Storage and taking device and method for cargo transportation

Abstract

The invention provides a storing and taking device and method for cargo transportation. The storing and taking device comprises a bottom plate, a circular plate is arranged above the bottom plate, an arc-shaped frame is installed on the circular plate in a sliding mode, frame bodies are arranged on the two sides of the arc-shaped frame, a first conveying belt body is arranged in the arc-shaped frame, and a second conveying belt body is arranged in each frame body; the two sides of the arc-shaped frame are each fixedly provided with a set of connecting plates. Through cooperative operation of a third motor, a bevel gear, a rotating shaft, a driving gear, a driven gear and other components, the inclination angle of the frame body and the second conveying belt body can be accurately adjusted, the device can be in butt joint with conveying platforms with the same height or different heights on the two sides, the one-way conveying limitation caused by the height difference of the platforms is broken through, two-way conveying is achieved, and the conveying efficiency is improved. And the positions of the device and the frame body can be flexibly changed through rotation, so that the connection requirements (such as right-angle turning of a production line) of crossed, vertical or inclined conveying lines can be easily met, and the space adaptability of the device is expanded.

Description

Technical Field

[0001] The present invention belongs to the technical field of cargo transportation, and more specifically, particularly relates to a storage and access device and method for cargo transportation. Background Art

[0002] In cargo transportation and logistics systems, conveyor belt devices are widely used in scenarios such as production lines, warehousing logistics, sorting centers, etc., to achieve efficient and continuous transfer of goods.

[0003] There are still some deficiencies in the current storage and access devices for cargo transportation during actual use:

[0004] 1. When dealing with conveyor platforms of different heights, many devices lack an effective adjustment mechanism. Common devices can only adapt to conveyor belts of the same height. Once there is a height difference between the two conveyor platforms on both sides, it is difficult to achieve efficient and stable cargo docking and transportation, restricting the scope of use of the device.

[0005] 2. Traditional storage and access devices for cargo transportation only support straight or fixed-angle transportation and cannot adapt to the connection requirements of cross, vertical, or curved paths (such as a right-angle turn on a production line), resulting in poor applicability.

[0006] Therefore, in view of this, research and improvement are carried out on the existing structure and deficiencies to provide a storage and access device and method for cargo transportation, with the expectation of achieving a more practical value. Summary of the Invention

[0007] To solve the above technical problems, the present invention provides a storage and access device and method for cargo transportation, which are achieved by the following specific technical means:

[0008] A storage and retrieval device for cargo transportation, including a bottom plate. Above the bottom plate, there is a circular plate. An arc-shaped frame is slidably mounted on the circular plate. On both sides of the arc-shaped frame, there are frame bodies. Inside the arc-shaped frame, there is a first conveyor belt main body. Inside each frame body, there is a second conveyor belt main body. On both sides of the arc-shaped frame, a group of connecting plates are fixedly installed. At both ends of each frame body, a connecting shaft is fixedly installed. Each connecting shaft is rotatably connected to the connecting plate respectively. On each connecting shaft, a driven gear is fixedly installed. Inside the arc-shaped frame, two third motors are fixedly installed. On the output shaft of each third motor, a first bevel gear is fixedly installed. On both sides of the arc-shaped frame, a rotating shaft is rotatably installed. On each rotating shaft, a second bevel gear is fixedly installed. Each first bevel gear meshes with the second bevel gear respectively. At both ends of each rotating shaft, a driving gear is fixedly installed. Each driving gear meshes with the driven gear respectively, for adjusting the inclination angle of the frame body. On the connecting plates located inside the frame body, arc-shaped plates are fixedly installed. On one side of each arc-shaped plate, there is an arc-shaped rod. On the surface of each arc-shaped plate, an arc-shaped groove is opened. Inside each arc-shaped groove, a slider is slidably installed. Each slider is fixedly installed at the outer end of the frame body. On each arc-shaped rod, a number of U-shaped sleeves adapted to the sliders are fixedly installed at equal circumferential intervals. On the arc-shaped frame, a turntable is fixedly installed. Above the turntable, there is a connecting ring. On the upper surface of the turntable, a number of positioning grooves are opened at equal circumferential intervals. On the connecting ring, a positioning post adapted to the positioning groove is fixedly installed, for limiting the position of the arc-shaped frame.

