Anti-collision new energy automobile charging pile

Abstract

The invention relates to the related technical field of automobile charging piles, discloses an anti-collision new energy automobile charging pile, and aims to solve the problem that the charging pile is easy to collide due to relative fixation. A charging pile body can do directional reciprocating motion under the guidance of a guide rail, and a damping wheel which is ejected outwards through a damping push spring is arranged in front of the charging pile body; when the new energy automobile collides with the charging pile body due to misoperation, the damping wheels are extruded firstly, a starting switch is forced to enable a motor to work and achieve rotation of the damping wheels, on one hand, damping buffering can be achieved through compression of a damping push spring, and on the other hand, damping buffering can be achieved through rotation of the damping wheels on the outer side of the new energy automobile. Power is provided for the charging pile body to move on the guide rail, the charging pile body moves along the guide rail, the moving paths of the charging pile body and the new energy automobile are relatively staggered, direct collision between the charging pile body and the new energy automobile is avoided, and finally the effect of automatically adjusting the position after the charging pile body is collided is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field related to automobile charging piles, and in particular to an anti-collision type new energy automobile charging pile. Background Art

[0002] New energy vehicle charging piles, also known as motor vehicle charging stations or electric vehicle power supply stations, are power supply devices designed specifically for electric vehicles to ensure that electric vehicles can store sufficient electrical energy to maintain their normal driving. Most of these charging piles are firmly fixed in a specific area by expansion bolts to ensure their stability, but this design also brings a problem: when a new energy vehicle accidentally collides with it, the charging pile lacks sufficient shock absorption and buffering effect.

[0003] At present, the common solution in the industry is to add spring damping buffer devices to the periphery of the charging pile. When the charging pile is hit by external force, these springs can play a damping and buffering role, effectively reducing the direct impact on the charging pile, thereby reducing the risk of damage. However, although this method can alleviate the impact to a certain extent, it does not fundamentally solve the problem.

[0004] In actual applications, we found that new energy vehicles often collide with charging piles because the driver fails to accurately judge the distance between the vehicle and the charging pile when reversing / moving forward. Once the driver makes a mistake, the car may directly hit the charging pile. Although the spring damping buffer device can absorb the impact and reduce vibration to a certain extent, the relative position between the car and the charging pile has not changed, and the continuously moving car will eventually collide with the charging pile.

[0005] Therefore, the protection performance of the current charging piles still needs to be improved, and the market urgently needs a new type of anti-collision charging pile for new energy vehicles. Summary of the invention

[0006] The present invention proposes an anti-collision new energy vehicle charging pile, which has the advantage of being able to automatically adjust its position after being impacted, and is used to solve the problem in the above background technology that the charging pile is prone to collision due to being relatively fixed.

[0007] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an anti-collision new energy vehicle charging pile, comprising: a charging pile body, the bottom of which is movably mounted on a guide rail by a ball slide to realize directional movement of the charging pile body; an installation bracket, which is fastened to the charging pile body, and a collision prevention frame is movably mounted on the surface of the charging pile body, which is pushed outward by a shock-absorbing push spring, and the shock-absorbing wheel installed on the collision prevention frame is used to contact the new energy vehicle; a motor, which is controlled by a starting switch fixed at the end of the shock-absorbing cylinder body, and after the collision prevention frame releases the suppression of the starting switch, the motor drives the shock-absorbing wheel to rotate, and utilizes the friction between the shock-absorbing wheel and the new energy vehicle to make the charging pile body move along the guide rail, so that the charging pile body and the new energy vehicle are staggered with each other.

[0008] Furthermore, fan blades are fixedly installed on the inner side of the shock-absorbing wheel. When the shock-absorbing wheel rotates, the airflow generated by the fan blades blows toward the cylindrical whistle on the top of the shock-absorbing wheel, causing the cylindrical whistle to make a sound.

[0009] Furthermore, it also includes: a hydraulic cylinder body, which is fixed on the surface of the mounting bracket and movably installed between the hydraulic cylinder body and the anti-collision frame; two pressure measuring cylinder bodies, which are respectively connected to the two pressure measuring cylinder bodies by hydraulic pipes, and an intermediate piston rod is movably installed between the two pressure measuring cylinder bodies; a roller, which is fixed on the outside of the intermediate piston rod, moves with the intermediate piston rod and presses the stop switch fixed on the end of the pressure measuring cylinder body.

[0010] Furthermore, a main piston rod is movably installed on the side of the first pressure measuring cylinder body, and a spring is connected between the main piston rod and the pressure measuring cylinder body; a secondary piston rod is movably installed on the outer side of the second pressure measuring cylinder body; the main piston rod and the secondary piston rod are connected by a synchronous pull rod; a damping tube is fixed to the inner side of the charging pile body and located at the top of the secondary piston rod, and a damping hole is opened on the outside; a cylinder is provided on the top of the secondary piston rod and is inserted into the damping tube.

