Charging pile interface protection device and method thereof

Abstract

The invention discloses a charging pile interface protection device and method, and belongs to the technical field of charging piles, the charging pile interface protection device comprises a charging pile body and a charging gun body, and the charging gun body is clamped in an interface of the charging pile body. According to the device, the balancing weight drives the rubber plate to move downwards under the action of gravity, meanwhile, the pull-back spring starts to reset due to stress change, the moving plate is driven to move synchronously in the resetting process, then additional pulling force is applied to the rubber plate, and the rubber plate rapidly completes the resetting action through the synergistic effect of the balancing weight and the pull-back spring; according to the design, through reasonable linkage of a mechanical structure, the automatic shielding function after the charging pile body is taken out is achieved, under the condition that no additional operation is needed, the sealing performance and the protection performance of an interface are greatly improved, and the charging pile body is protected. And the risk that dust enters the interface can be effectively avoided.

Description

Technical Field

[0001] The present invention belongs to the technical field of charging piles, and in particular relates to a charging pile interface protection device and method thereof. Background Art

[0002] Charging piles are devices that provide electrical energy for new energy electric vehicles, similar to the gas pumps at traditional gas stations. They are connected to electric vehicles through an interface to charge the vehicle's power battery. They can be installed in public places, residential areas, unit parking lots and other scenarios to meet the charging needs of different environments. They are divided into DC fast charging piles and AC slow charging piles according to the charging speed. They have functions such as real-time monitoring, billing settlement and remote control, and are an important infrastructure for achieving the popularization of new energy vehicles and sustainable transportation development.

[0003] The prior art discloses some invention patents in the field of charging pile technology, among which the invention patent with application number CN116691386A discloses a charging pile interface protection device, which is basically described as follows: This invention discloses a charging pile interface protection device, which relates to the field of charging pile technology and has the advantage of reducing the entry of rainwater or dust and other debris into the charging interface. The key points of its technical solution are: it includes a mounting plate arranged at the charging pile interface, a square groove corresponding to the charging pile interface is provided on one side of the mounting plate, a closing plate located in the square groove is provided on the mounting plate through a moving part, and the closing plate is used to close the notch of the square groove, the moving part is used to drive the closing plate to move, and a drainage groove connected to the square groove is provided at the bottom of the mounting plate. Disadvantages of the prior art.

[0004] In the actual implementation process, in the prior art, the charging interface is usually not equipped with a special protective structure, or is only protected by a simple mechanical structure or manual operation method, such as using a closing plate, a cover plate or a moving part to cover the interface to reduce the entry of rainwater, dust and other debris. However, most of these methods rely on the user's active operation to complete the protection function, and there is a large dependence on use. If the user fails to use it according to the specification or neglects to operate it, the protective structure may not be closed correctly, thereby weakening the protection effect. As a result, the sealing performance may be affected, increasing the risk of rainwater, dust or debris entering the interface, which in turn has an adverse effect on the normal use of the charging interface and the durability of the equipment.

[0005] Based on this, the present invention designs a charging pile interface protection device and method thereof to solve the above-mentioned problems. Summary of the invention

[0006] The purpose of the present invention is to solve the problem in the prior art that the charging interface usually lacks a special protective structure, or is only protected by a simple mechanical structure or manual operation, such as a closing plate or a cover plate. Such methods rely on active operation by the user. Improper operation or negligence may cause the protective structure to not close, weaken the sealing performance, and increase the risk of rainwater, dust and other debris entering, thereby affecting the normal use of the charging interface and the durability of the equipment. A charging pile interface protection device and method are proposed.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A charging pile interface protection device comprises a charging pile body and a charging gun body, wherein the charging gun body is clamped in the interface of the charging pile body, a protective shell is fixedly connected to one side of the charging pile body, a baffle is fixedly connected to the protective shell, a shielding device for blocking dust and moisture is installed on one side of the charging pile body, a reset device for restoring the shielding of the interface is fixedly connected to the outside of the shielding device, a pressing device for maintaining the interface in a close fit during the shielding process is fixedly connected to the reset device, and a sealing device for sealing the inside of the interface is fixedly connected to the inside of the shielding device.

