Unloading platform and unloading method

Abstract

Provided in the present invention are an unloading platform and an unloading method. The unloading platform comprises: a platform portion; a tilting frame for carrying a container, wherein the tilting frame has a first operating state, in which a first side of the tilting frame is hinged to the platform portion, and a second side of the tilting frame has a first initial position for aligning with the platform portion and a first tilted position for rising relative to the platform portion; lifting members disposed between the platform portion and the tilting frame, wherein the lifting members drive the tilting frame to switch between the first initial position and the first tilted position; and first limiting frames disposed on a first side portion of the platform portion, wherein when the tilting frame is in the tilted position, the tilting frame or the container is in limiting fit with the first limiting frames. The technical solution of the present application effectively solves the problem in the related art of a low unloading efficiency due to unloading of a synthetic resin container occurring on a vehicle body.

Description

Unloading platform and unloading method

[0001] Related applications

[0002] This application claims priority to the Chinese patent application filed with the Patent Office of China on December 15, 2023, with application number CN202311738009.8 and invention name “Unloading Platform and Unloading Method”, the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present invention relates to the technical field of container unloading, and in particular to an unloading platform and an unloading method. Background Art

[0004] Synthetic resin bulk cargo can be used in packaging and manufacturing of daily necessities. It is a petrochemical product with high economic value. With the development of society and the improvement of people's living standards, the demand for synthetic resin products has gradually increased. In the current railway transportation of synthetic resin, a large amount of bagged boxcars and ton bag general boxes are used for transportation. A large amount of manpower is used to carry goods during transportation, which results in high transportation costs. In ton bag transportation, the ton bags are not used in a standardized manner, resulting in large cargo losses.

[0005] At present, in order to safely transport synthetic resins, synthetic resin containers are used. Synthetic resin containers are containers that can transport synthetic resin bulk cargo. They have the characteristics of light weight, large volume, top loading and side unloading of cargo, and can be integrated with the container after being installed on a road transport vehicle with a hydraulic lifting frame. They can be used for large-scale transportation and storage of synthetic resin bulk cargo, and can realize the safe, clean and efficient transportation of synthetic resin bulk cargo, with low comprehensive transportation costs and high economic benefits.

[0006] In the related art, when unloading synthetic resin containers, the unloading is carried out on the vehicle body. Due to the limitation of the user-side site, only one vehicle can be parked and unloaded at a time, which will result in a slower turnover speed of the vehicle and lower unloading efficiency.

[0007] Summary of the Invention

[0008] The main purpose of the present invention is to provide an unloading platform and an unloading method to solve the problem in the related art that synthetic resin containers are unloaded on a vehicle body, resulting in low unloading efficiency.

[0009] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, there is provided an unloading platform, comprising: a platform portion; a turning frame for carrying a container, the turning frame having a first working state, wherein when the turning frame is in the first working state, a first side of the turning frame is hingedly connected to the platform portion, and a second side of the turning frame has a first initial position in contact with the platform portion and a first turning position raised relative to the platform portion; a lifting member, arranged between the platform portion and the turning frame, the lifting member drives the turning frame to switch between the first initial position and the first turning position; a first limiting frame, arranged on a first side portion of the platform portion, wherein when the turning frame is in the first turning position, the turning frame or the container is limitedly matched with the first limiting frame.

[0010] Furthermore, a stop slope is provided on one side of the first limiting frame facing the flip frame, and the horizontal distance between the stop slope and the platform portion gradually decreases from top to bottom.

[0011] Furthermore, the unloading platform also includes a second limit frame, which is arranged on the second side of the platform part. The flip frame has a second working state. When the flip frame is in the second working state, the second side of the flip frame is hingedly connected to the platform part. The first side of the flip frame has a second initial position that is in contact with the platform part and a second flip position that is raised relative to the platform part. The lifting member drives the flip frame to switch between the second initial position and the second flip position.

[0012] Furthermore, the unloading platform also includes a locking structure, which is arranged between the platform part and the second side of the flip frame. The locking structure has a locked state and an unlocked state. When the locking structure is in the unlocked state, the lifting member can drive the flip frame to move from the first initial position to the first flipping position.