[0011] Furthermore, a one-way exhaust valve is fixedly installed on the top of the outer side of the damping tube to realize one-way flow of the airflow in the inner cavity of the damping tube to the outside.

[0012] Furthermore, it also includes: there are two rollers; a return pressure plate, which is placed between the two rollers, and the bottom is movably installed to the inner bottom of the charging pile body through a limiting rod with an elliptical cross-section, and the top is fixedly installed with a guide rod located below the synchronization pull rod.

[0013] Furthermore, the return pressure plate is in the shape of an isosceles triangle.

[0014] Furthermore, the reset sleeve is sleeved on the outside of the guide rod, and a reset top spring is connected between the bottom and the return pressure plate; the lock wheel frame is fixed on the bottom of the reset sleeve; and a lock wheel groove is provided at the bottom of the return pressure plate.

[0015] Furthermore, there are two wheel lock frames, a return groove is provided in the middle of the outer side of the wheel lock frame, and an inclined surface aligned with the side of the return pressure plate is provided at the bottom.

[0016] Furthermore, a tooth row is fixedly installed on the inner side of the guide rail.

[0017] The present invention has the following beneficial effects:

[0018] The present invention provides an anti-collision new energy vehicle charging pile, which realizes directional and smooth reciprocating motion through the charging pile body under the guidance of the guide rail. In addition, the charging pile is equipped with a shock-absorbing wheel device protruding outward driven by a shock-absorbing push spring at the front end. This design ensures that when the new energy vehicle accidentally approaches and may collide with the charging pile due to driver's misoperation, it will first come into contact with the shock-absorbing wheel.

[0019] At the moment of contact, the pressure on the shock-absorbing wheel triggers the start switch, activating the built-in motor and causing the shock-absorbing wheel to start rotating. In this process, the compression of the shock-absorbing spring not only provides a preliminary damping effect, effectively absorbing and dispersing the impact force generated by the collision, but also, as the shock-absorbing wheel rotates, the friction between its outer edge and the body of the new energy vehicle becomes the power source for pushing the charging pile body to slide along the guide rail.

[0020] In the dynamic process of a new energy vehicle hitting a charging pile, the charging pile can intelligently and instantly move along the guide rail, so that the moving paths of the charging pile and the new energy vehicle are relatively staggered, effectively avoiding direct and hard collisions between the two. This mechanism not only greatly reduces the risk of damage to the charging pile, but also ensures the safety of new energy vehicles and passengers.

[0021] In summary, the anti-collision new energy vehicle charging pile has realized the function of automatically adjusting its position when encountering a collision, which significantly improves the protection performance and safety of the charging facilities. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0023] The present invention may be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:

[0024] Figure 1 It is a schematic diagram of the overall external three-dimensional structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the overall back three-dimensional structure of the present invention;

[0026] Figure 3 It is a schematic diagram of the three-dimensional structure of the bottom of the charging pile body in the present invention;

[0027] Figure 4 It is a schematic top view of the present invention as a whole;

[0028] Figure 5 It is a schematic diagram of a partial planar cross-sectional structure of the back of the charging pile body in the present invention;

[0029] Figure 6 for Figure 5 The enlarged structural diagram at E in the middle;

[0030] Figure 7 for Figure 5 The enlarged structural diagram at F in the middle;

[0031] Figure 8 for Figure 5 The enlarged structural diagram at G in the middle;

[0032] Fig. 9 It is a schematic diagram of the positions of various components after the synchronous pull rod releases the pressing of the reset sleeve in the present invention;

[0033] Fig.10 It is a schematic diagram of the three-dimensional and cross-sectional structure of the guide rail in the present invention;

[0034] Fig.11 It is a schematic diagram of the cross-sectional structure viewed from the center line of the hydraulic pipe in the present invention;

[0035] Fig.12 It is a schematic diagram of the installation of the shock-absorbing wheel and its three-dimensional structure in the present invention;

[0036] Fig.13 It is a schematic diagram of the three-dimensional structure of the fan blade in the present invention;

[0037] Fig.14 It is a schematic diagram of the positions between the pressure measuring cylinders and the assembly of their components in the present invention;

[0038] Fig.15 It is a schematic diagram of the three-dimensional structure of the return pressing plate in the present invention;

[0039] Fig.16 It is a schematic diagram of the three-dimensional structure of the wheel lock frame in the present invention.