[0009] As a further description of the above technical solution:

[0010] The shielding device includes two slide grooves, which are symmetrically opened on the inner wall of the protective shell, and the same slide plate is slidably connected in the two slide grooves, a moving ring is fixedly connected in the slide plate, and two positioning plates are fixedly connected in the moving ring, and two pin shaft connectors are symmetrically arranged on the back of the slide plate, a connecting rod is fixedly connected outside the pin shaft connector, one end of the connecting rod is penetrated and connected with a rotating shaft, and a connecting plate is rotatably connected outside the rotating shaft, and the same counterweight block is fixedly connected to one side of the two connecting plates, and a rubber plate is fixedly connected to the counterweight block, and the rubber plate is overlapped on one side of the charging pile body.

[0011] As a further description of the above technical solution:

[0012] The inner diameter of the movable ring is slightly larger than the diameter of the cross section of the charging gun body, and the charging gun body is clamped in the two positioning plates.

[0013] As a further description of the above technical solution:

[0014] The reset device includes two limit plates, which are symmetrically installed outside the protective shell, fixedly connected to one side of the charging pile body, fixedly connected to the outside of the limit plates with a fixed plate, fixedly connected to the fixed plate with a return spring, fixedly connected to the return spring with a movable plate, and the two movable plates are symmetrically arranged outside the rubber plate.

[0015] As a further description of the above technical solution:

[0016] The pressing device includes a pressing plate, a mounting plate and a long groove, the pressing plate is fixedly connected to the rubber plate, the mounting plate is fixedly connected to one side of the baffle, a connecting column is fixedly connected to one side of the mounting plate, a sliding rod is slidably connected in the connecting column, a sphere is fixedly connected to one end of the sliding rod, a circular ring is provided on the sliding rod outer sleeve, a squeezing spring is provided on the sliding rod outer sleeve, one end of the squeezing spring is fixedly connected in the circular ring, the other end of the squeezing spring is fixedly connected in the connecting column, the long groove is opened on one side of the rubber plate, the sphere is overlapped in the long groove, an arc plate is fixedly connected in the long groove, and the arc plate is overlapped under the pressing plate.

[0017] As a further description of the above technical solution:

[0018] The side of the arc plate corresponding to the position of the sphere is arranged in an arc shape for easy extrusion.

[0019] As a further description of the above technical solution:

[0020] The sealing device includes a circular groove, a push switch, a micro air pump, an air nozzle and an air inlet. The circular groove is arranged on a side where the rubber plate overlaps with the charging pile body. An air bag is installed in the circular groove. The installation switch and the air nozzle are symmetrically installed in the protective shell. The micro air pump is fixedly connected under the protective shell. An air pipe is sleeved on the output end of the micro air pump. One end of the air pipe is sleeved outside the air nozzle. The air inlet is arranged on the bottom surface of the rubber plate.

[0021] As a further description of the above technical solution:

[0022] The air inlet corresponds to the position of the air nozzle and is slidably connected outside the air nozzle.

[0023] As a further description of the above technical solution:

[0024] The airbag is communicated with the air inlet, and the interface position of the airbag corresponds to the charging pile body.

