Stable rear unloading platform for grain transportation

Abstract

The application discloses a stable rear unloading platform for grain transportation, which comprises a bottom plate, mounting blocks and mounting holes, mounting blocks are fixedly connected to the outer surfaces of the two sides of the bottom plate, mounting holes are formed in the outer surfaces of the upper ends of the mounting blocks, the bottom plate is fixed to the ground through the mounting holes penetrated by bolt members, the outer surface of the upper end of the bottom plate is provided with a turnover unloading unit, and the outer surface of the upper end of the turnover unloading unit is provided with an unloading platform; the fixed assembly is arranged, the rotating rod can be driven to rotate clockwise by using a motor, the sliding block drives the rack to move, the rack is engaged with gear one, gear one drives connecting rod one to drive the driving roller to rotate, the transmission belt drives the transmission roller to rotate under the driving of the driving roller, the rotating shaft drives the U-shaped frame to rotate towards the direction of approaching the container, and the U-shaped frame is tightly attached to the outer surfaces of the two sides of the container, so that the container of different specifications can be fixed.

Description

Technical Field

[0001] This invention relates to the field of tipping unloading technology, specifically a stable rear unloading platform for grain transportation. Background Technology

[0002] my country is a major agricultural country, with its annual grain output ranking among the top in the world. With the development of science and technology, agricultural production has also shifted from primitive manual individual production to mechanized collective large-scale agricultural production. China's grain productivity has been significantly improved. After the bulk grain is harvested from the farmland, it is transported in special grain containers. After being transported to the grain warehouse, the containers are placed on the unloading platform and flipped backward. The grain is poured into the grain warehouse through the pipes installed at the rear of the containers.

[0003] The existing patent (publication number: CN214988780U) discloses a combined electrically controlled tilting and unloading platform, which can tilt and unload containers through the cooperation of moving blocks, tilting plates, screws, rotating plates, chains, motors and sprockets. All of them are mechanical parts, so there will be no contamination of grain during use. In addition, the mechanical structure is easy to disassemble and maintain, so maintenance can be completed quickly and it is easy to use.

[0004] Although the aforementioned patent can avoid oil leakage and contamination of grain by setting up a tilting unloading unit, facilitate maintenance, and allow for quick replacement of the unloading platform's support area according to the size of the container, enabling one unloading platform to meet the needs of containers of various sizes and saving costs, in actual use, the container is only limited by positioning posts, which has low stability and cannot guarantee that the positioning posts are always in contact with the container, reducing the stability of the container during the tilting process of the unloading platform. Summary of the Invention

[0005] The purpose of this invention is to solve the problem that existing grain unloading platforms only use positioning posts to limit the container, which has low stability and cannot guarantee that the positioning posts are always in contact with the container, thus reducing the stability of the container during the unloading platform's rotation. Therefore, this invention proposes a stable rear unloading platform for grain transportation.

[0006] The objective of this invention can be achieved through the following technical solutions:

[0007] A stable unloading platform for grain transportation includes a base plate, mounting blocks, and mounting holes. Mounting blocks are fixedly connected to both outer surfaces of the base plate, and mounting holes are formed on the upper outer surface of the mounting blocks. The base plate is fixed to the ground by bolts passing through the mounting holes. A tilting unloading unit is provided on the upper outer surface of the base plate, and an unloading platform is provided on the upper outer surface of the tilting unloading unit. A fixing component is provided on the outer surface of the unloading platform. A motor is provided near the middle of one outer surface of the unloading platform, and the output end of the motor extends into the interior of the unloading platform. A cavity is formed inside the unloading platform, and a movable groove is formed at the bottom of the inner surface of the cavity. The output end of the motor extends into the interior of the unloading platform and is fixedly connected to a rotating rod.

