Detachable short column rod assembly and container with same

Abstract

The invention provides a detachable short column rod assembly which is used for being fixed to a top corner piece of a container and comprises a fixing part and a locking part, the fixing part comprises a short column rod and a stacking plate, and a hollow cavity is formed in the short column rod; the stacking plate is arranged at the bottom end of the short column rod, and the stacking plate is provided with a first through hole; the locking part comprises a wedge-shaped block and a spin lock shaft, and the wedge-shaped block is arranged in the hollow cavity of the short column rod; the spin lock shaft comprises a plurality of spin lock pieces which are stacked and connected into a whole, each spin lock piece is provided with a wedge-shaped hole, the multiple wedge-shaped holes jointly form a wedge-shaped channel, the wedge-shaped channel is matched with the wedge-shaped block, and the top end of the spin lock shaft extends into the hollow cavity of the short column rod through the first through hole. The detachable short column rod assembly is rotated so that the bottom end of the spin lock shaft can be clamped to the inner side wall of the vertex angle piece. The detachable short column rod assembly has the advantages that the manufacturing efficiency is high, and the economic cost is saved.

Description

Technical Field

[0001] The present application generally relates to the technical field of platform-type container structures, and more particularly to a detachable short column assembly and a container having the same. Background Art

[0002] At present, the short column in the prior art can usually increase the loading height of the platform container when it is installed on the top of the platform container or the platform box, so that the terminal can realize the hoisting and stacking operation of the heavy-loaded folding box. The detachable short column includes a top corner piece, a stacking plate, a short column, a rotating lock shaft, a wedge block, and a bolt. The problem of the prior art is that the rotating lock shaft has the following disadvantages:

[0003] When the rotary lock shaft adopts the casting process, it is necessary to open the casting mold first. The size deviation of the blank after opening the mold is large and the surface is rough, which still cannot meet the use requirements. In order to ensure the matching accuracy of the wedge block and the rotary lock shaft, the wedge surface of the rotary lock shaft blank that matches the wedge block needs to be machined, so the casting process takes a long time; in addition, the casting process is prone to internal sand holes, air holes and other defects, which will cause the rotary lock shaft to be damaged due to stress concentration caused by internal defects during use.

[0004] When the rotary lock shaft is machined, because the rotary lock shaft is a thick plate, it is necessary to reserve about 8-10mm (millimeter) margin on one side for flame cutting to produce the blank before overall machining. It is necessary to replace different machines and clamp multiple times to complete the machining of the rotary lock shaft; the overall machining cost is 1.5 to 2 times that of casting.

[0005] The height of the commonly used detachable short columns is generally 1ft-6ft (300-1200mm). Short columns of different heights use the same rotary lock shaft. In order to meet the stacking capacity and strength requirements of the rotary lock shaft of the 6ft detachable short column, the rotary lock shaft has a surplus strength at a height of 1ft. However, due to mold limitations, the structural thickness cannot be adjusted at will, and the processing is time-consuming and material-consuming, which increases economic costs.

[0006] Therefore, it is necessary to provide a detachable short column assembly and a container having the same to at least partially solve the above problems. Summary of the invention

[0007] A series of simplified concepts are introduced in the Summary of the Invention section, which will be further described in detail in the Detailed Description of the Invention section. The Summary of the Invention section of this application does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the scope of protection of the claimed technical solution.

[0008] To at least partially solve the above-mentioned problems, according to a first aspect of the present application, a detachable short column assembly is provided, the detachable short column assembly is used to be fixed to the top corner fitting of a container, comprising: a fixing part, the fixing part comprising: a short column, the interior of the short column having a hollow chamber; and a stacking plate, the stacking plate is arranged at the bottom end of the short column, the stacking plate has a first through hole; and a locking part, the locking part comprising: a wedge block, the wedge block is arranged in the hollow chamber of the short column; and a rotary lock shaft, the rotary lock shaft comprises a plurality of rotary lock pieces, the rotary lock pieces are stacked and connected as a whole, each of the rotary lock pieces has a wedge-shaped hole, and the plurality of wedge-shaped holes are jointly constructed into a wedge-shaped channel, the wedge-shaped channel is adapted to the wedge block, the top end of the rotary lock shaft extends into the hollow chamber of the short column through the first through hole, and the detachable short column assembly is rotated so that the bottom end of the rotary lock shaft is clamped on the inner side wall of the top corner fitting.

