A car charging pile suitable for underground garage

Abstract

A car charging pile suitable for an underground garage comprises a pile body for providing a charging function for a car, and a suspension assembly for suspending the pile body in an area above a parking space in the underground garage, wherein a charging gun is connected to the side of the pile body via a charging cable; the suspension assembly comprises a lifting platform body connected to the pile body, an assembly structure for connecting the lifting platform body to the top of the underground garage, and a control structure for controlling the lifting platform body; the lifting platform body can be positioned in a first position or a second position under the control of the control structure, and when the lifting platform body is positioned in the first position, the pile body is positioned in a standby position at the highest point; when the lifting platform body is positioned in the second position, the pile body is positioned in a charging position at the lowest point. The present invention adopts a suspended installation as a whole, so that the charging pile as a whole does not need to occupy ground space, and therefore does not hinder parking. In addition, this suspended installation structure places the charging pile as a whole in a high position, is not easily affected by moisture, and has a higher safety.

Description

Technical Field

[0001] The present invention belongs to the technical field of automobile charging piles and relates to an automobile charging pile suitable for an underground garage. Background Art

[0002] As is known to all, car charging piles are an important part of the electric vehicle (EV) charging infrastructure. With the popularity of electric vehicles, the requirements for car charging piles are getting higher and higher.

[0003] For example, the authorization publication number is CN114379400B, and the authorization publication date is May 16, 2023. The title is "A Vehicle Charging Pile," which includes a charging pile body, a charging gun, a first wiring harness, a second wiring harness, a third wiring harness, and a control panel. The charging pile body is provided with an anti-collision mechanism, a power-off mechanism, and a placement mechanism. The power-off mechanism includes a mounting cylinder, a slide, a pressing block, a touch button, four steel wires, four guide wheels, four mounting seats, four push rods, and a power-off assembly. The present invention utilizes the anti-collision mechanism and the power-off mechanism to automatically power off the charging pile after a collision.

[0004] As in the above application, in the existing car charging pile structure, considering the installation convenience of the charging pile, most of the current car charging piles are directly fixed on the ground. Although the installation convenience problem is solved, some other problems will also arise, such as: (1) The entire interior of the charging pile installed on the ground is easily affected by moisture, especially for charging piles installed in underground garages. This problem is particularly prominent; (2) Charging piles installed on the ground are easy to be touched and played by children due to their overall low height, so there are certain safety hazards; (3) They take up a large space. Most of them are designed according to parking spaces, and often occupy part of the parking space or the space around the parking space, which can easily lead to the reduction of parking space and affect parking. Summary of the Invention

[0005] The purpose of the present invention is to overcome the defects of the prior art and provide a car charging pile suitable for underground garages that does not require ground space, is not easily affected by moisture, and has high safety.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] A car charging pile suitable for use in an underground garage comprises a pile body for providing a charging function for a car, and a suspension assembly for suspending the pile body in an area above a parking space in the underground garage, wherein a charging gun is connected to a side of the pile body via a charging cable; the characteristics of the pile pile are:

[0008] The suspension assembly includes a lifting platform body connected to the pile body, an assembly structure for connecting the lifting platform body to the top of the underground garage, and a control structure for controlling the lifting platform body;

[0009] The lifting platform body can be positioned at a first position or a second position under the control of the control structure. When the lifting platform body is positioned at the first position, the pile body is located at the highest point of the standby position; when the lifting platform body is positioned at the second position, the pile body is located at the lowest point of the charging position.

[0010] Furthermore, the assembly structure includes a hanger connected to the roof of the underground garage, a cross frame installed below the hanger, and a main frame installed below the cross frame, wherein the lifting platform body is installed below the main frame.

[0011] Furthermore, the control structure includes a servo motor installed under the lifting platform body, a second screw connected to the output shaft of the servo motor, and a second screw nut embedded in the main frame, wherein the second screw nut is adapted to the second screw and is socketed with each other.

