CN111645549A

CN111645549A - Non-fixed-point charging pile for underground garage

Info

Publication number: CN111645549A
Application number: CN202010545948.0A
Authority: CN
Inventors: 周立
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-16
Filing date: 2020-06-16
Publication date: 2020-09-11

Abstract

The invention discloses a non-fixed-point charging pile for an underground garage, which comprises a top seat, wherein the bottom of the top seat is provided with a traveling rail, a reversing device is arranged in the top seat and is communicated with the traveling rail, a moving mechanism is arranged in the traveling rail, the lower end of the moving mechanism is arranged in a shell, the left side of the interior of the shell is provided with an inserting structure, the right side of the interior of the shell is provided with a hoisting mechanism, and the bottom of the shell is provided with a control mechanism. This electric pile is filled to non-point type that underground garage used, be provided with the switching-over device, track and moving mechanism advance, first compression spring promotes turn guide block embedding main orbit, change the rotation direction of gear, make the gear pass through the second rack and remove to assisting inside the track, make the accurate top of removing to appointed parking stall of casing, part electric connection external power source in the casing is accomplished the electric motor car and is charged, reduce the quantity of laying of filling electric pile, also be convenient for increase at any time or reduce simultaneously, it has the practicality to use more.

Description

Non-fixed-point charging pile for underground garage

Technical Field

The invention relates to the technical field of charging piles, in particular to a non-fixed-point type charging pile for an underground garage.

Background

Along with the development of the technology and the enhancement of environmental awareness of people, the electric vehicle occupies a higher and higher area in the vehicle, so that a large number of matched charging piles are needed.

Present fill electric pile and fix on the parking stall totally usually, but fill electric pile and lay with high costs, it all installs electric pile to be difficult to all to fill in every parking stall, the actual survey is found, underground garage fills electric pile through the mode distribution installation of subregion usually, but the electric motor car changes year by year with burning oil truck retaining ratio, make original electric pile that fills can't satisfy the demand, often need increase to fill electric pile, current electric pile that fills is direct mount subaerial usually, occupy a large amount of land space, make underground garage's area that can parkked reduce, use cost has been increased, and current electric pile that fills needs manual rolling cable, and fill the cable that electric pile used and the quality of rifle that charges great, the manual work is difficult to carry the rolling, it is very inconvenient to use, to above-mentioned problem.

Disclosure of Invention

The invention aims to provide a non-fixed point type charging pile for an underground garage, which aims to solve the problems that the existing charging pile proposed in the background technology is usually completely fixed on a parking space, however, the cost of laying the charging piles is high, it is difficult to install the charging piles on each parking space, and practical investigation finds that the underground garage is generally distributed and installed with the charging piles in a partition mode, however, the proportion of the electric vehicle and the fuel vehicle is changed year by year, so that the original charging pile can not meet the requirements, the charging pile is often required to be added, the existing charging pile is usually directly arranged on the ground, a large amount of land space is occupied, the parking area of an underground garage is reduced, the use cost is increased, and current fill electric pile needs manual rolling cable, and fills the cable that electric pile used and the quality of rifle that charges is great, and the manual work is difficult to carry the rolling, uses very inconvenient problem.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a non-fixed point type that underground garage used fills electric pile, includes the footstock, the orbit of marcing has been seted up to the footstock bottom, and the inside switching-over device that is provided with of footstock, and the switching-over device is linked together with the orbit of marcing simultaneously, the inside moving mechanism that sets up of orbit of marcing, and the moving mechanism lower extreme sets up inside the casing, the inside left side of casing is provided with grafting structure, and the inside right side of casing is provided with hoisting mechanism, the casing bottom is provided with control mechanism, the orbit of marcing includes:

the guide groove is formed in the bottom of the top seat, the main rail and the auxiliary rail are formed in the middle of the top seat, the front end of the main rail is communicated with the rear end of the auxiliary rail, the lower end of the main rail and the lower end of the auxiliary rail are communicated with the upper end of the guide groove, and first racks are arranged on the rear side of the main rail and the right side of the auxiliary rail;

the reversing device comprises:

