Anti-drag car charging pile

Abstract

The present invention relates to the field of charging piles, and specifically to an anti-drag automobile charging pile. It includes a charging pile cabinet, a cable, a charging gun head and a detection and triggering mechanism; the charging gun head includes a handle, a gun head cover arranged at the end of the handle, a plug arranged at the end of the gun head cover, a locking assembly, a push bar and an ejection device, the locking assembly includes a pressure plate rotatably arranged in the gun head cover, a snap plate connected to the pressure plate snap, a spring b tensioned between the inner surface of the gun head cover and the pressure plate, and a button slidably arranged on the gun head cover and abutting against the end of the pressure plate, the ejection device includes two groups of symmetrically distributed ejection mechanisms, the ejection mechanism includes a moving plate, an electric push rod arranged in the gun head cover and driving the moving plate to move linearly, and two push rods symmetrically arranged on the moving plate; the detection and triggering mechanism is triggered when it is detected that the cable is dragged to a degree exceeding a preset threshold. The present invention can eject the charging gun head from the charging socket when a dragging situation occurs.

Description

Technical Field

[0001] The invention relates to the field of charging piles, and in particular to an anti-drag automobile charging pile. Background Art

[0002] Charging piles refer to charging equipment that provides charging services for electric vehicles. They are mainly divided into floor-standing charging piles and wall-mounted charging piles. They mainly adopt charging methods based on time, electricity and amount. They are installed in public buildings and residential parking lots or charging stations. They can charge various models of electric vehicles according to different voltage levels.

[0003] Chinese patent announcement number CN216300820U discloses an electric vehicle charging pile with good protective performance, including a charging pile body, both sides of the charging pile body are fixedly connected with dampers, the side of the damper away from the charging pile body is fixedly connected with a movable plate, the side of the movable plate away from the damper is fixedly connected with a first spring, the side of the first spring away from the movable plate is fixedly connected with a first protective plate, and the top of the movable plate is fixedly connected with a connecting plate, thereby achieving the purpose of good use effect, being able to effectively buffer the impact force, and improving the safety of the electric vehicle charging pile when in use.

[0004] However, the above technical solution has the following shortcomings:

[0005] Only anti-collision protection is considered, but the dragging of the charging gun by the vehicle is not considered. When the charging pile is charging the vehicle or charging is completed but the charging gun is not unplugged, if the driver does not notice that the charging gun is still plugged into the vehicle's charging socket and directly starts the vehicle and drives away, the charging gun will drag the cable and damage the charging pile, which will also cause damage to the vehicle's charging socket and even cause a safety accident, which is very risky. Summary of the invention

[0006] The purpose of the present invention is to address the problems existing in the background technology and to propose an anti-drag car charging pile which can eject the charging gun head from the vehicle charging socket when the vehicle is dragged.

[0007] The technical solution of the present invention is an anti-drag automobile charging pile, comprising a charging pile cabinet, a cable, a charging gun head and a detection and triggering mechanism; the cable extends from the inner side of the charging pile cabinet to the outer side; the charging gun head is electrically connected to the cable, comprising a handle, a gun head cover arranged at the end of the handle, a plug arranged at the end of the gun head cover, a locking assembly, a push strip and an ejection device, the locking assembly comprising a pressure plate rotatably arranged in the gun head cover, a snap plate snap-connected to the pressure plate, a spring b tensioned between the inner surface of the gun head cover and the pressure plate, and a button slidably arranged on the gun head cover and abutting against the end of the pressure plate, the ejection device comprising two groups of symmetrically distributed ejection mechanisms, the ejection mechanism comprising a moving plate, an electric push rod arranged in the gun head cover and driving the moving plate to move linearly, and two push rods symmetrically arranged on the moving plate, two push strips are symmetrically arranged on the moving plate, and when the push rods extend to the outside of the gun head cover, the push strip releases the snap connection between the pressure plate and the snap plate; the detection and triggering mechanism is triggered when it is detected that the degree of dragging of the cable exceeds a preset threshold.