[0009] Further, on each frame body, a second motor for driving the second conveyor belt main body to roll and run is fixedly installed. On the arc-shaped frame, a first motor for driving the first conveyor belt main body to roll and run is fixedly installed. At the bottom end of the circular plate, a fourth motor is fixedly installed. On the output shaft of the fourth motor, a driving gear is fixedly installed. On the turntable, a toothed ring is fixedly installed. The driving gear meshes with the toothed ring. An avoidance groove is opened on the bottom surface of the arc-shaped frame.

[0010] Further, on each arc-shaped plate, a limiting member is fixedly installed. On each limiting member, a threaded rod is rotatably installed. On each arc-shaped rod, a connecting block is fixedly installed. Each threaded rod respectively penetrates through the connecting block and is threadedly connected to the connecting block.

[0011] Further, on the surface of each connecting block, a limiting groove is opened. Each limiting member respectively passes through the limiting groove movably, for limiting the movement of the connecting block. On each threaded rod, a gear is fixedly installed.

[0012] Further, a cylinder is fixed in the middle of the upper end of the circular plate. The turntable is sleeved on the cylinder. An annular groove is formed on the surface of the cylinder. The turntable is located at the annular groove. A rectangular groove is concaved in the upper surface of the cylinder.

[0013] Further, a connecting rod is fixedly installed at the upper end of the connecting ring. The connecting rod is located at the rectangular groove. A round rod is fixedly installed in the middle of the upper end of the connecting rod. Two fixing blocks are fixedly installed on the round rod.

[0014] Further, a T-shaped rod penetrates between the two fixing blocks. The round rod movably penetrates the T-shaped rod. Two racks are fixedly installed on the T-shaped rod. The two gears are respectively engaged with the racks.

[0015] Further, a fixing plate is fixedly installed on the arc-shaped frame. A limiting plate is fixedly installed at the bottom end of the fixing plate. The limiting plate movably penetrates the T-shaped rod. A cylinder one is fixedly installed at the upper end of the cylinder. The telescopic rod of the cylinder one is fixedly connected with the round rod. The top end of the round rod movably penetrates the fixing plate.

[0016] Further, a cylinder two is fixedly installed in the middle of the upper end of the bottom plate. The telescopic rod two of the cylinder two is fixedly connected with the middle of the bottom end of the circular plate, for adjusting the height of the circular plate. Four cylinders are fixedly installed on the upper end of the bottom plate at equal circumferential intervals. A guiding column is slidably installed in each cylinder. Each guiding column is fixedly connected with the bottom end of the circular plate, for limiting the movement of the circular plate.

[0017] Further, both the arc-shaped frame and the conveyor belt main body one are arc-shaped. Anti-slip patterns are arranged on the outer side surfaces of the conveyor belt main body one and the two conveyor belt main bodies two.

[0018] A using method of a storage and access device for transporting goods includes the following steps:

[0019] Step one: Adjust the inclination angles of the frame body and the conveyor belt main body two, so that the device can be smoothly docked with the conveying platforms with equal heights on both sides and unequal heights on both sides.

[0020] Step two: Lock the positions of the two frame bodies after angle adjustment and the position of the arc-shaped frame after rotation.

[0021] Step three: Start the first motor to drive the conveyor belt main body one to roll and run, and start the second motor to drive the conveyor belt main body two to roll and run, so as to realize the transportation of goods from one conveying platform to another conveying platform through this device.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. Through the coordinated operation of the third motor, bevel gears, rotating shafts, driving gears and driven gears, the inclination angles of the frame and the conveyor belt body can be accurately adjusted, so that the device can be connected to conveying platforms of equal or unequal heights on both sides, breaking through the one-way conveying limitation caused by the height difference of the platforms and realizing two-way conveying. It greatly improves the applicability in different height difference conveying scenarios and meets the diverse needs of cargo transportation.

[0024] 2. The arc frame and the conveyor belt body adopt an arc design, which is combined with the movable connection between the turntable and the cylinder, so that the arc frame can rotate with the cylinder as the axis. It is not only suitable for two mutually perpendicular conveying platforms, but also can flexibly change the position of itself and the frame through rotation, easily meeting the connection requirements of cross, vertical or oblique conveyor lines (such as right-angle turns in production lines), and expanding the spatial adaptability of the device.

