Automobile charging pile suitable for underground garage

Abstract

An automobile charging pile suitable for an underground garage comprises a pile body used for providing a charging function for an automobile and a hanging assembly used for hanging the pile body in an area, located above a parking space, in the underground garage, and the side face of the pile body is connected with a charging gun through a charging wire; the hanging assembly comprises a lifting table body connected with the pile body, an assembling structure used for connecting the lifting table body to the top of the underground garage, and a control structure used for controlling the lifting table body. The lifting platform body can be positioned at a first position or a second position under the control of the control structure, and when the lifting platform body is positioned at the first position, the pile body is positioned at the standby position of the highest point; and when the lifting platform body is positioned at the second position, the pile body is positioned at the charging position of the lowest point. The whole charging pile is installed in a suspension mode, so that the whole charging pile does not need to occupy the ground space, the situation that parking is hindered is avoided, and due to the suspension type installation structure, the whole charging pile is located at the high position, not prone to being affected with damp and high in safety.

Description

Technical Field

[0001] The 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, car charging piles are an important part of the charging infrastructure of electric vehicles (EVs). With the popularity of electric vehicles, the requirements for car charging piles are getting higher and higher;

[0003] For example, the authorization announcement number is CN114379400B, the authorization announcement date is 2023.05.16, and the name is a car charging pile, including 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, the charging pile body is provided with a power-off mechanism, and the charging pile body is provided with a placement mechanism; the power-off mechanism includes a mounting cylinder, a slide plate, 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 cooperates with the anti-collision mechanism and the power-off mechanism to enable the charging pile to automatically power off after being hit...;

[0004] As in the above application, in the existing car charging pile structure, considering the convenience of charging pile installation and other issues, most of the current car charging piles are directly fixed on the ground. Although this solves the problem of convenient installation, it will also cause some other problems, such as: (1) The entire interior of the charging pile installed on the ground is prone to 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 a reduction in the 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 an underground garage, comprising 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 characteristics 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 a standby position at the highest point; when the lifting platform body is positioned at the second position, the pile body is located at a charging position at the lowest point.

[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 and sleeved with the second screw.

[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, and 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 which 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 installed in a staggered manner, and 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 to the first protruding slide and the second protruding slide is opened in the inner wall of the wire storage box in the vertical direction. Both the first protruding slide and the second protruding slide can slide in the groove, wherein a first screw rod is rotatably installed in the groove engaged with the second protruding slide in the vertical direction, and a first screw nut adapted to 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 mesh with each other are installed inside the gear box, wherein the first gear is transmission-connected to the second screw rod, and the second gear is transmission-connected to the first screw rod, 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 synchronously retracted and released according to the state of the pile body.

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

[0017] Furthermore, suspension rods are installed on the four corners of the main frame, the suspension rods slide through the four corner positions of the lifting platform body, and a safety stopper is provided at the bottom of the suspension rods.

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

[0019] The present invention discloses a car charging pile suitable for an underground garage. The car charging pile is installed in a suspended manner as a whole. When charging is required, the lifting platform body is controlled to descend to a second position by a control structure. After charging is completed, the lifting platform body is controlled to rise to a first position by a control structure to standby. Such a structural arrangement makes it unnecessary for the charging pile as a whole to occupy ground space, so there will be no obstruction to parking. Moreover, the hanging installation structure makes the charging pile as a whole be at a high place, which is not easy to be affected by moisture and is not easy to be touched by children playing, so the safety is relatively high.

[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, and when the pile body is in the standby position, the charging wire is retracted into the wire storage box. This structural setting ensures that the charging wire of the charging pile will not be dragged down when it 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 released according to the state of the pile body, which can ensure the synchronization of the two movements and reduce the use cost of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It 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 It is a structural schematic diagram of a car charging pile suitable for an underground garage of the present invention when the pile body is in a charging position;

[0023] Figure 3 It is a structural schematic diagram of a car charging pile suitable for an underground garage of the present invention when the pile body is 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 a central control line structure of a car charging pile suitable for an underground garage of the present invention;

[0026] Figure 6 It 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 gear box in a car charging pile suitable for an underground garage of 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 of the present invention;

[0029] Fig. 9 The present invention is a schematic diagram of a secondary rod installation structure in a car charging pile suitable for an underground garage.

