Full-automatic container interlocking mechanism

Abstract

The present application relates to a kind of full-automatic container interlocking mechanism, including shell, longitudinal coupling device and transverse coupling device;Shell can be entered into upper layer container corner fitting bottom hole by rotating;Longitudinal coupling device includes main shaft and engagement component, main shaft passes through the middle of shell, the guide part of engagement component is used for the alignment of the top hole of lower layer container corner fitting, and the helical path provided with in the top hole of lower layer container corner fitting is respectively relied on the two helices of its core surface and is screwed into or out, realizes the coupling or separation of with lower layer container;Transverse coupling device includes guide disc, crank link mechanism and lock piece;Guide disc is sleeved on main shaft, and it is driven by friction force between main shaft;Guide disc moves with the movement of longitudinal coupling device, and under the action of crank link mechanism, lock piece is driven to realize the coupling or separation of with side container simultaneously.The present application can realize full-automatic and simultaneously coupling or releasing longitudinal two containers and transverse two containers.

Description

Technical Field

[0001] This invention relates to the field of container transportation technology, and specifically to a fully automatic container interlocking mechanism. Background Technology

[0002] Container ships have grown from 3,000 TEU in the 1980s to 22,000 TEU today. Ultra-large container ships have a large cargo capacity, are less affected by market freight rates, and have much lower transportation costs than other types of ships and ordinary container ships, which is why they are widely used in the modern shipping industry.

[0003] The standardized dimensions and robust structure of shipping containers allow multiple containers to be stacked one on top of the other, making them easy to load and unload. This design provides excellent protection for the goods being transported, as well as during loading and unloading; these containers are commonly referred to as International Organization for Standardization (ISO) containers.

[0004] Modern transport systems, such as ships, can carry thousands of containers, stacked one on top of the other to efficiently utilize available space. To ensure safety during transport, containers on board rely on various locking devices, including bottom locks, base locks, automatic locks, center locks, ground locks, levers, and tensioners, to connect to at least one adjacent container and are secured to the hull in rows. When a ship encounters severe weather, especially in rough seas, it experiences pitching, rolling, heaving, turbulence, and vibration due to the waves and swells. Containers on deck will also move under the combined effects of these external forces. At this time, the various locking devices used to secure the containers may loosen and develop gaps, or even fail to withstand the pulling force of the container's swaying and breaking. Continued swaying may first cause the affected row of containers to tip over, then exert additional external forces on adjacent rows, ultimately causing containers to fall overboard. This situation is particularly prominent when heavy containers are loaded on higher decks. This places extremely high demands on the strength of the locking devices used to secure the containers.

[0005] Today, due to the diversification of cargo categories and the increasing segmentation of the transportation market, high-value and time-sensitive goods are becoming more prevalent. Transportation time has thus become a significant potential cost, making it a crucial factor for shippers when choosing a mode of transport. Currently, thousands of containers are typically stacked on the same ship. This means that even small reductions in the time spent in each container handling stage can significantly save time and ultimately improve economic efficiency. The automation of container locking systems can undoubtedly greatly reduce the time costs of container transportation.

[0006] Shipping demands fast and efficient container loading and unloading, while minimizing personnel requirements during these processes. Currently, automatic locking and unlocking mechanisms exist for container connections. For example, the South Korean company "Kummyung" has developed an automatic twist lock suitable for securing containers to container trailers and ship decks. It automatically locks once a container is placed on it and returns to a non-operating state when the container is lifted. However, this twist lock only connects two containers longitudinally, resulting in insufficient container security. Other fully automatic locks also lack mechanisms for simultaneously locking and unlocking containers in both longitudinal and transverse directions. This lack of connection between container trains leads to lower stability in container stacking and transportation, increasing the risk of containers falling overboard and causing significant shipping losses. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to address the shortcomings of the existing container twist locks, such as the inability to simultaneously lock and unlock containers in both longitudinal and transverse directions, and the limited time and cost savings due to the difficulty in achieving fully automatic and efficient container connection. The present invention provides a fully automatic container interlocking mechanism that can automatically connect or release two containers in the longitudinal direction and two containers in the transverse direction at the same time, saving manual locking and unlocking time. Moreover, the lock itself can prevent tipping when containers tip over, eliminating the need for additional manpower to ensure the safety of container transportation.

