CN111410147A

CN111410147A - Lifting module and AGV dolly

Info

Publication number: CN111410147A
Application number: CN202010359452.4A
Authority: CN
Inventors: 郝雪蒙; 郭承志; 贾全
Original assignee: Sany Robot Technology Co Ltd
Current assignee: Sany Robot Technology Co Ltd
Priority date: 2020-04-29
Filing date: 2020-04-29
Publication date: 2020-07-14

Abstract

The invention relates to the field of transfer equipment, in particular to a lifting module and an AGV; the AGV comprises an AGV body and a lifting module arranged on the AGV body; the lifting module comprises a lifting device, an upper cover and a lower cover, the upper cover is provided with an upper accommodating cavity, the lower cover is provided with a lower accommodating cavity, and the lifting device can be matched with the upper accommodating cavity and the lower accommodating cavity simultaneously; the lifting device is used for driving the upper cover and the lower cover to move away from or close to each other. The lifting module is high in integration degree and convenient to assemble on the AGV trolley.

Description

Lifting module and AGV dolly

Technical Field

The invention relates to the field of transfer equipment, in particular to a lifting module and an AGV.

Background

An Automated Guided Vehicle (AGV), also called an unmanned transport Vehicle, an automatic Guided Vehicle, a laser Guided Vehicle, etc., can autonomously complete the transport of goods under the control of a dispatching system. The AGV carts provided in the related art are required to have a lifting function to lift or lower the articles during the process of transporting the articles.

However, the lifting device provided by the related art has low integration degree and is not easy to be assembled on the AGV trolley.

Disclosure of Invention

The invention aims to provide a lifting module and an AGV.

The embodiment of the invention is realized by the following steps:

in a first aspect, an embodiment of the present invention provides a lifting module, including a lifting device, an upper cover and a lower cover, where the upper cover is provided with an upper accommodating cavity, the lower cover is provided with a lower accommodating cavity, and the lifting device can be simultaneously matched with the upper accommodating cavity and the lower accommodating cavity; the lifting device is used for driving the upper cover and the lower cover to move away from or close to each other.

In an alternative embodiment, the lifting device comprises a scissor lift mechanism, the scissor lift mechanism is simultaneously matched with the upper accommodating cavity and the lower accommodating cavity, and the scissor lift mechanism has an open state and a closed state; when the scissor-fork type lifting mechanism is in an open state, the upper cover and the lower cover are far away from each other; when the scissor lift mechanism is in a closed state, the upper cover and the lower cover are close to each other.

In an alternative embodiment, the upper and lower covers snap into one another when the scissor lift mechanism is in the closed position.

In an optional embodiment, the lifting device comprises a transmission part, a driving part and at least two scissor-type lifting mechanisms, the at least two scissor-type lifting mechanisms are sequentially distributed at intervals along the length direction of the lower cover, and the at least two scissor-type lifting mechanisms are simultaneously matched with the upper accommodating cavity and the lower accommodating cavity;

the at least two scissor type lifting mechanisms are in transmission connection through the transmission parts, the driving part is in transmission connection with one of the scissor type lifting mechanisms and is used for driving the corresponding scissor type lifting mechanism to switch between the opening state and the closing state and driving the transmission parts to drive the other scissor type lifting mechanisms to switch between the opening state and the closing state synchronously so as to enable the upper cover and the lower cover to be far away from or close to each other.

In an alternative embodiment, the lifting device comprises two scissor type lifting mechanisms, each scissor type lifting mechanism comprises a sliding groove and a sliding shaft in sliding fit with the sliding groove;

two ends of the transmission part are respectively connected with sliding shafts of the two scissor-fork type lifting mechanisms; the driving part is in transmission connection with the sliding shaft of one of the scissor type lifting mechanisms and is used for driving the corresponding sliding shaft to slide along the length extending direction of the sliding groove, so that the corresponding scissor type lifting mechanism is driven to switch between the opening state and the closing state, the driving part is driven to drive the other sliding shaft to slide in the corresponding sliding groove, the other scissor type lifting mechanism is driven to synchronously switch between the opening state and the closing state, and the upper cover and the lower cover are far away from or close to each other.

