CN213416143U

CN213416143U - Lifting device, vehicle-carrying platform and battery replacement station

Info

Publication number: CN213416143U
Application number: CN202021909811.0U
Authority: CN
Inventors: 张建平; 邹瑞; 朱明厚; 万里斌
Original assignee: Aulton New Energy Automotive Technology Co Ltd
Current assignee: Aulton New Energy Automotive Technology Co Ltd
Priority date: 2020-09-03
Filing date: 2020-09-03
Publication date: 2021-06-11
Anticipated expiration: 2030-09-03

Abstract

The utility model provides a lifting device, carry car platform and trade power station, lifting device includes lifting platform, lifting mechanism, mounting base and at least a locating part, lifting mechanism includes scissor-like structure's lifting assembly, lifting assembly includes alternately arranged initiative lifting member and driven lifting member, initiative lifting member and driven lifting member all include a rotation end and a slip end, a slip end of initiative lifting member and a slip end of driven lifting member are respectively with lifting platform or mounting base sliding connection; the limiting piece is located in the sliding direction of the sliding end of the driving lifting piece and/or the driven lifting piece, and the limiting piece is abutted to the sliding end of the driving lifting piece and/or the driven lifting piece. The limiting part is closer to the outer side of the lifting device relative to the driving lifting part and the driven lifting part and is used for limiting the maximum range of the sliding end of the driving lifting part and/or the driven lifting part sliding towards the outer side of the lifting device, and therefore the lowest value of the lifting platform descending is limited.

Description

Lifting device, vehicle-carrying platform and battery replacement station

Technical Field

The utility model relates to an electric automobile field, in particular to lifting device, year car platform and trade the station.

Background

With social development and scientific and technological progress, electric vehicles are more and more popular with consumers, and the current electric vehicles mainly comprise a direct-charging type electric vehicle and a quick-change type electric vehicle. In the quick-change mode, the battery pack needs to be quickly replaced by means of a battery replacement station, and a battery replacement device of the battery replacement station takes out the battery pack in the electric automobile and places the battery pack in a charging bin for charging or places the battery pack in the charging bin in the electric automobile. Specifically, after the electric automobile runs to a battery replacement position in the battery replacement station and is stably positioned, the lifting device located at the lower portion of the electric automobile lifts the electric automobile upwards to a proper height, and the battery replacement equipment in the battery replacement station runs to the lower portion of a chassis of the electric automobile to replace the battery of the electric automobile. After the replacement of the battery is finished, the battery replacement equipment is pulled out of the lower part of the electric automobile, the lifting device drives the electric automobile to reset downwards, and after the resetting is finished, the electric automobile is pulled out of the battery replacement station.

At present, a lifting device for lifting and resetting an electric automobile comprises a lifting platform for bearing the electric automobile, a scissor type lifting mechanism for lifting the lifting platform and a mounting base for fixing the lifting mechanism in a power exchanging station, wherein the upper end of the scissor type lifting mechanism is connected with the lifting platform, and the lower end of the scissor type lifting mechanism is connected with the mounting base. The scissor type lifting mechanism comprises a driving lifting piece and a driven lifting piece, and the lifting of the lifting platform is realized by changing the cross angle between the driving lifting piece and the driven lifting piece, so that the lifting and resetting of the electric automobile are realized. In order to ensure that the lifting device has enough stress strength and the stress strength of each position of the lifting device can be relatively even under the conditions of lifting and resetting, one end of the driving lifting piece and one end of the driven lifting piece are fixed in the horizontal direction, and the other end of the driving lifting piece and the other end of the driven lifting piece can slide in the horizontal direction, so that the stress strength of each position of the lifting device is adjusted, and the lifting device is prevented from being damaged due to low local stress strength.

The lifting device drives the electric automobile to reset downwards, the sliding ends of the driving lifting piece and the driven lifting piece slide outwards, the weight of the electric automobile is large, the distance between the sliding ends of the driving lifting piece and the driven lifting piece sliding outwards exceeds the preset value easily under the influence of the gravity of the electric automobile, the lifting platform is caused to fall too low easily, and therefore the sliding ends of the driving lifting piece and the driven lifting piece collide with the side wall of the mounting base easily, and the sliding ends of the driving lifting piece and the driven lifting piece are damaged.