[0008] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows:

[0009] A fully automatic container interlocking mechanism includes a housing, a longitudinal connecting device, and a transverse connecting device. The longitudinal connecting device connects two containers in a vertical direction, and the transverse connecting device connects two containers in a horizontal direction. The housing includes a shell with a long side and a short side. The shell can be rotated into the bottom hole of the corner fitting of the upper container. Specifically, it can enter the corner fitting when the long side of the shell is parallel to the long side of the bottom hole of the corner fitting. After entering, it rotates 90° to connect with the upper container. The longitudinal connecting device includes a coaxially arranged main shaft and a connecting component. The main shaft passes through the middle of the housing, and the connecting component is located below the main shaft. The connecting component includes a core and a guide portion. The guide portion is located below the core and is a cone shape for aligning with the top hole of the corner fitting of the lower container. The surface of the core is equipped with a first spiral and a second spiral arranged in parallel at intervals. The two helical components, with the connecting parts respectively relying on the helical paths provided by the top holes of the corner fittings of the lower container to achieve connection or separation with the lower container; the lateral connecting device includes a guide plate, a crank-connecting rod mechanism, and a locking element; the guide plate is fitted on the main shaft and located inside the housing, and the guide plate and the main shaft are driven by friction, and the guide plate has an arc-shaped groove; the crank-connecting rod mechanism includes a first rod, a second rod, and a slider, one end of the first rod is hinged to one end of the second rod, and the other end of the first rod is hinged to the slider, the slider is placed in the arc-shaped groove and can reciprocate within the arc-shaped groove, the second rod can extend out of the housing through the side holes provided on the housing; the locking element is fixed to the other end of the second rod; the guide plate moves with the movement of the longitudinal connecting device, and under the action of the crank-connecting rod mechanism, it further drives the locking element to synchronously achieve connection or separation with the side container.

[0010] In the above scheme, when the guide plate is subjected to a small force in the tangential direction of a rod, it moves up and down and rotates with the main shaft; when the guide plate is subjected to a large force in the tangential direction of a rod, it moves up and down with the main shaft.

[0011] In the above scheme, when the lateral connecting device is in the unlocked state, the rod is parallel to the tangential direction of the guide plate, and the locking element is separated from the side hole of the side container corner fitting; when the lateral connecting device is in the locked state, the rod rotates to be radially parallel to the guide plate, and the locking element is connected to the side hole of the side container corner fitting.

[0012] In the above solution, the side hole of the side container corner fitting is adapted to the locking component. The side hole of the side container corner fitting includes an unlocking position and a locking position. The locking position is located below the unlocking position. The two are T-shaped. The width of the unlocking position is greater than the width of the locking component, and the width of the locking position is less than the width of the locking component.

[0013] In the above scheme, the longitudinal connecting device further includes a connecting plate, which is rotatably mounted on the top of the main shaft and located outside the housing; the top of the housing is provided with a slot adapted to the connecting plate, and the connecting plate can be rotated to be located in the slot to realize the connection between the longitudinal connecting device and the housing.

[0014] In the above scheme, the longitudinal connecting device further includes an eccentric shaft and a spring; the eccentric shaft is located between the main shaft and the connecting component, the axes of the main shaft and the connecting component are collinear, and the axis of the eccentric shaft is parallel to the axes of the main shaft and the connecting component; the spring is fitted onto the eccentric shaft.

[0015] In the above scheme, two limiting members arranged vertically at intervals are installed on the eccentric shaft, and the spring is located between the two limiting members.

