CN220364317U

CN220364317U - Level-changing trolley vehicle lifting mechanism

Info

Publication number: CN220364317U
Application number: CN202322063296.9U
Authority: CN
Inventors: 王�锋; 丁武俊; 周晓伟; 厉蒋
Original assignee: Hangzhou Hongtu Smart Energy Technology Co ltd
Current assignee: Hangzhou Hongtu Smart Energy Technology Co ltd
Priority date: 2023-08-02
Filing date: 2023-08-02
Publication date: 2024-01-19
Anticipated expiration: 2033-08-02

Abstract

The utility model discloses a level-changing trolley vehicle lifting mechanism which comprises a frame body and lifting devices symmetrically arranged on two sides of the frame body; the lifting device comprises a mounting seat, a lifting table, a lifting module and a driving module; the mounting seat is fixedly arranged on the frame body, the driving module is arranged on the mounting seat, and the lifting module is arranged between the mounting seat and the lifting table; the driving module is used for driving the lifting module to work, the lifting module is used for controlling the lifting platform to lift, and the lifting platform is used for supporting and lifting the vehicle. Because of the position limitation of the vehicle-type battery of the bearing type vehicle body, bottom replacement type power replacement is mostly adopted during power replacement, and if the assistance of a general lifting mechanism is not used, the power replacement work is difficult to be completed in a narrow bottom space only by manpower or a motor replacement robot; therefore, the lifting mechanism is arranged on the battery replacing platform, so that the two sides of the vehicle body can be lifted, and the battery replacing robot or the staff can stably take out or send the battery into the battery replacing platform to finish battery replacing.

Description

Level-changing trolley vehicle lifting mechanism

Technical Field

The utility model relates to the technical field of level changing platforms of electric automobiles, in particular to a lifting mechanism of a level changing platform vehicle.

Background

In the prior art, the electric power supply mode of the power battery of the electric automobile is generally divided into two modes of vehicle-mounted plug-in charging and battery replacement, wherein the plug-in charging mode has two modes of slow charging and fast charging. The following defects exist by adopting the plug-in mode: 1. the initial investment cost of the battery is high, which prevents the popularization of the electric automobile to a certain extent; 2. the charging time is too long, at least 2-4 hours, and compared with the refueling of a common automobile, the electric automobile takes too long to supply energy, is very inconvenient and can not meet the needs of people. And the fast charge mode has larger damage to the battery, resulting in shortening the service life of the battery.

The battery can be replaced, so that the problem of the plug-in charging mode can be effectively avoided. However, due to the height limitation of the small-sized carrier vehicle body model and the battery position limitation caused by the lower chassis, the battery replacement of the carrier vehicle body model can be realized by the aid of the lifting device.

The existing partial power conversion platform is designed only for power conversion of vehicles of specific vehicle types, so that the partial power conversion platform does not have a general vehicle type lifting device, so that the partial power conversion platform is difficult to convert most of bearing vehicle body types, the difficulty of power conversion of the bearing vehicle body types is increased, and the power conversion efficiency is affected.

For example, CN115556627a discloses a power conversion platform, a power conversion device and a power conversion station, which belong to the technical field of electric automobile power conversion. The battery pack is assembled and disassembled on the electric automobile, and the battery pack is assembled and disassembled on the electric automobile; the driving part is used for driving the battery mounting part to move along a first direction and a second direction relative to the supporting part; the first direction is perpendicular to the second direction. The driving part can drive the battery mounting part to move along the first direction and the second direction which are perpendicular to each other, so that the position of the battery mounting part can be adjusted in the plane where the first direction and the second direction are located when the battery mounting part is positioned with a battery pack on an electric automobile.

According to the technical scheme, although the positioning adjustment range and the positioning accuracy of the power conversion platform are improved, the power conversion difficulty is high when a chassis is lower and a bearing type vehicle body vehicle type is met due to the fact that the universal vehicle type lifting device is not provided.

Aiming at the defects of the prior art, a level-changing trolley vehicle lifting mechanism is urgently needed, the level-changing trolley vehicle lifting mechanism can be suitable for power-changing work of different vehicle types, and when a load-bearing type vehicle body type is subjected to power-changing, the height of the load-bearing type vehicle body type can be lifted through a general vehicle type lifting mechanism so as to assist in improving the power-changing efficiency of the vehicle.

