阅读说明：本技术 一种用于移动充电桩的运输架、运输车和装卸方法 (Transportation frame, transportation vehicle and loading and unloading method for mobile charging pile ) 是由 魏文深 于 2021-09-27 设计创作，主要内容包括：公开了一种用于移动充电桩的运输架,包括底座,其上设置有至少一对滑槽；可伸缩框架,包括固定框体、移动组件和驱动组件,固定框体设置于底座的一端,固定框体包括两端的固定板及设置于其间的导向杆,移动组件可位移地套设于导向杆上,移动组件包括活动套设于导向杆上的移动板及设置于移动板上的驱动杆,驱动杆穿过固定板延伸至底座的另一端,驱动组件与驱动杆连接；起吊装置,设置于底座的另一端,且与驱动杆固定连接,起吊装置底部至少设置有两对轮组,轮组与滑槽配合,起吊装置设有可伸缩的支撑机构,且底部设有轮组。还提出了一种运输车和装卸方法,利用上述方案可以保证移动充电桩装卸过程中的框架结构的稳定性,提高运输架的使用寿命。(The utility model discloses a transportation frame for moving a charging pile, which comprises a base, a movable support and a movable support, wherein at least one pair of sliding chutes are arranged on the base; the telescopic frame comprises a fixed frame body, a moving assembly and a driving assembly, wherein the fixed frame body is arranged at one end of the base and comprises fixed plates at two ends and a guide rod arranged between the fixed plate and the guide rod; the lifting device is arranged at the other end of the base and is fixedly connected with the driving rod, at least two wheel sets are arranged at the bottom of the lifting device, the wheel sets are matched with the sliding groove, the lifting device is provided with a telescopic supporting mechanism, and the bottom of the lifting device is provided with wheel sets. The technical scheme is utilized to ensure the stability of the frame structure in the loading and unloading process of the movable charging pile and prolong the service life of the transportation frame.)

1. A transportation frame for mobile charging pile, comprising:

the base is provided with at least one pair of sliding grooves;

the telescopic frame comprises a fixed frame body, a moving assembly and a driving assembly, wherein the fixed frame body is arranged at one end of the base, the fixed frame body comprises fixed plates arranged at two ends and a guide rod arranged between the fixed plates, the moving assembly is movably sleeved on the guide rod, the moving assembly comprises a moving plate movably sleeved on the guide rod and a driving rod arranged on the moving plate, the driving rod penetrates through the fixed plates and extends to the other end of the base, and the driving assembly drives the driving rod to enable the moving assembly to move on the guide rod;

the lifting device is arranged at the other end of the base, which is adjacent to the telescopic frame, and is fixedly connected with the driving rod, the bottom of the lifting device is at least provided with two pairs of wheel sets, the wheel sets are matched with the sliding groove, the lifting device is provided with a telescopic supporting mechanism, and the bottom of the supporting mechanism is provided with wheel sets.

2. The transportation rack for the mobile charging pile according to claim 1, further comprising a control module, wherein the control module is used for controlling the driving assembly to stop operating after the wheel set of the supporting mechanism leaves the chute for a predetermined distance, driving the supporting mechanism to extend out and contact with the ground, and then continuing to control the driving assembly to operate until the hoisting device is completely separated from the base; or the driving assembly is controlled to stop after the wheel set of the supporting mechanism returns to a preset distance away from the sliding chute, and the driving assembly is continuously controlled to operate after the supporting mechanism is driven to reset until the lifting device returns to the base.

3. The transportation frame for the mobile charging pile according to claim 1, wherein the moving assembly further comprises a sliding rod arranged in parallel with the driving rod, one end of the sliding rod is fixed to the moving plate, and the other end of the sliding rod penetrates through the fixed plate to be fixedly connected with the lifting device.

4. The transportation rack for mobile charging piles according to claim 3, wherein the guide bar, the slide bar and the driving bar are engaged with the fixed plate or the mobile plate through a plurality of sleeves.

