A centralized fast charging station for new energy vehicles

Abstract

The application belongs to the technical field of new energy automobile charging facilities, and discloses a centralized quick charging station for new energy automobiles, which comprises a base serving as the base of the charging station, a protection frame fixedly installed above the base, a charging pile fixedly installed above the base, two charging guns respectively connected to the outer side of the charging pile through cables, and a placing cavity fixedly installed inside the charging pile; and the cable recovery assembly comprises a supporting plate, a driving wheel, a first driving mechanism, a second driving mechanism, a third driving mechanism, a counterweight structure and a heat dissipation structure, so that the driving wheel and the cable contact part are periodically and automatically replaced, the problems of permanent indentation, material fatigue and internal wire metal fatigue of the cable sheath caused by traditional fixed-point clamping are avoided, the wear and stress of the cable are evenly distributed on the entire circumference, and the service life of the cable is extended by several times.

Description

Technical Field

[0001] This invention belongs to the technical field of new energy vehicle charging facilities, and in particular relates to a centralized fast charging station for new energy vehicles. Background Technology

[0002] With the rapid development of the new energy vehicle industry, higher requirements have been placed on the scale and efficiency of supporting charging infrastructure. Centralized fast charging stations (or charging hubs) have become key facilities for alleviating range anxiety and improving energy replenishment efficiency because they can provide high-power DC fast charging services for multiple electric vehicles at the same time.

[0003] Although some advanced charging piles use automatic winding mechanisms, which use clamping wheels or drums in fixed positions to continuously and single-point squeeze and bend the cable, the cable itself heats up during high-power charging. In addition, the long-term fixed mechanical stress can easily cause permanent indentations in the local sheath material of the cable, accelerate aging, and even cause metal fatigue of the internal conductors, resulting in increased resistance, overheating of contact points and other hidden dangers, which seriously threaten charging safety. Summary of the Invention

[0004] This invention addresses the problem in existing technologies that use fixed-position clamping wheels or drums to continuously and singly compress and bend cables at a single point. During high-power charging, the cables themselves heat up, and the long-term fixed mechanical stress easily leads to permanent indentations in the cable sheath material, accelerated aging, and even metal fatigue of the internal conductors, causing increased resistance, overheating at contact points, and other hidden dangers that seriously threaten charging safety. The invention proposes the following technical solution:

[0005] A centralized fast charging station for new energy vehicles includes: a base, serving as the foundation of the charging station;

[0006] The protective frame is fixedly installed above the base to block sunlight.

[0007] The charging pile is fixedly installed on the base and located below the protective frame; there are two charging guns, which are connected to the outside of the charging pile by cables and are used to charge new energy vehicles.

[0008] Two placement chambers are provided, which are fixedly installed inside the charging pile;

[0009] The cable recycling assembly includes: a support plate, a drive wheel, a first drive mechanism, a second drive structure, a third drive structure, a counterweight structure, and a heat dissipation structure;

[0010] Support plates are located inside the charging gun, and there are two of them.

[0011] The drive wheel is rotatably connected to the underside of the support plate;

[0012] The first drive mechanism is connected above the support plate and is used to drive two drive wheels to rotate in opposite directions, forming a clamping channel between the two drive wheels for clamping and conveying cables.

[0013] The third drive structure is fixedly mounted on the support plate and is used to drive the two drive wheels to move closer to or further apart from each other.

[0014] The second drive structure is located on the inner wall of the charging pile and is used to drive the drive wheel to rotate around the outside of the cable when the cable is released, so as to change the contact point between the drive wheel and the cable.

[0015] The counterweight structure, connected to the second drive structure, is used to increase the fit with the cable, change the bending area of ​​the cable, and increase its weight.

[0016] The heat dissipation structure is located at the bottom of the counterweight structure.

[0017] As a preferred embodiment of the above technical solution, the third driving structure includes a telescopic component, and the number of the telescopic components is set to four. Two telescopic components form a group, and both groups of telescopic components are embedded and installed on the opposite surfaces of the two support plates. The same fixing strip is sleeved between the two groups of telescopic components.