the inner part of the first sliding chute is connected with a turning guide block in a sliding manner, one side of the turning guide block is provided with a second rack, the upper side of the top seat is provided with a first sliding chute and a second sliding chute, the lower end of the first sliding chute and the lower end of the second sliding chute are communicated with the upper end of the main track and the upper end of the auxiliary track, a first compression spring and a first electromagnetic switch are arranged between the upper end of the first sliding chute and the turning guide block, the first compression spring is arranged on the outer side of the first electromagnetic switch, the inner part of the second sliding chute is connected with a straight guide block in a sliding manner, a second compression spring and a second electromagnetic switch are arranged between the upper end of the straight guide block and the upper end of the second sliding chute, and the second compression spring is arranged;

the moving mechanism comprises;

the outer end of each gear is meshed with the first rack or the second rack, the bottom of each gear is rotatably connected with a ball, the lower end of each ball is attached to the lower side of the main track or the lower side of the auxiliary track, the upper end of each gear is arranged in the corresponding travelling track, the lower end of each gear penetrates through the shell to be meshed with the corresponding chain, the middle of each shell is provided with a stepping motor, and the upper end of each stepping motor is connected with the lower end of the rightmost gear;

the grafting structure includes:

the front end of the incoming line terminal is electrically connected with the rear end of the outgoing line terminal, the outgoing line terminal is arranged on the front side of the top seat, the rear end of the incoming line terminal is electrically connected with the left side of the front end of the charging component, the charging component is arranged on the left side in the shell, the right side of the front end of the charging component is electrically connected with the electric slip ring stator, and the front end of the electric slip ring stator is electrically connected with the electric slip ring rotor;

the hoisting mechanism comprises:

the winding roller is arranged in the winding roller, an electric slip ring rotor is arranged in the winding roller, a cable is fixed on the outer side of the front end of the winding roller, one end of the cable penetrates through the winding roller and is electrically connected with the electric slip ring rotor, a charging gun is arranged at the other end of the winding roller, a driving motor is arranged on the right side of the shell, the front end of the driving motor is connected with the outer side of the rear end of the winding roller through a synchronous belt, a protective shell is arranged on the right front side of the shell, an opening is formed in the bottom of the protective shell, and the winding roller and the driving motor are both arranged in the protective shell;

the control mechanism includes:

the control panel is a box body arranged below the shell, a signal processor is arranged inside the control panel, and a proximity sensor is arranged inside the main track.

Preferably, the distance between the rightmost end of the turning guide block and the leftmost end of the adjacent right turning guide block is larger than the diameter of the gear.

Preferably, both ends laminating main track inner wall setting around the guide block turns, and the upper and lower both sides in the middle part of the guide block that turns and the upper and lower both sides of main track are located same horizontal plane.

Preferably, the first electromagnetic switch, the second electromagnetic switch, the proximity sensor, the stepping motor, the control panel and the signal processor are electrically connected.

Preferably, the left end and the right end of the straight guide block are attached to the inner wall of the auxiliary track, and the upper side and the lower side of the middle of the straight guide block and the upper side and the lower side of the auxiliary track are located on the same horizontal plane.

Preferably, the outer end of the gear is attached to the inner part of the guide groove.

Preferably, the number of the gears and the number of the auxiliary tracks are three, and the gears and the auxiliary tracks are correspondingly arranged.

Preferably, the balls are distributed in an annular array with the gear center line as the center.

Preferably, the opening center line and the charging gun center line are located on the same vertical line.

Compared with the prior art, the invention has the beneficial effects that: the non-fixed point type charging pile for the underground garage,

(1) the electric vehicle charging device is provided with a reversing device, a traveling track and a moving mechanism, a stepping motor drives a gear to rotate through a chain, the gear pulls a shell to move along a main track through the cooperation with a first rack, a first compression spring pushes a turning guide block to be embedded into the main track, the rotating direction of the gear is changed, the gear moves into an auxiliary track through a second rack, a plurality of groups of shells move through the cooperation of the reversing device and the moving structure, the shells accurately move to the upper part of an appointed parking space, parts in the shells are electrically connected with an external power supply to charge the electric vehicle, the laying number of charging piles is reduced, meanwhile, the parts are convenient to increase or decrease at any time, and the electric vehicle charging device is more practical to;

