CN111137808A

CN111137808A - handling trolley

Info

Publication number: CN111137808A
Application number: CN201811303211.7A
Authority: CN
Inventors: 曾德权; 吴超; 陈彬; 吴永海; 白寒
Original assignee: Hangzhou Hikrobot Technology Co Ltd
Current assignee: Hangzhou Hikrobot Technology Co Ltd
Priority date: 2018-11-02
Filing date: 2018-11-02
Publication date: 2020-05-12
Anticipated expiration: 2038-11-02
Also published as: CN111137808B

Abstract

The invention discloses a carrying trolley which comprises a carrying platform and a lifting carrying mechanism arranged on the carrying platform, wherein the lifting carrying mechanism comprises a lifting base and a carrying main body connected with the lifting base, the carrying main body comprises a supporting table and two telescopic mechanisms arranged on two sides of the supporting table, the two telescopic mechanisms are connected with the supporting table through distance adjusting mechanisms, the distance between the two telescopic mechanisms can be adjusted through the distance adjusting mechanisms, the two telescopic mechanisms and the supporting table form an object placing space, each telescopic mechanism comprises a telescopic main body and a cargo driving rod, the telescopic main bodies are connected with the distance adjusting mechanisms, each telescopic main body comprises a telescopic part, the cargo driving rods are rotatably arranged at the end parts of the telescopic parts, and the carrying platform comprises a first driving motor for driving the carrying trolley to travel. The carrying trolley can carry containers with different sizes.

Description

Carrying trolley

Technical Field

The invention relates to the technical field of warehouse logistics, in particular to a carrying trolley.

Background

With the increasing development of the logistics industry, more considerations are needed for the operation and storage of goods. Warehouses typically hold a large number of goods. In order to reduce the labor cost in the logistics process, more and more logistics companies adopt the carrying trolley to replace manual carrying, so that the goods are transferred. The carrying trolley can realize long-time online work, and can undoubtedly achieve efficient operation effect.

It is known that the types of goods stored in the warehouse are various, and the sizes of the different types of goods are different. During operation, the current handling mechanisms can only handle containers of one size, which undoubtedly results in a less adaptable handling vehicle. In order to carry containers of different sizes, the current warehousing system needs to be equipped with a plurality of types of carrying trolleys, which undoubtedly increases the cost of the warehousing system.

Disclosure of Invention

The invention discloses a carrying trolley, which is convenient for carrying containers with different sizes.

In order to solve the problems, the invention adopts the following technical scheme:

the utility model provides a floor truck, is in including carrying platform and setting carry up lift transport mechanism on the platform, lift transport mechanism include the lift base and with the transport main part that the lift pedestal is connected, the transport main part includes the brace table and sets up two telescopic machanisms of brace table both sides, two telescopic machanism pass through roll adjustment mechanism with the brace table links to each other, but roll adjustment mechanism two distance between the telescopic machanism, two telescopic machanism with the brace table forms puts the object space, telescopic machanism includes flexible main part and goods driving lever, flexible main part with roll adjustment mechanism links to each other, flexible main part includes the pars contractilis, the goods driving lever sets up with rotating the tip of pars contractilis, carry the platform including the drive the first driving motor of floor truck walking.

The technical scheme adopted by the invention can achieve the following beneficial effects:

in the carrying trolley disclosed by the embodiment of the invention, the support table and the two telescopic mechanisms form an object placing space, and the distance between the two telescopic mechanisms can be adjusted by the distance adjusting mechanism, so that the object placing space can be suitable for placing containers with different sizes, and finally the carrying trolley can carry containers with different sizes. Under the condition, the warehousing system does not need to be provided with a plurality of types of carrying trolleys, so that the cost of the warehousing system can be reduced.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of a carrying trolley disclosed in an embodiment of the present invention, a bidirectional arrow x is a rotation direction of a cargo shifter lever, arrows x + and x-are respectively moving directions of a telescopic portion, an arrow z is a rotation direction of a swing mechanism, and arrows y + and y-are respectively moving directions of the telescopic mechanism;

FIG. 2 is a schematic structural diagram of a mounting platform disclosed in the embodiment of the present invention;

fig. 3 to fig. 7 are schematic diagrams of a lifting and carrying mechanism according to an embodiment of the present invention in different states;

FIG. 8 is a schematic view of another elevator handling mechanism according to an embodiment of the present invention;

figures 9-12 are schematic views of the removal of a container from a pallet, respectively;

FIGS. 13-16 are schematic views of the placement of containers onto pallets, respectively;

fig. 17 and 18 are schematic structural views of another carrying cart according to the embodiment of the present invention.