In an alternative embodiment, the driving member is fixedly connected to at least one of the upper cover and the lower cover.

In an alternative embodiment, the upper cover is removably engaged with the lifting device.

In a second aspect, an embodiment of the present invention provides an AGV cart, including an AGV cart body and the lifting module in any one of the foregoing embodiments; lifting module sets up in the top of AGV dolly body.

In an optional implementation mode, a mounting groove is formed in the top of the AGV trolley body, and the lower cover is arranged in the mounting groove.

In an alternative embodiment, the AGV includes at least two lift modules spaced apart along the width of the lower cover at the top of the AGV body.

The lifting module provided by the embodiment of the invention has the beneficial effects that: the lifting module provided by the embodiment of the invention comprises an upper cover and a lower cover, wherein the upper cover is provided with an upper accommodating cavity, the lower cover is provided with a lower accommodating cavity, a lifting device of the lifting module can be matched with the upper accommodating cavity and the lower accommodating cavity at the same time, and the lifting device is used for driving the upper cover and the lower cover to be far away from or close to each other; when the upper cover is close to the lower cover, at least part of the lifting device is accommodated in the upper accommodating cavity and the lower accommodating cavity, so that the lifting device can be stably matched with the upper cover and the lower cover; when assembling the lifting module on the AGV dolly, can make the lower cover be close to the upper cover to set up the lower cover in the AGV dolly, can be convenient for assemble lifting module whole in the AGV dolly, and need not assemble elevating gear's relevant part in the AGV dolly alone, help the lifting module integration to be whole module, improve its integrated degree, make it be convenient for assemble in the AGV dolly.

The AGV of the embodiment of the invention has the beneficial effects that: the AGV comprises the lifting module, and the lifting module is convenient to assemble on an AGV body.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic diagram of an AGV configuration in an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a lifting module according to an embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of a scissor lift mechanism in an embodiment of the invention.

Icon: 010-a trolley; 100-trolley body; 200-a lifting module; 110-a mounting groove; 300-a lifting device; 210-an upper cover; 220-lower cover; 211-upper receiving chamber; 221-a lower receiving cavity; 310-scissor lift mechanism; 320-a transmission; 330-a drive member; 311-a chute; 312-a sliding shaft; 340-scissor lift assembly; 341-first link; 342-a second link; 343-a third link; 344 — a first axis; 345-a fourth link; 346-a second axis; 347-long slot; 348-a third axis; 349-fourth axis.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention 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 present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments 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.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "upper", "lower", and the like refer to orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1, the present embodiment provides an AGV cart 010(Automated Guided Vehicle, also called an Automated Guided Vehicle, an automatic Guided Vehicle, a laser Guided Vehicle, etc.), which can autonomously complete the transportation of goods under the control of a dispatching system.

In order to facilitate the transportation of the articles, the AGV provided in the related art is provided with a lifting device for driving the articles to ascend or descend, such as: motor, ball, linear bearing etc. and the correlation technique is usually with these elevating gear direct assembly in the dolly body of AGV dolly, for example with the bolt directly with the lead screw fixed set up in the dolly body, then will be used for supporting the platform and the elevating gear fixed connection of article again, and then make the elevating gear's of correlation technique AGV dolly assembly complicated in structure, the whole assembly of being inconvenient.

Referring to fig. 1, the AGV 010 of the present embodiment includes an AGV body 100 and a lifting module 200, wherein the lifting module 200 is disposed on the top of the AGV body 100 for driving the articles to ascend or descend. Because the lifting module 200 is assembled in the AGV car body 100 as an integrated whole, the difficulty of assembling the lifting module 200 in the AGV car body 100 can be reduced, and the lifting module 200 can be assembled in the AGV car body 100 relatively simply.

