Expandable intelligent AGV

Abstract

This invention provides an expandable intelligent AGV (Automated Guided Vehicle) cart, including an AGV cart body. A control panel is located at the front end of the AGV cart body. A storage platform is installed in the center of the top surface of the AGV cart body. Roller frames are installed on both sides of the top surface of the AGV cart body. Inside the AGV cart body, a scissor lift assembly, a tilting assembly, and a retractable fork assembly are installed. The top of the scissor lift assembly is connected to the storage platform, and the back of the storage platform is fixedly connected to the fork assembly. The scissor lift assembly drives the storage platform and the fork assembly to move synchronously up and down. This invention integrates multiple functions into the AGV cart. Each functional module can be stored away when not in use, saving space, and can be extended when in use to meet the needs of various scenarios.

Description

Technical Field

[0001] This invention relates to the field of AGV (Automated Guided Vehicle) equipment technology, specifically to expandable intelligent AGVs. Background Technology

[0002] AGVs are industrial vehicles that load goods automatically or manually, travel automatically along a set route or tow a cargo trolley to a designated location, and then load and unload goods automatically or manually.

[0003] In order to meet the needs of transferring various types of goods and shelves in logistics warehouses, a variety of AGVs are required, such as: lifting and transfer type, forklift type, and hook-and-tow type. At present, the functions of AGVs are mostly single. Warehouses need to purchase different types of AGVs to meet different functional needs, which leads to high procurement costs of AGVs for intelligent logistics. The versatility and functionality of AGVs need to be further improved. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an expandable intelligent AGV vehicle, which solves the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] An expandable intelligent AGV includes an AGV body, a control panel at the front of the AGV body, a storage platform in the center of the top surface of the AGV body, roller frames on both sides of the top surface of the AGV body, and a scissor lift assembly, a tilting assembly, and a retractable fork assembly installed inside the AGV body.

[0007] The top of the scissor lift assembly is connected to the storage platform, and the back of the storage platform is fixedly connected to the fork plate assembly. The scissor lift assembly is used to drive the storage platform and the fork plate assembly to move up and down synchronously. The tilting assembly is used to drive the two sets of roller frames to rotate to a vertical position or to be placed horizontally on the storage platform.

[0008] The AGV (Automated Guided Vehicle) has the following extended states:

[0009] Shelf turnover status: Two sets of roller frames are placed vertically on both sides of the AGV trolley body, and the shelf to be transferred is placed above the storage platform; the forklift assembly is retracted into the AGV trolley body;

[0010] Cargo box self-turnover state: Both sets of roller frames are horizontally placed on the placement platform to form a roller platform. The cargo box is placed on the roller platform, and the roller platform is used to actively transport the cargo box above it to the receiving platform at a designated height; the forklift assembly is stored inside the AGV trolley body;

[0011] Forklift turnover status: The fork assembly extends horizontally outward from the AGV trolley body to lift the pallet and the goods on the pallet;

[0012] Fence turnover status: The fork plate assembly extends outward and rotates to a vertical position so that the fork plate assembly is placed on the back of the storage platform; the roller frames on the left and right sides rotate to a vertical position; the fork plate assembly and the two sets of roller frames together form a U-shaped fence structure.

[0013] Furthermore, the storage platform includes a main support plate, a back plate, and a protective cover; the main support plate has second receiving slots on both sides, and the AGV trolley body has first receiving slots on both sides of its top surface, with the first receiving slots being flush with each other and directly below the second receiving slots; the back of the main support plate is connected to a back plate extending vertically downwards, and the back of the AGV trolley body has a vertical sliding groove for the back plate to slide into; the outer wall of the back plate is provided with a protective cover.

[0014] When the roller frame is in a vertical position, the bottom end of the roller frame is retracted into the first receiving groove, the top of the roller frame passes through the second receiving groove, and the extended part of the roller frame serves as the side enclosure structure of the storage platform.

[0015] Furthermore, the front end of the main support plate has multiple sets of first through slots, and a set of front stop components is slidably installed inside each first through slot; the front stop components include a front baffle, a spring rod and an L-shaped fixing plate, the front baffle is vertically slidably placed in the first through slot, the bottom end of the front baffle is provided with a spring rod, the bottom end of the spring rod is fixedly connected to the L-shaped fixing plate, and the L-shaped fixing plate is fixed to the bottom surface of the main support plate.

[0016] Furthermore, the flipping assembly includes a U-shaped frame, a pneumatic rod, a lifting frame, a drive rod, a main drive assembly, and a guide assembly; the U-shaped frame is mounted on the bottom surface of the main support plate, a pneumatic rod is provided in the middle of the U-shaped frame, the top of the pneumatic rod is vertically fixedly connected to the lifting frame, both ends of the horizontally arranged lifting frame are rotatably connected to swing arms, the outer ends of the swing arms are vertically fixedly connected to the drive rod, both ends of each drive rod are rotatably connected to a set of flipping linkage assemblies, and the top ends of the two sets of flipping linkage assemblies are fixedly connected to a set of roller frames; the inner wall of the second receiving groove has two symmetrically opened rotating grooves, and a set of flipping linkage assemblies is installed inside each rotating groove.