[0025] 3. The cargo transport storage and retrieval device, on the one hand, uses a cylinder to drive the round rod, connecting rod and connecting ring to move downward, so that the positioning column is inserted into the positioning groove, thereby locking the rotation position of the arc frame and the frame body. On the other hand, during the downward movement of the round rod, the U-shaped sleeve is sleeved on the slider through the transmission of racks, gears, threaded rods, etc., to complete the locking of the position of the frame after the angle adjustment. The design of locking the angle position of the frame while locking the rotation position of the arc frame enhances the stability of the device during cargo transportation and prevents the transportation effect from being affected by position changes.

[0026] Fourth, cylinder 2 can drive the circular plate to move in the vertical direction, thereby driving the arc frame and the frame to move up and down, realizing convenient adjustment of the overall height of the device, so that the device can easily adapt to transportation scenarios of different heights. Whether it is docked with a higher or lower transportation platform, the height adjustment can ensure smooth transportation of goods. The circular plate is slidably connected to the guide column fixed on the bottom plate. The guide column limits the movement of the circular plate, ensuring the stability of the circular plate during vertical movement, avoiding deviation or shaking, and making the height adjustment process smooth and reliable.

[0027] 5. The outer surfaces of the conveyor belt body 1 and the two conveyor belt bodies 2 are provided with anti-slip grooves, which effectively increase the friction between the conveyor belt and the goods, ensure that the goods will not slip during transportation, and can move stably on the conveyor belt, thereby ensuring the safety and reliability of goods transportation. The conveyor belt body 1 and the two conveyor belt bodies 2 cooperate with each other to achieve efficient goods transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the entire storage and retrieval device for cargo transportation of the present invention.

[0029] Figure 2 It is a schematic diagram of the base plate of the present invention.

[0030] Figure 3 It is a schematic diagram of the arc-shaped frame of the present invention.

[0031] Figure 4 It is a schematic diagram of the fixed plate of the present invention.

[0032] Figure 5 It is a schematic diagram of the turntable of the present invention.

[0033] Figure 6 It is a schematic diagram of the frame body of the present invention.

[0034] Figure 7 It is a schematic diagram of the arc-shaped plate of the present invention.

[0035] Figure 8 It is a schematic diagram of the arc-shaped rod of the present invention.

[0036] Figure 9 It is a schematic diagram of the connecting shaft of the present invention.

[0037] Figure 10 It is a schematic diagram of the cylinder of the present invention.

[0038] Figure 11 It is a schematic diagram of the first state of the connection between the access device for goods transportation and the conveying platform of the present invention.

[0039] Figure 12 It is a schematic diagram of the second state of the connection between the access device for goods transportation and the conveying platform of the present invention.

[0040] In the figure, the corresponding relationship between the component names and the drawing reference numbers is as follows:

[0041] 1. Bottom plate; 11. Circular plate; 13. Cylinder II; 14. Cylindrical tube; 15. Guide post; 16. Cylinder; 17. Rectangular groove; 18. Annular groove; 2. Arc-shaped frame; 21. Conveyor belt body I; 22. First motor; 23. Connecting plate; 25. Fixed plate; 26. Cylinder I; 27. Limiting plate; 3. Frame body; 31. Conveyor belt body II; 32. Second motor; 33. Connecting shaft; 34. Driven gear; 4. Third motor; 41. Bevel gear I; 42. Rotating shaft; 43. Bevel gear II; 44. Driving gear; 5. Arc-shaped plate; 51. Arc-shaped groove; 52. Slide block; 53. Limiting member; 54. Threaded rod; 55. Gear; 6. Arc-shaped rod; 61. U-shaped sleeve; 62. Connecting block; 63. Limiting groove; 7. Turntable; 71. Positioning groove; 8. Connecting ring; 81. Positioning post; 82. Connecting rod; 83. Round rod; 84. Fixed block; 9. T-shaped rod; 91. Rack; 92. Tooth ring; 93. Fourth motor; 94. Driving gear. Detailed implementation manners

[0042] The following further describes the embodiments of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0043] In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0044] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] Embodiment:

[0046] As shown in the attached Figure 1 to the attached Figure 12 figures:

