New energy charging pile anti-impact structure and charging pile
By designing an impact-resistant buffer structure and lifting avoidance mechanism on new energy charging piles, using non-Newtonian fluid principles and buffering mechanisms, flexible and hard protection under different impact conditions is achieved, and the problem of easy damage of charging piles is solved and reduced. Land occupation and maintenance costs improve safety.
Patent Information
- Application Number
- CN202411484493.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2024-12-24
AI Technical Summary
Existing new energy charging piles are prone to damage during collisions, and the existing anti-collision devices occupy a large area and have poor results, resulting in safety concerns and high maintenance costs.
A new energy charging pile impact-resistant structure including a fixed base, an impact-resistant buffer structure and a lifting avoidance mechanism was designed. The impact-resistant parts and rear-end buffer mechanism made of non-Newtonian fluid principle are used to switch flexibility and force according to the impact speed and force. Hard protection, lift the mounting frame to prevent the charging pile from being impacted.
It effectively reduces the footprint of the charging pile and provides impact-resistant parts in two protective states. It can switch flexible and hard protection under different impact conditions, reduces impact losses, and improves safety and maintenance costs.
Smart Images

Figure CN119176042A_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of new energy vehicle charging piles, and in particular relates to a new energy charging pile anti-impact structure and a charging pile. Background Art
[0002] Compared with traditional fuel vehicles, new energy vehicles have many advantages such as energy saving, environmental protection and cleanliness. At the same time, the economic and environmental costs are very low. New energy vehicles are widely accepted by people. In the era of rapid development of new energy vehicles, the most important charging piles on new energy vehicles have also become an indispensable part. In order to facilitate the charging of new energy vehicles, a large number of charging piles are arranged in high-speed service areas, charging stations and other locations, resulting in a rapid increase in the number of charging piles. However, due to the common characteristics of "high voltage, outdoor placement, and unattended" in public charging facilities, there are certain safety concerns about charging piles.
[0003] At present, the existing new energy charging piles themselves basically have no anti-collision function. When a new energy vehicle collides with a new energy charging pile during parking, the main part of the new energy charging pile is very likely to be damaged. In order to improve the anti-collision performance of the new energy charging pile, anti-collision guardrails are installed around some new energy charging piles. However, the anti-collision guardrails occupy a large area and cannot be used in areas with insufficient space. The anti-collision device directly installed on the new energy charging pile has a poor anti-collision effect. When the impact force is large, the main part of the new energy charging pile is very likely to be damaged, which can easily lead to danger and high maintenance costs. Summary of the invention
[0004] In view of the above-mentioned drawbacks, the present invention provides a new energy charging pile anti-impact structure and a charging pile.
[0005] The invention objective of the present invention is achieved through the following technical solutions: an anti-impact structure of a new energy charging pile, which comprises, from bottom to top, a base fixedly mounted on the ground, an anti-impact buffer structure mounted on the base, and a mounting frame for mounting the charging pile body, the anti-impact buffer structure comprises a protective frame sliding forward and backward on the base, a lifting and avoiding mechanism mounted on the base for supporting the mounting frame and capable of driving the mounting frame to lift upward, and a rear shielding cover fixed on the base, the rear end of the protective frame being embedded in the rear shielding cover, and a protective frame and the rear shielding cover being assembled and arranged around the lifting and avoiding mechanism The base is also provided with a limiter for preventing the protective frame from sliding backward along the base, the structural strength of the limiter is less than the structural strength of the protective frame, a clutch lock is provided between the mounting frame and the protective frame, when the limiter is not broken and can prevent the protective frame from moving backward, the clutch lock remains locked and can prevent the mounting frame from moving upward, when the limiter is broken and the protective frame moves backward, the clutch lock switches to an unlocked state and the lifting avoidance mechanism pushes the mounting frame to lift upward to avoid collision; an impact-resistant part made by the principle of non-Newtonian fluid is installed at the front end of the protective frame;
[0006] When the impact speed is less than the set value A and the impact force cannot damage the limiter, the anti-impact part plays a flexible buffering role, the protective frame plays a supporting role for the anti-impact part, and the limiter plays a supporting role for the protective frame;
[0007] When the impact speed is greater than or equal to the set value A and the impact force cannot damage the limiter, the anti-impact part plays a rigid protective role, the protection frame plays a supporting role for the anti-impact part, and the limiter plays a supporting role for the protection frame;
[0008] When the impact speed is greater than or equal to the set value A and the impact force can break the limit piece, the protective frame will break the limit piece and continue to move backwards, and the rear end buffer mechanism begins to buffer the protective frame. At the same time, the first connecting part is separated from the second connecting part and the lifting avoidance mechanism lifts the mounting frame upward to prevent the charging pile body from being hit.