[0040] In the figure: 1. Charging pile body; 2. Mounting bracket; 3. Shock-absorbing cylinder body; 301. Shock-absorbing push spring; 4. Hydraulic cylinder body; 5. Anti-collision frame; 6. Shock-absorbing wheel; 601. Cylindrical whistle; 602. Fan blade; 7. Motor; 8. Guide rail; 9. Pressure measuring cylinder body; 10. Hydraulic pipe; 11. Intermediate piston rod; 110. Roller; 12. Limit rod; 13. Main piston rod; 130. Spring; 14. Auxiliary piston rod; 15. Synchronous pull rod; 16. Reset sleeve; 161. Reset top spring; 17. Lock wheel frame; 170. Return groove; 18. Return pressure plate; 180. Lock wheel groove; 19. Guide rod; 20. Damping tube; 201. One-way exhaust valve; 202. Damping hole; 21. Gear row; 22. Stop switch; 23. Start switch. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] The new energy vehicle charging pile mentioned in this application is intended to solve the problem of new energy vehicles directly colliding with the charging pile after the driver misoperates. As an example 1, please refer to Figure 1-Figure 3 It can be seen that, unlike conventional charging piles, the four corners of the bottom of the charging pile body 1 mentioned in this application are all equipped with ball bearing slides fastened with bolts. Correspondingly, the ball bearing slides are movably installed on the guide rails 8. Generally, there are two guide rails 8, so that the charging pile body 1 can use the ball bearing slides to perform directional reciprocating movement on the guide rails 8. In addition, the guide rails 8 can support the installation of multiple charging pile bodies 1, ensuring that multiple charging pile bodies 1 can move along the axial direction of the guide rails 8. The specific number can be adaptively adjusted according to actual usage requirements. As for the power supply of the charging pile body 1, from Figure 3 It can be seen that the chain plate is used to realize the transmission of electric energy to the charging pile body 1 , so as to ensure that when the charging pile body 1 moves along the guide rail 8 , the external power source can still be transmitted to the charging pile body 1 .

[0043] like Figure 1 As shown, the parking space for new energy vehicles is arranged in front of the charging pile body 1. Since the charging pile body 1 provided in the present application can be moved along the guide rail 8, when the charging port is far away from the vehicle, the user can push the charging pile body 1 to move along the guide rail 8 to make it closer to the charging port of the new energy vehicle. This method can also avoid the problem of the charger line being pulled out too long. On the surface of the charging pile body 1 facing the parking space, there is a mounting bracket 2 fastened by bolts. The shock-absorbing cylinder body 3 is fastened to the surface of the mounting bracket 2 by welding / threaded connection. An anti-collision frame 5 is movably installed inside the mounting bracket 2. The anti-collision frame 5 can reciprocate along the axial direction of the shock-absorbing cylinder body 3. On this basis, as Fig.12It can be seen that a shock-absorbing push spring 301 located in the inner cavity of the shock-absorbing cylinder 3 is movably installed between the shock-absorbing cylinder 3 and the anti-collision frame 5. Under the push of the elastic force of the shock-absorbing push spring 301, the anti-collision frame 5 always has a tendency to move away from the surface of the charging pile body 1. A shock-absorbing wheel 6 is movably installed on the anti-collision frame 5. When the new energy vehicle collides in the direction of the charging pile body 1, the shock-absorbing wheel 6 will be hit first, and the impact force will be transferred to the shock-absorbing push spring 301 through the anti-collision frame 5, and the shock absorption is realized according to the shock-absorbing push spring 301. A rubber ball is arranged on the outside of the shock-absorbing wheel 6. On the one hand, it can reduce the impact strength between the shock-absorbing wheel 6 and the new energy vehicle. On the other hand, when the shock-absorbing wheel 6 rotates later, the rubber ball can rotate outside the new energy vehicle to increase the friction between the two.

[0044] The number of shock-absorbing wheels 6 is preferably two, and the two shock-absorbing wheels 6 are symmetrically arranged on the same surface of the charging pile body 1 to ensure that when the new energy vehicle collides with the charging pile body 1, it will always contact the shock-absorbing wheel 6 first. In addition, a motor 7 coaxially arranged with the shock-absorbing wheel 6 is fixedly installed at the bottom of each anti-collision frame 5, and the output shaft of the motor 7 is fixedly connected to the shock-absorbing wheel 6. When the motor 7 rotates, it can drive the shock-absorbing wheel 6 to rotate synchronously. In order to prevent the continuous rotation of the motor 7 from wasting electricity, Figure 1 and Fig.12 It can be seen that a start switch 23 is fixedly installed at the end of the shock-absorbing cylinder 3. Under normal conditions, the anti-collision frame 5 moves in a direction away from the mounting bracket 2 under the elastic force of the shock-absorbing push spring 301, causing the anti-collision frame 5 to be pressed on the start switch 23. At this time, the motor 7 correspondingly installed on the anti-collision frame 5 is in a non-working state. When the new energy vehicle collides in the direction of the charging pile body 1, the shock-absorbing wheel 6 first contacts the new energy vehicle, which causes the shock-absorbing wheel 6 to push the anti-collision frame 5 to compress the shock-absorbing push spring 301, so that the anti-collision frame 5 releases the suppression of the start switch 23. Afterwards, the released start switch 23 will cause the motor 7 to start working and drive the shock-absorbing wheel 6 to rotate.