[0047] The present invention provides an access device for cargo transportation, including a bottom plate 1. Above the bottom plate 1, there is a circular plate 11. An arc-shaped frame 2 is slidably installed on the circular plate 11. On both sides of the arc-shaped frame 2, there are frame bodies 3. Inside the arc-shaped frame 2, there is a first conveyor belt body 21. Inside each frame body 3, there is a second conveyor belt body 31. On both sides of the arc-shaped frame 2, a group of connecting plates 23 are fixedly installed. At both ends of each frame body 3, a connecting shaft 33 is fixedly installed. Each connecting shaft 33 is respectively rotationally connected to the connecting plate 23. On each connecting shaft 33, a driven gear 34 is fixedly installed. Inside the arc-shaped frame 2, two third motors 4 are fixedly installed. On the output shaft of each third motor 4, a first bevel gear 41 is fixedly installed. On both sides of the arc-shaped frame 2, a rotating shaft 42 is rotationally installed. On each rotating shaft 42, a second bevel gear 43 is fixedly installed. Each first bevel gear 41 is respectively meshed with the second bevel gear 43. At both ends of each rotating shaft 42, a driving gear 44 is fixedly installed. Each driving gear 44 is respectively meshed with the driven gear 34 to adjust the inclination angle of the frame body 3;

[0048] Arc-shaped plates 5 are fixedly installed on the connecting plates 23 inside the frame body 3. An arc-shaped rod 6 is arranged on one side of each arc-shaped plate 5. An arc-shaped groove 51 is formed on the surface of each arc-shaped plate 5. A slider 52 is slidably installed in each arc-shaped groove 51. Each slider 52 is fixedly installed at the outer end of the frame body 3. A number of U-shaped sleeves 61 adapted to the sliders 52 are fixedly installed on each arc-shaped rod 6 at equal circumferential intervals. The groove of the U-shaped sleeve 61 is sleeved on the slider 52 fixed at the outer end of the frame body 3, which is used to lock the positions of the slider 52 and the frame body 3 to ensure stability during the conveying process;

[0049] A turntable 7 is fixedly installed on the arc-shaped frame 2. A connecting ring 8 is arranged above the turntable 7. A number of positioning grooves 71 are formed on the upper surface of the turntable 7 at equal circumferential intervals. A positioning post 81 adapted to the positioning grooves 71 is fixedly installed on the connecting ring 8, which is used to limit the position of the arc-shaped frame 2. When the positioning post 81 aligns with and inserts into the positioning grooves 71 formed on the upper surface of the turntable 7 at equal circumferential intervals, the position of the turntable 7 is firmly locked to ensure the stability of the device during the conveying of goods;

[0050] A second motor 32 for driving the main conveyor belt two 31 to roll is fixedly installed on each frame body 3. A first motor 22 for driving the main conveyor belt one 21 to roll is fixedly installed on the arc-shaped frame 2. Start the first motor 22 to drive the main conveyor belt one 21 to roll, and start the second motor 32 to drive the main conveyor belt two 31 to roll to realize the conveying of goods;

[0051] A limiting member 53 is fixedly installed on each arc-shaped plate 5. A threaded rod 54 is rotatably installed on each limiting member 53. A connecting block 62 is fixedly installed on each arc-shaped rod 6. Each threaded rod 54 passes through the connecting block 62 and is threadedly connected to the connecting block 62. A limiting groove 63 is formed on the surface of each connecting block 62. Each limiting member 53 movably passes through the limiting groove 63, which is used to limit the movement of the connecting block 62. A gear 55 is fixedly installed on each threaded rod 54. Two racks 91 are fixedly installed on the T-shaped rod 9. The two gears 55 are respectively engaged with the racks 91. The two racks 91 are respectively engaged with the two gears 55. The downward movement of the rack 91 drives the gear 55 to rotate. The rotation of the gear 55 drives the threaded rod 54 to rotate. The threaded rod 54 is threadedly connected to the connecting block 62. The rotation of the threaded rod 54 causes the connecting block 62 and the arc-shaped rod 6 connected thereto to move closer to the arc-shaped plate 5;