[0009] Preferably, the impact-resistant member comprises a hollow rubber sac fixed to the front end of the protective frame, the inner cavity of the hollow rubber sac is divided into a plurality of chambers, each of which is filled with a non-Newtonian fluid, and the impact-resistant member protrudes relative to the front side of the mounting frame.
[0010] Preferably, a rear end buffer mechanism is further provided between the rear end of the protection frame and the base, and the rear end buffer mechanism starts to work when the protection frame breaks the limit piece and continues to move backward.
[0011] Preferably, the clutch lock comprises a card slot arranged on the mounting frame and a card hook fixed on the protective frame, and the card hook is laterally embedded in the card slot from the rear end of the card slot.
[0012] Preferably, a sliding groove is provided on the upper end surface of the base, and a sliding block is fixedly provided at the bottom of the protective frame and is slidably arranged in the sliding groove; a slot is provided on the upper end surface of the base, the lower end of the limiting member is inserted into the slot and the front side surface of the limiting member is in contact with the protective frame, and a transversely arranged breaking groove is provided on the rear side of the limiting member, and the breaking groove is located at the notch position of the slot.
[0013] Preferably, the lifting and avoiding mechanism includes a piston inner tube vertically fixed to the upper end of the base and an outer tube sleeve fixed to the lower end of the mounting frame. The outer tube sleeve is provided with a downward step surface. The upper end of the piston inner tube slides into the outer tube sleeve and can fit on the step surface. A limit plate is fixedly provided on the outer side surface of the piston inner tube and the outer side surface of the outer tube sleeve respectively, and a lifting spring is fixedly provided between the two limit plates.
[0014] Preferably, a support ring and an air channel located on the inner side of the support ring are fixedly provided at the rear end of the sliding block, and the rear end buffer mechanism includes a hollow rod with its front end inserted into the air channel, and the rear end of the hollow rod is fixed on the rear wall of the slide groove, and a buffer spring coiled around the outside of the hollow rod is also provided between the rear wall of the slide groove and the sliding block, and the front end of the buffer spring extends into the support ring, and when the rear end of the support ring is in contact with the rear wall of the slide groove, the buffer spring is compressed and completely retracted into the support ring; an air channel is provided in the base to connect the inner cavity of the hollow rod with the inner cavity of the piston inner tube.
[0015] Preferably, a strip groove is provided on the protective frame, the lower end of the lifting and avoiding mechanism is always located in the strip groove and a gap is always left between the lifting and avoiding mechanism and the side wall of the strip groove, a rear shielding cover is also fixedly mounted on the base, and the rear end of the protective frame is embedded in the rear shielding cover.
[0016] The present invention also discloses a charging pile, comprising the above-mentioned charging pile impact buffer structure, and a charging pile body is installed on a mounting frame.
[0017] The present invention also discloses a charging pile impact buffering method, which is used for impact buffering of a charging pile and adopts the above-mentioned charging pile impact buffering structure, and specifically comprises:
[0018] When the impact speed is less than the set value A and the impact force cannot damage the limiter, the anti-impact part plays a flexible buffering role, the protective frame plays a supporting role for the anti-impact part, and the limiter plays a supporting role for the protective frame;
[0019] When the impact speed is greater than or equal to the set value A and the impact force cannot damage the limiter, the anti-impact part plays a rigid protective role, the protection frame plays a supporting role for the anti-impact part, and the limiter plays a supporting role for the protection frame;
[0020] When the impact speed is greater than or equal to the set value A and the impact force can break the limit piece, the protective frame will break the limit piece and continue to move backwards, and the rear end buffer mechanism begins to buffer the protective frame. At the same time, the first connecting part is separated from the second connecting part and the lifting avoidance mechanism lifts the mounting frame upward to prevent the charging pile body from being hit.