[0018] As a preferred embodiment of the above technical solution, the first driving mechanism includes a rotating shaft, which is rotatably connected to the inside of the support plate. The bottom end of the rotating shaft and the inside of the driving wheel are connected by a key. Gears are connected to the outer surfaces of both rotating shafts by keys. A guide block is rotatably connected to the top of one of the gears. A sprocket structure is fixedly installed on the top of the guide block. A driving component is fixedly installed on the top of the sprocket structure.

[0019] As a preferred embodiment of the above technical solution, the sprocket structure is composed of a protective cover, two sprockets, and a chain. The drive shaft of the drive component passes through the protective cover, the sprockets, and the guide block, and is connected to the rotating shaft by a key. The drive shaft of the drive component is connected to the sprocket located below the drive component by a key. A support plate is snapped onto the bottom end of the protective cover of the sprocket structure, and a winding wheel is installed at the top end of the sprocket structure. The winding wheel is connected to the inside of the sprocket located above the support plate by a key, and the bottom end of the winding wheel and the top end of the protective cover of the sprocket structure are in close contact with each other.

[0020] As a preferred embodiment of the above technical solution, the second drive structure includes a support bar, which is fixedly installed on the inner wall of the charging pile. A telescopic component two is fixedly installed inside the support bar. A rack is snapped onto the output end of the telescopic component two. A gear two is meshed with the top of the outer surface of the rack. The gear two and the opposite surfaces of the fixed bar are welded together.

[0021] As a preferred embodiment of the above technical solution, the second gear is rotatably connected to the inner wall of the charging pile, a circular hole is opened in the middle of the second gear, the cable is located inside the circular hole, a guide groove is opened on one end face of the second gear, and the guide block is slidably connected to the inside of the second gear through the guide groove.

[0022] As a preferred embodiment of the above technical solution, the counterweight structure includes a steel wire rope, one end of which is connected to a winding reel. A limiting block is sleeved on the outside of the steel wire rope, and the bottom end of the limiting block is fixedly connected to the top end of the placement cavity. The end of the steel wire rope away from the winding reel is connected to a counterweight block. The placement cavity is symmetrically provided with sliding grooves, and the counterweight block is slidably connected to the inside of the placement cavity through the sliding grooves.

[0023] As a preferred embodiment of the above technical solution, a touch switch is embedded inside the placement cavity, ventilation holes are equidistantly provided at the bottom of the placement cavity, and the heat dissipation structure is fixedly installed at the bottom of the placement cavity.

[0024] As a preferred embodiment of the above technical solution, a rubber sleeve is fitted onto the outer side of the drive wheel, and the outer side of the rubber sleeve is provided with a wavy pattern.

[0025] The beneficial effects of this invention are as follows:

[0026] (1) Through the coordinated work of the third drive structure and the second drive structure, the periodic automatic replacement of the contact part between the drive wheel and the cable is realized, avoiding the problems of permanent indentation of the cable sheath, material fatigue and internal wire metal fatigue caused by traditional fixed point clamping, so that the wear and stress of the cable can be evenly distributed on the entire circumference, thereby extending the service life of the cable by several times.

[0027] (2) The automated cable recycling and sorting function eliminates the need for users to drag and sort heavy high-power cables, greatly improving the user experience. The counterweight design allows the cables to be quickly and neatly stored in the storage compartment, avoiding the situation of cables being piled up messily on the ground, making the charging station more tidy and beautiful.

[0028] (3) During the static stage after the cable is recycled, the heat dissipation system is automatically started and the tightly coiled cable is directionally forced to be cooled from bottom to top, which efficiently removes the accumulated heat. This ensures that the cable can be fully cooled before the next use and is always in the optimal operating temperature range, effectively preventing the charging power reduction (derating) caused by overheating, ensuring the continuity and efficiency of the subsequent service of the charging station, and improving the charging efficiency per unit time.