[0030] Figure 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 part; 121, cylindrical part; 1210, locking mouth; 13, lifting platform body; 3, pile body; 30, charging gun locking mouth; 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 illustrating a specific implementation of a car charging pile suitable for an underground garage of the present invention. The description of the upper, lower, front, rear, top, bottom, etc. in this article is not a limitation on the specific structure or usage of the present invention, but is only a description of the relative position relationship adopted for the convenience of description. The car charging pile suitable for an underground garage of 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, including 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, and a charging gun 5 is connected to the side of the pile body 3 through a charging line 50; the suspension assembly 1 includes a lifting platform body 13 connected to the pile body 3 and an assembly structure for connecting the lifting platform body 13 to the top of the underground garage, and a control structure for controlling the lifting platform body 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. Such a 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 easy to be affected by moisture, and not easy to be 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 under the hanger 12, and a main frame 10 installed under the cross frame 11, wherein the lifting platform body 13 is installed under 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 mutually sleeved. 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, so that the lifting platform body 13 moves 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 the walking of pedestrians and causing safety hazards caused by the charging line 50 being dragged down, in the present 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, and 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 traction, and 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 arrangement ensures that the charging line 50 of the pile body 3 will not be dragged down when it is in the standby position, thereby not affecting the normal use of the space near the parking space and ensuring the safety of the entire device.

[0038] like Figure 1 - Figure 7As shown, since one end of the charging cable 50 is fixed at the bottom of the pile body 3, the charging cable 50 cannot be retracted and released by a simple wire wheel winding structure. Controlling the rotation of the 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 staggeredly installed, and the charging cable 50 passes through each of the connecting shafts 421 in sequence from left to right in the horizontal direction. A connecting shaft 421 is formed so that when the upper winding frame 42 and the lower winding frame 41 gradually move closer, the charging line 50 gradually relaxes. When the upper winding frame 42 and the lower winding frame 41 are close to the closest position (corresponding to the pile body 3 being in the charging position), the charging line 50 can be stretched to a maximum length. At this time, the charging gun 5 can be pulled to achieve charging. When the upper winding frame 42 and the lower winding frame 41 gradually move away from each other, since the charging line 50 passes through each connecting shaft 421 in turn, the charging line 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 line 50 is completely collected in the line storage box 4.

[0039] Specifically, 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, first protruding slides 4200 are 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 and installed inside 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 enhance the limiting effect on 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, wherein the first gear 71 is transmission-connected with the second screw rod 73, and the second gear 72 is transmission-connected with 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, which 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 at 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 at 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 releasing the cable, in this embodiment, the middle rotating sleeve of the connecting shaft 421 is connected to the cable passing wheel 422, and baffles are provided at both ends of the cable passing wheel 422, and the charging cable 50 passes around the two baffles.

[0043] like Figure 1 , Figure 8 and Fig. 9 As shown, in order to ensure the stability of the lifting platform body 13 during the lifting process, in this embodiment, suspension rods 6 are installed on the four corners of the main frame 10. The suspension 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 suspension rod 6. This can prevent the equipment from falling completely due to abnormal damage, thereby protecting the equipment and pedestrians below.

[0044] Specifically, 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 cable outlet 44, so that the wear of the charging cable 50 is reduced through the rotation of the guide wheel 440 when the charging cable 50 is retracted and extended.

[0045] Specifically, 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 sleeved 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 ceiling of the underground garage, 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 erection and 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 the present 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 it is necessary to install charging piles for multiple parking spaces in the same row, the cross frame 11 on the charging piles for the extended parking spaces can be extended and inserted into the other end of the cylindrical portion 121. This can make the installation of the new charging pile more convenient and require one less set of hangers 12 to be installed.