[0052] A cylinder 16 is fixed in the middle of the upper end of the circular plate 11. The turntable 7 is sleeved on the cylinder 16. An annular groove 18 is formed on the surface of the cylinder 16. The turntable 7 is located at the annular groove 18, which is used to limit the turntable 7 to prevent it from detaching from the cylinder 16;

[0053] The upper surface of the cylinder 16 is concavely provided with a rectangular groove 17. The upper end of the connecting ring 8 is fixedly installed with a connecting rod 82. The connecting rod 82 is located at the rectangular groove 17 and is used to limit the connecting ring 8 to prevent the connecting ring 8 from rotating;

[0054] The middle part of the upper end of the connecting rod 82 is fixedly installed with a round rod 83. Two fixing blocks 84 are fixedly installed on the round rod 83. A T-shaped rod 9 penetrates between the two fixing blocks 84. The round rod 83 movably penetrates the T-shaped rod 9. The two fixing blocks 84 can drive the T-shaped rod 9 to move in the vertical direction;

[0055] A fixing plate 25 is fixedly installed on the arc-shaped frame 2. The bottom end of the fixing plate 25 is fixedly installed with a limiting plate 27. The limiting plate 27 movably penetrates the T-shaped rod 9. The upper end of the cylinder 16 is fixedly installed with a cylinder one 26. The telescopic rod of the cylinder one 26 is fixedly connected to the round rod 83. The top end of the round rod 83 movably penetrates the fixing plate 25 and is used to drive the round rod 83 to move in the vertical direction;

[0056] The middle part of the upper end of the bottom plate 1 is fixedly installed with a cylinder two 13. The telescopic rod two of the cylinder two 13 is fixedly connected to the middle part of the bottom end of the round plate 11 and is used to adjust the height of the round plate 11. Four cylinders 14 are fixedly installed on the upper end of the bottom plate 1 at equal circumferential intervals. A guide post 15 is slidably installed in each cylinder 14. Each guide post 15 is fixedly connected to the bottom end of the round plate 11 and is used to limit the movement of the round plate 11;

[0057] The bottom end of the round plate 11 is fixedly installed with a fourth motor 93. The output shaft of the fourth motor 93 is fixedly installed with a driving gear 94. A toothed ring 92 is fixedly installed on the turntable 7. The driving gear 94 meshes with the toothed ring 92. An avoidance groove is provided on the bottom surface of the arc-shaped frame 2 for the arc-shaped frame 2 to avoid the driving gear 94 when rotating to avoid the situation of movement interference;

[0058] Both the arc-shaped frame 2 and the conveyor belt main body one 21 are arc-shaped. The outer surfaces of the conveyor belt main body one 21 and the two conveyor belt main bodies two 31 are both provided with anti-slip lines, which increase the friction between the conveyor belt and the goods, ensure that the goods will not slip during the conveying process, and can move stably on the conveyor belt.

[0059] A usage method of a storage and retrieval device for transporting goods includes the following steps:

[0060] Step one: Adjust the inclination angles of the frame 3 and the conveyor belt main body two 31 so that the device can be smoothly docked with the conveying platforms with equal height on both sides and unequal height on both sides;

[0061] Step two: Lock the positions of the two frames 3 after the angle adjustment and the position of the arc-shaped frame 2 after rotation;

[0062] Step 3: Start the first motor 22 to drive the main conveyor belt 21 to roll, and start the second motor 32 to drive the main conveyor belt 31 to roll, so as to realize the transportation of goods from one conveyor platform to another through this device.

[0063] The working principle of this embodiment:

[0064] Step 1: First, place the access device for transporting goods between two conveyor platforms (conveyor belts). When it is necessary to adjust the inclination angle of the main conveyor belt 31 in the face of conveyor platforms at different heights, start the third motor 4. The output shaft of the third motor 4 drives the first bevel gear 41 to rotate. The first bevel gear 41 meshes with the second bevel gear 43, thereby driving the second bevel gear 43 to rotate. The rotation of the second bevel gear 43 causes the rotating shaft 42 fixedly connected thereto to rotate. The driving gears 44 at both ends of the rotating shaft 42 rotate together with the rotating shaft 42. The driving gears 44 mesh with the driven gears 34, driving the driven gears 34 and the connecting shaft 33 to rotate, and further enabling the frame 3 and the main conveyor belt 31 to rotate around the connecting shaft 33 as the axis, realizing the adjustment of the inclination angle of the frame 3 and the main conveyor belt 31, enabling this device to be smoothly docked with conveyor platforms (conveyor belts) of the same height on both sides and different heights on both sides, and breaking the limitation of one-way transportation caused by the height difference of the conveyor platforms, realizing two-way transportation, and greatly improving the applicability and flexibility of the device;

