A stereoscopic warehouse goods lifting and carrying device

Abstract

The application relates to the technical field of warehouse logistics handling equipment, and discloses a stereoscopic warehouse goods lifting and handling equipment, which comprises a rack, a lifting loading platform arranged on the rack, and forks arranged on the lifting loading platform, wherein the forks are at least two, the forks are rotatably arranged on one side of the lifting loading platform, each fork has a picking end for extending into a supporting gap at the bottom of goods, and a guide and posture adjusting mechanism is arranged between the forks and the lifting loading platform, so that when the forks enter the supporting gap at the bottom of the goods, the forks can rotate to avoid obstacles such as the edge of a contact entrance, a sagging part of a tray or a supporting rib, thereby reducing the hard collision of the end of the fork and lowering the probability of being stuck.

Description

Technical Field

[0001] This invention relates to the field of warehousing and logistics handling equipment technology, specifically to a three-dimensional warehouse cargo lifting and handling equipment. Background Technology

[0002] Automated warehouses typically use lifting and handling equipment to transfer palletized goods between racking locations at different heights. This type of equipment generally includes a frame, a lifting platform, a lifting drive mechanism, and forks. After the lifting platform moves to the target storage location height, the telescopic forks extend into the forklift inlets at the bottom of the pallet to complete the pallet retrieval or placement.

[0003] Existing lifting and handling equipment mostly uses position sensors, limit switches, or visual recognition to determine the relative position of the lifting platform and the rack position, and adjusts the fork entry position through the lifting mechanism or telescopic mechanism. This method can meet the needs of conventional rack alignment, but its adjustment mainly targets the overall position of the lifting platform or the entire set of forks.

[0004] In actual use, installation errors of the rack support beams can cause deviations in the fork entry height at different storage locations. In this case, the fork tip is prone to partially bumping against the lower edge or side ribs of the pallet when it first enters the pallet fork entry point, causing the fork extension action to be interrupted. The equipment needs to be retracted and repositioned, affecting the continuity of high-level storage operations. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a three-dimensional warehouse cargo lifting and handling device, which aims to alleviate the aforementioned problems to at least some extent.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution:

[0007] A cargo lifting and handling equipment for an automated warehouse includes:

[0008] frame;

[0009] A lifting loading platform is mounted on the frame;

[0010] At least two shift forks are provided on the lifting loading platform.

[0011] The forks are rotatably mounted on one side of the lifting platform, and each fork has a picking end for extending into the bottom support gap of the cargo.

[0012] It also includes an inlet adjustment mechanism, which is located between the fork and the lifting cargo platform to rotate the fork to avoid obstruction when the fork enters the bottom support gap of the cargo.

[0013] A load-bearing locking mechanism is provided between the guide and adjustment mechanism and the lifting loading platform. The load-bearing locking mechanism is used to rotate the fork to a horizontal angle and lock it after the fork is rotated to the support angle and when the lifting loading platform lifts the goods.

[0014] Preferably, the bottom of the frame is provided with a walking mechanism.

[0015] Preferably, a mounting bracket is connected to the frame, a lead screw is fixed on the mounting bracket, a threaded tube that is threadedly connected to the lead screw is rotatably connected to the lifting loading platform, and a driving part is provided between the mounting bracket and the threaded tube for rotating the threaded tube.

[0016] Preferably, the drive unit includes a worm gear disposed on the outer wall of the threaded tube, a motor is connected to the lifting platform, and a worm gear meshing with the worm gear is connected to the output shaft of the motor.

[0017] Preferably, the orientation adjustment mechanism includes a connecting shaft rotatably connected to the lifting platform, a connecting frame fixedly connected to the connecting shaft, a shift fork disposed on the connecting frame, and a torsion spring connected between the connecting shaft and the lifting platform.

[0018] Preferably, the picking end is provided with a ramp section.

[0019] Preferably, the load-bearing locking mechanism includes a limiting ring disposed within the lifting loading platform, the connecting frame extending into the limiting ring and fixedly connected to the limiting ring, the limiting ring having multiple locking ports, the sides of the locking ports having expansion openings, the lifting loading platform having a locking shaft, and the outer wall of the locking shaft having locking blocks corresponding to the locking ports.