In addition, under the condition that the chassis height of the electric automobile is enough, the battery replacement equipment can freely go in and out of the lower part of the chassis of the electric automobile without lifting the electric automobile by the lifting device, so that the battery replacement can be carried out on the electric automobile. If the lifting platform moves downwards due to the weight of the electric automobile, the lifting platform can drive the electric automobile to further descend, so that the position of a chassis of the electric automobile is relatively lowered, the battery replacement equipment further bears the weight of the electric automobile in the battery replacement process, the battery replacement process is prone to generating faults, the battery replacement equipment is prone to being damaged, and even the battery replacement equipment cannot be driven out of the lower portion of the electric automobile.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a lifting device, carry car platform and trade the station in order to overcome among the prior art lift the platform reset state down the electric automobile trade the defect that highly be less than the default easily on the position.

The utility model discloses an above-mentioned technical problem is solved through following technical scheme:

a lifting device is used for lifting an electric automobile in a power exchange station and comprises a lifting platform, a lifting mechanism and a mounting base, wherein the lifting mechanism comprises a driving part and at least one lifting assembly of a scissor structure, the lifting assembly comprises a driving lifting part and a driven lifting part which are arranged in a crossed mode, and the driving part is used for controlling the crossed angle of the driving lifting part and the driven lifting part; a rotating end of the driving lifting piece and a rotating end of the driven lifting piece are respectively and rotatably connected with the lifting platform or the mounting base, and a sliding end of the driving lifting piece and a sliding end of the driven lifting piece are respectively and slidably connected with the lifting platform or the mounting base;

the lifting device further comprises at least one limiting part, the limiting part is fixed on the lifting platform or the mounting base, the limiting part is located in the sliding direction of the sliding end of the driving lifting part and/or the driven lifting part, and the limiting part is abutted against the sliding end of the driving lifting part and/or the driven lifting part to control the sliding stroke of the sliding end of the driving lifting part and/or the driven lifting part.

In the scheme, the lifting platform is lifted by changing the cross angle between the driving lifting piece and the driven lifting piece, so that the electric automobile is lifted and reset. In the process of lifting the electric automobile by the lifting device, the sliding end of the driving lifting piece and the sliding end of the driven lifting piece both slide towards the inner side of the lifting device, and the more inwards the sliding ends slide, the higher the lifting height of the lifting platform is. In the process of resetting the electric automobile, the sliding ends of the driving lifting piece and the driven lifting piece slide towards the outer side of the lifting device, and the sliding ends slide outwards, so that the descending height of the lifting platform is lower. Because the lifting platform and the mounting base are always kept static in the horizontal direction, the limiting part fixed on the lifting platform or the mounting base is also always kept static in the horizontal direction. The limiting part is located in the sliding direction of the sliding end of the driving lifting part and/or the driven lifting part and is closer to the outer side of the lifting device relative to the driving lifting part and the driven lifting part, and the limiting part is used for limiting the maximum range of the sliding end of the driving lifting part and/or the driven lifting part sliding towards the outer side of the lifting device, so that the lowest value of the lifting platform is limited, the descending height of the lifting platform in a reset state is effectively controlled to meet a preset value, the phenomenon that the sliding end of the driving lifting part and/or the driven lifting part is too large in outward sliding distance and collides with the side wall of the lifting platform or a mounting base to cause abrasion is prevented, the running reliability of the lifting device is improved, the phenomenon that the battery replacement equipment bears the gravity of an electric automobile is further prevented, and the running reliability of the battery replacement equipment is improved.

Preferably, a roller is arranged at a sliding end of the driving lifting member and/or the driven lifting member, and the limiting member is used for abutting against the roller and blocking an outward sliding stroke of the roller.

In the scheme, the sliding mode of the sliding end is provided, the sliding of the sliding end of the driving lifting piece and/or the driven lifting piece in the horizontal direction is realized through the rolling of the rolling shaft, the friction resistance on the sliding of the sliding end is reduced, and the abrasion of the sliding end is reduced.

Preferably, a slide way is arranged on the lifting platform and/or the mounting base, the limiting part is arranged on the slide way, and the limiting part is used for limiting the maximum sliding stroke of the roller which slides outwards along the slide way.

