Container stacking twist lock

Abstract

The invention relates to a container stacking twist lock, and relates to the technical field of container accessories. The device comprises an inserting block and a locking bolt, and the inserting block is detachably connected to the container corner fitting and located in a preset cavity in the container corner fitting; a threaded hole for inserting the locking bolt is formed in the inserting block; for the containers needing to be mutually spliced, the locking bolts are used for penetrating through the inserting blocks in the container corner fittings installed on one container and are in threaded connection with the inserting blocks in the container corner fittings installed on the other container. The container fixing device has the effect of conveniently and efficiently fixing the containers in the stacked state.

Description

Technical Field

[0001] The present application relates to the technical field of container accessories, and in particular to a container stacking twist lock. Background Art

[0002] With the development of standardized technology, container structures are widely used not only in the transportation industry but also in other fields such as construction. They bring convenience and durability to projects, reduce construction costs, and improve work efficiency. They are particularly effective in the transportation, installation, and use of mobile homes.

[0003] However, in use, container-type mobile houses require a large number of boxes to be stacked and connected together, and hard connections such as welding are often used to achieve stacking and fixing. In this way, the stacked boxes may be offset. However, due to the inconvenience of disassembly and assembly during the welding process, especially the time-consuming and labor-intensive operations such as on-site welding, cutting, and construction, if the house needs to be removed or moved again, the assembled structure needs to be destroyed, resulting in most of the structure being unable to be reused and having to be discarded. The disassembly and assembly process is even more complicated and difficult, so there is room for improvement. Summary of the Invention

[0004] In order to achieve convenient and efficient fixation of stacked containers, the present application provides a container stacking twist lock.

[0005] The present application provides a container stacking twist lock, comprising a plug-in block and a locking bolt, wherein the plug-in block is detachably connected to the container corner fitting and is located in a preset cavity inside the container corner fitting; a threaded hole for inserting the locking bolt is provided on the plug-in block; for containers that need to be spliced together, the locking bolt is used to pass through the plug-in block in the container corner fitting installed on one of the containers, and be threadedly connected to the plug-in block in the container corner fitting installed on the other container.

[0006] By adopting the above technical solution, a stacking twist lock is adapted to be provided with the help of the container corner fittings installed on the container, and the stacking twist lock specifically includes a plug-in block and a locking bolt. The plug-in block of the present application is provided inside the container corner fitting, thereby realizing a built-in stacking twist lock. The plug-in blocks located in the two container corner fittings are then fixedly connected by using the locking bolts, thereby replacing the welding fixation method to achieve a convenient connection. When the stacked containers need to be separated, it is only necessary to turn the locking bolt to release the threaded connection relationship of the plug-in block.

[0007] Preferably, the plug-in block includes a base and a docking block arranged on the base, the base is used to pass through the preset bar hole of the container corner fitting and be inserted into the preset cavity inside the container corner fitting, and the locking bolt is used to threadably connect the docking block.

[0008] By adopting the above technical solution, the base can pass through the strip hole and be inserted into the preset cavity inside the container corner fitting. Then, the base can be rotated 90 degrees so that the base and the strip hole do not overlap with each other, so that the base and the docking block arranged on the base cannot be separated from the preset cavity inside the container corner fitting. At this time, the docking block is threadedly connected by the locking bolt to realize the splicing of the two container corner fittings. Since the container corner fittings are pre-fixed and installed on the container, the above solution can realize fixed splicing between stacked containers. In addition, since the above solution makes use of the unique strip hole of the container corner fitting, the plug-in block is designed as a base compatible with it, and the plug-in block and the container corner fitting are efficiently fixed by rotating the base, which further improves the convenience of disassembly and assembly.

[0009] Preferably, the docking blocks corresponding to the two plug-in blocks threadedly connected to the same locking bolt are respectively the first docking block and the second docking block, and the first docking block is slidably connected to the corresponding base, and the second docking block is arranged on the corresponding base, and the side walls of the first docking block and the second docking block are respectively provided with plug-in pieces and slots for inserting other plug-in pieces, and also include a driving member for driving the first docking block to slide.

