New energy automobile charging connection device and use method thereof

Abstract

The invention discloses a new energy automobile charging connection device and a using method thereof, belongs to the technical field of new energy automobile auxiliary power supply, and provides the following scheme that the new energy automobile charging connection device comprises a charging pile body and a charging gun head installed on the side face of the charging pile body through a transmission line, and the charging gun head is provided with a fixing structure and a driving structure; by arranging a fixing structure and a driving structure, when the charging gun head is inserted into the new energy automobile, all suction cups are tightly attached to the outer wall of the new energy automobile, an operator adjusts an electric push rod to extend, a movable disc moves away from the suction cups in a sleeve at the moment, and under the effect of negative pressure in the sleeve, the new energy automobile is charged. According to the new energy vehicle charging gun head fixing device, the suction cup and a new energy vehicle are sucked, fixing treatment of the charging gun head is completed, the firmness of the charging gun head during charging of the new energy vehicle is ensured, the falling risk caused by accidental touch and other factors is avoided, and the safety and efficiency of charging operation are greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of auxiliary power supply for new energy vehicles, and in particular to a charging connection device for a new energy vehicle and a method of using the same. Background Art

[0002] New energy vehicles are powered by the on-board power supply and the wheels are driven by an electric motor, making the vehicles safe, less polluting, and low-cost, and have great development potential. With the development of the industry, new energy vehicles have developed into plug-in, extended-range, hybrid and other forms. These vehicles have also gradually entered ordinary households. Since new energy vehicles are powered by the on-board power supply, charging piles and charging guns are required to charge the vehicles when in use. When charging, just insert the charging gun into the car's charging port; after charging, put the charging gun back into the charging pile.

[0003] For example, the patent number disclosed on the China Patent Network is: CN118306247B, and the patent name is: A new energy vehicle charging connection device, which belongs to the field of auxiliary power supply technology for new energy vehicles, including a concrete base and a charging pile body above the concrete base, a cable box is provided under the charging pile body, a charging cable is provided on the outside of the cable box, a charging gun is provided at the end of the charging cable, and a gun head hole for storing the charging gun is provided on the outside of the charging pile body. A cable length compensation mechanism is also provided in the cable box, and the charging cable achieves length compensation through the cable length compensation mechanism; the new energy vehicle charging connection device can stably support and limit the charging gun, effectively protect the pin structure of the charging gun, and avoid bending or even breaking of the pins. In addition, the length of the charging cable can be compensated according to needs during use, and the compensated cable can also be retracted. The overall structure is stable and easy to operate, which is suitable for popularization and use.

[0004] Traditional new energy vehicle charging connection devices, such as the above patent, still have some problems: 1. When charging new energy vehicles, the existing new energy vehicle charging connection devices mostly directly plug the charging gun into the charging socket inside the new energy vehicle. However, since there is no limit fixing component for the charging gun, in actual use, when the charging gun encounters external force, it is easy to automatically detach from the new energy vehicle. In addition, since the end of the charging gun is relatively protruding and no reinforcement component is set, it is easy to shift when it is hit by the outside world, causing the charging gun and the socket of the new energy vehicle to become loose, and causing poor charging connection during subsequent use.

[0005] 2. Existing charging connection devices generally do not have a shielding and protective structure at the connection between the charging gun and the new energy vehicle. This design defect is particularly prominent under severe weather conditions (such as rainy days and humid environments). When the humidity of the external environment is high, moisture can easily penetrate through the unsealed interface gaps and directly affect the electrical connection between the charging gun and the new energy vehicle. This may not only lead to leakage, but may also cause serious safety accidents such as short circuits and electric shocks due to direct contact between moisture and electrical components, posing certain safety hazards.

[0006] In response to the above problems, the present invention document proposes a new energy vehicle charging connection device and a method of use. Summary of the invention

[0007] The purpose of the present invention is to solve the shortcomings existing in the prior art, and to propose a method for fixing the charging gun head, thereby ensuring the firmness of the charging gun head when charging new energy vehicles, avoiding the risk of falling off due to accidental touch and other factors, and greatly improving the safety and efficiency of the charging operation. New energy vehicle charging connection device.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions: A new energy vehicle charging connection device includes a charging pile body and a charging gun head installed on the side of the charging pile body through a transmission line, the charging gun head is provided with a fixed structure and a driving structure, and the driving structure adjusts the fixed structure, the fixed structure is provided with a limiting structure, the driving structure and the limiting structure are jointly provided with an adjusting structure, the driving structure drives the limiting structure to rotate through the adjusting structure, and the fixed structure and the limiting structure are both provided with a sealing structure.