[0016] In the above scheme, the first spiral is higher than the second spiral. The first spiral includes a first guide surface at the bottom and a second guide surface at the top. The angle between the first guide surface and the horizontal plane is much smaller than the angle between the second guide surface and the horizontal plane. The second spiral includes a third guide surface at the bottom and a fourth guide surface at the top. The angle between the third guide surface and the horizontal plane is much smaller than the angle between the fourth guide surface and the horizontal plane.

[0017] In the above scheme, during the locking process, the third guide surface of the second spiral body first contacts the top hole of the corner fitting of the lower container, guiding the longitudinal connecting device to rotate clockwise when viewed from top to bottom; during the unlocking process, the second guide surface of the first spiral body first contacts the top hole of the corner fitting of the lower container, and the top hole of the corner fitting is also provided with a spiral path, guiding the longitudinal connecting device to rotate counterclockwise when viewed from top to bottom.

[0018] In the above scheme, the core of the joining component is a cylinder.

[0019] The beneficial effects of this invention are as follows:

[0020] 1. This invention adds a transverse connecting device that synchronizes with the longitudinal connecting device to achieve automatic locking and unlocking, thus combining the containers into a whole and enhancing the stability of container transportation. Furthermore, the transverse connecting device has a simple structure, can be integrated into the outer shell, is low in cost, and can achieve fully automatic simultaneous connection or release of two longitudinal containers and two transverse containers, saving manual locking and unlocking time.

[0021] 2. The longitudinal connecting device of the present invention includes a double-acting spiral cone. One spiral cone is used to make the entire interlocking mechanism rotate forward and enter the top hole of the corner fitting to lock when the container is lowered. The other spiral cone is used to make the entire interlocking mechanism rotate in the opposite direction and enter the top hole of the corner fitting to unlock when the container is raised. The tooth angles of the two spiral cones are different so that the upward force when tilting cannot unlock the connecting device, but it can unlock when the container is unloaded and a greater upward force is applied.

[0022] 3. The longitudinal connection device of the present invention includes an eccentric shaft. During the tilting process, one side of the container tends to detach, and the other side is the tilting fulcrum. When the eccentric shaft of the fully automatic container interlocking mechanism on the side of the container that tends to detach is subjected to a force perpendicular to the plane containing the center line of the eccentric shaft and the center line of the main shaft, it will rotate away from the tilting fulcrum. At this time, it is assumed that the size of the container remains unchanged. Using the Pythagorean theorem, it can be seen that the eccentric shaft can reduce the tilting tendency in this process.

[0023] 4. Existing locking mechanisms are divided into two types: those connecting containers to each other and those connecting the base of a container ship to a container. The fully automatic container interlocking mechanism of the present invention is applicable to both of these situations. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0025] Figure 1 This is a perspective view of the fully automatic container interlocking mechanism of the present invention;

[0026] Figure 2 This is a diagram showing the internal structure of the fully automated container interlocking mechanism.

[0027] Figure 3 This is a structural diagram of the longitudinal connection device of the fully automated container interlocking mechanism;

[0028] Figure 4 This is a structural diagram of the lateral connection device of a fully automated container interlocking mechanism;

[0029] Figure 5 It is a cross-sectional view of the corner fittings connecting two vertically aligned containers in a fully automatic container interlocking mechanism;

[0030] Figure 6 This is a schematic diagram showing the horizontal connecting device starting to lock as it moves with the vertical connecting device;

[0031] Figure 7 This is a schematic diagram of the locking process of the transverse connecting device moving with the longitudinal connecting device;

[0032] Figure 8 This is a schematic diagram showing how the transverse connecting device moves with the longitudinal connecting device to complete the locking process;

[0033] Figure 9This is a schematic diagram showing the unlocking process of the lateral connecting device as it moves with the longitudinal connecting device;

[0034] Figure 10 This is a schematic diagram of the unlocking process of the horizontal connecting device moving with the vertical connecting device;

[0035] Figure 11 This is a schematic diagram showing the unlocking process completed by the horizontal connecting device moving with the vertical connecting device;

[0036] Figure 12 This is a schematic diagram showing the force and motion trend of the eccentric shaft on the side of a container with a tipping tendency;

[0037] Figure 13 This is a diagram illustrating the principle of how an eccentric shaft reduces the tendency to tip over.