Description of reference numerals:

100-carrying platform, 110-driving wheel, 120-collision sensor, 130-charging port, 140-obstacle avoidance sensor, 150-obstacle avoidance sensor, 160-obstacle avoidance sensor and 100' -carrying platform;

200-lifting and carrying mechanism, 210-lifting base, 211-avoiding opening, 212-supporting part, 213-bracket, 220-carrying main body, 221-supporting platform, 222-telescoping mechanism, 2221-telescoping main body, 2221 a-fixed part, 2221 b-telescoping part, 2222-goods deflector rod, 2223-second driving motor, 223-distance adjusting mechanism, 224-storage space, 225-conveying mechanism, 230-slewing mechanism, 240-wharf, 200' -lifting and carrying mechanism,

300-vehicle-mounted shelf, 310-storage grid, 320-upright post, 330-partition plate, 340-guide piece, 350-cargo detection sensor, 360-position sensor, 300' -vehicle-mounted shelf,

400-fork leg, 410-avoiding groove,

500-sorting mechanism, 510-base station, 511-guide block, 512-limit block, 520-sorting mechanical arm and 530-vision system.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. 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.

The technical solutions disclosed in the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

Referring to fig. 1 to 18, the embodiment of the present invention discloses a carrying cart, which includes a carrying platform 100 and a lifting and lowering carrying mechanism 200.

The mounting platform 100 is a base member of the AGV, and the mounting platform 100 includes basic functional devices of the AGV, such as a movement driving mechanism. Specifically, the carrying platform 100 includes a first driving motor for driving the entire cart to travel.

The lifting/lowering/conveying mechanism 200 is provided on the mounting platform 100. The lifting/lowering conveyance mechanism 200 can move up and down in the height direction of the conveyance cart. The lifting and carrying mechanism 200 is used for carrying goods, namely, taking and placing the goods on the goods shelf. The lifting and moving of the lifting and carrying mechanism 200 can realize the picking and placing of the goods placed on the shelf B at different heights. In general, the load is packed in the container a, and the lifting/lowering/conveying mechanism 200 conveys the load by conveying the container a.

The mounting platform 100 is a base for the carrier, and ensures the movement of the entire carrier. The mounting platform 100 provides a mounting base for the other components of the cart. The lifting/lowering/conveying mechanism 200 is provided on the mounting platform 100 and can be lifted and lowered in the height direction of the conveyance cart.

In this embodiment, the lifting/lowering/carrying mechanism 200 includes a lifting/lowering base 210 and a carrying body 220. The lifting base 210 is a base member for lifting the carrying mechanism 200, and provides a mounting base for the carrying body 220. The lifting base 210 is connected to the mounting platform 100, and the carrying body 220 is connected to the lifting base 210, thereby realizing the mounting of the carrying body 220.

The conveyance body 220 includes a support base 221 and two telescopic mechanisms 222 provided on both sides of the support base 221, and the two telescopic mechanisms 222 can be connected to the support base 221 by a pitch adjustment mechanism 223. The two telescopic mechanisms 222 and the support base 221 form a storage space 224, and the storage space 224 can accommodate a container a containing goods and is supported by the support base 221. The distance adjusting mechanism 223 is connected to the two telescopic mechanisms 222, so that the two telescopic mechanisms 222 can be adjusted to be close to or far away from each other, and the distance between the two telescopic mechanisms 222 can be adjusted. The distance between the two telescoping mechanisms 222 is adjusted, and the size of the storage space 224 can be changed. The distance adjusting mechanism 223 may be a hydraulic telescopic member or a pneumatic telescopic member, and the two telescopic mechanisms 222 may be disposed at two ends of the hydraulic telescopic member or the pneumatic telescopic member. Of course, the distance adjusting mechanism 223 may be other mechanisms, and the application does not limit the specific kind of the distance adjusting mechanism 223.