[0045] In actual work, Figure 4 As shown, when the new energy vehicle is parked in the left parking space, the driver's misoperation causes the new energy vehicle to continue to collide with the charging pile body 1. The new energy vehicle will first collide with the shock-absorbing wheel 6 on the left, so that the shock-absorbing wheel 6 on the left pushes the anti-collision frame 5 to compress the shock-absorbing push spring 301. Correspondingly, the shock-absorbing wheel 6 on the left begins to rotate clockwise. Since the shock-absorbing wheel 6 reaches the outer side of the new energy vehicle, as the shock-absorbing wheel 6 rotates clockwise, the charging pile body 1 is forced to move to the right along the guide rail 8 as a whole, until the charging pile body 1 and the new energy vehicle in the left parking space are staggered, so as to avoid the new energy vehicle that continues to retreat directly colliding with the charging pile body 1. Similarly, if the new energy vehicle is parked in the right parking space and collides with the charging pile body 1, the charging pile body 1 will move to the left.

[0046] Embodiment 2 is supplemented on the basis of embodiment 1. As described in embodiment 1, when the shock-absorbing wheel 6 contacts the outer side of the new energy vehicle, the motor 7 drives the shock-absorbing wheel 6 to rotate. On the one hand, the rotating shock-absorbing wheel 6 provides power for the movement of the charging pile body 1. On the other hand, the rubber ball on the outer side of the shock-absorbing wheel 6 continuously hits the outer side of the new energy vehicle, thereby alerting the operator in the vehicle that the new energy vehicle has collided with the shock-absorbing wheel 6 at this time.

[0047] Moreover, from Fig.11 and Fig.13 It can be seen that a plurality of fan blades 602 arranged in an annular shape and at equal angles are fixedly installed on the inner side of the shock-absorbing wheel 6. When the shock-absorbing wheel 6 drives the fan blades 602 to rotate, the airflow at the bottom of the shock-absorbing wheel 6 will pass through the inner cavity of the shock-absorbing wheel 6 and be transported upward. Correspondingly, a plurality of cylindrical whistles 601 arranged in an annular shape and at equal angles are fixedly installed on the top of the shock-absorbing wheel 6. When the airflow in the inner cavity of the shock-absorbing wheel 6 continuously flows upward, the airflow will be discharged from the cylindrical whistle 601 and emit a continuous sound. The sound can warn outsiders to stay away from the vehicle. At the same time, the sound emitted can prompt surrounding staff to check it, thereby providing rescue or command work for the driver.

[0048] Embodiment 3 is a further improvement on Embodiment 2. Figure 1 and Fig.12 It can be seen that the surface of the mounting bracket 2 is fixedly mounted with a hydraulic cylinder 4 located below the shock absorbing cylinder 3, and the hydraulic cylinder 4 and the anti-collision frame 5 are movably mounted. More specifically, the anti-collision frame 5 can move inside the hydraulic cylinder 4 using a piston, thereby changing the pressure of the hydraulic oil in the inner cavity of the hydraulic cylinder 4. Figure 5 , Fig.11 and Fig.14 As shown, there is a pressure measuring cylinder 9 on the inner side of the back of the charging pile body 1, which is fastened by bolts. There are two pressure measuring cylinders 9, and the two pressure measuring cylinders 9 are on the same center line. The two pressure measuring cylinders 9 are connected to their corresponding hydraulic cylinders 4 through hydraulic pipes 10, so that the hydraulic oil in the pressure measuring cylinders 9 and the hydraulic cylinders 4 can flow to each other. Figure 5 and Fig.14 As shown, an intermediate piston rod 11 is movably installed between the two pressure measuring cylinders 9, and the intermediate piston rod 11 can only reciprocate left and right along the central axis of the two pressure measuring cylinders 9. In addition, pistons are arranged at both ends of the intermediate piston rod 11. When there is a pressure difference between the two pressure measuring cylinders 9, the intermediate piston rod 11 will tend to move left / right. Fig.11As shown, a roller 110 is fixedly mounted on the outer side of the intermediate piston rod 11, and correspondingly, a stop switch 22 located on one side of the roller 110 is fixedly mounted on the end of the pressure measuring cylinder 9. When the roller 110 contacts the stop switch 22, the corresponding motor 7 stops working. Fig.11 For example, if the shock-absorbing wheel 6 on the left is pushed by the new energy vehicle, and the anti-collision frame 5 is used to apply pressure to the hydraulic cylinder 4 on the left, at this time, the liquid pressure in the left pressure measuring cylinder 9 is relatively greater than that on the right, and the middle piston rod 11 moves to the right, and makes the roller 110 hit the stop switch 22 on the right pressure measuring cylinder 9. At this time, the stop switch 22 on the right pressure measuring cylinder 9 forces the motor 7 on the right anti-collision frame 5 to stop working, ensuring that when the new energy vehicle collides with the shock-absorbing wheel 6, only one motor 7 is working, so that the charging pile body 1 can move in a directional manner along the guide rail 8; similarly, if the shock-absorbing wheel 6 on the right is pressurized, causing the hydraulic oil pressure in the right pressure measuring cylinder 9 to increase, the middle piston rod 11 will move to the left, and the stop switch 22 on the left will be squeezed, and the motor 7 on the left will stop working.

