Heavy load material handling AGV device and loading method

Abstract

The application discloses a heavy-load material carrying AGV equipment and a loading method. The equipment comprises an AGV carrying vehicle body, a first placing groove with an opening upward and at the rear side is arranged on the AGV carrying vehicle body, a movable plate capable of moving transversely is arranged in the first placing groove, a turnover plate is rotationally connected to the rear side of the movable plate, and a lifting plate is hinged to the surface of the turnover plate through a lifting assembly; when the turnover plate is turned downward, the lifting plate is located at the rear side of the turnover plate. The method comprises the following steps: step 1, the movable plate is moved out, the turnover plate is turned outward by 270 DEG to be in a vertical placing state; step 2, the lifting plate is turned by 90 DEG to the ground, and an inclined surface is attached to the ground; step 3, the material is pushed along the inclined surface to the lifting plate; step 4, the lifting plate is lifted, and the material is lifted to be flush with the carrying surface of the vehicle body; and step 5, the material is translated to the AGV carrying vehicle body.

Description

Technical Field

[0001] This invention relates to a heavy-duty material handling AGV device and loading method, belonging to the field of logistics handling technology. Background Technology

[0002] AGVs, also known as AGV carts, are transport vehicles equipped with electromagnetic, optical, and other automated navigation devices. They can travel along preset navigation paths and have safety protection and multiple transfer functions. Their travel paths and behaviors can be controlled by computer programs or set using physical facilities such as electromagnetic tracks. They are widely used in smart logistics parks and smart warehouses to undertake automated handling tasks for large express deliveries and heavy materials.

[0003] In existing technologies, AGVs are typically equipped with hydraulic or electric lifting systems to facilitate material loading, reducing the height difference of materials by lowering the chassis. However, the adjustment range of these lifting systems is limited, only allowing for slight raising and lowering of the vehicle body. When dealing with heavy materials, external lifting tools such as forklifts are still required for loading assistance. If such tools are unavailable, manual lifting and lowering of materials is necessary, which is not only labor-intensive and inefficient, but also inconvenient and poses safety hazards.

[0004] Furthermore, during transportation, due to the lack of an effective fixed structure on the load-bearing surface of the AGV, heavy-load materials are prone to shifting or even slipping due to the inertia of the vehicle when starting, stopping, or turning, resulting in material collision damage and affecting the safety and integrity of logistics transportation. Summary of the Invention

[0005] The purpose of this invention is to address the problems of laborious loading, reliance on external tools, and insufficient material fixation in the handling of heavy-duty materials by existing AGV equipment. There is an urgent need to design a multi-directional mobile AGV equipment that can achieve autonomous and efficient lifting and stable fixing of heavy-duty materials to meet the automation and safety requirements of smart logistics parks for the handling of heavy-duty materials.

[0006] The technical solution adopted in this invention is as follows:

[0007] A heavy-duty material handling AGV device includes an AGV transport vehicle body. The AGV transport vehicle body is provided with a first placement slot with an upward opening and a rear side. A movable plate that can move laterally is provided in the first placement slot. A flip plate is rotatably connected to the rear side of the movable plate. A lifting plate is hinged to the surface of the flip plate through a lifting assembly. When the flip plate is flipped downward, the lifting plate is located behind the flip plate.

[0008] Optionally, the movable plate is provided with a second placement slot, the first placement slot is provided with racks on both sides, the movable plate is provided with gears corresponding to the racks on both sides, the inner side of the gears is connected to a drive wheel through a drive shaft, and the drive wheel is located in the second placement slot; the rotating shaft of the flip plate is connected to a driven wheel, and the drive wheel and the driven wheel are connected by a chain or belt.

[0009] Alternatively, the lifting assembly includes a slide groove formed on one side of the tilting plate, a threaded rod rotatably fitted in the slide groove, the threaded rod being connected to a transmission assembly, a first threaded block passing through the threaded rod and slidably fitted in the slide groove, and the first threaded block being rotatably connected to the lifting plate.

[0010] Alternatively, the flip plate may have an inner cavity communicating with the slide groove, and the transmission assembly may be disposed within the inner cavity; the transmission assembly may include a first bevel gear fixedly connected to the threaded rod, a second bevel gear meshing with the first bevel gear, and a drive component connected to the second bevel gear.

[0011] Alternatively, the movable side of the lifting plate is provided with an inclined surface, which faces downwards when the lifting plate is laid flat.