[0008] The fixed assembly includes a U-shaped frame, a slider, a conveyor belt, a connecting rod, a rack, a gear, a drive roller, and a transmission roller. Sliders are slidably connected to both ends of the movable groove, and the sliders are threadedly connected to the rotating rod. Two sets of threads with opposite directions are respectively provided at the connection points between the outer surface of the rotating rod and the two sets of sliders. A rack is fixedly connected to the upper outer surface of the slider. A gear is provided inside the cavity at positions corresponding to the two sets of racks, and a connecting rod is fixedly connected inside the gear. Drive rollers are fixedly connected to both ends of the connecting rod, with one end of the drive roller fixedly connected to the connecting rod and the other end rotatably connected to the cavity via a rotating shaft. The gear is located above and meshes with the rack. A conveyor belt is drivenly connected to the outer surface of the drive roller, and a transmission roller is drivenly connected to the end of the conveyor belt furthest from the drive roller. A connecting rod is fixedly connected between the two sets of corresponding transmission rollers.

[0009] One end of the transmission roller is fixedly connected to the second connecting rod, and the other end is fixedly connected to a rotating shaft. The rotating shaft passes through the cavity and extends to the outside of the unloading platform. A U-shaped frame is fixedly connected between the two sets of rotating shafts corresponding to the same set of second connecting rods. A buffer assembly is provided on the outer surface of one side of the U-shaped frame away from the rotating shaft. A traction assembly is provided between the cavity and the unloading platform.

[0010] Furthermore, the traction assembly includes gear two, gear three, support rod, gear four, winding rod, limiting block, and traction rope. Gear two is fixedly connected to the outer surface of the rotating rod near the middle, and gear three meshes with the upper outer surface of gear two. Support rod is fixedly connected inside gear three, and one end of support rod is fixedly connected to gear two, while the other end is fixedly connected to the top of the inner surface of the cavity through a bearing. Gear four meshes with the upper outer surface of gear three near both sides.

[0011] Furthermore, a winding rod is fixedly connected inside each of the four gears. The end of the winding rod away from the four gears extends to the outside of the unloading platform and is fixedly connected to a limit block. A traction rope is wound on the outer surface of the winding rod at a position outside the unloading platform. The two ends of the traction rope are fixedly connected to two sets of U-shaped frames respectively. The two ends of the traction rope are fixedly connected to two sets of U-shaped frames located on the same side respectively, and the winding direction of the two ends of the traction rope is the same.

[0012] Furthermore, the buffer assembly includes a mounting groove, a T-shaped plate, a sliding groove, a sliding plate, a fixing rod, a spring, a second spring, and an elastic element. A mounting groove is provided on one side of the outer surface of the U-shaped frame, away from the unloading platform. A spring is installed inside the mounting groove, with one end of the spring fixedly connected to the mounting groove and the other end fixedly connected to the T-shaped plate. A sliding groove is provided on the outer surface of the T-shaped plate, away from the spring. Several sets of fixing rods are fixedly connected inside the sliding groove. Sliding plates are movably connected between the sets of fixing rods near their ends. A second spring is sleeved on the outer surface of the fixing rod between two sets of sliding plates, with both ends of the second spring fixedly connected to the two sets of sliding plates. An elastic element is provided between the two sets of sliding plates.

[0013] Furthermore, the elastic element includes an arc-shaped plate, a connecting plate, a second sliding plate, a third spring, a second fixed rod, a vacuum chamber, a movable chamber, an elastic membrane, and a support plate. A sliding groove is formed on one side of the outer surface of the arc-shaped plate near both ends. Several sets of second fixed rods are fixedly connected inside the sliding groove. Sliding plates are slidably connected between these sets of second fixed rods. A third spring is sleeved on the outer surface of the second fixed rod. One end of the third spring is fixedly connected to the second sliding plate, and the other end is fixedly connected to the second sliding groove. A connecting plate is hinged to one side of the second sliding plate, with one end hinged to the second sliding plate and the other end hinged to the first sliding plate.