In the scheme, the slide way is used for providing a sliding space for the rolling shaft, so that the rolling shaft can be arranged on the side wall of the driving lifting piece and/or the driven lifting piece, the friction resistance on rolling of the rolling shaft is reduced, and the abrasion of the rolling shaft is reduced.

Preferably, the lifting mechanism includes a plurality of driving lifting members and a plurality of driven lifting members, and the plurality of driving lifting members and the plurality of driven lifting members are respectively arranged along the width direction of the lifting mechanism at intervals.

In this scheme, the above-mentioned setting is convenient for distribute the atress condition of lifting platform more rationally, avoids lifting platform to appear the too big condition that leads to the life-span short of local stress.

Preferably, the limiting member is a limiting block, and the sliding ends of the driving lifting member and/or the driven lifting member are limited by the limiting block respectively.

In this scheme, initiative lifting element and driven lifting element have installation error, lie in lifting device same height and the same side initiative lifting element and/or the slip end of slip lifting element do not necessarily align completely, set up a stopper respectively in the region that is close to every slip end, can restrict the slip end of initiative lifting element or slip lifting element alone, reduce the influence that installation error brought.

Preferably, the limiting member is a cross beam, the cross beam extends along the width direction of the lifting mechanism, and the cross beam is used for simultaneously limiting the sliding ends of the plurality of driving lifting members and/or the sliding ends of the plurality of driven lifting members.

In this scheme, the locating part of crossbeam form can restrict simultaneously and lie in the same height of lifting device and with the slip end of initiative lifting member and/or slip lifting member of one side, shorten every slip end and all set up the required man-hour of locating part alone, improve packaging efficiency.

Preferably, the lifting device further comprises:

a first cross member for connecting a plurality of the driven lifters;

a second beam for connecting a plurality of the active lifting members;

the driving piece is arranged on the first cross beam, and the output end of the driving piece outputs linear reciprocating motion to drive the second cross beam, so that the intersection angle of the driving lifting piece and the driven lifting piece is changed.

In this scheme, first crossbeam and second crossbeam can improve lifting mechanism's global rigidity on the one hand, have improved lifting mechanism's stress intensity, and on the other hand can a plurality of lifting assembly's synchro control, strengthen lifting and the stability of reset in-process.

A vehicle carrying platform comprises the lifting device.

In the scheme, an application mode of the lifting device is provided.

Preferably, the vehicle carrying platform comprises two lifting devices, namely a first lifting device and a second lifting device, the first lifting device is located at the front end of the vehicle carrying platform and used for bearing the front wheels of the electric vehicle, and the second lifting device is located at the rear end of the vehicle carrying platform and used for bearing the rear wheels of the electric vehicle.

In this scheme, electric automobile's front wheel and rear wheel lift respectively through different lifting devices and reset to the bottom that trades electric equipment can get into electric automobile from electric automobile's middle zone is convenient for trade the discrepancy of electric equipment, improves and trades electric efficiency.

The power swapping station comprises the vehicle carrying platform.

In this scheme, provide a year car platform's application mode.

The utility model discloses an actively advance the effect and lie in: the utility model discloses a change the initiative and lift the piece and realize lifting platform's lift with the cross angle between the driven piece that lifts to the realization is to lifting and resetting of electric automobile. In the process of lifting the electric automobile by the lifting device, the sliding end of the driving lifting piece and the sliding end of the driven lifting piece both slide towards the inner side of the lifting device, and the more inwards the sliding ends slide, the higher the lifting height of the lifting platform is. In the process of resetting the electric automobile, the sliding ends of the driving lifting piece and the driven lifting piece slide towards the outer side of the lifting device, and the sliding ends slide outwards, so that the descending height of the lifting platform is lower. Because the lifting platform and the mounting base are always kept static in the horizontal direction, the limiting part fixed on the lifting platform or the mounting base is also always kept static in the horizontal direction. The limiting part is located in the sliding direction of the sliding end of the driving lifting part and/or the driven lifting part and is closer to the outer side of the lifting device relative to the driving lifting part and the driven lifting part, and the limiting part is used for limiting the maximum range of the sliding end of the driving lifting part and/or the driven lifting part sliding towards the outer side of the lifting device, so that the lowest value of the lifting platform is limited, the descending height of the lifting platform in a reset state is effectively controlled to meet a preset value, the phenomenon that the sliding end of the driving lifting part and/or the driven lifting part is too large in outward sliding distance and collides with the side wall of the lifting platform or a mounting base to cause abrasion is prevented, the running reliability of the lifting device is improved, the phenomenon that the battery replacement equipment bears the gravity of an electric automobile is further prevented, and the running reliability of the battery replacement equipment is improved.