[0020] Preferably, a sliding shaft is slidably connected inside the lifting platform, a first spring is connected between the sliding shaft and the lifting platform, the sliding shaft extends through the connecting shaft to the bottom of the shift fork, a connecting bar is connected to the shift fork, a connecting rod is hinged to the connecting bar, and the other end of the connecting rod is hinged to the sliding shaft.

[0021] Preferably, a limiting rod is connected to the bottom of the shift fork, and a second spring is connected between the limiting rod and the connecting frame.

[0022] Preferably, a support rod is connected to the bottom of the limiting rod.

[0023] In summary, the present invention has the following main beneficial effects:

[0024] This application rotatably mounts the shift fork on one side of the lifting platform and sets an orientation adjustment mechanism between the shift fork and the lifting platform. This allows the shift fork to rotate and avoid obstacles such as the bottom support gap of the goods when it enters the gap. This reduces the hard impact of the shift fork end and lowers the probability of jamming.

[0025] This application utilizes a load-bearing locking mechanism to return the fork from its supporting angle to a horizontal angle and lock it after it enters the supporting position. This ensures that when the lifting platform raises goods, the fork can support the goods horizontally, reducing the risks of goods slippage, uneven loading, and lifting sway. Simultaneously, a sliding shaft, connecting bar, and linkage convert the displacement of the fork under the reaction force of the goods into a locking trigger action, ensuring that the guide avoidance and load-bearing locking are sequentially connected during the picking process, preventing the fork from being locked prematurely before it has supported any goods. When the lifting platform lowers, the support rod contacts the ground, which can reset the limit rod and the fork, facilitating the next picking cycle. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the lifting cargo platform structure of the present invention;

[0028] Figure 3 This is a schematic diagram of the worm gear and worm structure of the present invention;

[0029] Figure 4 This is a schematic diagram of the connecting frame structure of the present invention;

[0030] Figure 5 This is a cross-sectional schematic diagram of the connecting frame structure of the present invention;

[0031] Figure 6 This is a schematic diagram of the sliding shaft structure of the present invention;

[0032] Figure 7 This is a schematic diagram of the limiting ring structure of the present invention.

[0033] Figure label:

[0034] 1. Frame; 2. Lifting platform; 3. Fork; 4. Picking end; 5. Traveling mechanism; 6. Mounting bracket; 7. Lead screw; 8. Threaded pipe; 9. Worm gear;

[0035] 10. Motor; 11. Worm gear; 12. Connecting shaft; 13. Connecting frame; 14. Torsion spring; 15. Inclined section; 16. Limiting ring; 17. Locking port; 18. Expansion port; 19. Locking shaft;

[0036] 20. Locking block; 21. Sliding shaft; 22. First spring; 23. Connecting bar; 24. Linkage rod; 25. Limiting rod; 26. Second spring; 27. Supporting rod. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] refer to Figures 1-7 This embodiment provides a cargo lifting and handling device for an automated warehouse, used to transfer goods between rack locations and conveying positions within the warehouse. The goods can be pallets, turnover boxes, material frames, or cargo units with a bottom support gap. The bottom support gap refers to the space formed between the bottom of the goods and the rack support surface, allowing the forklift 3 to extend into it; it can also be the gap between the pallet's bottom fork entry point or the bottom support ribs of the material frame.

[0039] The automated warehouse cargo lifting and handling equipment includes a frame 1, a lifting platform 2, a fork 3, a guide and adjustment mechanism, and a load-bearing locking mechanism. The frame 1 is a vertical frame structure with vertical guide rails. The lifting platform 2 cooperates with the vertical guide rails through sliders, rollers, or guide seats, allowing the lifting platform 2 to move up and down along the frame 1.

[0040] The frame 1 is also equipped with a lifting drive assembly, which is used to lift the lifting platform 2 to different shelf positions.

[0041] The lifting platform 2 is mounted on the frame 1 and is used to support the forks 3 and their related drive structure. One side of the lifting platform 2 faces the shelf location, and the forks 3 are located on that side of the lifting platform 2. There are at least two forks 3, which are arranged at intervals along the width direction of the lifting platform 2 so that they can extend into the support gaps on both sides of the bottom of the goods, thereby providing stable support for the goods.