[0012] Optionally, the AGV transport vehicle body is provided with limit plates on both opposite side walls, and a relative moving assembly connected to the two limit plates is provided inside one side of the AGV transport vehicle body. A pedal assembly corresponding to the relative moving assembly is provided on one side of the AGV transport vehicle body.

[0013] Optionally, the relative movement component includes a channel formed inside the AGV transport vehicle body, a bidirectional threaded rod rotatably fitted within the channel, and two second threaded blocks passing through both ends of the bidirectional threaded rod. The two second threaded blocks are respectively fixedly connected to the two limiting plates, and the bidirectional threaded rod is throttle-connected to the pedal assembly. The AGV transport vehicle body has a chamber communicating with the channel, and the pedal assembly is located within the chamber. The pedal assembly includes a turntable disposed near one end of the bidirectional threaded rod within the chamber, a movable rod rotatably connected to one end of the turntable, and a pedal rotatably connected to the other end of the movable rod. The chamber communicates with an opening, a support is provided at the bottom of the opening, and the pedal is located above the support, rotatably connected to the support.

[0014] A loading method for a heavy-duty material handling AGV includes the following steps:

[0015] Step 1: Remove the movable plate and flip the plate outward 270° to a vertical position;

[0016] Step 2: Rotate the lifting platform 90° to the ground, with the inclined surface touching the ground;

[0017] Step 3: Push the material up the inclined plane onto the lifting plate;

[0018] Step 4: The lifting platform rises, and the material rises to be flush with the vehicle's load-bearing surface;

[0019] Step 5: Transfer the material onto the AGV transport vehicle.

[0020] In step 1, the movable plate drive mechanism is activated. The gears on both sides of the movable plate rotate along the racks on both sides of the first placement slot, causing the movable plate to move laterally outward from the placement slot. Simultaneously, the gears drive the drive wheel in the second placement slot to rotate through the transmission shaft. The drive wheel then drives the driven wheel at the rotating shaft of the flip plate through the chain or belt, so that the flip plate flips downward synchronously with the movable plate until the flip plate is in a vertical position.

[0021] Alternatively, step 6 can be added, where the pedal of the pedal assembly is pressed down, the pedal rotates around the pivot on the support, and drives the turntable in the chamber to rotate through the movable rod. The turntable drives the bidirectional threaded rod to rotate, so that the two second threaded blocks in the channel move synchronously relative to each other along the reverse thread, thereby driving the limit plates on both sides to approach and clamp the material, thus completing the loading and fixing of the heavy-duty material.

[0022] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0023] 1. The heavy-duty material handling AGV equipment and loading method provided by the present invention, through the setting of the flip plate, can pull the movable plate out of the AGV handling vehicle body and flip the flip plate 270 degrees so that the flip plate is perpendicular to the ground. Then, the lifting plate is rotated to be perpendicular to the flip plate by the rotating component, so that the heavy-duty material can be placed on the lifting plate. Through the setting of the lifting component, the lifting plate can drive the material to rise, so that the heavy-duty material can be lifted and transported, thereby reducing the laborious situation of manually lifting the heavy-duty material as a whole onto or off the AGV handling vehicle body or using lifting tools.

[0024] 2. The heavy-duty material handling AGV equipment and loading method provided by this invention, through the integrated design of gear and rack transmission, transmission shaft and chain / belt transmission, realizes the mechanical linkage of the lateral movement of the movable plate and the flipping action of the flipping plate, so that the two move synchronously and automatically, greatly reducing manual intervention and improving the efficiency of loading and unloading heavy-duty materials; the swing of the pedal assembly drives the relative movement of the two limit plates through the relative movement component, which can fix the heavy-duty materials on the AGV handling vehicle body, reducing the possibility of the logistics materials being deviated and damaged on the AGV handling vehicle body during transportation. Attached Figure Description

[0025] Figure 1This is a schematic diagram of the AGV transporter structure;

[0026] Figure 2 This is a schematic diagram of the movable panel structure;

[0027] Figure 3 This is a schematic diagram of the flip-up plate structure;

[0028] Figure 4 for Figure 3 Schematic diagram of the structure at point A in the middle;

[0029] Figure 5 This is a schematic diagram of the lifting platform structure;

[0030] Figure 6 This is a schematic diagram of the inclined plane structure;

[0031] Figure 7 This is a schematic diagram of the rotating assembly structure;

[0032] Figure 8 This is a schematic diagram of the relative movement component structure;

[0033] Figure 9 This is a schematic diagram of the pedal assembly structure.