[0013] Furthermore, the flip frame includes an outer frame and a first main beam and a second main beam connected to the outer frame. The outer frame includes a first end beam, a first side beam, a second end beam and a second side beam arranged in sequence. The cross-sectional areas of the first end beam, the second end beam, the first side beam and the second side beam are equal. The first main beam and the second main beam are arranged and spaced apart along the length direction of the outer frame. The cross-sectional areas of the first main beam and the second main beam are equal, and the cross-sectional area of ​​the first main beam is smaller than the cross-sectional area of ​​the first end beam.

[0014] Furthermore, the platform portion includes a platform body and a mounting frame arranged on the platform body, and the flip frame is hingedly connected to the mounting frame.

[0015] Furthermore, the platform body includes a third end beam and a fourth end beam arranged at intervals, and a third side beam and a fourth side beam arranged between the third end beam and the fourth end beam. The third side beam and the fourth side beam have the same shape, the height of the first end of the third side beam is greater than the height of the second end of the third side beam, and both ends of the third end beam extend out of the third side beam and the fourth side beam. The platform body also includes a plurality of support beams, and the plurality of support beams are arranged at intervals, and the two ends of each support beam extend out of the third side beam and the fourth side beam respectively.

[0016] Furthermore, the platform body also includes a plurality of reinforcing beams, which are arranged at intervals between the third side beam and the fourth side beam, and / or the platform body also includes a plurality of connecting rods, and at least one connecting rod is provided between the third end beam and the third side beam, between the third end beam and the fourth side beam, between the fourth end beam and the third side beam, between the fourth end beam and the fourth side beam, between the first end of each support beam and the third side beam, and between the second end of each support beam and the fourth side beam.

[0017] Furthermore, the platform portion further includes a walking mechanism, which is arranged below the platform body.

[0018] According to another aspect of the present application, a unloading method is provided, which is implemented through an unloading platform. The unloading method includes: maintaining the flip rack in the initial position for a first preset time; after the first preset time, moving the flip rack from the first initial position to the first flip position; wherein the unloading platform is the above-mentioned unloading platform.

[0019] Furthermore, the step of moving the turning frame from the first initial position to the first turning position includes: controlling a first preset time length according to a pressure signal detected by a pressure sensor; gradually tilting the turning frame within a second preset time length and reaching the first turning position; when the container reaches the first turning position, moving the turning frame from the first turning position to the first initial position within a third preset time length.

[0020] Furthermore, the step of moving the flip frame from the first initial position to the first flip position includes: controlling the flip frame to reach a first tilted position tilted at a first angle relative to the vertical plane and maintaining it for a fourth preset time; after the flip frame maintains the fourth preset time, controlling the flip frame to reach a second tilted position tilted at a second angle relative to the vertical plane and maintaining it for a fifth preset time, wherein the second angle is greater than the first angle.

[0021] According to the technical solution of the present application, a tilting frame is configured to carry containers. The tilting frame has a first operating state. When the tilting frame is in the first operating state, a first side of the tilting frame is hingedly connected to the platform portion. The tilting frame has a first initial position and a first tilting position. When the tilting frame is in the first initial position, a second side of the tilting frame is in contact with the platform portion. When the tilting frame is in the first tilting position, the second side of the tilting frame is raised relative to the platform portion. A lifting member is disposed between the platform portion and the tilting frame, and the lifting member is capable of driving the tilting frame to switch between the first initial position and the first tilting position. A first limiting frame is disposed on the first side of the platform portion. When the tilting frame is in the first tilting position, the tilting frame or the container is locked in position with the first limiting frame. With the above arrangement, the tilting frame can be used to carry containers, i.e., containers can be placed on the tilting frame, eliminating the need for containers to be unloaded on the vehicle body, thereby increasing vehicle turnover and improving unloading efficiency. Furthermore, because the tilting frame can switch between the first initial position and the first tilting position, the container can be raised on the tilting frame, thereby enabling rapid container unloading. At the same time, the first limiting frame can limit the position of the container to prevent it from falling from the turning frame during unloading. Therefore, the technical solution of the present application effectively solves the problem of low unloading efficiency caused by unloading synthetic resin containers on the vehicle body in the related art. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0023] FIG1 shows a schematic perspective structural diagram of an embodiment of an unloading platform according to the present invention;

[0024] FIG2 shows a schematic side view of the unloading platform of FIG1 ;