[0038] In the diagram: 100, Fully automatic container interlocking mechanism;

[0039] 10. Outer shell; 11. Housing; 111. Side hole; 12. Slot;

[0040] 20. Longitudinal connecting device; 21. Connecting plate; 22. Main shaft; 23. Eccentric shaft; 231. Spring; 232. Limiting element; 24. Engaging component; 241. Core; 242. Guide part; 243. First helix; 2431. First guide surface; 2432. Second guide surface; 244. Second helix; 2441. Third guide surface; 2442. Fourth guide surface;

[0041] 30. Lateral connecting device; 31. Guide plate; 311. Arc-shaped groove; 32. Crank-connecting rod mechanism; 321. First rod; 322. Second rod; 323. Sliding block; 33. Locking component;

[0042] 201. Upper container corner fitting; 202. Lower container corner fitting; 204. Side hole of upper container corner fitting; 205. Side hole of side container corner fitting; 206. Unlock position; 207. Locking position. Detailed Implementation

[0043] To provide a clearer understanding of the technical features, objectives, and effects of the present invention, specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0044] like Figure 1-4 As shown, an embodiment of the present invention provides a fully automatic container interlocking mechanism 100, which includes a housing 10, a longitudinal connecting device 20 and a transverse connecting device 30, wherein the longitudinal connecting device 20 is used to connect two containers in a vertical direction, and the transverse connecting device 30 is used to connect two containers in a horizontal direction.

[0045] The outer casing 10 serves two purposes: firstly, it connects to the upper container, and secondly, it positions the longitudinal connecting device 20 and the transverse connecting device 30. The outer casing 10 includes a housing 11, which has a long side and a short side. The housing 11 can be rotated into the bottom hole of the upper container corner fitting 201. Specifically, when the long side of the housing 11 is parallel to the long side of the bottom hole of the upper container corner fitting 201, it can enter the upper container corner fitting 201. After entering, it can be rotated 90° to achieve connection with the upper container.

[0046] The longitudinal connecting device 20 includes a main shaft 22 and a connecting component 24 coaxially arranged. The main shaft 22 passes through the middle of the housing 10, and rotation of the main shaft 22 cannot cause rotation of the housing 10. The connecting component 24 is located below the main shaft 22; the connecting component 24 includes a core 241 and a guide 242. The guide 242 is located below the core 241 and is a cone-shaped part used to align with the top hole of the lower container corner fitting 202; the surface of the core 241 is mounted with a first spiral 243 and a second spiral 244 arranged in parallel at intervals. The connecting component 24 connects or separates from the lower container by spiraling into or out of the top hole of the lower container corner fitting 202 through the spiral paths provided by the second spiral 244 and the first spiral 243.

[0047] Specifically, the first helix 243 is higher than the second helix 244. The working principle of the two helices is similar to that of a double-threaded screw, which can improve the efficiency of screwing in and out. The first helix 243 includes a first guide surface 2431 located at the bottom and a second guide surface 2432 located at the top. The angle between the first guide surface 2431 and the horizontal plane is much smaller than the angle between the second guide surface 2432 and the horizontal plane, analogous to the lower tooth deviation angle of a thread being much smaller than the upper tooth deviation angle. The second helix 244 includes a third guide surface 2441 located at the bottom and a fourth guide surface 2442 located at the top. The angle between the third guide surface 2441 and the horizontal plane is much smaller than the angle between the fourth guide surface 2442 and the horizontal plane. During the locking process, the third guide surface 2441 of the second helix 244 first contacts the top hole of the lower container corner fitting 202. When the longitudinal connecting device 20 is viewed from top to bottom, it rotates clockwise. Because the angle between the third guide surface 2441 and the horizontal plane is small, it is easy for the engaging part 24 to enter the top hole of the lower container corner fitting. For the locked state, please refer to Figure 5 During the unlocking process, the second guide surface 2432 of the first spiral 243 first contacts the top hole of the corner fitting 202 of the lower container. The top hole of the corner fitting also has a spiral path, guiding the longitudinal connecting device 20 to rotate counterclockwise when viewed from above. Since the second guide surface 2432 has a large angle with the horizontal plane, it is easy to self-lock. When tilting, the vertical upward force on the present invention is insufficient to disengage the connecting part 24 from the corner fitting. However, when unloading the container, the vertical upward force on the present invention can achieve unlocking.