In this embodiment, the telescopic mechanism 222 includes a telescopic main body 2221 and a cargo shifter 2222, and the telescopic main body 2221 includes a telescopic portion 2221 b. The goods driving lever 2222 is rotatably provided at an end of the telescopic portion 2221b, and the goods driving lever 2222 can be rotated toward the goods, and then is located at a position where the container can be shifted. When the goods driving lever 2222 is located at a position for shifting the container a, the goods driving lever 2222 can be driven by the telescopic main body 2221 to move, so that the purpose of transferring goods is achieved.

In a preferred embodiment, the two ends of the telescopic portion 2221b are both provided with a cargo deflector 2222. The cargo shifter 2222 is generally connected to a second driving motor 2223 mounted on the telescopic body 2221, and is further driven by the second driving motor 2223 to rotate, so that the cargo shifter 2222 is switched between the operating position and the avoiding position. In the working process, the telescopic portion 2221b of the telescopic main body 2221 is telescopic, so as to drive the cargo shift lever 2222 at the end thereof to move. It should be noted that, the working position of the cargo shift lever 2222 refers to that the cargo shift lever 2222 rotates to a position capable of shifting the cargo box a, and then the cargo box a can be shifted to move under the driving of the expansion and contraction of the expansion part 2221 b. The escape position of the cargo lever 2222 means that the cargo lever 2222 rotates to a position avoiding the cargo box a, and does not interfere with the cargo box a in the telescopic direction of the telescopic body 2221.

For convenience of understanding, the transportation process of the lifting transportation mechanism 200 will be described in detail by taking the example in which the cargo lever 2222 is provided at both ends of the telescopic portion 2221 b.

The process from the rack to the carrier is as follows: referring to fig. 3-7 and 13-16 in combination, the transport trolley travels to the pallet, the size of the container is determined according to the task, the distance between the two telescoping mechanisms 222 is adjusted by the distance adjusting mechanism 223 according to the size of the container (the distance between the two telescoping mechanisms 222 is larger when the size of the container is larger, and the distance between the two telescoping mechanisms 222 is smaller when the size of the container is smaller), the telescoping portions 2221b of the telescoping mechanisms 222 extend to the proper position on the pallet, the cargo deflector 2222 rotates to the working position, the telescoping portions 2221b of the two telescoping mechanisms 222 contract simultaneously, the cargo deflector 2222 at the front end of the extending direction drives the container to move to the support platform 221, and finally the transfer of the container from the pallet to the transport trolley is completed.

Of course, when the container a is on the support platform 221, the cargo lever 2222 is rotated to the working position, so that the cargo lever 2222 located at the rear end in the extending direction drives the container to be transferred from the support platform 221 to the shelf during the extending of the telescoping mechanism 222, and finally the transfer of the container from the support platform 221 to the shelf is completed. As can be seen from the above working process, in the carrying trolley disclosed in the embodiment of the present invention, the support platform 221 and the two telescopic mechanisms 222 form an object placing space 224, and the distance adjusting mechanism 223 can adjust the distance between the two telescopic mechanisms 222, so that the object placing space 224 can accommodate containers with different sizes, and finally the carrying trolley can carry containers with different sizes. Under the condition, the warehousing system does not need to be provided with a plurality of types of carrying trolleys, so that the cost of the warehousing system can be reduced.

Of course, when only one end of the telescopic portion 2221B is provided with the cargo shift lever 2222, the orientation of the cart can be adjusted so that one cargo shift lever 2222 can drive the cargo box a from the rack B to the cart and can also drive the cargo box a from the cart to the rack B.

In this embodiment, the distance adjusting mechanism 223 is used to adjust the distance between the two telescopic mechanisms 222, and in the case that the carrying cart does not include the distance adjusting mechanism 223, the two telescopic mechanisms 222 may be connected to the support platform 221, and the distance between the two telescopic mechanisms 222 is determined, in this case, the carrying main body 220 can carry only the cargo box with a determined size.

