Automatic guided vehicle (AGV) capable of preventing goods from toppling over
By designing unloading and clamping mechanisms on the AGV trolley and using hydraulic cylinders and motors for drive, the problem of cargo boxes tipping over when the AGV trolley suddenly stops is solved, thus achieving stable transportation and automatic unloading of goods.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- EWAY INTELLIGENT TECH (CHANGZHOU) CO LTD
- Filing Date
- 2025-05-26
- Publication Date
- 2026-05-08
AI Technical Summary
When the AGV suddenly stops, the cargo box may lose balance due to inertia and tip over, posing a safety hazard.
An AGV trolley including an unloading mechanism and a clamping mechanism was designed. The rotation of the unloading plate is controlled by a hydraulic cylinder and the movement of the clamping frame is driven by a motor to realize the automatic clamping and unloading of the cargo box and prevent it from tipping over.
It effectively prevents goods from tipping over during transportation, ensures transportation safety, and enables automatic unloading operations.
Smart Images

Figure CN224211166U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of transportation equipment, specifically an AGV (Automated Guided Vehicle) trolley designed to prevent cargo from tipping over. Background Technology
[0002] AGVs (Automated Guided Vehicles) are intelligent devices that enable unmanned material handling through navigation systems, widely used in manufacturing, warehousing and logistics, and healthcare. Their core functions include autonomous path planning, obstacle avoidance, and precise docking, replacing traditional manual transport and improving efficiency and safety. Based on their navigation methods, they can be categorized as magnetic, laser, and vision-based, with load capacities ranging from 50kg to 50 tons, supporting 24-hour continuous operation. Modern AGVs integrate IoT and AI technologies, enabling multi-vehicle collaborative scheduling and becoming a core component of smart factories and intelligent logistics.
[0003] AGVs (Automated Guided Vehicles) are widely used in scenarios involving the transport of cargo containers. Some of these containers are relatively lightweight and are typically stacked on the AGV's platform for efficient transport. However, in actual transport, situations requiring emergency braking may arise. When the AGV suddenly stops, due to inertia, the containers, which were originally placed stably on the vehicle, may lose their balance, potentially leading to tipping over. Therefore, this paper proposes an AGV design to prevent cargo tipping. Utility Model Content
[0004] The purpose of this invention is to provide an AGV (Automated Guided Vehicle) that prevents goods from tipping over, thereby solving the problems in the prior art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an AGV trolley for preventing cargo from tipping over, comprising a trolley chassis, a trolley shell fixedly mounted on the trolley chassis, a cargo pallet fixedly mounted on the upper end of the trolley shell, a cargo box provided on the cargo pallet, an unloading mechanism provided at one end of the cargo pallet, the unloading mechanism comprising an unloading plate rotatably mounted on the cargo pallet, a hydraulic cylinder connected to the unloading plate, and a clamping mechanism provided at the other end of the cargo pallet.
[0006] Preferably, the unloading plate further includes a hinge disposed between the unloading plate and the cargo pallet, the cargo pallet has a cylinder notch, the cargo pallet has a movable groove at its edge, both ends of the hydraulic cylinder are rotatably mounted with movable shafts, and a connecting arm is fixedly mounted on the unloading plate.
[0007] Preferably, the trolley housing has a cylinder groove, and the hydraulic cylinder is housed inside the trolley housing through the cylinder groove.
[0008] Preferably, the unloading plate is rotatably mounted on the cargo pallet via a hinge, the hydraulic cylinder passes through the cargo pallet via a cylinder notch, one end of the hydraulic cylinder is rotatably mounted inside the trolley housing via a movable shaft, and the other end of the hydraulic cylinder is rotatably mounted on the connecting arm via a movable shaft.
[0009] Preferably, the clamping mechanism includes a drive screw rotatably mounted inside the trolley housing, a screw slider threaded onto the drive screw, a slide plate fixedly mounted on the screw slider, a clamping frame fixedly mounted at the end of the slide plate, a reinforcing crossbar fixedly mounted between the clamping frame and the slide plate, a drive shaft rotatably mounted at one end of the drive screw, a motor fixedly mounted at one end of the drive shaft, and helical gears provided on both the drive shaft and the drive screw, with the helical gears meshing together in pairs.
[0010] Preferably, a retainer is provided inside the trolley housing, and the drive shaft is rotatably mounted inside the trolley housing via the retainer.
[0011] Preferably, the output end of the motor is provided with a coupling, the drive shaft is fixedly installed at the output end of the motor through the coupling, the lead screw slider is slidably installed on the cargo pallet through a movable slide groove, and the slide plate is movably installed on the upper surface of the cargo pallet through the lead screw slider.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] In this application, after the unloading plate is erected, the cargo boxes can be neatly stacked on the cargo pallet on one side. Then, the motor is started, which drives the drive shaft to rotate. The rotation of the drive shaft, in turn, drives the drive screw to rotate, causing the screw slider to slide forward. The forward movement of the slider causes the clamping frame to move forward along the sliding plate, clamping the cargo boxes and ensuring the stability of the goods on the trolley, preventing tipping.