[0017] Furthermore, the flipping linkage component includes a main drive component and a guide component;

[0018] The main drive assembly includes a main drive column, with a roller frame vertically fixedly connected to the top of the main drive column, and an assembly provided on the inner wall of the bottom end of the main drive column, with the end of the drive rod rotatably embedded in the assembly; a first guide column is provided in the middle of the inner wall of the main drive column, and a second guide column is provided at the bottom of the inner wall;

[0019] The guide assembly includes a vertical guide frame, which is fixed in a rotating groove. The guide frame has a vertical groove inside, and the top of the inner wall of the guide frame has a quarter-circular arc-shaped guide frame. The arc-shaped guide frame has an arc-shaped groove inside, and the arc-shaped groove is connected to the middle of the vertical groove.

[0020] In the vertical position of the roller frame, the first guide post is placed at the top of the vertical groove, and the second guide post is placed inside the vertical groove and at the entrance of the arc-shaped groove.

[0021] In a horizontal roller frame, the first guide post is placed at the top of the vertical groove, and the second guide post is placed at the inner end of the arc-shaped groove.

[0022] Furthermore, the fork assembly includes a main fork, a flipping drive assembly, and a telescopic drive assembly. The main fork includes a first fork, a second fork, and a connecting rod. One end of the connecting rod is vertically fixed to the first fork, and the other end is vertically fixed to the second fork. The first fork, the second fork, and the connecting rod are arranged in a certain shape. A second through slot is provided in the back plate for the first fork and the second fork to pass through.

[0023] The connecting rod is engaged and connected to the tilting drive assembly. The telescopic drive assembly is fixed to the inner wall of the platform. The telescopic drive assembly is used to drive the tilting drive assembly and the main fork plate to move synchronously.

[0024] Furthermore, both the first and second forklift plates have mating grooves on their outer surfaces.

[0025] Furthermore, the flipping drive assembly includes a drive housing, inside which a first drive motor is installed, and at the output end of the first drive motor is a first screw; a gear is provided in the middle of the connecting rod, and the first screw is meshed with the gear.

[0026] The telescopic drive assembly includes a second drive motor, which is fixed to the inner wall of the AGV trolley body. The output end of the second drive motor is connected to a second screw, and the end of the second screw is rotatably connected to a fixed plate. The fixed plate is fixedly connected to the inner wall of the AGV trolley body. A movable plate is threaded onto the outer wall of the second screw, and the movable plate is fixedly connected to the drive housing.

[0027] Furthermore, the interior of the protective cover is a cavity structure, and the bottom surface of the protective cover is symmetrically provided with lower baffles on both sides. The two sets of lower baffles are used to support the first fork plate and the second fork plate respectively. The protective cover is used as a storage area for the drive housing in the extended state, and the sides of the protective cover are provided with through holes for the connecting rod to extend outward.

[0028] Furthermore, the roller frame has a built-in self-rotating roller.

[0029] This invention provides a scalable intelligent AGV (Automated Guided Vehicle). Compared with existing technologies, it has the following advantages:

[0030] 1. The AGV integrates multiple functions. Each functional module can be stored away when not in use, saving space. When in use, it can be extended to meet the needs of various scenarios.

[0031] 2. The roller frames located on both sides have three functions: First, in the shelving turnover state, they are vertically positioned on both sides of the storage platform, directly supporting the shelving above them. They can use surface friction to move the shelving, or they can support the shelving above them to move it. Second, in the self-turnover state of the goods, they can rotate to a horizontal position, with the goods placed directly on the roller frames. When the storage platform is raised to the designated height, the roller frames align with the receiving platform, and the roller frames can then rotate to automatically transfer the goods above them to the receiving platform, completing rapid turnover. Third, in the enclosure turnover state, operators can place various goods directly on the storage platform. The roller frames located vertically on both sides can contain the goods from both sides, preventing them from falling off.

[0032] The roller frame is designed with two sets, which can reduce the length on one side and reduce the footprint;

[0033] 3. The forklift assembly is designed with the following four functions: First, it can be stored inside the trolley when not in use, without taking up extra space; Second, when the forklift is in operation, the forks can extend and reach into the pallet to complete the forklift operation; Third, the forklift assembly can not only insert into the pallet, but also drive the pallet to lift and lower, completing the transfer requirements to a certain height. Moreover, the forklift assembly and the loading platform share the scissor lift assembly as the lifting power source, eliminating the need for a separate lifting drive structure and simplifying control; Fourth, when the enclosure is in operation, the forklift assembly can rotate 90° and be positioned at the back of the loading platform, forming a back stop structure. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 A schematic diagram of the overall front structure of the AGV trolley of the present invention is shown;

[0036] Figure 2 A schematic diagram of the overall rear structure of the AGV trolley of the present invention is shown;

[0037] Figure 3 It shows Figure 2 A magnified structural diagram at point A;

[0038] Figure 4This diagram illustrates the structure of the AGV trolley lifting the shelf according to the present invention.