Referring again to fig. 1, the telescopic body 2221 may include a fixing portion 2221a, a telescopic portion 2221b, and a driving portion. The telescopic part 2221b is movably disposed on the fixed part 2221a, thereby achieving telescopic movement. The driving part is connected to the telescopic part 2221b and can drive the telescopic part 2221b to move relative to the fixed part 2221 a. Preferably, the driving unit may drive the telescopic unit 2221B to extend from one end of the fixed unit 2221a, or may drive the telescopic unit 2221B to extend from the other end of the fixed unit 2221a, and further may be capable of extending and retracting in the direction of both sides of the carrier.

In order to further optimize the above technical solution, in a preferred embodiment, the carrying body 220 may be connected to the lifting base 210 by a rotating mechanism 230, and the rotating mechanism 230 may rotate the carrying body 220 relative to the lifting base 210, so that the orientation of the storage space 224 may be adjusted, and the carrying body 220 may more flexibly transfer the containers. In this embodiment, the swing mechanism 230 serves as an intermediate connection to enable the carrying body 220 to rotate relative to the lifting base 210, and the swing mechanism 230 may be of various types, for example, the swing mechanism 230 may be a bearing.

In order to improve the carrying capacity of the carrying trolley, in a preferred scheme, the carrying trolley disclosed by the embodiment of the invention further comprises an on-board shelf 300. The on-board shelf 300 is provided on the mounting platform 100 and has a capacity to store a cargo box. The carrying trolley disclosed by the embodiment of the invention also comprises a lifting driving mechanism, the lifting carrying mechanism 200 is movably arranged on the vehicle-mounted shelf 300, the lifting driving mechanism is connected with the lifting carrying mechanism 200, and the lifting driving mechanism is used for driving the lifting carrying mechanism 200 to lift along the vehicle-mounted shelf 300. In general, the in-vehicle shelf 300 is provided with a multi-layer structure in a height direction, and each layer can be placed with a container.

In this embodiment, the vehicle shelf 300 may include an object placing lattice 310, the lifting base 210 may be provided with an avoiding opening 211, the avoiding opening 211 may communicate the object placing space 224 and the object placing lattice 310, and the telescopic mechanism 222 may extend into the object placing lattice 310. The telescoping mechanism 222 can extend into the storage compartment 310, thereby enabling the cargo box to be transferred between the storage space 224 and the storage compartment 310.

As described above, the cart may include an on-board shelf 300, and in one embodiment, the on-board shelf 300 may include at least two columns 320 and a plurality of shelves 310 distributed along the height of the columns 320. There are various structures for forming the storage compartment 310, and in a specific embodiment, the upright post 320 is provided with a plurality of pairs of partition plates 330 along the height direction thereof, and the storage compartment 310 may be formed between two adjacent pairs of partition plates 330 in the height direction of the upright post 320. The telescopic portion 2221b of the telescopic mechanism 222 can be extended into the storage compartment 310, so that the container can be transferred.

In order to facilitate that the container does not deflect when entering the storage compartment, in an optimal scheme, the same pair of partition plates 330 are provided with the guide pieces 340, and a guide space is formed between one ends, close to the avoidance opening 211, of the guide pieces 340 of the same pair of partition plates 330. The guide space can guide the container into the storage compartment 310. Specifically, the guide space may be a V-shaped guide space.

The lifting/lowering/carrying mechanism 200 can be lifted and lowered in the height direction of the on-board shelf 300, and preferably, at least one of the columns 320 is a guide rail. The elevating and carrying mechanism 200 can be engaged with and elevated along the guide rail. In this case, the pillar 320 can form the on-board shelf 300 and can also serve as a lifting rail of the lifting/lowering conveyance mechanism 200, which undoubtedly can improve the integration of the conveyance cart, so that the occupied space of the conveyance cart is smaller.