[0014] Furthermore, a movable cavity is provided on one side of the arc-shaped plate, and an elastic membrane is fixedly connected to one side of the inner surface of the movable cavity. A support plate is fixedly connected to the inner surface of the elastic membrane. A piston plate is fixedly connected to the outer surface of one side of the support plate. A vacuum cavity is provided at the connection between the inner surface of the movable cavity and the piston plate. The piston plate extends into the interior of the vacuum cavity. A piston plate is movably connected to the inner surface of the vacuum cavity away from the piston plate. A sealing ring is provided at the connection between the piston plate and the piston plate and the vacuum cavity. Support plates are hinged to the outer surfaces of both sides of the piston plate. The ends of the two sets of support plates away from the piston plate are respectively hinged to the two sets of sliding plates.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. In this invention, by setting a fixing component, the rotating rod can be driven by a motor to rotate clockwise, thereby causing the slider to move the rack. The rack meshes with a gear, causing the gear to drive the connecting rod to rotate the drive roller. The conveyor belt drives the transmission roller to rotate under the drive of the drive roller, and the rotating shaft drives the U-shaped frame to rotate towards the container until the U-shaped frame is tightly attached to the outer surfaces of both sides of the container, thereby fixing containers of different specifications.

[0017] 2. In this invention, by setting up a traction assembly, as the rotating rod rotates clockwise, gear two rotates with it. Since gear two meshes with gear three, and gear three meshes with two sets of gear four, gear four drives the winding rod to rotate. At this time, the traction rope on its surface is wound up, so that the traction rope pulls the two sets of U-shaped frames in the tightening direction. The traction rope is a steel cable, thereby improving the strength of the two sets of U-shaped frames in supporting the container and the stability during the container flipping process. When the rotating rod rotates counterclockwise, the rotating rod rotates in the direction of unwinding the traction rope, so that the traction rope adapts to the traction of the two sets of U-shaped frames. Attached Figure Description

[0018] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a combined view of the fixing component and the traction component of the present invention;

[0021] Figure 3 For the present invention Figure 2 Enlarged view of region A;

[0022] Figure 4 For the present invention Figure 2 Enlarged view of region B;

[0023] Figure 5 This is a schematic diagram of the structure of the buffer component of the present invention;

[0024] Figure 6 For the present invention Figure 5 Enlarged view of region C;

[0025] Figure 7 This is a view showing the connection between the connecting rod 2 and the transmission roller of the present invention.

[0026] Reference numerals: 1. Base plate; 2. Mounting block; 3. Mounting hole; 4. Tilting unloading unit; 5. Unloading platform; 6. Fixing component; 61. U-shaped frame; 62. Slider; 63. Conveyor belt; 64. Connecting rod one; 65. Rack; 66. Gear one; 67. Drive roller; 68. Transmission roller; 69. Connecting rod two; 691. Rotating shaft; 7. Motor; 8. Cavity; 81. Movable groove; 82. Rotating rod; 9. Traction component; 91. Gear two; 92. Gear three; 93. Support rod; 94. Gear four; 95. Rewinding rod; 96. Limiting block ; 97. Traction rope; 10. Buffer assembly; 101. Mounting groove; 102. T-shaped plate; 103. Slide groove one; 104. Slide plate one; 105. Fixing rod one; 106. Spring one; 107. Spring two; 108. Elastic element; 109. Arc plate; 110. Connecting plate; 111. Slide plate two; 112. Spring three; 113. Fixing rod two; 114. Vacuum chamber; 115. Movable chamber; 116. Elastic membrane; 117. Support plate; 118. Slide groove two; 119. Piston plate one; 120. Piston plate two; 121. Support plate. Detailed Implementation

[0027] 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.