[0034] In the diagram, the markings are: 1-AGV transport vehicle body, 2-first placement slot, 3-movable plate, 301-limiting slot, 302-limiting block, 4-flipping plate, 5-second placement slot, 6-protrusion, 7-lifting plate, 8-sloping surface, 9-lifting assembly, 901-slide groove, 902-threaded rod, 903-first threaded block, 10-inner cavity, 11-transmission assembly, 1101-first bevel gear, 1102-second bevel gear, 1103-drive component, 12-rotating assembly, 1201-groove, 1202-rotating rod, 120... 3-Friction component, 1204-Connecting block, 13-Limiting plate, 16-Relative movement assembly, 1601-Slot, 1602-Double threaded rod, 1603-Second threaded block, 17-Pedal assembly, 1701-Slot, 1702-Turntable, 1703-Pedal, 1704-First pin, 1705-Second pin, 1706-Moving rod, 18-Rubber protective pad, 19-Cavity, 20-Audible and visual alarm, 21-Rack, 22-Gear, 23-Driving wheel, 24-Driven wheel, 25-Belt. Detailed Implementation

[0035] The present invention will now be described in detail with reference to the accompanying drawings.

[0036] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0037] A heavy-duty material handling AGV device, such as Figures 1-9 As shown, the AGV transport vehicle body 1 is provided with a first placement slot 2 with an opening facing upward and a rear side. The first placement slot 2 is provided with a movable plate 3 that can move laterally. A flip plate 4 is rotatably connected to the rear side of the movable plate 3. A lifting plate 7 is hinged to the surface of the flip plate 4 through a lifting assembly 9. When the flip plate 4 is flipped downward, the lifting plate 7 is located on the rear side of the flip plate 4.

[0038] Specifically, the first placement slot 2 on the upper and rear sides of the AGV transport vehicle body 1 provides lateral movement space for the movable plate 3, ensuring that the movable plate 3 can be stably extended or retracted. This expands the lateral range of loading operations and allows it to be stored away when not in use to reduce space occupation. The movable plate 3 can move laterally and extend outward to the outside of the AGV transport vehicle body 1, facilitating the pushing of the tilting plate 4 and the lifting plate 7 to a position close to the material, reducing the initial material handling distance. The tilting plate 4, rotatably connected to the rear of the movable plate 3, can contact the ground when tilted downward, forming an inclined support surface from the ground to the AGV transport vehicle body 1, providing a stable bearing base for the lifting plate 7, while reducing the height difference of material transfer. The lifting assembly 9 on the surface of the tilting plate 4 drives the lifting plate 7 to move up and down, thereby adjusting the height of heavy-duty materials. The lifting plate 7 is hinged to the lifting assembly 9, which can adapt to changes in the angle when the material is placed. When the tilting plate 4 tilts downwards, the lifting plate 7 located behind it can directly support the heavy-duty material on the ground surface. The lifting assembly 9 lifts the material to be flush with the bearing surface of the AGV transport vehicle 1, facilitating the smooth transfer of the material onto the vehicle body. It should be noted that all electrical equipment involved in this application can be powered by a battery or an external power source.

[0039] When heavy materials need to be loaded, the movable plate 3 moves laterally outward from the first placement slot 2 of the AGV transport vehicle 1, expanding the operating range. Then, the flip plate 4 behind the movable plate 3 flips outward 270 degrees until it is perpendicular to the ground. At this point, the lifting plate 7 flips 90 degrees and is positioned behind the flip plate 4, perpendicular to it and in contact with the ground, facilitating the loading of heavy materials. After the operator places the material on the lifting plate 7, the lifting assembly 9 is activated, moving the lifting plate 7 upward and raising the material to a height level with the bearing surface of the AGV transport vehicle 1. The material can then be smoothly transferred onto the AGV transport vehicle 1, completing the loading process. For unloading, the process is reversed; the lifting assembly 9 lowers the lifting plate 7, transporting the material from the vehicle body to the ground.