[0025] The present invention also provides a charging pile interface protection method, comprising the following steps:

[0026] S1: When the charging gun body needs to be taken out, the charging gun body is gradually pulled out of the interface. The thrust exerted by the charging gun on the positioning plate and the moving ring gradually weakens until it disappears. In this process, the counterweight block without external force support drives the rubber plate downward under the action of gravity. At the same time, the pull-back spring begins to reset due to the change in force, and simultaneously drives the moving plate to apply additional pulling force to the rubber plate. The synergistic effect of the counterweight block and the pull-back spring ensures that the rubber plate can quickly return to the original shielding position, effectively covering the interface area of ​​the charging pile body. Through this design, the automatic shielding function after the charging pile body is taken out is realized, and the sealing and protection performance of the interface can be improved without additional operation, effectively preventing dust from invading the interface;

[0027] S2: During the resetting process of the rubber plate, its movement simultaneously drives the arc plate to move, and the ball slides along the track in the long groove and gradually approaches the arc plate. When the ball contacts the arc plate, the arc plate applies thrust to push the ball to move further. Then, when the ball moves to the position corresponding to the pressure plate, the extrusion spring generates elastic force, which drives the slide bar and the ball to complete the resetting action synchronously through the ring. During the resetting process, the ball applies thrust to the rubber plate through the pressure plate, so that the rubber plate fits tightly to one side of the charging pile body. This fitting action achieves complete coverage and sealing of the interface area, effectively avoiding gaps between the rubber plate and the charging pile body, thereby preventing dust or other debris from entering the interface.

[0028] S3: When pressure is applied to the push switch during the resetting process of the rubber plate, the push switch is triggered and the micro air pump is started. The micro air pump transmits the airflow to the air nozzle through the air tube. The airflow then further enters the air inlet connected to the air nozzle and finally fills the airbag. As the airbag gradually expands and is completely filled, its outer wall fits tightly against the interface area of ​​the charging pile body to form a comprehensive blockage. Through this design, the airbag uses a flexible seal to protect the interface area, effectively avoiding the risk of rainwater infiltration in rainy weather, while improving the sealing and protection capabilities of the interface, ensuring the long-term reliability of the charging pile body in a variety of environments.

[0029] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0030] 1. In the present invention, when the charging gun body needs to be taken out, the charging gun body is gradually moved out of the interface by pulling it. During this process, the thrust exerted by the charging gun body on the positioning plate and the moving ring gradually weakens until it disappears. At this time, due to the loss of external force support, the counterweight block drives the rubber plate to move downward under the action of gravity. At the same time, the return spring begins to reset due to the change in force, and its reset process drives the moving plate to move synchronously, thereby applying additional tension to the rubber plate. The synergistic effect of the counterweight block and the return spring enables the rubber plate to quickly complete the reset action and restore it to the original shielding position with high precision and efficiency, thereby effectively covering the interface area of ​​the charging pile body. This design realizes the automatic shielding function after the charging pile body is taken out through the reasonable linkage of the mechanical structure, greatly improves the sealing and protection performance of the interface without additional operation, and can effectively avoid the risk of dust entering the interface.

[0031] 2. In the present invention, when the rubber plate is in the resetting process, the movement of the rubber plate will simultaneously drive the arc plate to move. At this time, the sphere slides along the trajectory in the long groove and gradually approaches the arc plate. When the sphere slides to the area in contact with the arc plate, the arc plate applies a thrust to the sphere, prompting the sphere to move further. When the sphere moves to the position corresponding to the pressure plate, the extrusion spring begins to play a role, applying elastic force to the ring, driving the ring to drive the slide rod and the sphere to move synchronously and complete the resetting action. During the resetting process, the sphere applies a thrust to the pressure plate, and the thrust is transmitted to the rubber plate through the pressure plate, so that the rubber plate is tightly fitted to one side of the charging pile body. Through this fitting action, the interface area of ​​the charging pile body is effectively covered and sealed, preventing the risk of dust or other debris entering the interface due to the gap between the rubber plate and the charging pile body. The design ensures the protective performance and long-term reliability of the interface through the coordinated movement and precise matching of multiple components.