The top of the AGV trolley body 100 is provided with a mounting groove 110, and the lifting module 200 is arranged in the mounting groove 110; therefore, the stability of the lifting module 200 arranged on the AGV trolley body 100 can be improved. With the lifting module 200 wholly embedded in the mounting slot 110, the use of fasteners for fixedly connecting the lifting module to the AGV cart body 100 can be reduced, so that the assembly of the lifting module 200 is relatively simple.

The AGV trolley 010 comprises at least two lifting modules 200, the specific number of the lifting modules 200 can be selected according to the requirement, and the at least two lifting modules 200 are arranged at the top of the AGV trolley body 100 at intervals; thus, the article can be stably driven to ascend or descend by using at least two lifting modules 200.

In order to stably set the lifting modules 200 at the top of the AGV body 100, the number of the mounting slots 110 formed at the top of the AGV body 100 is consistent with the number of the lifting modules 200, and one lifting module 200 can be assembled in each mounting slot 110. In this embodiment, two mounting slots 110 are formed in the top of the AGV cart body 100, the AGV cart 010 includes two lifting modules 200, and the two lifting modules 200 and the two mounting slots 110 are arranged in a one-to-one correspondence manner; thus, the two lifting modules 200 can be used to stably trend the article to ascend or descend.

Referring to fig. 2, the lifting module 200 of the present embodiment includes a lifting device 300, an upper cover 210 and a lower cover 220, wherein the upper cover 210 has an upper accommodating cavity 211, the lower cover 220 has a lower accommodating cavity 221, and the lifting device 300 can be simultaneously matched with the upper accommodating cavity 211 and the lower accommodating cavity 221; the lifting device 300 serves to drive the upper and lower covers 210 and 220 away from or toward each other. Wherein the lower lid 220 can be assembled to the AGV body 100, the upper lid 210 can be used to support the items, and when the upper lid 210 approaches the lower lid 220, the lifting device 300 is at least partially received in the upper receiving cavity 211 and the lower receiving cavity 221, so that the lifting device can be stably engaged with the upper lid 210 and the lower lid 220; when assembling lifting module 200 on AGV dolly 010, can make lower cover 220 be close to upper cover 210 to set up lower cover 220 in the AGV dolly, can be convenient for with lifting module 200 whole assembly and AGV dolly 010, and need not assemble lifting device 300's relevant part alone with the AGV dolly, help the integrated whole module of lifting module, improve its integrated degree, make it be convenient for assemble in AGV dolly 010.

In order to improve the safety of the lifting device 300 and prevent the lifting device 300 from being collided by external hard objects when not in operation, when the lifting device 300 is in a shutdown state, the upper cover 210 and the lower cover 220 are buckled, so that the lifting device 300 is completely shielded between the upper cover 210 and the lower cover 220, and the collision of the lifting device 300 by external hard objects can be reduced. When the lifting module 200 is assembled, the upper cover 210 and the lower cover 220 are fastened to completely shield the lifting device 300 between the upper cover 210 and the lower cover 220, so that the lifting module 200 can be more conveniently assembled on the AGV cart body 100.

In order to prevent the lifting module 200 assembled on the AGV body 100 from interfering with the ascending or descending of the articles, the lower lid 220 of the lifting module 200 is disposed in the mounting slot 110, and the upper lid 210 is used for supporting the articles; when the lifting device 300 of the lifting module 200 drives the upper cover 210 to move away from or close to the lower cover 220, the upper cover 210 can synchronously drive the articles supported by the upper cover to ascend or descend.

It should be noted that, in order to make the lifting module 200 more stably set up on the top of the AGV car body 100, the mounting groove 110 and the lower cover 220 are adapted to each other on the top of the AGV car body 100, so that the lower cover 220 embedded in the mounting groove 110 is not easy to shake, i.e. the lifting module can be stably set up on the top of the AGV car body 100. The fitting of the mounting groove 110 and the lower cover 220 means that: the shape and size of the mounting groove 110 are matched with those of the lower cover 220, so that the lower cover 220 can be just embedded in the mounting groove 110 without random shaking.