[0040] Through the coordinated operation of various components, an autonomous heavy-duty material lifting and transfer system is formed. Existing AGV carts' hydraulic / electric lifting systems can only slightly lower the vehicle body. Loading heavy materials requires forklifts or manual labor, which is laborious and inconvenient. At the same time, materials are prone to shifting and damage during transportation. This equipment, through a unique structural design, has constructed a mechanism for autonomously lifting and transferring heavy-duty materials: the movable plate 3 can be moved laterally out of the first placement slot 2 to expand the operating range; the tilting plate 4 can rotate to be perpendicular to the ground to form a transition support; the lifting plate 7 is perpendicularly connected to the tilting plate 4 through the rotating component 12, and together with the lifting component 9, it realizes autonomous lifting and lowering of materials without the need for external tools or a large amount of manpower, directly solving the problem of laborious loading.

[0041] In another specific embodiment, the movable plate 3 is provided with a second placement groove 5, and racks 21 are provided on both sides of the first placement groove 2. Gears 22 corresponding to the racks 21 are provided on both sides of the movable plate 3. The inner side of the gears 22 is connected to a drive wheel 23 through a transmission shaft. The drive wheel 23 is located in the second placement groove 5. A driven wheel 24 is drivenly connected to the rotating shaft of the flip plate 4. The drive wheel 23 and the driven wheel 24 are drivenly connected by a chain or belt 25. The second placement slot 5 provides built-in installation space for transmission components such as the flip plate 4, the drive wheel 23, and the drive shaft. This avoids collision damage caused by exposed components and makes the internal structure of the movable plate 3 more compact, saving space. The racks 21 on both sides of the first placement slot 2 mesh with the gears 22 on both sides of the movable plate 3, forming a precise gear 22 rack 21 transmission pair. When the gears 22 rotate, they can drive the movable plate 3 to move stably laterally along the racks 21, replacing manual pulling and realizing mechanized drive for the movement of the movable plate 3, improving movement accuracy and labor saving. The inner side of the gears 22 is connected to the drive wheel 23 through the drive shaft, making... The rotational power of gear 22 is synchronously transmitted to drive wheel 23 via transmission shaft, forming an intermediate hub for power transmission. Driven wheel 24 at the rotating shaft of flip plate 4 is driven by drive wheel 23 via chain or belt 25, converting the rotation of drive wheel 23 into the rotation of rotating shaft of flip plate 4, thereby realizing the linkage between the movement of movable plate 3 and the flipping of flip plate 4. When movable plate 3 moves outward, gear 22 rotates along rack 21, driving drive wheel 23 to rotate via transmission shaft. Drive wheel 23 then drives driven wheel 24 via chain / belt 25, ultimately causing flip plate 4 to automatically flip downward without the need for separate operation of flip plate 4. Optionally, limit grooves 301 are provided on both sides of the first placement groove 2, and limit blocks 302 are fixedly connected to both sides of movable plate 3. The limit blocks 302 slide within the limit grooves 301. The limiting grooves 301 on both sides of the first placement groove 2 and the limiting blocks 302 on both sides of the movable plate 3 form a sliding engagement, further strengthening the constraint and guiding effect on the movement of the movable plate 3: the limiting grooves 301 limit the movement trajectory of the limiting blocks 302 through the contour of the groove, so that the movable plate 3 always slides smoothly along the preset path when moving laterally, avoiding the skew or offset of the movable plate 3 due to the pressure of heavy materials or the inertia of movement, and ensuring the accurate relative position of the movable plate 3 and the first placement groove 2; at the same time, when the limiting blocks 302 slide to both ends of the limiting groove 301, they will be blocked by the end of the groove, which can strictly limit the maximum movement distance of the movable plate 3, prevent the movable plate 3 from completely coming out of the first placement groove 2, and ensure the stability of the structural connection. When not using automation, the flip plate 4 is equipped with protrusions 6, which pull the movable plate 3 to move out of the AGV transport vehicle 1.