[0010] By adopting the above technical solution, before the first docking block and the second docking block are threadedly connected by the locking bolt, the first docking block can be driven to slide relative to the base by the driving member, and then the container corner piece including the first docking block and the second docking block are brought close to each other, so that the second docking block is moved to the position before the first docking block slides, so that each plug-in piece on the first docking block and the second docking block is located in the groove depth direction of the slot on the other docking block, and then the first docking block is moved in the opposite direction to allow the plug-in piece to be inserted into the slot. By inserting the plug-in piece into the slot in advance, the manual limit of the two plug-in blocks can be released, thereby realizing a convenient connection between the locking bolt and the docking block.

[0011] Preferably, it also includes a stop baffle arranged in a preset cavity inside the container corner fitting. The stop baffle is arranged on the side wall of the support plate and is located on the rotation path of the base. When the base is rotated to the preset designated position, the length direction of the base and the preset bar hole of the container corner fitting do not overlap with each other, and at this time the end wall of the base conflicts with the side wall of the stop baffle.

[0012] By adopting the above technical solution, after the base is inserted into the preset cavity inside the container corner fitting, the base rotates in the direction away from the bar hole of the container corner fitting until the end wall of the base collides with the anti-rotation baffle, and the rotation angle of the base is limited and fixed by the anti-rotation baffle.

[0013] Preferably, the first docking block includes a splicing block symmetrically and slidingly connected to the base, and the driving member includes a first protrusion and a first spring arranged in a one-to-one correspondence with the splicing blocks, the expansion and contraction direction of the first spring is parallel to the sliding direction of the corresponding splicing block relative to the base, the first protrusion is slidably connected to the base through the first spring, and one end of the first protrusion is connected to the corresponding splicing block, and the other end passes through the base and is located outside the base; the inner wall of the preset cavity inside the container corner piece near the anti-rotation baffle is located on the path of the first protrusion rotating with the base, and when the base conflicts with the anti-rotation baffle, the first protrusion is pressed by the inner wall of the preset cavity inside the container corner piece near the anti-rotation baffle and moves toward the splicing block, so that the two splicing blocks move away from each other to form a clearance space for the second splicing block to be inserted; the driving member includes a moving component for driving the insert to move relative to the splicing block.

[0014] By adopting the above technical solution, the base is rotated to a preset position by means of the rotation of the base and the limiting effect of the limiting ring plate, so that the splicing blocks are separated from each other to form a clearance space for the second docking block to be inserted.

[0015] Preferably, the moving component includes a second protrusion and a second spring, and the insert is slidably connected to the corresponding splicing block through the second spring. The second protrusion is arranged in a one-to-one correspondence with the insert, and is located on the inner wall of a preset cavity inside the container corner fitting, close to the bar hole. When the second spring is not deformed, when the base moves in a direction close to the second protrusion, the second protrusion is located on the path of the insert moving with the base, so that when the insert collides with the corresponding second protrusion, the insert is able to slide and be inserted into the corresponding slot due to the interference of the corresponding second protrusion.

[0016] By adopting the above technical solution, a person reaches into the preset cavity inside the container corner piece where the first docking block is inserted, and manually pushes the base to move the base toward the second protrusion, so that the insert contacts the second protrusion as the base moves, and is contacted by the second protrusion to slide relative to the corresponding splicing block and insert into the corresponding slot.

[0017] Preferably, a base side wall of the first connecting block is provided, and a docking port is opened in the insertion direction when the second connecting block is inserted into the clearance space, the docking port is used for the insertion of the second connecting block, the locking bolt is threadedly connected to the base with the first connecting block, and the docking port is located in the length direction of the locking bolt, and the side wall of the second connecting block is provided with a locking hole for the insertion of the locking bolt.

[0018] By adopting the above technical solution, the insert will pass through the clearance space and be inserted into the slot, and the locking bolt will pass through the docking interface and be connected to the second connecting block. The docking interface and the slot are evenly distributed along the insertion direction of the second connecting block, thereby achieving uniform distribution of locking points while ensuring multiple stable locking.

[0019] Preferably, the base with the first docking block is provided with a threaded hole for threaded insertion of a locking bolt, and a sealing layer is provided on the inner wall of the base near the threaded hole.

[0020] By adopting the above technical solution, the provision of the sealing layer enhances the waterproof effect of the locking bolt, thereby protecting the locking bolt and ensuring the locking effect of the locking bolt.

[0021] Preferably, among the preset holes on the container corner fitting, there is a preset hole located in the screwing direction of the locking bolt thread.