[0014] In this application, after the cargo box is transported to the predetermined position, the hydraulic cylinder can be retracted. After the hydraulic cylinder retracts, the unloading plate will rotate to a horizontal position. Subsequently, with the unloading plate in a horizontal position, the motor drives the clamping frame to move forward. The forward movement of the clamping frame will push the cargo box forward, causing it to slide down the unloading plate, thereby completing the automatic unloading process. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a partial structural schematic diagram of the present invention;
[0017] Figure 3 This is a schematic diagram of the unloading mechanism of this utility model;
[0018] Figure 4 This is a schematic diagram of the clamping mechanism of this utility model.
[0019] The following are the labeling elements in the diagram: 1. Cargo chassis; 2. Cargo shell; 3. Cargo pallet; 4. Cargo box; 5. Unloading mechanism; 501. Unloading plate; 502. Hinge; 503. Cylinder notch; 504. Connecting arm; 505. Movable slide; 506. Hydraulic cylinder; 507. Movable shaft; 6. Clamping mechanism; 601. Clamping frame; 602. Reinforcing crossbar; 603. Slide plate; 604. Drive screw; 605. Screw slider; 606. Helical gear; 607. Drive shaft; 608. Motor. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] like Figure 1 and Figure 2 As shown, this utility model provides a technical solution for an AGV trolley to prevent cargo from tipping over. It includes a trolley chassis 1, a trolley shell 2 fixedly installed on the trolley chassis 1, a cargo pallet 3 fixedly installed on the upper end of the trolley shell 2, a cargo box 4 provided on the cargo pallet 3, an unloading mechanism 5 provided at one end of the cargo pallet 3, and a clamping mechanism 6 provided at the other end of the cargo pallet 3. By cooperating with the unloading mechanism 5 and the clamping mechanism 6, the cargo box 4 can be clamped on the trolley to prevent the cargo on the trolley from tipping over, and automatic unloading can be achieved.
[0022] like Figure 2 and Figure 3 As shown, the unloading mechanism 5 includes an unloading plate 501 rotatably mounted on the cargo pallet 3, a hydraulic cylinder 506 connected to the unloading plate 501, a hinge 502 disposed between the unloading plate 501 and the cargo pallet 3, a cylinder notch 503 opened on the cargo pallet 3, a movable slide groove 505 opened at the edge of the cargo pallet 3, movable shafts 507 rotatably mounted at both ends of the hydraulic cylinder 506, a connecting arm 504 fixedly mounted on the unloading plate 501, a cylinder groove opened on the trolley housing 2, and the hydraulic cylinder 506 housed in the trolley housing 2 through the cylinder groove.
[0023] Specifically, once the cargo box 4 is transported to a suitable position, the next step is to retract the hydraulic cylinder 506. After the hydraulic cylinder 506 retracts, the unloading plate 501 rotates to a horizontal position. Once the unloading plate 501 is horizontal, the next step is to drive the clamping frame 601 forward via the motor 608. During this forward movement, the clamping frame 601 applies force to push the cargo box 4 forward, causing it to slide down the now horizontal unloading plate 501. Through this series of automated operations, the automatic unloading of the cargo box 4 is ultimately achieved.
[0024] like Figure 2 and Figure 4 As shown, the clamping mechanism 6 includes a drive screw 604 rotatably mounted inside the trolley housing 2, a screw slider 605 threaded onto the drive screw 604, a slide plate 603 fixedly mounted on the screw slider 605, a clamping frame 601 fixedly mounted at the end of the slide plate 603, a reinforcing crossbar 602 fixedly mounted between the clamping frame 601 and the slide plate 603, a drive shaft 607 rotatably mounted at one end of the drive screw 604, a motor 608 fixedly mounted at one end of the drive shaft 607, helical gears 606 are provided on both the drive shaft 607 and the drive screw 604, and the helical gears 606 mesh together in pairs, a retainer is provided inside the trolley housing 2, and the drive shaft 607 is rotatably mounted inside the trolley housing 2 through the retainer.
[0025] Specifically, after the unloading plate 501 is successfully erected, workers can neatly stack the cargo boxes 4 on the cargo pallet 3 on one side of the unloading plate 501. Once the cargo boxes 4 are neatly stacked, the motor 608 can be started. Once the motor 608 is started, it will drive the drive shaft 607 to rotate. As the drive shaft 607 rotates, the drive screw 604 will also rotate. The rotation of the drive screw 604 will cause the screw slider 605 to slide forward. As the screw slider 605 slides forward, it will push the clamping frame 601 on the slide plate 603 to move forward. The result of this series of actions is that the cargo boxes 4 are clamped between the unloading plate 501 and the clamping frame 601, thereby effectively preventing the goods on the trolley from tipping over during transportation.