[0039] Figure 5 A schematic diagram of the internal structure of the AGV trolley of the present invention is shown;

[0040] Figure 6 A schematic diagram of the scissor-type lifting assembly structure of the present invention is shown;

[0041] Figure 7 A schematic diagram of the layout structure of the fork plate assembly and the flipping assembly of the present invention is shown;

[0042] Figure 8 A schematic diagram of the flip-up component structure of the present invention is shown;

[0043] Figure 9 A schematic diagram of the main drive component and guide component of the present invention is shown;

[0044] Figure 10 It shows Figure 7 A magnified structural diagram at point B;

[0045] Figure 11 It shows Figure 7 A magnified structural diagram at point C;

[0046] Figure 12 A schematic diagram of the cargo flipping assembly and roller frame structure in the self-turning state of the present invention is shown;

[0047] Figure 13 This invention illustrates a schematic diagram of the flipping component structure in both the shelf transfer state and the enclosure state.

[0048] Figure 14 A schematic diagram of the internal structure of the drive chassis of the present invention is shown;

[0049] Figure 15 A schematic diagram of the fork plate assembly structure of the present invention is shown;

[0050] Figure 16 A schematic diagram of the pallet lifting state structure of the fork assembly of the present invention is shown;

[0051] Figure 17 A schematic diagram of the trolley structure under enclosure conditions is shown.

[0052] Figure 18 A schematic diagram of the trolley structure in the self-turnover state of the present invention is shown;

[0053] The diagram shows: 1. AGV vehicle body; 11. First receiving slot; 12. Main control panel; 13. Vertical slide; 2. Storage platform; 21. Main support plate; 211. Second receiving slot; 2111. Rotating slot; 212. First through slot; 22. Back plate; 221. Second through slot; 23. Protective cover; 231. Lower baffle; 232. Perforation; 3. Roller frame; 4. Fork plate assembly; 41. Main fork plate; 411. First fork plate; 414. Matching baffle; 412. Second fork plate; 413. Connecting rod; 4131. Gear; 42. Drive housing; 421. First drive motor; 4211. First screw; 43. Telescopic drive assembly; 431. Second drive motor; 4 32. Second screw; 433. Fixed plate; 434. Movable plate; 5. Tilting assembly; 51. U-shaped frame; 52. Pneumatic rod; 53. Lifting frame; 531. Swing rod; 54. Drive rod; 55. Main drive assembly; 551. Main drive column; 552. First guide column; 553. Second guide column; 554. Assembly kit; 56. Guide assembly; 561. Vertical guide frame; 562. Arc-shaped guide frame; 6. Front stop assembly; 61. Front baffle; 62. Spring rod; 63. L-shaped fixed plate; 7. Scissor lifting assembly; 71. Third drive motor; 72. Movable rod; 73. Third screw; 74. Positioning plate; 75. First scissor frame; 76. Second scissor frame. Detailed Implementation

[0054] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only some embodiments of the present invention, 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.

[0055] Example 1

[0056] To address the technical problems in the background section, the following scalable intelligent AGV (Automated Guided Vehicle) is proposed:

[0057] Combination Figures 1-18As shown, the expandable intelligent AGV provided by the present invention includes an AGV body 1, a main control panel 12 at the front end of the AGV body 1, a storage platform 2 installed in the middle of the top surface of the AGV body 1, roller frames 3 installed on both sides of the top surface of the AGV body 1, and a scissor lift assembly 7, a tilting assembly 5, and a retractable fork assembly 4 installed inside the AGV body 1; the top of the scissor lift assembly is connected to the storage platform 2, and the back of the storage platform 2 is fixedly connected to the fork assembly 4; the scissor lift assembly is used to drive the storage platform 2 and the fork assembly 4 to move up and down synchronously; the tilting assembly 5 is used to synchronously drive the two sets of roller frames 3 to rotate to a vertical state or to be placed horizontally on the storage platform 2;

[0058] The AGV (Automated Guided Vehicle) has the following extended states: Shelf turnover state: Two sets of roller frames 3 are vertically positioned on both sides of the AGV body 1, with the shelf to be transferred placed above the storage platform 2; the forklift assembly 4 is retracted into the AGV body 1; Cargo box self-turnover state: Both sets of roller frames 3 are horizontally positioned on the storage platform 2, forming a roller platform. The cargo box is placed on the roller platform, which actively transports the cargo box above it to a receiving platform at a designated height; the forklift assembly 4 is retracted into the AGV body 1; Forklift turnover state: The forklift assembly 4 extends horizontally outward from the AGV body 1 to lift pallets and goods on them; Enclosure turnover state: The forklift assembly 4 extends outward and rotates to a vertical position, so that the forklift assembly 4 is positioned behind the storage platform 2; the roller frames 3 on both sides rotate to a vertical position; the forklift assembly 4 and the two sets of roller frames 3 together form a U-shaped enclosure structure.