[0012] Furthermore, a wire storage box for storing the charging wire is provided under the pile body, and a wire outlet for leading out the charging wire is provided on the side of the wire storage box. A wire control structure is provided in the wire storage box, and the wire control structure can control the charging wire so that when the pile body is in the charging position, the charging wire is in a state where it can be pulled out by the outside world; when the pile body is in the standby position, the charging wire is recovered into the wire storage box.

[0013] Furthermore, the line control structure includes an upper winding frame and a lower winding frame that are parallel to each other and can move in the vertical direction, wherein the upper winding frame and the lower winding frame each include two end plates and a plurality of connecting shafts installed between the two end plates, and the plurality of connecting shafts on the upper winding frame and the lower winding frame are staggered. The charging line passes through each connecting shaft in sequence from left to right in the horizontal direction, so that when the upper winding frame and the lower winding frame gradually move closer, the charging line gradually relaxes, and when the upper winding frame and the lower winding frame gradually move away, the charging line is gradually controlled and collected into the line storage box.

[0014] Furthermore, a first protruding slide is provided at both ends of the end plate, and a second protruding slide is provided in the middle. A groove adapted for the first protruding slide and the second protruding slide is opened in the inner wall of the wire storage box in the vertical direction, and both the first protruding slide and the second protruding slide can slide in the groove, wherein a first screw rod is installed in the groove engaged with the second protruding slide in the vertical direction, and a first screw nut adapted and sleeved with the first screw rod is embedded and installed inside the second protruding slide, and the internal thread directions of the first screw nuts in the upper winding frame and the lower winding frame are opposite.

[0015] Furthermore, a gear box is installed on the side of the pile body, and a first gear and a second gear that are meshed with each other are installed inside the gear box, wherein the first gear is connected to the second screw rod for transmission, and the second gear is connected to the first screw rod for transmission, so that when the servo motor controls the rise and fall of the lifting platform body, under the synchronous drive of the first gear and the second gear, the upper winding frame and the lower winding frame can move up and down synchronously, and the charging cable can be retracted and extended synchronously according to the state of the pile body.

[0016] Furthermore, the middle part of the connecting shaft is rotatably sleeved with a wire-passing wheel, and baffles are provided at both ends of the wire-passing wheel, and the charging cable passes around between the two baffles.

[0017] Furthermore, the four corners of the main frame are each provided with a suspension rod, the suspension rod slides through the four corner positions of the lifting platform body, and a safety stop is provided at the bottom of the suspension rod.

[0018] Furthermore, a guide wheel is rotatably mounted at the bottom of the outlet.

[0019] The present invention provides a car charging pile suitable for an underground garage. The car charging pile is installed in a suspended manner. When charging is required, a lifting platform is controlled by a control structure to descend to a second position. After charging is completed, the lifting platform is controlled by the control structure to ascend to a first position for standby. This structural arrangement means that the charging pile does not need to occupy ground space as a whole, thus not hindering parking. In addition, the suspended installation structure places the charging pile in a high position, making it less susceptible to moisture and less likely to be touched by children playing, thereby increasing safety.

[0020] The car charging pile is provided with a wire storage box that can accommodate the charging wire, so that when the pile body is in the charging position, the charging wire is in a state where it can be pulled out by the outside world. When the pile body is in the standby position, the charging wire is retracted into the wire storage box. This structural setting prevents the charging wire from being dragged down when the charging pile is on standby, which does not affect the normal use of the space near the parking space and can ensure the safety of the entire device. In addition, through the design of the equipment structure, the charging wire can be synchronously retracted and extended according to the state of the pile body, which can not only ensure the synchronization of the two movements, but also reduce the cost of using the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a car charging pile suitable for an underground garage according to the present invention;

[0022] Figure 2 This is a structural schematic diagram of a car charging pile suitable for an underground garage according to the present invention when the pile body is in the charging position;

[0023] Figure 3 This is a structural schematic diagram of a car charging pile suitable for an underground garage according to the present invention, with the pile body in a standby position;

[0024] Figure 4 This is a schematic diagram of the internal structure of a wire storage box in a car charging pile suitable for an underground garage according to the present invention;