5. The transportation rack for the mobile charging pile according to claim 4, wherein the guide rod is fixedly arranged on the fixed plate through a sleeve, one end of the slide rod and one end of the driving rod are fixedly arranged on the movable plate through a sleeve, and the other end of the slide rod and the driving rod slidably penetrate through the sleeve arranged on the fixed plate.

6. The transportation rack for the mobile charging pile according to claim 4, wherein the guide rod, the slide rod and the driving rod are all hollow structures.

7. The transportation rack for the mobile charging pile according to claim 6, wherein the driving assembly comprises a motor and a screw rod, the motor is fixedly arranged on the fixed frame, the screw rod penetrates through the fixed plate and the moving plate and extends to the inside of the driving rod, and a screw rod nut matched with the screw rod is fixedly arranged on a sleeve fixed on the driving rod.

8. The transportation rack for the mobile charging pile according to claim 3, wherein the driving rod and the sliding rod penetrate through one end of the lifting device, extend to the other end of the lifting device, and are fixedly matched through clamping bands fixed at two ends of the lifting device.

9. The transportation frame for the mobile charging pile according to claim 1, wherein a baffle is detachably arranged between the movable plates on two sides and between the two fixed plates on one side of the lifting device, a second sliding groove matched with a roller at the bottom of the mobile charging pile is further arranged on the base, and the baffle pushes the mobile charging pile to move in the second sliding groove when the moving assembly moves.

10. A carriage for mobile charging poles, characterized in that it comprises a carriage according to any one of claims 1 to 9, placed in the rear compartment of a vehicle.

11. A method of handling, characterised in that, using a transport rack according to any one of claims 1-9, the method comprises:

the driving assembly drives the moving assembly to push the lifting device hoisted with the mobile charging pile to move towards the outside of the base;

after the supporting mechanism on the lifting device leaves the sliding chute for a preset distance, the driving assembly stops operating and drives the bottom wheel set of the supporting mechanism to stretch out to be in contact with the ground, the driving assembly continues to operate until the lifting device is completely separated from the base, the lifting device puts down the mobile charging pile, and the discharging of the mobile charging pile is completed;

the lifting device lifts the mobile charging pile, the driving assembly drives the mobile assembly to reset, after the supporting mechanism on the lifting device returns to a preset distance, the driving assembly stops operating, the bottom wheel set of the supporting mechanism is driven to reset, the driving assembly continues to operate until the lifting device completely returns to the base, and the mobile charging pile is loaded.

12. A method according to claim 11, wherein said predetermined distance is such that the centre of gravity of said lifting means is within the support range of said base.

Technical Field

The invention relates to the field of transportation equipment, in particular to a transportation frame, a transportation vehicle and a loading and unloading method for a mobile charging pile.

Background

Along with the very fast development of new energy automobile, new energy automobile accounts for the proportion of the total number of car more and more high, to new energy automobile's demand of charging, a lot of removal electric pile that has been introduced on the market at present, but current removal electric pile that fills is bulky, and weight is big, does not have special instrument transport, and handling cost is high, can't promote on a large scale, and the utilization ratio is low, and some self possess auxiliary power system, but also can only remove in the small scale, inconvenient long distance dispatch delivery.

Chinese patent with publication number CN211166625U discloses a transportation frame and power transmission car for mobile charging stake, the transportation frame includes the inside casing, the frame, X axle drive assembly and Y axle drive assembly, one of inside casing and frame is provided with the toper guide rail, be provided with direction subassembly on the inside casing or the frame that correspond with the toper guide rail, direction subassembly includes guide way and leading wheel, the toper guide rail is coupled with direction subassembly, X axle drive assembly installs in the opposite one side of moving direction of frame and inside casing, Y axle drive assembly sets up in the top of inside casing. Still provide a power transmission car, including foretell transportation frame, positioner and control system, positioner adopts GPS system or big dipper navigation, and control system is used for controlling foretell transportation frame's removal and operation, and through the cooperation of toper guide rail and leading wheel, the realization that can be more steady fills the loading and unloading of electric pile to the removal to can not produce huge noise.