[0025] FIG3 is a schematic diagram showing the three-dimensional structure of the turning frame of the unloading platform of FIG1 in the first turning position;

[0026] FIG4 shows a partial enlarged view of point A of the unloading platform in FIG3 ;

[0027] FIG5 shows a schematic side view of the unloading platform of FIG3 ;

[0028] FIG6 is a schematic diagram showing the three-dimensional structure of the turning frame of the unloading platform of FIG1 in the first initial position;

[0029] FIG7 shows a partial enlarged view of point B of the unloading platform in FIG6 ;

[0030] FIG8 shows a schematic front view of the unloading platform of FIG6 ;

[0031] FIG9 shows a schematic side view of the unloading platform of FIG6 ;

[0032] FIG10 shows a schematic perspective structural diagram of the turnover frame of the unloading platform of FIG1 ;

[0033] FIG11 is a schematic diagram showing the three-dimensional structure of the platform portion of the unloading platform of FIG1 ;

[0034] FIG12 shows a schematic top view of the platform portion of FIG11 ;

[0035] FIG. 13 shows a schematic front view of the platform portion of FIG. 11 .

[0036] Among them, the above-mentioned drawings include the following figure marks: 1. container; 10. platform part; 11. platform body; 111. third end beam; 112. fourth end beam; 113. third side beam; 114. fourth side beam; 115. support beam; 116. reinforcement beam; 117. connecting rod; 12. mounting frame; 13. walking mechanism; 20. turning frame; 21. outer frame; 211. first end beam; 212. first side beam; 213. second end beam; 214. second side beam; 22. first main beam; 23. second main beam; 24. connecting beam; 25. positioning pin; 30. lifting member; 40. first limit frame; 41. stop slope; 50. second limit frame; 60. locking structure; 61. locking seat; 611. stop column; 62. connecting seat; 621. connecting frame; 622. stop pin. DETAILED DESCRIPTION

[0037] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0038] As shown in Figures 1 to 9, in this embodiment, the unloading platform includes: a platform portion 10, a turning frame 20, a lifting member 30, and a first limiting frame 40. The turning frame 20 is used to carry the container 1. The turning frame 20 has a first working state. When the turning frame 20 is in the first working state, the first side of the turning frame 20 is hingedly connected to the platform portion 10, and the second side of the turning frame 20 has a first initial position in contact with the platform portion 10 and a first turning position raised relative to the platform portion 10. The lifting member 30 is arranged between the platform portion 10 and the turning frame 20. The lifting member 30 drives the turning frame 20 to switch between the first initial position and the first turning position. The first limiting frame 40 is arranged on the first side of the platform portion 10. When the turning frame 20 is in the first turning position, the turning frame 20 or the container 1 is limitedly engaged with the first limiting frame 40.

[0039] Applying the technical solution of this embodiment, the tilting frame 20 is used to carry the container 1. The tilting frame 20 has a first working state. When the tilting frame 20 is in the first working state, the first side of the tilting frame 20 is hingedly connected to the platform portion 10. The tilting frame 20 has a first initial position and a first tilting position. When the tilting frame 20 is in the first initial position, the second side of the tilting frame 20 is in contact with the platform portion 10. When the tilting frame 20 is in the first tilting position, the second side of the tilting frame 20 is raised relative to the platform portion 10. A lifting member 30 is disposed between the platform portion 10 and the tilting frame 20. The lifting member 30 can drive the tilting frame 20 to switch between the first initial position and the first tilting position. A first limiting frame 40 is disposed on the first side of the platform portion 10. When the tilting frame 20 is in the first tilting position, the tilting frame 20 or the container 1 is limitedly engaged with the first limiting frame 40. Through the above-described arrangement, the tilting frame 20 can be used to support the container 1. Specifically, the container 1 can be placed on the tilting frame 20, eliminating the need to unload the container 1 from the vehicle body. This improves vehicle turnover and unloading efficiency. Furthermore, because the tilting frame 20 can be switched between a first initial position and a first tilting position, the container 1 can be raised on the tilting frame 20, enabling rapid unloading of the container 1. Furthermore, the first limiting frame 40 can limit the position of the container 1, preventing it from falling from the tilting frame during unloading. Therefore, the technical solution of this embodiment effectively solves the problem of low unloading efficiency caused by unloading synthetic resin containers from the vehicle body in related technologies.

