioning and shock absorption during vehicle collisions.

[0016] Preferably, ventilation and heat dissipation structures are provided on both sides of the protective shell. The ventilation and heat dissipation structures guide the external air through heat dissipation holes and guide plates to assist the heat dissipation process of the charging pile body.

[0017] By adopting the above technical solution, the ventilation and heat dissipation structure can assist in the heat dissipation of the charging pile body.

[0018] Preferably, the ventilation and heat dissipation structure includes a heat dissipation through hole, which is disposed through the side surface of the protective shell. A guide plate is rotatably mounted on the inner wall of the heat dissipation through hole. The rotating shaft of the guide plate is fixedly connected to a driven gear through the inner wall of the heat dissipation through hole. The driven gear is rotatably disposed in a square through hole on the surface of the protective shell. A guide plate is arranged parallel inside the heat dissipation through hole. Each guide plate is connected to a driven gear. The driven gear meshes with the same drive rack. The upper end of the drive rack slides through the upper surface of the protective shell.

[0019] By adopting the above technical solution, the rotation of the guide plate can be achieved through the cooperation between the driven gear and the drive rack.

[0020] Preferably, the surface of the drive rack is provided with a drive structure, which automatically controls the drive rack according to the temperature inside the protective shell.

[0021] Using the above technical solution, the drive structure can drive the guide plate through temperature.

[0022] Preferably, the driving structure includes a return spring disposed on the outer surface of the driving rack. One end of the return spring is fixed to the surface of the driving rack, and the other end of the return spring is fixed to the inner wall of the protective housing. A magnetic block is fixedly installed at the lower end of the driving rack and is slidably connected to the inner wall of the protective housing. An electromagnet is disposed below the magnetic block and is fixedly connected to the inner wall of the protective housing. The electromagnet and the magnetic block have magnetic pole repulsion. A thermistor with an NTC negative temperature coefficient is connected in series with the coil of the electromagnet. The electromagnet, the thermistor, and the power supply are connected in series to drive the movement of the rack.

[0023] By adopting the above technical solution, the thermistor can automatically control the start and stop of the electromagnet according to the temperature.

[0024] Compared with the prior art, the beneficial effects of the present invention are: the mechanical protection device for the new energy charging pile:

[0025] 1. In this invention, a protective unit structure consisting of a rubber protective plate and an aluminum alloy reinforcing layer provides initial protection on the outer surface of the protective shell. The rubber protective plate can buffer external impact forces, while the hexagonal aluminum alloy reinforcing layer increases the strength of the protective unit structure. Simultaneously, a lower buffer plate and an upper buffer plate are installed at the protective unit structure on the front surface of the charging pile body. The lower buffer plate and the upper buffer plate are slidably installed together. When a vehicle reverses and collides, the lower buffer plate and the upper buffer plate move synchronously to buffer the collision. The movement of the lower buffer plate causes the air in the lower airbag to be squeezed into the upper airbag, causing the upper airbag to expand and drive the upper buffer plate to extend outward. At different heights, the collision is buffered, the collision energy is absorbed, and the damage to the charging pile is reduced.

[0026] 2. In this invention, heat dissipation holes are provided on both sides of the protective shell. A guide plate is rotatably installed on the inner wall of the heat dissipation hole. The guide plate is connected to the driven gear. When the internal temperature of the protective shell rises, the resistance of the NTC negative temperature coefficient thermistor decreases, the current in the circuit is turned on, the electromagnet is energized and starts, and the repulsion between the electromagnet and the magnetic block pushes the drive rack to move upward, driving the driven gear to rotate, so that the guide plate opens, enhancing the air circulation in the protective shell and accelerating heat dissipation. Similarly, when the temperature drops, the electromagnet closes, the return spring resets the drive rack, and the guide plate closes, reducing heat loss, thereby timely dissipating the heat generated during the operation of the charging pile and ensuring that the charging pile works in a suitable temperature environment. Attached Figure Description

[0027] Figure 1 This is a front view structural diagram of the present invention;

[0028] Figure 2 This is a schematic diagram of the rear view structure of the present invention;

[0029] Figure 3 This is a schematic diagram of the protective outer shell structure of the present invention;

[0030] Figure 4 This is a schematic diagram of the structure of the present invention from a bottom view;

[0031] Figure 5 This is a schematic diagram of the protective plate and reinforcing layer structure of the present invention;

[0032] Figure 6 This is a front view schematic diagram of the lower buffer plate and the upper buffer plate of the present invention;

[0033] Figure 7 This is a schematic diagram of the lower and upper airbag structures of the present invention;

[0034] Figure 8 This is a schematic diagram of the guide plate structure of the present invention;

[0035] Figure 9 The present invention Figure 8 Enlarged structural diagram at point A in the middle;

[0036] Figure 10 This is a schematic diagram of the rack and pinion mounting structure of the present invention.