[0042] The shift fork 3 is rotatably mounted on one side of the lifting platform 2. The rotation direction of the shift fork 3 can be the up-and-down swing direction, so that the shifting end 4 of the shift fork 3 can be raised or lowered relative to the lifting platform 2.

[0043] An adjustment mechanism is located between the fork 3 and the lifting platform 2. It is used to rotate the fork 3 to avoid obstructions when the fork 3 enters the bottom support gap of the goods. The obstructions mainly refer to the edge at the entrance of the bottom support gap of the goods, the drooping part of the bottom of the pallet, the bottom support rib of the material frame, the interference part formed by the local height difference of the shelf beam, or the local downward pressure part of the bottom caused by the uneven loading of the goods.

[0044] The load-bearing locking mechanism is located between the guide adjustment mechanism and the lifting platform 2. It is used to rotate the fork 3 to the supporting angle and lock it in place when the lifting platform 2 lifts the goods. The supporting angle refers to the angle at which the fork 3's lifting end 4 has entered the supporting gap at the bottom of the goods and can support them from below. The horizontal angle refers to the supporting surface of the fork 3 being in a suitable supporting state for lifting the goods, allowing the weight of the goods to be transferred to the lifting platform 2 through the fork 3.

[0045] When this equipment is working, the lifting drive assembly first drives the lifting platform 2 to move along the frame 1 to the target shelf height, so that the picking end 4 of the fork 3 roughly corresponds to the bottom support gap of the goods. Then the frame 1 drives the fork 3 to move towards the bottom support gap of the goods. When the picking end 4 of the fork 3 approaches the entrance of the bottom support gap of the goods, if the entrance edge height is normal, the fork 3 can directly enter the support gap; if the entrance edge is obstructed by sagging goods, pallet deformation, or shelf beam error, the picking end 4 first contacts the obstruction, and the fork 3 rotates under the action of the contact force through the guide adjustment mechanism, and the picking end 4 continues to enter the support gap after bypassing the obstruction.

[0046] When the picking end 4 of the fork 3 passes the obstruction and enters the bottom support gap of the goods, the fork 3 is at the support angle. The lifting platform 2 moves upward, and at this time, the load-bearing locking mechanism is activated, causing the fork 3 to continue rotating from the support angle to a horizontal angle. Then, the fork 3 is locked, keeping it at the horizontal angle. The lifting platform 2 continues to move upward, and the fork 3 lifts the goods in a horizontal support state, causing the goods to be removed from the shelf position. After the goods are transferred to the target position, the lifting platform 2 descends or the frame 1 moves to the unloading position. The load-bearing locking mechanism is released, and the fork 3 can rotate again and exit the bottom support gap of the goods.

[0047] With the above structure, when the shift fork 3 enters the support gap at the bottom of the cargo, it is not forcibly inserted in a completely rigid horizontal state, but can rotate to avoid it during the introduction stage according to the actual position of the entry edge; when the shift fork 3 is in place and needs to carry the cargo, the support locking mechanism can rotate the shift fork 3 to a horizontal angle and lock it. Thus, the probability of the shift fork 3 hitting and getting stuck with the bottom edge of the cargo can be reduced, and the shift fork 3 can be guaranteed to have a stable support state when the lifting platform 2 lifts the cargo.

[0048] Based on the above embodiments, the traveling mechanism 5 is used to move the frame 1 closer to or away from the shelf location. The traveling mechanism 5 may include a base, traveling wheels, and a traveling drive component. The traveling wheels are located below the base, and the traveling drive component is connected to the traveling wheels for transmission, enabling the frame 1 to move along the picking and placing direction of the shelf location. Thus, after the lifting platform 2 is raised to the target shelf location height, the traveling mechanism 5 drives the frame 1 to move towards the goods, causing the fork 3 located on one side of the lifting platform 2 to enter the bottom support gap of the goods.

[0049] Based on the above embodiment, a mounting bracket 6 is connected to the frame 1. The mounting bracket 6 is arranged along the height direction of the frame 1 and is used to provide a mounting base for the lifting transmission of the lifting platform 2. A lead screw 7 is fixed on the mounting bracket 6. The lead screw 7 extends vertically and remains fixed relative to the mounting bracket 6.