[0029] (4) It eliminates serious safety hazards such as increased resistance, overheating of contact points, electric arcs or even short circuits caused by local damage to the cable. The uniform contact pressure and the cable state without permanent deformation ensure the continuous stability of the electrical connection. At the same time, the falling of the counterweight ensures the orderly and tight cable recycling, avoiding accidental pulling and damage caused by messy stacking, and fully ensuring the safe and reliable operation of the high-power charging process. Attached Figure Description

[0030] Figure 1 The diagram shown is a structural schematic of a centralized fast charging station for new energy vehicles according to Embodiment 1;

[0031] Figure 2 The image shown is a front view of a centralized fast charging station for new energy vehicles according to Embodiment 1;

[0032] Figure 3 The diagram shown is a schematic of the installation structure of the support bar in Embodiment 1;

[0033] Figure 4 The diagram shown is a cross-sectional view of the placement cavity in Embodiment 1;

[0034] Figure 5 The diagram shown is a schematic diagram of the installation structure of gear one in embodiment 1;

[0035] Figure 6 The diagram shown is a schematic diagram of the installation structure of the telescopic component 1 in Embodiment 1;

[0036] Figure 7 The image shown is a physical diagram of a centralized fast charging station for new energy vehicles according to Embodiment 1.

[0037] In the diagram: 1. Base; 2. Protective frame; 3. Charging pile; 4. Charging gun; 51. Fixing strip; 52. Telescopic component one; 53. Support plate; 54. Rotating shaft; 55. Drive wheel; 56. Gear one; 57. Guide block; 58. Sprocket structure; 59. Drive component; 510. Support plate; 511. Rewinding wheel; 61. Support strip; 62. Telescopic component two; 63. Rack; 64. Gear two; 71. Wire rope; 72. Limiting block; 73. Placement cavity; 74. Counterweight; 75. Touch switch; 76. Heat dissipation structure. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0039] Example 1

[0040] This invention provides a centralized fast charging station for new energy vehicles, such as... Figures 1 to 7As shown, a centralized fast charging station for new energy vehicles includes: a base 1, a protective frame 2, a charging pile 3, a charging gun 4, a placement cavity 73, and a cable recycling assembly; the base 1 serves as the base of the charging station; the protective frame 2 is fixedly installed above the base 1 to block sunlight; the charging pile 3 is fixedly installed above the base 1 and below the protective frame 2; two charging guns 4 are provided, each connected to the outside of the charging pile 3 via cables, for charging new energy vehicles; two placement cavities 73 are provided, fixedly installed inside the charging pile 3; the cable recycling assembly includes: a support plate 53, a drive wheel 55, a first drive mechanism, a second drive structure, a third drive structure, a counterweight structure, and a heat dissipation structure 76; the support plate 53 is located on the charging pile 3. Inside the electric gun 4, there are two drive wheels 55 rotatably connected to the lower part of the support plate 53; the first drive mechanism is connected to the upper part of the support plate 53 to drive the two drive wheels 55 to rotate in opposite directions, forming a clamping channel between the two drive wheels 55 for clamping and conveying the cable; the third drive structure is fixedly installed on the support plate 53 to drive the two drive wheels 55 to move closer to each other / away from each other; the second drive structure is located on the inner wall of the charging pile 3 to drive the drive wheels 55 to rotate around the outside of the cable when the cable is released, so as to change its contact point with the cable; the counterweight structure is connected to the second drive structure to increase the contact with the cable, change the bending area of ​​the cable and increase its weight; the heat dissipation structure 76 is located at the bottom of the counterweight structure.

[0041] Because the existing fixed clamping wheels or drums continuously and singly squeeze and bend the cable at one point, the cable itself heats up during high-power charging. In addition, the mechanical stress caused by long-term fixation can easily lead to permanent indentations in the local sheath material of the cable, accelerate aging, and even cause metal fatigue of the internal conductors, resulting in hidden dangers such as increased resistance and overheating of contact points, which seriously threatens charging safety.

[0042] To address this, a cable recycling assembly was designed. Through the coordinated operation of the third and second drive structures, the periodic automatic replacement of the contact points between the drive wheel and the cable is achieved. This avoids problems such as permanent indentations on the cable sheath, material fatigue, and internal conductor metal fatigue caused by traditional fixed-point clamping. As a result, the wear and stress of the cable are evenly distributed throughout the circumference, thereby extending the service life of the cable several times and significantly reducing the high replacement costs and maintenance downtime caused by cable damage.