[0040] It should be noted that both sides of the flip frame 20 are capable of flipping relative to the platform portion 10. A first connecting seat is provided on the first side of the flip frame 20, a second connecting seat is provided on the second side of the flip frame 20, a third connecting seat is provided on the first side of the platform portion 10, and a fourth connecting seat is provided on the second side of the platform portion 10. When the first side of the flip frame 20 is hinged to the platform portion 10, the first and third connecting seats are connected by a detachable pin, and the second and fourth connecting seats are not connected. When the second side of the flip frame 20 is hinged to the platform portion 10, the second and fourth connecting seats are connected by a pin, and the first and third connecting seats are not connected.

[0041] As shown in Figures 1, 2, 3, 5, 6, and 9, in this embodiment, a stop slope 41 is provided on the side of the first limiting frame 40 facing the tilting frame 20. The horizontal distance between the stop slope 41 and the platform portion 10 gradually decreases from top to bottom. The provision of the stop slope 41 can effectively stop the container 1 or the tilting frame 20, thereby effectively limiting the position of the container 1 and further stabilizing the tilted position of the container 1.

[0042] Specifically, the included angle between the stop slope 41 and the vertical plane is between 20° and 50°. Preferably, the included angle between the stop slope 41 and the vertical plane is 35°.

[0043] As shown in Figures 1, 2, 3, 5, 6, and 9, in this embodiment, the unloading platform further includes a second limiting frame 50, which is disposed on the second side of the platform portion 10. The tilting frame 20 has a second operating state. When the tilting frame 20 is in the second operating state, the second side of the tilting frame 20 is hingedly connected to the platform portion 10, and the first side of the tilting frame 20 has a second initial position in contact with the platform portion 10 and a second tilting position raised relative to the platform portion 10. The lifting member 30 drives the tilting frame 20 to switch between the second initial position and the second tilting position. With the above arrangement, the container 1 can be mounted on the tilting frame 20 in any direction, and unloading can be achieved on both sides of the unloading platform, which effectively improves the convenience of unloading.

[0044] Specifically, in this embodiment, the first limiting frame 40 and the second limiting frame 50 are both detachably connected to the platform portion 10 .

[0045] As shown in Figures 4 to 7, in this embodiment, the unloading platform further includes a locking structure 60, which is disposed between the platform portion 10 and the second side of the flip frame 20. The locking structure 60 has a locked state and an unlocked state. When the locking structure 60 is in the unlocked state, the lifting member 30 can drive the flip frame 20 from the first initial position to the first flip position. The provision of the locking structure 60 can effectively lock the flip frame 20 and the platform portion 10 together. When the flip frame 20 is not in use, the flip frame 20 and the platform portion 10 are locked together, thereby preventing the flip frame 20 from being accidentally opened, thereby making the overall structure safer.

[0046] Specifically, the locking structure 60 includes a locking seat 61 and a connecting seat 62. The locking seat 61 is arranged on the platform part 10, and the connecting seat 62 is arranged on the flip frame 20. The locking seat 61 includes a stop column 611, and the connecting seat 62 includes a connecting frame 621 and a stop pin 622. The stop pin 622 is detachably connected to the connecting frame 621. When the locking structure 60 is in a locked state, the stop pin 622 is located below the stop column 611.

[0047] As shown in Figures 3 and 10, in this embodiment, the tilting frame 20 includes an outer frame 21 and a first main beam 22 and a second main beam 23 connected to the outer frame 21. The outer frame 21 includes a first end beam 211, a first side beam 212, a second end beam 213, and a second side beam 214, which are arranged in sequence. The cross-sectional areas of the first end beam 211, the second end beam 213, the first side beam 212, and the second side beam 214 are all equal. The first main beam 22 and the second main beam 23 are arranged and spaced apart along the length of the outer frame 21. The cross-sectional areas of the first main beam 22 and the second main beam 23 are equal, and the cross-sectional area of ​​the first main beam 22 is smaller than that of the first end beam 211. The above arrangement can effectively improve the structural strength of the tilting frame 20, thereby enabling the tilting frame 20 to carry a relatively heavy container 1.