[0065] Step 2: Since the turntable 7 fixedly installed on the arc-shaped frame 2 is movably sleeved on the cylinder 16, the arc-shaped frame 2 can rotate around the cylinder 16 as the axis. Start the fourth motor 93 to make the driving gear 94 rotate. The rotation of the driving gear 94 drives the toothed ring 92 to rotate. The rotation of the toothed ring 92 drives the turntable 7 to rotate. The rotation of the turntable 7 drives the arc-shaped frame 2 to rotate, which can flexibly change the rotation positions of the arc-shaped frame 2 and the two frames 3, and conveniently and quickly achieve precise docking with two conveyor platforms at different positions and angles, further expanding the application range of the device in complex conveying environments, and is particularly suitable for the connection of cross or vertical conveyor belts (such as the right-angle turning scenario of a production line);

[0066] Step 3: After adjusting the positions of the arc-shaped frame 2 and the two frames 3, start the cylinder 26 on the cylinder 16. The telescopic rod of the cylinder 26 drives the round rod 83 to move downward. The round rod 83 is connected to the connecting ring 8 through the connecting rod 82. Therefore, the downward movement of the round rod 83 will drive the connecting rod 82 and the connecting ring 8 to move downward together. The positioning column 81 on the connecting ring 8 moves downward with the connecting ring 8. When the positioning column 81 aligns with and inserts into the positioning grooves 71 equally spaced on the upper surface circumference of the turntable 7, the position of the turntable 7 is firmly locked, and further the positions of the arc-shaped frame 2 and the two frames 3 are locked, ensuring the stability of the device during the transportation of goods and avoiding affecting the transportation effect due to position changes;

[0067] Step 4: While the round rod 83 moves downward, the T-shaped rod 9 and the two racks 91 fixed on the T-shaped rod 9 also move downward accordingly. The two racks 91 are respectively engaged with the two gears 55. The downward movement of the racks 91 drives the gears 55 to rotate. The gears 55 are fixedly connected to the threaded rods 54. The rotation of the gears 55 drives the threaded rods 54 to rotate. The threaded rods 54 are threadedly connected to the connecting blocks 62. The rotation of the threaded rods 54 causes the connecting blocks 62 and the arc-shaped rods 6 connected thereto to move closer to the arc-shaped plate 5. The U-shaped sleeves 61 fixedly installed at equal circumferential intervals on the arc-shaped rods 6 move accordingly. When the grooves of the U-shaped sleeves 61 are aligned with and sleeved on the sliders 52 fixed at the outer end of the frame 3, the locking of the positions of the sliders 52 is completed. Since the frame 3 will drive the sliders 52 to slide in the arc-shaped grooves 51 formed on the surface of the arc-shaped plate 5 during angle adjustment, the U-shaped sleeves 61 being sleeved on the sliders 52 realizes the locking of the positions of the two frames 3 after angle adjustment, achieving the locking of the positions of the two frames 3 after angle adjustment while synchronously locking the rotation position of the arc-shaped frame 2, further enhancing the stability and reliability of the device during operation.

[0068] Step 5: The T-shaped rod 9 is located between the two fixed blocks 84. The limiting plate 27 fixedly installed at the bottom end of the fixing plate 25 movably penetrates through the T-shaped rod 9, enabling the arc-shaped frame 2 to drive the T-shaped rod 9 to rotate together when the position of the arc-shaped frame 2 is adjusted. When the round rod 83 moves upward, the two fixed blocks 84 can drive the T-shaped rod 9 and the two racks 91 to move synchronously in the vertical direction, ensuring the rationality of the structural design.