[0009] The fixed structure includes a mounting cover fixedly connected to the outside of the charging gun head, a plurality of sleeves are fixedly connected to both sides of the mounting cover, a suction cup is installed at the end of the sleeve, a movable disk is slidably connected to the inside of the sleeve, and two adjacent sleeves are connected through a hollow tube. The driving structure includes a driving frame slidably connected to the outside of the charging gun head, an electric push rod is installed on the top of the driving frame, and a plurality of connecting rods are fixedly connected to both sides of the driving frame, and the connecting rods are fixedly connected to the adjacent movable disk.

[0010] Preferably, the connecting rod passes through the adjacent sleeve, and a sealing ring is provided at the connection between the sleeve and the connecting rod, and a sealing gasket is provided on the side of the surface of the movable disk away from the connecting rod.

[0011] Preferably, the limiting structure includes a fixed base fixedly connected to the side of the mounting cover, and two rotating shafts rotatably connected to the inside of the mounting cover, the outer wall of the rotating shaft is fixedly connected to two fixed blocks, and the same flip base is fixedly connected to the two adjacent fixed blocks.

[0012] Preferably, when the flip base rotates with the axis of the rotating shaft as the rotation center, it can fit tightly with the fixed base.

[0013] Preferably, the shape of the end of the mounting cover is set to be a trapezoid, and the side of the mounting cover is provided with a sliding groove for the fixed block to move.

[0014] Preferably, the adjustment structure includes two gears fixedly connected to the outer wall of the rotating shaft, and two connecting plates fixedly connected to both sides of the driving frame respectively, and two tooth plates are fixedly connected to the connecting plates, and the tooth plates are meshed with the adjacent gears.

[0015] Preferably, the shape between the connecting plate and the two tooth plates is set to be a concave shape, and the gear and the tooth plates are both located inside the mounting cover.

[0016] Preferably, the sealing structure includes a first airbag installed inside a fixed base, and a second airbag installed inside a flip base, the first airbag and the second airbag are respectively connected to a second conduit and a first conduit, the sealing structure also includes a distribution box fixedly connected to the top of the mounting cover, the distribution box is interconnected with the second conduit and the two first conduits, and both ends of the distribution box are interconnected with the top of the sleeve adjacent to it through a ventilation pipe.

[0017] Preferably, the shape of the first airbag is set to be a square shape, and the shape of the second airbag is set to be a concave shape.

[0018] The method for using the new energy vehicle charging connection device comprises the following steps: S1. The operator first holds the charging gun head and removes it from the charging pile body, then aligns the charging socket end of the charging gun head with the charging socket position on the surface of the new energy vehicle, so that the charging gun head is plugged into the new energy vehicle. At this time, all the suction cups are tightly fitted with the outer wall of the new energy vehicle. The operator adjusts the electric push rod to extend the electric push rod. When the movable rod of the electric push rod pushes the drive frame to move away from the fixed base, the drive frame drives the movable disk to move through the connecting rod. When the movable disk moves away from the suction cup inside the sleeve, the suction cup and the new energy vehicle are adsorbed under the action of the negative pressure inside the sleeve, completing the fixing of the charging gun head; S2. When the driving frame moves away from the fixed base, the two tooth plates can be driven to move synchronously through the connecting plate, and the tooth plates drive the fixed block and the flip base to rotate through the gears and the rotating shaft, so that the two flip bases rotate to a state of being closely fitted with the fixed base, so that the two flip bases can fit with the outer side of the new energy vehicle; S3. Due to the effect of the hollow tube, all the sleeves on the same side are connected. When the movable disc moves away from the suction cup inside the sleeve, the gas inside the end of the sleeve away from the suction cup enters the distribution box through the vent pipe, and then the distribution box distributes the gas to the second airbag and the first airbag through the first conduit and the second conduit respectively, so that the first airbag and the second airbag are inflated and expanded, so that the first airbag and the second airbag are closely attached to the side of the new energy vehicle; S4. When the charging pile body is supplying power, the electric energy is transmitted to the charging gun head through the transmission line, and then the new energy vehicle is charged through the charging gun head. When the operator uses the charging pile body and the charging gun head to complete the charging process of the new energy vehicle, the electric push rod is adjusted. When the electric push rod is contracted, the driving frame moves close to the fixed base, and the driving frame pushes the movable plate inside the sleeve to move close to the suction cup through the connecting rod, so that the air pressure inside the sleeve returns to normal, so that the suction cup releases the adsorption of the new energy vehicle, and the driving frame drives the gear and the rotating shaft to rotate through the tooth plate, so that the flip base rotates to a vertical state with the fixed base. At this time, the two flip bases are tightly fitted with the mounting cover.