Disclosure of Invention

The utility model discloses a lifting mechanism of a level-changing platform vehicle, which comprises a frame body and lifting devices symmetrically arranged on two sides of the frame body, wherein the lifting devices are also positioned on two sides of an unlocking power-changing module on a power-changing platform;

the lifting device comprises a mounting seat, a lifting table, a lifting module and a driving module; the mounting seat is fixedly arranged on the frame body, the driving module is arranged on the mounting seat, and the lifting module is arranged between the mounting seat and the lifting table;

the driving module is used for driving the lifting module to work, the lifting module is used for controlling the lifting platform to lift, and the lifting platform is used for supporting and lifting the vehicle.

Because the battery of the small electric car is generally arranged at the chassis position, the bottom replacement type power replacement is adopted when the power is replaced, and if the power is replaced without the assistance of a lifting mechanism, the power replacement work is difficult to be completed in a narrow bottom space only by manpower or a motor replacement robot; therefore, the battery replacement device is used for replacing the battery through the small-sized vehicle with the lower auxiliary chassis, which is provided with the lifting mechanism on the battery replacement platform, and when the battery replacement device is used for replacing the battery by the small-sized vehicle, the two sides of the vehicle body are lifted through the lifting devices on the two sides, so that the battery replacement robot or a worker can stably take out or send the battery into the battery replacement device to complete battery replacement work.

Preferably, the lifting module comprises two symmetrically arranged lifting assemblies, and the lifting assemblies comprise a first bracket, a second bracket, a first sliding piece, a second sliding piece and a supporting shaft;

the first sliding piece is arranged on the mounting seat, the second sliding piece is arranged at the bottom of the lifting table, the first sliding piece and the second sliding piece are positioned at the same end, and the second sliding piece is positioned right above the first sliding piece;

the end A of the first bracket is hinged with the lifting table through a connecting piece, and the end B of the first bracket is hinged with the first sliding piece through a connecting piece;

the C end of the second bracket is hinged with the mounting seat through a connecting piece, and the D end of the second bracket is hinged with the second sliding piece through a connecting piece;

the first bracket and the second bracket are crossed and staggered, and a fulcrum is arranged at the crossing center point of the first bracket and the second bracket in a penetrating way; the first bracket and the second bracket can rotate around the supporting shaft.

According to the vehicle lifting device, lifting control of the lifting platform is achieved through the lifting module; the operating principle of this application lifting module is: the driving module drives the first sliding part to slide so as to drive the first support to rotate around the supporting shaft, and simultaneously drives the second sliding part to slide so as to drive the second support to rotate around the supporting shaft, the first sliding part and the second sliding part work synchronously, so that the first support and the second support synchronously rotate, and one ends of the first support and the second support are connected with the lifting platform, so that the lifting platform can be driven to lift when the first support and the second support rotate.

Preferably, the first sliding part comprises a first sliding rail and a first sliding block, the front end and the rear end of the first sliding rail are fixedly arranged on the mounting seat through two fixing parts, the first sliding block is arranged on the first sliding rail, and the first sliding block can slide along the first sliding rail in a reciprocating manner.

The first sliding block can slide on the first sliding rail, one end of the first sliding block is connected with the first support, and the first support can be driven to rotate when the first sliding block slides.

Preferably, the second sliding part comprises a second sliding rail and a second sliding block, the front end and the rear end of the second sliding rail are fixedly arranged at the bottom of the lifting platform through two fixing parts, the second sliding block is arranged on the second sliding rail, and the second sliding block can slide along the second sliding rail in a reciprocating manner.

The second slider can slide on the second slide rail, and the second support is connected to the one end of second slider, can drive the second support and rotate when the second slider slides.

Preferably, a reinforcing rib assembly is further arranged between the two lifting assemblies, the reinforcing rib assembly comprises a first reinforcing rib and a second reinforcing rib, and the first reinforcing rib and the second reinforcing rib are symmetrically arranged; the first reinforcing ribs are arranged between the two first brackets and close to the upper part; the second reinforcing ribs are arranged between the two second brackets and close to the upper part.