[0028] Example 1:

[0029] like Figure 1-7 As shown, the present invention proposes a stable unloading platform for grain transportation, comprising a base plate 1, mounting blocks 2, and mounting holes 3. Mounting blocks 2 are fixedly connected to both outer surfaces of the base plate 1, and mounting holes 3 are opened on the upper outer surface of the mounting blocks 2. The base plate 1 is fixed to the ground by bolts passing through the mounting holes 3. A tilting unloading unit 4 is provided on the upper outer surface of the base plate 1, and an unloading platform 5 is provided on the upper outer surface of the tilting unloading unit 4. A fixing component 6 is provided on the outer surface of the unloading platform 5. A motor 7 is provided near the middle of one outer surface of the unloading platform 5, and the output end of the motor 7 extends into the interior of the unloading platform 5. A cavity 8 is opened inside the unloading platform 5, and a movable groove 81 is opened at the bottom of the inner surface of the cavity 8. The output end of the motor 7 extends into the interior of the unloading platform 5 and is fixedly connected to a rotating rod 82. During the unloading process, the container is hoisted onto the surface of the unloading platform 5, and then the motor 7 is started, so that the output shaft of the motor 7 drives the rotating rod 82 to rotate.

[0030] The fixed assembly 6 includes a U-shaped frame 61, a slider 62, a conveyor belt 63, a connecting rod 64, a rack 65, a gear 66, a drive roller 67, and a transmission roller 68. Slider 62s are slidably connected to both ends of the movable groove 81, and the sliders 62 are threadedly connected to the rotating rod 82. Two sets of threads with opposite directions are respectively provided at the connection points between the outer surface of the rotating rod 82 and the two sets of sliders 62. A rack 65 is fixedly connected to the upper outer surface of the slider 62. Gear 66 is provided inside the cavity 8 at positions corresponding to the two sets of racks 65. 6. A connecting rod 64 is fixedly connected inside the gear 66. Both ends of the connecting rod 64 are fixedly connected to drive rollers 67. One end of the drive roller 67 is fixedly connected to the connecting rod 64, and the other end is rotatably connected to the cavity 8 through a rotating shaft. The gear 66 is located above the rack 65 and meshes with it. A conveyor belt 63 is driven to the outer surface of the drive roller 67. A transmission roller 68 is driven to the end of the conveyor belt 63 away from the drive roller 67. A connecting rod 69 is fixedly connected between the two sets of corresponding transmission rollers 68.

[0031] One end of the transmission roller 68 is fixedly connected to the connecting rod 69, and the other end is fixedly connected to the rotating shaft 691. The rotating shaft 691 passes through the cavity 8 and extends to the outside of the unloading platform 5. A U-shaped frame 61 is fixedly connected between the two sets of rotating shafts 691 corresponding to the same set of connecting rods 69. During the clockwise rotation of the rotating rod 82, the two sets of sliders 62 drive the rack 65 to move away from each other. Since the rack 65 meshes with the gear 66, the gear 66 drives the connecting rod 64 to drive the drive roller 67 to rotate. The conveyor belt 63 drives the transmission roller 68 to rotate under the drive of the drive roller 67, and causes the rotating shaft 691 to drive the U-shaped frame 61 to rotate towards the container until the U-shaped frame 61 is tightly attached to the outer surfaces of both sides of the container.

[0032] Example 2:

[0033] like Figure 2-4 As shown, the difference between this embodiment and embodiment 1 is that a traction assembly 9 is provided between the cavity 8 and the unloading platform 5. The traction assembly 9 includes a second gear 91, a third gear 92, a support rod 93, a fourth gear 94, a winding rod 95, a limiting block 96, and a traction rope 97. The second gear 91 is fixedly connected to the outer surface of the rotating rod 82 near the middle, and the third gear 92 is meshed with the upper outer surface of the second gear 91. The support rod 93 is fixedly connected inside the third gear 92, and one end of the support rod 93 is fixedly connected to the second gear 91, and the other end is fixedly connected to the top of the inner surface of the cavity 8 through a bearing. The fourth gear 94 is meshed with the upper outer surface of the third gear 92 near both sides. During the clockwise rotation of the rotating rod 82, the second gear 91 rotates with it. Since the second gear 91 meshes with the third gear 92, and the third gear 92 meshes with the two sets of fourth gears 94, the fourth gear 94 drives the winding rod 95 to rotate.