[0019] Compared with the prior art, the present invention provides a new energy vehicle charging connection device, which has the following beneficial effects: 1. The new energy vehicle charging connection device is provided with a fixed structure and a driving structure. When the charging gun head is plugged into the new energy vehicle, all the suction cups are tightly fitted with the outer wall of the new energy vehicle. The operator adjusts the electric push rod to extend it. At this time, the movable disk moves away from the suction cup inside the sleeve. Under the action of the negative pressure inside the sleeve, the suction cup and the new energy vehicle are adsorbed to complete the fixing of the charging gun head, ensuring the firmness of the charging gun head when charging the new energy vehicle, avoiding the risk of falling off due to factors such as accidental touch, and greatly improving the safety and efficiency of the charging operation.

[0020] 2. The new energy vehicle charging connection device is provided with a limit structure and an adjustment structure. When the driving frame moves away from the fixed base, the toothed plate drives the rotating shaft and the fixed block to rotate through the gears, so that the two flip bases rotate to a state of close fit with the fixed base. At this time, the two flip bases can fit with the outside of the new energy vehicle. The flip base in a close fit state not only effectively disperses the lateral pressure that may be generated by the charging gun head during the charging process, but also significantly improves the overall supporting strength and stability by increasing the contact area with the outside of the new energy vehicle. This design not only further consolidates the fixing effect of the charging gun head, but also effectively prevents the loosening or falling off of the charging connection caused by external factors (such as wind, vibration, etc.), thereby further ensuring the safety and reliability of the charging process.

[0021] 3. The charging connection device for new energy vehicles is provided with a sealing structure. Due to the action of the hollow tube, all the sleeves on the same side are connected. When the movable disk moves away from the suction cup inside the sleeve, the gas inside the end of the sleeve away from the suction cup enters the distribution box through the vent pipe, and then the gas is distributed to the second airbag and the first airbag through the first conduit and the second conduit respectively through the distribution box, so that the first airbag and the second airbag are inflated and expanded, tightly and evenly fitting the side of the new energy vehicle, forming an indestructible sealing barrier. This sealing barrier not only effectively isolates the potential damage of external impurities such as rain, dust, etc. to the connection between the charging gun head and the new energy vehicle, but also significantly improves the protection level of the charging interface, ensuring the safety and stability of the charging process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a three-dimensional view of a new energy vehicle charging connection device proposed by the present invention.

[0023] Figure 2 This is a view of the connection structure of the charging gun head, the fixing structure, the limiting structure and the sealing structure of the present invention.

[0024] Figure 3 This is a view of the unfolded structure of the fixed base and the flip base of the present invention.

[0025] Figure 4 It is a cross-sectional view of the mounting cover of the present invention.

[0026] Figure 5 It is a view of the fixing structure, sealing structure and driving frame connection structure of the present invention.

[0027] Figure 6 This is a view of the connection structure of the electric push rod, drive frame, adjustment structure and limit structure of the present invention.

[0028] Figure 7It is a cross-sectional view of the sleeve and suction cup connection structure of the present invention.

[0029] Figure 8 It is a view of the connection structure of the first airbag, the second airbag, the first conduit, the second conduit and the distribution box of the present invention.