[0048] The transverse connecting device 30 includes a guide plate 31, a crank-connecting rod mechanism 32, and a locking element 33. The guide plate 31 is mounted on the main shaft 22 and located inside the housing 10. The guide plate 31 and the main shaft 22 are driven by friction. The guide plate 31 has an arc-shaped groove 311. The crank-connecting rod mechanism 32 includes a first rod 321, a second rod 322, and a slider 323. One end of the first rod 321 is hinged to one end of the second rod 322, and the other end of the first rod 321 is hinged to the slider 323. The slider 323 is placed in the arc-shaped groove 311 of the guide plate 31 and can reciprocate within the arc-shaped groove 311. When the guide plate 31 is subjected to a small force in the tangential direction of the first rod 321, it moves up and down and rotates with the main shaft 22; when the guide plate 31 is subjected to a larger force in the tangential direction of the first rod 321, it moves up and down with the main shaft 22. A portion of rod 321 and rod 322 are always inside the outer casing 10. Rod 322 can extend out of the outer casing 10 through the side hole 111 provided on the outer casing 10, and further extend out of the upper container where the outer casing 10 is located through the side hole 204 of the upper container corner fitting and enter the side hole 205 of the side container corner fitting. Lock 33 is fixed to the other end of rod 322 and can be connected to the side container. The crank-connecting rod mechanism 32 moves in the horizontal plane with the movement of the longitudinal connecting device 20, driving the lock 33 to connect or separate from the side container. In the unlocked state of the transverse connecting device 30, rod 321 is parallel to the tangential direction of the guide plate 31; in the locked state of the transverse connecting device 30, rod 321 rotates to be radially parallel to the guide plate 31.

[0049] Specifically, the side hole 205 of the side container corner fitting is adapted to the lock 33. The side hole 205 of the side container corner fitting includes an unlocking position 206 and a locking position 207. The locking position 207 is located below the unlocking position 206. The two are T-shaped. The width of the unlocking position 206 is greater than the width of the lock 33, and the width of the locking position 207 is less than the width of the lock 33.

[0050] like Figure 6-8 As shown, the locking process of the transverse connecting device 30 with the longitudinal connecting device 20 is as follows:

[0051] When the longitudinal connecting device 20 is locked downwards, it will rotate in the forward direction. During this process, the slider 323 and the arc-shaped groove 311 have no relative movement, so that the rod 321 gradually turns from the direction tangential to the guide plate 31 to the diameter direction of the guide plate 31. The movement of the rod 321 provides power for the two rods 322 to extend out of the outer shell 10. The upper side hole 111 of the outer shell 10 allows the two rods 322 to move only along the line connecting them to the side hole 204 of the upper container corner fitting. After the two rods 322 extend a certain length, the locking member 33 enters the unlocking position 206 of the side hole 205 of the side container corner fitting. At this time, because the two rods 322 are subject to certain constraints, the force of the rod 321 on the guide plate 31 along the tangent of the guide plate 31 is relatively large. The guide plate 31 only continues to move downwards with the axis, so that the locking member 33 continues to move downwards and enters the locking position 207 of the side hole 205 of the side container corner fitting, thus achieving locking.