[0050] A threaded tube 8 is rotatably connected to the lifting platform 2, and the threaded tube 8 is threadedly engaged with the lead screw 7. The threaded tube 8 can rotate relative to the lifting platform 2 and can drive the lifting platform 2 to move vertically. A drive unit is provided between the mounting bracket 6 and the threaded tube 8, which is used to drive the threaded tube 8 to rotate. Since the lead screw 7 is fixed on the mounting bracket 6, the threaded tube 8 moves up and down along the lead screw 7 when it rotates, and drives the lifting platform 2 to rise and fall along the frame 1.

[0051] With the above settings, the lifting of the lifting platform 2 is achieved by the cooperation of the fixed screw 7 and the rotating threaded tube 8, which enables the lifting platform 2 to move smoothly between shelf positions at different heights and provides a height alignment basis for the fork 3 to enter the bottom support gap of the goods.

[0052] A bearing seat can be installed on the lifting platform 2, and a bearing is installed in the bearing seat. The threaded pipe 8 is rotatably connected to the lifting platform 2 through the bearing, so that the threaded pipe 8 can rotate relative to the lifting platform 2 around its own axis. At the same time, the threaded pipe 8 maintains a limiting connection with the lifting platform 2 in the axial direction.

[0053] Based on the above embodiments, the driving unit includes a worm gear 9 disposed on the outer wall of the threaded tube 8, a motor 10 connected to the lifting platform 2, and a worm 11 meshing with the worm gear 9 connected to the output shaft of the motor 10. The worm gear 9 is fixedly connected to the threaded tube 8, so that when the worm gear 9 rotates, it can drive the threaded tube 8 to rotate synchronously.

[0054] During operation, motor 10 drives worm gear 11 to rotate, worm gear 11 drives worm wheel 9 to rotate, and worm wheel 9 further drives threaded tube 8 to rotate relative to lifting platform 2. Since lead screw 7 is fixed on mounting bracket 6, threaded tube 8 moves up and down along lead screw 7 during rotation, and drives lifting platform 2 to rise and fall along frame 1.

[0055] By setting the worm gear 9 on the outer wall of the threaded tube 8, the worm 11 can be engaged with the worm gear 9 to restrict the reverse rotation of the threaded tube 8, so that the lifting platform 2 is not prone to falling back due to the weight of the goods when it is carrying goods and staying at the target cargo height.

[0056] Based on the above embodiment, the orientation adjustment mechanism includes a connecting shaft 12 rotatably connected to the lifting platform 2, and the connecting shaft 12 extends along the arrangement direction of the shift fork 3. A connecting frame 13 is fixedly connected to the connecting shaft 12, and the shift fork 3 is disposed on the connecting frame 13, so that the shift fork 3 can rotate relative to the lifting platform 2 with the connecting frame 13 and the connecting shaft 12.

[0057] A torsion spring 14 is connected between the connecting shaft 12 and the lifting platform 2. The torsion spring 14 is used to apply a reset torque to the connecting shaft 12. When the picking end 4 of the shift fork 3 enters the bottom support gap of the goods and is abutted by the entrance edge or other obstacles, the shift fork 3 drives the connecting shaft 12 to rotate relative to the lifting platform 2 through the connecting frame 13, so that the picking end 4 of the shift fork 3 can change angle with the connecting frame 13, thereby avoiding obstacles.

[0058] Based on the above embodiment, the picking end 4 is provided with a ramp section 15, which is located at the end of the picking end 4 used to enter the bottom support gap of the goods. The ramp section 15 can gradually become thinner along the direction of the picking fork 3 entering the bottom support gap of the goods, so that when the picking end 4 contacts the entrance edge of the bottom support gap of the goods, it will not directly press against the entrance edge with its end face.

[0059] When the frame 1 moves the shift fork 3 towards the bottom support gap of the goods, if the picking end 4 comes into contact with the inlet edge, the bottom of the pallet, or the bottom support rib of the material frame, the ramp section 15 will first slide against the contact part, so that the contact force is transmitted to the shift fork 3 along the ramp section 15. Under the action of this contact force, the shift fork 3 drives the connecting shaft 12 to rotate through the connecting frame 13, thereby causing the shift fork 3 to rotate to avoid the contact.