[0030] In the figure: 1. Charging pile body; 2. Transmission line; 3. Charging gun head; 4. Fixed structure; 401. Mounting cover; 402. Sleeve; 403. Suction cup; 404. Movable disk; 405. Ventilation pipe; 5. Driving structure; 501. Electric push rod; 502. Driving frame; 503. Connecting rod; 6. Limiting structure; 601. Fixed base; 602. Flip base; 603. Fixed block; 604. Rotating shaft; 7. Adjusting structure; 701. Gear; 702. Tooth plate; 703. Connecting plate; 8. Sealing structure; 801. First airbag; 802. Second airbag; 803. Distribution box; 804. First conduit; 805. Second conduit. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] Example 1: Reference Figure 1-Figure 7 A new energy vehicle charging connection device includes a charging pile body 1, and a charging gun head 3 installed on the side of the charging pile body 1 through a transmission line 2, a fixing structure 4 and a driving structure 5 are provided on the charging gun head 3, and the driving structure 5 adjusts the fixing structure 4, a limiting structure 6 is provided on the fixing structure 4, and an adjusting structure 7 is provided on the driving structure 5 and the limiting structure 6 together, and the driving structure 5 drives the limiting structure 6 to rotate through the adjusting structure 7, and a sealing structure 8 is provided on both the fixing structure 4 and the limiting structure 6.

[0034] The fixed structure 4 includes a mounting cover 401 fixedly connected to the outside of the charging gun head 3, a plurality of sleeves 402 are fixedly connected to both sides of the mounting cover 401, a suction cup 403 is installed at the end of the sleeve 402, a movable disk 404 is slidably connected inside the sleeve 402, and two adjacent sleeves 402 are connected through a hollow tube. The driving structure 5 includes a driving frame 502 slidably connected to the outside of the charging gun head 3, an electric push rod 501 is installed on the top of the driving frame 502, and a plurality of connecting rods 503 are fixedly connected to both sides of the driving frame 502, and the connecting rods 503 are fixedly connected to the nearby movable disk 404.

[0035] In the present invention, the connecting rod 503 passes through the adjacent sleeve 402, and a sealing ring is provided at the connection between the sleeve 402 and the connecting rod 503, and a sealing gasket is provided on the side of the surface of the movable disk 404 away from the connecting rod 503. By providing a sealing ring at the connection between the sleeve 402 and the connecting rod 503, and providing a sealing gasket on the side of the surface of the movable disk 404 away from the connecting rod 503, it is ensured that when the movable disk 404 moves in the sleeve 402, good sealing is still guaranteed, so that the suction cup 403 can be adsorbed on the side of the new energy vehicle, and the first airbag 801 and the second airbag 802 can be inflated and expanded, so as to fit tightly and evenly to the side of the new energy vehicle, forming an indestructible sealing barrier. This sealing barrier not only effectively isolates the potential damage of external impurities such as rainwater, dust, etc. to the connection between the charging gun head 3 and the new energy vehicle.

[0036] In the present invention, the limiting structure 6 includes a fixed base 601 fixedly connected to the side of the mounting cover 401, and two rotating shafts 604 rotatably connected to the inside of the mounting cover 401, the outer wall of the rotating shaft 604 is fixedly connected to two fixed blocks 603, and the same flip base 602 is fixedly connected to the two adjacent fixed blocks 603, and when the flip base 602 rotates with the axis of the rotating shaft 604 as the rotation center, it can fit tightly with the fixed base 601, the shape of the end of the mounting cover 401 is set to be trapezoidal, and the side of the mounting cover 401 is provided with a slide groove for the fixed block 603 to move, by setting the limiting structure 6 and the adjustment structure 7, when the driving frame 502 moves away from the fixed base 601, the toothed plate 702 drives the rotating shaft 604 and the fixed block 603 to rotate through the gear 701, so that the two flip bases 602 rotate to fit tightly with the fixed base 601 state, at this time, the two flip bases 602 can fit with the outside of the new energy vehicle. The flip base 602 in a tightly fitted state not only effectively disperses the lateral pressure that may be generated by the charging gun head 3 during the charging process, but also significantly improves the overall supporting strength and stability by increasing the contact area with the outside of the new energy vehicle. This design not only further consolidates the fixing effect of the charging gun head 3, but also effectively prevents the loosening or falling off of the charging connection caused by external factors, thereby further ensuring the safety and reliability of the charging process. By setting the flip base 602 to a flippable design, when the operator plugs the charging gun head 3 into the new energy vehicle, the flip base 602 is in a vertical state with the fixed base 601, avoiding the flip base 602 from obstructing the operator's line of sight, thereby facilitating the operator to quickly complete the connection between the charging gun head 3 and the new energy vehicle.