[0069] Step 6: Start the second cylinder 13. The telescopic rod two of the second cylinder 13 extends or retracts, driving the round plate 11 to move in the vertical direction. The movement of the round plate 11 will synchronously drive the arc-shaped frame 2 and the two frames 3 installed above it to move up and down, thereby realizing the adjustment of the overall height of the device to adapt to the conveying scenarios with different height requirements. In addition, the round plate 11 is slidably connected to the guide posts 15 in the four cylinders 14 fixedly installed at equal circumferential intervals on the upper end circumference of the bottom plate 1. The guide posts 15 are fixedly installed at the bottom end of the round plate 11, playing a reliable limiting role in the movement of the round plate 11, ensuring the stability of the round plate 11 during vertical movement, avoiding deviation or shaking, and ensuring that the device can smoothly adjust its height, providing guarantee for the smooth conveying of goods.

[0070] Step 7: Encoders are installed on the output shafts of the third motor 4 and the fourth motor 93. The encoders can accurately measure the angles of adjustment of the frame 3 and the rotation angle of the arc-shaped frame 2. Therefore, it can ensure that the U-shaped sleeve 61 is sleeved on the slider 52 to complete the locking, and the positioning post 81 can accurately insert into the positioning groove 71 to complete the locking of the position of the frame 3 after angle adjustment and the locking of the position of the arc-shaped frame 2 after rotation.

[0071] Step 8: After the device completes the above-mentioned adjustment and locking operations, start the first motor 22 to drive the main conveyor belt 21 to roll and run, and start the second motor 32 to drive the main conveyor belt 31 of the second conveyor belt to roll and run. Anti-slip patterns are provided on the outer surfaces of the main conveyor belt 21 and the two main conveyor belts 31 of the second conveyor belt, which increases the friction between the conveyor belt and the goods, ensures that the goods do not slip during the conveying process, can move stably on the conveyor belt, and realizes the smooth conveyance of the goods from one conveying platform to another through this device.

[0072] The embodiments of the present invention are given for purposes of illustration and description, and are not exhaustive or limit the invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are chosen and described in order to best explain the principles of the invention and its practical application, and to enable those of ordinary skill in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. An access device for cargo transportation, comprising a bottom plate (1), a circular plate (11) is arranged above the bottom plate (1), and an arc-shaped frame (2) is slidably mounted on the circular plate (11), and it is characterized in that: Both sides of the arc-shaped frame (2) are provided with frame bodies (3). A first conveyor belt body (21) is arranged inside the arc-shaped frame (2). A second conveyor belt body (31) is arranged inside each frame body (3). A group of connecting plates (23) are fixedly installed on both sides of the arc-shaped frame (2). Connecting shafts (33) are fixedly installed at both ends of each frame body (3). Each connecting shaft (33) is rotatably connected to the connecting plate (23). Two third motors (4) are fixedly installed inside the arc-shaped frame (2) for adjusting the inclination angle of the frame body (3). Among them, arc-shaped plates (5) are fixedly installed on the connecting plates (23) located inside the frame body (3). An arc-shaped rod (6) is arranged on one side of each arc-shaped plate (5). An arc-shaped groove (51) is formed on the surface of each arc-shaped plate (5). A slider (52) is slidably installed in each arc-shaped groove (51). Each slider (52) is fixedly installed at the outer end of the frame body (3). A number of U-shaped sleeves (61) adapted to the sliders (52) are fixedly installed on each arc-shaped rod (6) at equal circumferential intervals. Among them, a turntable (7) is fixedly installed on the arc-shaped frame (2). A connecting ring (8) is arranged above the turntable (7). A number of positioning grooves (71) are formed on the upper surface of the turntable (7) at equal circumferential intervals. A positioning post (81) adapted to the positioning groove (71) is fixedly installed on the connecting ring (8) for limiting the position of the arc-shaped frame (2).

2. The access device for cargo transportation according to claim 1, wherein: A driven gear (34) is fixedly installed on each connecting shaft (33). A first bevel gear (41) is fixedly installed on the output shaft of each third motor (4). Shafts (42) are rotatably installed on both sides of the arc-shaped frame (2). A second bevel gear (43) is fixedly installed on each shaft (42). Each first bevel gear (41) is meshed with the second bevel gear (43). A driving gear (44) is fixedly installed at both ends of each shaft (42). Each driving gear (44) is meshed with the driven gear (34). Among them, a second motor (32) for driving the second conveyor belt body (31) to roll is fixedly installed on each frame body (3). A first motor (22) for driving the first conveyor belt body (21) to roll is fixedly installed on the arc-shaped frame (2). A fourth motor (93) is fixedly installed at the bottom end of the circular plate (11). A driving gear (94) is fixedly installed on the output shaft of the fourth motor (93). A toothed ring (92) is fixedly installed on the turntable (7). The driving gear (94) is meshed with the toothed ring (92). An avoidance groove is formed on the bottom surface of the arc-shaped frame (2).