It should be noted that, when at least two lifting modules 200 are arranged on the top of the AGV cart body 100, at least two lifting modules 200 are arranged on the top of the AGV cart body 100 at intervals along the extending direction of the width of the lower cover 220; thus, the article can be stably supported by the at least two lifting modules 200 and driven to be lifted or lowered. Further, in order to make the at least two lifting modules 200 support the article more stably, the at least two lifting modules 200 are uniformly spaced at the top of the AGV cart 010.

It should be further noted that when the AGV cart 010 includes at least two lifting modules 200, the at least two lifting modules 200 may be spaced along the extending direction of the length of the lower cover 220, or may be disposed at an angle with the extending direction of the length of the lower cover 220, and the like, and are not limited in this respect.

Referring to fig. 2, the lifting device 300 of the present embodiment includes a scissor lift mechanism 310, the scissor lift mechanism 310 is simultaneously engaged with the upper accommodating cavity 211 and the lower accommodating cavity 221, and the scissor lift mechanism 310 has an open state and a closed state; when scissor lift 310 is in the open position, upper cover 210 and lower cover 220 are moved away from each other; when scissor lift 310 is in the closed position, upper cover 210 and lower cover 220 are adjacent to each other; in this manner, the scissor lift mechanism 310 may be used to drive the upper lid 210 up or down relative to the lower lid 220, and thus the item supported by the upper lid 210.

Further, when the scissor lift mechanism 310 is in a closed state, the upper cover 210 and the lower cover 220 are engaged with each other; it should be understood that the scissor lift mechanism 310 described above is in a closed state, meaning that the lift device 300 is in a stopped state; thus, when the lifting device 300 is not needed to lift an article, the scissor-type lifting mechanism 310 is shielded between the upper cover 210 and the lower cover 220, so that the scissor-type lifting mechanism 310 is prevented from being collided by external hard objects, and the damage to the scissor-type lifting mechanism 310 is reduced.

It should be noted that in this embodiment, when the scissor lift mechanism 310 is in the closed position, the upper lid 210 protrudes from the top of the AGV body 100; thus, articles transferred by the AGV trolley 010 can be always supported by the upper cover 210 of the lifting device 300, and abrasion and the like to the top of the AGV trolley body 100 are avoided.

In order to make the lifting device 300 more effectively and stably drive the article supported by the lifting device to ascend or descend; referring to fig. 2, the lifting device 300 includes a transmission member 320, a driving member 330, and at least two scissor-type lifting mechanisms 310, wherein the at least two scissor-type lifting mechanisms 310 are sequentially spaced along the length direction of the lower cover 220, and the at least two scissor-type lifting mechanisms 310 are simultaneously matched with the upper accommodating cavity 211 and the lower accommodating cavity 221; at least two scissor lift mechanisms 310 are in transmission connection through a transmission member 320, and a driving member 330 is in transmission connection with one scissor lift mechanism 310 and is used for driving the corresponding scissor lift mechanism 310 to switch between the opening state and the closing state, and driving the transmission member to drive the other scissor lift mechanism 310 to synchronously switch between the opening state and the closing state, so that the upper cover 210 and the lower cover 220 are far away from or close to each other. In this way, one driving member 330 can be used to drive at least two scissor lift mechanisms 310 to synchronously switch between the open state and the closed state, so as to stably drive the upper cover 210 away from or close to the lower cover 220, thereby stably driving the article supported by the upper cover 210 to ascend or descend.

