AGV (Automatic Guided Vehicle) conveying device with extensible loading platform
By using the folding and unfolding structure of the main tray and the four-way reversible sub-tray, the problem of AGV trolley pallets slipping when transporting small items and multiple transfers when transporting large items is solved, achieving the effect of anti-slip for small items and stable load-bearing for large items.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KEDEJIN INTELLIGENT EQUIP (WUXI) CO LTD
- Filing Date
- 2025-08-07
- Publication Date
- 2026-05-19
AI Technical Summary
Existing AGV pallets have low space utilization and are prone to slipping when transporting small items. When transporting large items, multiple transfers are required. Furthermore, traditional extended pallets lack the ability to change their vertical structure, making it impossible to balance anti-slip for small items with load-bearing capacity for large items.
It adopts a folding and unfolding structure with a main plate and a four-way rotatable sub-plate. When folded, the sub-plate flips vertically to form a groove to prevent slipping, and small items slide sideways. When unfolded, it flips horizontally and forms an extended platform with the main plate to increase the load-bearing area.
The flipping structure of the secondary pallet body enables anti-slip of small items and stable support of large items, avoiding the problems of small items slipping and large items becoming unstable and suspended in the air, thus improving the space utilization and stability of the pallet.
Smart Images
Figure CN224256773U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of AGV (Automated Guided Vehicle) technology, and particularly relates to an AGV conveying device with an expandable cargo platform. Background Technology
[0002] Currently, AGVs generally use a fixed pallet structure, which results in low pallet space utilization when transporting small items, while large items often require multiple transfers due to insufficient space. Especially when transporting small items such as express parcels, sudden braking or turning can easily cause the goods to slip. Traditional extendable pallets only support horizontal expansion and lack vertical structural transformation capabilities, failing to meet both the anti-slip requirements for small items and the load-bearing capacity requirements for large items. Summary of the Invention
[0003] Purpose of the invention: In order to overcome the shortcomings of the existing technology, this utility model provides an AGV conveying device with an expandable carrying platform. Through the dual-form transformation structure of the main tray and the four-way flip-up sub-tray, which can be folded and unfolded, the problem that the AGV trolley's pallet cannot simultaneously ensure the anti-slip of small items and the load-bearing capacity of large items is solved.
[0004] Technical Solution: To achieve the above objectives, this utility model provides an AGV conveying device with an expandable cargo platform, comprising an AGV trolley and a pallet mounted on the roof. The pallet includes a main pallet and four auxiliary pallets, each auxiliary pallet being connected to the front, rear, left, and right sides of the main pallet via a rotatable connection structure, and satisfying the following conditions:
[0005] Folded state: Each sub-panel flips upwards until it is perpendicular to the main pan, together forming a tray structure for accommodating small items;
[0006] Expanded state: Each sub-panel flips horizontally to be coplanar with the main pan, together forming an extended platform for carrying large goods.
[0007] Furthermore, the rotatable connection structure includes a rotating shaft fixed to the sub-disc body, the axis of which is parallel to the corresponding edge of the main disc body.
[0008] Furthermore, the flipping drive unit is connected to the rotating shaft transmission and is used to drive the sub-disc body to flip.
[0009] Furthermore, it also includes a brake that acts on the pivot to lock the flip angle of the sub-disc body in the folded state.
[0010] Furthermore, each of the sub-disc bodies and the main disc body is provided with at least one self-locking mechanism to fix the relative position of the sub-disc body and the main disc body in the unfolded state.
[0011] Furthermore, the self-locking mechanism includes a latch driving part and a latch disposed on the outer side wall of the sub-disc body, and also includes a lock hole disposed on the side of the main disc body; the latch driving part drives the latch to insert into or retract from the lock hole.
[0012] Furthermore, the self-locking mechanism also includes a latch stabilizer and a lock base; the latch stabilizer and the lock base are integrally formed and fixedly connected to the outer side wall of the sub-disc body, the latch drive is mounted on the lock base, and the latch slides through the latch stabilizer.
[0013] Furthermore, the inner sidewall of the sub-disc is covered with an anti-slip layer.
[0014] Furthermore, the pallet has a pallet frame that connects the main pallet body to the AGV trolley body.