(2) the charging pile is provided with a main track, a guide groove and a ball, the lower end of the gear is connected with the lower end of the main track in a sliding mode through the ball, the ball reduces the friction force between the gear and the main track, the gear can slide more smoothly along the guide groove, meanwhile, the gear plays a role of supporting a shell, the charging pile is suspended in the air, the ground occupied area of the charging pile is reduced, and the use cost is reduced;

(3) be provided with driving motor, wind-up roll and mounting, driving motor passes through the hold-in range and stimulates the wind-up roll and rotate in the mounting outside, and the winding rolling cable when the wind-up roll is rotatory, and cable one end is passed through electric slip ring rotor and electric slip ring rotor electric connection, makes the rifle that charges and the electric connection between the components and parts that charge not influenced, has reduced artificial intensity of labour, and it is more convenient to use.

Drawings

FIG. 1 is a schematic cross-sectional front view of the present invention;

FIG. 2 is a schematic top view of a cross-sectional structure of the gear entering the auxiliary track according to the present invention;

FIG. 3 is a schematic front sectional view of the protective shell according to the present invention;

FIG. 4 is a schematic diagram of a left side view cross-sectional structure of the present invention;

FIG. 5 is a schematic top sectional view of the housing of the present invention;

FIG. 6 is a schematic bottom view of the structure between the gear and the balls of the present invention;

fig. 7 is a schematic diagram of the work flow structure of the present invention.

In the figure: 1. a footstock, 2, a traveling track, 21, a guide groove, 22, a main track, 23, an auxiliary track, 24, a first rack, 3, a reversing device, 31, a first chute, 32, a turning guide block, 33, a second rack, 34, a second chute, 35, a first compression spring, 36, a first electromagnetic switch, 37, a second compression spring, 38, a second electromagnetic switch, 39, a straight guide block, 4, a moving mechanism, 41, a gear, 42, a ball, 43, a chain, 44, a stepping motor, 5, a housing, 6, a plugging structure, 61, a wire inlet terminal, 62, a wire outlet terminal, 63, a charging component, 64, an electrical slip ring stator, 65, an electrical slip ring rotor, 7, a winding mechanism, 71, a fixing piece, 72, a winding roller, 73, a cable, 74, a charging gun, 75, a driving motor, 76, a synchronous belt, 77, a protective shell, 78, an opening, 8, a control mechanism, 81. control panel, 82, signal processor, 83, proximity sensor.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-7, the present invention provides a technical solution: the utility model provides a non-fixed point type that underground garage used fills electric pile, as shown in fig. 1, fig. 2 and fig. 4, orbit 2 of marcing has been seted up to footstock 1 bottom, and footstock 1 inside is provided with switching-over device 3, switching-over device 3 is linked together with orbit 2 of marcing simultaneously, orbit 2 inside sets up moving mechanism 4 of marcing, and the setting of 4 lower extremes of moving mechanism is inside 5 casings, the inside left side of casing 5 is provided with grafting structure 6, and the inside right side of casing 5 is provided with

hoist mechanism

7, 5 bottoms of casing are provided with control mechanism 8, orbit 2 of marcing includes: the guide groove 21 is formed in the bottom of the top base 1, the main rail 22 and the auxiliary rail 23 are formed in the middle of the top base 1, the front end of the main rail 22 is communicated with the rear end of the auxiliary rail 23, the lower end of the main rail 22 and the lower end of the auxiliary rail 23 are communicated with the upper end of the guide groove 21, and the first racks 24 are arranged on the rear side of the main rail 22 and the right side of the auxiliary rail 23; the reversing device 3 comprises: the first chute 31 is internally and slidably connected with a turning guide block 32, the distance between the rightmost end of the turning guide block 32 and the leftmost end of the adjacent right-side turning guide block 32 is larger than the diameter of the gear 41, so that when the gear 41 stays at the rear side of the auxiliary rail 23, the first compression spring 35 pushes the turning guide block 32 to be embedded into the main rail 22, the front end and the rear end of the turning guide block 32 are arranged to be attached to the inner wall of the main rail 22, the upper side and the lower side of the middle part of the turning guide block 32 are positioned on the same horizontal plane with the upper side and the lower side of the main rail 22, the turning guide block 32 plays a role of supporting and guiding the moving direction of the gear 41, one side of the turning guide block 32 is provided with a second rack 33, the upper side of the top seat 1 is provided with a first chute 31 and a second chute 34, the lower ends of the first chute 31 and the second chute 34 are communicated with the upper end of the main rail 22 and the upper, the first compression spring 35 is arranged at the outer side of the first electromagnetic switch 36, the second electromagnetic switch 38, the proximity sensor 83, the stepping motor 44, the control panel 81 and the signal processor 82 are electrically connected, the proximity sensor 83 monitors position information, an instruction is input through the control panel 81, the signal processor 82 is convenient for controlling the operation of the first electromagnetic switch 36, the second electromagnetic switch 38 and the stepping motor 44 according to the instruction, the straight guide block 39 is connected in the second chute 34 in a sliding manner, the second compression spring 37 and the second electromagnetic switch 38 are arranged between the upper end of the straight guide block 39 and the upper end of the second chute 34, the second compression spring 37 is arranged at the outer side of the second electromagnetic switch 38, the left end and the right end of the straight guide block 39 are attached to the inner wall of the auxiliary rail 23, and the upper side and the lower side of the middle part of the straight guide block 39 and the upper side and the lower side of the auxiliary rail 23 are positioned on the same horizontal plane, it is convenient for the rectilinear guide block 39 to guide and support the movement of the gear 41.