[0049] In order to prevent the hydraulic oil in the pressure measuring cylinder 9 from being unable to be squeezed out after the two hydraulic cylinder bodies 4 are pressurized at the same time, causing the hydraulic oil in the hydraulic cylinder body 4 to limit the anti-collision frame 5 from being retracted toward the charging pile body 1, resulting in the damping and shock absorbing effect of the shock absorbing wheel 6 being weakened or ineffective, in this embodiment three, combined with Figure 5 , Figure 7 and Fig.14 It can be clearly seen that a main piston rod 13 is movably installed on the side of the left pressure-measuring cylinder 9, and a spring 130 is connected between the main piston rod 13 and the left pressure-measuring cylinder 9. Under the push of the spring 130, the main piston rod 13 is forced to always move toward the pressure-measuring cylinder 9. A secondary piston rod 14 is movably installed on the outer side of the right pressure-measuring cylinder 9. When the internal pressure of the right pressure-measuring cylinder 9 increases, the secondary piston rod 14 can be pushed to move upward. The main piston rod 13 and the secondary piston rod 14 are connected by a synchronous pull rod 15. In detail, the synchronous pull rod 15 is fixedly connected to the top of the main piston rod 13. The synchronous pull rod 15 is sleeved on the outer side of the secondary piston rod 14, so that the synchronous pull rod 15 can move up and down within a certain range on the outer side of the secondary piston rod 14. Figure 5 and Figure 7 As shown, a damping tube 20 located above the auxiliary piston rod 14 is fixedly installed on the inner side of the charging pile body 1 by bolts, and the damping tube 20 and the auxiliary piston rod 14 are on the same central axis. The damping tube 20 is a cylindrical tube with a downward opening, and correspondingly, a cylinder inserted into the damping tube 20 is arranged on the top of the auxiliary piston rod 14. When the auxiliary piston rod 14 moves upward and the cylinder enters the damping tube 20, the airflow inside the damping tube 20 can only flow out slowly from the damping hole 202, thereby relatively increasing the resistance of the auxiliary piston rod 14 to move upward.

[0050] In actual application, if the new energy vehicle collides with two shock-absorbing wheels 6 at the same time due to driver's misoperation, the two shock-absorbing wheels 6 push their corresponding anti-collision frames 5 to squeeze the hydraulic oil in the hydraulic cylinder 4. In this process, if the forces applied on both sides are unbalanced, Fig.11 For example, if the new energy vehicle pushes the right shock absorber wheel 6 with greater strength, the hydraulic oil pressure in the right pressure measuring cylinder 9 will be greater than the medium pressure in the inner cavity of the left pressure measuring cylinder 9, forcing the middle piston rod 11 to push to the left until the roller 110 presses the stop switch 22 on the left, forcing the left motor 7 to stop working. Since the left and right motors 7 have different rotation directions, when the two shock absorber wheels 6 hit the new energy vehicle at the same time, one of the motors 7 will stop working. After the shock absorber wheel 6 contacts the new energy vehicle, it can cause the charging pile body 1 to move unidirectionally along the guide rail 8, and the charging pile body 1 and the new energy vehicle are staggered to avoid collision between the two; when the left shock absorber wheel 6 pushes with greater strength, the same applies to the above.