[0008] Preferably, the detection and triggering mechanism includes a central controller, a mounting sleeve sleeved on the cable, a pressure sensor arranged on the mounting sleeve, a guide cylinder arranged on the charging pile cabinet, a sliding rod slidably arranged on the guide sleeve, an end plate arranged at the end of the sliding rod, and a spring a connected between the guide cylinder and the end plate. The spring a is sleeved on the outside of the sliding rod, the pressure sensor faces the end plate, the pressure sensor is communicatively connected to the central controller, the central controller is control-connected to the electric push rod, and the mounting sleeve sliding damping is arranged on the charging pile cabinet.

[0009] Preferably, one end of the buckle plate has an anti-drop buckle and the other end has two symmetrically distributed elastic buckles. The outer ends of the elastic buckles have an inclined surface. The end of the pressure plate has a sliding channel for the two elastic buckles to extend into, a limiting groove for the ends of the elastic buckles to be inserted into, and a through channel for the push strip to pass through. The width of the through channel is smaller than the width of the limiting groove. When the two push strips move toward the buckle plate, the two elastic buckles are pushed inward through the inclined surface and the ends of the elastic buckles are moved out from the inside of the limiting groove.

[0010] Preferably, a push head is provided at the end of the push rod, and a through hole is provided at the end of the gun head cover for the push head to pass through, and a sealing plug is detachably mounted at the through hole.

[0011] Preferably, four storage grooves are evenly arranged in an annular shape on the outer circumferential surface of the gun head cover, and a connecting hole is arranged at the bottom of the storage groove. An airbag protection assembly corresponding to the push rod is arranged on the gun head cover. The airbag protection assembly includes a piston cylinder arranged in the gun head cover, a piston slidably arranged in the piston cylinder and connected to the push rod, a connecting cylinder connecting the piston cylinder and the connecting hole, and an airbag sealed and connected to the bottom of the storage groove and connected to the connecting hole. The push rod passes through the piston cylinder and is sealed and connected to the piston cylinder at the penetration.

[0012] Preferably, a control valve assembly is provided in the connecting cylinder, and the control valve assembly includes a plurality of opening and closing assemblies evenly distributed around the central axis of the connecting cylinder, and the opening and closing assembly includes a conical inclined plate rotatably provided in the connecting cylinder and a spring c connected between the inner wall of the connecting cylinder and the conical inclined plate. When the piston slides toward the inner side of the piston cylinder and blows air to the airbag through the connecting cylinder, the conical inclined plates in the plurality of opening and closing assemblies are pushed open and the spring c is compressed. When the piston stops moving or moves in the opposite direction, the spring c pushes the conical inclined plates, and the plurality of conical inclined plates are closed.

[0013] Preferably, after the multiple conical inclined plates are closed, ventilation gaps are provided between adjacent conical inclined plates.

[0014] Preferably, an elastic baffle is provided on the handle, and the elastic baffle has a plurality of extended plate portions which are evenly distributed around the central axis and extend outward.

[0015] Compared with the prior art, the present invention has the following beneficial technical effects:

[0016] The present invention can automatically eject the charging gun head from the vehicle charging socket when the vehicle is dragged, avoiding major damage to the vehicle and the charging pile, and reducing the risk. When the driver starts the car without unplugging the charging gun head from the vehicle charging socket, the cable will be tightened, and the pressure sensor will be driven to move through the installation sleeve. The pressure value detected by the pressure sensor will gradually increase. When the preset threshold is reached, the central controller will notify the electric push rod to move, and the charging gun head will be ejected from the vehicle charging socket to avoid being dragged further and prevent further losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0018] Figure 2 It is a schematic diagram of the distribution of pressure sensors and end plates;

[0019] Figure 3 This is a partial structural cross-sectional view of the charging gun head according to an embodiment of the present invention;

[0020] Figure 4 for Figure 3 A partial structural cross-sectional view;

[0021] Figure 5 for Figure 4 A magnified view of the structure at center A;

[0022] Figure 6 It is a schematic diagram of the structure of the airbag after inflation;

[0023] Figure 7 It is a cross-sectional view of the communication principle structure of the piston cylinder, the connecting cylinder and the air bag;

[0024] Figure 8 for Figure 7 A magnified view of the structure at point B.