But be the pull formula structure through similar matchbox between the interior frame of above-mentioned transport frame and power transmission car, in the loading and unloading process of filling electric pile, because the self weight of electric pile is too big in the removal, when filling electric pile and keeping away from the frame along with the inside casing, the inside casing can be filled electric pile's dead weight in the removal and produce huge interact power because of between pole principle and the frame, interior frame can produce permanent deformation in the long time, unable normal operation, because interior frame adopts the angle steel welding to form, it is also troublesome relatively to make, it is also very inconvenient that the installation or maintenance are changed.

Disclosure of Invention

In order to solve the problems that in a movable charging pile transportation frame in the prior art, the frame is deformed due to stress of a frame structure caused by the weight of a movable charging pile, and the service life of the transportation frame is influenced, the invention provides a transportation frame, a transportation vehicle and a loading and unloading method for the movable charging pile, and the transportation frame, the transportation vehicle and the loading and unloading method are used for solving the technical problems.

According to a first aspect of the present invention, a transportation rack for mobile charging poles is proposed, comprising:

the base is provided with at least one pair of sliding grooves;

the telescopic frame comprises a fixed frame body, a moving assembly and a driving assembly, wherein the fixed frame body is arranged at one end of the base and comprises fixed plates arranged at two ends and guide rods arranged between the fixed plates, the moving assembly is movably sleeved on the guide rods and comprises a moving plate movably sleeved on the guide rods and driving rods arranged on the moving plate, the driving rods penetrate through the fixed plates and extend to the other end of the base, and the driving assembly drives the driving rods to enable the moving assembly to move on the guide rods;

the lifting device is arranged at the other end of the base adjacent to the telescopic frame and is fixedly connected with the driving rod, at least two pairs of wheel sets are arranged at the bottom of the lifting device, the wheel sets are matched with the sliding grooves, the telescopic supporting mechanism is arranged on the lifting device, and the wheel sets are arranged at the bottom of the supporting mechanism.

Preferably, the lifting device further comprises a control module, wherein the control module is used for controlling the driving assembly to stop operating after the wheel set of the supporting mechanism leaves the chute for a preset distance, driving the supporting mechanism to extend out and contact the ground, and then continuously controlling the driving assembly to operate until the lifting device is completely separated from the base; or the driving assembly is controlled to stop after the wheel set of the supporting mechanism returns to a preset distance away from the sliding chute, and the driving assembly is continuously controlled to operate after the supporting mechanism is driven to reset until the lifting device returns to the base. The control module can ensure that the hoisting device cannot deform the whole frame structure due to suspension generated moment in the loading and unloading process.

Preferably, the moving assembly further comprises a sliding rod arranged in parallel with the driving rod, one end of the sliding rod is fixed to the moving plate, and the other end of the sliding rod penetrates through the fixed plate and is fixedly connected with the lifting device. The stability of the moving assembly can be increased by virtue of the arrangement of the sliding rod.

Further preferably, the guide bar, the slide bar and the drive bar are coupled to the fixed plate or the moving plate through a plurality of bushings. The guide rod, the slide rod and the driving rod can be conveniently connected and matched with the fixed plate or the movable plate by utilizing the sleeve.

Further preferably, the guide rod is fixedly arranged on the fixed plate through a sleeve, one end of the slide rod and one end of the driving rod are fixedly arranged on the movable plate through the sleeve, and the other end of the slide rod and the other end of the driving rod slidably penetrate through the sleeve arranged on the fixed plate.

Further preferably, the guide rod, the slide rod and the driving rod are all hollow structures. On the one hand, the overall weight can be reduced by means of the hollow structure, and on the other hand, the arrangement of the control lines can also be carried out by means of the hollow structure.

Further preferably, the driving assembly comprises a motor and a screw rod, the motor is fixedly arranged on the fixed frame, the screw rod penetrates through the fixed plate and the moving plate and extends to the inside of the driving rod, and a screw rod nut matched with the screw rod is fixedly arranged on a sleeve fixed by the driving rod. The displacement control of the lifting device can be conveniently realized by utilizing a screw rod transmission mode.