The stability and the supporting strength of the two first brackets are enhanced through the first reinforcing ribs; the stability and the supporting strength of the two second brackets are enhanced through the second reinforcing ribs.

Preferably, the first reinforcing ribs and the second reinforcing ribs are made of iron or stainless steel.

Preferably, the driving module comprises two motor groups symmetrically arranged on the mounting seat, and the two motor groups are respectively used for controlling the two corresponding lifting assemblies.

Preferably, two ends of the top of the lifting table are respectively fixedly provided with a cushion block.

The cushion block is used for more stably supporting and buffering the vehicle, and the vehicle is prevented from being worn when the vehicle is lifted.

Preferably, two sides of the frame body are respectively provided with a guard board.

The parts inside the frame body are protected by the guard plate.

Preferably, the first bracket and the second bracket are identical in shape and size.

The first support and the second support can be driven to realize stable linear lifting when rotating, and the lifting work of the vehicle is prevented from being influenced by inclination when the lifting platform is lifted.

Compared with the prior art, the utility model has the following beneficial effects:

1. because the battery of the small electric car is generally arranged at the chassis position, the bottom replacement type power replacement is adopted when the power is replaced, and if the power is replaced without the assistance of a lifting mechanism, the power replacement work is difficult to be completed in a narrow bottom space only by manpower or a motor replacement robot; therefore, the battery replacement device is used for replacing the battery through the small-sized vehicle with the lower auxiliary chassis, which is provided with the lifting mechanism on the battery replacement platform, and when the battery replacement device is used for replacing the battery by the small-sized vehicle, the two sides of the vehicle body are lifted through the lifting devices on the two sides, so that the battery replacement robot or a worker can stably take out or send the battery into the battery replacement device to complete battery replacement work.

2. According to the vehicle lifting device, lifting control of the lifting platform is achieved through the lifting module; the operating principle of this application lifting module is: the driving module drives the first sliding part to slide so as to drive the first support to rotate around the supporting shaft, and simultaneously drives the second sliding part to slide so as to drive the second support to rotate around the supporting shaft, the first sliding part and the second sliding part work synchronously, so that the first support and the second support synchronously rotate, and one ends of the first support and the second support are connected with the lifting platform, so that the lifting platform can be driven to lift when the first support and the second support rotate.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the working state of the present utility model;

FIG. 2 is a second schematic diagram of the working state of the present utility model;

FIG. 3 is a schematic perspective view of a lifting mechanism of a level shifting trolley according to the present utility model;

FIG. 4 is a schematic plan view of a lifting device according to the present utility model;

FIG. 5 is a schematic perspective view of a lifting device according to the present utility model;

wherein, the figure shows: the lifting device comprises a frame body 1, a lifting device 2, a mounting seat 21, a lifting table 22, a cushion block 220, a lifting module 23, a driving module 24, a first bracket 3, a second bracket 4, a first sliding piece 5, a first sliding rail 51, a first sliding block 52, a second sliding piece 6, a second sliding rail 61, a second sliding block 62, a fulcrum 7, a first reinforcing rib 8, a second reinforcing rib 9 and a guard plate 10.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Embodiment 1,

The embodiment is used for small wheelbase vehicle types with the wheelbase of 2600-3100 mm, such as a bearing type vehicle body vehicle type;

as shown in fig. 2-5, the embodiment provides a lifting mechanism of a level-changing trolley vehicle, which comprises a frame body 1 and lifting devices 2 symmetrically arranged at two sides of the frame body 1, wherein the lifting devices 2 are also positioned at two sides of an unlocking power-changing module on a power-changing platform;

the lifting device 2 comprises a mounting seat 21, a lifting table 22, a lifting module 23 and a driving module 24; the mounting seat 21 is fixedly arranged on the frame body 1, the driving module 24 is arranged on the mounting seat 21, and the lifting module 23 is arranged between the mounting seat 21 and the lifting table 22;

the driving module 24 is used for driving the lifting module 23 to work, the lifting module 23 is used for controlling the lifting platform 22 to lift, and the lifting platform 22 is used for supporting and lifting the vehicle.

