Trolley type conveyor dragged by multiple AGVs (Automatic Guided Vehicles)
By designing a trolley-type conveyor and utilizing the connection structure and positioning device between AGV vehicles and trolleys, the problems of bulky structure and high cost in existing technologies are solved, achieving lightweight and low-cost logistics transportation.
Patent Information
- Application Number
- CN202511288634.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-10
- Publication Date
- 2025-12-12
AI Technical Summary
Existing multi-AGV vehicle-driven trolley conveyors are bulky, large in size, and expensive, making them unsuitable for transporting internal parts within workshops.
The trolley-type conveyor is used, with the weight of the workpiece borne by the trolley. Multiple AGVs are connected to the trolley via their interfaces. Stable operation of the trolley is achieved using a caster wheel device and a lifting and positioning pin device. The AGVs serve as material delivery vehicles, with a simple structure, small size, and low cost.
This results in a conveyor with a simple structure, small size, and low cost, making it suitable for the logistics transportation of parts within the workshop.
Smart Images

Figure CN121106516A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of conveying machinery technology. Specifically, it is a trolley-type conveyor pulled by multiple AGV vehicles. Background Technology
[0002] Existing conveyors that use multiple AGVs to drive the same trolley have the weight of the workpieces borne by the AGVs during operation. This results in AGVs being bulky, cumbersome, and costly, making them unsuitable for transporting internal parts within a workshop. Summary of the Invention
[0003] In view of the problems existing in the prior art, the purpose of the present invention is to provide a trolley-type conveyor pulled by multiple AGV vehicles to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, the present invention provides the following technical solution: The workshop 1 includes a workpiece 1A, a conveying system 1B, and a ground 1C. The conveying system 1B includes a trolley 2 and an AGV 3, both of which move on the ground 1C. The trolley 2 includes a carrying platform 2A and a non-powered walking device 2B. The carrying platform 2A includes a vehicle interface 4. The workpiece 1A is placed above the carrying platform 2A, and the walking device 2B is installed on the carrying platform 2A. The AGV 3 includes a vehicle body 3A, which includes a platform interface 3B. Through the docking of the platform interface 3B and the vehicle interface 4, two or more AGVs 3 can drive the operation of the same trolley 2.
[0005] As a further aspect of the present invention: the trolley-type conveyor towed by multiple AGV vehicles is characterized in that the traveling device 2B includes a caster wheel device.
[0006] As a further aspect of the present invention: the vehicle interface 4 includes a notch 4A located around the bearing platform 2A, and the platform interface 3B includes the outer contour 3B1 of the vehicle body 3A; when the outer contour 3B1 is inserted into the notch 4A, the AGV vehicle 3 can drive the trolley 2 to run together.
[0007] As a further aspect of the present invention: the vehicle interface 4 includes the outer contour of the carrying platform 2A, and multiple AGV vehicles 3 run with the trolley 2 between them.
[0008] As a further aspect of the present invention: the vehicle interface 4 includes a recess 4B on the side of the bearing platform 2A, and the platform interface 3B includes a boss 3B2 located on the outside of the vehicle body 3A. When the boss 3B2 extends into the recess 4B, the AGV vehicle 3 can run together with the trolley 2.
[0009] As a further aspect of the present invention: the ground 1C includes a lifting and positioning pin device 5, and the bottom surface of the bearing platform 2A includes a positioning hole 6. The positioning of the trolley 2 is achieved by lifting and inserting the pin shaft in the lifting and positioning pin device 5 into the positioning hole 6.
[0010] As a further aspect of the present invention, the AGV vehicle 3 is also used as a material delivery vehicle in workshop 1.
[0011] As a further aspect of the present invention: the trolley 2 includes an air cushion transport vehicle, and the walking device 2B in the air cushion transport vehicle is an inflated airbag.
[0012] In summary, compared with the prior art, the present invention has a simple structure, small size, and low cost because the weight of the workpiece is borne by the trolley, making it very suitable for the logistics transportation of parts within the workshop. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure in which the AGV vehicle 3 is inserted into the vehicle interface 4 of the carrying platform 2A through the platform interface 3B, so that the AGV vehicle 3 can pull the trolley 2. Figure 2 Figure 1 is a top view and a structural schematic diagram of two AGV vehicles 3 pulling the trolley 2. Figure 3 This is a schematic diagram of a structure with notches 4A around the support platform 2A; Figure 4 The diagram shows a parallel layout structure with two rows of trolleys 2 in the middle, and two AGV vehicles 3 pushing the trolleys 2 into the workstation. Figure 5 This is a schematic diagram of the structure in which two AGV vehicles 3 are inserted into the notch 4A on the outer contour 3B1, driving the trolley 2 to run. Figure 6 This is a schematic diagram of the structure of the AGV vehicle 3 carrying the trolley 2 after the boss 3B2 extends into the cavity 4B; Figure 7 This is a schematic diagram of the structure in which the trolley 2 is positioned by lifting and inserting the pin shaft in the lifting and positioning pin device 5 into the positioning hole 6.