Referring to fig. 3, in the present embodiment, the lifting device 300 includes two scissor-type lifting mechanisms 310, each scissor-type lifting mechanism 310 includes a sliding slot 311 and a sliding shaft 312 slidably engaged with the sliding slot 311; two ends of the transmission member 320 are respectively connected with the sliding shafts 312 of the two scissor-type lifting mechanisms 310; the driving member 330 is in transmission connection with the sliding shaft 312 of one of the scissor lift mechanisms 310, and is configured to drive the corresponding sliding shaft 312 to slide along the length extending direction of the sliding slot 311, so as to drive the corresponding scissor lift mechanism 310 to switch between the open state and the closed state, and drive the driving member 320 to drive the other sliding shaft 312 to slide in the corresponding sliding slot 311, so as to drive the other scissor lift mechanism 310 to synchronously switch between the open state and the closed state, so as to move the upper cover 210 and the lower cover 220 away from or close to each other. In this way, it is ensured that the two scissor lift mechanisms 310 can be stably driven to synchronously switch between the open state and the closed state by using one driving member 330, so as to stably drive the upper cover 210 to approach or move away from the lower cover 220, thereby stably driving the article supported by the upper cover 210 to ascend or descend.

Referring to fig. 3, in the present embodiment, each scissor lift mechanism 310 includes two scissor lift assemblies 340, the two scissor lift assemblies 340 are spaced apart from each other along the width direction of the lower cover 220, and the sliding shaft 312 is connected between the two scissor lift assemblies 340, so that the two scissor lift assemblies 340 can be synchronously switched between the open state and the closed state.

Referring to fig. 3, scissor lift assembly 340 includes a first link 341, a second link 342, and a third link 343, and scissor lift mechanism 310 further includes a first shaft 344; the first and second links 341 and 342 are rotatably connected by a first shaft 344, that is, the first and second links 341 and 342 are simultaneously rotatably connected with the first shaft 344, specifically, the middle portions of the first and second links 341 and 342 are simultaneously rotatably connected with the first shaft 344; one end of the third link 343 is provided with a sliding slot 311, and a first end of the first link 341 is rotatably connected with the sliding shaft 312, and the other end of the third link 343 is rotatably connected with a first end of the second link 342; the second end of the first link 341 and the second end of the second link 342 are both matched with the upper receiving cavity 211, that is, the second end of the first link 341 and the second end of the second link 342 can both extend into the upper receiving cavity 211 to be matched with the upper cover 210. Thus, when the driving member 330 drives the sliding shaft 312 to move along the length extending direction of the sliding slot 311, the first end of the first link 341 may be driven to approach the first end of the second link 342, that is, the second end of the first link 341 and the second end of the second link 342 approach each other and lift up, that is, the scissor lift mechanism 310 is switched to the open state to drive the upper cover 210 to ascend, or the first end of the first link 341 may be driven to move away from the first end of the second link 342, that is, the second end of the first link 341 and the second end of the second link 342 move away from each other and descend, that is, the scissor lift mechanism 310 is switched to the closed state to drive the upper cover 210 to descend.

Referring to fig. 3, the scissor lift assembly 340 further comprises a fourth link 345, and the scissor lift mechanism 310 further comprises a second shaft 346; one end of the fourth link 345 is provided with a long groove 347, and the length extending direction of the long groove 347 is the same as that of the sliding groove; the second end of the second link 342 is rotatably connected to the second shaft 346, and the second shaft 346 is slidably inserted into the slot 347; an end of the fourth link 345 remote from the elongated slot 347 is rotatably connected to a second end of the first link 341; the fourth link 345 is engaged with the upper receiving chamber 211, i.e., the fourth link 345 can extend into the upper receiver to engage with the upper cover 210. When the driving member 330 drives the sliding shaft 312 to move along the length extension direction of the sliding slot 311, the first end of the first link 341 can be driven to approach or separate from the first end of the second link 342, that is, the second end of the first link 341 and the second end of the second link 342 approach or separate from each other, and the second shaft 346 can slide in the long slot 347, so as to drive the upper cover 210 to ascend or descend.