Preferably, the driving rod and the sliding rod penetrate through one end of the lifting device, extend to the other end of the lifting device, and are fixedly matched through the hoops fixed at the two ends of the lifting device. The dismounting and maintenance of the hoisting device are convenient to realize by means of the arrangement.

Preferably, detachably be provided with the baffle between the movable plate of both sides and between two fixed plates of hoisting accessory one side, still be provided with on the base with the removal fill electric pile bottom gyro wheel complex second spout, the baffle promotes when the removal subassembly removes to remove and fills electric pile displacement in the second spout. Can promote the removal through this setting at the removal subassembly removal in-process and fill electric pile and remove to the control removes the operating position who charges and reach hoisting accessory.

According to a second aspect of the invention, a transport vehicle for moving a charging pile is provided, comprising a transport frame as described above, the transport frame being disposed in a rear compartment of the vehicle.

According to a third aspect of the invention, there is provided a loading and unloading method, using a transport rack as described above, the method comprising:

the driving assembly drives the moving assembly to push the lifting device with the mobile charging pile to move towards the outside of the base;

after the supporting mechanism on the lifting device leaves the chute for a preset distance, the driving assembly stops operating and drives the bottom wheel set of the supporting mechanism to stretch out to be in contact with the ground, the driving assembly continues operating until the lifting device is completely separated from the base, the lifting device puts down the mobile charging pile, and the mobile charging pile is put down;

the lifting device lifts the movable charging pile, the driving assembly drives the movable assembly to reset, after the supporting mechanism on the lifting device returns to a preset distance, the driving assembly stops operating, after the bottom wheel set of the supporting mechanism resets, the driving assembly continues operating until the lifting device completely returns to the base, and the movable charging pile is loaded.

Preferably, the predetermined distance satisfies that the center of gravity of the lifting device is located within the support range of the base.

The invention provides a transport frame for moving a charging pile, which is a fixed frame formed by building a fixed plate and a guide rod, so that a moving assembly consisting of a moving plate, a driving rod and a sliding rod can move on the fixed frame, and further a lifting device is driven to extend out or retract, and further the wheel set below the lifting device is utilized, and the transport frame is enabled to always keep the gravity center of the lifting device within the supporting range of the transport frame in the loading and unloading process through the matching of a supporting mechanism, so that the problem that the transport frame cannot normally operate due to the fact that the lifting device is possibly suspended to form a cantilever structure in the moving process to cause permanent deformation of each rod piece in the frame is solved. Meanwhile, the modular structure and the matching mode of the components can facilitate the manufacture, installation or maintenance.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is an overall structural view of a transportation frame for a mobile charging pile according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a main body frame of a transportation rack for the mobile charging pile according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a lifting device for moving a transportation frame of a charging pile according to an embodiment of the present invention;

FIG. 4 is a schematic structural view of a transporter in accordance with an embodiment of the invention;

FIG. 5 is a flow diagram of a loading and unloading method according to one embodiment of the invention;

fig. 6a-d are schematic views of a loading and unloading process according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, 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.

Fig. 1 is a general structural view illustrating a transportation frame for a mobile charging pile according to an embodiment of the present invention, as shown in fig. 1, the transportation frame for moving the charging pile comprises a base 100, a fixed frame 200, a moving assembly 300, a lifting device 400 and a supporting mechanism 500, wherein the fixed frame 200 and the lifting device 400 are arranged on the base 100 in parallel, the fixed frame 200 is fixed on the base 100, the moving assembly 300 is slidably arranged on the fixed frame 200 and connected with the lifting device 400, thereby pushing the lifting device 400 to move in the horizontal direction, the supporting mechanism 500 is arranged at one end of the lifting device 400, the lifting device 400 is used for forming support with the ground when being partially displaced out of the base 100, and the deformation of the whole frame caused by the acting force of the lifting device 400 on the movable assembly 300 and the fixed frame 200 when the electric pile is filled in self weight or lifting movement is avoided, so that the service life of the transportation frame is not influenced.