As shown in fig. 2, 4 and 6, the moving mechanism 4 includes; a plurality of gears 41 are arranged, the outer end of each gear 41 is attached to the inside of the guide groove 21, so that the gears 41 can slide along the guide groove 21 conveniently, three gears 41 and three auxiliary rails 23 are arranged, the gears 41 and the auxiliary rails 23 are arranged correspondingly, the gears 41 move into the auxiliary rails 23 to give way to the main rails 22, so that another group of gears 41 can move along the main rails 22 conveniently, the outer ends of the gears 41 are meshed with the first racks 24 or the second racks 33, balls 42 are rotatably connected to the bottoms of the gears 41, the lower ends of the balls 42 are attached to the lower sides of the main rails 22 or the lower sides of the auxiliary rails 23, the balls 42 are distributed in an annular array shape by taking the central line of the gear 41 as the center, the balls 42 play a role of reducing the friction force between the gears 41 and the main rails 22, so that the gears 41 slide more smoothly, the upper ends of the gears 41 are arranged in the, the middle part of the shell 5 is provided with a stepping motor 44, and the upper end of the stepping motor 44 is connected with the lower end of the rightmost gear 41.

As shown in fig. 3 and 4, the plug structure 6 includes: incoming line terminal 61, it is the metal joint who runs through the casing 5 front side, incoming line terminal 61 front end and the electric connection of outgoing line terminal 62 rear end, and outgoing line terminal 62 sets up in footstock 1 front side, incoming line terminal 61 rear end and the left side electric connection of charging components and parts 63 front end, and charging components and parts 63 sets up in the inside left side of casing 5, charging components and parts 63 front end right side and electric slip ring stator 64 electric connection, and electric slip ring stator 64 front end and electric slip ring rotor 65 electric connection.

As shown in fig. 3, 4 and 5, the hoisting mechanism 7 includes: a fixing member 71 which is disc-shaped, the outer side of the fixing member 71 is rotatably connected with the rear end of the wind-up roll 72, an electric slip ring stator 64 is arranged inside the fixed piece 71, an electric slip ring rotor 65 is arranged inside the winding roller 72, a cable 73 is fixed on the outer side of the front end of the winding roller 72, meanwhile, one end of a cable 73 penetrates through the winding roller 72 to be electrically connected with the electric slip ring rotor 65, the other end of the winding roller 72 is provided with a charging gun 74, the right side of the shell 5 is provided with a driving motor 75, and the front end of the driving motor 75 is connected with the outer side of the rear end of the wind-up roll 72 through a synchronous belt 76, the right front side of the shell 5 is provided with a protective shell 77, and the bottom of the protective shell 77 is provided with an opening 78, the central line of the opening 78 and the central line of the charging gun 74 are positioned on the same vertical line, so that when the winding roller 72 rotates to pay out the cable 73, charging gun 74 exits shield 77 through opening 78, and wind-up roll 72 and drive motor 75 are disposed inside shield 77.