[0051] If the new energy vehicle pushes the shock-absorbing wheel 6 so that the two move the same distance, this will result in a relatively constant amount of hydraulic oil input from the two hydraulic cylinder bodies 4 into the inner cavity of the pressure measuring cylinder body 9. Fig.14 As shown, when the hydraulic oil inside the two pressure measuring cylinders 9 is relatively balanced, the main piston rod 13 and the auxiliary piston rod 14 will move upward at a constant speed. When the cylinder at the top of the auxiliary piston rod 14 enters the damping tube 20, the airflow inside the damping tube 20 is slowly discharged from the damping hole 202, which increases the upward resistance of the auxiliary piston rod 14 on the right side. When the main piston rod 13 on the left side moves upward and drives the synchronous pull rod 15 to move upward, the synchronous pull rod 15 will move upward along the outer side of the auxiliary piston rod 14. Afterwards, when the hydraulic cylinder 4 again delivers hydraulic oil to the pressure measuring cylinder 9 through the hydraulic pipe 10, due to the relatively large resistance at the top of the auxiliary piston rod 14, the hydraulic oil pressure in the inner cavity of the right pressure measuring cylinder 9 will be relatively higher than the hydraulic oil pressure in the inner cavity of the left pressure measuring cylinder 9, forcing the intermediate piston rod 11 to push the roller 110 to move to the left until the roller 110 contacts the stop switch 22 on the end of the left pressure measuring cylinder 9, forcing the motor 7 corresponding to the left stop switch 22 to stop working.

[0052] On this basis, refer to Figure 5 and Figure 7It can be known that a one-way exhaust valve 201 is fixedly installed on the top of the outer side of the damping tube 20 to realize the one-way flow of the airflow in the inner cavity of the damping tube 20 to the outside. When the auxiliary piston rod 14 squeezes the airflow inside the damping tube 20, the one-way exhaust valve 201 will relatively accelerate the discharge of the airflow in the inner cavity of the damping tube 20. However, it should be noted that when the hydraulic oil is constantly input into the pressure measuring cylinder 9, the resistance above the auxiliary piston rod 14 still needs to be greater than the main piston rod 13, so as to maintain the above-mentioned technical effect. However, the difference is that due to the connection of the one-way exhaust valve 201, the upward height of the auxiliary piston rod 14 will be relatively increased. When the charging pile body 1 completely avoids the new energy vehicle, the main piston rod 13 and the auxiliary piston rod 14 are forced to move downward synchronously under the push of the spring 130, causing the hydraulic oil in the inner cavity of the pressure measuring cylinder 9 to flow back to the hydraulic cylinder 4 through the hydraulic pipe 10, and the hydraulic cylinder 4 pushes the anti-collision frame 5 outward to achieve reset. When the secondary piston rod 14 is separated from the damping tube 20, the pressure in the inner cavity of the damping tube 20 is relatively reduced, and the external airflow can only be slowly replenished from the damping hole 202, which will relatively prolong the time for the secondary piston rod 14 to reset. As described in the second embodiment, when the anti-collision frame 5 squeezes the hydraulic cylinder body 4, the motor 7 drives the shock-absorbing wheel 6 to rotate and makes the cylindrical whistle 601 sound. Due to the slow reset of the secondary piston rod 14, the time for the anti-collision frame 5 to reset is relatively prolonged, and the sound of the cylindrical whistle 601 is also prolonged, so as to warn outsiders to check here.

[0053] Moreover, Figure 5 , Figure 6 and Fig.14 It can be seen that there are two rollers 110, and both rollers 110 are mounted on the outer side of the middle piston rod 11, and a return pressure plate 18 is placed between the two rollers 110. Fig.15 As shown, the shape of the return pressure plate 18 is approximately an isosceles triangle, and the limit rod 12 is fixedly installed at the bottom of the return pressure plate 18. Figure 5 As shown, the limit rod 12 is movably installed to the inner bottom of the charging pile body 1. Generally speaking, the cross-sectional shape of the limit rod 12 is preferably elliptical. This design can ensure that the return pressure plate 18 can only reciprocate up and down under the movement restriction of the limit rod 12. A guide rod 19 located below the synchronous pull rod 15 is fixedly installed on the top of the return pressure plate 18. When the synchronous pull rod 15 moves downward, the synchronous pull rod 15 will press the guide rod 19 downward, thereby pushing the return pressure plate 18 to move downward synchronously with the guide rod 19. Figure 6For example, when the new energy vehicle collides with the shock-absorbing wheel 6, as mentioned above, the middle piston rod 11 will move left / right. At this time, the roller 110 will push the inclined surface of the return pressure plate 18, causing it to drive the guide rod 19 to move upward synchronously. When the new energy vehicle is away from the charging pile body 1, the synchronous pull rod 15 will move downward synchronously under the push of the elastic force of the spring 130, and after recovering to near the bottom, it will suppress the guide rod 19 to move downward synchronously, and finally make the return pressure plate 18 rest on the two rollers 110, ensuring that the middle piston rod 11 is restored to the middle equilibrium position after the return pressure plate 18 falls. On this basis, combined with Figure 5 , Figure 6 , Figure 14-16 It can be seen that a reset sleeve 16 is sleeved on the outer side of the guide rod 19, and a reset top spring 161 is connected between the reset sleeve 16 and the return pressure plate 18. Under the push of the reset top spring 161, the reset sleeve 16 is forced to always have a tendency to move upward until the end of the reset sleeve 16 is higher than the end of the guide rod 19. In addition, the bottom of the reset sleeve 16 is fastened with a wheel lock frame 17 by bolts, and the number of the wheel lock frames 17 is two, such as Fig.15 and Fig.16 As shown, a return groove 170 is provided in the middle of the outer side of the wheel lock frame 17, and an inclined surface aligned with the side of the return pressure plate 18 is provided at the bottom. Under normal circumstances, the wheel lock frame 17 is forced to move upward under the elastic force of the return top spring 161 until the inclined surface on the wheel lock frame 17 is aligned with the outer side of the return pressure plate 18, that is, Fig. 9 A wheel locking groove 180 is provided at the bottom of the return pressure plate 18 , and when the roller 110 moves along the outer side of the return pressure plate 18 and the bottom inclined surface of the wheel locking frame 17 , the roller 110 will eventually move into the wheel locking groove 180 , thereby locking the roller 110 .