[0009] Optionally, the top and bottom ends of the rotary lock piece each have a second through hole, and a plurality of the second through holes are connected to form a second channel;

[0010] The detachable short column assembly further includes a metal welding component, and the metal welding component is adapted to the second through hole.

[0011] Optionally, the outer surface of at least one side of the rotary lock piece has a notch opening toward the hollow chamber of the short column rod, and a plurality of the notches are connected to form a notch channel, and the notch channel is suitable for accommodating parts to be welded.

[0012] Optionally, each of the plurality of rotating lock pieces comprises a top end, a bottom end, and a connecting end connected to the top end and the bottom end;

[0013] The outer surfaces of the connecting ends of the two outermost rotating lock pieces among the plurality of rotating lock pieces are both configured as arc-shaped surfaces.

[0014] Optionally, the wedge block is provided with a first threaded hole and a third through hole in sequence from the small end to the large end, the inner diameter of the third through hole is larger than the inner diameter of the first threaded hole, and a shoulder is constructed at the connection position between the third through hole and the first threaded hole;

[0015] The detachable short column assembly also includes a bolt, which passes through the short column and is connected to the first threaded hole.

[0016] Optionally, the detachable short column rod assembly also includes a blocking washer, which is arranged in the third through hole and is suitable for reciprocating motion along the axial direction of the third through hole. The blocking washer is adapted to the tail of the bolt, and the outer diameter of the blocking washer is larger than the inner diameter of the first threaded hole.

[0017] Optionally, the tail portion of the bolt has a second threaded hole extending in the axial direction;

[0018] The detachable short column assembly also includes a fastener adapted to fit in the second threaded hole.

[0019] Optionally, the detachable short column rod assembly further comprises a slat, wherein the slat passes through the wedge-shaped channel of the rotary lock shaft, and the slat is tightly disposed between the stacking plate and the wedge-shaped channel.

[0020] Optionally, the stacking plates are detachably connected to the slats.

[0021] Optionally, one side of the short column has an opening, and the opening constitutes an entrance of the wedge-shaped channel for the wedge-shaped block to be inserted; and

[0022] The detachable short column rod assembly also includes a side sealing plate, and the side sealing plate covers the opening.

[0023] Optionally, the detachable short column assembly further comprises an upper end sealing plate, which is disposed at the upper end of the hollow chamber of the short column and is suitable for preventing the rotary lock shaft from moving vertically along the short column.

[0024] According to a second aspect of the present application, there is also provided a container, comprising the above-mentioned detachable short column assembly.

[0025] Compared with the prior art, the detachable short column assembly of the present application has the following beneficial effects:

[0026] The present application changes the rotary lock shaft from the integral type in the prior art to a structure composed of multiple rotary lock pieces stacked and connected as one, so that the number of rotary lock pieces of the detachable short column rod assembly of the present application can be appropriately increased or decreased according to its own height, and the top end of the rotary lock shaft is extended into the hollow chamber in the short column rod through the first through hole of the stacking plate, and at the same time, the wedge block is inserted into the wedge-shaped channel, so that the wedge block and the wedge-shaped channel are adapted, so that the rotary lock shaft will not fall down from the hollow chamber in the short column rod under the support of the wedge block, and in order to realize the detachable connection between the detachable short column rod assembly of the present application and the top corner piece, the detachable short column rod assembly of the present application is rotated so that the bottom end of the rotary lock shaft is clamped on the inner side wall of the top corner piece. In this way, the detachable short column rod assembly of the present application can be fixed and installed on the top corner piece of the container. The rotary lock shaft in the detachable short column rod assembly of the present application is composed of multiple rotary lock plates stacked and connected as a whole. When the rotary lock plates are manufactured, they can be directly stamped into shape. Compared with the casting or machining methods in the prior art, the processing time is effectively shortened, the processing efficiency is effectively improved, and the economic cost is greatly saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The following drawings of the embodiments of the present application are hereby used as part of the present application for understanding the present application. The drawings show the embodiments of the present application and their descriptions, and are used to explain the principles of the present application. In the drawings,