[0034] Gear 4 94 is internally fixedly connected to a winding rod 95. The end of the winding rod 95 away from gear 4 94 extends to the outside of the unloading platform 5 and is fixedly connected to a limit block 96. A traction rope 97 is wound on the outer surface of the winding rod 95 at the position outside the unloading platform 5. The two ends of the traction rope 97 are fixedly connected to two sets of U-shaped frames 61 respectively. The two ends of the traction rope 97 are fixedly connected to two sets of U-shaped frames 61 located on the same side, and the winding direction of the two ends of the traction rope 97 is the same. When the rotating rod 82 rotates clockwise, the traction rope 97 is wound on the surface of the winding rod 95, so that the traction rope 97 pulls the two sets of U-shaped frames 61 in the tightening direction. The traction rope 97 is a steel cable, thereby improving the strength of the two sets of U-shaped frames 61 in supporting the container and the stability during the container tilting process.

[0035] Example 3:

[0036] like Figure 2 , Figure 5 and Figure 6 As shown, the difference between this embodiment and Embodiments 1 and 2 is that a buffer assembly 10 is provided on one side of the outer surface of the U-shaped frame 61 away from the rotation axis 691. The buffer assembly 10 includes a mounting groove 101, a T-shaped plate 102, a sliding groove 103, a sliding plate 104, a fixing rod 105, a spring 106, a second spring 107, and an elastic element 108. A mounting groove 101 is provided on one side of the outer surface of the U-shaped frame 61 away from the unloading platform 5, and a spring 106 is provided inside the mounting groove 101. One end is fixedly connected to the mounting groove 101, and the other end is fixedly connected to the T-shaped plate 102. The outer surface of the T-shaped plate 102 is provided with a sliding groove 103 on the side away from the spring 106. Several sets of fixing rods 105 are fixedly connected inside the sliding groove 103. Slide plates 104 are movably connected between the several sets of fixing rods 105 near the two ends. A spring 107 is sleeved on the outer surface of the fixing rod 105 at the position between the two sets of slide plates 104. The two ends of the spring 107 are fixedly connected to the two sets of slide plates 104 respectively.

[0037] An elastic element 108 is provided between the two sets of sliding plates 104. The elastic element 108 includes an arc-shaped plate 109, a connecting plate 110, a second sliding plate 111, a third spring 112, a second fixing rod 113, a vacuum chamber 114, a movable chamber 115, an elastic membrane 116, and a support plate 117. A second groove 118 is provided on one side of the outer surface of the arc-shaped plate 109 near both ends. Several sets of second fixing rods 113 are fixedly connected inside the second groove 118. The second sliding plate 111 is slidably connected between the sets of second fixing rods 113. A third spring 112 is sleeved on the outer surface of the second fixing rod 113. One end of the third spring 112 is fixedly connected to the second sliding plate 111, and the other end is fixedly connected to the second groove 118. A connecting plate 110 is hinged to one side of the second sliding plate 111. One end of the connecting plate 110 is hinged to the second sliding plate 111, and the other end is hinged to the first sliding plate 104. The 104 hinge, when the container is tilted to one side by the tipping and unloading unit 4 to dump the grain inside, will have a force that tilts and squeezes the U-shaped frame 61 to one side due to its own weight and the operation of other equipment, and will cause shaking. Therefore, it will repeatedly squeeze the arc plate 109, causing the arc plate 109 to squeeze the connecting plate 110 backward. The two ends of the connecting plate 110 will flip to one side and push the sliding plate 2 111 to one side to stretch the spring 3 112, causing the sliding plate 104 to squeeze the spring 2 107 to one side. During this process, the T-shaped plate 102 squeezes the spring 106 along the mounting groove 101. Therefore, the spring 106, spring 2 107 and spring 3 112 work together to buffer the slight shaking or vibration of the container, reduce its impact force on the U-shaped frame 61, thereby ensuring the service life of the U-shaped frame 61 and reducing the wear on the container.