Drawings

Fig. 1 is a schematic perspective view of a power conversion station according to embodiment 1 of the present invention.

Fig. 2 is the utility model discloses embodiment 1's vehicle carrying platform's spatial structure sketch map.

Fig. 3 is a schematic perspective view of a lifting device in a lifting state according to embodiment 1 of the present invention.

Fig. 4 is a schematic perspective view of fig. 3 with the lifting platform hidden.

Fig. 5 is a schematic perspective view of a lifting device in a reset state according to embodiment 1 of the present invention.

Fig. 6 is a schematic perspective view of the lifting platform shown in fig. 5 after being hidden.

Fig. 7 is a schematic perspective view of a lifting device in a reset state according to embodiment 2 of the present invention.

Description of reference numerals:

11 carry vehicle platform

12 charging chamber

13 first lifting device

14 second lifting device

21 lifting platform

22 lifting mechanism

23 mounting base

3 driving member

41 active lifting member

411 rotating end of active lifting member

412 sliding end of active lift

42 driven lift

421 rotating end of driven lifting piece

422 sliding end of driven lifting member

5 position limiting part

6 roller

7 slideway

81 first beam

82 second beam

83 connecting rod

Detailed Description

The present invention will be more clearly and completely described below with reference to the accompanying drawings.

Example 1

As shown in fig. 1, the embodiment provides a power swapping station, which includes a vehicle carrying platform 11. The battery replacing station is also provided with a charging room 12 and battery replacing equipment, the vehicle carrying platform 11 can be used for replacing a battery pack of an electric vehicle, and the charging room 12 can store batteries and provide space for charging the batteries. The battery replacing device can reciprocate between the vehicle carrying platform 11 and the charging chamber 12, and preferably, the reciprocating motion of the battery replacing device is linear reciprocating motion. The traveling direction X of the vehicle is shown by an arrow in fig. 1. The battery replacing device is used for replacing batteries of the electric automobile, when the electric automobile has a battery replacing requirement and is positioned on the automobile loading platform 11, the battery replacing device enters the bottom of the electric automobile, the batteries are disassembled, the disassembled batteries are sent back to the charging room 12, when the batteries are installed, the battery replacing device obtains full-charge batteries from the charging room 12 and enters the automobile loading platform 11 from the charging room 12, and the batteries are replaced by the electric automobile.

As shown in fig. 2, the vehicle carrying platform 11 of this embodiment includes two lifting devices, which are respectively set as a first lifting device 13 and a second lifting device 14 according to positions corresponding to the electric vehicle, the first lifting device 13 is located at the front end of the vehicle carrying platform 11 and is used for carrying front wheels of the electric vehicle, and the second lifting device 14 is located at the rear end of the vehicle carrying platform 11 and is used for carrying rear wheels of the electric vehicle. During the battery replacement process, the first lifting device 13 and the second lifting device 14 are matched with the battery replacement equipment to lift or lower the electric vehicle, so that the battery replacement equipment can enter the bottom of the electric vehicle to perform battery replacement operation (namely, battery detachment and battery installation)

As shown in fig. 3 to 6, the lifting device of the present embodiment, whether the first lifting device 13 or the second lifting device 14, includes a lifting platform 21, a lifting mechanism 22 and a mounting base 23, wherein an upper end of the lifting mechanism 22 is connected to the lifting platform 21, and a lower end of the lifting mechanism 22 is connected to the mounting base 23.

The lifting platform 21 is used for carrying an electric automobile, so that the electric automobile can be lifted together with the lifting platform 21. The lifting mechanism 22 is arranged below the lifting platform 21, and the upper end of the lifting mechanism 22 can generate vertical displacement relative to the lower end of the lifting mechanism 22, so that the lifting and resetting of the lifting platform 21 are realized, and the lifting of the electric automobile on the lifting platform 21 is further realized. The mounting base 23 is disposed below the lifting mechanism 22, and is used for fixing the lifting mechanism 22 in the power exchanging station.