As shown in fig. 1 and 7, the control mechanism 8 includes: a control panel 81 which is a box body disposed below the housing 5, wherein a signal processor 82 is disposed inside the control panel 81, and a proximity sensor 83 is disposed inside the main rail 22.

The working principle is as follows: when the non-fixed point type charging pile for the underground garage is used, the model of the proximity sensor 83 is E2A-M12LS04-M1, the model of the signal processor 82 is TMS320F28016PZA, an external power supply is connected, an instruction is input through the control panel 81, the signal processor 82 starts the stepping motor 44, the stepping motor 44 drives the gear 41 to rotate through the chain 43, the gear 41 moves along the guide groove 21 through matching with the first rack 24, the ball 42 at the bottom of the gear 41 enables the gear 41 to move more smoothly, when the gear 41 passes through the auxiliary rail 23 of other groups, the second electromagnetic switch 38 is released, the second compression spring 37 pushes the straight guide block 39 to be embedded into the auxiliary rail 23, the straight guide block 39 drives the moving direction of the gear 41 to enable the gear 41 to move along the main rail 22 until the gear 41 monitored by the proximity sensor 83 moves to a specified position along the main rail 22, the first electromagnetic switch 36 is released, the first compression spring 35 pushes the turning guide block 32 to be embedded into the main track 22, the stepping motor 44 is continuously rotated, the turning guide block 32 and the second rack 33 are matched with the moving direction of the guide gear 41, the gear 41 is moved to the inside of the auxiliary track 23, meanwhile, the wire inlet terminal 61 is embedded into the wire outlet terminal 62 to complete electrical connection, a charging pile is conveniently arranged on the advancing track 2 according to actual use requirements, the project of repeatedly laying the charging pile is reduced, the charging pile is more practical in use, the charging pile is lifted in the half air, the occupation on the ground is reduced, the use cost is reduced, the driving motor 75 is started, the driving motor 75 drives the winding roller 72 to rotate through the synchronous belt 76, the winding roller 72 rotates outside the fixing piece 71, the cable 73 is simultaneously discharged, the charging gun 74 at one end of the cable 73 leaves the protective shell 77 through the opening 78, and the charging gun 74 is manually connected with, the other end of the cable 73 is electrically connected with the electrical slip ring stator 64 through the electrical slip ring rotor 65, so that the charging gun 74 is electrically connected with the charging component 63, the workload of manually carrying and winding the cable 73 is reduced, the use is more convenient, and all the work is completed.

The terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for simplicity of description only and are not intended to indicate or imply that the referenced devices or elements must be in a particular orientation, constructed and operative in a particular orientation, and are not to be considered limiting of the claimed invention.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a non-fixed point type that underground garage used fills electric pile, includes footstock (1), its characterized in that: track (2) of marcing have been seted up to footstock (1) bottom, and footstock (1) inside is provided with switching-over device (3), and switching-over device (3) are linked together with track (2) of marcing simultaneously, track (2) inside of marcing sets up moving mechanism (4), and moving mechanism (4) lower extreme setting is inside casing (5), the inside left side of casing (5) is provided with grafting structure (6), and the inside right side of casing (5) is provided with hoisting mechanism (7), casing (5) bottom is provided with control mechanism (8), track (2) of marcing includes:

the guide rail structure comprises a guide groove (21) which is arranged at the bottom of a top seat (1), a main rail (22) and an auxiliary rail (23) are arranged in the middle of the top seat (1), the front end of the main rail (22) is communicated with the rear end of the auxiliary rail (23), the lower end of the main rail (22) and the lower end of the auxiliary rail (23) are communicated with the upper end of the guide groove (21), and first racks (24) are arranged on the rear side of the main rail (22) and the right side of the auxiliary rail (23);

the commutation device (3) comprises:

a first chute (31) which is connected with a turning guide block (32) in a sliding manner, a second rack (33) is arranged on one side of the turning guide block (32), a first chute (31) and a second chute (34) are arranged on the upper side of the top seat (1), the lower end of the first chute (31) and the lower end of the second chute (34) are communicated with the upper end of the main track (22) and the upper end of the auxiliary track (23), a first compression spring (35) and a first electromagnetic switch (36) are arranged between the upper end of the first chute (31) and the turning guide block (32), the first compression spring (35) is arranged on the outer side of the first electromagnetic switch (36), a straight guide block (39) is connected in the second chute (34) in a sliding manner, and a second compression spring (37) and a second electromagnetic switch (38) are arranged between the upper end of the straight guide block (39) and the upper end of the second chute (34), meanwhile, a second compression spring (37) is arranged outside the second electromagnetic switch (38);