[0037] In the diagram: 1. Base; 2. Protective shell; 3. Charging pile body; 4. Protective plate; 5. Reinforcing layer; 6. Connecting cavity; 7. Lower buffer plate; 8. Upper buffer plate; 9. Connecting plate; 10. Lower airbag; 11. Upper airbag; 12. Protrusion; 13. Divider plate; 14. Heat dissipation hole; 15. Guide plate; 16. Driven gear; 17. Drive rack; 18. Return spring; 19. Magnetic block; 20. Electromagnet; 21. Thermistor. Detailed Implementation

[0038] 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.

[0039] Please see Figures 1-10 The present invention provides a technical solution: a mechanical protection device for a new energy charging pile, comprising a base 1, a protective shell 2, a charging pile body 3, a protective plate 4, a reinforcing layer 5, a connecting cavity 6, a lower buffer plate 7, an upper buffer plate 8, a connecting plate 9, a lower airbag 10, an upper airbag 11, a protrusion 12, a partition plate 13, a heat dissipation hole 14, a guide plate 15, a driven gear 16, a drive rack 17, a return spring 18, a magnetic block 19, an electromagnet 20, and a thermistor 21.

[0040] The base 1 has a C-shaped structure. A protective shell 2 is fixedly installed on the upper surface of the base 1. The front and lower surfaces of the protective shell 2 are open. The protective shell 2 covers the rear surface of the charging pile body 3. The front surface of the charging pile body 3 is open. A protective unit structure is provided on the outer surface of the protective shell 2. The protective unit structure provides initial protection for the outer surface of the protective shell 2 through a protective plate 4 and a reinforcing layer 5. The protective unit structure includes a protective plate 4, a reinforcing layer 5, and a rubber plate. Two protective plates 4 are arranged in parallel, and a reinforcing layer 5 is fixedly installed between the two protective plates 4. The reinforcing layer 5 is made of aluminum alloy and has a densely packed hollow regular hexagonal structure. The reinforcing layer 5 and the protective plates 4 on both sides together form a protective unit structure. There are 4 protective unit structures. Three of the protective unit structures are fixedly installed on the rear surface and the two side surfaces of the protective shell 2, and the three protective unit structures are fixedly connected to each other. The two sides of the other protective unit structure are fixedly connected to the protective unit structures connected to the two side surfaces of the protective shell 2. The four protective unit structures together form a hollow square structure to provide preliminary protection for the outer surface of the protective shell 2.

[0041] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, when using this device, the C-shaped base 1 is fixed to the ground with bolts, so that the direction of the base 1 faces the front surface of the charging pile body 3. At this time, the protective shell 2 fixed on the upper surface of the base 1 wraps around the charging pile body 3 from the rear surface, forming a semi-enclosed structure, which makes it convenient for users to operate the charging interface. The outer surface of the protective shell 2 is fixedly installed with a protective unit structure, which consists of two rubber protective plates 4 and an aluminum alloy reinforcing layer 5 in the interlayer, covering the outer surface of the protective shell 2 and providing initial protection for the protective shell 2. The rubber protective plates 4 buffer the external impact force, while the hexagonal aluminum alloy reinforcing layer 5 increases the strength of the protective unit structure.