[0025] Figure 5 This is a schematic diagram of the installation structure of the central control line structure of a car charging pile suitable for an underground garage of the present invention;

[0026] Figure 6 This is a schematic diagram of the upper winding frame structure of a car charging pile suitable for an underground garage according to the present invention;

[0027] Figure 7 This is a schematic diagram of the internal structure of a gearbox in a car charging pile suitable for an underground garage according to the present invention;

[0028] Figure 8 This is a schematic diagram of the structure of a suspension component in a car charging pile suitable for an underground garage according to the present invention;

[0029] Figure 9 The diagram is a schematic diagram of the auxiliary rod installation structure of a car charging pile suitable for an underground garage according to the present invention.

[0030] Reference numerals: 1, suspension assembly; 10, main frame; 11, cross frame; 110, main rod; 1100, limit slot; 111, movable rod; 1110, first spring; 1111, limit convex body; 112, auxiliary rod; 1120, cavity; 1121, second spring; 1122, spring pin; 1123, tool hole; 12, hanger; 120, L-shaped fixing portion; 121, cylindrical portion; 1210, locking opening; 13, lifting platform body; 3, pile body; 30, charging gun locking opening; 4, wire storage box; 40, slot ; 41. Lower winding frame; 42. Upper winding frame; 420. End plate; 4200. First protruding slide; 4201. Second protruding slide; 4202. First lead screw nut; 421. Connecting shaft; 422. Wire-passing wheel; 43. Slide rod; 44. Wire outlet; 440. Guide wheel; 45. First lead screw; 5. Charging gun; 50. Charging line; 6. Suspension rod; 60. Safety stop; 7. Gear box; 70. Servo motor; 71. First gear; 72. Second gear; 73. Second lead screw; 74. Second lead screw nut. DETAILED DESCRIPTION

[0031] The following is combined with Figures 1 to 9, further describing a specific embodiment of a car charging pile suitable for an underground garage according to the present invention. The descriptions of the upper, lower, front, rear, top, and bottom, etc., herein, regarding the orientation, are not intended to limit the specific structure or usage of the present invention, but are merely descriptions of relative positional relationships for ease of description. The car charging pile suitable for an underground garage according to the present invention is not limited to the description of the following embodiments.

[0032] like Figure 1-Figure 3 As shown, this embodiment provides a car charging pile suitable for an underground garage, comprising a pile body 3 for providing a charging function for a car, and a suspension assembly 1 for suspending the pile body 3 in an area above a parking space in the underground garage. A charging gun 5 is connected to the side of the pile body 3 via a charging cable 50. The suspension assembly 1 includes a lifting platform 13 connected to the pile body 3, an assembly structure for connecting the lifting platform 13 to the top of the underground garage, and a control structure for controlling the lifting platform 13.

[0033] Under the control of the control structure, the lifting platform body 13 can be positioned at the first position or the second position. When the lifting platform body 13 is positioned at the first position, the pile body 3 is located at the highest standby position; when the lifting platform body 13 is positioned at the second position, the pile body 3 is located at the lowest charging position, and a charging gun engaging opening 30 for placing the charging gun 5 is provided on the side of the pile body 3.

[0034] Based on this, the car charging pile is installed in a suspended manner as a whole. When charging is needed, the lifting platform body 13 is controlled to descend to the second position through the control structure (the control structure can be remotely controlled wirelessly by remote control). After charging is completed, the lifting platform body 13 is controlled to rise to the first position through the control structure to standby. This structural setting makes the charging pile as a whole not need to occupy ground space, so there will be no obstruction to parking. In addition, this suspended installation structure makes the charging pile as a whole be at a high place, not easily affected by moisture, and not easily touched by children playing, so it is safer.

[0035] like Figure 1 - Figure 3 and Figure 7 As shown, in order to realize the installation of the lifting platform body 13, in this embodiment, the assembly structure includes a hanger 12 connected to the roof of the underground garage, a cross frame 11 installed below the hanger 12, and a main frame 10 installed below the cross frame 11, wherein the lifting platform body 13 is installed below the main frame 10.