[0022] By adopting the above technical solution, in order to facilitate the tightening operation of the locking bolt, a preset hole is defined in the tightening direction of the locking bolt, so that the operator can pass an external tool through the preset hole and penetrate into the preset cavity inside the container corner piece to achieve tightening.

[0023] Preferably, the surfaces of the first docking block and the second docking block are provided with magnetic attracting parts for magnetically attracting each other.

[0024] By adopting the above technical solution, the magnetic attraction member is used to achieve magnetic attraction and fixation of the first docking block and the second docking block, thereby increasing the stability of the second docking block after being inserted into the clearance space and the docking interface.

[0025] In summary, this application has the following beneficial technical effects: 1. A stacking twist lock is adapted to be installed with a container corner fitting installed on the container. The stacking twist lock specifically includes a plug-in block and a locking bolt. The plug-in block of the present application is arranged inside the container corner fitting, realizing a built-in stacking twist lock. The plug-in blocks located in two container corner fittings are then fixedly connected by the locking bolt, thereby replacing the welding fixation method to achieve a convenient connection. 2. The base can pass through the strip hole and be inserted into the preset cavity inside the container corner fitting. Then, the base can be rotated 90 degrees so that the base and the strip hole do not overlap with each other, so that the base and the docking block provided on the base cannot be separated from the preset cavity inside the container corner fitting. At this time, the docking block is threadedly connected by a locking bolt to achieve the splicing of the two container corner fittings. Since the container corner fittings are pre-fixed and installed on the container, the above solution can achieve fixed splicing between stacked containers. In addition, since the above solution makes use of the unique strip holes of the container corner fittings and the plug-in block is designed as a base compatible with them, the plug-in block and the container corner fitting are efficiently fixed by rotating the base, further improving the convenience of disassembly and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the positional relationship between a container stacking twist lock relative to a container and a container corner fitting disclosed in Example 1 of the present application.

[0027] Figure 2 yes Figure 1 Enlarged schematic diagram of point A in the middle.

[0028] Figure 3 This is a cross-sectional view illustrating the connection between the container stacking twist lock and the container corner fitting in Example 1.

[0029] Figure 4 This is an exploded schematic diagram used to illustrate the positional relationship between the container stacking twist lock and the container corner fitting in Example 1 of the present application.

[0030] Figure 5 yes Figure 5 Cross-sectional view along the BB direction.

[0031] Figure 6 This is an exploded schematic diagram used to illustrate the positional relationship between the container stacking twist lock and the container corner fitting in Example 2 of the present application.

[0032] Figure 7 It is a cross-sectional top view used to reflect the internal structure of the container corner fitting in Example 2 of the present application.

[0033] Figure 8 It is a cross-sectional view used to illustrate the positional relationship between the container stacking twist lock and the container corner fitting in Example 2 of the present application.

[0034] Explanation of the accompanying reference numerals: 1. Plug-in block; 11. Base; 111. Docking port; 12. Docking block; 121. Square block; 122. Square hole; 13. First docking block; 131. Splicing block; 132. Insert; 133. Slot; 14. Second docking block; 141. Through hole; 142. Locking hole; 15. Make way; 2. Locking bolt; 3. Container corner fitting; 31. Strip hole; 32. Preset hole; 33. Anti-rotation baffle; 4. Driving member; 41. First protrusion; 42. First spring; 43. Second protrusion; 44. Second spring. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-7 This application is described in further detail.

[0036] Example 1 Example 1 of the present application discloses a container stacking twist lock. Figure 1 、 Figure 2 and Figure 3 The container stacking twist lock includes a plug-in block 1 and a locking bolt 2. The plug-in block 1 is arranged in a one-to-one correspondence with the container corner fitting 3. The plug-in block 1 specifically includes a base 11 and a docking block 12 fixedly connected to the base 11. The cross-sectional shape of the base 11 is the same as the shape of the bar hole 31 pre-opened on the container corner fitting 3, and the size of the docking block 12 is smaller than the width of the bar hole 31, so that the docking block 12 can be adjusted along with the base 11 and inserted into the preset cavity inside the corresponding container corner fitting 3. Two plug-in blocks 1 correspond to one locking bolt 2. The locking bolt 2 passes through one of the plug-in blocks 1 and is threadedly connected to the other plug-in block 1 to achieve a fixed connection between the two plug-in blocks 1.