With continuing reference to fig. 2, fig. 2 shows a schematic structural diagram of a main frame of a transportation rack for mobile charging piles according to an embodiment of the present invention, as shown in fig. 2, the main frame includes a fixed frame 200 fixedly disposed on a base 100 and a mobile assembly 300 movably disposed on the fixed frame 200, two pairs of sliding grooves are disposed in parallel on the base 100 and respectively used as running rails for moving the charging piles and wheel sets at the bottom of a lifting device 400, the fixed frame 200 includes two pairs of fixed plates 210 fixed on the base 100 and two guide rods 220 disposed in parallel between the two fixed plates 210, 210 'on the same side, one end of the base 100 is connected to the two fixed plates 210, 210' at the end through a connecting plate for disposing a first driving assembly and forming a fixed frame structure, the first driving assembly includes a first motor 230, a first steering mechanism 240 and a first speed reducer 250, the first motor 230 transmits power to the first reducers 250 on both sides, respectively, through the first steering mechanism 240.

In a specific embodiment, the moving assembly 200 includes a moving plate 310, a driving rod 320 and a sliding rod 330, which are disposed at two sides corresponding to the fixed plate 210, wherein the moving plate 310 is provided with a guide hole for matching with the guide rod 220, the moving plate 310 is movably disposed on the guide rod 220 between the two fixed plates 210, 210 ', the driving rod 320 is fixedly disposed at the middle of the moving plate 310, the two sliding rods 330 are symmetrically disposed above and below the driving rod 320 on the moving plate 310, penetrate through the other end of the fixed plate 210' and extend to the outside of the fixed frame 200, so as to form a planar displacement structure to maintain the stability of the moving assembly. The driving rod 320 and the sliding rod 330 extending to the outside of the fixed frame 200 are fixedly matched with the lifting device and synchronously move with the moving assembly.

In a specific embodiment, the first driving assembly is driven by a lead screw through the first speed reducer 250, the lead screw passes through the fixed plate 210 and the moving plate 310 and extends into the driving rod 330, a lead screw nut is fixedly disposed at the head of the driving rod 330, and the driving rod 330 is driven by the lead screw to reciprocate to drive the moving assembly 300 and further drive the lifting device 400 to move.

In a specific embodiment, the fixed plate 210 and the moving plate 310 are of the same structure, and the holes formed on the fixed plate and the moving plate are identical, wherein the upper end and the lower end are used for fixing the guide rods, the middle is used for fixing or penetrating the sliding rods or the driving rods, and holes for facilitating transportation, loading and unloading of a forklift are reserved.

In the specific embodiment, the driving rod 330, the guiding rod 220 and the sliding rod 330 are coupled to the fixed plate 210 or the moving plate 310 through a sleeve, one end of the sleeve has a radial extension for being fixed through the fixed plate 210 or the moving plate 310, and in a preferred embodiment, the screw nut is fixed on the sleeve to drive the moving assembly through the screw.

In a specific embodiment, the driving rod 330, the guide rod 220 and the sliding rod 330 have the same structure and are all hollow structures, the hollow structure of the driving rod 330 can be used for accommodating a screw rod, and the hollow structures of the guide rod 220 and the sliding rod 330 can be used for passing through a control circuit, so that the circuit exposure to the outside to influence the operation of the transportation frame is reduced, meanwhile, the weight of the whole frame is reduced, and the production and maintenance are facilitated.

Fig. 3 shows a schematic structural diagram of a lifting device for moving a transportation frame of a charging pile according to a specific embodiment of the present invention, as shown in fig. 3, the lifting device includes a lifting frame 410, a second driving assembly is disposed on the top of the lifting frame 410, the second driving assembly includes a second motor 420, a second steering mechanism 430, and a second reducer 440, the second motor 420 transmits power to the second reducers 440 on both sides through the second steering mechanism 430, the second reducer 440 drives a screw rod 450 to rotate, and drives a hanger 460 provided with a screw nut to move up and down, and two pairs of guide rods 470 are disposed at both ends of the hanger 460, respectively, for ensuring stability of the hanger 460 during lifting. A pair of lifting hooks 461 is arranged on the lifting frame 460, and the lifting hooks 461 are adjustably arranged in the sliding grooves on the lifting frame 460, so as to fix the mobile charging pile.