[0032] 3. In the present invention, when the rubber plate applies pressure to the push switch during the resetting process, the push switch is triggered, and the micro air pump connected thereto is started immediately. After starting, the micro air pump transmits the airflow through the air pipe to the air nozzle position, and then the airflow is further transmitted to the air inlet connected thereto via the air nozzle. The airflow entering the air inlet fills the airbag through flow, causing the airbag to gradually expand and eventually be filled. When the airbag is fully filled, its outer wall fits tightly and fully blocks the interface of the charging pile body. In this way, the airbag achieves effective sealing protection of the interface area, thereby effectively avoiding the possibility of rainwater seeping into the interface in rainy weather. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a three-dimensional structural schematic diagram of a charging pile interface protection device and method proposed by the present invention;

[0034] Figure 2This is a three-dimensional structural schematic diagram of a protective shell of a charging pile interface protection device and method thereof proposed by the present invention;

[0035] Figure 3 This is a three-dimensional structural schematic diagram of a charging pile interface protection device and a method shielding device proposed by the present invention;

[0036] Figure 4 This is a schematic structural diagram of a charging pile interface protection device and a mobile ring method thereof proposed by the present invention;

[0037] Figure 5 A charging pile interface protection device and method proposed by the present invention Figure 4 The structural diagram of the enlarged part A in the middle;

[0038] Figure 6 This is a three-dimensional structural schematic diagram of a charging pile interface protection device and a method pressing device proposed by the present invention;

[0039] Figure 7 A charging pile interface protection device and method proposed by the present invention Figure 6 The enlarged structural diagram of part B in the middle;

[0040] Figure 8 A charging pile interface protection device and method proposed by the present invention Figure 2 The enlarged structural diagram of part C in the middle;

[0041] Legend:

[0042] 1. Charging pile body; 2. Charging gun body; 3. Protective shell; 4. Baffle; 5. Shielding device; 501. Slide groove; 502. Slide plate; 503. Moving ring; 504. Positioning plate; 505. Pin connector; 506. Connecting rod; 507. Rotating shaft; 508. Connecting plate; 509. Counterweight; 510. Rubber plate; 6. Reset device; 61. Limit plate; 62. Fixed plate; 63. Pull-back spring; 64. Moving plate; 7. Pressing device; 71. Pressing plate; 72. Mounting plate; 73. Connecting column; 74. Sliding rod; 75. Sphere; 76. Ring; 77. Extrusion spring; 78. Long groove; 79. Arc plate; 8. Sealing device; 81. Circular groove; 82. Air bag; 83. Press switch; 84. Micro air pump; 85. Air pipe; 86. Air nozzle; 87. Air inlet. DETAILED DESCRIPTION

[0043] 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.

[0044] See also Figure 1-Figure 8 The present invention provides a technical solution: a charging pile interface protection device, comprising a charging pile body 1 and a charging gun body 2, the charging gun body 2 is clamped in the interface of the charging pile body 1, a protective shell 3 is fixedly connected to one side of the charging pile body 1, a baffle 4 is fixedly connected to the protective shell 3, a shielding device 5 for blocking dust and moisture is installed on one side of the charging pile body 1, a reset device 6 for restoring the shielding of the interface is fixedly connected to the outside of the shielding device 5, a pressing device 7 for keeping the interface in contact during the shielding process is fixedly connected to the reset device 6, and a sealing device 8 for sealing the inside of the interface is fixedly connected to the inside of the shielding device 5.

[0045] Specifically, Figure 2-Figure 6 As shown, the shielding device 5 includes two slide grooves 501, and the two slide grooves 501 are symmetrically opened on the inner wall of the protective shell 3. The same slide plate 502 is slidably connected in the two slide grooves 501, and a moving ring 503 is fixedly connected in the slide plate 502. Two positioning plates 504 are fixedly connected in the moving ring 503. Two pin connectors 505 are symmetrically arranged on the back of the slide plate 502. A connecting rod 506 is fixedly connected outside the pin connector 505. A rotating shaft 507 is penetrated and connected to one end of the connecting rod 506. A connecting plate 508 is rotatably connected outside the rotating shaft 507. One side of the two connecting plates 508 is fixedly connected to the same counterweight block 509, and a rubber plate 510 is fixedly connected to the counterweight block 509. The rubber plate 510 is overlapped on one side of the charging pile body 1. The inner diameter of the moving ring 503 is slightly larger than the diameter of the cross section of the charging gun body 2. The charging gun body 2 is clamped in the two positioning plates 504.