[0026] Working principle: First, control the extension of the hydraulic cylinder 506. After the hydraulic cylinder 506 extends, the unloading plate 501 can be erected. After the unloading plate 501 is erected, the cargo box 4 can be neatly placed on the cargo pallet 3 on one side of the unloading plate 501. After the cargo box 4 is neatly placed on the cargo pallet 3 on one side of the unloading plate 501, the motor 608 can be started. After the motor 608 is started, it will drive the drive shaft 607 to rotate. After the drive shaft 607 rotates, it will drive the drive screw 604 to rotate. After the drive screw 604 rotates, the screw slider 605 will slide forward. After the screw slider 605 moves forward, it will drive the clamping frame 601 on the slide plate 603 to move forward, thereby clamping the cargo box 4 between the unloading plate 501 and the clamping frame 601 to prevent the cargo on the trolley from tipping over. After the cargo box 4 is transported to the appropriate position, the hydraulic cylinder 506 can be retracted. After the hydraulic cylinder 506 is retracted, the unloading plate 501 will rotate to a horizontal state. After the unloading plate 501 rotates to a horizontal state, it can continue to drive the clamping frame 601 to move forward through the motor 608. After the clamping frame 601 moves forward, it will push the cargo box 4 forward, so that the cargo box 4 slides down along the unloading plate 501 to achieve automatic unloading.
[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. An AGV (Automated Guided Vehicle) for preventing cargo from tipping over, comprising a chassis (1), wherein a chassis shell (2) is fixedly mounted on the chassis (1), characterized in that: The upper end of the trolley housing (2) is fixedly installed with a cargo pallet (3), the cargo pallet (3) is provided with a cargo box (4), one end of the cargo pallet (3) is provided with a unloading mechanism (5), the unloading mechanism (5) includes an unloading plate (501) rotatably installed on the cargo pallet (3), the unloading plate (501) is connected with a hydraulic cylinder (506), and the other end of the cargo pallet (3) is provided with a clamping mechanism (6).
2. The AGV trolley for preventing cargo tipping according to claim 1, characterized in that: The unloading plate (501) also includes a hinge (502) between the unloading plate (501) and the cargo pallet (3). The cargo pallet (3) has a cylinder notch (503) and a movable slide groove (505) at the edge of the cargo pallet (3). Both ends of the hydraulic cylinder (506) are rotatably mounted with movable shafts (507). A connecting arm (504) is fixedly mounted on the unloading plate (501).
3. The AGV trolley for preventing cargo tipping according to claim 2, characterized in that: The trolley housing (2) has a cylinder groove, and the hydraulic cylinder (506) is housed in the trolley housing (2) through the cylinder groove.
4. An AGV trolley for preventing cargo tipping according to claim 3, characterized in that: The unloading plate (501) is rotatably mounted on the cargo pallet (3) via a hinge (502). The hydraulic cylinder (506) passes through the cargo pallet (3) via a cylinder notch (503). One end of the hydraulic cylinder (506) is rotatably mounted inside the trolley housing (2) via a movable shaft (507), and the other end of the hydraulic cylinder (506) is rotatably mounted on the connecting arm (504) via a movable shaft (507).
5. An AGV trolley for preventing cargo tipping according to claim 4, characterized in that: The clamping mechanism (6) includes a drive screw (604) rotatably mounted inside the trolley housing (2), a screw slider (605) threaded onto the drive screw (604), a slide plate (603) fixedly mounted on the screw slider (605), a clamping frame (601) fixedly mounted at the end of the slide plate (603), a reinforcing crossbar (602) fixedly mounted between the clamping frame (601) and the slide plate (603), a drive shaft (607) rotatably mounted at one end of the drive screw (604), a motor (608) fixedly mounted at one end of the drive shaft (607), and helical gears (606) provided on both the drive shaft (607) and the drive screw (604), with the helical gears (606) meshing together in pairs.
6. An AGV trolley for preventing cargo tipping according to claim 5, characterized in that: The trolley housing (2) is provided with a retainer, and the drive shaft (607) is rotatably mounted in the trolley housing (2) through the retainer.
7. An AGV trolley for preventing cargo tipping according to claim 6, characterized in that: The output end of the motor (608) is provided with a coupling, the drive shaft (607) is fixedly installed at the output end of the motor (608) through the coupling, the lead screw slider (605) is slidably installed on the cargo pallet (3) through the movable slide groove (505), and the slide plate (603) is movably installed on the upper surface of the cargo pallet (3) through the lead screw slider (605).