[0060] Based on the above embodiment, the load-bearing locking mechanism includes a limiting ring 16 disposed within the lifting loading platform 2. A connecting frame 13 extends into the limiting ring 16 and is fixedly connected to it, allowing the limiting ring 16 to rotate synchronously with the connecting frame 13. The limiting ring 16 has multiple locking ports 17 spaced circumferentially along its sides. An expansion port 18 is formed on the side of each locking port 17, communicating with the locking port 17, and the sidewall of the expansion port 18 forms a return-to-center guide surface.

[0061] The lifting platform 2 is equipped with a locking shaft 19, which is slidably connected to the lifting platform 2 vertically. The outer wall of the locking shaft 19 is provided with a locking block 20 corresponding to the locking port 17. The locking block 20 can enter the expansion port 18 and the locking port 17 with the locking shaft 19. When the shift fork 3 rotates to avoid obstruction under the action of the guide posture adjustment mechanism, the connecting frame 13 rotates with the shift fork 3 and drives the limiting ring 16 to rotate relative to the lifting platform 2. At this time, the locking port 17 on the limiting ring 16 is angularly offset relative to the locking block 20, and the shift fork 3 is at the supporting angle.

[0062] When the lifting platform 2 moves upward and prepares to lift the goods, the locking shaft 19 slides relative to the limiting ring 16, causing the locking block 20 to enter the expansion port 18 first. Since the expansion port 18 is located on the side of the locking port 17, after the locking block 20 enters the expansion port 18, it abuts against the return guide surface of the expansion port 18. As the locking shaft 19 continues to slide, the locking block 20 pushes the limiting ring 16 to rotate in the opposite direction through the return guide surface, causing the limiting ring 16 to drive the connecting frame 13 and the shift fork 3 to rotate from the supporting angle to the horizontal angle. After the limiting ring 16 rotates back to the initial angle, the locking block 20 enters the locking port 17 and forms a circumferential limit with the side wall of the locking port 17, thereby restricting the limiting ring 16 from continuing to rotate.

[0063] With the above structure, when the shift fork 3 enters the cargo bottom support gap, it can rotate with the connecting frame 13 and the limiting ring 16 to avoid obstruction at the entrance of the cargo bottom support gap. Before the lifting platform 2 lifts the cargo, the locking block 20 can push the limiting ring 16 back to its initial angle with the return guide surface of the expansion port 18, so that the connecting frame 13 drives the shift fork 3 to return to a horizontal angle, and the locking is completed through the cooperation of the locking block 20 and the locking port 17. This can prevent the shift fork 3 from directly lifting the cargo in a non-horizontal state, reducing the risk of cargo slippage or uneven loading in the early stage of lifting.

[0064] Based on the above embodiment, a sliding shaft 21 is slidably connected inside the lifting platform 2, and the sliding shaft 21 extends in the direction of the fork 3 entering the bottom support gap of the goods. The connecting shaft 12 has a through hole for the sliding shaft 21 to pass through, and the sliding shaft 21 passes through the connecting shaft 12 and extends to the bottom of the fork 3, so that the sliding shaft 21 can slide relative to the connecting shaft 12 inside the lifting platform 2.

[0065] A first spring 22 is connected between the sliding shaft 21 and the lifting platform 2. Specifically, the first spring 22 can be sleeved on the outside of the sliding shaft 21. One end of the first spring 22 abuts against the lifting platform 2, and the other end abuts against the stop provided on the sliding shaft 21, which is used to apply a reset force to the sliding shaft 21.

[0066] A connecting bar 23 is connected to the shift fork 3, and the connecting bar 23 rotates synchronously with the shift fork 3. A connecting rod 24 is hinged to the connecting bar 23, and the other end of the connecting rod 24 is hinged to the sliding shaft 21, so that the shift fork 3, the connecting bar 23, the connecting rod 24 and the sliding shaft 21 form a linkage relationship.