[0059] The above technical solution can achieve the following technical effects:

[0060] 1. The AGV integrates multiple functions. Each functional module can be stored away when not in use, saving space. When in use, it can be extended to meet the needs of various scenarios.

[0061] 2. The roller frames 3 located on both sides have three functions: First, in the shelf turnover state, they are vertically positioned on both sides of the storage platform 2, directly supporting the shelf above them. They can use surface friction to drive the shelf to move, or they can support the shelf to drive it to move. Second, in the self-turnover state of the goods box, they can rotate to a horizontal state, and the goods box is placed directly on the roller frames 3. When the storage platform 2 is raised to a specified height, the roller frames 3 are aligned with the receiving platform, and the roller frames 3 can then rotate to drive the goods above them to automatically transfer to the receiving platform, completing a rapid turnover. Third, in the enclosure turnover state, operators can place various goods directly on the storage platform 2. The roller frames 3, which are vertically distributed on both sides, can enclose the goods from both sides to prevent them from falling off.

[0062] The roller frame 3 is designed with two sets, which can reduce the length on one side and reduce the footprint;

[0063] 3. The forklift assembly 4 is designed with the following four functions: First, it can be stored inside the trolley when not in use, without taking up extra space; Second, in the forklift turnover state, the forks can be extended and inserted into the pallet to complete the forklift operation; Third, the forklift assembly 4 can not only insert into the pallet, but also drive the pallet to lift and lower, completing the transfer needs at a certain height. Moreover, the forklift assembly 4 and the loading platform 2 share the scissor lift assembly as the lifting power source, without the need for a separate lifting drive structure, making control simple; Fourth, in the enclosure turnover state, the forklift assembly 4 can rotate 90° and be placed on the back of the loading platform 2, forming a back stop structure.

[0064] In this embodiment, the storage platform 2 includes a main support plate 21, a back plate 22, and a protective cover 23; the main support plate 21 has second receiving slots 211 on both sides, and the AGV trolley body 1 has first receiving slots 11 on both sides of its top surface, with the first receiving slots 11 being relatively flush and positioned directly below the second receiving slots 211; the back of the main support plate 21 is connected to a vertically downward extending back plate 22, and the back of the AGV trolley body 1 has a vertical sliding groove 13 for the back plate 22 to slide into; the outer wall of the back plate 22 is provided with a protective cover 23;

[0065] When the roller frame 3 is in a vertical position, the bottom end of the roller frame 3 is retracted into the first receiving groove 11, the top of the roller frame 3 passes through the second receiving groove 211, and the extended part of the roller frame 3 is the side enclosure structure of the storage platform 2.

[0066] In the above technical solution, the design of the first receiving groove 11 and the second receiving groove 211 can completely store the vertical roller frame 3, thereby avoiding the roller frame 3 from being exposed and ensuring the flatness and passability of the side of the vehicle; when the main board support is in the lifting and lowering motion, it will drive the back plate 22 to move vertically along the slide, thereby driving the lifting and lowering action of the fork plate assembly 4.

[0067] In this embodiment, the front end of the main support plate 21 has multiple sets of first through slots 212, and a set of front stop components 6 are slidably installed inside each first through slot 212. The front stop components 6 include a front baffle 61, a spring rod 62 and an L-shaped fixing plate 63. The front baffle 61 is vertically slidably placed in the first through slot 212. The bottom end of the front baffle 61 is provided with a spring rod 62. The bottom end of the spring rod 62 is fixedly connected to the L-shaped fixing plate 63. The L-shaped fixing plate 63 is fixedly installed on the bottom surface of the main support plate 21.

[0068] The design of the front stop assembly 6 allows the front baffle 61, the roller frames 3 on both sides, and the fork assembly 4 to form a four-sided enclosure structure during the enclosure's turnover state, which is convenient for placing items. The front baffle 61 adopts a telescopic structure so that when the roller frame 3 rotates onto the main support plate 21, the front baffle 61 can be retracted under pressure.

[0069] In this embodiment, the roller frame 3 has a built-in self-rotating roller. The self-rotating roller can autonomously transport goods to the designated receiving platform.