[0025] Figure numerals: 1. Charging pile cabinet; 2. Cable; 3. Mounting sleeve; 4. Pressure sensor; 5. Guide cylinder; 6. Slide rod; 7. End plate; 8. Spring a; 9. Handle; 10. Elastic baffle; 11. Gun head cover; 111. Through hole; 12. Plug; 131. Pressure plate; 1311. Sliding channel; 1312. Limiting groove; 1313. Through channel; 132. Buckle plate; 1321. Elastic buckle; 14. Spring b; 15. Button; 16. Electric push rod; 17. Moving plate; 18. Push strip; 19. Push rod; 20. Piston; 21. Push head; 22. Piston cylinder; 23. Connecting cylinder; 24. Conical inclined plate; 25. Spring c; 26. Airbag; 27. Blockage. DETAILED DESCRIPTION

[0026] Embodiment 1, as Figure 1-Figure 8 As shown, an anti-drag automobile charging pile proposed in this embodiment includes a charging pile cabinet 1, a cable 2, a charging gun head and a detection and triggering mechanism.

[0027] The charging gun head is electrically connected to the cable 2, and the charging gun head includes a handle 9, a gun head cover 11 disposed at the end of the handle 9, a plug 12 disposed at the end of the gun head cover 11, a locking assembly, a push bar 18, and an ejection device. The locking assembly includes a pressure plate 131 rotatably disposed in the gun head cover 11, a snap plate 132 snap-connected to the pressure plate 131, a spring b14 tensioned between the inner surface of the gun head cover 11 and the pressure plate 131, and a button 15 slidably disposed on the gun head cover 11 and abutting against the end of the pressure plate 131. The gun head cover 11 has a drop-off channel for the snap plate 132 to pass through, the width of the drop-off channel is greater than the maximum dimension of the snap plate 132 along the width direction, and the vertical dimension of the drop-off channel is greater than the maximum dimension of the snap plate 132 along the thickness direction. When the user uses the charging gun head to charge, the plug 12 of the charging gun head is inserted into the charging socket of the vehicle. The charging socket has a card slot. The spring b14 tensions the pressure plate 131 so that the outer end of the snap plate 132 can be stuck in the card slot to prevent the charging gun head from falling off. The outer periphery of the button 15 has an anti-drop ring to prevent the button 15 from falling off the gun head cover 11. If the charging gun head is to be unplugged, the user needs to press the button 15, and the button 15 presses down the pressure plate 131, and the pressure plate 131 drives the snap plate 132 to rotate, and the end of the snap plate 132 is turned away from the card slot. Only then can the charging gun head be unplugged.

[0028] If the vehicle drives away without unplugging the charging gun head, the charging gun head will be ejected through the ejection device and the push bar 18. The ejection device includes two sets of symmetrically distributed ejection mechanisms, which include a moving plate 17, an electric push rod 16 disposed in the gun head cover 11 and driving the moving plate 17 to move linearly, and two push rods 19 symmetrically disposed on the moving plate 17. Two push bars 18 are symmetrically disposed on the moving plate 17. When the push rods 19 extend out of the gun head cover 11, the push bars 18 release the buckle connection between the pressure plate 131 and the buckle plate 132. When ejecting the charging gun head, the electric push rod 16 drives the moving plate 17 to move linearly, and the moving plate 17 drives the push bar 18 and the push rod 19 to move. The push bar 18 first releases the buckle connection between the snap plate 132 and the pressure plate 131. While keeping the snap plate 132 and the pressure plate 131 unbuckled, the push bar 18 and the push rod 19 continue to move, and the push rod 19 extends out of the gun head cover 11 and abuts against the vehicle charging socket. As the push rod 19 continues to move, the charging gun head can be ejected outward, the pressure plate 131 moves outward with the gun head cover 11, and the buckle plate 132 remains on the charging socket. At this time, even if the vehicle continues to drive, the charging pile will not be damaged because the charging gun head has been detached.