[0048] Specifically, the tilting frame 20 further includes a plurality of connecting beams 24, which are spaced apart and connected between the first main beam 22 and the second main beam 23. The connecting beams 24 form a plurality of connection groups, each of which includes two connection beams 24 spaced apart. The distance between the two connection beams 24 in each connection group is smaller than the distance between two adjacent connection groups. The protruding end of the lifting member 30 is connected to the connection group. Preferably, the lifting member is a hydraulic cylinder.

[0049] As shown in Figures 3 and 10, in this embodiment, a plurality of positioning pins 25 are provided on the top surface of the turning frame 20, and at least one positioning pin 25 is provided at the corner of each turning frame 20. The positioning pins can be inserted into the container, thereby making the connection between the container and the turning frame more stable.

[0050] As shown in Figures 11 to 13, in this embodiment, the platform portion 10 includes a platform body 11 and a mounting frame 12 disposed on the platform body 11, and the flip frame 20 is hingedly connected to the mounting frame 12. The above arrangement can effectively improve the structural strength of the platform portion 10.

[0051] As shown in Figures 11 to 13, in this embodiment, the platform body 11 includes a third end beam 111 and a fourth end beam 112 that are spaced apart, and a third side beam 113 and a fourth side beam 114 that are disposed between the third end beam 111 and the fourth end beam 112. The third side beam 113 and the fourth side beam 114 have the same shape, the height of the first end of the third side beam 113 is greater than the height of the second end of the third side beam 113, and the ends of the third end beam 111 extend from the third side beam 113 and the fourth side beam 114. The platform body 11 also includes a plurality of support beams 115 that are spaced apart, and the ends of each support beam 115 extend from the third side beam 113 and the fourth side beam 114, respectively. The above arrangement can improve the structural strength.

[0052] As shown in Figures 11 to 13, in this embodiment, the platform body 11 further includes a plurality of reinforcing beams 116, which are arranged at intervals between the third side beam 113 and the fourth side beam 114. The platform body 11 further includes a plurality of connecting rods 117, with at least one connecting rod 117 being provided between the third end beam 111 and the third side beam 113, between the third end beam 111 and the fourth side beam 114, between the fourth end beam 112 and the third side beam 113, between the fourth end beam 112 and the fourth side beam 114, between the first end of each support beam 115 and the third side beam 113, and between the second end of each support beam 115 and the fourth side beam 114. The provision of the connecting rods 117 can further enhance the structural strength of the platform body 11.

[0053] As shown in Figure 11, in this embodiment, the platform portion 10 further includes a walking mechanism 13, which is disposed below the platform body 11. The provision of the walking mechanism 13 enables the platform portion 10 to be movable, thereby changing the position of the unloading platform and improving the versatility of the unloading platform.

[0054] According to another aspect of the present application, a method for unloading cargo is provided, which is implemented by an unloading platform. The unloading method of this embodiment includes:

[0055] Maintaining the turning frame 20 at the initial position for a first preset time;

[0056] After a first preset time has passed, the turning frame 20 is moved from the first initial position to the first turning position;

[0057] Among them, the unloading platform is the unloading platform mentioned above.

[0058] The above arrangement can effectively realize the unloading of the container and improve the unloading efficiency.

[0059] The steps of moving the turning frame 20 from the first initial position to the first turning position include: controlling a first preset time length according to a pressure signal detected by a pressure sensor; gradually tilting the turning frame 20 within a second preset time length and reaching the first turning position; when the container 1 reaches the first turning position, moving the turning frame 20 from the first turning position to the first initial position within a third preset time length.

[0060] Through the above arrangement, the pressure sensor detects the real-time pressure, and when the ratio of the real-time pressure to the fully loaded weight of the container is between 0.6 and 0.8, the lifting member is activated, and during the gradual lifting process, the unloading can be effectively achieved.

[0061] Specifically, when the ratio of the real-time weight of the container 1 to the total weight of the container 1 is greater than 0.55, the container 1 tilts at a first speed; when the ratio of the real-time weight of the container 1 to the total weight of the container 1 is greater than or equal to 0.3 and less than or equal to 0.55, the container 1 flips at a second speed; when the ratio of the real-time weight of the container 1 to the total weight of the container 1 is less than 0.3, the container 1 flips at a third speed, wherein the first speed is less than the second speed, and the third speed is less than the second speed.