[0028] Figure 1 It is a schematic diagram of the overall structure in which the top end of a detachable short column rod assembly is connected to a top corner piece according to a preferred embodiment of the present application;

[0029] Figure 2 It is a schematic diagram of the internal structure of a detachable short column rod assembly according to a preferred embodiment of the present application;

[0030] Figure 3 It is a schematic diagram of the split structure of a detachable short column rod assembly according to a preferred embodiment of the present application;

[0031] Figure 4 for Figure 2 The overall structural diagram of the rotary lock shaft;

[0032] Figure 5 for Figure 4 A schematic diagram of the front view structure of

[0033] Figure 6 for Figure 5 Schematic diagram of CC cross-section structure in;

[0034] Figure 7It is a structural schematic diagram of a detachable short column assembly installed on a cargo platform of a desktop container according to a preferred embodiment of the present application;

[0035] Figure 8 It is a schematic structural diagram of a detachable short column rod assembly installed on a platform box according to a preferred embodiment of the present application.

[0036] Reference numerals:

[0037] 200: container; 201: platform container; 202: platform container; 203: top corner piece; 100: detachable short column assembly; 101: fixed part; 102: short column; 102a: hollow chamber; 102b: opening; 103: stacking plate; 111: wedge block; 111a: first threaded hole; 111b: third through hole; 111c: shoulder; 112: rotary lock shaft; 112a: rotary lock plate; 112b: wedge hole; 112c: wedge channel; 112d: top of rotary lock shaft 112 ; 112e: the bottom end of the turn lock shaft 112; 112f: the metal welding part; 113: the second through hole; 114: the second channel; 115: the notch; 116: the notch channel; 117: the top end of the turn lock plate 112a; 118: the bottom end of the turn lock plate 112a; 119: the connecting end of the turn lock plate 112a; 119a: the arc surface; 120: the bolt; 120a: the tail of the bolt 120; 120b: the second threaded hole; 120c: the fastener; 121: the blocking gasket; 122: the slat; 123: the side sealing plate. DETAILED DESCRIPTION

[0038] In the following description, a large number of specific details are provided to provide a more thorough understanding of the present application. However, it is obvious to those skilled in the art that the present application embodiments can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present application embodiments, some technical features well known in the art are not described.

[0039] In order to fully understand the implementation of the present application, a detailed structure will be presented in the following description. Obviously, the implementation of the implementation of the present application is not limited to the specific details familiar to those skilled in the art.

[0040] like Figures 1 to 8 As shown, the present application provides a detachable short column assembly 100, which is installed on a container 200, and the container 200 includes a platform container 201 and a platform container 202. The installation of the detachable short column assembly 100 effectively improves the cargo loading rate of the container 200.

[0041] like Figures 1 to 8As shown, the detachable short column assembly 100 according to the present application includes a fixing portion 101 and a locking portion (not shown in the figure).

[0042] The fixed part 101 includes a short column 102 and a stacking plate 103. The short column 102 has a hollow chamber 102a therein.

[0043] The stacking plate 103 is disposed at the bottom end of the short column rod 102, and the stacking plate 103 has a first through hole (not shown in the figure).

[0044] The locking part includes a wedge block 111 and a rotary lock shaft 112 . The wedge block 111 is disposed in the hollow chamber 102 a of the short column rod 102 .