[0029] The detection and trigger mechanism is triggered when it detects that the cable 2 is dragged to a degree exceeding a preset threshold. The detection and trigger mechanism includes a central controller, a mounting sleeve 3 sleeved on the cable 2, a pressure sensor 4 arranged on the mounting sleeve 3, a guide cylinder 5 arranged on the charging pile cabinet 1, a slide rod 6 slidably arranged on the guide cylinder 5, an end plate 7 arranged at the end of the slide rod 6, and a spring a8 connected between the guide cylinder 5 and the end plate 7, the spring a8 is sleeved on the outside of the slide rod 6, the pressure sensor 4 faces the end plate 7, the pressure sensor is connected to the central controller for communication, the central controller is connected to the electric push rod 16 for control, and the mounting sleeve 3 sliding damping is arranged on the charging pile cabinet 1. When the user normally grasps the charging gun head and pulls the cable 2, the friction resistance between the mounting sleeve 3 and the charging pile cabinet 1 will not be overcome, the mounting sleeve 3 remains stationary on the charging pile cabinet 1, and the pressure sensor 4 is not released from the end plate 7. When the charging gun head is not unplugged from the vehicle and the vehicle is driving, the vehicle first drives the cable 2 to be tensioned through the charging gun head, and then overcomes the friction resistance between the mounting sleeve 3 and the charging pile cabinet 1 to drive the mounting sleeve 3 to move outward, and the mounting sleeve 3 drives the pressure sensor 4 to move. The pressure sensor 4 is pressed against the end plate 7, and the spring a8 is gradually compressed. The pressure value detected by the pressure sensor 4 gradually increases. When the pressure value increases to the preset threshold value, the central controller controls the electric push rod 16 to immediately drive the moving plate 17 to move, and ejects the charging gun head from the vehicle charging socket.

[0030] The cable 2 extends from the inside of the charging pile cabinet 1 to the outside. For the portion of the cable 2 located inside the charging pile cabinet 1, there is a section that is loosely distributed. When the cable 2 is pulled and the mounting sleeve 3 is pulled outward on the charging pile cabinet 1, the loosely distributed cable 2 can prevent the inner cable 2 from being over-tightened and broken. Before it is over-tightened, the detection and triggering mechanism can be triggered to eject the charging gun head from the vehicle charging socket.

[0031] This embodiment can automatically eject the charging gun head from the vehicle charging socket when the vehicle is dragged, avoiding major damage to the vehicle and the charging pile, and reducing the risk. When the driver drives the car without unplugging the charging gun head from the vehicle charging socket, the cable 2 will be tightened, and then drive the installation sleeve 3 to move, and the installation sleeve 3 drives the pressure sensor 4 to be crimped on the end plate 7. As the spring a8 is compressed, the pressure value detected by the pressure sensor 4 gradually increases. When the preset threshold is reached, the central controller notifies the electric push rod 16 to move, ejecting the charging gun head from the vehicle charging socket to avoid continued dragging and prevent further losses.