[0046] The shielding device 5 can not only achieve precise displacement control through the sliding cooperation of the slide groove 501, the slide plate 502 and the movable ring 503, but also effectively improve the stability and durability of the structure. The symmetrical design of the slide groove 501 can reduce the friction loss caused by the lateral force during the sliding process while ensuring the structural balance, thereby extending the service life. In addition, the combined design of the counterweight block 509 and the rubber plate 510 can reduce the excessive reliance on the spring through the gravity of the counterweight while ensuring the rapid reset of the rubber plate 510, thereby reducing the risk of spring fatigue failure and further improving the reliability of the device.

[0047] Specifically, Figure 3As shown, the reset device 6 includes two limit plates 61, which are symmetrically installed outside the protective shell 3, and the limit plates 61 are fixedly connected to one side of the charging pile body 1. A fixed plate 62 is fixedly connected to the outside of the limit plate 61, and a return spring 63 is fixedly connected to the fixed plate 62. A movable plate 64 is fixedly connected to the return spring 63, and the two movable plates 64 are symmetrically arranged outside the rubber plate 510.

[0048] The reset device 6 utilizes the coordinated design of the return spring 63 and the limit plate 61 to provide a stable auxiliary force when the rubber plate 510 returns to the shielding position, thereby ensuring the rapidity and efficiency of the reset process. The symmetrical arrangement of the limit plate 61 plays a guiding role in the structure, which can effectively prevent the rubber plate 510 from getting stuck due to tilting or obstruction during the reset process, thereby ensuring the smoothness and accuracy of the action. The addition of the movable plate 64 further enhances the strength of the reset device 6. By connecting with the return spring 63, the tension directly borne by the rubber plate 510 is reduced, effectively reducing the risk of deformation of the rubber plate 510. The structural design of the overall reset device 6 not only enhances the shielding effect of the interface area, but also enhances the stability and durability of the device under long-term and frequent use.

[0049] Specifically, Figure 6-Figure 8 As shown, the pressing device 7 includes a pressing plate 71, a mounting plate 72 and a long groove 78. The pressing plate 71 is fixedly connected to the rubber plate 510, the mounting plate 72 is fixedly connected to one side of the baffle 4, a connecting column 73 is fixedly connected to one side of the mounting plate 72, a sliding rod 74 is slidably connected in the connecting column 73, a ball 75 is fixedly connected to one end of the sliding rod 74, a circular ring 76 is provided on the outer sleeve of the sliding rod 74, an extrusion spring 77 is provided on the outer sleeve of the sliding rod 74, one end of the extrusion spring 77 is fixedly connected in the circular ring 76, and the other end of the extrusion spring 77 is fixedly connected in the connecting column 73, a long groove 78 is opened on one side of the rubber plate 510, the ball 75 is overlapped in the long groove 78, an arc plate 79 is fixedly connected in the long groove 78, the arc plate 79 is overlapped under the pressing plate 71, and a side of the arc plate 79 corresponding to the position of the ball 75 is set to an arc shape for easy extrusion.

[0050] The rubber plate 510 fits the interface of the charging pile body 1 with high precision, and the arc plate 79 is designed to be easy to squeeze, which can make the sphere 75 obtain a more uniform force distribution when moving in the long groove 78, thereby avoiding the stagnation of the sphere 75 caused by lateral force during the force process. The sliding connection between the slide rod 74 and the ring 76 further enhances the movement flexibility of the device, making the reset action smoother and smoother. The elastic force of the extrusion spring 77 provides additional fitting force during resetting, which effectively enhances the sealing performance of the rubber plate 510 and the surface of the charging pile body 1. In addition, the modular design of the pressing device 7 facilitates maintenance and replacement, reduces the risk of overall failure due to damage to a single component, and increases the service life of the device.