[0037] One of the two plug-in blocks 1 for threaded connection with the same locking bolt 2 has a square block 121 on its side wall, and the other plug-in block 1 has a square hole 122 for inserting the square block 121 on its side wall. The locking bolt 2 is threadedly connected to the side wall of the square block 121.

[0038] The implementation principle of a container stacking twist lock disclosed in Example 1 of the present application is as follows: when it is necessary to fix the stacking position of two containers stacked one above the other, before stacking the containers, a container corner fitting 3 is first fixedly installed (e.g., welded) at the top corner of the container. Then, the container stacking twist lock disclosed in the present application is installed in the container corner fitting 3 of the lower container (hereinafter referred to as the lower corner fitting). The specific installation process is as follows: the base 11 is inserted through the bar hole 31 in a state parallel to the length direction of the bar hole 31 and into the preset cavity inside the lower corner fitting, with the docking block 12 located near the bar hole 31. The base 11 is then rotated 90°, at which point the length direction of the base 11 is perpendicular to the length direction of the bar hole 31. To prevent the docking block 12 from interfering with the rotation of the base 11, the size of the docking block 12 is specified as smaller than the width of the bar hole 31. Therefore, the base 11 can be rotated while the docking block 12 is inserted into the bar hole 31 or after it has completely penetrated the bar hole 31.

[0039] Then, in the same manner, the container stacking twist lock disclosed in the present application is inserted into the container corner fitting 3 (ie, the upper corner fitting) of the upper container, with the docking block 12 located on the side close to the bar hole 31 . Then the upper container is lifted and stacked on top of the lower container so that the upper corner fitting is in contact with the upper surface of the lower corner fitting. At this time, the base 11 can be slid along the length direction of the strip hole 31 so that the docking block 12 is located in the vertical direction and the square block 121 is aligned with the square hole 122. Then, the human hand reaches into the upper corner fitting and the lower corner fitting through the preset hole 32 preset on the side wall of the container corner fitting 3 at the same time, and moves the two bases 11 in a direction close to each other so that the square block 121 is inserted into the square hole 122. Then, an external tool is used to thread the locking bolt 2 so that the locking bolt 2 passes through the upper docking block 12 and is threadedly connected to the square block 121 of the lower docking block 12. It should be noted here that when the plug-in block 1 is installed in the upper corner fitting, the locking bolt 2 can be inserted into the plug-in block 1 in advance so that the locking bolt 2 is installed in the upper corner fitting together.

[0040] Example 2 The difference between Example 2 of the present application and Example 1 is that, referring to Figure 5 、 Figure 6 and Figure 7 The docking blocks 12 corresponding to the two plug-in blocks 1 threadedly connected to the same locking bolt 2 are respectively called the first docking block 13 and the second docking block 14, wherein the first docking block 13 is located in the lower corner fitting, the second docking block 14 is located in the upper corner fitting, and the second docking block 14 is fixedly connected to the corresponding base 11, and the first docking block 13 specifically includes two splicing blocks 131 slidably connected to the corresponding base 11.

[0041] The assembly further includes a driving member 4 disposed within the lower corner fitting. The driving member 4 includes a first protrusion 41 and a first spring 42, each corresponding to the splicing block 131. The first spring 42 is sleeved over the corresponding first protrusion 41, with one end of the first spring 42 connected to the corresponding first protrusion 41 and the other end connected to the inner wall of the base 11. One end of the first protrusion 41 is connected to the side wall of the corresponding splicing block 131. When the first spring 42 is not deformed, the end of the first protrusion 41 away from the corresponding docking block 12 passes through the base 11 and is located outside the base 11.

[0042] Correspondingly, a stop plate 33 is fixed within the preset cavity within the lower corner fitting. The stop plate 33 corresponds to the first protrusion 41. When the first spring 42 is undeformed and the base 11 rotates 90° away from the slot 31, the first protrusion 41 moves with the rotation of the base 11. During this movement, the end of the first protrusion 41 exposed outside the base 11 contacts the inner wall of the preset cavity within the lower corner fitting and retracts into the base 11. At this point, the first spring 42 deforms, and the connecting block 131 moves with the corresponding first protrusion 41, causing the two connecting blocks 131 to move away from each other. This creates a clearance space 15 between the two connecting blocks 131 for the insertion of the second docking block 14. When the base 11 rotates 90° (i.e., to the preset designated position), the sidewalls of the base 11 contact the stop plate 33, halting rotation.