[0042] In another specific embodiment, the lifting assembly 9 includes a groove 901 formed on one side of the tilting plate 4. A threaded rod 902 is rotatably fitted within the groove 901. The threaded rod 902 is connected to a transmission assembly 11. A first threaded block 903 passes through the threaded rod 902 and is slidably fitted within the groove 901. The first threaded block 903 is rotatably connected to the lifting plate 7. The threaded transmission pair formed by the threaded rod 902 and the first threaded block 903 converts the rotational motion of the threaded rod 902 into the linear motion of the first threaded block 903. When the transmission assembly 11 drives the threaded rod 902 to rotate, the first threaded block 903 slides linearly along the groove 901, causing the lifting plate 7 to rise and fall smoothly. The use of a threaded helix angle with self-locking characteristics allows the lifting plate 7 to be locked in position when power is off or there is no power input, avoiding the risk of slippage due to the weight of the material, making it suitable for heavy-duty scenarios. The chute 901 provides a precise sliding track for the first threaded block 903, restricting its movement to the axial direction of the threaded rod 902, preventing the threaded block from rotating with the threaded rod 902, and ensuring the verticality of the lifting direction. Simultaneously, the sliding contact surface between the inner wall of the chute 901 and the first threaded block 903 can withstand the lateral force generated by heavy materials, preventing swaying or deviation during lifting and improving structural rigidity. The rotatable connection between the first threaded block 903 and the lifting plate 7 allows the lifting plate 7 to be rotated to a horizontal state. The first threaded block 903 has a groove 1201 on one side, within which a rotating rod 1202 is located. The lifting plate 7 has a connecting block 1204, which is fitted onto the rotating rod 1202. A friction element 1203 is provided at the connection point between the rotating rod 1202 and the groove 1201. When heavy loads are required, at least two lifting assemblies 9 can be used, connected by couplings to achieve synchronous operation.

[0043] In another specific embodiment, the flip plate 4 has an inner cavity 10 communicating with the slide groove 901, and the transmission assembly 11 is disposed in the inner cavity 10. The transmission assembly 11 includes a first bevel gear 1101 fixedly connected to the threaded rod 902, a second bevel gear 1102 meshing with the first bevel gear 1101, and a drive component 1103 connected to the second bevel gear 1102. The inner cavity 10 communicating with the slide groove 901 in the flip plate 4 provides a closed installation space for the transmission assembly 11, which not only avoids the first bevel gear 1101, the second bevel gear 1102 and the drive component 1103 from being exposed to the outside environment such as dust and collisions, but also makes the transmission component and the slide groove 901, threaded rod 902 and other structures of the flip plate 4 compactly integrated, reducing the overall volume and improving the overall structure. At the same time, the communication design between the inner cavity 10 and the slide groove 901 ensures that the first bevel gear 1101 can be directly fixedly connected to the threaded rod 902, providing a direct path for power transmission. In this embodiment, the drive component 1103 can be installed horizontally along the length of the tilting plate 4. Through the meshing of the second bevel gear 1102 and the first bevel gear 1101, the horizontal rotational power is converted into the vertical rotation of the threaded rod 902. This makes the layout of the drive component 1103 more in line with the narrow structure of the tilting plate 4, making the structure of the tilting plate 4 more compact, avoiding spatial conflicts, and adapting to the operational needs of narrow passages in smart logistics parks. As a power source, the drive component 1103 provides continuous torque to the entire transmission system, ensuring that the threaded rod 902 can drive the first threaded block 903 and the lifting plate 7 to rise and fall stably, meeting the power requirements of heavy-duty materials. The driving component 1103 drives the second bevel gear 1102 to rotate, which in turn drives the first bevel gear 1101 to rotate. The rotation of the first bevel gear 1101 drives the threaded rod 902 to rotate, which in turn drives the first threaded block 903 to move within the channel 1601. The movement of the first threaded block 903, via the rotating assembly 12, drives the lifting plate 7 to move. The upward movement of the lifting plate 7 can lift the heavy-duty material.

[0044] In another specific implementation, the movable side of the lifting plate 7 is provided with an inclined surface 8. When the lifting plate 7 is laid flat, the inclined surface 8 is tilted downwards. When the lifting plate 7 is laid flat, the downward-tilted inclined surface 8 can form a natural transition between the edge of the lifting plate 7 and the contact surface, eliminating the vertical height difference and further reducing the manpower consumption in the loading and unloading of heavy materials. It is especially suitable for materials with large volume and heavy weight. There is no need to precisely align the edge of the lifting plate 7. The inclined surface 8 can guide the smooth transfer of materials and reduce the difficulty of operation. At the same time, the inclined surface 8 can disperse the contact stress between the material and the edge of the lifting plate 7, reduce material wear or equipment damage caused by hard collisions, and improve operational safety.

