A corner piece and a column detachably mounting the corner piece

By using a detachable connection scheme between the end fittings and the column, the problems of difficulty in disassembly and low adaptability of traditional connection methods are solved, achieving compatibility in transportation and construction and stability of the building structure.

CN224590509UActive Publication Date: 2026-08-04SUZHOU ZERO CARBON TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU ZERO CARBON TECHNOLOGY CO LTD
Filing Date
2025-10-10
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

In existing technologies, the connection method of prefabricated modules is difficult to disassemble without damage, and traditional standard container corner fittings cannot meet the rigid splicing requirements of the construction stage, affecting the stability of the building structure and construction efficiency.

Method used

Design a detachable connection scheme between corner fittings and columns. By using connecting plugs to cooperate with the hollow structure of the column, the corner fittings and columns can be detachably assembled, meeting container transportation standards and adapting to building construction connection requirements.

Benefits of technology

It enables the detachable installation of end corner pieces and columns, improving transportation adaptability and construction efficiency, and ensuring the stability of the building structure and the flexibility of connections.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model provides a corner bracket and a column with a detachable corner bracket, comprising: a body and a connecting plug connected to the body; the body is a cubic structure with an internal cavity, and lifting holes are provided on its top and at least one side wall, the lifting holes communicating with the internal cavity of the body; the connecting plug includes at least two connecting parts, each with multiple mounting holes, and the top end face of the connecting plug is fixedly connected to the bottom end face of the body. This utility model achieves detachable assembly of the corner bracket and the column by using a connecting plug to connect with the column and utilizing the hollow structure at the end of the column; this technical solution meets both container transportation standards and the connection requirements of building construction, effectively solving the technical problems of inconvenient assembly and disassembly and low adaptability of traditional corner brackets and columns.
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Description

Technical Field

[0001] This utility model relates to the field of modular building technology, and in particular to a corner piece and a column with a detachable corner piece. Background Technology

[0002] With the development of industrialized construction, modular buildings have been widely used due to their advantages such as high construction efficiency and low pollution. However, the transport adaptability of prefabricated modules and the reliability of on-site construction connections have always been pain points in the industry.

[0003] In existing technologies, the transportation of prefabricated modules relies on a mature container transportation system (such as lifting equipment and loading space for sea and land transportation). Therefore, standard container corner fittings are commonly used to lift and fix the modules. However, these standard container corner fittings have two major drawbacks: First, the connection method with prefabricated building modules (especially core load-bearing components such as columns) is mostly welding or one-time bolt fastening, which makes it difficult to disassemble without damage. If the module structure needs to be adjusted or the connecting parts need to be replaced after transportation to the site, the original connection structure often needs to be damaged, which not only increases construction costs but also extends the construction period. Second, its interface design is only for transportation scenarios and cannot be directly adapted to the rigid splicing requirements between modules in the construction stage. Additional welding adapters are required on site to achieve module connection, which reduces construction efficiency and is prone to stress concentration due to transition connection problems of the adapter structure, affecting the overall structural stability of the building. Utility Model Content

[0004] To address all or part of the problems in the prior art, this utility model provides an end corner piece and a column with a detachable end corner piece. By setting a connecting plug to connect with the column, and utilizing the hollow structure at the end of the column, the end corner piece and the column can be detachably assembled. This technical solution not only meets the standards for container transportation but also adapts to the connection requirements of building construction, effectively solving the technical problems of inconvenient disassembly and assembly and low adaptability of traditional end corner pieces and columns.

[0005] To achieve the above objectives, this utility model provides the following technical solution: An end cap includes a body and a connector plug connected to the body. The main body is a cubic structure with an internal cavity, and a lifting hole is provided on its top and at least one side wall, the lifting hole communicating with the internal cavity of the main body; The connector includes at least two connecting parts, each having multiple mounting holes, and the top end face of the connector is fixedly connected to the bottom end face of the main body.

[0006] The connecting part is a long strip-shaped mounting plate, and the connecting plug includes a first connecting part and a second connecting part, which are perpendicularly connected to the bottom end face of the body at a 90-degree angle.

[0007] The connecting plug also includes a reinforcing part, which is connected between the first connecting part and the second connecting part.

[0008] The reinforcing part is a triangular plate, one end of which is fixedly connected to the first connecting part, and the other end is fixedly connected to the second connecting part.

[0009] The main body is a standard corner piece for containers, and the lifting holes are provided on two adjacent side walls, namely the first side wall and the second side wall.

[0010] The first connecting portion is arranged parallel to the first sidewall, and the second connecting portion is arranged parallel to the second sidewall.

[0011] The connecting part is a long strip mounting plate, and the connecting plug includes four connecting parts. The four connecting parts enclose a hollow column structure with a rectangular cross-section, and the hollow column structure is provided with a reinforcing part inside.

[0012] The connecting part is an L-shaped integrally molded mounting plate, which is connected to the bottom end face of the main body, and a reinforcing part is provided between the two connecting parts.

[0013] This utility model also provides a column with detachable corner brackets, including a column and corner brackets as described above. The ends of the column are hollow, and multiple mounting holes are provided on the side walls at both the top and bottom ends. The end fitting includes a body and a connecting plug connected to the body. The connecting plug is an insertion structure adapted to the hollow structure of the column, and its outer peripheral dimension is smaller than the inner cavity dimension of the column, so as to be adapted to be inserted into the end of the column. The connecting plug has a mounting through hole corresponding to the position of the column mounting hole, and the column and the end corner piece are detachably installed through the connector.

[0014] The ratio of the height of the connector inserted into the end of the column to the height of the column is 5%-10%. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the specific embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a first-view structural schematic diagram of an end corner piece according to Embodiment 1 of this utility model.