[0036] like Figure 7As shown, in order to realize the lifting and lowering control of the lifting platform body 13, in this embodiment, the control structure includes a servo motor 70 installed under the lifting platform body 13, a second screw rod 73 connected to the output shaft of the servo motor 70, and a second screw nut 74 embedded in the main frame 10, wherein the second screw nut 74 is adapted to the second screw rod 73 and is connected to each other. When the servo motor 70 is running, it drives the second screw rod 73 to rotate. Since the position of the main frame 10 is fixed, the lifting platform body 13 moves in the vertical direction as a whole under the cooperation of the second screw nut 74, and the forward rotation and flipping of the servo motor 70 correspond to the rising and falling of the lifting platform body 13, thereby realizing the movement of the lifting platform body 13 between the first position and the second position.

[0037] like Figure 1 - Figure 7 As shown, in order to prevent the charging line 50 connected to the pile body 3 from being dragged down when the pile body 3 is in the standby position, thereby affecting pedestrians' walking and causing safety hazards caused by the charging line 50 being dragged down, in this embodiment, a line storage box 4 for storing the charging line 50 is provided under the pile body 3, and a line outlet 44 for leading out the charging line 50 is provided on the side of the line storage box 4. A line control structure is provided in the line storage box 4, which can control the charging line 50 so that when the pile body 3 is in the charging position, the charging line 50 is in a state where it can be pulled out by external force. When the pile body 3 is in the standby position, the charging line 50 is recovered into the line storage box 4. Such a structural setting ensures that the charging line 50 of the pile body 3 will not be dragged down when it is on standby, which neither affects the normal use of the space near the parking space nor ensures the safety of the entire device.

[0038] like Figure 1 - Figure 7As shown, since one end of the charging cable 50 is fixed to the bottom of the pile body 3, the charging cable 50 cannot be retracted and released by a simple wire wheel winding structure. The rotation of the wire wheel winding structure will cause the two ends of the charging cable 50 to be reeled and released synchronously or one end to be released and the other end to be reeled in. Based on this, in this embodiment, the wire control structure includes an upper winding frame 42 and a lower winding frame 41 that are parallel to each other and can move in the vertical direction, wherein the upper winding frame 42 and the lower winding frame 41 each include two end plates 420 and a plurality of connecting shafts 421 installed between the two end plates 420, and the plurality of connecting shafts 421 on the upper winding frame 42 and the lower winding frame 41 are staggered. The charging cable 50 passes through each end plate 420 in sequence from left to right in the horizontal direction. The connecting shaft 421 makes it possible for the charging cable 50 to gradually relax as the upper winding frame 42 and the lower winding frame 41 gradually approach each other. When the upper winding frame 42 and the lower winding frame 41 are close to their closest position (corresponding to the pile body 3 being in the charging position), the charging cable 50 can be stretched to its maximum length. At this time, charging can be achieved by pulling the charging gun 5. When the upper winding frame 42 and the lower winding frame 41 gradually move away from each other, since the charging cable 50 passes through each connecting shaft 421 in turn, the charging cable 50 is gradually controlled to be recovered. When the upper winding frame 42 and the lower winding frame 41 are away from each other to the maximum position (corresponding to the pile body 3 being in the standby position), the excess part of the charging cable 50 outside is completely collected into the wire storage box 4.