[0045] As another specific implementation, the AGV transport vehicle body 1 is provided with limit plates 13 on both opposite side walls, and a relative moving assembly 16 connected to the two limit plates 13 is provided on one side of the AGV transport vehicle body 1. A pedal assembly 17 corresponding to the relative moving assembly 16 is provided on one side of the AGV transport vehicle body 1. The limiting plates 13 on both sides of the AGV transport vehicle body 1 serve as direct constraint components, clamping heavy-duty materials from both sides through relative movement. The inner side can be fitted with cushioning materials, such as rubber protective pads 18, which can enhance the friction with the materials and prevent material damage caused by hard contact. The relative movement component 16 provides power transmission to the limiting plates 13, converting the power into synchronous relative movement of the two limiting plates 13 through the built-in transmission structure. When the component is activated, the limiting plates 13 on both sides can move closer or further away at the same time, ensuring uniform clamping force on the materials and avoiding material tilting caused by unilateral force. The pedal component 17 serves as a human-machine interface, converting manual operation into driving force for the relative movement component 16. It eliminates the need for complex electrical control or manual rotating parts, making it convenient to operate and meeting the needs of rapid operation in logistics scenarios. It is especially suitable for foot-triggered operation when workers are handling materials with both hands.

[0046] In another specific embodiment, the relative movement component 16 includes a channel 1601 formed inside the AGV transport vehicle body 1. A bidirectional threaded rod 1602 is rotatably fitted inside the channel 1601. Second threaded blocks 1603 are respectively threaded through both ends of the bidirectional threaded rod 1602. The two second threaded blocks 1603 are respectively fixedly connected to the two limiting plates 13. The bidirectional threaded rod 1602 is pulsatorically connected to the pedal assembly 17. The AGV transport vehicle body 1 has a chamber 19 communicating with the channel 1601. The pedal... Component 17 is disposed within the chamber 19. The pedal assembly 17 includes a turntable 1702 disposed near one end of the bidirectional threaded rod 1602 within the chamber 19. One end of the turntable 1702 is rotatably connected to a movable rod 1706 via a first pin 1704. The other end of the movable rod 1706 is rotatably connected to a pedal 1703 via a second pin 1705. The chamber 19 is connected to a slot 1701, and a support is provided at the bottom of the slot 1701. The pedal 1703 is located above the support and is rotatably connected to the support. The reverse threads at both ends of the bidirectional threaded rod 1602 engage with the second threaded blocks 1603. When the pedal assembly 17 drives the bidirectional threaded rod 1602 to rotate, the two second threaded blocks 1603 move synchronously in opposite directions, causing the limiting plates 13 to clamp or release, ensuring precise and synchronous movement of the limiting plates 13 on both sides and preventing material displacement due to uneven force on one side. The channel 1601 provides guidance and support for the second threaded block 1603, reducing the impact of lateral forces on the threaded rod 902 and improving transmission efficiency. When the pedal 1703 rotates around the pivot on the support, it drives the turntable 1702 to rotate via the movable rod 1706, converting the pedaling action into the circular motion of the bidirectional threaded rod 1602. The design of the chamber 19 and the slot 1701 protects the internal transmission components and provides room for the pedal 1703 to move, ensuring smooth operation.

[0047] In another specific implementation, the AGV transport vehicle body 1 of this embodiment has a slot 1701, in which a placement plate is slidably fitted. A pressure sensor and multiple springs are arranged between the placement plate and the slot 1701. An audible and visual alarm 20 is installed on the AGV transport vehicle body 1. A control box is fixedly installed on the AGV transport vehicle body 1. The control box contains a power supply, a processor, a data comparator, and a feedback module. The output end of the pressure sensor is electrically connected to the input end of the data comparator. The output end of the data comparator is connected to the input end of the processor. The output end of the processor is electrically connected to the input end of the data comparator through the feedback module. The output end of the power supply is electrically connected to the input end of the processor. The output end of the processor is electrically connected to the input end of the audible and visual alarm 20.

[0048] When the total weight of the heavy materials placed on the placement plate reaches a certain value, the placement plate presses against the pressure sensor. The pressure sensor transmits an overload signal to the processor, which then controls the audible and visual alarm 20 to sound. This design can remind the operator not to overload the materials, which is beneficial to the safe transportation of heavy materials.

[0049] A loading method for a heavy-duty material handling AGV includes the following steps:

[0050] Step 1: Move the movable plate 3 out and flip the flip plate 4 outward 270° to a vertical position; forming a stable vertical support structure, which serves as the installation base for the lifting component 9 and provides vertical guidance for subsequent material lifting, thus solving the problem of the lack of stable support in the traditional AGV lifting structure.

[0051] Step 2: The lifting plate 7 is rotated 90° to the ground, and the inclined surface 8 is in contact with the ground. The height difference between the lifting plate 7 and the ground is eliminated by the inclined surface 8, which greatly reduces the resistance of pushing heavy materials onto the lifting plate 7. The materials can move smoothly along the inclined surface 8 without lifting, avoiding the laborious operation of lifting by manpower, and adapting to the loading needs of heavy materials.