[0062] The first speed, the second speed and the third speed are all between 0.75° / min and 1.25° / min.

[0063] The step of moving the flip frame 20 from the initial position to the first flip position includes: controlling the flip frame 20 to reach the first tilted position at a first angle relative to the vertical plane and maintaining it for a fourth preset time; after the flip frame 20 maintains the fourth preset time, controlling the flip frame 20 to reach the second tilted position at a second angle relative to the vertical plane and maintaining it for a fifth preset time, wherein the second angle is greater than the first angle.

[0064] Through the above-mentioned setting, when the container 1 reaches the first tilted position, the unloading speed is faster, and after the fourth preset time, the unloading speed at the first tilted position slows down, and it tilts again to the second angle and reaches the second tilted position, which can speed up the unloading speed again, thereby improving the unloading efficiency, and after maintaining the fifth preset time, the goods can be fully unloaded.

[0065] The aforementioned arrangement of the first angle being smaller than the second angle facilitates the movement of the container. Specifically, when the container is tilted at the first angle, the weight of the cargo inside is relatively large. A larger angle of movement at once would place greater demands on the lifting member 30. However, a smaller angle of movement at once eliminates the need for a greater lifting force from the lifting member 30. After maintaining the first tilted position for a fourth predetermined period, a significant amount of cargo has flowed out of the container 1, reducing its weight. Continuing to tilt at the second angle makes the container 1 more easily tiltable. This arrangement not only improves unloading efficiency but also eliminates the need for a greater lifting force from the lifting member 30.

[0066] After the step of controlling the turning frame 20 to reach the second inclined position at the second angle relative to the vertical plane and maintaining the position for the fifth preset time, the method further includes:

[0067] After the turning frame 20 maintains the fifth preset time period, the turning frame 20 is controlled to move to the third inclined position inclined at a third angle relative to the second inclined position and maintain the position for a sixth preset time period.

[0068] The above steps can further unloading, that is, after the container 1 maintains the fourth preset time at the first tilted position, the fifth preset time at the second tilted position, and the sixth preset time at the third tilted position, all the goods can be unloaded, and the above arrangement can make the tilting of the container 1 easier, that is, when the container 1 is tilted at the first angle, the container 1 is full of goods, that is, the weight of the container 1 is large, so when the container 1 moves from the vertical state to the first tilted position, the movement of the container 1 is easier, and after maintaining the first preset time, the goods in the container 1 flow out better, which makes it easier for the container 1 to tilt again to the second angle, and after maintaining the second preset time, most of the goods flow out. When tilted to the third angle and maintained for the third preset time, all the goods in the container 1 can flow out, and then the goods are completely unloaded.

[0069] The third angle is greater than the second angle, and the third preset time is greater than the second preset time. This arrangement allows for cleaner unloading. Specifically, the third angle is greater than the second angle, and the second angle is greater than the first angle, meaning that three movements are performed, with each movement increasing in angle. This makes each movement of the container 1 easier.

[0070] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A loading platform, characterized in that: include: Platform (10); A turning frame (20) for carrying a container (1), the turning frame (20) having a first working state, when the turning frame (20) is in the first working state, a first side of the turning frame (20) is hingedly connected to the platform portion (10), and a second side of the turning frame (20) has a first initial position in contact with the platform portion (10) and a first turning position raised relative to the platform portion (10); A lifting member (30) is arranged between the platform portion (10) and the flip frame (20), and the lifting member (30) drives the flip frame (20) to switch between the first initial position and the first flip position; A first limiting frame (40) is arranged on a first side portion of the platform portion (10); when the turning frame (20) is in the first turning position, the turning frame (20) or the container (1) is in limiting cooperation with the first limiting frame (40).

2. The unloading platform according to claim 1, characterized in that: A stop slope (41) is provided on one side of the first limiting frame (40) facing the flip frame (20), and the horizontal distance between the stop slope (41) and the platform portion (10) gradually decreases from top to bottom.

3. The unloading platform according to claim 1, characterized in that: The unloading platform further comprises a second limiting frame (50), wherein the second limiting frame (50) is arranged on a second side of the platform portion (10), and the flip frame (20) has a second working state. When the flip frame (20) is in the second working state, the second side of the flip frame (20) is hingedly connected to the platform portion (10), and the first side of the flip frame (20) has a second initial position in contact with the platform portion (10) and a second flip position raised relative to the platform portion (10), and the lifting member (30) drives the flip frame (20) to switch between the second initial position and the second flip position.