[0038] Example 4:

[0039] like Figure 5 and Figure 6As shown, the difference between this embodiment and embodiments 1, 2, and 3 is that a movable cavity 115 is provided on one side of the arc-shaped plate 109, and an elastic membrane 116 is fixedly connected to one side of the inner surface of the movable cavity 115. A support plate 117 is fixedly connected to the inner surface of the elastic membrane 116, and a piston plate 119 is fixedly connected to the outer surface of one side of the support plate 117. A vacuum cavity 114 is provided at the connection between the inner surface of the movable cavity 115 and the piston plate 119. The piston plate 119 penetrates into the interior of the vacuum cavity 114. During the process of the container squeezing the arc-shaped plate 109, the elastic membrane 116 contacts the container and, under its squeezing, pushes the piston plate 119 to one side to move inside the vacuum cavity 114. A piston plate 120 is movably connected to the inner surface of the vacuum chamber 114 on the side away from the piston plate 119. A sealing ring is provided at the connection between the piston plate 119 and the piston plate 120 and the vacuum chamber 114. Support plates 121 are hinged to the outer surfaces of both sides of the piston plate 120. The ends of the two sets of support plates 121 away from the piston plate 120 are respectively hinged to the two sets of sliding plates 104. The piston plate 120 is pushed by the vacuum chamber 114 to the side away from the vacuum chamber 114. The support plates 121 flip outward and push the two sets of sliding plates 104 that are moving towards each other to move away from each other, thereby using the buffering force of the vacuum chamber 114 to further enhance the buffering capacity of the device.

[0040] The working principle of this invention is as follows: During the unloading process, the container is hoisted onto the surface of the unloading platform 5, and then the motor 7 is started. The output shaft of the motor 7 drives the rotating rod 82 to rotate clockwise. Since the slider 62 is threadedly connected to the rotating rod 82, the threads on the outer surface of the rotating rod 82 and the connection between the two sets of sliders 62 are in opposite directions, and the slider 62 is slidably connected to the movable groove 81, during the clockwise rotation of the rotating rod 82, the two sets of sliders 62 drive the rack 65 to move away from each other. Since the rack 65 meshes with the gear 66, the gear 66 drives the connecting rod 64 to drive the drive roller 67 to rotate. The conveyor belt 63 drives the transmission roller 68 to rotate under the drive of the drive roller 67, and causes the rotating shaft 691 to drive the U-shaped frame 61 to rotate towards the container until the U-shaped frame 61 is tightly attached to the outer surfaces of both sides of the container. As can be seen from the above steps, when the rotating rod 82 rotates counterclockwise, the two sets of U-shaped frames 61 flip away from the container, thereby fixing containers of different specifications.

[0041] Furthermore, during the clockwise rotation of the rotating rod 82, the second gear 91 rotates accordingly. Since the second gear 91 meshes with the third gear 92, and the third gear 92 meshes with the two sets of fourth gears 94, the fourth gear 94 drives the winding rod 95 to rotate. At this time, the traction rope 97 on its surface is wound up, causing the traction rope 97 to pull the two sets of U-shaped frames 61 in the tightening direction. The traction rope 97 is a steel cable, thereby improving the strength of the two sets of U-shaped frames 61 in supporting the container and the stability of the container during the tilting process. After the container is fixed by the U-shaped frame 61, the tilting and unloading unit 4 is controlled to tilt the container to one side. When the rotating rod 82 rotates counterclockwise, the rotating rod 82 rotates in the direction of unwinding the traction rope 97, so that the traction rope 97 adapts to the traction of the two sets of U-shaped frames 61.

[0042] When the container is tilted to one side by the tipping unloading unit 4 to dump the grain inside, it will tilt and squeeze the U-shaped frame 61 to one side due to its own weight and the operation of other equipment, and will shake. Therefore, it will repeatedly squeeze the arc plate 109, causing the arc plate 109 to squeeze the connecting plate 110 backward. The two ends of the connecting plate 110 will flip to one side and push the sliding plate 111 to one side to stretch the spring 112. This will cause the sliding plate 104 to squeeze the spring 107 to one side. During this process, the T-shaped plate 102 squeezes the spring 106 along the mounting groove 101. Therefore, the spring 106, spring 107 and spring 112 work together to buffer the slight shaking or vibration of the container, reduce the impact force on the U-shaped frame 61, thereby ensuring the service life of the U-shaped frame 61 and reducing the wear on the container.