In the operation process of goods, the lifting and carrying mechanism 200 places the container a in the storage cells 310 at different heights through lifting, in order to facilitate intelligent management, in an optimal scheme, each storage cell 310 is provided with a goods detection sensor 350, the goods detection sensor 350 can detect whether a container a exists in the storage cell 310, and then feeds back the container a to a control system of the carrying trolley, the control system controls the carrying trolley to move to the height corresponding to the storage cell 310 without storing the container a, and then preparation is made for subsequent transfer of the container a.

The vehicle-mounted shelf 300 may be provided with a position sensor 360, and the position sensor 360 may detect a height position of the lifting/lowering/carrying mechanism 200, thereby providing a basis for controlling the lifting/lowering of the lifting/carrying mechanism 200.

During the handling of the goods, the trolley travels in the warehouse, and the trolley is usually equipped with a scanning head, which can scan the box number of the container a on the shelf B, and then determine whether the container is the target container. In order to facilitate the code scanning operation, in a preferred embodiment, at least one side edge of the lifting and carrying mechanism 200 is provided with a code scanning head 240, and the scanning direction of the code scanning head 240 can be toward the lateral direction of the carrying trolley, so that the code scanning can be realized through the lateral direction. Under the condition, when the carrying trolley advances in the advancing channel formed by the goods shelf B, the code scanning head 240 can scan the goods shelf A on the goods shelf B on one side of the carrying trolley, the code scanning operation is convenient in the arrangement mode, and the code scanning efficiency can be improved.

In a preferred embodiment, the scanning head 240 may be disposed on the lifting and carrying mechanism 200, and specifically, the scanning head 240 may be disposed on the lifting base 210 of the lifting and carrying mechanism 200, so as to perform a code scanning operation on the containers a at different heights on the shelf B along with the lifting and carrying mechanism 200. Of course, the scanning head 240 may scan the shelf codes at different heights on the shelf for scanning. The box codes and the shelf codes can be two-dimensional codes, bar codes, character strings or RFID, and the specific types of the box codes and the shelf codes are not limited in the embodiment of the invention. Specifically, the loading head 240 may be disposed on an end surface of the support stage 221.

As described above, the conveyance cart includes the elevating conveyance mechanism 200, and the elevating conveyance mechanism 200 can be elevated, and usually, the elevating conveyance mechanism 200 is located on one side of the conveyance cart, for example, the elevating conveyance mechanism 200 is provided on one side of the on-board rack 300. In order to improve the walking stability of the carrying trolley and avoid overturning. In a preferred embodiment, a fork leg 400 may be disposed at a bottom end of a side surface of the carrying platform 100, the fork leg 400 is provided with a road wheel supported on the ground, and the fork leg 400 and the lifting/carrying mechanism 200 are located on the same side of the carrying platform 100. In this case, the fork legs 400 are supported on the ground through the traveling wheels, and thus the support portions of the carrier including the loading platform 100 and the fork legs 400 are increased, which obviously further improves the stability of the carrier.

Meanwhile, the fork legs 400 are provided at the bottom ends of the sides of the mounting platform 100, and in this case, the elevation transport mechanism 200 can be lowered to a lower position. Correspondingly, the bottom layer of the shelf 600 can be closer to the ground, which undoubtedly can improve the space utilization of the warehouse. Of course, during empty travel, the elevator car mechanism 200 can be in a lower position, while the fork legs 400 improve the stability of the car so that the car can travel at a higher speed, which is certainly advantageous for more efficient operation of the car. The bottom end of the side surface of the mounting platform 100 refers to an end of the side surface of the mounting platform 100 near the bottom surface.

In one embodiment, the number of the fork legs 400 may be two, an avoidance space may be formed between the two fork legs 400, and the lifting base 210 is at least partially located in the avoidance space, in which case the lifting and carrying mechanism 200 can be located at a lower position. Specifically, the lifting base 210 may include a support portion 212 and a bracket 213, the bracket 213 is fixedly connected to the support portion 212, the support portion 212 sinks into the avoiding space, and the carrying main body 220 is disposed on the support portion 212, which undoubtedly can further reduce the height of the lifting base 210.