[0052] like Figure 9-11 As shown, the unlocking process of the lateral connecting device 30 along with the longitudinal connecting device 20 is as follows:

[0053] The longitudinal connecting device 20 rotates in the opposite direction during the upward unlocking process. Initially, the locking element 33 is still in the locking position 207 of the side hole 205 of the side container corner fitting, but gradually moves upward towards the unlocking position 206. During this process, the first rod 321 and the second rod 322 remain completely aligned with the diameter direction of the guide plate 31. The slider 323 slides within the arc-shaped groove 311, ensuring that the friction between the guide plate 31 and the main shaft 22 is not less than the force exerted by the first rod 321 on the guide plate 31. The guide plate 31 rotates in the opposite direction along with the main shaft 22. Afterward, the locking element 33 continues to rise to the unlocking position 206 of the side hole 205 of the side container corner fitting. At this time, the slider 323 also moves to the other side of the arc-shaped groove 311. Under the action of the guide plate 31, the first rod 321 changes from the diameter direction of the guide plate 31 to the tangential direction of the guide plate 31, causing the second rod 322 to retract mostly into the outer casing 10, completing the unlocking process. The arc-shaped groove 311 serves to reduce wear caused by the relative movement between the guide plate 31 and the main shaft 22.

[0054] Further optimization includes a connecting plate 21 on the top of the spindle 22, located outside the housing 10. The housing 10 has a slot 12 on its top that fits the connecting plate 21, allowing the connecting plate 21 to rotate into the slot 12, thus connecting the longitudinal connecting device 20 to the housing 10. The rotation of the connecting plate 21, housing 10, and spindle 22 is independent. The housing 10 can be disassembled along its central plane.

[0055] Further optimization includes an eccentric shaft 23 and a spring 231 in the longitudinal connecting device 20. The eccentric shaft 23 is located between the main shaft 22 and the connecting component 24, with the axes of the main shaft 22 and the connecting component 24 collinear. The axis of the eccentric shaft 23 is parallel to the axes of the main shaft 22 and the connecting component 24. The spring 231 is fitted onto the eccentric shaft 23 to help the eccentric shaft 23 partially straighten after bending. Specifically, two vertically spaced limiting members 232 are installed on the eccentric shaft 23, and the spring 231 is located between the two limiting members 232. The eccentric shaft 23 is the eccentric part inside the main shaft 22, which enhances the anti-tipping effect of the container. Figure 12-13 As shown, its working principle is as follows:

[0056] When a container is about to tip over, one side of its bottom is usually the tipping fulcrum, while the other three sides tend to detach. At this moment, the part with the tendency to detach is connected to two fully automatic container interlocking mechanisms 100. If the tipping force on these two mechanisms has a component force perpendicular to the plane of the main rotation axis 22 and the eccentric axis 23, the eccentric axis 23 will be rotated away from the tipping fulcrum. Assuming that the container size does not change, according to the Pythagorean theorem, the increase in the distance between the eccentric axis 23 and the tipping fulcrum weakens the tipping tendency of the container on the tipping side, that is, the tilt angle α decreases.

[0057] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0058] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present invention.

Claims

1. A fully automatic container interlocking mechanism, characterized in that, It includes an outer shell, a longitudinal connecting device, and a transverse connecting device; the longitudinal connecting device is used to connect two containers in a vertical direction, and the transverse connecting device is used to connect two containers in a horizontal direction; The outer shell includes a housing, which includes a long side and a short side. The housing can be rotated into the bottom hole of the upper container corner fitting. That is, when the long side of the housing is parallel to the long side of the bottom hole of the upper container corner fitting, it can enter the upper container corner fitting. After entering, it can be rotated 90° to achieve connection with the upper container. The longitudinal connecting device includes a main shaft and a connecting component arranged coaxially. The main shaft passes through the middle of the housing. The connecting component is located below the main shaft and includes a core and a guide. The guide is located below the core and is a cone-shaped part used to align with the top hole of the corner fitting of the lower container. The surface of the core is equipped with a first spiral and a second spiral arranged in parallel and spaced apart. The connecting component relies on the two spirals to spiral into or out of the top hole of the corner fitting of the lower container to achieve connection or separation with the lower container. The lateral connecting device includes a guide plate, a crank-connecting rod mechanism, and a locking element. The guide plate is fitted onto the main shaft and located inside the housing. The guide plate and the main shaft are driven by friction, and the guide plate has an arc-shaped groove. The crank-connecting rod mechanism includes a first rod, a second rod, and a slider. One end of the first rod is hinged to one end of the second rod, and the other end of the first rod is hinged to the slider. The slider is placed in the arc-shaped groove and can reciprocate within it. The second rod can extend out of the housing through a side hole provided on the housing. The locking element is fixed to the other end of the second rod. The guide plate moves with the movement of the longitudinal connecting device, and under the action of the crank-connecting rod mechanism, it further drives the locking element to synchronously connect or separate from the side container.