[0051] Specifically, Figure 2-Figure 8 As shown, the sealing device 8 includes a circular groove 81, a push switch 83, a micro air pump 84, an air nozzle 86 and an air inlet 87. The circular groove 81 is provided on a side where the rubber plate 510 overlaps with the charging pile body 1. An airbag 82 is installed in the circular groove 81. The installation switch and the air nozzle 86 are symmetrically installed in the protective shell 3. The micro air pump 84 is fixedly connected under the protective shell 3. The output end of the micro air pump 84 is sleeved with an air pipe 85, and one end of the air pipe 85 is sleeved outside the air nozzle 86. The air inlet 87 is provided on the bottom surface of the rubber plate 510. The air inlet 87 corresponds to the position of the air nozzle 86 and is slidably connected to the outside of the air nozzle 86. The airbag 82 is connected to the air inlet 87, and the airbag 82 corresponds to the interface position of the charging pile body 1.

[0052] The sealing device 8 achieves comprehensive sealing of the interface area through the flexible expansion design of the airbag 82. The airbag 82 can adapt to the tiny irregularities on the surface of the charging pile interface during the expansion process, thereby avoiding the protection failure problem caused by the tiny gap on the edge of the interface. The linkage design of the push switch 83 and the micro air pump 84 realizes the automatic inflation of the airbag 82 without manual intervention, which improves the operation convenience of the device. The sliding connection between the air nozzle 86 and the air inlet 87 further enhances the sealing performance and reduces the risk of leakage caused by interface misalignment. In addition, the flexible material of the airbag 82 also has a certain buffering effect, which can effectively absorb the impact of external forces on the interface area of ​​the charging pile body 1 and avoid damage to the interface components. The overall sealing device 8 not only enhances the protection capability of the interface, but also significantly improves the adaptability of the device under severe weather conditions.

[0053] A charging pile interface protection method comprises the following steps:

[0054] S1: When the charging gun body 2 needs to be taken out, the charging gun body 2 is gradually pulled out from the interface, and the thrust exerted by the charging gun on the positioning plate 504 and the moving ring 503 gradually weakens until it disappears. In this process, the counterweight block 509 that loses external force support drives the rubber plate 510 to move downward under the action of gravity. At the same time, the return spring 63 begins to reset due to the change in force, and simultaneously drives the moving plate 64 to apply additional tension to the rubber plate 510. The synergistic effect of the counterweight block 509 and the return spring 63 ensures that the rubber plate 510 can quickly return to the original shielding position, effectively covering the interface area of ​​the charging pile body 1. Through this design, the automatic shielding function after the charging pile body 1 is taken out is realized, and the sealing and protection performance of the interface can be improved without additional operation, effectively preventing dust from invading the interface;

[0055] S2: During the resetting process of the rubber plate 510, its movement simultaneously drives the arc plate 79 to move, and the ball 75 slides along the track in the long groove 78 and gradually approaches the arc plate 79. When the ball 75 contacts the arc plate 79, the arc plate 79 applies a thrust to push the ball 75 to move further. Subsequently, when the ball 75 moves to a position corresponding to the pressure plate 71, the extrusion spring 77 generates an elastic force, which drives the slide bar 74 and the ball 75 to synchronously complete the resetting action through the ring 76. During the resetting process, the ball 75 applies a thrust to the rubber plate 510 through the pressure plate 71, so that the rubber plate 510 fits tightly to one side of the charging pile body 1. This fitting action achieves complete coverage and sealing of the interface area, effectively avoiding the appearance of a gap between the rubber plate 510 and the charging pile body 1, thereby preventing dust and other debris from entering the interface.