[0037] In the present invention, the adjustment structure 7 includes two gears 701 fixedly connected to the outer wall of the rotating shaft 604, and two connecting plates 703 fixedly connected to the two sides of the driving frame 502 respectively. Two tooth plates 702 are fixedly connected to the connecting plate 703, and the tooth plates 702 are meshed with the adjacent gears 701. The shape between the connecting plate 703 and the two tooth plates 702 is set to be a concave shape. The gears 701 and the tooth plates 702 are both located inside the mounting cover 401. By setting the gears 701 and the tooth plates 702, when the driving frame 502 moves, with the cooperation of the gears 701 and the tooth plates 702, the fixed base 601 and the flip base 602 can be flipped, unfolded or folded. Under the linkage effect, the convenience of use of the device is improved.

[0038] Example 2: Reference Figure 1-Figure 8A new energy vehicle charging connection device includes a charging pile body 1, and a charging gun head 3 installed on the side of the charging pile body 1 through a transmission line 2, a fixing structure 4 and a driving structure 5 are provided on the charging gun head 3, and the driving structure 5 adjusts the fixing structure 4, a limiting structure 6 is provided on the fixing structure 4, and an adjusting structure 7 is provided on the driving structure 5 and the limiting structure 6 together, and the driving structure 5 drives the limiting structure 6 to rotate through the adjusting structure 7, and a sealing structure 8 is provided on both the fixing structure 4 and the limiting structure 6.

[0039] The fixed structure 4 includes a mounting cover 401 fixedly connected to the outside of the charging gun head 3, a plurality of sleeves 402 are fixedly connected to both sides of the mounting cover 401, a suction cup 403 is installed at the end of the sleeve 402, a movable disk 404 is slidably connected inside the sleeve 402, and two adjacent sleeves 402 are connected through a hollow tube. The driving structure 5 includes a driving frame 502 slidably connected to the outside of the charging gun head 3, an electric push rod 501 is installed on the top of the driving frame 502, and a plurality of connecting rods 503 are fixedly connected to both sides of the driving frame 502, and the connecting rods 503 are fixedly connected to the nearby movable disk 404.

[0040] In the present invention, the sealing structure 8 includes a first airbag 801 installed inside the fixed base 601, and a second airbag 802 installed inside the flip base 602. The first airbag 801 and the second airbag 802 are respectively connected to the second conduit 805 and the first conduit 804. The sealing structure 8 also includes a distribution box 803 fixedly connected to the top of the mounting cover 401. The distribution box 803 is interconnected with the second conduit 805 and the two first conduits 804. Both ends of the distribution box 803 are interconnected with the top of the adjacent sleeve 402 through the ventilation pipe 405. The shape of the first airbag 801 is set to be a mouth shape, and the shape of the second airbag 802 is set to be a concave shape. By setting the sealing structure 8, due to the action of the hollow tube, all sleeves 402 on the same side are connected. When the movable disk 404 moves away from the suction cup 403 inside the sleeve 402, the gas inside the end of the sleeve 402 away from the suction cup 403 enters the distribution box 803 through the vent pipe 405, and then the gas is distributed to the second airbag 802 and the first airbag 801 through the first conduit 804 and the second conduit 805 respectively through the distribution box 803, so that the first airbag 801 and the second airbag 802 are inflated and expanded, tightly and evenly fitting the side of the new energy vehicle, forming an indestructible sealing barrier. This sealing barrier not only effectively isolates the potential damage of external impurities such as rainwater, dust, etc. to the connection between the charging gun head 3 and the new energy vehicle, but also significantly improves the protection level of the charging interface, ensuring the safety and stability of the charging process.

[0041] Working principle: the operator first holds the charging gun head 3, removes the charging gun head 3 from the charging pile body 1, and then aligns the charging socket end of the charging gun head 3 with the charging socket position on the surface of the new energy vehicle, so that the charging gun head 3 is plugged into the new energy vehicle. At this time, all the suction cups 403 are tightly fitted with the outer wall of the new energy vehicle. The operator adjusts the electric push rod 501 to extend the electric push rod 501. When the movable rod of the electric push rod 501 pushes the driving frame 502 to move away from the fixed base 601, the driving frame 502 drives the movable disk 404 to move through the connecting rod 503. When the movable disk 404 moves away from the suction cup 403 inside the sleeve 402, under the action of the negative pressure inside the sleeve 402, the suction cup 403 is adsorbed on the new energy vehicle to complete the fixing of the charging gun head 3.