[0054] In actual application, under normal conditions, the spring 130, under the elastic force, drives the main piston rod 13 to drive the auxiliary piston rod 14 downward to the bottom. At this time, the synchronous pull rod 15 is pressed on the top of the reset sleeve 16 and the guide rod 19. The compressed reset sleeve 16 squeezes the reset top spring 161 below and simultaneously pushes the lock wheel frame 17 to move downward relatively, so that the bottom inclined surface of the lock wheel frame 17 is away from the outer side of the return pressure plate 18, and the return groove 170 is aligned with the lock wheel groove 180, that is, Figure 6 Position shown.

[0055] When the new energy vehicle collides toward the charging pile body 1, it will first squeeze the shock-absorbing wheel 6, thereby increasing the internal pressure of the pressure measuring cylinder 9, thereby pushing the main piston rod 13 and the auxiliary piston rod 14 to move upward. As the main piston rod 13 drives the synchronous pull rod 15 upward, the suppression of the reset sleeve 16 will be released. Under the push of the elastic force of the reset top spring 161, the reset sleeve 16 pulls the lock wheel frame 17 to move upward synchronously until the bottom inclined surface of the lock wheel frame 17 is aligned with the outer side of the return pressure plate 18.

[0056] Afterwards, as described in the above embodiments, due to the different hydraulic pressures between the two pressure measuring cylinders 9, the intermediate piston rod 11 moves left / right until the roller 110 contacts the stop switch 22. At the same time, the roller 110 will also cross the inclined surface of the wheel lock frame 17 and enter the wheel lock groove 180. After that, the wheel lock groove 180 will limit the retraction of the roller 110. At this time, one roller 110 is locked in the wheel lock groove 180, and the other roller 110 is pressed on the stop switch 22, ensuring that when the new energy vehicle hits the charging pile body 1 in the right direction, one motor 7 is always kept working. This method can prevent the new energy vehicle from hitting the two shock-absorbing wheels 6 at the same time. As the impact force changes, the intermediate piston rod 11 moves left and right, forcing the two motors 7 to work alternately, which easily leads to the charging pile body 1 being unable to completely stagger relative to the new energy vehicle within a limited time, thereby causing the new energy vehicle to directly hit the charging pile body 1.

[0057] When the new energy vehicle is separated from the charging pile body 1, the synchronous pull rod 15 will be reset under the push of the spring 130. During the downward movement of the synchronous pull rod 15, since the top of the reset sleeve 16 is relatively higher than the guide rod 19, the synchronous pull rod 15 will first suppress the reset sleeve 16 to move downward, and then push the wheel lock frame 17 to move downward synchronously, forcing the return groove 170 to align with the wheel lock groove 180. At this time, the wheel lock frame 17 no longer restricts the resetting of the roller 110. As the synchronous pull rod 15 continues to press downward, until the reset sleeve 16 and the top of the guide rod 19 are aligned. Finally, the synchronous pull rod 15 that continues to press downward will synchronously push the return pressure plate 18 downward, forcing the return pressure plate 18 to push the roller 110 to reset through the outer part, so that the intermediate piston rod 11 is in the middle balance position. At this point, the resetting work of the intermediate piston rod 11 is completed.

[0058] On this basis, as a supplement to Example 3, combined with Figure 5 , Figure 8 and Fig.10 It can be seen that a tooth row 21 is fixedly installed on the inner side of the guide rail 8, and the cross-sectional shape of the tooth row 21 is an isosceles triangle. When the return pressure plate 18 is reset downward, the limit rod 12 moves downward synchronously, and the limit rod 12 is pressed against the tooth row 21, and the tooth row 21 is used to limit the movement of the limit rod 12. Since the limit rod 12 is movably installed on the charging pile body 1, and is simultaneously subjected to the elastic force of the spring 130 pushing downward. When the operator manually pushes the charging pile body 1 to move along the guide rail 8, the limit rod 12 will move along the tooth row 21, and overcome the elastic force of the spring 130 during the upward movement of the limit rod 12 along the tooth row 21, thereby ensuring that the charging pile body 1 has a certain resistance during the movement, and preventing the charging pile body 1 from sliding freely on the guide rail 8 without control.