[0043] Furthermore, during the process of the container squeezing the arc plate 109, the elastic membrane 116 comes into contact with the container and, under its squeezing, pushes the piston plate 119 to one side to move inside the vacuum chamber 114. The piston plate 120, under the action of the vacuum chamber 114, pushes the support plate 121 to the side away from the vacuum chamber 114. The support plate 121 flips outward and pushes the two sets of sliding plates 104, which were moving towards each other, to move away from each other, thereby using the buffering force of the vacuum chamber 114 to further enhance the buffering capacity of the device.

[0044] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the invention or exceed the scope defined in the claims, all of which should fall within the protection scope of the present invention.

[0045] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0046] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A stable unloading platform for grain transportation, comprising a base plate (1), mounting blocks (2), and mounting holes (3), wherein mounting blocks (2) are fixedly connected to both outer surfaces of the base plate (1), and mounting holes (3) are provided on the upper outer surface of the mounting blocks (2), and the base plate (1) is fixed to the ground by bolts passing through the mounting holes (3), characterized in that, The upper outer surface of the base plate (1) is provided with a flipping unloading unit (4), and the upper outer surface of the flipping unloading unit (4) is provided with an unloading platform (5). The outer surface of the unloading platform (5) is provided with a fixing component (6). A motor (7) is provided near the middle of one side of the outer surface of the unloading platform (5), and the output end of the motor (7) extends into the interior of the unloading platform (5). The interior of the unloading platform (5) is provided with a cavity (8), and the bottom of the inner surface of the cavity (8) is provided with a movable groove (81). The output end of the motor (7) extends into the interior of the unloading platform (5) and is fixedly connected with a rotating rod (82). The fixed assembly (6) includes a U-shaped frame (61), a slider (62), a conveyor belt (63), a connecting rod (64), a rack (65), a gear (66), a drive roller (67), and a transmission roller (68). Sliders (62) are slidably connected to both ends of the movable groove (81), and the sliders (62) are threadedly connected to the rotating rod (82). Two sets of threads with opposite directions are respectively provided at the connection points between the outer surface of the rotating rod (82) and the two sets of sliders (62). A rack (65) is fixedly connected to the upper outer surface of the slider (62). A toothed tooth is provided inside the cavity (8) at a position corresponding to the two sets of racks (65). Gear 1 (66) and gear 1 (66) are fixedly connected to a connecting rod 1 (64). Both ends of the connecting rod 1 (64) are fixedly connected to a drive roller (67). One end of the drive roller (67) is fixedly connected to the connecting rod 1 (64), and the other end is rotatably connected to the cavity (8) through a rotating shaft. Gear 1 (66) is located above the rack (65) and meshes with it. The outer surface of the drive roller (67) is connected to a conveyor belt (63). The end of the conveyor belt (63) away from the drive roller (67) is connected to a transmission roller (68). A connecting rod 2 (69) is fixedly connected between two sets of corresponding transmission rollers (68). One end of the transmission roller (68) is fixedly connected to the second connecting rod (69), and the other end is fixedly connected to a rotating shaft (691). The rotating shaft (691) passes through the cavity (8) and extends to the outside of the unloading platform (5). A U-shaped frame (61) is fixedly connected between the two sets of rotating shafts (691) corresponding to the same set of second connecting rods (69). A buffer assembly (10) is provided on one side of the outer surface of the U-shaped frame (61) away from the rotating shaft (691). A traction assembly (9) is provided between the cavity (8) and the unloading platform (5).