In a preferred embodiment, an avoiding groove 410 may be provided at a connection portion of the fork leg 400 and the mounting platform 100, and the bracket 213 may extend into the avoiding groove 410, so that the lifting and carrying mechanism 200 can be located at a lower position.

In order to facilitate the transfer of the containers, preferably, a conveying mechanism 225 may be disposed on the supporting surface of the supporting platform 221, and the conveying mechanism 225 may perform a conveying function, so that the containers temporarily stored on the supporting platform 221 may be more quickly conveyed to the shelves or the storage compartments 310. The conveying mechanism 225 may be of various types, and in a specific embodiment, the conveying mechanism 225 may be a belt conveying mechanism, a roller conveying mechanism, a chain conveying mechanism, or the like, and the specific type of the conveying mechanism 225 is not limited in this embodiment.

In this embodiment, the carrying platform 100 includes traveling mechanisms such as the driving wheel 110, the traveling mechanisms may be driven by the first driving motor, and further the whole carrying trolley is moved, the carrying platform 100 may be provided with devices such as the collision sensor 120, the obstacle avoidance sensor 140, the obstacle avoidance sensor 150, and the obstacle avoidance sensor 160, which are disposed on the carrying platform 100 or the fork leg 400, and can avoid the carrying trolley from colliding during the traveling process. The cart is usually driven by a battery, the battery is usually disposed in the mounting platform 100, and the mounting platform 100 may be provided with a charging port 130 to charge the battery.

The carrying trolley disclosed by the embodiment of the invention has the functions of automatic driving, autonomous navigation, automatic armband and the like.

Referring to fig. 17 and 18, the carrying cart disclosed in the embodiment of the present invention may further include a sorting mechanism 500, where the sorting mechanism 500 includes a base 510 and a sorting robot 520. The base 510 may be a separate support base that provides a mounting base for the sorting robot 520. In order to improve the stability of the entire cart, in a preferred embodiment, the base 510 is fixedly connected to the carrying platform 100', so as to form the entire foundation of the entire transportation cart. The sorting robot 520 is provided on the base 510 so as to sort the containers a. In a specific embodiment, the on-board shelf 300 'is mounted on the mounting platform 100', and the lifting and carrying mechanism 200 'is disposed between the on-board shelf 300' and the sorting robot 520.

In a specific working process, the lifting and carrying mechanism 200' can convey the container a to the base 510, and the sorting manipulator 520 can grab the goods in the container a to achieve the purpose of sorting. Preferably, two guide blocks 511 may be disposed on the base 510, and the two guide blocks 511 may guide the container a on the base 510. In a more preferable scheme, a limit block 512 may be disposed on the base table 510, and the limit block 512 can limit the container a, so that the container a finally enters an area formed by the two guide blocks 511 and the limit block 512.

In this application, the sorting manipulator 520 is generally an automated mechanical structure, and can implement the screening grabbing of the goods in the container a according to a preset program, and finally realize sorting.

Above-mentioned floor truck is configured with vision system 530 usually, and at the in-process of work, vision system 530 can detect packing box A's size, and then makes lifting and carrying mechanism's the thing space 224 of putting adjust to suitable size, and then realizes packing box A's transport, and sorting manipulator 520 then can carry out corresponding letter sorting.

In the above embodiments of the present invention, the difference between the embodiments is mainly described, and different optimization features between the embodiments can be combined to form a better embodiment as long as they are not contradictory, and further description is omitted here in view of brevity of the text.

The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A transport trolley, characterized in that it comprises a loading platform (100) and a lifting and transporting mechanism (200) arranged on the loading platform (100), the lifting and transporting mechanism (200) comprising a lifting base (210) ) and a conveying main body (220) connected with the lifting base (210), the conveying main body (220) includes a support table (221) and two telescopic mechanisms (221) arranged on both sides of the support table (221). 222), the two telescopic mechanisms (222) are connected to the support table (221) through a distance adjustment mechanism (223), and the distance adjustment mechanism (223) can adjust the distance between the two telescopic mechanisms (222). distance, the two telescopic mechanisms (222) and the support table (221) form a storage space (224), and the telescopic mechanism (222) includes a telescopic body (2221) and a cargo lever (2222). The telescopic main body (2221) is connected with the distance adjusting mechanism (223), the telescopic main body (2221) includes a telescopic part (2221b), and the cargo lever (2222) is rotatably arranged on the telescopic part (2221b) At the end, the carrying platform (100) includes a first drive motor that drives the transport trolley to travel.