[0015] Beneficial effects: This utility model forms a groove by vertically flipping the four-way sub-disc, and eliminates the risk of lateral slippage of small goods during sudden braking by utilizing the physical blocking principle of the side wall; after horizontal unfolding, the pressure is evenly distributed by increasing the bearing area, avoiding local suspension and instability of large goods; therefore, through the dual-form transformation structure of folding and unfolding of the main disc and the four-way flip-able sub-disc, the problem that the AGV trolley's pallet cannot simultaneously take into account both anti-slip of small items and bearing of large items is solved. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 A schematic diagram showing the folding of the secondary disk body and its enclosure with the main disk body to form a disk groove structure;
[0018] Figure 3 This is a schematic diagram showing how the secondary disk expands to form an extended platform that is coplanar with the main disk. Detailed Implementation
[0019] The present invention will be further described below with reference to the accompanying drawings.
[0020] like Figure 1 , Figure 2 and Figure 3 As shown, an AGV conveying device with an expandable loading platform includes an AGV trolley 1 and a pallet 2 mounted on the roof of the trolley. The pallet 2 includes a main pallet body 21 and four auxiliary pallets 22. Each auxiliary pallet body 22 is connected to the front, rear, left, and right sides of the main pallet body 21 via a rotatable connecting structure 20, and satisfies the following conditions:
[0021] Folded state: Each sub-disc 22 flips upward to be perpendicular to the main disc 21, together forming a disc groove structure a for accommodating small items. The disc groove is formed by the vertical flipping of the four-way sub-disc 22, and the risk of lateral slippage of small items during sudden braking is eliminated by the physical blocking principle of the side wall.
[0022] And, in the unfolded state: each sub-disc 22 is horizontally flipped to be coplanar with the main disc 21, together forming an extended platform b for carrying large goods. After being horizontally unfolded, the pressure is evenly distributed by increasing the bearing area, thus avoiding local suspension and instability of large goods.
[0023] Therefore, this utility model solves the problem that the AGV trolley's pallet cannot simultaneously prevent small items from slipping and support large items by using a dual-form transformation structure of folding and unfolding the main pallet 21 and the four-way rotatable sub-pallet 22.
[0024] The rotatable connection structure 20 includes a rotating shaft fixed to the sub-disc body 22. The axis of the rotating shaft is parallel to the corresponding edge of the main disc body 21, ensuring that the flipping trajectory of the sub-disc body 22 is strictly perpendicular to the plane of the main disc body 21, avoiding mechanical interference during folding / unfolding, and improving the reliability of the operation.
[0025] It also includes a flip drive unit 3, which is connected to the rotating shaft and is used to drive the sub-disc 22 to flip. The flip drive unit 3 is preferably a servo motor, which uses power drive to replace manual operation. It precisely controls the flip angle through torque, eliminating the possibility of incomplete unfolding or overload damage caused by manual operation, and is especially suitable for high-frequency state switching scenarios.
[0026] It also includes a brake 4, which acts on the pivot to lock the flip angle of the sub-disc 22 in the folded state. In the folded state, a braking torque is applied to the pivot to resist the swing of the sub-disc 22 caused by transportation vibration, maintain the geometric stability of the disc groove structure a, and prevent the sidewall from shaking and weakening the anti-slip effect.
[0027] like Figure 2 and Figure 3 As shown, each of the sub-disc bodies 22 and the main disk body 21 is provided with at least one self-locking mechanism 5, which is used to fix the relative position of the sub-disc body 22 and the main disk body 21 in the unfolded state. Locking the sub-disc body 22 and the main disk body 21 in the unfolded state ensures the overall rigidity of the expansion platform through rigid connection and avoids structural collapse under heavy load.
[0028] More specifically, the self-locking mechanism 5 includes a latch driving part 51 and a latch 52 disposed on the outer wall of the sub-disc body 22, and a lock hole 210 disposed on the side of the main disc body 21; the latch driving part 51 drives the latch 52 to insert into or retract from the lock hole 210. The interference fit between the latch 52 and the lock hole 210 forms a forced constraint, using the metal shear strength to resist horizontal shear force (such as the inertial force of sudden braking), which is more adaptable to impact loads than the friction locking method.