Referring to fig. 3, the scissor lift assembly 340 further includes a third shaft 348 and a fourth shaft 349, wherein the first end of the second link 342 is rotatably connected to an end of the third link 343 away from the sliding slot via the third shaft 348, and the second end of the first link 341 is rotatably connected to an end of the fourth link 345 away from the elongated slot 347 via the fourth shaft 349. Further, the scissor lift mechanism 310 of the present embodiment includes two scissor lift assemblies 340 that are spaced and distributed oppositely, the two scissor lift assemblies 340 have similar structures, two ends of the sliding shaft 312 are respectively in sliding fit with the sliding slot 311 formed on the third connecting rod 343 of the two scissor lift assemblies 340, and two ends of the sliding shaft 312 are respectively rotatably connected with the first end of the first connecting rod 341 of the two scissor lift assemblies 340; both ends of the first shaft 344 are rotatably connected with the middle parts of the first and second connecting rods 341 and 342 of the two scissor type lifting assemblies 340, respectively; both ends of the second shaft 346 are respectively in sliding fit with the elongated slots 347 of the fourth connecting rods 345 of the two scissor lift assemblies 340, and both ends of the second shaft 346 are respectively rotatably connected with the second ends of the second connecting rods 342 of the two scissor lift assemblies 340; both ends of the third shaft 348 are rotatably connected with the first ends of the second connecting rods 342 of the two scissor type lifting assemblies 340, respectively; both ends of the fourth shaft 349 are rotatably connected to the second ends of the first links 341 of the two scissor lift assemblies 340, respectively. In this manner, the sliding shaft 312, the first shaft 344, the second shaft 346, the third shaft 348 and the fourth shaft 349 may be utilized to improve the structural stability of the two scissor lift assemblies 340, and also ensure that the two scissor lift assemblies 340 are synchronously switched between the open state and the closed state to stably drive the upper lid 210 to ascend or descend relative to the lower lid 220.

To further simplify the assembly of the lifting device 300, the third link 343 of the scissor lift assembly 340 abuts the lower cover 220, i.e. the third link 343 extends into the lower receiving cavity 221 to abut the lower cover 220; the fourth link 345 abuts the upper cover 210, that is, the fourth link 345 extends into the upper receiving cavity 211 to abut the upper cover 210. In other embodiments, the third link 343 and the fourth link 345 may be further bonded, clamped, welded, or connected with a fastener, such as a bolt or a screw, to the lower cover 220 and the upper cover 210, respectively; in these embodiments, although the difficulty of assembly is relatively increased, the structural stability of the lifting device 300 can be improved.

It should be noted that, in this embodiment, the upper cover 210 is detachably engaged with the lifting device 300, specifically, the upper cover 210 is detachably engaged with the scissor lift mechanism 310; therefore, the upper cover 210 with proper size and shape can be replaced according to the weight, size and the like of the articles to be transported by the AGV trolley 010, so that the upper cover 210 can provide better support for the articles.

In order to improve stability of the driving member 330, the driving member 330 is fixedly connected to at least one of the upper cover 210 and the lower cover 220. In this embodiment, the driving member 330 is fixedly connected to the lower cover 220, and the driving member 330 is located in the lower accommodating cavity 221. In other embodiments, the driving member 330 may also be located in the upper receiving cavity 211 and fixedly connected to the upper cover 210.

The driving member 330 can be selected according to the requirement; the driving member 330 of this embodiment is an electric push rod, and the electric push rod is located between the two scissor lift assemblies 340 of the corresponding scissor lift mechanism 310 along the width direction of the lower cover 220; when the electric push rod extends, the first end of the first link 341 can be driven to approach the first end of the second link 342, i.e. the scissor lift assembly 340 is switched to the open state; when the electric push rod is shortened, the first end of the first link 341 can be driven away from the first end of the second link 342, i.e., the scissor lift assembly 340 is switched to the closed state. In other embodiments, the driving member 330 may also be a hydraulic cylinder, a linear motor, etc., and is not limited in particular.

In order to enable the two scissor lift mechanisms 310 of the lift module 200 to be stably and synchronously switched between the open state and the closed state, the scissor lift mechanism 310 of the present embodiment includes two transmission members 320, the two transmission members 320 are respectively spaced along the width direction of the lower cover 220, and two ends of each transmission member 320 are respectively connected to two sliding shafts 312 of the scissor lift mechanisms 310 which are distributed along the length direction of the lower cover 220; in this manner, two transmission members 320 can be used to effectively drive the two scissor lift mechanisms 310 to switch between the open position and the closed position simultaneously.