[0045] The rotary lock shaft 112 includes a plurality of rotary lock plates 112a, which are stacked and connected as a whole. Each rotary lock plate 112a has a wedge-shaped hole 112b. The plurality of wedge-shaped holes 112b together form a wedge-shaped channel 112c. The wedge-shaped channel 112c is adapted to the wedge block 111. The top end 112d of the rotary lock shaft 112 extends into the hollow chamber 102a of the short column rod 102 through the first through hole. The detachable short column rod assembly 100 is rotated so that the bottom end 112e of the rotary lock shaft 112 is clamped on the inner wall of the top angle piece 203. The present invention changes the rotary lock shaft 112 into a structure composed of multiple rotary lock pieces 112a stacked and connected as one body, compared with the integral type in the prior art, so that the detachable short column rod assembly 100 of the present invention can appropriately increase or decrease the number of the rotary lock pieces 112a according to its own height, and the top end 112d of the rotary lock shaft 112 is extended into the hollow chamber 102a in the short column rod 102 through the first through hole on the stacking plate 103, and at the same time, the wedge block 111 is inserted into the wedge The wedge block 111 is inserted into the channel 112c, thereby achieving the adaptation between the wedge block 111 and the wedge channel 112c. In this way, the rotary lock shaft 112 will not fall downward from the hollow chamber 102a in the short column 102 under the support of the wedge block 111. In order to achieve the detachable connection between the detachable short column assembly 100 of the present application and the top corner fitting 203, the detachable short column assembly 100 of the present application is rotated so that the bottom end 112e of the rotary lock shaft 112 is clamped on the inner side wall of the top corner fitting 203. In this way, the detachable short column assembly 100 of the present application can be fixed and installed on the top corner fitting 203 of the container 200. The rotary lock shaft 112 in the detachable short column rod assembly 100 of the present application is composed of multiple rotary lock plates 112a stacked and connected as a whole. When the rotary lock plates 112a are manufactured, they can be directly stamped and formed. Compared with the casting or machining methods in the prior art, the processing time is effectively shortened, the processing efficiency is effectively improved, and the economic cost is greatly saved.

[0046] like Figures 1 to 6As shown, in some preferred embodiments of the present application, the top end 112d and the bottom end 112e of the rotation lock piece 112a both have a second through hole 113 , and a plurality of second through holes 113 are connected to form a second channel 114 .

[0047] The detachable short column assembly 100 also includes a metal welding component 112f, which is adapted to the second through hole 113. The second through hole 113 is configured at the top end 112d and the bottom end 112e of the rotary lock piece 112a, and the metal welding component 112f is installed in the second through hole 113. By adopting a plug welding connection method, multiple rotary lock pieces 112a can be connected as one, and the integrity of the structure of the rotary lock shaft 112 is guaranteed while reducing the amount of welding.

[0048] Preferably, the material of the metal welding component 112f can be steel or iron.

[0049] like Figures 3 to 5 As shown, in some preferred embodiments of the present application, the outer surface of at least one side of the rotating lock piece 112a has a notch 115 opening toward the hollow chamber 102a of the short column 102, and a plurality of notches 115 are connected to form a notch channel 116, and the notch channel 116 is suitable for accommodating the components to be welded (not shown in the figure). In order to further enhance the connection strength between the various rotating lock pieces 112a and ensure the integrity of the connection of the various rotating lock pieces 112a, by having a notch 115 opening toward the hollow chamber 102a of the short column 102 on the outer surface of at least one side of each rotating lock piece 112a, when the plurality of rotating lock pieces 112a are stacked and connected as one, the plurality of notches 115 will be connected to form a notch channel 116, so that by accommodating the components to be welded in the notch channel 116, the components to be welded can be connected to the various rotating lock pieces 112a as one body by welding, thereby achieving the purpose of further enhancing the connection strength between the various rotating lock pieces 112a.

[0050] Preferably, the material of the parts to be welded can be steel or iron.

[0051] The rotary lock shaft 112 of the present application is manufactured by stacking and assembling a plurality of single-piece rotary lock pieces 112a. First, a single-piece rotary lock piece 112a for blanking is punched out by a blanking die. After blanking, two or more rotary lock pieces 112a are stacked and assembled. Afterwards, the wedge-shaped channel 112c that needs to cooperate with the wedge block 111 and the arc surface 119a on the connecting end 119 described below are machined. Finally, the surface of the processed detachable short column assembly 100 is sprayed with paint to prevent the detachable short column assembly 100 from rusting. The stacking combination and blanking manufacturing process greatly shortens the manufacturing cycle of the rotary lock shaft 112, thereby reducing the manufacturing cost of the detachable short column assembly 100 of the present application, and effectively avoids the internal defects of the detachable short column assembly 100 generated during the manufacturing process.