4. The unloading platform according to claim 1, characterized in that: The unloading platform further comprises a locking structure (60), wherein the locking structure (60) is arranged between the platform portion (10) and the second side of the flip frame (20), and the locking structure (60) has a locking state and an unlocking state. When the locking structure (60) is in the unlocking state, the lifting member (30) can drive the flip frame (20) to move from the first initial position to the first flipping position.

5. The unloading platform according to claim 1, characterized in that: The turning frame (20) comprises an outer frame (21) and a first main beam (22) and a second main beam (23) connected inside the outer frame (21); the outer frame (21) comprises a first end beam (211), a first side beam (212), a second end beam (213) and a second side beam (214) which are arranged in sequence; the cross-sectional areas of the first end beam (211), the second end beam (213), the first side beam (212) and the second side beam (214) are all equal; the first main beam (22) and the second main beam (23) are arranged along the length direction of the outer frame (21) and are spaced apart; the cross-sectional areas of the first main beam (22) and the second main beam (23) are equal; and the cross-sectional area of ​​the first main beam (22) is smaller than the cross-sectional area of ​​the first end beam (211).

6. The unloading platform according to claim 1, characterized in that: The platform part (10) comprises a platform body (11) and a mounting frame (12) arranged on the platform body (11), and the flip frame (20) is hingedly connected to the mounting frame (12).

7. The unloading platform according to claim 6, characterized in that: The platform body (11) comprises a third end beam (111) and a fourth end beam (112) which are arranged at intervals, and a third side beam (113) and a fourth side beam (114) which are arranged between the third end beam (111) and the fourth end beam (112); the third side beam (113) and the fourth side beam (114) have the same shape; the height of the first end of the third side beam (113) is greater than the height of the second end of the third side beam (113); the two ends of the third end beam (111) extend out of the third side beam (113) and the fourth side beam (114); the platform body (11) further comprises a plurality of support beams (115); the plurality of support beams (115) are arranged at intervals, and the two ends of each support beam (115) extend out of the third side beam (113) and the fourth side beam (114), respectively.

8. The unloading platform according to claim 7, characterized in that: The platform body (11) further includes a plurality of reinforcing beams (116), which are arranged at intervals between the third side beam (113) and the fourth side beam (114), and / or the platform body (11) further includes a plurality of connecting rods (117), and at least one connecting rod (117) is arranged between the third end beam (111) and the third side beam (113), between the third end beam (111) and the fourth side beam (114), between the fourth end beam (112) and the third side beam (113), between the fourth end beam (112) and the fourth side beam (114), between the first end of each support beam (115) and the third side beam (113), and between the second end of each support beam (115) and the fourth side beam (114).

9. The unloading platform according to claim 6, characterized in that: The platform part (10) further comprises a walking mechanism (13), and the walking mechanism (13) is arranged below the platform body (11).

10. A method of unloading, implemented by an unloading platform, characterized in that: The unloading method comprises: Keeping the turning frame (20) at the initial position for a first preset time period; After the first preset time has passed, the turning frame (20) is moved from the first initial position to a first turning position; Wherein, the unloading platform is the unloading platform according to any one of claims 1 to 9.

11. The unloading method according to claim 10, characterized in that: The step of moving the turning frame (20) from the first initial position to the first turning position comprises: controlling the first preset time duration according to a pressure signal detected by a pressure sensor; gradually tilting the turning frame (20) within a second preset time period and reaching the first turning position; When the container (1) reaches the first overturning position, the overturning frame (20) is moved from the first overturning position to the first initial position within a third preset time period.

12. The unloading method according to claim 10, characterized in that: The step of moving the turning frame (20) from the first initial position to the first turning position comprises: Controlling the turning frame (20) to reach a first inclined position at a first angle relative to a vertical plane, and maintaining the position for a fourth preset time period; After the turning frame (20) maintains the fourth preset time length, the turning frame (20) is controlled to reach a second inclined position inclined at a second angle relative to the vertical plane and maintained for a fifth preset time length, wherein the second angle is greater than the first angle.

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