[0043] In use, the charging gun 4 is installed between the charging pile 3 and the two driving wheels 55 rotate relative to each other under the action of the first driving mechanism. When the driving wheels 55 rotate relative to each other, the cable connected to the charging gun 4 is retracted, which reduces the footprint and prevents trampling. At the same time, the retracted cable enters the placement cavity 73 through the counterweight structure. Then the heat dissipation structure 76 is activated. At this time, the heat dissipation structure 76 drives the gas to flow along the outside of the cable, accelerating the heat dissipation of the cable. During the cable release process, the first driving mechanism can be reversed.

[0044] After the cable has been stretched for one cycle, the third drive structure drives the two drive wheels 55 to separate. Then, under the action of the first drive mechanism, the second drive structure and the drive wheels 55 rotate circumferentially around the outside of the cable. Then, the third drive structure is activated. When the third drive structure is running, it drives the drive wheels 55 to move closer to each other, thereby clamping the cable at different positions on the outside. Then, the first drive mechanism is activated.

[0045] To achieve the goal of driving the rotation of the first driving structure in the above example, so that the first driving structure is located at different positions on the outer circumference of the cable, the following solution is provided: Figure 4 and Figure 5 As shown, the second drive structure includes a support bar 61, which is fixedly installed on the inner wall of the charging pile 3. A telescopic component 62 (specifically an electric telescopic rod) is fixedly installed inside the support bar 61. A rack 63 is snapped onto the output end of the telescopic component 62. A gear 64 is meshed on the top of the outer surface of the rack 63. The gear 64 and the fixed bar 51 are welded together.

[0046] When telescopic component 2 62 is connected to the power supply and starts to run, the telescopic component 2 62 drives the rack 63 to move at the top of the support bar 61. At this time, the support bar 61 supports the rack 63, increasing the support force at the bottom of the rack 63. When the rack 63 moves, it drives the gear 2 64 to rotate through the meshing relationship. When the gear 2 64 rotates, it drives the fixed bar 51 to rotate.

[0047] Furthermore, in order to make gear 2 64 rotate around the outside of the cable, thereby causing the fixing bar 51 to drive the guide wheel 55 to rotate circumferentially along the outside of the cable, the following solution is provided: gear 2 64 is rotatably connected to the inner wall of the charging pile 3, and a circular hole is opened in the middle of gear 2 64, with the cable located inside the circular hole.

[0048] To achieve the separation / approaching of the two support plates 53 in the above example, thereby enabling the two support plates 53 to drive the drive wheel 55 to clamp or release the cable, the following solution is provided: Figure 6As shown, the third drive structure includes a telescopic component 52 (the telescopic component 52 specifically belongs to an electric telescopic rod). The number of telescopic components 52 is set to four. Two telescopic components 52 form a group. Both groups of telescopic components 52 are embedded and installed on the opposite surfaces of the two support plates 53. The same fixing strip 51 is sleeved between the two groups of telescopic components 52.

[0049] When in use, the telescopic component 52 operates, which drives the support plate 53 to move, causing the two support plates 53 to move closer or further apart. At the same time, since the drive wheel 55 is connected to the bottom of the support plate 53, when the two support plates 53 move closer or further apart, the two drive wheels 55 move closer or further apart, thereby clamping or releasing the cable.