[0021] Compared with the prior art, the present invention has the following beneficial effects:
[0022] 1. The impact-resistant buffer structure provided in the present invention is located below the mounting frame, so that the overall area occupied by the present invention is small;
[0023] 2. The impact-resistant member provided in the present invention has two protective states. When the impact speed is low, the non-Newtonian fluid in the impact-resistant member is in a liquid state, and can play a flexible buffering role at this time; when the impact speed is high, the non-Newtonian fluid in the impact-resistant member can play a hard impact-resistant protective role due to its shear thickening characteristics;
[0024] 3. When the impact force is large enough to damage the limiter, the protective frame continues to move backward on the base. At this time, the clutch lock is unlocked. Under the action of the lifting spring, the lifting avoidance mechanism lifts the mounting frame upward to prevent the charging pile body from being hit. At the same time, the rear end buffer mechanism starts to work, and the buffer spring can play a buffering role. When the rear end of the support ring in the rear end buffer mechanism fits with the rear wall of the slide groove, the buffer spring is compressed and completely retracted into the support ring. At this time, the rear end buffer mechanism is compressed to the limit, and the rear wall of the slide groove plays a hard protective role for the sliding block on the protective frame through the rear end buffer mechanism. In the process of the sliding block on the protective frame sliding backward along the sliding groove, the hollow rod will compress the space in the air pore channel, so that high pressure is formed in the air pore channel, and then the inner cavity of the piston inner tube forms high pressure, which further prompts the mounting frame to be lifted upward quickly, avoiding new energy vehicles from damaging the charging pile body on the mounting frame. Since the charging pile body occupies most of the cost of the new energy charging pile, it can greatly reduce the property loss caused by the collision.
[0025] 4. When the impact-resistant part pushes the protective frame to break the limit plate after being hit, it can absorb energy once, and move backward on the base to make the rear buffer mechanism work, which can expand the buffer space of the impact, thereby facilitating the improvement of the buffer effect of the present invention;
[0026] 5. The present invention prevents the charging pile body from being hit by lifting the mounting frame through a lifting avoidance mechanism. Before lifting, the height of the charging pile body is relatively low, which is convenient for taking the charging gun on the charging pile body. If the charging pile body is directly installed at a higher height, although it can directly prevent the charging pile body from being hit, it is not conducive to taking and placing the charging gun. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 This is a three-dimensional diagram of the impact buffer structure of the charging pile;
[0028] Figure 2 It is a three-dimensional diagram of the base;
[0029] Figure 3 Three-dimensional diagram of the protective frame;
[0030] Figure 4 A three-dimensional image of the charging pile impact buffer structure after removing the rear shielding cover;
[0031] Figure 5 It is a schematic diagram of the cross-sectional structure of the lifting and avoiding mechanism;
[0032] Figure 6 This is a schematic diagram of the clutch lock locked state;
[0033] Figure 7 It is a three-dimensional diagram of the limiting member;
[0034] Figure 8 This is a three-dimensional diagram of the charging pile;
[0035] Markings in the figure: 1. impact-resistant buffer structure, 2. mounting frame, 3. rear shielding cover, 4. base, 5. protective frame, 6. slide groove, 7. sliding block, 8. impact-resistant part, 9. hollow rubber bladder, 10. limit part, 11. slot, 12. fracture groove, 13. hook, 14. slot, 15. lifting and avoiding mechanism, 16. piston inner tube, 17. outer tube sleeve, 18. limit plate, 19. lifting spring, 20. strip groove, 21. rear end buffer mechanism, 22. support ring, 23. air duct, 24. hollow rod, 25. buffer spring, 26. air duct, 27. charging pile body. DETAILED DESCRIPTION
[0036] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings:
[0037] like Figure 1 , Figure 2 , Figure 3 As shown, the present invention discloses an anti-impact structure of a new energy charging pile, which includes, from bottom to top, a base 4 fixedly installed on the ground, an anti-impact buffer structure 1 installed on the base 4, and a mounting frame 2 for installing a charging pile body; the anti-impact buffer structure 1 includes a protective frame 5 slidably arranged on the base 4, a lifting and avoiding mechanism 15 installed on the base 4 for supporting the mounting frame 2 and capable of driving the mounting frame 2 to lift upward, and a rear shielding cover 3 fixed on the base 4, the rear end of the protective frame 5 is embedded in the rear shielding cover 3, the protective frame 5 and the rear shielding cover 3 are assembled and arranged around the lifting and avoiding mechanism 15, and the rear shielding cover 3 is used to shield the rear end opening of the protective frame 5 to separate the inner cavity of the protective frame 5 from the outside. A slide groove 6 is provided on the upper end surface of the base 4, and a sliding block 7 is fixedly provided at the bottom of the protective frame 5 and is slidably arranged in the slide groove 6; an anti-impact part 8 made using the non-Newtonian fluid principle is provided at the front end of the protective frame 5, and the anti-impact part 8 includes a hollow rubber sac 9 fixed at the front end of the protective frame 5, and the inner cavity of the hollow rubber sac 9 is divided into a plurality of chambers, each of which is filled with a non-Newtonian fluid, and the anti-impact part protrudes relative to the front side of the mounting frame.