[0056] S3: When pressure is applied to the push switch 83 during the resetting process of the rubber plate 510, the push switch 83 is triggered and the micro air pump 84 is started. The micro air pump 84 transmits the airflow to the air nozzle 86 through the air pipe 85, and then the airflow further enters the air inlet 87 connected to the air nozzle 86, and finally fills the airbag 82. As the airbag 82 gradually expands and is completely filled, its outer wall fits tightly against the interface area of ​​the charging pile body 1 to form a comprehensive blockage. Through this design, the airbag 82 uses a flexible seal to protect the interface area, effectively avoiding the risk of rainwater infiltration in rainy weather, while improving the sealing and protection capabilities of the interface, ensuring the long-term reliability of the charging pile body 1 in various environments.

[0057] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A charging pile interface protection device, comprising a charging pile body (1) and a charging gun body (2), characterized in that: The charging gun body (2) is clamped in the interface of the charging pile body (1); a protective shell (3) is fixedly connected to one side of the charging pile body (1); a baffle (4) is fixedly connected to the protective shell (3); a shielding device (5) for blocking dust and moisture is installed on one side of the charging pile body (1); a reset device (6) for restoring the shielding of the interface is fixedly connected to the outside of the shielding device (5); a pressing device (7) for maintaining the interface in a closed state during the shielding process is fixedly connected to the reset device (6); and a sealing device (8) for sealing the interface is fixedly connected to the inside of the shielding device (5).

2. A charging pile interface protection device according to claim 1, characterized in that: The shielding device (5) comprises two slide grooves (501), the two slide grooves (501) are symmetrically arranged on the inner wall of the protective shell (3), the two slide grooves (501) are slidably connected with the same slide plate (502), the slide plate (502) is fixedly connected with a moving ring (503), the moving ring (503) is fixedly connected with two positioning plates (504), the back side of the slide plate (502) is symmetrically provided with two pin shaft connecting members (505), the A connecting rod (506) is fixedly connected to the outside of the pin connecting member (505); a rotating shaft (507) is passed through one end of the connecting rod (506); a connecting plate (508) is rotatably connected to the outside of the rotating shaft (507); one side of the two connecting plates (508) is fixedly connected to the same counterweight block (509); a rubber plate (510) is fixedly connected to the counterweight block (509); and the rubber plate (510) is overlapped on one side of the charging pile body (1).

3. A charging pile interface protection device according to claim 2, characterized in that: The inner diameter of the movable ring (503) is slightly larger than the diameter of the cross section of the charging gun body (2), and the charging gun body (2) is clamped in two positioning plates (504).

4. A charging pile interface protection device according to claim 3, characterized in that: The reset device (6) comprises two limit plates (61), the two limit plates (61) are symmetrically mounted outside the protective shell (3), the limit plates (61) are fixedly connected to one side of the charging pile body (1), a fixed plate (62) is fixedly connected to the outside of the limit plates (61), a return spring (63) is fixedly connected to the fixed plate (62), a movable plate (64) is fixedly connected to the return spring (63), and the two movable plates (64) are symmetrically arranged outside the rubber plate (510).

5. A charging pile interface protection device according to claim 4, characterized in that: The pressing device (7) comprises a pressing plate (71), a mounting plate (72) and a long groove (78); the pressing plate (71) is fixedly connected to the rubber plate (510); the mounting plate (72) is fixedly connected to one side of the baffle (4); a connecting column (73) is fixedly connected to one side of the mounting plate (72); a sliding rod (74) is slidably connected inside the connecting column (73); a ball (75) is fixedly connected to one end of the sliding rod (74); a circular ring is provided on the outer cover of the sliding rod (74) (76), the sliding rod (74) is provided with an extrusion spring (77) on its outer sleeve, one end of the extrusion spring (77) is fixedly connected in the circular ring (76), the other end of the extrusion spring (77) is fixedly connected in the connecting column (73), the long groove (78) is opened on one side of the rubber plate (510), the ball (75) is overlapped in the long groove (78), the long groove (78) is fixedly connected with an arc plate (79), and the arc plate (79) is overlapped under the pressure plate (71).