[0050] To achieve the goal of making the two drive wheels 55 rotate relative to each other in the above example, thereby moving the cable through clamping force and driving force, the following solution is provided: Figure 3 , Figure 4 and Figure 5 As shown, the first drive mechanism includes a rotating shaft 54, which is rotatably connected to the inside of a support plate 53. Damping is provided at the contact point between the rotating shaft 54 ​​and the support plate 53 to prevent the rotating shaft 54 ​​from rotating on its own. The bottom end of the rotating shaft 54 ​​is connected to the inside of the drive wheel 55 via a key. Gears 56 are connected to the outer surfaces of both rotating shafts 54 via keys, and the two gears 56 mesh with each other. A guide block 57 is rotatably connected to the top of one of the gears 56. A sprocket structure 58 is fixedly mounted on the top of the guide block 57, and a drive component 59 (specifically a drive motor) is fixedly mounted on the top of the sprocket structure 58. The guide block 57 supports and fixes the drive component 59 and the sprocket structure 58. The sprocket structure 58 is composed of a protective cover, two sprockets, and a chain. The top of the guide block 57 is fixedly connected to the bottom of the protective cover in the sprocket structure 58. The drive member 59 is fixedly connected to the top of the protective cover in the sprocket structure 58 by screws. The drive shaft of the drive member 59 passes through the protective cover, the sprocket, and the guide block 57 and is connected to the rotating shaft 54 ​​by a key. The drive shaft of the drive member 59 is connected to the sprocket located below the drive member 59 by a key. A support plate 510 is snapped onto the bottom of the protective cover of the sprocket structure 58. The support plate 510 is fixedly installed below the sprocket away from the output shaft of the drive member 59. A take-up wheel 511 is installed on the top of the sprocket structure 58. The take-up wheel 511 is connected to the inside of the sprocket located above the support plate 510 by a key. The bottom of the take-up wheel 511 and the top of the protective cover of the sprocket structure 58 fit together.

[0051] When in use, the drive unit 59 is connected to the power supply and starts running. When the drive unit 59 runs, it drives the two sprockets and the chain inside the sprocket structure 58 to run. At this time, the two sprockets rotate synchronously, thereby driving the winding wheel 511 to rotate.

[0052] At the same time, it drives gear 56 to rotate. When gear 56 rotates, it drives another gear 56 to rotate synchronously. When the two gears 56 rotate synchronously relative to each other, they drive the drive wheel 55 to rotate through the action of the rotating shaft 54.

[0053] Furthermore, in order to reduce the wear of the drive wheel 55 on the outside of the cable and to increase the friction between the drive wheel 55 and the cable, the following solution is provided: a rubber sleeve is fitted on the outside of the drive wheel 55, and the rubber sleeve has a wavy pattern on the outside.

[0054] The rigid contact between the drive wheel 55 and the outside of the cable is reduced by the rubber sleeve, and the friction between the rubber sleeve and the cable is increased by the corrugated pattern, which makes it easier to drive the cable to move.

[0055] Furthermore, to facilitate the movement of the guide block 57 along the interior of the second gear 64, the following solution is provided: a guide groove is provided on one end face of the second gear 64, and the guide block 57 is slidably connected to the interior of the second gear 64 through the guide groove.

[0056] To achieve the stretching and lowering of the two counterweights 74 in the above example, the following solution is provided: Figure 3 and Figure 4 As shown, the counterweight structure includes a steel wire rope 71, one end of which is connected to a winding reel 511. A limiting block 72 is sleeved on the outside of the steel wire rope 71. The bottom end of the limiting block 72 is fixedly connected to the top end of the placement cavity 73. A counterweight block 74 is connected to the end of the steel wire rope 71 away from the winding reel 511. Sliding grooves are symmetrically opened inside the placement cavity 73, and the counterweight block 74 is slidably connected to the inside of the placement cavity 73 through the sliding grooves.

[0057] In use, when the take-up reel 511 unwinds, the counterweight 74 descends vertically along the groove inside the placement cavity 73 under the action of gravity. As the counterweight 74 moves, it drives the wire rope 71 to move along the inside of the limit block 72, which stretches the wire rope 71 and keeps it taut. As the take-up reel 511 winds up and unwinds, the counterweight 74 descends during winding, allowing the cable to enter the placement cavity 73. During winding, the counterweight 74 is lifted, thereby reducing the resistance of the cable during the pulling process.

[0058] To achieve the operation of the heat dissipation structure 76 in the above example, the following solution is provided: Figure 4 As shown, a touch switch 75 (specifically a touch-type timer switch) is embedded inside the placement cavity 73. Ventilation holes are equidistantly opened at the bottom of the placement cavity 73, and a heat dissipation structure 76 (specifically a cooling fan) is fixedly installed at the bottom of the placement cavity 73.

[0059] When in use, the counterweight 74 descends and contacts the touch switch 75, causing the touch switch 75 to control the operation of the heat dissipation structure 76. When the heat dissipation structure 76 is running, it drives the outside air to enter the placement cavity 73 through the vent and blows it from bottom to top along the inside of the placement cavity 73, thereby accelerating the heat dissipation of the cable after use.