Lifting devices 2 are arranged on two sides of the frame body 1, and the lifting devices 2 are used for supporting and lifting two sides of a vehicle; the specific working mode of the lifting device 2 is as follows: after the vehicle enters the power conversion platform, the lifting module 23 is driven to lift through the driving module 24, the lifting module 23 synchronously drives the lifting platform to lift the vehicle when lifted, then the chassis part of the vehicle can be subjected to power conversion, and after the power conversion is finished, the vehicle is driven away, the driving module 24 drives the lifting module 23 to descend for resetting, and the lifting module 23 synchronously drives the lifting platform 22 to descend for resetting.

As shown in fig. 3-5, the lifting module 23 comprises two symmetrically arranged lifting assemblies, wherein the lifting assemblies comprise a first bracket 3, a second bracket 4, a first sliding piece 5, a second sliding piece 6 and a supporting shaft 7;

the first sliding piece 5 is arranged on the mounting seat 21, the second sliding piece 6 is arranged at the bottom of the lifting table 22, the first sliding piece 5 and the second sliding piece 6 are positioned at the same end, and the second sliding piece 6 is positioned right above the first sliding piece 5;

the end A of the first bracket 3 is hinged with the lifting table 22 through a connecting piece, and the end B of the first bracket 3 is hinged with the first sliding piece 5 through a connecting piece;

the C end of the second bracket 4 is hinged with the mounting seat 21 through a connecting piece, and the D end of the second bracket 4 is hinged with the second sliding piece 6 through a connecting piece;

the first bracket 3 and the second bracket 4 are staggered in a crossing way, and a fulcrum shaft 7 is arranged at the crossing center point of the first bracket 3 and the second bracket 4 in a penetrating way; the first bracket 3 and the second bracket 4 can both rotate around the support shaft 7.

The lifting module 23 synchronously moves through lifting assemblies symmetrically arranged on two sides to finish lifting work; the specific working principle of the lifting component is as follows: when lifting is needed, the driving module 24 drives the first sliding piece 5 to slide so as to drive the first bracket 3 to rotate anticlockwise around the support shaft 7, meanwhile, the driving module 24 drives the second sliding piece 6 to slide so as to drive the second bracket 4 to rotate clockwise around the support shaft 7, the first sliding piece 5 and the second sliding piece 6 work synchronously, so that the first bracket 3 and the second bracket 4 rotate synchronously, and one ends of the first bracket 3 and the second bracket 4 are connected with the lifting table 22, so that the lifting table 22 can be driven to lift when the first bracket 3 and the second bracket 4 rotate;

when the descending reset is needed, the driving module 24 drives the first sliding piece 5 and the second sliding piece 6 to reversely slide, at the moment, the first sliding piece 5 drives the first bracket 3 to rotate clockwise around the supporting shaft 7, and the second sliding piece 6 drives the second bracket 4 to rotate anticlockwise.

As shown in fig. 4-5, the first sliding member 5 includes a first sliding rail 51 and a first sliding block 52, the front end and the rear end of the first sliding rail 51 are fixedly disposed on the mounting seat 21 through two fixing members, the first sliding block 52 is disposed on the first sliding rail 51, and the first sliding block 52 can slide reciprocally along the first sliding rail 51.

The first slider 52 can slide on the first slide rail 51, and one end of the first slider 52 is connected with the first bracket 3, and when the first slider 52 slides, the first bracket 3 can be driven to rotate.

As shown in fig. 4-5, the second sliding member 6 includes a second sliding rail 61 and a second sliding block 62, the front end and the rear end of the second sliding rail 61 are fixedly disposed at the bottom of the lifting platform 22 through two fixing members, the second sliding block 62 is disposed on the second sliding rail 61, and the second sliding block 62 can slide reciprocally along the second sliding rail 61.

The second slider 62 can slide on the second slide rail 61, and one end of the second slider 62 is connected with the second bracket 4, and when the second slider 62 slides, the second bracket 4 can be driven to rotate.