[0052] Optionally, for detachable short column rod assemblies 100 of different heights, the number of the rotary lock pieces 112a can be adjusted to produce rotary lock shafts 112 of different thicknesses, thereby meeting different strength requirements.

[0053] It should be noted that the vertical height range of the detachable short column assembly 100 of the present application is greater than or equal to 300 mm and less than or equal to 1200 mm. The present application can set a corresponding number of rotating lock pieces 112a according to the different heights of the detachable short column assembly 100.

[0054] It should also be noted that the higher the height of the detachable short column assembly 100 is, the more the number of the rotary lock pieces 112 a in the rotary lock shaft 112 is.

[0055] like Figure 3 and 5 As shown, in some preferred embodiments of the present application, the plurality of twist lock pieces 112 a each include a top end 117 , a bottom end 118 , and a connecting end 119 connected to the top end 117 and the bottom end 118 .

[0056] The outer surfaces of the connecting ends 119 of the two outermost rotating lock pieces 112a among the plurality of rotating lock pieces 112a are both configured as arcuate surfaces 119a. By configuring the outer surfaces of the connecting ends 119 as arcuate surfaces 119a, when adapted to the top corner piece 203, the rotating lock shaft 112 can be ensured to rotate smoothly, and the rotating lock shaft 112 can be prevented from getting stuck during rotation.

[0057] like Figure 3As shown, in some preferred embodiments of the present application, the interior of the wedge block 111 is provided with a first threaded hole 111a and a third through hole 111b in sequence from the small end to the large end, the inner diameter of the third through hole 111b is larger than the inner diameter of the first threaded hole 111a, and a shoulder 111c is constructed at the connecting portion between the third through hole 111b and the first threaded hole 111a.

[0058] The detachable short column assembly 100 further includes a bolt 120 , which passes through the short column 102 and is connected to the first threaded hole 111 a . After passing through the short column 102 , the bolt 120 is connected to the first threaded hole 111 a to achieve a fixed connection between the bolt 120 and the wedge block 111 .

[0059] like Figure 3 As shown, in order to further optimize the technical solution in the above embodiment, in some preferred embodiments of the present application, the detachable short column assembly 100 further includes a blocking washer 121, which is disposed in the third through hole 111b and is suitable for reciprocating along the axial direction of the third through hole 111b. When the blocking washer 121 is adapted to the tail 120a of the bolt 120, the outer diameter of the blocking washer 121 is greater than the inner diameter of the first threaded hole 111a. The setting of the blocking washer 121 can prevent the tail 120a of the bolt 120 from moving radially in the third through hole 111b and completely escaping from the wedge block 111.

[0060] like Figure 3 As shown, in order to further optimize the technical solution of the above embodiment, in some preferred embodiments of the present application, the tail portion 120a of the bolt 120 has a second threaded hole 120b extending in the axial direction.

[0061] The detachable short column assembly 100 further includes a fastener 120c, which is adapted to the second threaded hole 120b. After the bolt 120 is inserted into the first threaded hole 111a and the third through hole 111b in sequence, a blocking washer 121 is arranged between the fastener 120c and the bolt 120. When the bolt 120 needs to be withdrawn from the wedge block 111, the blocking washer 121 will move axially in the third through hole 111b toward the shoulder 111c. When the blocking washer 121 moves to engage with the shoulder 111c, the bolt 120 cannot be completely withdrawn from the wedge block 111, and the wedge block 111 and the rotary lock shaft 112 will not fall off from the short column 102, thereby preventing the bolt 120, the wedge block 111 and the rotary lock shaft 112 from being lost.