[0060] Working principle: When the user finishes charging and puts the charging gun 4 back into the gun holder on the charging pile 3, the four telescopic parts 52 are activated, pushing the two sets of support plates 53 closer together. When the support plates 53 are close together, the two drive wheels 55 and gear 56 are driven to close together through the rotating shaft 54, so that the two drive wheels 55 installed below them firmly clamp the charging cable.

[0061] When the two drive wheels 55 approach each other, they drive the two gears 56 to approach each other (horizontal movement rather than rotation). At this time, one of the gears 56 drives the guide block 57 to move inside the guide groove (gear 56 and guide block 57 are rotatably connected, and guide block 57 is slidably connected to gear 64 through the guide groove, so that when gear 56 moves laterally, it can drive guide block 57 to move inside gear 64 through the guide groove). At the same time, when guide block 57 moves, it drives sprocket structure 58 to move. When sprocket structure 58 moves, it drives drive component 59 and support disk 510 to move, so that support disk 510 enters above the other gear 56.

[0062] Next, the drive motor of the drive unit 59 is started, and its output shaft drives the gear 56 to rotate. Since the two gears 56 mesh with each other, they rotate synchronously in opposite directions. When the two gears 56 rotate synchronously in opposite directions, the power is transmitted to the drive wheel 55 through the rotating shaft 54. The two drive wheels 55 rotate in opposite directions in the clamped state, generating strong friction, which drags the cable into the charging pile 3 at a uniform speed and smoothly. At the same time, its output shaft drives the sprocket structure 58 to run. When the sprocket structure 58 runs, it drives the winding wheel 511 to rotate. While the cable is being retracted, the steel wire rope 71 fixed to the end of the cable is released from the winding wheel 511. Under the action of gravity, the counterweight 74 falls vertically along the slide inside the placement cavity 73. The weight of the falling counterweight 74 ensures that the cable is always taut during the retrieval process and can be neatly and orderly coiled and fall into the placement cavity 73.

[0063] After the cable completes a full recycling or release cycle, the telescopic component 52 reverses its direction, pulling the two sets of support plates 53 away from each other, thereby completely releasing the clamping force of the two drive wheels 55 on the cable. Then, the electric telescopic rod of the telescopic component 62 is activated, pushing the rack 63 to move linearly. The rack 63 meshes with the gear 64, driving the gear 64 to rotate around its axis. Since the fixing bar 51 is welded to the gear 64, and the entire first drive mechanism, including the drive component 59, sprocket structure 58, support plate 53, etc., is connected to the fixing bar 51 through the guide block 57 and can slide in the guide groove of the gear 64, the rotation of the gear 64 will drive the entire clamping and conveying mechanism to synchronously revolve around the cable at the same angle. After the rotation is completed, the telescopic component 52 is activated again. At this time, the telescopic component 52 is activated to make the drive wheel 55 clamp the cable again. At this time, the contact point between the drive wheel 55 and the cable has changed the predetermined angle compared to before.

[0064] When the cable is fully retrieved and the counterweight 74 has fallen to its lowest position, the bottom of the counterweight 74 physically presses the touch switch 75. When the touch switch 75 is triggered, the heat dissipation structure 76 is activated. The heat dissipation structure 76 operates, generating airflow that blows upward from the vent at the bottom of the placement cavity 73. The airflow penetrates the gaps between the layers of coiled cables that are still warm, effectively carrying away the heat accumulated in the cables during charging, accelerating their cooling, and preparing them for the next high-power charging.

[0065] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it.