[0052] Step 3: Push the material up the lifting plate 7 along the inclined plane 8; Utilizing the guiding effect of the inclined plane 8, the material can be easily pushed up the lifting plate 7 along the inclined plane 8, converting the vertical lifting of the material into a horizontal thrust along the inclined plane 8, significantly reducing manpower consumption and solving the inconvenience of relying on forklifts or manual lifting when loading traditional AGVs.

[0053] Step 4: Lifting plate 7 rises, and the material is raised to be level with the vehicle body's bearing surface; the lifting assembly 9 drives the lifting plate 7 to rise, smoothly lifting the material to be level with the bearing surface of the AGV transport vehicle body 1, providing a consistent transition base for subsequent horizontal movement, avoiding material jamming or collision due to height difference, and ensuring that the lifting process is stable and controllable.

[0054] Step 5: The material is moved horizontally onto the AGV transport vehicle 1. The material is moved horizontally onto the AGV transport vehicle 1 along the flat bearing surface. The design of consistent height enables unobstructed transfer, completing the final loading step. The entire process does not require additional adjustment of the material posture, improving the smoothness of operation.

[0055] In another specific implementation, in step 1, the driving mechanism of the movable plate 3 is activated. The gears 22 on both sides of the movable plate 3 rotate along the racks 21 on both sides of the first placement slot 2, driving the movable plate 3 to move laterally outward from the placement slot. Simultaneously, the gears 22 drive the drive wheel 23 in the second placement slot 5 to rotate through the transmission shaft. The drive wheel 23 then drives the driven wheel 24 at the rotating shaft of the flipping plate 4 through the chain or belt 25, causing the flipping plate 4 to flip downward synchronously with the movement of the movable plate 3 until the flipping plate 4 is in a vertical position. On the one hand, the synchronous action reduces the steps of operating the flipping plate 4 separately, integrating the original steps of moving the movable plate 3 and flipping the flipping plate 4 into a one-time linkage, greatly improving the efficiency of the pre-loading preparation. On the other hand, the rigid meshing of the gear 22 and rack 21 transmission ensures that the movable plate 3 moves smoothly and is positioned accurately, while the chain / belt transmission ensures the stability of power transmission, making the flipping angle of the flipping plate 4 controllable, laying a stable vertical support foundation for the subsequent docking of the lifting plate 7 with the ground and receiving materials. Meanwhile, all transmission components are built-in or integrated into the placement slots to avoid damage from collisions, adapting to the complex operating environment of smart logistics parks and further enhancing the durability and ease of operation of the equipment.

[0056] As another specific implementation, it also includes step 6, stepping down the pedal 1703 of the pedal assembly 17. The pedal 1703 rotates around the pivot on the support, and drives the turntable 1702 in the chamber 19 to rotate through the movable rod 1706. The turntable 1702 drives the bidirectional threaded rod 1602 to rotate, so that the two second threaded blocks 1603 in the channel 1601 move synchronously relative to each other along the reverse thread, thereby driving the limiting plates 13 on both sides to approach and clamp the material, completing the loading and fixing of the heavy-duty material.

[0057] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. The invention extends to any new features or combinations disclosed in this specification, and any modifications, equivalent substitutions, and improvements made within the spirit and principles of the invention should be included within the scope of protection of the invention. It is obvious to those skilled in the art that the invention is not limited to the details of the above exemplary embodiments, and that detailed technical features not disclosed in this embodiment, such as specific structures, are all prior art and can be obtained by those skilled in the art from the prior art. The connection method can be a fixed connection, a detachable connection, or an integral part; it can be a fixed connection, a movable connection, or a hinged connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific manner of the above terms in the embodiments of the present invention according to the specific circumstances, and this disclosure does not specifically limit this aspect.

Claims

1. A heavy load material handling AGV apparatus, characterized by: Including AGV carrier body (1), be equipped with the first placement groove (2) that opens to the upside and rear side on the AGV carrier body (1), be equipped with the movable plate (3) that can move laterally in the first placement groove (2), the rear side of movable plate (3) is rotatably connected with the turnover plate (4), the surface of turnover plate (4) is hinged with lifting plate (7) through lifting assembly (9);When the turnover plate (4) is turned down, the lifting plate (7) is located in the rear side of turnover plate (4);The movable plate (3) is equipped with the second placement groove (5);The both sides of the first placement groove (2) are equipped with rack (21), the both sides of movable plate (3) are equipped with gear (22) corresponding with rack (21), the inner side of gear (22) is connected with driving wheel (23) through transmission shaft, and driving wheel (23) is equipped in the second placement groove (5);The transmission connection of driving wheel (23) and driven wheel (24) is through chain or belt (25).