the moving mechanism (4) comprises;

the number of the gears (41) is multiple, the outer end of each gear (41) is meshed with the first rack (24) or the second rack (33), the bottom of each gear (41) is rotatably connected with a ball (42), the lower end of each ball (42) is attached to the lower side of the main track (22) or the lower side of the auxiliary track (23), the upper end of each gear (41) is arranged inside the travelling track (2), the lower end of each gear (41) penetrates through the shell (5) to be meshed with the chain (43), the middle of the shell (5) is provided with a stepping motor (44), and the upper end of each stepping motor (44) is connected with the lower end of the rightmost gear (41);

the plug-in structure (6) comprises:

the charging device comprises a wire inlet terminal (61), a wire outlet terminal (62), a top seat (1), a charging component (63), an electric slip ring stator (64), an electric slip ring rotor (65), a wire inlet terminal (61), a wire outlet terminal (62), a wire inlet terminal (61), a charging component (63), a metal connector and a metal connector, wherein the metal connector penetrates through the front side of the shell (5);

the hoisting mechanism (7) comprises:

a fixing piece (71) which is in a disc shape, the outer side of the fixing piece (71) is rotationally connected with the rear end of the winding roller (72), an electric slip ring stator (64) is arranged in the fixed piece (71), an electric slip ring rotor (65) is arranged in the winding roller (72), a cable (73) is fixed on the outer side of the front end of the winding roller (72), meanwhile, one end of a cable (73) penetrates through the winding roller (72) to be electrically connected with the electric slip ring rotor (65), a charging gun (74) is arranged at the other end of the winding roller (72), a driving motor (75) is arranged at the right side of the shell (5), the front end of the driving motor (75) is connected with the outer side of the rear end of the winding roller (72) through a synchronous belt (76), a protective shell (77) is arranged on the right front side of the shell (5), an opening (78) is formed in the bottom of the protective shell (77), and the winding roller (72) and the driving motor (75) are arranged inside the protective shell (77);

the control mechanism (8) includes:

the control panel (81) is a box body arranged below the shell (5), a signal processor (82) is arranged inside the control panel (81), and a proximity sensor (83) is arranged inside the main track (22).

2. The non-fixed-point charging pile for the underground garage according to claim 1, wherein: the distance between the rightmost end of the turning guide block (32) and the leftmost end of the adjacent right turning guide block (32) is larger than the diameter of the gear (41).

3. The non-fixed-point charging pile for the underground garage according to claim 1, wherein: the front end and the rear end of the turning guide block (32) are attached to the inner wall of the main track (22), and the upper side and the lower side of the middle of the turning guide block (32) and the upper side and the lower side of the main track (22) are located on the same horizontal plane.

4. The non-fixed-point charging pile for the underground garage according to claim 1, wherein: the first electromagnetic switch (36), the second electromagnetic switch (38), the proximity sensor (83), the stepping motor (44), the control panel (81) and the signal processor (82) are electrically connected.

5. The non-fixed-point charging pile for the underground garage according to claim 1, wherein: the inner wall of the auxiliary rail (23) is attached to the left end and the right end of the straight guide block (39), and the upper side and the lower side of the middle of the straight guide block (39) and the upper side and the lower side of the auxiliary rail (23) are located on the same horizontal plane.

6. The non-fixed-point charging pile for the underground garage according to claim 1, wherein: the outer end of the gear (41) is attached to the inner part of the guide groove (21).

7. The non-fixed-point charging pile for the underground garage according to claim 1, wherein: the gear (41) and the auxiliary track (23) are all provided with three, and the gear (41) and the auxiliary track (23) are correspondingly arranged.

8. The non-fixed-point charging pile for the underground garage according to claim 1, wherein: the balls (42) are distributed in an annular array shape by taking the central line of the gear (41) as the center.

9. The non-fixed-point charging pile for the underground garage according to claim 1, wherein: the opening (78) centerline is in the same vertical line as the charging gun (74) centerline.