Claims

1. A centralized fast charging station for new energy vehicles, characterized in that, include: The base (1) serves as the base of the charging station. A charging pile (3) is provided on the top of the base (1). A charging gun (4) for charging new energy vehicles is provided on one side of the charging pile (3). A cable recycling assembly for cable recycling is provided between the charging pile (3) and the charging gun (4). The cable recycling assembly includes: a support plate (53), a drive wheel (55), a first drive mechanism, a second drive structure, a third drive structure, a counterweight structure, and a heat dissipation structure (76). The first drive mechanism is connected above the support plate (53) and is used to drive the two drive wheels (55) to rotate in opposite directions. The second drive structure is located on the inner wall of the charging pile (3) and is used to drive the drive wheel (55) to change the contact point with the cable when the cable is released. The third drive structure is fixedly installed on the support plate (53) and is used to drive the two drive wheels (55) to move closer and further away from each other. The counterweight structure is connected to the second drive structure and is used to change the bending area of ​​the cable and increase its weight. The first driving mechanism includes a rotating shaft (54), which is rotatably connected to the inside of the support plate (53). The bottom end of the rotating shaft (54) and the inside of the drive wheel (55) are connected by a key. The outer surfaces of the two rotating shafts (54) are connected by a key to a gear (56). A guide block (57) is rotatably connected to the top of one of the gears (56). A sprocket structure (58) is fixedly installed on the top of the guide block (57). A driving component (59) is fixedly installed on the top of the sprocket structure (58). The sprocket structure (58) is composed of a protective cover, two sprockets and a chain. The drive shaft of the drive member (59) passes through the protective cover, sprockets and guide block (57) and is connected to the rotating shaft (54) by a key. The drive shaft of the drive member (59) is connected to the sprocket located below the drive member (59) by a key. The bottom end of the protective cover of the sprocket structure (58) is fitted with a support plate (510). The top end of the sprocket structure (58) is fitted with a winding wheel (511). The winding wheel (511) is connected to the inside of the sprocket located above the support plate (510) by a key. The bottom end of the winding wheel (511) and the top end of the protective cover of the sprocket structure (58) are in close contact with each other.

2. The centralized fast charging station for new energy vehicles according to claim 1, characterized in that, The base (1) is also provided with a protective frame (2) to block sunlight. The support plate (53) is located inside the charging gun (4) and there are two of them. The drive wheel (55) is rotatably connected to the bottom of the support plate (53). The heat dissipation structure (76) is located at the bottom of the counterweight structure.

3. A centralized fast charging station for new energy vehicles according to claim 1, characterized in that, The third drive structure includes a telescopic component (52), and the number of the telescopic components (52) is set to four. Two telescopic components (52) form a group, and the two groups of telescopic components (52) are embedded and installed on the opposite surfaces of the two support plates (53). The same fixing strip (51) is sleeved between the two groups of telescopic components (52).

4. A centralized fast charging station for new energy vehicles according to claim 1, characterized in that, The second drive structure includes a support bar (61), which is fixedly installed on the inner wall of the charging pile (3). A telescopic component (62) is fixedly installed inside the support bar (61). A rack (63) is snapped onto the output end of the telescopic component (62). A gear (64) is meshed on the top of the outer surface of the rack (63). The gear (64) and the fixed bar (51) are welded together.

5. A centralized fast charging station for new energy vehicles according to claim 4, characterized in that, The second gear (64) is rotatably connected to the inner wall of the charging pile (3). A circular hole is opened in the middle of the second gear (64), and the cable is located inside the circular hole. A guide groove is opened on one end face of the second gear (64), and the guide block (57) is slidably connected to the inside of the second gear (64) through the guide groove.

6. A centralized fast charging station for new energy vehicles according to claim 1, characterized in that, The counterweight structure includes a wire rope (71) and a placement cavity (73). One end of the wire rope (71) is connected to a winding wheel (511). A limiting block (72) is sleeved on the outside of the wire rope (71). The limiting block (72) is fixedly connected to the top of the placement cavity (73). A counterweight block (74) is connected to the end of the wire rope (71) away from the winding wheel (511). The placement cavity (73) has symmetrically opened grooves inside. The counterweight block (74) is slidably connected to the inside of the placement cavity (73) through the grooves.

7. A centralized fast charging station for new energy vehicles according to claim 6, characterized in that, A touch switch (75) is embedded inside the placement cavity (73), and ventilation holes are provided at equal intervals at the bottom of the placement cavity (73). The heat dissipation structure (76) is fixedly installed at the bottom of the placement cavity (73).

8. A centralized fast charging station for new energy vehicles according to claim 1, characterized in that, The drive wheel (55) is fitted with a rubber sleeve on the outside, and the rubber sleeve has a wavy pattern on the outside.

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