The lifting mechanism 22 includes a driving member 3 and at least one lifting member for lifting or resetting the lifting platform 21, and the driving member 3 is used for driving the lifting member to lift or lower the lifting member. The lifting mechanism 22 in this embodiment employs two sets of lifting members to lift and reposition the lifting platform 21, and in other alternative embodiments, the lifting mechanism 22 may also employ one lifting member or more sets of lifting members to lift and reposition the lifting platform 21.

As shown in fig. 4, the two sets of lifting assemblies are disposed at intervals along the width direction of the lifting mechanism 22 and oppositely disposed at the front end and the rear end of the lifting platform 21, so as to more reasonably distribute the stress condition of the lifting platform 21 and avoid the short service life of the lifting platform 21 caused by excessive local stress. In other alternative embodiments, two sets of lifting assemblies may be oppositely disposed at the left and right ends of the lifting platform 21, and the same effect can be achieved. The width direction Y of the lifting mechanism 22 is shown by an arrow in fig. 4, and the width direction of the lifting mechanism 22 is parallel to the front-back direction of the lifting platform 21.

As shown in fig. 3-6, the lifting assemblies are of a scissor structure and include two driving lifting members 41 and two driven lifting members 42 arranged in a cross manner, wherein the two driving lifting members 41 of the two lifting assemblies are arranged at intervals along the width direction of the lifting mechanism 22, and the two driven lifting members 42 are arranged at intervals along the width direction of the lifting mechanism 22. The driving member 3 is used for controlling the crossing angle of the driving lifting member 41 and the driven lifting member 42 to realize the lifting of the lifting platform 21.

The projections of the driving lifting piece 41 and the driven lifting piece 42 in the front and back directions are intersected to form two groups of opposite angles, the driving piece 3 is used for controlling one group of opposite angles in the left and right directions, when the lifting platform 21 is lifted, two included angles in the group of opposite angles are gradually increased, and in the resetting process, two included angles in the group of opposite angles are gradually decreased until the initial state is reached.

The two ends of the driving lifting piece 41 and the driven lifting piece 42, which are used for connecting the lifting platform 21 or the mounting base 23, are divided into a rotating end and a sliding end, the rotating end of the driving lifting piece 41 and the rotating end of the driven lifting piece 42 are respectively rotatably connected with the lifting platform 21 or the mounting base 23, and the sliding end of the driving lifting piece 41 and the sliding end of the driven lifting piece 42 are respectively slidably connected with the lifting platform 21 or the mounting base 23.

As shown in fig. 3-4, in the present embodiment, the upper end of the driving follower is a sliding end 412 of the driving lifting member, the lower end is a rotating end 411 of the driving lifting member 41, the upper end of the driven lifting member 42 is a rotating end 421 of the driven lifting member, and the lower end of the driven lifting member 42 is a sliding end 422 of the driven lifting member. The upper end of the driving driven part is connected with the lifting platform 21 in a sliding mode, the lower end of the driving driven part is hinged to the mounting base 23, the upper end of the driven lifting part 42 is hinged to the lifting platform 21, and the lower end of the driven lifting part is connected with the mounting base 23 in a sliding mode.

In other alternative embodiments, there are other combinations of the rotating ends and sliding ends of the driving lift 41 and the driven lift 42, and specifically, there are also included: first, the upper end of the driving follower is a sliding end 412 of the driving lifting member, the lower end is a rotating end 411 of the driving lifting member 41, the upper end of the driven lifting member 42 is a sliding end 422 of the driven lifting member, and the lower end is a rotating end 421 of the driven lifting member; secondly, the upper end of the driving driven member is a rotating end 411 of the driving lifting member, the lower end is a sliding end 412 of the driving lifting member 41, the upper end of the driven lifting member 42 is a sliding end 422 of the driven lifting member, and the lower end is a rotating end 421 of the driven lifting member; third, the upper end of the driving follower is a rotating end 411 of the driving lifting member, the lower end is a sliding end 412 of the driving lifting member 41, the upper end of the driven lifting member 42 is a rotating end 421 of the driven lifting member, and the lower end is a sliding end 422 of the driven lifting member. The function of the lifting mechanism 22 can be achieved in several ways.