[0032] Embodiment 2, as Figure 1-Figure 8 As shown, the anti-drag car charging pile proposed in this embodiment is compared with the first embodiment. In this embodiment, one end of the buckle plate 132 has an anti-drop buckle, and the other end has two symmetrically distributed elastic buckles 1321. The outer end of the elastic buckle 1321 has an inclined surface, and the end of the pressure plate 131 has a sliding channel 1311 for the two elastic buckles 1321 to extend into, a limiting groove 1312 for the end of the elastic buckle 1321 to be inserted into, and a through channel 1313 for the push bar 18 to pass through. The width of the through channel 1313 is smaller than the width of the limiting groove 1312, so the limiting groove 1312 can limit the elastic buckle 1321, but still allow the through channel 1313 to have enough space for the push bar 18 to pass through. When the two push strips 18 move toward the snap plate 132, the two elastic buckles 1321 are pushed inward through the inclined surface, so that the ends of the elastic buckles 1321 move out from the inside of the limiting groove 1312. As the push strip 18 continues to move, the elastic buckles 1321 will not enter the limiting groove 1312 again. Until the push rod 19 abuts against the vehicle charging socket and ejects the charging gun head in the opposite direction, the pressure plate 131 moves outward, the sliding channel 1311 moves outward, the elastic buckle 1321 detaches from the sliding channel 1311, and the snap plate 132 is dropped to prevent the snap plate 132 from affecting the ejection of the rest of the charging gun head. When the charging gun head is used later, the charging pile maintenance personnel only need to replace the new snap plate 132 and install it, which is low cost.

[0033] Embodiment three, as Figure 1-Figure 8As shown, the present embodiment proposes an anti-drag car charging pile. Compared with the first embodiment, in the present embodiment, a push head 21 is provided at the end of the push rod 19, and a through hole 111 is provided at the end of the gun head cover 11 for the push head 21 to pass through. A sealing plug is detachably mounted at the through hole 111. When the charging gun head is not ejected, the sealing plug can play a certain role in dust and water prevention. When the charging gun head is ejected, the push rod 19 drives the push head 21 to move outward, the push head 21 passes through the through hole 111 and pushes the sealing plug open. The sealing plug will not affect the normal extension of the push head 21. The push head 21 abuts against the vehicle charging socket and ejects the charging gun head in the opposite direction.

[0034] Embodiment 4, as Figure 1-Figure 8 As shown, the present embodiment proposes an anti-drag car charging pile. Compared with the first embodiment, in the present embodiment, four storage grooves are evenly arranged in an annular shape on the outer circumference of the gun head cover 11, and a connecting hole is arranged at the bottom of the storage groove. The gun head cover 11 is provided with an airbag protection assembly corresponding to the push rod 19 one by one. The airbag protection assembly includes a piston cylinder 22 arranged in the gun head cover 11, a piston 20 slidably arranged in the piston cylinder 22 and connected to the push rod 19, a connecting cylinder 23 connecting the piston cylinder 22 and the connecting hole, and an airbag 26 sealedly connected to the bottom of the storage groove and connected to the connecting hole. The push rod 19 penetrates the piston cylinder 22 and is sealedly connected to the piston cylinder 22 at the penetration. When the push rod 19 moves outward, it will drive the piston 20 to move, and the piston 20 pushes the air in the piston cylinder 22, and squeezes the air into the airbag 26 through the connecting cylinder 23. The airbag 26 bulges to provide protection for the charging gun head. After the charging gun head is ejected and falls, multiple air bags 26 that swell in multiple directions provide cushioning, thereby reducing the impact and collision intensity of the charging gun head.

[0035] Further, a plug 27 can be provided at the outer end of the airbag 26. When the airbag 26 is received in the receiving groove, the plug 27 is blocked at the receiving groove notch of the gun head cover 11 to ensure structural regularity. When the airbag 26 is inflated, the airbag 26 expands and pushes the plug 27 away from the gun head cover 11.