6. A charging pile interface protection device according to claim 5, characterized in that: The side of the arc plate (79) corresponding to the position of the sphere (75) is arranged in an arc shape to facilitate extrusion.

7. A charging pile interface protection device according to claim 6, characterized in that: The sealing device (8) comprises a circular groove (81), a push switch (83), a micro air pump (84), an air nozzle (86) and an air inlet (87); the circular groove (81) is provided on a side where the rubber plate (510) and the charging pile body (1) overlap; an air bag (82) is installed in the circular groove (81); the installation switch and the air nozzle (86) are symmetrically installed in the protective shell (3); the micro air pump (84) is fixedly connected under the protective shell (3); an air pipe (85) is sleeved on the output end of the micro air pump (84); one end of the air pipe (85) is sleeved outside the air nozzle (86); and the air inlet (87) is provided on the bottom surface of the rubber plate (510).

8. A charging pile interface protection device according to claim 7, characterized in that: The air inlet (87) corresponds to the position of the air nozzle (86) and is slidably connected to the outside of the air nozzle (86).

9. A charging pile interface protection device according to claim 8, characterized in that: The airbag (82) is connected to the air inlet (87), and the airbag (82) corresponds to the interface position of the charging pile body (1).

10. A charging pile interface protection method, according to the charging pile interface protection device according to any one of claims 1 to 9, characterized in that: The steps include: S1: When the charging gun body (2) needs to be taken out, the charging gun body (2) is gradually pulled out from the interface, and the thrust exerted by the charging gun on the positioning plate (504) and the moving ring (503) gradually weakens until it disappears. During this process, the counterweight block (509) that has lost external force support drives the rubber plate (510) to move downward under the action of gravity. At the same time, the return spring (63) begins to reset due to the change in force, and simultaneously drives the moving plate (64) to apply additional pulling force to the rubber plate (510). The synergistic effect of the counterweight block (509) and the return spring (63) ensures that the rubber plate (510) can quickly return to the original shielding position, effectively covering the interface area of ​​the charging pile body (1). Through this design, the automatic shielding function after the charging pile body (1) is taken out is realized, and the sealing and protection performance of the interface can be improved without additional operation, effectively preventing dust from invading the interface; S2: During the process of the rubber plate (510) being reset, its movement simultaneously drives the arc plate (79) to move, and the ball (75) slides along the track in the long groove (78) and gradually approaches the arc plate (79). When the ball (75) contacts the arc plate (79), the arc plate (79) applies a thrust to push the ball (75) to move further. Subsequently, when the ball (75) moves to a position corresponding to the pressure plate (71), the compression spring (77) generates an elastic force, and the ball (75) is pushed to the position corresponding to the pressure plate (71). The circular ring (76) drives the slide bar (74) and the ball (75) to synchronously complete the resetting action. During the resetting process, the ball (75) applies a thrust to the rubber plate (510) through the pressure plate (71), so that the rubber plate (510) is tightly fitted to one side of the charging pile body (1). This fitting action achieves complete coverage and sealing of the interface area, effectively avoiding the formation of a gap between the rubber plate (510) and the charging pile body (1), thereby preventing dust or other debris from entering the interface. S3: When the rubber plate (510) applies pressure to the push switch (83) during the resetting process, the push switch (83) is triggered and the micro air pump (84) is started. The micro air pump (84) transmits the airflow to the air nozzle (86) through the air pipe (85). The airflow then further enters the air inlet (87) connected to the air nozzle (86) and finally fills the airbag (82). As the airbag (82) gradually expands and is completely filled, its outer wall fits tightly to the interface area of ​​the charging pile body (1) to form a comprehensive blockage. Through this design, the airbag (82) uses a flexible seal to protect the interface area, effectively avoiding the risk of rainwater infiltration in rainy weather, while improving the sealing and protection capabilities of the interface, ensuring the long-term reliability of the charging pile body (1) in various environments.

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