[0039] Specifically, such as Figure 4 - Figure 7 As shown, in order to realize the lifting and lowering control of the upper winding frame 42 and the lower winding frame 41, in this embodiment, a first protruding slide 4200 is provided at both ends of the end plate 420, and a second protruding slide 4201 is provided in the middle. A groove 40 adapted to the first protruding slide 4200 and the second protruding slide 4201 is opened in the inner wall of the wire storage box 4 in the vertical direction. The first protruding slide 4200 and the second protruding slide 4201 can both slide in the groove 40, wherein a first screw rod 45 is rotatably installed in the groove 40 engaged with the second protruding slide 4201 in the vertical direction, and a first screw nut 4202 adapted to and sleeved with the first screw rod 45 is embedded in the second protruding slide 4201. The internal thread directions of the first lead screw nut 4202 in the upper winding frame 42 and the lower winding frame 41 are opposite, so that when the first screw 45 rotates, under the action of the two first lead screw nuts 4202 with opposite thread directions, the upper winding frame 42 and the lower winding frame 41 move in opposite directions, thereby realizing synchronous and directional control of the upper winding frame 42 and the lower winding frame 41. Specifically, in order to improve the stability of the movement of the upper winding frame 42 and the lower winding frame 41, a sliding rod 43 is installed in the groove 40 engaged with the first protruding slide 4200 in a vertical direction, and the sliding rod 43 slides through the first protruding slide 4200, so that the sliding rod 43 can improve the limiting effect of the first protruding slide 4200.

[0040] like Figure 7As shown, in order to realize the synchronous retraction and extension of the charging line 50 when the pile body 3 is directly switched between the standby position and the charging position, in this embodiment, a gear box 7 is installed on the side of the pile body 3, and a first gear 71 and a second gear 72 are installed inside the gear box 7, which are meshed with each other, wherein the first gear 71 is transmission-connected to the second screw rod 73, and the second gear 72 is transmission-connected to the first screw rod 45. Such a structural arrangement enables the upper winding frame 42 and the lower winding frame 41 to move up and down synchronously under the synchronous drive of the first gear 71 and the second gear 72 when the servo motor 70 controls the rise and fall of the lifting platform body 13, so that the charging line 50 can be synchronously retracted and extended according to the state of the pile body 3. This can not only ensure the synchronization of the movements of the two, but also reduce the control cost of the equipment. The retraction and extension of the charging line 50 does not require additional motor control.

[0041] Specifically, the upper part of the second screw rod 73 adopts a threaded structure, and the lower part adopts an axial rod structure. The axial rod structure of the lower part of the second screw rod 73 is socketed with the first gear 71. The upper part of the first screw rod 45 adopts a axial rod structure, and the lower part adopts a threaded structure. The axial rod structure of the upper part of the first screw rod 45 extends to the gear box 7 and is socketed with the second gear 72.

[0042] like Figure 5 - Figure 6 As shown, since the charging cable 50 has a certain hardness, in order to avoid the situation where the charging cable 50 is difficult to pull when winding or unwinding, in this embodiment, the middle part of the connecting shaft 421 is rotatably sleeved with a wire-passing wheel 422, and baffles are provided at both ends of the wire-passing wheel 422, and the charging cable 50 passes around the two baffles.

[0043] like Figure 1 、 Figure 8 and Figure 9 As shown, in order to ensure the stability of the lifting platform body 13 during the lifting process, in this embodiment, hangers 6 are installed on the four corners of the main frame 10. The hangers 6 slide through the four corner positions of the lifting platform body 13, and a safety stop 60 is provided at the bottom of the hanger 6. This can prevent the equipment from falling completely due to abnormal damage, thereby protecting the equipment and pedestrians below.

[0044] Specifically, such as Figure 1 As shown, in order to reduce the wear of the charging cable 50 during the process of retracting and extending, in this embodiment, a guide wheel 440 is rotatably installed at the bottom position of the outlet 44, so that the wear of the charging cable 50 is reduced by the rotation of the guide wheel 440 when the charging cable 50 is retracted and extended.

[0045] Specifically, such as Figure 8-9As shown, in order to facilitate the installation of the pile body 3 , in this embodiment, two cross frames 11 are provided and are parallel to each other. Both sides of the main frame 10 adopt cylindrical structures and are fitted on the two cross frames 11 .

[0046] Furthermore, the hanger 12 includes an L-shaped fixing portion 120 and a cylindrical portion 121, wherein the horizontal end of the L-shaped fixing portion 120 is fixed on the top plate of the underground garage, and the cylindrical portion 121 is located at the bottom of the vertical end of the L-shaped fixing portion 120, and the end of the cross frame 11 is sleeved in the cylindrical portion 121, thereby realizing the installation of the cross frame 11.