[0070] In this embodiment, the scissor lift assembly 7 includes a third drive motor 71, a movable rod 72, a third screw 73, a positioning plate 74, a first scissor frame 75, and a second scissor frame 76. The third drive motor and the positioning plate 74 are fixed to the inner bottom surface of the AGV trolley. The output end of the third drive motor is connected to the third screw 73. The movable rod 72 is threaded onto the outer wall of the third screw 73. The end of the third screw 73 is rotatably connected to the positioning plate 74. One end of the bottom of the first scissor frame 75 is hinged to one end of the movable rod 72, and the other end of the bottom is slidably connected to the inner bottom surface of the AGV trolley. The two movable ends of the top of the first scissor frame 75 are slidably connected to the bottom surface of the main support plate 21. The second scissor frame 76 adopts the same structural design as the first scissor frame 75.

[0071] The third drive motor 71 drives the third screw 73 to rotate, which in turn drives the movable rod 72 to move horizontally. When the movable rod 72 moves horizontally, it drives the first scissor frame 75 and the second scissor frame 76 located on both sides to move synchronously, thereby completing the lifting and lowering movement of the main support plate 21.

[0072] The AGV vehicle body 1 has a main control panel 12 at the front.

[0073] Example 2

[0074] like Figures 7-13 As shown, based on the above embodiments, this embodiment further provides the following:

[0075] To ensure that the left and right roller frames 3 can open and close synchronously, and that the rotation angle is controlled within 0-90°, this embodiment provides the following technical solution:

[0076] In this embodiment, the flipping assembly 5 includes a U-shaped frame 51, a pneumatic rod 52, a lifting frame 53, a drive rod 54, a main drive assembly 55, and a guide assembly 56. The U-shaped frame 51 is located on the bottom surface of the main support plate 21. A pneumatic rod 52 is located in the middle of the U-shaped frame 51. The top end of the pneumatic rod 52 is vertically fixedly connected to the lifting frame 53. Both ends of the horizontally arranged lifting frame 53 are rotatably connected to swing rods 531. The outer ends of the swing rods 531 are vertically fixedly connected to the drive rods 54. Both ends of each drive rod 54 are rotatably connected to a set of flipping linkage assemblies. The top ends of the two sets of flipping linkage assemblies are fixedly connected to a set of roller frames 3. The inner wall of the second receiving groove 211 has two symmetrically opened rotating grooves 2111. Each rotating groove 2111 has a set of flipping linkage assemblies installed inside it.

[0077] The pneumatic rod 52 can drive the lifting frame 53 to move upward, which in turn drives the four flipping linkage components located at the four corners to move synchronously, so as to drive the two sets of roller frames 3 above to flip, making the flipping action of the roller frames 3 more efficient.

[0078] In this embodiment, the flipping linkage component includes a main drive component 55 and a guide component 56;

[0079] The main drive assembly 55 includes a main drive column 551, with a roller frame 3 vertically fixedly connected to the top of the main drive column 551. A mounting bracket 554 is provided on the inner wall of the bottom end of the main drive column 551, and the end of the drive rod 54 is rotatably embedded in the mounting bracket 554. A first guide column 552 is provided in the middle of the inner wall of the main drive column 551, and a second guide column 553 is provided at the bottom of the inner wall.

[0080] The guide assembly 56 includes a vertical guide frame 561, which is fixed in the rotating groove 2111. The guide frame has a vertical groove inside, and the top of the inner wall of the guide frame has a quarter-circular arc-shaped guide frame 562. The arc-shaped guide frame 562 has an arc-shaped groove inside, which is connected to the middle of the vertical groove.

[0081] In the vertical position of the roller frame 3, the first guide post 552 is placed at the top of the vertical groove, and the second guide post 553 is placed inside the vertical groove and at the entrance of the arc groove.

[0082] In the horizontal position of the roller frame 3, the first guide post 552 is placed at the top of the vertical groove, and the second guide post 553 is placed at the inner end of the arc groove.

[0083] In the above technical solution, by utilizing the cooperation of the first guide post 552, the second guide post 553, the vertical groove, and the arc groove, two movements, vertical movement and flipping movement, can be realized, thereby completing the flipping of the roller frame 3.

[0084] When the roller frame 3 is in the vertical position: the main drive column 551 is in the horizontal position, the roller frame 3 is in the vertical position, the first guide column 552 is placed at the top of the vertical groove, the second guide column 553 is placed at the inner end of the arc groove, and the pneumatic rod 52 is in the extended position; the lifting frame 53 is above the drive column, and the swing rod 531 extends outward at an angle.

[0085] In the vertical-horizontal state: the pneumatic rod 52 retracts, thereby driving the lifting frame 53 to move downward, which in turn drives the main drive column 551 to rotate around the first guide column 552 via the swing rod 531. The second guide column 553 moves along the arc groove towards the opening. When the main drive column 551 rotates to the vertical state and the roller frame 3 is in the horizontal state, the first guide column 552 is still at the top of the vertical groove, and the second guide column 553 is at the position opposite to the vertical groove and the arc groove.