[0067] In the initial state, there is a predetermined gap between the fork 3 and the connecting frame 13. This predetermined gap provides downward clearance space for the fork 3 when subjected to the reaction force of the cargo. After the fork 3 passes the obstacle and reaches the bottom of the cargo, the lifting platform 2 moves upward. Just before lifting the cargo off the shelf, the upper side of the fork 3 contacts the bottom of the cargo first. The bottom of the cargo exerts a reaction force on the fork 3, causing the fork 3 to slide downward relative to the connecting frame 13. As the fork 3 slides downward, it drives the connecting bar 23 to move synchronously. The connecting bar 23 pulls or pushes the sliding shaft 21 along the lifting platform 2 via the connecting rod 24, causing the first spring 22 to undergo elastic deformation.

[0068] The sliding shaft 21 is linked with the bearing locking mechanism. Specifically, when the sliding shaft 21 is displaced, it can directly or indirectly push the locking shaft 19 to move relative to the limiting ring 16, causing the locking block 20 on the outer wall of the locking shaft 19 to enter the expansion port 18 on the limiting ring 16. Since the fork 3 has already driven the limiting ring 16 to rotate through the connecting frame 13 during obstacle avoidance, the limiting ring 16 has an angular offset relative to its initial position. Therefore, after the locking block 20 enters the expansion port 18, it abuts against the side wall of the expansion port 18 and pushes the limiting ring 16 to rotate as the locking shaft 19 continues to move. When the limiting ring 16 rotates, it drives the connecting frame 13 to rotate synchronously, and the connecting frame 13 further drives the fork 3 to rotate from the supporting angle to the horizontal angle.

[0069] When the limiting ring 16 returns to its initial angle, the locking block 20 enters the locking port 17 and forms a circumferential limit with the locking port 17, preventing the limiting ring 16 from continuing to rotate relative to the lifting platform 2. Since the limiting ring 16 is fixedly connected to the connecting frame 13, and the connecting frame 13 cooperates with the shift fork 3, the locking block 20, after entering the locking port 17, can keep the shift fork 3 at a horizontal angle. At this time, the lifting platform 2 continues to move upward, and the shift fork 3 supports the goods in a horizontal state, preventing the goods from sliding or being unevenly loaded due to the shift fork 3 lifting the goods in an inclined state.

[0070] By configuring the sliding shaft 21, connecting bar 23, and connecting rod 24, the downward movement of the shift fork 3 after contacting the bottom of the cargo can be converted into a triggering action of the load-bearing locking mechanism. In this way, the shift fork 3 can remain rotatable during the introduction phase when entering the cargo bottom support gap to avoid obstacles; when the shift fork 3 has reached the bottom of the cargo and begun to bear load, it can automatically trigger the locking shaft 19 to enter the limiting ring 16, causing the limiting ring 16 to return to its original position and lock, thereby realizing the sequential switching between obstacle avoidance and horizontal load bearing.

[0071] Based on the above embodiment, a limiting rod 25 is connected to the bottom of the shift fork 3, and the limiting rod 25 moves synchronously with the shift fork 3 relative to the connecting frame 13. A second spring 26 is connected between the limiting rod 25 and the connecting frame 13. The second spring 26 is used to keep the shift fork 3 in its initial position relative to the connecting frame 13 when it is not carrying any goods, and to form a predetermined distance between the shift fork 3 and the connecting frame 13.

[0072] Based on the above embodiment, the bottom of the limiting rod 25 is connected to a support rod 27, which extends downwards from the lifting platform 2. The support rod 27 is used to abut against the ground when the lifting platform 2 moves down to a predetermined low position.

[0073] When the lifting platform 2 moves the goods downwards after handling them, the support rod 27 moves downwards synchronously with the limit rod 25, the shift fork 3, and the lifting platform 2. After the lifting platform 2 descends to the predetermined height, the lower end of the support rod 27 first contacts the ground or supporting surface; as the lifting platform 2 continues to move downwards, the ground or supporting surface exerts an upward abutment on the support rod 27, causing the support rod 27 to move the limit rod 25 upwards relative to the connecting frame 13. Since the limit rod 25 is connected to the bottom of the shift fork 3, when the limit rod 25 moves upwards, it can drive the shift fork 3 to return to its original position relative to the connecting frame 13.