[0014] In the diagram, 1 represents the workshop, 1A represents the workpiece, 1B represents the conveyor system, and 1C represents the ground. 2 is the trolley, 2A is the support platform, and 2B is the traveling device. 3 represents the AGV vehicle, 3A represents the vehicle body, 3B represents the platform interface, 3B1 represents the outer contour, and 3B2 represents the boss. 4 is the car interface, 4A is the notch, and 4B is the cavity. 5 is the lifting and positioning pin device, and 6 is the positioning hole. Detailed Implementation
[0015] The technical solutions of the embodiments of the present invention will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.
[0016] Please see Figures 1-7 In this embodiment of the invention, the workshop 1 includes a workpiece 1A, a conveying system 1B, and a ground 1C. The conveying system 1B includes a trolley 2 and an AGV 3, both of which move on the ground 1C. The trolley 2 includes a carrying platform 2A and a non-powered walking device 2B. The carrying platform 2A includes a vehicle interface 4. The workpiece 1A is placed above the carrying platform 2A, and the walking device 2B is installed on the carrying platform 2A. The AGV 3 includes a vehicle body 3A, which includes a platform interface 3B. Through the docking of the platform interface 3B and the vehicle interface 4, two or more AGVs 3 can drive the operation of the same trolley 2.
[0017] It should be noted that workpiece 1A can be engineering machinery, agricultural machinery, or special vehicles.
[0018] The walking device 2B includes a caster wheel device.
[0019] The vehicle interface 4 includes notches 4A located around the support platform 2A, and the platform interface 3B includes the outer contour 3B1 of the vehicle body 3A; when the outer contour 3B1 is inserted into the notch 4A, the AGV vehicle 3 can drive the trolley 2 to run together.
[0020] The vehicle interface 4 includes the outer contour of the support platform 2A, and multiple AGV vehicles 3 run with the trolley 2 between them.
[0021] The vehicle interface 4 includes a recess 4B on the side of the carrying platform 2A, and the platform interface 3B includes a boss 3B2 located on the outside of the vehicle body 3A. When the boss 3B2 extends into the recess 4B, the AGV vehicle 3 can move together with the trolley 2.
[0022] The ground 1C includes a lifting and positioning pin device 5, and the bottom surface of the supporting platform 2A includes a positioning hole 6. The positioning of the trolley 2 is achieved by lifting and inserting the pin shaft in the lifting and positioning pin device 5 into the positioning hole 6.
[0023] The AGV vehicle 3 mentioned above is also a material delivery vehicle used in workshop 1.
[0024] The trolley 2 includes an air cushion transport vehicle, and the walking device 2B in the air cushion transport vehicle is the inflated airbag.
[0025] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. In this invention, it should also be noted that the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, an integrally formed connection, a mechanical connection, or an indirect connection through an intermediate medium. The specific meaning of the terms in this invention can be understood according to the specific circumstances.
[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A trolley-type conveyor pulled by multiple AGV vehicles, characterized in that: The workshop (1) includes a workpiece (1A), a conveying system (1B) and a ground (1C). The conveying system (1B) includes a trolley (2) and an AGV (3). Both the trolley (2) and the AGV (3) move on the ground (1C). The trolley (2) includes a carrying platform (2A) and a non-powered walking device (2B). The carrying platform (2A) includes a vehicle interface (4). The workpiece (1A) is placed above the carrying platform (2A), and the walking device (2B) is installed on the carrying platform (2A). The AGV (3) includes a vehicle body (3A), and the vehicle body (3A) includes a platform interface (3B). By connecting the platform interface (3B) with the vehicle interface (4), two or more AGVs (3) can drive the same trolley (2).
2. A trolley-type conveyor pulled by multiple AGV vehicles according to claim 1, characterized in that: The aforementioned walking device (2B) includes a caster wheel assembly.
3. A trolley-type conveyor pulled by multiple AGV vehicles according to claim 2, characterized in that: The vehicle interface (4) includes a notch (4A) around the support platform (2A), and the platform interface (3B) includes the outer contour (3B1) of the vehicle body (3A). When the outer contour (3B1) is inserted into the notch (4A), the AGV vehicle (3) can drive the trolley (2) to run together.
4. A trolley-type conveyor pulled by multiple AGV vehicles according to claim 2, characterized in that: The vehicle interface (4) includes the outer contour of the carrying platform (2A), and multiple AGV vehicles (3) sandwich the trolley (2) for operation.
5. A trolley-type conveyor pulled by multiple AGV vehicles according to claim 2, characterized in that... The vehicle interface (4) includes a cavity (4B) on the side of the carrying platform (2A), and the platform interface (3B) includes a boss (3B2) located on the outside of the vehicle body (3A). When the boss (3B2) extends into the cavity (4B), the AGV vehicle (3) can carry the trolley (2) together.
6. A trolley-type conveyor pulled by multiple AGVs according to claim 3, 4, or 5, characterized in that: The ground (1C) includes a lifting and positioning pin device (5), and the bottom surface of the bearing platform (2A) includes a positioning hole (6). The positioning of the trolley (2) is achieved by lifting and inserting the pin shaft in the lifting and positioning pin device (5) into the positioning hole (6).
7. A trolley-type conveyor pulled by multiple AGV vehicles according to claim 6, characterized in that: The AGV vehicle (3) mentioned above is also a material delivery vehicle used in the workshop (1).
8. A trolley-type conveyor pulled by multiple AGV vehicles according to claim 1, characterized in that... The trolley (2) includes an air cushion transport vehicle, and the walking device (2B) in the air cushion transport vehicle is the inflated airbag.