Claims

1. An anti-collision new energy vehicle charging pile, characterized in that: include: The bottom of the charging pile body (1) is movably mounted on a guide rail (8) by means of a ball bearing slide, so as to achieve directional movement of the charging pile body (1); The mounting bracket (2) is fastened to the charging pile body (1), and a collision prevention frame (5) is movably mounted on the surface of the mounting bracket and is pushed outward by a shock-absorbing push spring (301). The shock-absorbing wheel (6) mounted on the collision prevention frame (5) is used to contact the new energy vehicle; The motor (7) is controlled by a start switch (23) fixed at the end of the shock-absorbing cylinder (3). After the anti-collision frame (5) releases the suppression of the start switch (23), the motor (7) drives the shock-absorbing wheel (6) to rotate, and utilizes the friction between the shock-absorbing wheel (6) and the new energy vehicle to make the charging pile body (1) move along the guide rail (8), so that the charging pile body (1) and the new energy vehicle are staggered with each other.

2. The anti-collision new energy vehicle charging pile according to claim 1 is characterized in that: A fan blade (602) is fixedly mounted on the inner side of the damping wheel (6). When the damping wheel (6) rotates, the airflow generated by the fan blade (602) blows toward the cylindrical whistle (601) on the top of the damping wheel (6), causing the cylindrical whistle (601) to emit a sound.

3. The anti-collision new energy vehicle charging pile according to any one of claims 1 or 2, characterized in that: Also included are: The hydraulic cylinder body (4) is fixed on the surface of the mounting bracket (2), and the hydraulic cylinder body (4) and the anti-collision frame (5) are movably mounted; There are two pressure measuring cylinder bodies (9), which are respectively connected to the two pressure measuring cylinder bodies (9) by means of hydraulic pipes (10), and an intermediate piston rod (11) is movably installed between the two pressure measuring cylinder bodies (9); The roller (110) is fixed on the outer side of the intermediate piston rod (11), moves along with the intermediate piston rod (11) and presses the stop switch (22) fixed on the end of the pressure measuring cylinder (9).

4. The anti-collision new energy vehicle charging pile according to claim 3 is characterized in that: A main piston rod (13) is movably mounted on the side of the first pressure measuring cylinder (9), and a spring (130) is connected between the main piston rod (13) and the pressure measuring cylinder (9); A secondary piston rod (14) is movably mounted on the outer side of the second pressure measuring cylinder (9); The main piston rod (13) and the auxiliary piston rod (14) are connected by a synchronous pull rod (15); A damping tube (20) is fixed on the inner side of the charging pile body (1) and is located on the top of the auxiliary piston rod (14), and a damping hole (202) is opened on the outer side; A cylinder is arranged at the top of the auxiliary piston rod (14) and is inserted into the damping tube (20).

5. The anti-collision new energy vehicle charging pile according to claim 4 is characterized in that: A one-way exhaust valve (201) is fixedly installed on the top of the outer side of the damping tube (20) to achieve one-way flow of the airflow in the inner cavity of the damping tube (20) to the outside.

6. The anti-collision new energy vehicle charging pile according to claim 4 is characterized in that: Also included are: The number of rollers (110) is two; The return pressure plate (18) is placed between the two rollers (110), and its bottom is movably mounted to the inner bottom of the charging pile body (1) through a limit rod (12) with an elliptical cross-section, and a guide rod (19) located below the synchronous pull rod (15) is fixedly mounted on the top.

7. The anti-collision new energy vehicle charging pile according to claim 6, characterized in that: The return pressing plate (18) is in the shape of an isosceles triangle.

8. The anti-collision new energy vehicle charging pile according to claim 6, characterized in that: Also included are: A reset sleeve (16) is sleeved on the outside of the guide rod (19), and a reset top spring (161) is connected between the bottom and the return pressure plate (18); A wheel lock frame (17) is fixed to the bottom of the reset sleeve (16); A locking wheel groove (180) is provided at the bottom of the return pressing plate (18).

9. The anti-collision new energy vehicle charging pile according to claim 8, characterized in that: There are two wheel lock frames (17), a return groove (170) is provided in the middle of the outer side of the wheel lock frame (17), and an inclined surface aligned with the side of the return pressure plate (18) is provided at the bottom.

10. The anti-collision new energy vehicle charging pile according to claim 8, characterized in that: A tooth row (21) is fixedly mounted on the inner side of the guide rail (8).

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