[0043] In addition, the side wall of the base 11 with the splicing block 131 facing the clearance space 15 is also provided with a docking port 111 for inserting the second docking block 14. When the clearance space 15 is formed between the two splicing blocks 131, the two bases 11 in the upper corner piece and the lower corner piece are driven to move simultaneously toward the direction close to the strip hole 31, so that the second docking block 14 is inserted into the clearance space 15 and the docking port 111.

[0044] Furthermore, the side walls of the two joining blocks 131 facing each other are slidably connected with an insert 132 and a slot 133. The slot 133 is used to insert an insert 132 on another joining block 131 other than the one to which it belongs. Correspondingly, a through hole 141 is formed through the side wall of the second docking block 14 for each insert 132 to pass through. The driving member 4 also includes a moving component, which includes a second protrusion 43 and a second spring 44. The insert 132 is slidably connected to the corresponding joining block 131 via the second spring 44. The second protrusion 43 and the second spring 44 are provided in a one-to-one correspondence. The second protrusion 43 is connected to the inner wall of the lower corner piece where the strip hole 31 is formed.

[0045] When the second spring 44 is not deformed, if the base 11 is driven to move toward the direction close to the bar hole 31, the end of the plug 132 away from the clearance space 15 moves with the movement of the base 11, and the second protrusion 43 is located on the moving path of the corresponding plug 132, and the second protrusion 43 and the end of the corresponding plug 132 are jointly provided with an inclined surface, so as to push the plug 132 when it conflicts with the corresponding plug 132, so that the plug 132 slides toward the direction close to the clearance space 15, and when the second docking block 14 is fully inserted into the clearance space 15 and the docking port 111, the through hole 141 on the second docking block 14 is exactly located at the moving path of the plug 132 The plug-in piece 132 is on the path, thereby allowing the plug-in piece 132 to pass through the through hole 141 and be inserted into the slot 133 on the other splicing block 131. In order to prevent the plug-in piece 132 from being pushed by the second protrusion 43 and moving due to the through hole 141 on the second docking block 14 not moving to the moving path of the plug-in piece 132, the plug-in piece 132 in the embodiment of the present application can be specifically made of an elastically deformable material or a spring-loaded telescopic sleeve, which shrinks and deforms when it receives the resistance of the second protrusion 43 and the second docking block 14 at the same time, and restores its deformation and passes through the through hole 141 and is inserted into the slot 133 when the through hole 141 on the second docking block 14 moves to the moving path of the plug-in piece 132.

[0046] The locking bolt 2 is threadedly connected to the inner wall of the base 11, which is provided with a docking port 111. The docking port 111 is located on one side of the base 11, and the docking port 111 is located in the direction of tightening the locking bolt 2. Accordingly, a locking hole 142 is defined on the side wall of the second docking block 14, which is inserted into the docking port 111, for inserting the locking bolt 2. The inner wall of the base 11, near the locking hole 142, is provided with a sealing layer, which can be made of rubber, to reduce corrosion of the locking bolt 2. Furthermore, among all the preset holes 32 on the lower corner piece, one is located in the direction of tightening the locking bolt 2. This allows construction workers to borrow tools and directly penetrate the preset hole 32 to tighten the locking bolt 2, thereby partially inserting the locking bolt 2 into the locking hole 142, further ensuring a secure insertion of the second docking block 14 and the docking port 111.

[0047] Magnetic elements are provided on the surfaces of the first docking block 13 and the second docking block 14 . The magnetic elements are specifically magnetic magnets and adsorption iron sheets for achieving magnetic attraction between the first docking block 13 and the second docking block 14 .

[0048] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A container stacking twist lock, characterized by: The invention comprises a plug-in block (1) and a locking bolt (2); the plug-in block (1) is detachably connected to a container corner fitting (3) and is located in a preset cavity inside the container corner fitting (3); a threaded hole for inserting the locking bolt (2) is provided on the plug-in block (1); for containers that need to be spliced together, the locking bolt (2) is used to pass through the plug-in block (1) in the container corner fitting (3) installed on one container and be threadedly connected to the plug-in block (1) in the container corner fitting (3) installed on the other container.