[0038] like Figure 3 As shown, a stopper 10 is provided between the protection frame 5 and the base 4 to prevent the protection frame 5 from sliding backward along the base 4. A slot 11 is provided on the upper end surface of the base 4. The lower end of the stopper 10 is inserted into the slot 11 and the front side of the stopper 10 is in contact with the protection frame 5. The structural strength of the stopper 10 is less than that of the protection frame 5. A transversely arranged fracture groove 12 is provided on the rear side of the stopper 10, and the fracture groove 12 is located at the notch position of the slot 11.
[0039] like Figure 3 , Figure 6As shown, a clutch lock is provided between the mounting frame 2 and the protective frame 5, and the clutch lock includes a slot 14 provided on the mounting frame and a hook 13 fixed on the protective frame 5, and the hook 13 is laterally embedded in the slot 14 from the rear end of the slot 14. When the limiter 10 is not broken and can prevent the protective frame 5 from moving backward, the clutch lock remains locked and can prevent the mounting frame 2 from moving upward. When the limiter 10 is broken and the protective frame 5 moves backward, the clutch lock switches to an unlocked state and the lifting avoidance mechanism 15 pushes the mounting frame 2 to lift upward to avoid collision. The protective frame 5 is provided with a strip groove 20, and the lower end of the lifting avoidance mechanism 15 is always located in the strip groove 20 and there is always a gap between the lifting avoidance mechanism 15 and the side wall of the strip groove 20.
[0040] like Figure 4 , Figure 5 As shown, the lifting and avoiding mechanism 15 includes a piston inner tube 16 vertically fixed to the upper end surface of the base 4, and an outer tube sleeve 17 fixed to the lower end of the mounting frame 2. The outer tube sleeve 17 is provided with a downward step surface. The upper end of the piston inner tube 16 slides into the outer tube sleeve 17 and can fit on the step surface. A limit plate 18 is fixedly provided on the outer side surface of the piston inner tube 16 and the outer side surface of the outer tube sleeve 17, respectively. A lifting spring 19 is fixedly provided between the two limit plates 18.
[0041] like Figure 2 , Figure 4 As shown, a rear buffer mechanism 21 is also provided between the rear end of the protection frame 5 and the base 4. When the sliding block 7 on the protection frame 5 breaks the stopper 10 and continues to move backward, the rear buffer mechanism 21 starts to work. The rear end of the sliding block 7 is fixed with a support ring 22 and an air channel 23 located inside the support ring 22. The rear end of the sliding block 7 includes a hollow rod 24 with a front end inserted into the air channel 23. The cross-sectional area of the front end of the hollow rod 24 is larger than the cross-sectional area of the piston inner tube 16. The rear end of the hollow rod 24 is fixed on the rear wall of the slide groove 6. A buffer spring 25 is also provided between the rear wall of the slide groove 6 and the sliding block 7. The front end of the buffer spring 25 extends into the support ring 22. When the rear end of the support ring 22 fits the rear wall of the slide groove 6, the buffer spring 25 is compressed and completely retracted into the support ring 22. The base 4 is provided with an air channel 26 that connects the inner cavity of the hollow rod 24 with the inner cavity of the piston inner tube 16.
[0042] like Figure 8 As shown, the present invention further discloses a charging pile, including the above-mentioned charging pile impact buffer structure, and a charging pile body 27 is installed on the mounting frame 2.