[0042] When the driving frame 502 moves away from the fixed base 601, the two tooth plates 702 can be synchronously driven to move through the connecting plate 703. The tooth plates 702 drive the fixed block 603 and the flip base 602 to rotate through the gear 701 and the rotating shaft 604, so that the two flip bases 602 rotate to a state of being tightly fitted with the fixed base 601, so that the two flip bases 602 can fit with the outside of the new energy vehicle.

[0043] Due to the action of the hollow tube, all the sleeves 402 on the same side are connected. When the movable disk 404 moves away from the suction cup 403 inside the sleeve 402, the gas inside the end of the sleeve 402 away from the suction cup 403 enters the distribution box 803 through the ventilation pipe 405, and then the distribution box 803 distributes the gas to the second airbag 802 and the first airbag 801 through the first conduit 804 and the second conduit 805 respectively, so that the first airbag 801 and the second airbag 802 are inflated and expanded, so that the first airbag 801 and the second airbag 802 are tightly fitted to the side of the new energy vehicle.

[0044] When the charging pile body 1 is powered, the electric energy is transmitted to the charging gun head 3 through the transmission line 2, and then the new energy vehicle is charged through the charging gun head 3. When the operator uses the charging pile body 1 and the charging gun head 3 to complete the charging process of the new energy vehicle, the electric push rod 501 is adjusted. When the electric push rod 501 is contracted, the driving frame 502 moves close to the fixed base 601, and the driving frame 502 pushes the movable disk 404 inside the sleeve 402 through the connecting rod 503 to move close to the suction cup 403, so that the air pressure inside the sleeve 402 returns to normal, so that the suction cup 403 is released from the adsorption of the new energy vehicle, and the driving frame 502 drives the gear 701 and the rotating shaft 604 to rotate through the tooth plate 702, so that the flip base 602 rotates to a vertical state with the fixed base 601. At this time, the two flip bases 602 are tightly fitted with the mounting cover 401.

[0045] The above are only preferred specific implementation modes 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 solutions and inventive concepts 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 new energy vehicle charging connection device, comprising a charging pile body (1), and a charging gun head (3) installed on the side of the charging pile body (1) through a transmission line (2), characterized in that: The charging gun head (3) is provided with a fixing structure (4) and a driving structure (5), and the driving structure (5) adjusts the fixing structure (4); a limiting structure (6) is provided on the fixing structure (4); an adjusting structure (7) is provided on the driving structure (5) and the limiting structure (6); the driving structure (5) drives the limiting structure (6) to rotate via the adjusting structure (7); and a sealing structure (8) is provided on both the fixing structure (4) and the limiting structure (6); The fixing structure (4) comprises a mounting cover (401) fixedly connected to the outside of the charging gun head (3), a plurality of sleeves (402) are fixedly connected to both sides of the inside of the mounting cover (401), a suction cup (403) is installed at the end of the sleeve (402), a movable disk (404) is slidably connected to the inside of the sleeve (402), and two adjacent sleeves (402) are connected via a hollow tube, and the driving structure (5) comprises a driving frame (502) slidably connected to the outside of the charging gun head (3), an electric push rod (501) is installed on the top of the driving frame (502), and a plurality of connecting rods (503) are fixedly connected to both sides of the driving frame (502), and the connecting rods (503) are fixedly connected to the adjacent movable disk (404).

2. A new energy vehicle charging connection device according to claim 1, characterized in that: The connecting rod (503) passes through the adjacent sleeve (402), and a sealing ring is provided at the connection between the sleeve (402) and the connecting rod (503), and a sealing pad is provided on the side of the surface of the movable disk (404) away from the connecting rod (503).

3. A new energy vehicle charging connection device according to claim 2, characterized in that: The limiting structure (6) comprises a fixed base (601) fixedly connected to the side of the mounting cover (401), and two rotating shafts (604) rotatably connected to the inside of the mounting cover (401), the outer wall of the rotating shaft (604) being fixedly connected to two fixed blocks (603), and the same flip base (602) being fixedly connected to the two adjacent fixed blocks (603).

4. A new energy vehicle charging connection device according to claim 3, characterized in that: When the flip base (602) rotates with the axis of the rotating shaft (604) as the rotation center, it can fit tightly with the fixed base (601).

5. A new energy vehicle charging connection device according to claim 4, characterized in that: The shape of the end of the mounting cover (401) is set to be a trapezoid, and a sliding groove for the fixed block (603) to move is provided on the side of the mounting cover (401).