[0036] In addition, a control valve assembly may be further provided in the connecting cylinder 23, and the control valve assembly includes multiple groups of opening and closing assemblies evenly distributed around the central axis of the connecting cylinder 23. The opening and closing assembly includes a conical inclined plate 24 rotatably provided in the connecting cylinder 23 and a spring c25 connected between the inner wall of the connecting cylinder 23 and the conical inclined plate 24. When the piston 20 slides toward the inner side of the piston cylinder 22 and blows air to the airbag 26 through the connecting cylinder 23, the conical inclined plates 24 in the multiple groups of opening and closing assemblies are pushed open and the spring c25 is compressed. When the piston 20 stops moving or moves in the reverse direction, the spring c25 pushes the conical inclined plates 24, and the multiple conical inclined plates 24 are closed, and the conical tops after closing face the airbag 26. When the charging gun head is ejected but has not landed, the electric push rod 16 pushes the movable plate 17 to move in the opposite direction, the push rod 19 drives the piston 20 to move in the opposite direction, and the multiple conical inclined plates 24 close, so that sufficient gas is maintained in the airbag 26 for buffering protection. The push rod 19 itself will move into the inside of the gun head cover 11 for protection to prevent direct collision impact.

[0037] The handle 9 is provided with an elastic baffle 10, which has a plurality of extended plate portions evenly distributed around the central axis and extending outward. On the basis of the protection of the airbag 26, the elastic baffle 10 is used for protection, and the two work together to protect the two ends of the charging gun head, respectively, with a larger protection range and better protection effect.

[0038] Embodiment 5, as Figure 1-Figure 8 As shown, the anti-drag car charging pile proposed in this embodiment is compared with the fourth embodiment. In this embodiment, after the multiple conical inclined plates 24 are closed, there are ventilation gaps between the adjacent conical inclined plates 24. When the charging gun head is ejected but not landed, the electric push rod 16 pushes the moving plate 17 to move in the opposite direction, and the piston 20 moves in the opposite direction. When the piston 20 moves in the opposite direction quickly to the extreme position, because the ventilation gap is small, the air in the airbag 26 will not instantly enter the piston cylinder 22 in large quantities, and the air pressure in the piston cylinder 22 is lower than the air pressure in the airbag 26. At this time, the charging gun head is ejected but not landed, and the gas in the airbag 26 will gradually enter the piston cylinder 22 through the ventilation gap. After the charging gun head lands, the airbag 26 hits the ground, and the impact force causes the air in the airbag 26 to increase the speed of circulation into the piston cylinder 22, and the air pressure in the airbag 26 decreases, which can unload the impact of the entire charging gun head touching the ground, and prevent a large degree of subsequent ground rebound. When the air bag 26 is re-stored, the air bag 26 is squeezed, and the air inside enters the piston cylinder 22 through the ventilation gap, so that the air bag 26 can be stored in the storage groove of the gun head cover 11 conveniently.