The driving member 3 can be a telescopic mechanism such as a cylinder, when the lifting is performed, the length of the driving member 3 is changed, so as to drive the lower end of the active lifting member 41 to rotate around the hinge joint with the mounting base 23, and the upper end of the active lifting member 41 slides on the lifting platform 21 along with the rotation of the active lifting member 41 and simultaneously drives the lifting platform 21 to lift. The lifting of the lifting platform 21 drives the upper end of the driven lifting member 42 to lift and rotate the driven lifting member 42 around the hinge joint between the upper end and the lifting platform 21, and the lower end of the driven lifting member 42 slides on the mounting base 23, thereby realizing the lifting action of the lifting mechanism 22 as a whole.

The lifting platform 21, the mounting base 23, the driving lifter 41 and the driven lifter 42 in this embodiment are preferably plate members or plate members, wherein the thickness of the plate members for forming the driving lifter 41 and the driven lifter 42 is in the front-rear direction of the lifting platform 21 and in the width direction of the lifting mechanism 22. Preferably, a reinforcing plate or a reinforcing cylinder is fixed to the part of the driving lifting member 41 and the driven lifting member 42 for connecting the lifting platform 21 and the mounting base 23.

As shown in fig. 4 and 6, the lifting device further includes two limiting members 5, the two limiting members 5 are both fixed on the mounting base 23 and located in the sliding direction of the sliding ends 422 of the two driven lifting members, respectively, the limiting members 5 are closer to the outer side of the lifting device relative to the sliding ends 422 of the driven lifting members, and the surface of the limiting members 5 facing the sliding ends 422 of the driven lifting members abuts against the sliding ends 422 of the driven lifting members, for controlling the sliding stroke of the sliding ends 422 of the driven lifting members.

In this embodiment, the lifting platform 21 is prevented from further lowering only by limiting the sliding stroke of the sliding end 422 of the driven lifting member. In other alternative embodiments, another limiting member 5 may be disposed near the sliding end 412 of the active lifting member to prevent the lifting platform 21 from further descending by limiting the sliding stroke of the sliding end 412 of the active lifting member, or the limiting member 5 may be disposed only at the sliding end 412 of the active lifting member to achieve the above effect.

Although the limiting member 5 in this embodiment is installed on the installation base 23, in other alternative embodiments, the setting position of the limiting member 5 may be adjusted according to the position of the sliding end that is desired to be limited, and may be on the lifting platform 21 or the installation base 23. The number of the limiting members 5 can be adjusted correspondingly, and the number is at least one.

Since the lifting platform 21 and the mounting base 23 are always kept stationary in the horizontal direction, the limiting member 5 fixed to the lifting platform 21 or the mounting base 23 is also always kept stationary in the horizontal direction. The limiting member 5 is located in the sliding direction of the sliding end 422 of the driving lifting member 41 and/or the driven lifting member, and is closer to the outer side of the lifting device than the driving lifting member 41 and the driven lifting member 42, the limiting member 5 is used for limiting the maximum range of the sliding end 422 of the driving lifting member 41 and/or the driven lifting member sliding to the outer side of the lifting device, when the lifting platform 21 descends to the lowest point, the limiting member 5 abuts against the corresponding movable end of the driving lifting member 41 and/or the sliding end 422 of the driven lifting member, so as to limit the lowest value of the descending of the lifting platform 21, effectively control the descending height of the lifting platform 21 in the reset state to meet the preset value, prevent the sliding distance of the sliding end 422 of the driving lifting member 41 and/or the driven lifting member sliding outwardly from being too large to collide with the side wall of the lifting platform 21 or the mounting base 23 to cause abrasion, and improve the reliability of the operation of the lifting device, further prevent to let and trade electric equipment to bear electric automobile's gravity, improve the reliability of trading electric equipment operation.