2. The fully automatic container interlocking mechanism according to claim 1, characterized in that, When the guide plate is subjected to a small force in the tangential direction of a rod, it moves up and down and rotates with the main shaft; when the guide plate is subjected to a large force in the tangential direction of a rod, it moves up and down with the main shaft.

3. The fully automatic container interlocking mechanism according to claim 2, characterized in that, In the unlocked state, the first rod of the lateral connecting device is parallel to the tangential direction of the guide plate, and the locking element is separated from the side hole of the side container corner fitting; in the locked state, the first rod rotates to be radially parallel to the guide plate, and the locking element is connected to the side hole of the side container corner fitting.

4. The fully automatic container interlocking mechanism according to claim 2, characterized in that, The side hole of the side container corner fitting is adapted to the locking piece. The side hole of the side container corner fitting includes an unlocking position and a locking position. The locking position is located below the unlocking position. The two are T-shaped. The width of the unlocking position is greater than the width of the locking piece, and the width of the locking position is less than the width of the locking piece.

5. The fully automatic container interlocking mechanism according to claim 1, characterized in that, The longitudinal connecting device further includes a connecting plate, which is rotatably mounted on the top of the main shaft and located outside the housing; the top of the housing is provided with a slot adapted to the connecting plate, and the connecting plate can be rotated to be located in the slot to realize the connection between the longitudinal connecting device and the housing.

6. The fully automatic container interlocking mechanism according to claim 1, characterized in that, The longitudinal connecting device further includes an eccentric shaft and a spring; the eccentric shaft is located between the main shaft and the connecting component, the axes of the main shaft and the connecting component are collinear, and the axis of the eccentric shaft is parallel to the axes of the main shaft and the connecting component; the spring is fitted onto the eccentric shaft.

7. The fully automatic container interlocking mechanism according to claim 6, characterized in that, Two limiting members are installed on the eccentric shaft at an interval between them, and the spring is located between the two limiting members.

8. The fully automatic container interlocking mechanism according to claim 1, characterized in that, The first helix is ​​higher than the second helix. The first helix includes a first guide surface at the bottom and a second guide surface at the top. The angle between the first guide surface and the horizontal plane is much smaller than the angle between the second guide surface and the horizontal plane. The second helix includes a third guide surface at the bottom and a fourth guide surface at the top. The angle between the third guide surface and the horizontal plane is much smaller than the angle between the fourth guide surface and the horizontal plane.

9. The fully automatic container interlocking mechanism according to claim 8, characterized in that, During the locking process, the third guide surface of the second spiral body first contacts the top hole of the corner fitting of the lower container, guiding the longitudinal connecting device to rotate clockwise when viewed from top to bottom; during the unlocking process, the second guide surface of the first spiral body first contacts the top hole of the corner fitting of the lower container, and the top hole of the corner fitting is also provided with a spiral path, guiding the longitudinal connecting device to rotate counterclockwise when viewed from top to bottom.

10. The fully automatic container interlocking mechanism according to claim 1, characterized in that, The core of the joining component is cylindrical.

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