[0047] Further, such as Figure 8-9 As shown, in order to make the charging pile extensible and easy to install, in this embodiment, one end of the cross frame 11 extends to the half position or less than the half position inside the cylindrical portion 121. In this way, when charging piles for multiple parking spaces in the same row need to be installed, the cross frame 11 on the charging pile of the extended parking space can be extended and inserted into the other end of the cylindrical portion 121. This makes the installation of the new charging pile more convenient and requires one less set of hangers 12 to be installed.

[0048] Further, such as Figure 8-9 As shown, in order to facilitate the separate disassembly and maintenance of one of the multiple charging piles when it is damaged, in this embodiment, the cross frame 11 includes a main rod 110 with a hollow structure at both ends and two auxiliary rods 112 arranged at the ends of the main rod 110, wherein one end of the auxiliary rod 112 is provided with a movable rod 111 with the same diameter as the hollow structure at the end of the main rod 110, one end of the movable rod 111 is inserted into the hollow structure at the end of the main rod 110, and can slide in the hollow structure, so that the effective length of the entire cross frame 11 can be adjusted by controlling the movement of the auxiliary rod 112. When the effective length of the cross frame 11 is reduced, it can be independently removed from between the two hangers 12, thereby realizing its separate disassembly, achieving the effect of facilitating the disassembly and maintenance of the corresponding pile body 3, and when the effective length of the cross frame 11 is extended, it can be engaged between the two hangers 12 to realize its independent installation.

[0049] Further, such as Figure 8-9 As shown, in order to ensure the stability of the cross frame 11 after installation and prevent it from falling off, in this embodiment, a limiting slot 1100 is opened along the length direction at the hollow structure at the end of the main rod 110, and a limiting protrusion 1111 is provided at one end of the movable rod 111 located inside the main rod 110. The limiting protrusion 1111 slides and engages in the limiting slot 1100, which can prevent the movable rod 111 from separating from the main rod 110, thereby ensuring that the cross frame 11 will not fall off.

[0050] Specifically, a first spring 1110 is installed at the hollow structure at the end of the main rod 110. The first spring 1110 can provide a thrust to the movable rod 111 so that it is always in an extended state, thereby increasing the stability of the cross frame 11 after installation.

[0051] Specifically, such as Figure 8-9 As shown, in order to improve the connectivity between the cross frame 11 and the cylindrical portion 121 after installation, a cavity 1120 is provided inside one end of the auxiliary rod 112 which is inserted into the cylindrical portion 121, and a T-shaped elastic pin 1122 is movably connected to the cavity 1120 through a second spring 1121, and a locking opening 1210 is provided inside the cylindrical portion 121, through which the elastic pin 1122 can pass. When the cross frame 11 is installed, the bottom of the elastic pin 1122 is engaged in the locking opening 1210 under the elastic force of the second spring 1121, thereby achieving the effect of increasing the installation stability of the cross frame 11. When it is necessary to control the contraction of the cross frame 11, the bottom of the elastic pin 1122 is pushed out of the locking opening 1210 by a tool, and then the auxiliary rod 112 is slid.

[0052] Furthermore, in order to facilitate the control of the contraction of the auxiliary rod 112, a tool hole 1123 is radially opened on the auxiliary rod 112. When it is necessary to control the contraction of the cross frame 11, the tool can be inserted into the tool hole 1123, and then the auxiliary rod 112 can be moved as a whole using the tool. The operation is convenient and quick.

[0053] The above is a further detailed description of the present invention in conjunction with specific preferred embodiments, and the specific implementation of the present invention should not be considered to be limited to these descriptions. For those skilled in the art of the present invention, without departing from the concept of the present invention, several simple deductions or substitutions can be made, which should be considered to fall within the scope of protection of the present invention.