The side walls of the sliding end 412 of the driving lifting piece and the sliding end 422 of the driven lifting piece are both provided with a roller 6, the sliding ends 412 of the driving lifting piece and the sliding ends 422 of the driven lifting piece slide through the rolling of the roller 6, and the limiting piece 5 is used for abutting against the roller 6 and blocking the sliding stroke of the roller 6 to the outer side of the lifting device. The roller 6 slides with less frictional resistance, which reduces wear of the sliding ends 412 of the driving lift and the sliding ends 422 of the driven lift. In other alternative embodiments, the driving lift 41 and the driven lift 42 may adopt other structures to achieve the sliding of their sliding ends on the lifting platform 21 or the mounting base 23.

The lifting platform 21 is provided with a slideway (not shown) corresponding to the roller 6 of the driving lifting piece 41, the mounting base 23 is provided with a slideway 7 corresponding to the driven lifting piece 42, and the slideway 7 is used for providing a sliding space for the roller 6, so that the roller 6 can be arranged on the side wall of the driving lifting piece 41 and/or the driven lifting piece 42, the friction resistance on the rolling of the roller 6 is reduced, and the abrasion of the roller 6 is reduced. The limiting piece 5 is arranged on the slideway 7 and located at the position, closest to the outer side of the lifting device, of the slideway 7, and the limiting piece 5 is used for limiting the maximum sliding stroke of the roller 6 sliding outwards along the slideway 7.

As shown in fig. 5 to 6, the limiting member 5 in this embodiment is a limiting block, and the sliding ends 422 of the two driven lifting members are limited by one limiting block respectively. In other alternative embodiments, a stop may be provided at each of the sliding end 412 of the driving lift and the sliding end 422 of the driven lift, or at the sliding end 422 of the driving lift 41 and/or the driven lift where the stopping is desired.

Because the driving lifting piece 41 and the driven lifting piece 42 have errors in the installation process, the sliding ends of the driving lifting piece 41 and/or the sliding lifting piece which are positioned at the same height of the lifting device and at the same side are not necessarily completely aligned, and a limit block is respectively arranged in the area close to each sliding end, so that the sliding ends of the driving lifting piece 41 or the sliding lifting piece can be independently limited, and the influence caused by the installation errors is reduced.

As shown in fig. 4 and 6, the lifting mechanism 22 further comprises a first beam 81 and a second beam 82, wherein the first beam 81 connects the two driven lifters 42, and the second beam 82 connects the two driving lifters 41. The driving member 3 is disposed on the first beam 81, and the output end of the driving member 3 outputs a linear reciprocating motion to drive the second beam 82, so that the crossing angle of the driving lifting member 41 and the driven lifting member 42 is changed.

The active lifters 41 of the two sets of lift assemblies are disposed opposite to each other and located on the inner side, and the passive lifters 42 of the two sets of lift assemblies are located on the outer side of the corresponding active lifter 41. The first cross beam 81 integrally connects the two driven lifting pieces 42, so that the two driven lifting pieces 42 act synchronously on one hand, and the overall rigidity of the lifting mechanism 22 is improved on the other hand; preferably, the first beam 81 is connected to the lower part of the driven lifting member 42, and the second beam 82 integrally connects the two driving lifting members 41, so that the two driven lifting members 42 act synchronously, and the overall rigidity of the lifting mechanism 22 is improved; preferably, two ends of the second beam 82 are respectively connected to the middle positions of the two active lifting members 41.

The first cross member 81 and the second cross member 82 are preferably square steel, but beams of other materials and shapes may be used.

The fixed end of the driving element 3 is hinged to the first beam 81 and the output end is hinged to the second beam 82, however, in other embodiments, as an alternative, the fixed end of the driving element 3 may be hinged to the second beam 82 and the output end is connected to the first beam 81.

The driving member 3 outputs a linear reciprocating motion, so that the angle of the above-mentioned set of opposite corners of the driving lifting member 41 and the driven lifting member 42 is changed, thereby lifting and resetting the lifting platform 21. At least one driving member 3 is provided in one lifting mechanism 22, and preferably two driving members 3 are provided in the embodiment, and the two driving members 3 correspond to two ends of the first cross member 81 respectively. Indeed, in other embodiments, as an alternative, the lifting mechanism 22 may have only one driving member 3 disposed in the middle of the first cross member 81, or have several driving members 3 uniformly distributed on the first cross member 81.