[0086] Example 3

[0087] like Figure 7 , Figures 14-17 As shown, based on the above embodiments, this embodiment further provides the following:

[0088] To achieve the aforementioned technical effects, the fork plate assembly 4 needs to address the following issues: 1. Design of the telescopic structure; 2. Design of the flipping structure; 3. Design of the assembly to rise and fall together with the back plate 22. Therefore, this embodiment provides the following solution:

[0089] In this embodiment, the fork plate assembly 4 includes a main fork plate 41, a flipping drive assembly, and a telescopic drive assembly 43. The main fork plate 41 includes a first fork plate 411, a second fork plate 412, and a connecting rod 413. One end of the connecting rod 413 is vertically fixed to the first fork plate 411, and the other end is vertically fixed to the second fork plate 412. The first fork plate 411, the second fork plate 412, and the connecting rod 413 are arranged in a certain shape. A second through slot 221 is provided in the back plate 22 for the first fork plate 411 and the second fork plate 412 to pass through.

[0090] The connecting rod 413 is engaged and connected with the flip drive assembly. The telescopic drive assembly 43 is fixed to the inner wall of the platform 2. The telescopic drive assembly 43 is used to drive the flip drive assembly and the main fork plate 41 to move synchronously.

[0091] In the above technical solution, the front ends of the first fork plate 411 and the second fork plate 412 are supported by the second through slot 221, and the rear ends are supported by the flip drive component. The flip drive component is lifted and positioned by the telescopic drive component 43, and the telescopic drive component 43 is fixed to the inner wall of the storage platform 2, so that the fork plate component 4 as a whole can follow the storage platform 2 to rise and fall.

[0092] In this embodiment, both the outer ends of the first fork plate and the second fork plate are provided with mating grooves 414.

[0093] With the design of the retaining groove 414, the forklift can not only lift the pallet, but also extend under the rack, so that the edge beam of the rack is placed in the retaining groove 414. In this way, when the AGV moves forward, it will pull the rack to follow the movement, so that the AGV can also be extended to pull the rack.

[0094] In this embodiment, the flip drive assembly includes a drive housing 42, inside which a first drive motor 421 is installed, and a first screw 4211 is installed at the output end of the first drive motor 421; a gear 4131 is provided in the middle of the connecting rod 413, and the first screw 4211 is meshed with the gear 4131.

[0095] The telescopic drive assembly 43 includes a second drive motor 431, which is fixed to the inner wall of the AGV trolley body. The output end of the second drive motor 431 is connected to a second screw 432. The end of the second screw 432 is rotatably connected to a fixing plate 433, which is fixedly connected to the inner wall of the AGV trolley body. A movable plate 434 is threaded onto the outer wall of the second screw 432, and the movable plate 434 is fixedly connected to the drive housing 42.

[0096] In this embodiment, the interior of the protective cover 23 is a cavity structure. The bottom surface of the protective cover 23 is symmetrically provided with lower baffles 231 on both sides. The two sets of lower baffles 231 are used to support the first fork plate 411 and the second fork plate 412 respectively. The protective cover 23 is used as a storage area for the extended state drive housing 42. The protective cover 23 has through holes 232 on both sides for the connecting rod 413 to extend outward.

[0097] The lower baffle 231 can assist in supporting the forklift platform, and the cover 23 can accommodate the extended drive unit 42, preventing the drive unit 42 from being exposed and ensuring the overall aesthetics of the vehicle.

[0098] In specific implementation of this invention:

[0099] The AGV (Automated Guided Vehicle) has the following extended states:

[0100] Shelf turnover status:

[0101] Two sets of roller frames 3 are respectively placed vertically on both sides of the AGV trolley body 1; the shelf to be transferred is placed above the storage platform 2; the fork assembly 4 is retracted into the interior of the AGV trolley body 1; the two front baffles 61 are in an extended state, and the top of the front baffles 61 is flush with the top surface of the roller frames 3.

[0102] When loading the shelving: the trolley moves to the bottom of the shelving, the scissor lift assembly 7 drives the main support plate 21 to move upward, which in turn drives the left and right roller frames 3, back plate 22 and fork plate assembly 4 to move upward. When the top surface of the roller frame 3 contacts the bottom surface of the shelving, if the shelving has rollers, the trolley can move directly, and the friction resistance caused by the friction pad on the top surface of the roller frame 3 can drive the shelving to move; if the shelving does not have rollers, the scissor lift assembly 7 continues to drive the main support plate 21 to rise, so that the shelving is in a suspended state, and the trolley can move forward to drive the shelving to move.

[0103] Cargo container self-turnover status:

[0104] Both sets of roller frames 3 are horizontally placed on the placement platform 2 to form a roller platform. The cargo box is placed on the roller platform, and the roller platform is used to actively transport the cargo box above it to the receiving platform at a specified height; the fork plate assembly 4 is stored inside the AGV trolley body 1.

[0105] When loading the cargo box: the goods are placed directly on the roller platform, and then the trolley moves to the designated position according to the instructions. Then the scissor lifting assembly 7 drives the main pallet 21 to move upward, so as to lift the cargo box to a position aligned with the receiving platform. The rollers of the roller platform rotate, so that the cargo box is automatically transferred to the receiving platform.