In a specific embodiment, a hole matched with the driving rod 330 and the sliding rod 330 is formed in one side of the lifting frame 410 adjacent to the fixed frame 200, the driving rod 330 and the sliding rod 330 pass through the hole to the other end of the lifting frame 410 and are fixedly matched through a clamp 411, so that the driving rod 330 and the sliding rod 330 can drive the lifting device 400 to move, and the lifting device 400 can be conveniently assembled and disassembled for maintenance.

In a specific embodiment, the supporting mechanism 500 is disposed on two sides of one end of the lifting device 400 far away from the fixed frame, and is controlled by two sets of driving assemblies disposed on the lifting frame 410, respectively, and includes a third motor and a third speed reducer, and the third speed reducer controls the lower portion of the supporting leg inside the supporting mechanism 500 through a screw rod until the bottom wheel set 510 abuts against the ground to trigger the internal sensor, and then stops.

It should be appreciated that the first, second and third drive assemblies may be driven by other means than a lead screw drive, such as hydraulic, pneumatic, or by using an electric push rod, and the technical effects of the present invention may be achieved.

In a specific embodiment, at least one pair of wheel sets 490 is disposed at the bottom of the lifting frame 410, and the center of the lifting device 400 is located between the pair of wheel sets and the horizontal distance of the wheel sets 510, so as to control the center of gravity of the lifting device, and ensure that at least one pair of wheel sets still exist to support the base 100 during the movement of the lifting device 400 during the loading and unloading process, thereby avoiding the deformation of the frame due to stress.

In a specific embodiment, a baffle is detachably arranged between the connecting plates 310 on the two sides and used for withdrawing the mobile charging pile in the fixed frame 200 to the lower side of the lifting device 400 when the mobile assembly moves, and a baffle is also detachably arranged at one end of the lifting frame 410 and can push the mobile charging pile back into the fixed frame 200 when the lifting device 400 is retracted, so that the loading and unloading tasks of the multi-pile body are realized. Two inboard departments of lifting by crane frame 410 bottom are provided with a plurality of leading wheels 480, and the location removal of being convenient for fills electric pile, prevents to remove and fills electric pile rocking at the in-process of lifting by crane.

In a specific embodiment, the transport carrier is provided with a control module for controlling the first driving assembly to push the lifting device 400 to move, when the wheel set of the supporting mechanism leaves the chute for a predetermined distance, the operation of the first driving assembly is stopped, then the third driving assembly is driven to control the supporting mechanism 500 to extend out and contact with the ground, and then the first driving assembly is continuously controlled to operate until the lifting device 400 is completely separated from the base 100; or controlling the first driving assembly to withdraw the lifting device 400, stopping the first driving assembly after the wheel set 510 of the extended leg of the supporting mechanism 500 returns to a predetermined distance from the sliding chute, driving the leg of the supporting mechanism 500 to withdraw and reset, and continuing to control the first driving assembly to operate until the lifting device 400 returns to the base 100. The above-mentioned predetermined distance satisfies that the gravity center of the lifting device 400 is located within the supporting range of the base 100 when the predetermined distance is reached, and the force is acted by the lifting frame wheel set 490 and the supporting leg wheel set 510, so as to avoid the permanent deformation of the frame caused by the bending moment generated by the formation of the cantilever structure, and the influence on the service life of the transportation frame is avoided.

Fig. 4 is a schematic view illustrating an assembling and disassembling process according to an embodiment of the present invention, as shown in fig. 4, the transportation vehicle includes the transportation frame for moving the charging pile, the transportation frame is disposed at the rear of the vehicle, and the lifting device 400 is located in a range between the front and rear wheels, the base 100 is fixed on the vehicle frame, the top of the fixed frame 200 is fixed to the roof of the vehicle to increase stability of the overall structure, the moving assembly 300 can push the lifting device 400 to move out of the vehicle body, the supporting mechanism 500 can extend the legs to abut against the ground by the bottom wheel set, a plurality of moving charging piles are carried on the transportation vehicle, and the moving charging piles are disposed on the base 100 of the transportation frame.