[0029] To further improve the stability of the locking support via the latch 52 in the locked state, the self-locking mechanism 5 also includes a latch stabilizing seat 53 and a lock base 54. The latch stabilizing seat 53 and the lock base 54 are integrally formed and fixedly connected to the outer wall of the sub-disc body 22. The latch driving part 51 is mounted on the lock base 54, and the latch 52 is slidably disposed on the latch stabilizing seat 53. Moreover, the integrated base structure design can disperse the locking reaction force and prevent local stress concentration.
[0030] The inner wall of the sub-disc 22 is covered with an anti-slip layer 6. The anti-slip layer 6 can achieve three functions: first, it increases the surface friction coefficient to inhibit cargo slippage; second, it absorbs the collision energy of the cargo to reduce damage; and third, it isolates the metal contact surface to prevent corrosion.
[0031] Pallet 2 has a pallet frame 7, which connects the main pallet body 21 to the AGV trolley 1. The pallet frame 7, with its rigid frame, transfers the pallet load to the AGV body's load-bearing beam, avoiding stress concentration caused by direct welding of the main pallet body 21, while also providing buffer space to reduce the impact of vehicle body vibration on the goods.
[0032] In this utility model, the principle of cargo anti-slip reliability is as follows:
[0033] 1) Folded state: Circumferential barrier is constructed using the principle of geometric constraints to achieve zero lateral slippage of small goods.
[0034] 2) Unfolded state: High friction and large area support surface suppress the displacement of large cargo.
[0035] This ultimately solves the problems of small items easily slipping off and large items easily tipping over in the fixed pallets of AGV trolleys.
[0036] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. An AGV conveying device with an expandable cargo platform, comprising an AGV trolley (1) and a pallet (2) mounted on the roof of the trolley, characterized in that: The tray (2) includes a main tray body (21) and four auxiliary tray bodies (22). Each auxiliary tray body (22) is connected to the front, rear, left, and right sides of the main tray body (21) through a rotatable connection structure (20), and satisfies the following conditions: Folded state: Each sub-panel (22) is flipped upwards to be perpendicular to the main pan (21), and together they enclose a trough structure (a) for accommodating small items. Expanded state: Each sub-panel (22) is horizontally flipped to be coplanar with the main pan (21), together forming an extended platform (b) for carrying large cargo.
2. The AGV conveying device for an expandable cargo platform according to claim 1, characterized in that: The rotatable connection structure (20) includes a rotating shaft fixed to the sub-disc body (22), the axis of which is parallel to the corresponding edge of the main disc body (21).
3. The AGV conveying device for an expandable cargo platform according to claim 2, characterized in that: It also includes a flip drive unit (3), which is connected to the rotating shaft and is used to drive the sub-disc body (22) to flip.
4. An AGV conveying device for an expandable cargo platform according to claim 2 or 3, characterized in that: It also includes a brake (4), which acts on the pivot to lock the flip angle of the sub-disc (22) in the folded state.
5. The AGV conveying device for an expandable cargo platform according to claim 1, characterized in that: Each of the sub-disc bodies (22) and the main disc body (21) is provided with at least one self-locking mechanism (5) for fixing the relative position of the sub-disc body (22) and the main disc body (21) in the unfolded state.
6. The AGV conveying device for an expandable cargo platform according to claim 5, characterized in that: The self-locking mechanism (5) includes a latch driving part (51) and a latch (52) disposed on the outer side wall of the sub-disc body (22), and also includes a lock hole (210) disposed on the side of the main disc body (21); the latch driving part (51) drives the latch (52) to insert or withdraw from the lock hole (210).
7. The AGV conveying device for an expandable cargo platform according to claim 6, characterized in that: The self-locking mechanism (5) further includes a latch stabilizer (53) and a lock base (54); the latch stabilizer (53) and the lock base (54) are integrally formed and fixedly connected to the outer side wall of the sub-disc body (22); the latch drive (51) is installed on the lock base (54); and the latch (52) is slidably disposed on the latch stabilizer (53).
8. The AGV conveying device for an expandable cargo platform according to claim 1, characterized in that: The inner wall of the sub-disc (22) is covered with an anti-slip layer (6).
9. The AGV conveying device for an expandable cargo platform according to claim 1, characterized in that: The pallet (2) has a pallet frame (7) that connects the main pallet body (21) to the body of the AGV trolley (1).