[0048] Further, such as Figure 8-9 As shown, in order to facilitate the individual disassembly and repair of one of the multiple groups of 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, and when the effective length of the cross frame 11 is reduced, it can be independently removed from between the two hangers 12, so as to achieve individual disassembly and achieve the effect of facilitating the disassembly and repair 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 achieve 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, the hollow structure at the end of the main rod 110 is installed with a first spring 1110 , and the first spring 1110 can provide a thrust to the movable rod 111 , so that the movable rod 111 is always in an extended state, thereby increasing the stability of the cross frame 11 after installation.

[0051] Specifically, 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 capable of passing the elastic pin 1122 is provided inside the cylindrical portion 121. 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 contents are further detailed descriptions of the present invention in combination with specific preferred embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope 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 line (50); characterized in that: The suspension assembly (1) comprises 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); 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.

2. The car charging pile suitable for an underground garage according to claim 1, characterized in that: The assembly structure comprises 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 (13) is installed below the main frame (10).

3. The car charging pile suitable for an underground garage according to claim 2, characterized in that: The control structure comprises 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), wherein the second screw nut (74) is adapted to and sleeved with the second screw rod (73).

4. The car charging pile suitable for an underground garage according to claim 3, characterized in that: 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 a side of the wire storage box (4), and a wire control structure is provided inside the wire storage box (4), the wire control structure being capable of controlling the charging wire (50) so that when the pile body (3) is in a charging position, the charging wire (50) is in a state where it can be extended by external traction, and when the pile body (3) is in a standby position, the charging wire (50) is retracted into the wire storage box (4).

5. The car charging pile suitable for an underground garage according to claim 4, characterized in that: The wire control structure comprises an upper winding frame (42) and a lower winding frame (41) which are parallel to each other and can move in a vertical direction, wherein the upper winding frame (42) and the lower winding frame (41) each comprise two end plates (420) and a plurality of connecting shafts (421) installed between the two end plates (420), the plurality of connecting shafts (421) on the upper winding frame (42) and the lower winding frame (41) are installed in a staggered manner, and the charging wire (50) passes through each connecting shaft (421) in sequence from left to right in a horizontal direction, so that when the upper winding frame (42) and the lower winding frame (41) gradually move closer to each other, the charging wire (50) gradually relaxes, and when the upper winding frame (42) and the lower winding frame (41) gradually move away from each other, the charging wire (50) is gradually controlled to be stored in the wire storage box (4).

6. The car charging pile suitable for an underground garage according to claim 5, characterized in that: The end plates (420) are provided with first protruding slides (4200) at both ends and with second protruding slides (4201) in the middle. A groove (40) adapted to the first protruding slide (4200) and the second protruding slide (4201) is provided on the inner wall of the wire storage box (4) in the vertical direction. Both the first protruding slide (4200) and the second protruding slide (4201) can slide in the groove (40). A first screw rod (45) is rotatably installed in the groove (40) engaged with the second protruding slide (4201) in the vertical direction. 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). The internal threads of the first screw nuts (4202) in the upper winding frame (42) and the lower winding frame (41) are in opposite directions.

7. The car charging pile suitable for an underground garage according to claim 6, characterized in that: A gear box (7) is installed on the side of the pile body (3), and a first gear (71) and a second gear (72) that mesh with each other are installed inside the gear box (7), wherein the first gear (71) is transmission-connected with the second screw rod (73), and the second gear (72) is transmission-connected with the first screw rod (45), so that when the servo motor (70) controls the rise and fall of the lifting platform body (13), under the synchronous drive of the first gear (71) and the second gear (72), the upper winding frame (42) and the lower winding frame (41) can move up and down synchronously, and the charging line (50) can be retracted and released synchronously according to the state of the pile body (3).

8. The car charging pile suitable for an underground garage according to claim 5, characterized in that: 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 wire (50) passes around between the two baffles.

9. The car charging pile suitable for an underground garage according to claim 2, characterized in that: Hanging rods (6) are installed on the four corners of the main frame (10), 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).

10. The car charging pile suitable for an underground garage according to claim 4, characterized in that: A guide wheel (440) is rotatably mounted at the bottom of the wire outlet (44).

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