Claims

1. A car charging pile suitable for an underground garage, comprising a pile body (3) for providing a charging function for a car, and a suspension assembly (1) for suspending the pile body (3) in an area above a parking space in the underground garage, wherein a charging gun (5) is connected to a side of the pile body (3) via a charging cable (50); the characteristics of the pile body (3) are as follows: The suspension assembly (1) includes a lifting platform body (13) connected to a pile body (3), an assembly structure for connecting the lifting platform body (13) to the top of an underground garage, and a control structure for controlling the lifting platform body (13), wherein the assembly structure includes a main frame (10) arranged below the top plate of the underground garage, a wire storage box (4) for storing a charging wire (50) is provided below the pile body (3), a wire outlet (44) for leading out the charging wire (50) is provided on the side of the wire storage box (4), and a wire control structure is provided in the wire storage box (4), wherein the wire control structure includes an upper winding frame (42) and a lower winding frame (41) which are parallel to each other and can move in a vertical direction, and the upper winding frame (42) and the lower winding frame (41) each include two end plates (420) and a plurality of wires installed on the two end plates (42). 0), a plurality of coupling shafts (421) on the upper winding frame (42) and the lower winding frame (41) are installed in a staggered manner, and the charging line (50) passes through each coupling shaft (421) in sequence from left to right in the horizontal direction, and a second protruding slide (4201) is provided in the middle of both ends of the end plate (420), and a groove (40) adapted to the second protruding slide (4201) is provided on the inner wall of the storage box (4) in the vertical direction, and a first screw rod (45) is rotatably installed in the groove (40), and a first screw nut (4202) adapted to and sleeved with the first screw rod (45) is embedded and installed inside the second protruding slide (4201), and the internal thread directions of the first screw nut (4202) in the upper winding frame (42) and the lower winding frame (41) are opposite; The lifting platform (13) can be positioned at a first position or a second position under the control of the control structure. When the lifting platform (13) is positioned at the first position, the pile body (3) is located at a standby position at the highest point; when the lifting platform (13) is positioned at the second position, the pile body (3) is located at a charging position at the lowest point. The control structure includes a servo motor (70) installed below the lifting platform body (13), a second screw rod (73) connected to the output shaft of the servo motor (70), and a second screw nut (74) embedded in the main frame (10). The second screw nut (74) and the second screw rod (73) are adapted and sleeved with each other. A gear box (7) is installed on the side of the pile body (3). A first gear (71) and a second gear (72) that mesh with each other are installed inside the gear box (7). The first gear (71) is connected to the second screw rod (73) in a transmission manner, and the second gear (72) is connected to the first screw rod (45) in a transmission manner.

2. The car charging pile suitable for an underground garage according to claim 1, characterized in that: The assembly structure further comprises a hanger (12) connected to the roof of the underground garage and a cross frame (11) installed below the hanger (12), wherein the main frame (10) is installed below the cross frame (11), and the lifting platform (13) is installed below the main frame (10).

3. The car charging pile suitable for an underground garage according to claim 1, characterized in that: Both ends of the end plate (420) are further provided with first protruding slides (4200), and the inner wall of the wire storage box (4) is further provided with grooves (40) corresponding to and adapted to the first protruding slides (4200) in the vertical direction, and the first protruding slides (4200) are capable of sliding in the corresponding adapted grooves (40).

4. The car charging pile suitable for an underground garage according to claim 1, characterized in that: The middle portion of the connecting shaft (421) is rotatably sleeved with a wire-passing rotating wheel (422), and baffles are provided at both ends of the wire-passing rotating wheel (422), and the charging wire (50) passes around between the two baffles.

5. The car charging pile suitable for an underground garage according to claim 1, characterized in that: Hanging rods (6) are installed on the four corners of the main frame (10), and the hanging rods (6) slide through the four corner positions of the lifting platform body (13), and a safety stopper (60) is provided at the bottom of the hanging rod (6).

6. The car charging pile suitable for an underground garage according to claim 1, characterized in that: A guide wheel (440) is rotatably mounted at the bottom of the wire outlet (44).

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