2. The stable rear unloading platform for grain transportation according to claim 1, characterized in that, The traction assembly (9) includes gear 2 (91), gear 3 (92), support rod (93), gear 4 (94), winding rod (95), limiting block (96), and traction rope (97). Gear 2 (91) is fixedly connected to the outer surface of the rotating rod (82) near the middle, and gear 3 (92) meshes with the upper outer surface of gear 2 (91). Support rod (93) is fixedly connected inside gear 3 (92), and one end of support rod (93) is fixedly connected to gear 2 (91), and the other end is fixedly connected to the top of the inner surface of cavity (8) through a bearing. Gear 4 (94) meshes with the upper outer surface of gear 3 (92) near both sides.

3. The stable rear unloading platform for grain transportation according to claim 2, characterized in that, A winding rod (95) is fixedly connected inside each of the four gears (94). The end of the winding rod (95) away from the four gears (94) extends to the outside of the unloading platform (5) and is fixedly connected to a limit block (96). A traction rope (97) is wound on the outer surface of the winding rod (95) at the position outside the unloading platform (5). The two ends of the traction rope (97) are fixedly connected to two sets of U-shaped frames (61) respectively. The two ends of the traction rope (97) are fixedly connected to two sets of U-shaped frames (61) located on the same side respectively, and the winding direction of the two ends of the traction rope (97) is the same.

4. A stable rear unloading platform for grain transportation according to claim 3, characterized in that, The buffer assembly (10) includes a mounting groove (101), a T-shaped plate (102), a slide rail (103), a sliding plate (104), a fixing rod (105), a spring (106), a spring (107), and an elastic element (108). The U-shaped frame (61) has a mounting groove (101) on one side of its outer surface away from the unloading platform (5). A spring (106) is installed inside the mounting groove (101), with one end of the spring (106) fixedly connected to the mounting groove (101) and the other end fixedly connected to the T-shaped plate (102). A groove (103) is provided on the outer surface of 102 away from the spring (106), and a number of fixed rods (105) are fixedly connected inside the groove (103). Slide plates (104) are movably connected between the fixed rods (105) near their ends. A spring (107) is sleeved on the outer surface of the fixed rod (105) between the two slide plates (104), and the two ends of the spring (107) are fixedly connected to the two slide plates (104) respectively. An elastic element (108) is provided between the two slide plates (104).

5. A stable rear unloading platform for grain transportation according to claim 4, characterized in that, The elastic element (108) includes an arc-shaped plate (109), a connecting plate (110), a sliding plate (111), a spring (112), a fixing rod (113), a vacuum chamber (114), a movable chamber (115), an elastic membrane (116), and a support plate (117). The outer surface of one side of the arc-shaped plate (109) near both ends is provided with sliding grooves (118), and several sets of fixing rods (113) are fixedly connected inside the sliding grooves (118). A sliding plate (111) is slidably connected between the two fixed rods (113) of the dry assembly, and a spring (112) is sleeved on the outer surface of the two fixed rods (113). One end of the spring (112) is fixedly connected to the sliding plate (111), and the other end is fixedly connected to the sliding groove (118). A connecting plate (110) is hinged to one side of the sliding plate (111), and one end of the connecting plate (110) is hinged to the sliding plate (111), and the other end is hinged to the sliding plate (104).

6. A stable rear unloading platform for grain transportation according to claim 5, characterized in that, A movable cavity (115) is provided on one side of the arc-shaped plate (109), and an elastic membrane (116) is fixedly connected to one side of the inner surface of the movable cavity (115). A support plate (117) is fixedly connected to the inner surface of the elastic membrane (116), and a piston plate (119) is fixedly connected to the outer surface of one side of the support plate (117). A vacuum cavity (114) is provided at the connection between the inner surface of the movable cavity (115) and the piston plate (119). The piston plate (119) extends through to... Inside the vacuum chamber (114), and on the inner surface of the vacuum chamber (114) away from the piston plate one (119), a piston plate two (120) is movably connected. A sealing ring is provided at the connection between the piston plate one (119) and the piston plate two (120) and the vacuum chamber (114). Support plates (121) are hinged to the outer surfaces of both sides of the piston plate two (120). The ends of the two sets of support plates (121) away from the piston plate two (120) are respectively hinged to the two sets of sliding plates one (104).

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