Further, the upper parts of the two active lifting members 41 are further connected by a connecting rod 83 to further increase the overall rigidity of the lifting mechanism 22.

Example 2

The lifting device in this embodiment is substantially the same as that in embodiment 1, except that the structure of the limiting member 5 is different.

As shown in fig. 7, the limiting member 5 in this embodiment is a beam structure extending along the width direction of the lifting mechanism 22, the beam is an integrated structure and is fixed on the mounting base 23, the beam is disposed near the sliding ends 422 of the driven lifting members, and can simultaneously limit the sliding ends 422 of the two driven lifting members to slide to the outer side of the lifting device, thereby shortening the time required for separately disposing the limiting member 5 at each sliding end and improving the assembly efficiency.

In alternative embodiments, the cross beams may be located at other positions, such as the sliding ends 412 fixed on the mounting platform or near the driving lift, and the like, and the location of the cross beams is based on the positions of the sliding ends 412 and 422 of the driving lift and the driven lift, and whether the technician intends to define the sliding ends as the driving lift 41 or the driven lift 42, and one cross beam is generally used to limit the sliding ends of the driving lift 41 and/or the sliding lifts located at the same height and the same side of the lifting device. If the lifting device only comprises one lifting component, a cross beam is not required to be arranged.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like are used in an orientation or positional relationship indicated based on the orientation or positional relationship of the device or component as it is normally used, merely for convenience of description and simplicity of description, and do not indicate or imply that the device or component in question must have a particular orientation, be constructed and operated in a particular orientation at any time, unless otherwise specified herein.

Although specific embodiments of the present invention have been described above, it will be understood by those skilled in the art that this is by way of example only and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and the principles of the present invention, and these changes and modifications are all within the scope of the present invention.

Claims

1. A lifting device is used for lifting an electric automobile in a power conversion station and is characterized by comprising a lifting platform, a lifting mechanism and a mounting base, wherein the lifting mechanism comprises a driving part and at least one lifting assembly of a scissor structure, the lifting assembly comprises a driving lifting part and a driven lifting part which are arranged in a crossed mode, and the driving part is used for controlling the crossed angle of the driving lifting part and the driven lifting part; a rotating end of the driving lifting piece and a rotating end of the driven lifting piece are respectively and rotatably connected with the lifting platform or the mounting base, and a sliding end of the driving lifting piece and a sliding end of the driven lifting piece are respectively and slidably connected with the lifting platform or the mounting base;

2. The lifting device as claimed in claim 1, wherein a roller is disposed at a sliding end of the driving lifting member and/or the driven lifting member, and the stopper is configured to abut against the roller and block a sliding stroke of the roller to an outside.

3. The lifting device as claimed in claim 2, wherein a slide way is disposed on the lifting platform and/or the mounting base, and the limiting member is disposed on the slide way and is configured to limit a maximum sliding stroke of the roller sliding outwards along the slide way.

4. The lift apparatus of claim 1, wherein the lift mechanism comprises a plurality of the driving lift members and a plurality of the driven lift members, the plurality of driving lift members and the plurality of driven lift members being spaced apart from each other in a width direction of the lift mechanism.

5. The lifting device according to claim 4, wherein the limiting member is a limiting block, and the sliding end of the driving lifting member and/or the driven lifting member is limited by one of the limiting blocks.

6. The lifting device as claimed in claim 4, wherein the limiting member is a cross beam extending along the width direction of the lifting mechanism, and the cross beam is used for simultaneously limiting the sliding ends of the plurality of driving lifting members and/or the sliding ends of the plurality of driven lifting members.

7. The lifting device of claim 4, further comprising:

a first cross member for connecting a plurality of the driven lifters;

a second beam for connecting a plurality of the active lifting members;

8. Vehicle carrying platform, characterized in that it comprises a lifting device according to any one of claims 1-7.

9. The vehicle loading platform of claim 8, wherein the vehicle loading platform comprises two lifting devices, namely a first lifting device and a second lifting device, the first lifting device is located at the front end of the vehicle loading platform and is used for bearing the front wheels of the electric vehicle, and the second lifting device is located at the rear end of the vehicle loading platform and is used for bearing the rear wheels of the electric vehicle.

10. A swap station, characterized in that the swap station comprises a vehicle carrying platform according to claim 8 or 9.