The transmission member 320 of the present embodiment is a transmission connecting rod, and two ends of the transmission connecting rod in the length direction are respectively connected to the two sliding shafts 312; the transmission link is located in the lower accommodating cavity 221 of the lower cover 220, so that the transmission link can be prevented from being damaged by collision and the like.

The operating principle of the AGV trolley 010 according to this embodiment includes: the upper lid 210 of the lifting module 200 can support the articles to be transported, and the lifting device 300 of the lifting module 200 can drive the upper lid 210 to move away from or close to the lower lid 220, so as to lift or lower the articles, and the AGV cart body 100 can drive the lifting module 200 and the articles supported by the lifting module to move synchronously, so as to transport the articles.

To sum up, the lifting assembly of this embodiment can assemble in AGV dolly body 100 as whole module, has simplified the assembly of AGV dolly 010.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A lifting module is characterized by comprising a lifting device, an upper cover and a lower cover, wherein the upper cover is provided with an upper accommodating cavity, the lower cover is provided with a lower accommodating cavity, and the lifting device can be matched with the upper accommodating cavity and the lower accommodating cavity simultaneously; the lifting device is used for driving the upper cover and the lower cover to move away from or close to each other.

2. The lift module of claim 1, wherein the lift device comprises a scissor lift mechanism that cooperates with both the upper and lower receiving cavities, the scissor lift mechanism having an open state and a closed state; when the scissor-type lifting mechanism is in the open state, the upper cover and the lower cover are far away from each other; when the scissor lift mechanism is in the closed state, the upper cover and the lower cover are close to each other.

3. A lifting module according to claim 2, wherein the upper and lower covers are snap-fitted to each other when the scissor lift mechanism is in the closed state.

4. The lifting module according to claim 2, wherein the lifting device comprises a transmission member, a driving member and at least two scissor lift mechanisms, the at least two scissor lift mechanisms are sequentially distributed at intervals along the length direction of the lower cover, and the at least two scissor lift mechanisms are simultaneously matched with the upper accommodating cavity and the lower accommodating cavity;

at least two scissor type lifting mechanisms are in transmission connection through the transmission part, the driving part is in transmission connection with one of the scissor type lifting mechanisms and is used for driving the corresponding scissor type lifting mechanism to be switched between the opening state and the closing state and driving the transmission part to drive the other scissor type lifting mechanism to be switched between the opening state and the closing state synchronously so as to enable the upper cover and the lower cover to be far away from or close to each other.

5. The lifting module according to claim 4, wherein the lifting device comprises two scissor lift mechanisms, the scissor lift mechanisms comprising a sliding slot and a sliding shaft slidably engaged with the sliding slot;

the two ends of the transmission part are respectively connected with the sliding shafts of the two scissor-type lifting mechanisms; the driving piece is in transmission connection with the sliding shaft of one of the scissor type lifting mechanisms and is used for driving the corresponding sliding shaft to slide along the length extending direction of the sliding groove, so that the corresponding scissor type lifting mechanism is driven to switch between the opening state and the closing state, and the driving piece is driven to drive the other sliding shaft to slide in the corresponding sliding groove, so that the other scissor type lifting mechanism is driven to synchronously switch between the opening state and the closing state, and the upper cover and the lower cover are far away from or close to each other.

6. The lift module of claim 4, wherein the drive member is fixedly attached to at least one of the upper cover and the lower cover.

7. A lifting module according to any of claims 1-6, characterized in that the upper cover is detachably engaged with the lifting device.

8. An AGV comprising an AGV cart body and the lift module of any of claims 1-7; lifting module set up in the top of AGV dolly body.

9. The AGV of claim 8, wherein a mounting slot is formed in the top of the AGV body, and the lower cover is disposed in the mounting slot.

10. The AGV of claim 8, wherein said AGV includes at least two of said lift modules, at least two of said lift modules being spaced apart along the direction of extent of the width of said lower lid at the top of said AGV body.