[0042] The front surface of the charging pile body 3 is equipped with a buffer anti-collision structure. The buffer anti-collision structure buffers and reduces shocks during vehicle reversing through the lower buffer plate 7 and the upper buffer plate 8. The buffer anti-collision structure includes a connecting cavity 6, which is a hollow semi-cylindrical structure with one open end. The surface of the connecting cavity 6 is fixedly installed on the inner surface of the base 1. The connecting cavity 6 is located in the gap between the base 1 and the charging pile body 3. Two connecting cavities 6 are symmetrically arranged. The inner walls of the two connecting cavities 6 are slidably connected to L-shaped rods. The other ends of the L-shaped rods connected by the two connecting cavities 6 are fixedly connected to the lower surface of the same lower buffer plate 7. The upper buffer plate 8 is provided above the lower buffer plate 7. A connecting plate 9 is provided between the lower buffer plate 7 and the upper buffer plate 8. A sliding groove is provided through the surface of the connecting plate 9. The sliding groove on the surface of the connecting plate 9 is slidably connected to the protrusion on the upper surface of the lower buffer plate 7. The upper surface of the connecting plate 9 and the lower surface of the upper buffer plate 8 are fixedly connected. The rear surfaces of the lower buffer plate 7 and the upper buffer plate 8 are provided with a layered buffer structure. The layered buffer structure realizes the buffering process of different heights of the colliding vehicle through the lower airbag 10 and the upper airbag 11. The layered buffer structure includes the lower airbag 10, the surface of the lower airbag 10 is fixedly installed on the rear surface of the lower buffer plate 7, the lower airbag 10 is connected to the upper airbag 11 through the pipe, and the surface of the upper airbag 11 is fixedly installed on the rear surface of the upper buffer plate 8. The lower airbag 10 and the upper airbag 11 are inflatable structures. A protrusion 12 is provided on one side of the lower airbag 10. The cross section of the protrusion 12 is a trapezoidal structure. The protrusion 12 is fixedly installed on the protective unit structure surface provided on the front surface of the charging pile body 3. A partition plate 13 is provided above the protrusion 12. The partition plate 13 is connected to the protective unit structure surface provided on the front surface of the charging pile body 3 through the shock absorption spring. The partition plate 13 is aligned with the upper airbag 11.

[0043] like Figure 4 , Figure 6 and Figure 7 As shown, when the vehicle collides with the front surface of the charging pile body 3 during reversing, the lower buffer plate 7 receives a thrust and moves towards the charging pile body 3. At this time, the L-shaped rod on the lower surface of the lower buffer plate 7 slides inside the connecting cavity 6, while the lower buffer plate 7 drives the connecting plate 9 and the upper buffer plate 8 connected to the upper surface to move synchronously. When the lower buffer plate 7 moves, the lower airbag 10 on the surface of the lower buffer plate 7 moves and contacts the protrusion 12. Under the continuous compression of the lower buffer plate 7 and the protrusion 12, the air inside the lower airbag 10 enters the interior of the upper airbag 11 along the through pipe, causing the upper airbag 11 to inflate. The upper airbag 11 pushes the upper buffer plate 8 and the connecting plate 9 to slide outward on the upper surface of the lower buffer plate 7, creating a reverse force on the vehicle, thereby achieving the effect of buffering and shock absorption.

[0044] Ventilation and heat dissipation structures are respectively provided on both sides of the protective shell 2. The ventilation and heat dissipation structures guide the external air through heat dissipation holes 14 and guide plates 15 to assist the heat dissipation process of the charging pile body 3. The ventilation and heat dissipation structures include heat dissipation holes 14, which are provided through the side surface of the protective shell 2. A guide plate 15 is rotatably installed on the inner wall of the heat dissipation hole 14. The rotating shaft of the guide plate 15 passes through the inner wall of the heat dissipation hole 14 and is fixedly connected to the driven gear 16. The driven gear 16 is rotatably installed in a square through hole on the surface of the protective shell 2. The guide plates 15 are arranged parallel inside the heat dissipation hole 14. Each guide plate 15 is connected to a driven gear 16. The driven gear 16 meshes with the same drive rack 17. The upper end of the drive rack 17 slides through the upper surface of the protective shell 2. A drive structure is provided on the surface of the rack 17. The drive structure realizes automatic control of the drive rack 17 according to the temperature inside the protective shell 2. The drive structure includes a return spring 18, which is provided on the outer surface of the drive rack 17. One end of the return spring 18 is fixed to the surface of the drive rack 17, and the other end of the return spring 18 is fixed to the inner wall of the protective shell 2. A magnetic block 19 is fixedly installed at the lower end of the drive rack 17. The magnetic block 19 is slidably connected to the inner wall of the protective shell 2. An electromagnet 20 is provided below the magnetic block 19. The electromagnet 20 is fixedly connected to the inner wall of the protective shell 2. The magnetic poles of the electromagnet 20 and the magnetic block 19 repel each other. A thermistor 21 is connected in series with the coil of the electromagnet 20. The thermistor 21 is an NTC negative temperature coefficient. The electromagnet 20, the thermistor 21 and the power supply are connected in series.