6. A new energy vehicle charging connection device according to claim 5, characterized in that: The adjustment structure (7) comprises two gears (701) fixedly connected to the outer wall of the rotating shaft (604), and two connecting plates (703) respectively fixedly connected to the two sides of the driving frame (502), and two tooth plates (702) are fixedly connected to the connecting plates (703), and the tooth plates (702) are meshed with the adjacent gears (701).

7. A new energy vehicle charging connection device according to claim 6, characterized in that: The shape between the connecting plate (703) and the two tooth plates (702) is set to be a concave shape, and the gear (701) and the tooth plates (702) are both located inside the mounting cover (401).

8. A new energy vehicle charging connection device according to claim 7, characterized in that: The sealing structure (8) comprises a first airbag (801) installed inside a fixed base (601), and a second airbag (802) installed inside a flip base (602), the first airbag (801) and the second airbag (802) being connected to a second conduit (805) and a first conduit (804) respectively. The sealing structure (8) further comprises a distribution box (803) fixedly connected to the top of the mounting cover (401), the distribution box (803) being interconnected with the second conduit (805) and the two first conduits (804), and both ends of the distribution box (803) being interconnected with the top of the adjacent sleeve (402) via a vent pipe (405).

9. A new energy vehicle charging connection device according to claim 8, characterized in that: The shape of the first airbag (801) is set to be a U-shape, and the shape of the second airbag (802) is set to be a C-shape.

10. A method for using a new energy vehicle charging connection device, applicable to the new energy vehicle charging connection device as claimed in claim 9, characterized in that: The following steps are involved: S1. The operator first holds the charging gun head (3) and removes the charging gun head (3) from the charging pile body (1). Then, the charging socket end of the charging gun head (3) is aligned with the charging socket position on the surface of the new energy vehicle, so that the charging gun head (3) is plugged into the new energy vehicle. At this time, all the suction cups (403) are tightly fitted with the outer wall of the new energy vehicle. The operator adjusts the electric push rod (501) so that the electric push rod (501) is extended. When the movable rod of the electric push rod (501) pushes the driving frame (502) to move away from the fixed base (601), the driving frame (502) drives the movable disk (404) to move through the connecting rod (503). When the movable disk (404) moves away from the suction cup (403) inside the sleeve (402), under the action of the negative pressure inside the sleeve (402), the suction cup (403) and the new energy vehicle are adsorbed, thereby completing the fixing process of the charging gun head (3); S2. When the driving frame (502) moves away from the fixed base (601), the two tooth plates (702) can be synchronously driven to move through the connecting plate (703), and the tooth plates (702) drive the fixed block (603) and the flip base (602) to rotate through the gear (701) and the rotating shaft (604), so that the two flip bases (602) rotate to a state of being closely fitted with the fixed base (601), so that the two flip bases (602) can be fitted with the outer side of the new energy vehicle; S3. Due to the effect of the hollow tube, all the sleeves (402) on the same side are connected. When the movable disc (404) moves away from the suction cup (403) inside the sleeve (402), the gas inside the end of the sleeve (402) away from the suction cup (403) enters the distribution box (803) through the vent pipe (405), and then the distribution box (803) distributes the gas to the second airbag (802) and the first airbag (801) through the first conduit (804) and the second conduit (805), respectively, so that the first airbag (801) and the second airbag (802) are inflated and expanded, so that the first airbag (801) and the second airbag (802) are closely attached to the side of the new energy vehicle; S4. When the charging pile body (1) is supplying power, the electric energy is transmitted to the charging gun head (3) through the transmission line (2), and then the new energy vehicle is charged through the charging gun head (3). When the operator uses the charging pile body (1) and the charging gun head (3) to complete the charging process of the new energy vehicle, the operator adjusts the electric push rod (501). When the electric push rod (501) is retracted, the driving frame (502) moves closer to the fixed base (601), and the driving frame (502) pushes the movable frame (502) through the connecting rod (503). The disc (404) moves inside the sleeve (402) toward the suction cup (403), so that the air pressure inside the sleeve (402) returns to normal, thereby releasing the suction cup (403) from adsorption to the new energy vehicle, and the drive frame (502) drives the gear (701) and the rotating shaft (604) to rotate through the tooth plate (702), so that the flip base (602) rotates to a vertical state with respect to the fixed base (601), and at this time, the two flip bases (602) are tightly fitted with the mounting cover (401).

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