[0074] As the supporting rod 27 contacts the ground and pushes the limiting rod 25 upward, the second spring 26, in conjunction with the limiting rod 25, resets the shift fork 3, allowing the shift fork 3 and the connecting frame 13 to re-establish their initial distance. Simultaneously, the reset action of the shift fork 3, through the connecting bar 23 and the connecting rod 24, drives the sliding shaft 21 to reset, releasing the sliding shaft 21 from its triggering state on the load-bearing locking mechanism. This facilitates the locking shaft 19 exiting the locking port 17 or expansion port 18 on the limiting ring 16, thereby restoring the shift fork 3 to its initial state of obstacle-avoiding rotation.

[0075] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cargo lifting and handling equipment for an automated warehouse, characterized in that, include: Rack (1); A lifting loading platform (2) is provided on the frame (1); A fork (3) is provided on the lifting loading platform (2), and the fork (3) has at least two forks; The fork (3) is rotatably disposed on one side of the lifting platform (2), and each fork (3) has a picking end (4) for extending into the bottom support gap of the goods. It also includes an inlet adjustment mechanism, which is located between the fork (3) and the lifting platform (2) to rotate the fork (3) to avoid obstruction when the fork (3) enters the bottom support gap of the goods; The load-bearing locking mechanism is located between the guide posture adjustment mechanism and the lifting cargo platform (2). The load-bearing locking mechanism is used to rotate the fork (3) to the horizontal angle and lock it after the fork (3) is rotated to the support angle and when the lifting cargo platform (2) lifts the cargo.

2. The automated warehouse cargo lifting and handling equipment according to claim 1, characterized in that, The bottom of the frame (1) is provided with a walking mechanism (5).

3. The automated warehouse cargo lifting and handling equipment according to claim 1, characterized in that, The frame (1) is connected to a mounting bracket (6), and a lead screw (7) is fixed on the mounting bracket (6). A threaded tube (8) that is threaded with the lead screw (7) is rotatably connected to the lifting platform (2). A drive unit is provided between the mounting bracket (6) and the threaded tube (8) for rotating the threaded tube (8).

4. The automated warehouse cargo lifting and handling equipment according to claim 3, characterized in that, The drive unit includes a worm gear (9) disposed on the outer wall of the threaded tube (8), and a motor (10) is connected to the lifting platform (2). A worm (11) that meshes with the worm gear (9) is connected to the output shaft of the motor (10).

5. The automated warehouse cargo lifting and handling equipment according to claim 1, characterized in that, The orientation adjustment mechanism includes a connecting shaft (12) rotatably connected to the lifting platform (2), a connecting frame (13) fixedly connected to the connecting shaft (12), a fork (3) disposed on the connecting frame (13), and a torsion spring (14) connected between the connecting shaft (12) and the lifting platform (2).

6. The automated warehouse cargo lifting and handling equipment according to claim 1, characterized in that, The dialing end (4) is provided with a ramp section (15).

7. A cargo lifting and handling equipment for an automated warehouse according to claim 5, characterized in that, The load-bearing locking mechanism includes a limiting ring (16) disposed in the lifting loading platform (2), the connecting frame (13) extends into the limiting ring (16) and is fixedly connected to the limiting ring (16), the limiting ring (16) is provided with a plurality of locking ports (17), the side of the locking port (17) is formed with an expansion port (18), the lifting loading platform (2) is provided with a locking shaft (19), and the outer wall of the locking shaft (19) is connected with a locking block (20) corresponding to the locking port (17).

8. A cargo lifting and handling equipment for an automated warehouse according to claim 5, characterized in that, A sliding shaft (21) is slidably connected inside the lifting platform (2). A first spring (22) is connected between the sliding shaft (21) and the lifting platform (2). The sliding shaft (21) extends through the connecting shaft (12) to the bottom of the fork (3). A connecting strip (23) is connected to the fork (3). A connecting rod (24) is hinged on the connecting strip (23). The other end of the connecting rod (24) is hinged to the sliding shaft (21).

9. A cargo lifting and handling equipment for an automated warehouse according to claim 5, characterized in that, The bottom of the shift fork (3) is connected to a limit rod (25), and a second spring (26) is connected between the limit rod (25) and the connecting frame (13).

10. A cargo lifting and handling equipment for an automated warehouse according to claim 9, characterized in that, The bottom of the limiting rod (25) is connected to a supporting rod (27).

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