2. The container stacking twist lock according to claim 1, characterized in that: The plug-in block (1) comprises a base (11) and a docking block (12) arranged on the base (11); the base (11) is used to pass through a preset bar hole (31) of a container corner piece (3) and be inserted into a preset cavity inside the container corner piece (3); and the locking bolt (2) is used to be threadedly connected to the docking block (12).

3. The container stacking twist lock according to claim 2, characterized in that: The docking blocks (12) corresponding to the two plug-in blocks (1) threadedly connected to the same locking bolt (2) are respectively a first docking block (13) and a second docking block (14), and the first docking block (13) is slidably connected to the corresponding base (11), and the second docking block (14) is arranged on the corresponding base (11). The side walls of the first docking block (13) and the second docking block (14) are respectively provided with plug-in pieces (132) and slots (133) for inserting other plug-in pieces (132), and also include a driving member (4) for driving the first docking block (13) to slide.

4. The container stacking twist lock according to claim 3, characterized in that: The container corner fitting (3) further comprises a rotation-stopping plate (33) arranged in a preset cavity inside the container corner fitting (3); the rotation-stopping plate (33) is arranged on the side wall of the support plate and is located on the rotation path of the base (11); when the base (11) rotates to a preset designated position, the length direction of the base (11) and the preset bar hole (31) of the container corner fitting (3) do not overlap each other, and at this time, the end wall of the base (11) and the side wall of the rotation-stopping plate (33) are in conflict.

5. The container stacking twist lock according to claim 4, characterized in that: The first docking block (13) includes a splicing block (131) symmetrically slidably connected to the base (11); the driving member (4) includes a first protrusion (41) and a first spring (42) arranged in a one-to-one correspondence with the splicing block (131); the expansion and contraction direction of the first spring (42) is parallel to the sliding direction of the corresponding splicing block (131) relative to the base (11); the first protrusion (41) is slidably connected to the base (11) through the first spring (42); one end of the first protrusion (41) is connected to the corresponding splicing block (131), and the other end passes through the base (11) and is located outside the base (11); The inner wall of the preset cavity in the container corner fitting (3) near the anti-rotation baffle (33) is located on the path of the first protrusion (41) rotating with the base (11), and when the base (11) and the anti-rotation baffle (33) collide with each other, the first protrusion (41) is pressed by the inner wall of the preset cavity in the container corner fitting (3) near the anti-rotation baffle (33) and moves toward the splicing block (131), so that the two splicing blocks (131) move in directions away from each other to form a clearance space (15) for the second splicing block (131) to be inserted; the driving member (4) includes a moving component for driving the inserting piece (132) to move relative to the splicing block (131).

6. The container stacking twist lock according to claim 5, characterized in that: The moving component includes a second protrusion (43) and a second spring (44), and the inserting piece (132) is slidably connected to the corresponding splicing block (131) through the second spring (44). The second protrusion (43) and the inserting piece (132) are arranged in a one-to-one correspondence and are located in the inner wall of the preset cavity inside the container corner piece (3) and close to the strip hole (31). When the second spring (44) is not deformed, when the base (11) moves in a direction close to the second protrusion (43), the second protrusion (43) is located on the path of the inserting piece (132) moving with the base (11), so that when the inserting piece (132) contacts the corresponding second protrusion (43), the inserting piece (132) is able to slide due to the contact of the corresponding second protrusion (43) and be inserted into the corresponding slot (133).

7. The container stacking twist lock according to claim 6, characterized in that: A side wall of a base (11) provided with a first connecting block is provided with a docking port (111) in the insertion direction when the second connecting block is inserted into the clearance space (15). The docking port (111) is used for inserting the second connecting block. The locking bolt (2) is threadedly connected to the base (11) provided with the first connecting block, and the docking port (111) is located in the length direction of the locking bolt (2). The side wall of the second connecting block is provided with a locking hole (142) for inserting the locking bolt (2).

8. The container stacking twist lock according to claim 7, characterized in that: The base (11) with the first docking block (13) is provided with a threaded hole for threaded insertion of a locking bolt (2), and a sealing layer is provided on the inner wall of the base (11) near the threaded hole.

9. The container stacking twist lock according to claim 7, characterized in that: Among the preset holes (32) on the container corner piece (3), there is a preset hole (32) located in the screwing direction of the locking bolt (2).

10. The container stacking twist lock according to claim 3, characterized in that: Magnetic elements that magnetically attract each other are provided on the surfaces of the first docking block (13) and the second docking block (14).

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