[0106] Forklift turnover status: The fork assembly 4 extends horizontally outward from the AGV trolley body 1 to lift the pallet and the goods on the pallet;

[0107] When loading goods placed on a pallet: the second drive motor 431 drives the second screw 432 to rotate, which in turn drives the movable plate 434 to move. The movable plate 434 pushes the drive housing 42 to move outward, which in turn drives the first fork plate 411 and the second fork plate 412 to extend outward. When the drive housing 42 is placed inside the cover 23 and the connecting rod 413 is placed at the through hole 232, the extension action can be completed.

[0108] When the trolley moves to the designated position, the first fork plate 411 and the second fork plate 412 are inserted into the pallet. Then, the scissor lift assembly 7 pushes the main support plate 21 and the back plate 22 upward, thereby driving the fork plate assembly 4 to move upward as a whole, thereby driving the goods to rise or relying on friction to resist the pallet. Then the trolley moves, which can drive the goods to the designated position.

[0109] When the rack with rollers needs to be pulled, the first fork plate 411 and the second fork plate 412 are placed under the rack. Then the first fork plate 411 and the second fork plate 412 are raised, and the crossbeams of the rack are relatively embedded in the matching grooves 414. Then the rack can be pulled to move when the trolley moves.

[0110] Fence turnover state: The fork plate assembly 4 extends outward and rotates to a vertical state so that the fork plate assembly 4 is placed on the back of the placement platform 2; the roller frames 3 on the left and right sides rotate to a vertical state; the fork plate assembly 4 and the two sets of roller frames 3 together form a U-shaped fence structure.

[0111] This state is suitable for placing goods that need to be fenced off or for placing some loose goods;

[0112] When the first fork plate 411 and the second fork plate 412 extend outward, the first drive motor 421 drives the first screw 4211 to rotate, which in turn drives the gear 4131 to rotate, which in turn drives the connecting rod 413 to rotate 90°. The first fork plate 411 and the second fork plate 412 rotate 90° to the back of the trolley, forming a rear enclosure. The roller frames 3 on both sides are in a vertical state, and the front baffle 61 is in a front baffle state. In this way, the goods can be stably placed in the enclosure structure.

[0113] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0114] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An extendable intelligent AGV vehicle, characterized in that: The AGV trolley body is provided with a control panel at the front end, a storage platform is installed at the middle of the top surface of the AGV trolley body, roller frames are installed at both sides of the top surface of the AGV trolley body, a scissor type lifting assembly, a turnover assembly and a telescopic moving fork plate assembly are installed inside the AGV trolley body; The top end of the scissor type lifting assembly is assembled and connected with the storage platform, the back of the storage platform is fixedly connected with the fork plate assembly, and the scissor type lifting assembly is used to drive the synchronous lifting movement of the storage platform and the fork plate assembly; the turnover assembly is used to synchronously drive the two groups of roller frames to rotate to a vertical state or be horizontally placed on the storage platform; The AGV trolley comprises the following extended states: Pallet turnover state: the two groups of roller frames are vertically placed on both sides of the AGV trolley body, and the pallet to be transferred is placed above the storage platform; the fork plate assembly is retracted into the AGV trolley body; Container self-turnover state: the two groups of roller frames are horizontally placed on the storage platform to form a roller platform, the container is placed on the roller platform, and the roller platform is used to actively convey the container above to a designated height receiving platform; the fork plate assembly is retracted into the AGV trolley body; Forklift turnover state: the fork plate assembly is horizontally extended outside the AGV trolley body to support the pallet and the goods on the pallet; Fence turnover state: the fork plate assembly is extended and rotated to a vertical state so that the fork plate assembly is placed on the back of the storage platform; the roller frames on the left and right sides are rotated to a vertical state; the fork plate assembly and the two groups of roller frames jointly form a U-shaped fence structure.

2. The expandable intelligent AGV trolley according to claim 1, characterized in that: The storage platform comprises a main supporting plate, a back plate and a protective cover; second accommodating grooves are formed in both sides of the main supporting plate, first accommodating grooves are formed in both sides of the top surface of the AGV trolley body, and the first accommodating grooves are arranged in a vertically aligned manner below the second accommodating grooves; the back of the main supporting plate is connected with a back plate extending vertically downward, a vertical sliding groove is formed in the back of the AGV trolley body for sliding insertion of the back plate; and the outer wall of the back plate is provided with the protective cover; When the roller frame is in the vertical state, the bottom end of the roller frame is retracted into the first accommodating groove, the top of the roller frame penetrates through the second accommodating groove, and the extended part of the roller frame forms a fence structure on both sides of the storage platform.