As shown in fig. 3-5, a reinforcing rib assembly is further arranged between the two lifting assemblies, the reinforcing rib assembly comprises a first reinforcing rib 8 and a second reinforcing rib 9, and the first reinforcing rib 8 and the second reinforcing rib 9 are symmetrically arranged; the first reinforcing ribs 8 are arranged between the two first brackets 3 and near the upper part; the second reinforcing ribs 9 are arranged between the two second brackets 4 at positions close to the upper parts.

The stability and the supporting strength of the two first brackets 3 are enhanced by the first reinforcing ribs 8; the stability and the supporting strength of the two second brackets 4 are enhanced by the second reinforcing ribs 9.

The first reinforcing ribs 8 and the second reinforcing ribs 9 are made of iron or stainless steel.

As shown in fig. 3-5, the driving module 24 includes two motor sets symmetrically disposed on the mounting base 21, and the two motor sets are respectively used for controlling the corresponding two lifting assemblies.

As shown in fig. 2-4, two ends of the top of the lifting platform 22 are respectively and fixedly provided with a cushion block 220.

As shown in fig. 2, two guard plates 10 are respectively disposed on two sides of the frame body 1.

As shown in fig. 3-5, the first bracket 3 is identical in shape and size to the second bracket 4.

The working principle of the embodiment is as follows: after the vehicle is driven into the power conversion platform, the lifting module 23 is driven to lift through the driving module 24, the lifting module 23 synchronously drives the lifting platform to lift the vehicle when lifted, and then the chassis part of the vehicle can be converted into power, and the specific working mode of the lifting module 23 is as follows: the lifting module 23 synchronously moves through the lifting assemblies symmetrically arranged on two sides to complete lifting operation, wherein the lifting assemblies drive the first sliding piece 5 to slide through the driving module 24 so as to drive the first bracket 3 to rotate anticlockwise around the support shaft 7, meanwhile, the driving module 24 drives the second sliding piece 6 to slide so as to drive the second bracket 4 to rotate clockwise around the support shaft 7, and the first sliding piece 5 and the second sliding piece 6 synchronously work, so that the first bracket 3 and the second bracket 4 synchronously rotate, and as one end of each of the first bracket 3 and the second bracket 4 is connected with the lifting table 22, the lifting table 22 can be driven to lift when the first bracket 3 and the second bracket 4 rotate;

when the vehicle is driven off after the power is replaced, the driving module 24 drives the lifting module 23 to descend for resetting, and the lifting module 23 synchronously drives the lifting table 22 to descend for resetting. The specific working mode of the lifting module 23 at this time is as follows: the first sliding piece 5 and the second sliding piece 6 are driven to reversely slide through the driving module 24, at the moment, the first sliding piece 5 drives the first bracket 3 to rotate clockwise around the supporting shaft 7, the second sliding piece 6 drives the second bracket 4 to rotate anticlockwise, and the lifting table 22 is driven to descend and reset through the first bracket 3 and the second bracket 4.

Embodiment II,

The embodiment is used for a large-wheelbase vehicle type with a wheelbase of 3200mm-3800mm, such as a light truck;

as shown in fig. 1, this embodiment proposes a level-shifting trolley vehicle lifting mechanism, and this embodiment is based on the technical solution of the first embodiment, and further includes the following technical contents:

when the vehicle is driven into a vehicle type with a large wheelbase such as a light truck, the side of the vehicle is changed into electricity, and enough space is reserved on the side of the vehicle to change the electricity, so that the vehicle lifting mechanism of the level changing platform does not need to lift the vehicle, and the level changing platform directly changes the electricity to the vehicle through the over-change motor robot.

Furthermore, the terms "upper," "lower," "inner," "outer," "front," "rear" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The relative steps, numerical expressions and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise.

It is understood that the foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, but rather is to be accorded the full scope of all such modifications and equivalent structures, features and principles as set forth herein.