[0062] It should be noted that in order to achieve the anti-loss effect, there are many other methods to achieve it, such as adding a nut to the outer end of the tail 120a of the bolt 120, and adding a gasket if necessary; for example, the tail 120a of the bolt 120 is configured with a through hole perpendicular to the axis, and a pin is passed through the through hole, and a gasket is added if necessary; for example, a stopper is added to the tail 120a of the bolt 120 by riveting, welding or bonding, etc. The above-mentioned methods are all for the purpose of preventing the bolt 120 from being completely withdrawn from the wedge block 111, thereby achieving the anti-loss effect.

[0063] like Figure 2 and Figure 3 As shown, in some preferred embodiments of the present application, the detachable short column assembly 100 further includes a slat 122, which passes through the wedge-shaped channel 112c of the rotary lock shaft 112, and the slat 122 is tightly arranged between the stacking plate 103 and the wedge-shaped channel 112c. The rotary lock shaft 112 will be restricted by the slat 122 to ensure that the rotary lock shaft 112 will not fall out of the hollow chamber 102a of the short column 102.

[0064] In order to further optimize the technical solution of the above embodiment, in some preferred embodiments of the present application, the stacking plate 103 is detachably connected to the slat 122. Specifically, a first connecting through hole (not shown in the figure) is constructed on the stacking plate 103, and a second connecting through hole is correspondingly constructed on the slat 122. When the slat 122 is placed on the top surface of the stacking plate 103, the first connecting through hole is correspondingly connected to the second connecting through hole, and bolts or rivets are used to fit the first connecting through hole and the second connecting through hole, so as to realize the detachable connection between the slat 122 and the stacking plate 103.

[0065] like Figure 1 and Figure 3 As shown, in some preferred embodiments of the present application, one side of the short column rod 102 has an opening 102b, and the opening 102b constitutes the entrance of the wedge-shaped channel 112c for the wedge block 111 to be inserted.

[0066] The detachable short column assembly 100 further includes a side sealing plate 123, which covers the opening 102b. The side sealing plate 123 can be clamped at the opening 102b of the short column 102 through a rubber clamping block, thereby forming a blockage for the opening 102b.

[0067] like Figure 7 and Figure 8 As shown, according to the second aspect of the present application, a container 200 is further provided. The container 200 includes the detachable short column assembly 100 described in the above embodiment.

[0068] In summary, the present invention changes the rotary lock shaft 112 from the integral type in the prior art to a structure in which a plurality of rotary lock pieces 112a are stacked and connected as one, so that the detachable short column rod assembly 100 of the present invention can appropriately increase or decrease the number of the rotary lock pieces 112a according to its own height, and the top end 112d of the rotary lock shaft 112 is extended into the hollow chamber 102a in the short column rod 102 through the first through hole on the stacking plate 103, and at the same time, the wedge block 111 is inserted into the stacking plate 103. The wedge block 111 is inserted into the wedge-shaped passage 112c, so that the wedge block 111 is adapted to the wedge-shaped passage 112c. In this way, the rotary lock shaft 112 will not fall downward from the hollow chamber 102a in the short column 102 under the support of the wedge block 111. To achieve the detachable connection between the detachable short column assembly 100 of the present application and the top corner fitting 203, the detachable short column assembly 100 of the present application is rotated so that the bottom end 112e of the rotary lock shaft 112 is clamped on the inner side wall of the top corner fitting 203. In this way, the detachable short column assembly 100 of the present application can be fixed and installed on the top corner fitting 203 of the container 200. The rotary lock shaft 112 in the detachable short column rod assembly 100 of the present application is composed of multiple rotary lock plates 112a stacked and connected as a whole. When the rotary lock plates 112a are manufactured, they can be directly stamped and formed. Compared with the casting or machining methods in the prior art, the processing time is effectively shortened, the processing efficiency is effectively improved, and the economic cost is greatly saved.

[0069] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art in the technical field of this application. The terms used herein are only for describing specific implementation purposes and are not intended to limit this application. Terms such as "setting" appearing in this article can mean that one component is directly attached to another component, or that one component is attached to another component through an intermediate. Features described in this article in one embodiment may be applied to another embodiment alone or in combination with other features, unless the feature is not applicable in the other embodiment or otherwise specified.