[0043] The present invention also discloses a charging pile impact buffering method, which is used for impact buffering of a charging pile, and the charging pile impact buffering structure includes:
[0044] When the impact speed is less than the set value A and the impact force cannot damage the limiter 10, the impact-resistant member 8 plays a flexible buffering role, the protective frame 5 plays a supporting role for the impact-resistant member 8, and the limiter 10 plays a supporting role for the protective frame 5;
[0045] When the impact speed is greater than or equal to the set value A and the impact force cannot damage the limiter 10, the impact-resistant member 8 plays a rigid protective role, the protection frame 5 plays a supporting role for the impact-resistant member 8, and the limiter 10 plays a supporting role for the protection frame 5;
[0046] When the impact speed is greater than or equal to the set value A and the impact force is able to break the limit piece 10, the protective frame 5 breaks the limit piece 10 and continues to move backward, and the rear end buffer mechanism 21 begins to buffer the protective frame 5. At the same time, the first connecting part 13 is separated from the second connecting part 14 and the lifting avoidance mechanism 15 lifts the mounting frame 2 upward to prevent the charging pile body from being hit.
[0047] The impact-resistant buffer structure 1 provided in the present invention is located below the mounting frame 2, so that the overall space occupied by the present invention is relatively small.
[0048] The impact-resistant member 8 provided in the present invention comprises a hollow rubber capsule 9 fixed at the front end of the protective frame 5 and a non-Newtonian fluid filled in the inner cavity of the hollow rubber capsule 9. The non-Newtonian fluid refers to a fluid that does not satisfy the Newtonian viscosity experimental law, that is, a fluid whose shear stress and shear strain rate are not in a linear relationship, which is opposite to the Newtonian fluid. When the impact speed of the non-Newtonian fluid is relatively small, in the present invention, the size of the set value A depends on the specific material selected for the non-Newtonian fluid. When different non-Newtonian fluids are selected, the size of the set value A is different. For example, the set value A is 6km / h. When the impact speed is less than 6km / h, the strength of the non-Newtonian fluid is relatively low. At this time, the impact-resistant member 8 can play a flexible buffering role for the impact received, and can better protect the charging pile and the new energy vehicle. When the impact speed of the non-Newtonian fluid is relatively large, for example, greater than 6km / h, the strength of the non-Newtonian fluid is high, and it can play a hard protective role.
[0049] When the impact force on the impact-resistant part 8 is large and can damage the limit part 10, the sliding block 7 on the protective frame 5 will break the limit part 10 and continue to move backward in the slide groove 6 on the base 4. At this time, the hook 13 is separated from the slot 14 at the rear end. Under the action of the lifting spring 19, the lifting avoidance mechanism 15 lifts the mounting frame 2 upward to prevent the charging pile body from being hit. At the same time, the rear end buffer mechanism 21 starts to work, and the buffer spring 25 can play a buffering role. When the rear end of the support ring 22 in the rear end buffer mechanism 21 is in contact with the rear wall of the slide groove 6, the buffer spring 2 5 is compressed and completely retracted into the supporting ring 22. At this time, the rear end buffer mechanism 21 is compressed to the limit, and the rear wall of the slide groove 6 plays a hard protective role for the sliding block 7 on the protective frame 5 through the rear end buffer mechanism 21. In the process of the sliding block 7 on the protective frame 5 sliding backward along the sliding groove, the hollow rod 24 will compress the space in the air channel 23, so that high pressure is formed in the air channel 23, and then the inner cavity of the piston inner tube 16 is formed. High pressure is further driven to lift the mounting frame 2 upward to prevent the mounting frame 2 and the charging pile body 27 from being directly hit, thereby playing an excellent protective role.
[0050] It should be understood that in the claims and description of the present invention, all "including..." should be understood as an open-ended meaning, that is, its meaning is equivalent to "at least contains...", and should not be understood as a closed meaning, that is, its meaning should not be understood as "only includes...".
[0051] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.