2 . The transport trolley according to claim 1 , wherein the transport main body ( 220 ) is connected to the lift base ( 210 ) through a slewing mechanism ( 230 ). 3 .

3. The transport trolley according to claim 1 or 2, characterized in that, the transport trolley further comprises a vehicle-mounted rack (300), the vehicle-mounted rack (300) comprises a storage compartment (310), and the lift base ( 210) An escape opening (211) is provided, the escape opening (211) can communicate with the storage space (224) and the storage compartment (310), and the telescopic part (2221b) can extend to the storage compartment (310). 310).

4. The transport trolley according to claim 3, wherein the on-board rack (300) comprises at least two uprights (320) and a plurality of pairs of partitions (320) distributed along the height direction of the uprights (320). 330), the storage compartment (310) is formed between two adjacent pairs of the partition plates (330).

5 . The transport trolley according to claim 4 , wherein at least one of the uprights ( 320 ) has a guide rail extending along the height direction, and the lifting and transport mechanism ( 200 ) cooperates with the guide rail and runs along the guide rail. 6 . along the guide rail.

6 . The transport trolley according to claim 4 , wherein guide members ( 340 ) are provided on the same pair of partition plates ( 330 ), and the guide members ( 340) A guiding space is formed between one end close to the escape opening (211).

7 . The transport trolley according to claim 4 , wherein each of the storage compartments ( 310 ) is provided with a cargo detection sensor ( 350 ). 8 .

8. The transport trolley according to claim 2, characterized in that, at least one side edge of the lift transport mechanism (200) is provided with a sweeping dock (240).

9 . The transport trolley according to claim 1 , characterized in that, both ends of the telescopic portion ( 2221 b ) are provided with the cargo levers ( 2222 ). 10 .

10 . The transport trolley according to claim 1 , wherein a conveying mechanism ( 225 ) is provided on the supporting surface of the supporting platform ( 221 ). 11 .

11. The transport trolley according to claim 10, wherein the conveying mechanism (225) is a belt conveying mechanism, a roller conveying mechanism or a chain conveying mechanism.

12. The transport trolley according to claim 1, wherein the bottom end of the side surface of the loading platform (100) is provided with a fork leg (400), and the fork leg (400) is provided with a walking support on the ground Wheels, the fork legs (400) and the lifting and conveying mechanism (200) are located on the same side of the loading platform (100).

13. The transport trolley according to claim 12, characterized in that, the number of the fork legs (400) is two, an avoidance space is formed between the two fork legs (400), and the lift base ( 210) at least partially within the avoidance space.

14. The transport trolley according to claim 13, wherein the lifting base (210) comprises a support part (212) and a bracket (213), the bracket (213) and the support part (212) In a fixed connection, the support part (212) is located in the avoidance space, and the conveying body (220) is arranged on the support part (212).

15. The transport trolley according to claim 14, wherein an escape groove (410) is provided at the connection between the fork leg (400) and the carrying platform (100), and the bracket (213) can be Extend into the avoidance groove (410).

16. The transport trolley according to claim 1, wherein the telescopic body (2221) comprises a fixed part (2221a), the telescopic part (2221b) and a driving part, and the fixed part (2221a) is connected to the fixed part (2221a). The support table (221) is connected, the telescopic part (2221b) is movably arranged on the fixed part (2221a), and the driving part is connected to the telescopic part (2221b) and can drive the telescopic part (2221b) moves bidirectionally relative to the fixing portion (2221a).

17. The transport trolley according to claim 1, further comprising a sorting mechanism (500), the sorting mechanism (500) comprising a base (510) and being arranged on the base (510) the sorting robot (520).

18. The transport trolley according to claim 17, characterized in that, the base (510) is fixedly connected to the carrying platform (100').