Finally, it should be noted that: the above examples are only specific embodiments of the present utility model, and are not intended to limit the scope of the present utility model, but it should be understood by those skilled in the art that the present utility model is not limited thereto, and that the present utility model is described in detail with reference to the foregoing examples: any person skilled in the art may modify or easily conceive of the technical solution described in the foregoing embodiments, or perform equivalent substitution of some of the technical features, while remaining within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model, and are intended to be included in the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. The lifting mechanism of the level-changing trolley vehicle is characterized by comprising a frame body (1) and lifting devices (2) symmetrically arranged on two sides of the frame body (1), wherein the lifting devices (2) are also positioned on two sides of an unlocking power-changing module on a power-changing platform;

the lifting device (2) comprises a mounting seat (21), a lifting table (22), a lifting module (23) and a driving module (24); the mounting seat (21) is fixedly arranged on the frame body (1), the driving module (24) is arranged on the mounting seat (21), and the lifting module (23) is arranged between the mounting seat (21) and the lifting table (22);

the driving module (24) is used for driving the lifting module (23) to work, the lifting module (23) is used for controlling the lifting platform (22) to lift, and the lifting platform (22) is used for supporting and lifting the vehicle.

2. A trolley vehicle lifting mechanism according to claim 1, characterized in that the lifting module (23) comprises two symmetrically arranged lifting assemblies, the lifting assemblies comprising a first bracket (3), a second bracket (4), a first slider (5), a second slider (6), a fulcrum (7);

the first sliding piece (5) is arranged on the mounting seat (21), the second sliding piece (6) is arranged at the bottom of the lifting table (22), the first sliding piece (5) and the second sliding piece (6) are positioned at the same end, and the second sliding piece (6) is positioned right above the first sliding piece (5);

the end A of the first bracket (3) is hinged with the lifting table (22) through a connecting piece, and the end B of the first bracket (3) is hinged with the first sliding piece (5) through a connecting piece;

the C end of the second bracket (4) is hinged with the mounting seat (21) through a connecting piece, and the D end of the second bracket (4) is hinged with the second sliding piece (6) through a connecting piece;

the first support (3) and the second support (4) are crossed and staggered, and a fulcrum (7) is arranged at the crossing center point of the first support (3) and the second support (4) in a penetrating way; the first bracket (3) and the second bracket (4) can rotate around the support shaft (7).

3. The lifting mechanism of the level shifting trolley vehicle according to claim 2, wherein the first sliding piece (5) comprises a first sliding rail (51) and a first sliding block (52), the front end and the rear end of the first sliding rail (51) are fixedly arranged on the mounting seat (21) through two fixing pieces, the first sliding block (52) is arranged on the first sliding rail (51), and the first sliding block (52) can slide along the first sliding rail (51) in a reciprocating mode.

4. A level shifting trolley vehicle lifting mechanism according to claim 3, wherein the second sliding piece (6) comprises a second sliding rail (61) and a second sliding block (62), the front end and the rear end of the second sliding rail (61) are fixedly arranged at the bottom of the lifting platform (22) through two fixing pieces, the second sliding block (62) is arranged on the second sliding rail (61), and the second sliding block (62) can slide along the second sliding rail (61) in a reciprocating manner.

5. The lifting mechanism of the level shifting trolley vehicle according to claim 2, wherein a reinforcing rib assembly is further arranged between the two lifting assemblies, the reinforcing rib assembly comprises a first reinforcing rib (8) and a second reinforcing rib (9), and the first reinforcing rib (8) and the second reinforcing rib (9) are symmetrically arranged; the first reinforcing ribs (8) are arranged between the two first brackets (3) and are close to the upper part; the second reinforcing ribs (9) are arranged between the two second brackets (4) and near the upper part.

6. The lifting mechanism of a level shifting trolley according to claim 5, wherein the first reinforcing ribs (8) and the second reinforcing ribs (9) are made of iron or stainless steel.

7. A level-shifting trolley vehicle lifting mechanism according to claim 2, characterized in that the drive module (24) comprises two motor groups symmetrically arranged on the mounting base (21), which are respectively used for controlling the corresponding two lifting assemblies.

8. The lifting mechanism of the level shifting platform vehicle according to claim 1, wherein two ends of the top of the lifting platform (22) are respectively fixedly provided with a cushion block (220).

9. The lifting mechanism of the level-shifting trolley vehicle according to claim 1, wherein two sides of the frame body (1) are respectively provided with a guard plate (10).

10. A trolley lifting mechanism according to claim 2, characterized in that the first bracket (3) and the second bracket (4) are identical in shape and size.