Claims
1. A new energy charging pile impact-resistant structure, characterized in that: The invention comprises, from bottom to top, a base fixedly mounted on the ground, an anti-impact buffer structure mounted on the base, and a mounting frame for mounting a charging pile body. The anti-impact buffer structure comprises a protective frame sliding forward and backward on the base, a lifting and avoiding mechanism mounted on the base for supporting the mounting frame and capable of driving the mounting frame to lift upward, and a rear shielding cover fixed on the base. The rear end of the protective frame is embedded in the rear shielding cover. The protective frame and the rear shielding cover are assembled and arranged around the lifting and avoiding mechanism. A limiting member for preventing the protective frame from sliding backward along the base is also provided on the base. The structural strength of the limiting member is less than that of the protective frame. A clutch lock is provided between the mounting frame and the protective frame. When the limiting member is not broken and can prevent the protective frame from moving backward, the clutch lock remains in a locked state and can prevent the mounting frame from moving upward. When the limiting member is broken and the protective frame moves backward, the clutch lock switches to an unlocked state and the lifting and avoiding mechanism pushes the mounting frame to lift upward to avoid collision. An anti-impact member manufactured using the principle of non-Newtonian fluid is installed at the front end of the protective frame. When the impact speed is less than the set value A and the impact force cannot damage the limiter, the anti-impact part plays a flexible buffering role, the protective frame plays a supporting role for the anti-impact part, and the limiter plays a supporting role for the protective frame; When the impact speed is greater than or equal to the set value A and the impact force cannot damage the limiter, the anti-impact part plays a rigid protective role, the protection frame plays a supporting role for the anti-impact part, and the limiter plays a supporting role for the protection frame; When the impact speed is greater than or equal to the set value A and the impact force can break the limit piece, the protective frame will break the limit piece and continue to move backwards, and the rear end buffer mechanism begins to buffer the protective frame. At the same time, the first connecting part is separated from the second connecting part and the lifting avoidance mechanism lifts the mounting frame upward to prevent the charging pile body from being hit.
2. The impact-resistant structure of a new energy charging pile according to claim 1 is characterized in that: The impact-resistant member comprises a hollow rubber sac fixed at the front end of the protection frame. The inner cavity of the hollow rubber sac is divided into a plurality of chambers, each of which is filled with a non-Newtonian fluid. The impact-resistant member protrudes relative to the front side of the mounting frame.
3. The impact-resistant structure of a new energy charging pile according to claim 1 is characterized in that: A rear end buffer mechanism is also provided between the rear end of the protection frame and the base. When the protection frame breaks the limit piece and continues to move backward, the rear end buffer mechanism starts to work.
4. The impact-resistant structure of a new energy charging pile according to claim 1 is characterized in that: The clutch lock comprises a card slot arranged on the mounting frame and a card hook fixed on the protection frame, and the card hook is transversely embedded in the card slot from the rear end of the card slot.
5. The impact-resistant structure of a new energy charging pile according to claim 3 is characterized in that: A sliding groove is provided on the upper end surface of the base, and a sliding block is fixedly provided at the bottom of the protective frame and is slidably arranged in the sliding groove; a slot is provided on the upper end surface of the base, the lower end of the limiting member is inserted into the slot and the front side of the limiting member is in contact with the protective frame, and a transversely arranged breaking groove is provided on the rear side of the limiting member, and the breaking groove is located at the notch position of the slot.
6. The impact-resistant structure of a new energy charging pile according to claim 5, characterized in that: The lifting and avoiding mechanism includes a piston inner tube vertically fixed to the upper end of the base and an outer tube sleeve fixed to the lower end of the mounting frame. The outer tube sleeve is provided with a downward step surface. The upper end of the piston inner tube slides into the outer tube sleeve and can fit on the step surface. A limit plate is fixedly provided on the outer side surface of the piston inner tube and the outer side surface of the outer tube sleeve respectively, and a lifting spring is fixedly provided between the two limit plates.
7. The impact-resistant structure of a new energy charging pile according to claim 6, characterized in that: A support ring and an air channel located on the inner side of the support ring are fixedly provided at the rear end of the sliding block. The rear end buffer mechanism includes a hollow rod with its front end inserted into the air channel. The rear end of the hollow rod is fixed to the rear wall of the slide groove. A buffer spring coiled around the outside of the hollow rod is also provided between the rear wall of the slide groove and the sliding block. The front end of the buffer spring extends into the support ring. When the rear end of the support ring fits against the rear wall of the slide groove, the buffer spring is compressed and completely retracted into the support ring. An air channel is provided in the base to connect the inner cavity of the hollow rod with the inner cavity of the piston inner tube.
8. The impact-resistant structure of a new energy charging pile according to claim 6, characterized in that: The protection frame is provided with a strip groove, the lower end of the lifting and avoiding mechanism is always located in the strip groove, and a gap is always left between the lifting and avoiding mechanism and the side wall of the strip groove.
9. A charging pile, characterized in that: The invention comprises the impact-resistant structure of a new energy charging pile according to any one of claims 1 to 8, wherein a charging pile body is installed on a mounting frame.