[0045] like Figure 3 , Figure 8 , Figure 9 and Figure 10 As shown, the ventilation and heat dissipation process of the device can be realized through the heat dissipation holes 14 provided through both sides of the protective shell 2. When the temperature of the charging pile body 3 rises during operation, the resistance of the thermistor 21 decreases. At this time, the electromagnet 20 is connected to the power supply and starts. The magnetic force of the electromagnet 20 repels the magnetic block 19, so the magnetic block 19 slides upward under the action of the magnetic force. The magnetic block 19 drives the drive rack 17 to move upward. The upward movement of the drive rack 17 drives the return spring 18 to compress. At the same time, the upward movement of the drive rack 17 drives the driven gear 16 on one side to rotate. The driven gear 16 drives the guide plate 15 to rotate and open, so that an inclined ventilation gap is formed between the heat dissipation hole 14 and the guide plate 15. External air flows in through the heat dissipation hole 14 to assist the charging pile body 3 in heat dissipation. Conversely, when the temperature drops, the resistance of the thermistor 21 increases, the electromagnet 20 closes, and the magnetic block 19 loses its magnetic force. Under the action of gravity and the elastic force of the return spring 18, it moves downward, driving the rack 17 to move downward and drive the driven gear 16 to rotate in the opposite direction, so that the guide plate 15 automatically closes, reducing heat loss and ensuring that the charging pile body 3 maintains a stable temperature.

[0046] Working principle: When a vehicle collides with a charging pile, the outer surface of the protective shell 2 is buffered by a protective unit structure consisting of a protective plate 4 and a reinforcing layer 5. The rubber protective plate 4 absorbs energy, while the hexagonal aluminum alloy reinforcing layer 5 enhances strength. At the same time, the lower buffer plate 7 and the upper buffer plate 8, which are set on the front surface of the charging pile body 3, slide backward through the L-shaped rod in the connecting cavity 6. The lower airbag 10 is compressed, and air flows into the upper airbag 11 through the pipe, causing it to expand and push the upper buffer plate 8 outward to buffer, thus achieving layered shock absorption. During the operation of the charging pile body 3, the temperature inside the protective shell 2 rises, the resistance of the thermistor 21 decreases, and the circuit is energized, causing the electromagnet 20 to repel the magnetic block 19, driving the rack 17 to move upward, driving the driven gear 16 to rotate, and the guide plate 15 to open, accelerating air circulation through the heat dissipation hole 14. Conversely, when the temperature drops, the electromagnet 20 loses its magnetic force, and under the elastic force of the return spring 18, the drive rack 17 is reset, and the guide plate 15 is closed, reducing heat loss.

[0047] 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.

Claims

1. A mechanical protective device for a new energy charging pile, comprising a base (1), the base (1) having a C-shaped structure, a protective shell (2) fixedly installed on the upper surface of the base (1), the front and lower surfaces of the protective shell (2) being open, the protective shell (2) wrapping around the rear surface of the charging pile body (3), the front surface of the charging pile body (3) being open, characterized in that: The outer surface of the protective shell (2) is provided with a protective unit structure. The protective unit structure provides preliminary protection to the outer surface of the protective shell (2) through the protective plate (4) and the reinforcing layer (5). The protective unit structure includes a protective plate (4), the protective plate (4) and the reinforcing layer (5). The protective plate (4) is made of rubber. Two protective plates (4) are arranged in parallel. A reinforcing layer (5) is fixedly installed between the two protective plates (4). The reinforcing layer (5) is made of aluminum alloy. The reinforcing layer (5) is a densely laid hollow regular hexagonal structure. The reinforcing layer (5) and the protective plates (4) on both sides together constitute a protective unit structure.

2. The mechanical protection device for a new energy charging pile according to claim 1, characterized in that: The protective unit structure is provided with 4 units, of which 3 units are fixedly installed on the rear surface and the two side surfaces of the protective shell (2) respectively, and the 3 units are fixedly connected to each other. The other 1 unit is fixedly connected to the protective unit structure connected to the two side surfaces of the protective shell (2) respectively. The 4 units together form a hollow square structure to provide initial protection to the outer surface of the protective shell (2).

3. The mechanical protection device for a new energy charging pile according to claim 1, characterized in that: The front surface of the charging pile body (3) is provided with a buffer anti-collision structure. The buffer anti-collision structure buffers and reduces the impact of the vehicle during reversing through the buffer lower plate (7) and the buffer upper plate (8).