3. The expandable intelligent AGV cart of claim 2, wherein: A plurality of first through grooves are formed in the front end of the surface of the main supporting plate, and a front stop component is slidingly installed in each first through groove; the front stop component comprises a front stop plate, a spring rod and an L-shaped fixing plate, the front stop plate is vertically slidingly arranged in the first through groove, the bottom end of the front stop plate is provided with the spring rod, the bottom end of the spring rod is fixedly connected with the L-shaped fixing plate, and the L-shaped fixing plate is fixedly arranged on the bottom surface of the main supporting plate.

4. The expandable intelligent AGV cart of claim 2, wherein: The turnover assembly comprises a U-shaped frame, a pneumatic rod, a lifting frame, a driving rod, a main driving component and a guide component; the U-shaped frame is arranged on the bottom surface of the main supporting plate, the middle of the U-shaped frame is provided with the pneumatic rod, the top end of the pneumatic rod is fixedly connected with the lifting frame in a vertical manner, the lifting frame is horizontally arranged, both ends of the lifting frame are rotatably connected with a swing rod, the outer end of the swing rod is fixedly connected with the driving rod in a vertical manner, both ends of each driving rod are rotatably connected with a turnover linkage assembly, the top ends of the two turnover linkage assemblies are fixedly connected with a roller frame, and two rotating grooves are symmetrically formed in the inner wall of the second accommodating groove, and a turnover linkage assembly is installed in each rotating groove.

5. The expandable intelligent AGV cart of claim 4, wherein: The turnover linkage assembly comprises a main driving assembly and a guide assembly. The main driving assembly comprises a main driving column, a top end of the main driving column is fixedly connected with a roller frame in a vertical manner, an inner wall of a bottom end of the main driving column is provided with an assembly sleeve, and an end of a driving rod is rotatably embedded in the assembly sleeve; a first guide column is arranged in a middle portion of the inner wall of the main driving column, and a second guide column is arranged at a bottom portion of the inner wall. The guide assembly comprises a vertical guide frame, the vertical guide frame is fixedly arranged in a rotating groove, a vertical groove is formed in an inner portion of the vertical guide frame, an arc-shaped guide frame with a quarter-circle structure is arranged at a top portion of the inner wall of the vertical guide frame, and an arc-shaped groove is formed in an inner portion of the arc-shaped guide frame and is in communication with a middle portion of the vertical groove. In a vertical state of the roller frame, the first guide column is arranged at a top end of the vertical groove, and the second guide column is arranged in the vertical groove and at an entrance of the arc-shaped groove. In a horizontal state of the roller frame, the first guide column is arranged at a top end of the vertical groove, and the second guide column is arranged at an inner end of the arc-shaped groove.

6. The expandable intelligent AGV cart of claim 5, wherein: The fork plate assembly comprises a main fork plate, a turnover driving assembly, and an extension driving assembly, the main fork plate comprises a first fork plate, a second fork plate, and a connecting rod, one end of the connecting rod is fixedly connected with the first fork plate in a vertical manner, the other end of the connecting rod is fixedly connected with the second fork plate in a vertical manner, the first fork plate, the second fork plate, and the connecting rod are arranged in a shape, and a second through groove is formed in the back plate and is used for the first fork plate and the second fork plate to pass through. The connecting rod is engagedly and fixedly connected with the turnover driving assembly, the extension driving assembly is fixedly arranged in an inner wall of the storage platform, and the extension driving assembly is used to drive the turnover driving assembly and the main fork plate to synchronously extend and retract.

7. The expandable intelligent AGV cart of claim 6, wherein: Cooperating blocking grooves are formed in outer ends of surfaces of the first fork plate and the second fork plate.

8. The expandable intelligent AGV cart of claim 6, wherein: The turnover driving assembly comprises a driving machine box, a first driving motor is arranged in an inner portion of the driving machine box, a first screw rod is arranged at an output end of the first driving motor, a gear is arranged in a middle portion of the connecting rod, and the first screw rod is engagedly connected with the gear. The extension driving assembly comprises a second driving motor, the second driving motor is fixedly arranged in an inner wall of the AGV small vehicle body, a second screw rod is connected with an output end of the second driving motor, an end of the second screw rod is rotatably connected with a fixed plate, the fixed plate is fixedly connected with the inner wall of the AGV small vehicle body, an activity plate is threadedly sleeved with an outer wall of the second screw rod, and the activity plate is fixedly connected with the driving machine box.

9. The expandable intelligent AGV cart of claim 8, wherein: An inner portion of the protective cover is a cavity structure, lower blocking plates are symmetrically arranged at two sides of a bottom surface of the protective cover, and the two groups of lower blocking plates are used to respectively hold the first fork plate and the second fork plate; the protective cover is used as a storage area of the driving machine box in an extended state, and through holes are formed at two sides of the protective cover and are used for the connecting rod to extend.

10. The expandable intelligent AGV cart of claim 1, wherein: The roller frame is internally provided with a self-rotating roller.

Images