3. The access device for cargo transportation according to claim 2, characterized in that: A limiting member (53) is fixedly installed on each arc-shaped plate (5). A threaded rod (54) is rotatably installed on each limiting member (53). A connecting block (62) is fixedly installed on each arc-shaped rod (6). Among them, each threaded rod (54) penetrates through the connecting block (62) and is threadedly connected to the connecting block (62).

4. The access device for cargo transportation according to claim 3, characterized in that: A limiting groove (63) is formed on the surface of each of the connecting blocks (62), and each of the limiting members (53) movably penetrates through the limiting groove (63) to limit the movement of the connecting block (62). Wherein, a gear (55) is fixedly installed on each of the threaded rods (54).

5. The access device for cargo transportation according to claim 4, characterized in that: A cylinder (16) is fixed in the middle of the upper end of the circular plate (11). The turntable (7) is sleeved on the cylinder (16). An annular groove (18) is formed on the surface of the cylinder (16), and the turntable (7) is located at the annular groove (18). Wherein, a rectangular groove (17) is concaved on the upper surface of the cylinder (16).

6. The access device for cargo transportation according to claim 5, characterized in that: The upper end of the connecting ring (8) is fixedly installed with a connecting rod (82). The connecting rod (82) is located at the rectangular groove (17). A round rod (83) is fixedly installed in the middle of the upper end of the connecting rod (82). Two fixing blocks (84) are fixedly installed on the round rod (83).

7. The access device for cargo transportation according to claim 6, characterized in that: A T-shaped rod (9) penetrates between the two fixing blocks (84). The round rod (83) movably penetrates through the T-shaped rod (9). Two racks (91) are fixedly installed on the T-shaped rod (9). The two gears (55) are respectively meshed with the racks (91).

8. The access device for cargo transportation according to claim 7, characterized in that: A fixing plate (25) is fixedly installed on the arc-shaped frame (2). A limiting plate (27) is fixedly installed at the bottom end of the fixing plate (25). The limiting plate (27) movably penetrates through the T-shaped rod (9). Wherein, a cylinder one (26) is fixedly installed at the upper end of the cylinder (16). The telescopic rod of the cylinder one (26) is fixedly connected with the round rod (83). The top end of the round rod (83) movably penetrates through the fixing plate (25).

9. The access device for cargo transportation according to claim 8, characterized in that: A cylinder two (13) is fixedly installed in the middle of the upper end of the bottom plate (1). The second telescopic rod of the cylinder two (13) is fixedly connected with the middle of the bottom end of the circular plate (11) to adjust the height of the circular plate (11). Wherein, four cylinders (14) are fixedly installed on the upper end of the bottom plate (1) at equal circumferential intervals. A guide post (15) is slidably installed in each of the cylinders (14). Each of the guide posts (15) is fixedly connected with the bottom end of the circular plate (11) to limit the movement of the circular plate (11). The arc-shaped frame (2) and the conveyor belt main body one (21) are both arc-shaped. Anti-slip patterns are arranged on the outer surfaces of the conveyor belt main body one (21) and the two conveyor belt main bodies two (31).

10. A method of using an access device for cargo transportation, including the access device for cargo transportation according to any one of claims 1-9, characterized in that, Including the following steps: Step one: Adjust the inclination angles of the frame body (3) and the conveyor belt main body two (31) so that the device can be smoothly docked with the conveying platforms with the same height on both sides and different heights on both sides. Step two: Lock the positions of the two frame bodies (3) after angle adjustment and the position of the arc-shaped frame (2) after rotation. Step three: Start the first motor (22) to drive the conveyor belt main body one (21) to roll and run, and start the second motor (32) to drive the conveyor belt main body two (31) to roll and run, so as to realize the transportation of goods from one conveying platform to another through this device.

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