[0070] The present application has been described through the above-mentioned embodiments, but it should be understood that the above-mentioned embodiments are only for the purpose of example and description, and are not intended to limit the present application to the described embodiments. It can be understood by those skilled in the art that more variations and modifications can be made according to the teachings of the present application, and these variations and modifications all fall within the scope of protection claimed in the present application.

Claims

1. A detachable short column assembly, the detachable short column assembly is used to be fixed to the top corner piece of a container, characterized in that: include: A fixed part, the fixed part comprising: a short pole having a hollow chamber therein; and A stacking plate, the stacking plate being arranged at the bottom end of the short column rod, the stacking plate having a first through hole; and A locking portion, the locking portion comprising: a wedge-shaped block, the wedge-shaped block being disposed in the hollow chamber of the short column; and The rotary lock shaft comprises a plurality of rotary lock plates, which are stacked and connected as a whole, each of which has a wedge-shaped hole, and the plurality of wedge-shaped holes together form a wedge-shaped channel, and the wedge-shaped channel is adapted to the wedge block, and the top end of the rotary lock shaft extends into the hollow chamber of the short column rod through the first through hole, and the detachable short column rod assembly is rotated so that the bottom end of the rotary lock shaft is clamped on the inner wall of the top corner piece.

2. The detachable short column assembly according to claim 1, characterized in that: The top and bottom ends of the rotating lock plate are each provided with a second through hole, and a plurality of the second through holes are butted and connected to form a second channel; The detachable short column assembly further includes a metal welding component, and the metal welding component is adapted to the second through hole.

3. The detachable short column assembly according to claim 1, characterized in that: The outer surface of at least one side of the rotation lock piece has a notch opening toward the hollow chamber of the short column rod, and a plurality of the notches are connected to form a notch channel, and the notch channel is suitable for accommodating components to be welded.

4. The detachable short column assembly according to claim 1, characterized in that: Each of the plurality of rotating lock pieces comprises a top end, a bottom end, and a connecting end connected to the top end and the bottom end; The outer surfaces of the connecting ends of the two outermost rotating lock pieces among the plurality of rotating lock pieces are both configured as arc-shaped surfaces.

5. The detachable short column assembly according to claim 1, characterized in that: The wedge block is provided with a first threaded hole and a third through hole in sequence from the small end to the large end, the inner diameter of the third through hole is larger than the inner diameter of the first threaded hole, and a shoulder is constructed at the connection portion between the third through hole and the first threaded hole; The detachable short column assembly also includes a bolt, which passes through the short column and is connected to the first threaded hole.

6. The detachable short column assembly according to claim 5, characterized in that: The detachable short column rod assembly also includes a blocking washer, which is arranged in the third through hole and is suitable for reciprocating motion along the axial direction of the third through hole. The blocking washer is adapted to the tail of the bolt, and the outer diameter of the blocking washer is larger than the inner diameter of the first threaded hole.

7. The detachable short column assembly according to claim 6, characterized in that: The tail portion of the bolt has a second threaded hole extending in the axial direction; The detachable short column assembly also includes a fastener adapted to fit in the second threaded hole.

8. The detachable short column assembly according to claim 1, characterized in that: The detachable short column rod assembly also includes a slat, which passes through the wedge-shaped channel of the rotary lock shaft, and the slat is tightly arranged between the stacking plate and the wedge-shaped channel.

9. The detachable short column assembly according to claim 8, characterized in that: The stacking plates are detachably connected to the slats.

10. The detachable short column assembly according to claim 1, characterized in that: One side of the short column has an opening, and the opening constitutes the entrance of the wedge-shaped channel for the wedge-shaped block to be inserted; and The detachable short column rod assembly also includes a side sealing plate, and the side sealing plate covers the opening.

11. The detachable short column assembly according to claim 1, characterized in that: The detachable short column assembly also includes an upper end sealing plate, which is arranged at the upper end of the hollow chamber of the short column and is suitable for preventing the rotary lock shaft from moving vertically along the short column.

12. A container, characterized in that: It comprises a detachable short column assembly according to any one of claims 1 to 11.

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