[0039] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. An anti-drag car charging pile, characterized in that: include: Charging pile cabinet (1); A cable (2) extending from the inside of the charging pile cabinet (1) to the outside; A charging gun head, which is electrically connected to a cable (2), comprises a handle (9), a gun head cover (11) arranged at the end of the handle (9), a plug (12) arranged at the end of the gun head cover (11), a locking assembly, a push bar (18) and an ejection device, wherein the locking assembly comprises a pressure plate (131) rotatably arranged in the gun head cover (11), a snap plate (132) snap-connected to the pressure plate (131), a spring b (14) tensioned between the inner surface of the gun head cover (11) and the pressure plate (131), and a sliding arrangement A button (15) is provided on the gun head cover (11) and abuts against the end of the pressure plate (131). The ejection device comprises two sets of symmetrically distributed ejection mechanisms, the ejection mechanisms comprising a moving plate (17), an electric push rod (16) arranged in the gun head cover (11) and driving the moving plate (17) to move linearly, and two push rods (19) symmetrically arranged on the moving plate (17). Two push rods (18) are symmetrically arranged on the moving plate (17). When the push rods (19) extend outward from the gun head cover (11), the push rods (18) release the pressure. The plate (131) and the snap plate (132) are snap-fitted together; one end of the snap plate (132) has an anti-dropping buckle, and the other end has two symmetrically distributed elastic buckles (1321); the outer ends of the elastic buckles (1321) have inclined surfaces; the end of the pressure-bearing plate (131) has a sliding channel (1311) for the two elastic buckles (1321) to extend into, a limiting groove (1312) for the ends of the elastic buckles (1321) to snap into, and a through channel (1313) for the push bar (18) to pass through; the through channel (131 3) The width is smaller than the width of the limiting groove (1312), and when the two push strips (18) move toward the buckle plate (132), the two elastic buckles (1321) are pushed inwardly through the inclined surface so that the ends of the elastic buckles (1321) are moved out from the inside of the limiting groove (1312); when the user uses the charging gun head to charge, the plug (12) of the charging gun head is inserted into the charging socket of the vehicle, and the charging socket has a slot, and the spring b (14) tensions the pressure plate (131), so that the outer end of the buckle plate (132) can be stuck in the slot; A detection and trigger mechanism, which is triggered when it detects that the cable (2) is dragged to a degree exceeding a preset threshold, controls the electric push rod (16) to drive the moving plate (17) to move, and ejects the charging gun head from the vehicle charging socket; Four receiving grooves are evenly arranged in an annular shape on the outer circumference of the gun head cover (11), and a communicating hole is arranged at the bottom of the receiving groove. The gun head cover (11) is provided with an airbag protection component corresponding to the push rod (19) one by one. The airbag protection component includes a piston cylinder (22) arranged in the gun head cover (11), a piston (20) slidably arranged in the piston cylinder (22) and connected to the push rod (19), a connecting cylinder (23) connecting the piston cylinder (22) and the communicating hole, and an airbag (26) sealed and connected to the bottom of the receiving groove and connected to the communicating hole. The push rod (19) passes through the piston cylinder (22) and is sealed and connected to the piston cylinder (22) at the penetration point.

2. The anti-drag car charging pile according to claim 1, characterized in that: The detection and triggering mechanism comprises a central controller, a mounting sleeve (3) sleeved on the cable (2), a pressure sensor (4) arranged on the mounting sleeve (3), a guide cylinder (5) arranged on the charging pile cabinet (1), a sliding rod (6) slidably arranged on the guide cylinder (5), an end plate (7) arranged at the end of the sliding rod (6), and a spring a (8) connected between the guide cylinder (5) and the end plate (7), wherein the spring a (8) is sleeved on the outside of the sliding rod (6), the pressure sensor (4) faces the end plate (7), the pressure sensor is communicatively connected to the central controller, the central controller is control-connected to the electric push rod (16), and the mounting sleeve (3) sliding damping is arranged on the charging pile cabinet (1).

3. The anti-drag car charging pile according to claim 1, characterized in that: A push head (21) is arranged at the end of the push rod (19), and a through hole (111) is provided at the end of the gun head cover (11) for the push head (21) to pass through, and a sealing plug is detachably mounted at the through hole (111).

4. The anti-drag car charging pile according to claim 1, characterized in that: A control valve assembly is arranged in the connecting cylinder (23). The control valve assembly includes a plurality of opening and closing assemblies evenly distributed around the central axis of the connecting cylinder (23). The opening and closing assemblies include a conical inclined plate (24) rotatably arranged in the connecting cylinder (23) and a spring c (25) connected between the inner wall of the connecting cylinder (23) and the conical inclined plate (24). When the piston (20) slides toward the inner side of the piston cylinder (22) and blows air toward the airbag (26) through the connecting cylinder (23), the conical inclined plates (24) in the plurality of opening and closing assemblies are pushed open and the spring c (25) is compressed. When the piston (20) stops moving or moves in the reverse direction, the spring c (25) pushes the conical inclined plates (24), and the plurality of conical inclined plates (24) are closed.

5. The anti-drag car charging pile according to claim 4, characterized in that: After the plurality of conical inclined plates (24) are closed, ventilation gaps are provided between adjacent conical inclined plates (24).

6. The anti-drag car charging pile according to claim 4, characterized in that: An elastic baffle (10) is provided on the handle (9), and the elastic baffle (10) has a plurality of extended plate portions that are evenly distributed around the central axis and extend outwards.

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