Fig. 5 shows a flow chart of a loading and unloading method according to an embodiment of the present invention, which utilizes the transportation rack shown in fig. 1-3 to load and unload the mobile charging pile, and specifically includes the following steps:

s201: the drive assembly drives the moving assembly to push and lift the lifting device with the movable charging pile to move towards the outside of the base.

S202: after the supporting mechanism on the lifting device leaves the chute and reaches the preset distance, the driving assembly stops operating, the bottom wheel set of the supporting mechanism is driven to stretch out to be in contact with the ground, the driving assembly continues operating until the lifting device is completely separated from the base, the lifting device puts down the mobile charging pile, and the mobile charging pile is put down. In the process, the gravity center of the lifting device is positioned in the supporting range of the base, and after the lifting device falls down to the supporting mechanism, the lifting device can not generate pressure on the frame when continuously moving outwards due to the support of the supporting mechanism, so that the service life of the transportation frame is prolonged.

S203: the lifting device lifts the movable charging pile, the driving assembly drives the movable assembly to reset, after the supporting mechanism on the lifting device returns to a preset distance, the driving assembly stops operating, after the bottom wheel set of the supporting mechanism resets, the driving assembly continues operating until the lifting device completely returns to the base, and the movable charging pile is loaded. In the recovery process, the supporting mechanism is withdrawn in advance when the supporting mechanism returns to a preset distance, so that the damage of the transportation frame caused by collision between the supporting mechanism and the base during recovery can be avoided, and meanwhile, the influence of the self weight of the lifting device on the frame can be avoided by depending on the support of the base.

With continued reference to fig. 6a-d, which show schematic views of a loading and unloading process according to a specific embodiment of the present invention, fig. 6a is an initial state diagram, at this time, the lifting apparatus 400 is located in the base 100, the moving assembly 300 is driven to push the lifting apparatus 400 to move outward, when moving to the position shown in fig. 6b, the wheel set at the bottom of the lifting apparatus 400 is still within the supporting range of the base 100, preferably, the position corresponds to the position of the rear wheel of the transportation vehicle, at this time, the lifting apparatus 400 forms a support by means of the wheel set, on one hand, the lifting apparatus is prevented from being suspended, so that the moving assembly 300 generates a large acting force on the fixed frame 200 to cause frame deformation, which results in the transportation vehicle failing to work normally, on the other hand, the gravity center of the lifting apparatus 400 is also ensured to be located near the rear wheel, and the vehicle head is prevented from tilting due to leverage. Supporting mechanism 500's landing leg stretches out and butt ground this moment, forms the support, as shown in fig. 6c, continues drive and removes subassembly 300 until hoisting accessory 400 stretches out base 100 completely, as the position shown in fig. 6d, relies on the support that supporting mechanism 500 formed this moment can guarantee the atress of overall frame, and hoisting accessory can put down the removal stake of charging, accomplishes the removal of removing the stake of charging. On the contrary, the mobile charging pile is hoisted at the position to be recovered to the position of fig. 6c to form a support, the support mechanism 500 is recovered again, as shown in fig. 6b, and then the mobile assembly 300 is continuously driven to completely recover the hoisting device 400 into the base 100, as shown in fig. 6a, so as to complete the recovery of the mobile charging pile.

This application leads to the fact the frame to warp the permanent damage that leads to the fact whole transportation frame to the atress problem that current removal fills electric pile's transportation frame exists, a main body frame who utilizes guide bar and fixed plate to form has been proposed, utilize connecting plate and actuating lever, the slide bar forms the removal subassembly, and then promote hoisting accessory and come and go the action, and further utilize hoisting accessory's focus control removal subassembly and supporting mechanism linkage cooperation, realize the stability of whole frame at handling, avoid causing the deformation of frame, the life of transportation frame has been improved, the modularization setting of each part can be unified to carry out the manufacturing simultaneously, the accuracy control is more accurate, thereby make the transportation frame further promote at the stability of handling.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.