4. The mechanical protection device for a new energy charging pile according to claim 3, characterized in that: The buffer anti-collision structure includes a connecting cavity (6), which is a hollow semi-cylindrical structure with one end open. The surface of the connecting cavity (6) is fixedly installed on the inner surface of the base (1). The connecting cavity (6) is located in the gap between the base (1) and the charging pile body (3). Two connecting cavities (6) are symmetrically arranged. The inner walls of the two connecting cavities (6) are respectively slidably connected to L-shaped rods. The other end of the L-shaped rods connected by the two connecting cavities (6) is fixedly connected to the lower surface of the same buffer lower plate (7). A buffer upper plate (8) is provided above the buffer lower plate (7).

5. A mechanical protection device for a new energy charging pile according to claim 4, characterized in that: A connecting plate (9) is provided between the lower buffer plate (7) and the upper buffer plate (8). A sliding groove is provided through the surface of the connecting plate (9). The sliding groove on the surface of the connecting plate (9) is slidably connected to the protrusion on the upper surface of the lower buffer plate (7). The upper surface of the connecting plate (9) and the lower surface of the upper buffer plate (8) are fixedly connected. A layered buffer structure is provided on the rear surface of the lower buffer plate (7) and the upper buffer plate (8). The layered buffer structure realizes the buffering process of different heights of the colliding vehicle through the lower airbag (10) and the upper airbag (11).

6. A mechanical protection device for a new energy charging pile according to claim 5, characterized in that: The layered buffer structure includes a lower airbag (10), the surface of which is fixedly installed on the rear surface of the lower buffer plate (7). The lower airbag (10) is connected to the upper airbag (11) through a pipe. The surface of the upper airbag (11) is fixedly installed on the rear surface of the upper buffer plate (8). The lower airbag (10) and the upper airbag (11) are inflatable structures. A protrusion (12) is provided on one side of the lower airbag (10). The cross-section of the protrusion (12) is trapezoidal. The protrusion (12) is fixedly installed on the protective unit structure surface provided on the front surface of the charging pile body (3). A partition plate (13) is provided above the protrusion (12). The partition plate (13) is connected to the protective unit structure surface provided on the front surface of the charging pile body (3) through a shock-absorbing spring. The partition plate (13) is aligned with the upper airbag (11).

7. A mechanical protection device for a new energy charging pile according to claim 1, characterized in that: The protective shell (2) is provided with ventilation and heat dissipation structures on both sides. The ventilation and heat dissipation structures guide the external air through the heat dissipation holes (14) and the guide plate (15) to assist the heat dissipation process of the charging pile body (3).

8. A mechanical protection device for a new energy charging pile according to claim 7, characterized in that: The ventilation and heat dissipation structure includes a heat dissipation through hole (14), which is disposed through the side surface of the protective shell (2). A guide plate (15) is rotatably installed on the inner wall of the heat dissipation through hole (14). The rotating shaft of the guide plate (15) is fixedly connected to the driven gear (16) through the inner wall of the heat dissipation through hole (14). The driven gear (16) is rotatably disposed in a square through hole on the surface of the protective shell (2). The guide plate (15) is arranged parallel inside the heat dissipation through hole (14). Each guide plate (15) is connected to a driven gear (16). The driven gear (16) meshes with the same drive rack (17). The upper end of the drive rack (17) slides through the upper surface of the protective shell (2).

9. A mechanical protection device for a new energy charging pile according to claim 8, characterized in that: The surface of the drive rack (17) is provided with a drive structure, which automatically controls the drive rack (17) according to the temperature inside the protective shell (2).

10. A mechanical protection device for a new energy charging pile according to claim 9, characterized in that: The driving structure includes a return spring (18), which is disposed on the outer surface of the driving rack (17). One end of the return spring (18) is fixed to the surface of the driving rack (17), and the other end of the return spring (18) is fixed to the inner wall of the protective shell (2). A magnetic block (19) is fixedly installed at the lower end of the driving rack (17). The magnetic block (19) is slidably connected to the inner wall of the protective shell (2). An electromagnet (20) is disposed below the magnetic block (19). The electromagnet (20) is fixedly connected to the inner wall of the protective shell (2). The magnetic poles of the electromagnet (20) and the magnetic block (19) repel each other. A thermistor (21) is connected in series with the coil of the electromagnet (20). The thermistor (21) is an NTC negative temperature coefficient. The electromagnet (20), the thermistor (21), and the power supply are connected in series.

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