2. The heavy load handling AGV apparatus of claim 1, wherein: The lifting assembly (9) includes the sliding slot (901) formed in one side of the turnover plate (4), the threaded rod (902) is rotatably connected in the sliding slot (901), the threaded rod (902) is connected with the transmission assembly (11), the first threaded block (903) is slidably connected in the sliding slot (901) and the threaded rod (902), and the first threaded block (903) is rotatably connected with the lifting plate (7).

3. The heavy load handling AGV apparatus of claim 2, wherein: The turnover plate (4) is equipped with the inner cavity (10) connected with the sliding slot (901), and the transmission assembly (11) is arranged in the inner cavity (10).

4. The heavy load handling AGV apparatus of claim 1, wherein: The lifting plate (7) is provided with an inclined surface (8) on the movable side, and when the lifting plate (7) is placed, the inclined surface (8) is inclined downward.

5. The heavy load handling AGV apparatus of claim 1, wherein: The AGV carrier body (1) is provided with a limiting plate (13) on the opposite two side walls, and a relative movement assembly (16) connected with the two limiting plates (13) is arranged on one side of the AGV carrier body (1).

6. The heavy load handling AGV apparatus of claim 5, wherein: The relative moving assembly (16) comprises a groove (1601) formed in the AGV carrier body (1), a bidirectional threaded rod (1602) is rotatably arranged in the groove (1601), two second threaded blocks (1603) are respectively arranged at two ends of the bidirectional threaded rod (1602), the two second threaded blocks (1603) are respectively fixedly connected with the two limiting plates (13), and the bidirectional threaded rod (1602) is in transmission connection with the pedal assembly (17); the AGV carrier body (1) is internally provided with a cavity (19) in communication with the groove (1601), and the pedal assembly (17) is arranged in the cavity (19); the pedal assembly (17) comprises a rotating disc (1702) arranged at one end of the bidirectional threaded rod (1602) close to the cavity (19), one end of the rotating disc (1702) is rotatably connected with an active rod (1706), and the other end of the active rod (1706) is rotatably connected with a pedal (1703); the cavity (19) is in communication with a slot (1701), the slot (1701) is provided with a support at the bottom, the pedal (1703) is located above the support, and the pedal (1703) is rotatably connected with the support.

7. A method of loading a heavy load handling AGV apparatus, characterized by: The use of the device according to any one of claims 1-6, comprising the steps of: Step 1: the movable plate (3) moves out, and the turnover plate (4) is turned over by 270° to be in a vertical state: the movable plate (3) driving mechanism is started, the gear (22) on both sides of the movable plate (3) rotates along the rack (21) on both sides of the first placing groove (2), and drives the movable plate (3) to move horizontally and outwardly from the placing groove; synchronously, the gear (22) drives the driving wheel (23) in the second placing groove (5) to rotate through the transmission shaft, the driving wheel (23) drives the driven wheel (24) at the rotating shaft of the turnover plate (4) through the chain or belt (25), so that the turnover plate (4) is turned over downward synchronously with the movement of the movable plate (3), until the turnover plate (4) is in a vertical state; Step 2: the lifting plate (7) is turned over by 90° to the ground, and the inclined surface (8) is attached to the ground; Step 3: the material is pushed up the lifting plate (7) along the inclined surface (8); Step 4: the lifting plate (7) is lifted, and the material is lifted to be flush with the carrier body bearing surface; Step 5: the material is translated to the AGV carrier body (1).

8. The method of loading a heavy material handling AGV apparatus of claim 7, wherein: Step 6: the pedal (1703) of the pedal assembly (17) is stepped on, the pedal (1703) is rotated around the rotating shaft on the support, the rotating disc (1702) in the cavity (19) is rotated through the active rod (1706), the rotating disc (1702) drives the bidirectional threaded rod (1602) to rotate, the two second threaded blocks (1603) in the groove (1601) are synchronously relatively moved along the reverse threads, and then the two limiting plates (13) on both sides are close to the material and clamped, so that the loading and fixing of the heavy load material are completed.

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