[0017] Figure 2 This is a second-view structural diagram of an end corner piece according to Embodiment 1 of this utility model.

[0018] Figure 3 This is a side view of an end corner piece according to Embodiment 1 of this utility model.

[0019] Figure 4 This is a bottom view of an end corner piece according to Embodiment 1 of this utility model.

[0020] Figure 5 This is a schematic diagram of the structure of a column with detachable end corner fittings according to Embodiment 2 of this utility model.

[0021] Reference numerals: 1. Body; 2. Connecting plug; 201. First connecting part; 202. Second connecting part; 203. Reinforcing part; 3. Column. Detailed Implementation

[0022] The technical solutions in specific embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] Example 1 This embodiment discloses an end cap, aiming to provide a multifunctional connecting component that can adapt to container transportation standards and reliably connect with building structures. Its specific structure is described in conjunction with reference to... Figures 1 to 4 As shown.

[0024] The corner fitting includes a body 1 and a connecting plug 2, wherein the body 1 is the core load-bearing component, and the connecting plug 2 is used to achieve precise docking between the body 1 and the building structure. Specifically, the body 1 is designed as a cubic structure with an internal cavity, and lifting holes are provided on its top end face and at least one side wall, and each lifting hole is interconnected with the internal cavity of the body 1; this structural design allows the body 1 to be adapted to lifting equipment in container transportation (such as crane locks that are inserted into the lifting holes and locked with the cavity), and also reduces its own weight while ensuring structural strength through the cavity structure.

[0025] The connecting plug 2 includes at least two connecting parts, each of which is a long strip mounting plate with multiple mounting holes spaced apart along its length for fixing to the building structure by fasteners (such as bolts or pins); the top end face of the connecting plug 2 is fixedly connected to the bottom end face of the body 1 by welding or integral molding to ensure the structural strength of the connection between the two.

[0026] In a preferred embodiment, the connecting plug 2 includes a first connecting part 201 and a second connecting part 202, which are perpendicularly distributed at 90 degrees and connected together to the bottom end face of the body 1, forming a connection shape adapted to the right-angle structure of the building. To enhance the torsional strength between the first connecting part 201 and the second connecting part 202, the connecting plug 2 also includes a reinforcing part 203, which is a triangular plate structure. One end of the reinforcing part 203 is fixedly connected to the side wall of the first connecting part 201, and the other end is fixedly connected to the side wall of the second connecting part 202. The stability characteristics of the triangle are used to distribute the load and prevent the connecting part from deforming under stress.

[0027] Furthermore, the main body 1 adopts standard corner fittings for containers, and lifting holes are provided on its two adjacent side walls (defined as the first side wall and the second side wall) to accommodate lifting requirements in different directions; correspondingly, the first connecting part 201 is arranged parallel to the first side wall of the main body 1, and the second connecting part 202 is arranged parallel to the second side wall of the main body 1, so that the force direction of the connecting plug 2 is consistent with the lifting force direction of the main body 1, thereby improving the overall load-bearing capacity.

[0028] In another embodiment, the connecting plug 2 includes four connecting parts, which together form a hollow column 3 structure with a rectangular cross-section. Its outer dimensions are adapted to the hollow structure of the building column 3, allowing for omnidirectional contact with the column 3 via an insert connection. Each connecting part has mounting holes to ensure multi-point fixation to the column 3. To further enhance the overall rigidity and torsional resistance of the hollow column 3 structure, a reinforcing part 203 is provided inside the hollow column 3 structure. Its specific form can be designed according to the stress requirements. For example, the reinforcing part 203 can be a cross-shaped reinforcing rib, with its four ends fixedly connected to the inner walls of the four connecting parts (e.g., by welding); the reinforcing part 203 can be a diagonal reinforcing rod, with both ends fixedly connected to the corners of the inner walls of two opposite connecting parts, forming an "X"-shaped internal support; the reinforcing part 203 can also be a rectangular reinforcing plate, with its sidewalls fitted and fixed to the inner wall of the hollow column 3.

[0029] In addition, the connecting part can also be set as an L-shaped integral molding mounting plate, with its two vertical sides corresponding to the connection requirements in different directions. The L-shaped mounting plate is connected to the bottom end face of the body 1, and a reinforcing part 203 (such as a rectangular rib) is set between two adjacent L-shaped connecting parts to further improve the overall rigidity of the connecting plug 2.

[0030] It should be noted that the specific form of the connecting plug 2 is not limited. In addition to the above structure, it can also be adapted to the actual scenario such as the cross-sectional shape of the building column 3 (such as circle or polygon), connection strength requirements and installation space limitations. As long as it can achieve a stable connection with the body 1 and a reliable fit with the building structure, it is within the protection scope of this utility model.

[0031] The corner fitting in this embodiment is designed with multi-form connecting plugs 2, which can not only meet the standardized requirements of container transportation through the main body 1, but also flexibly adapt to the connection needs of different building structures, so as to achieve functional compatibility between transportation and construction.

[0032] Example 2 This embodiment discloses a column with detachable corner brackets, aiming to solve the problem that traditional building columns and corner brackets have fixed connection methods, making them difficult to adapt to changes in transportation and construction scenarios. Its structure is combined with reference to... Figures 1 to 5 As shown, it specifically includes a column 3 and an end corner piece as described in Example 1.

[0033] Column 3 is a vertical load-bearing component in the building structure. Its ends are processed into a hollow structure (it can be set as a hollow column 3 as a whole). Multiple mounting holes are opened on the side walls at both ends of column 3. The mounting holes are evenly distributed around the circumference of column 3 and are used to cooperate with the end corner pieces to achieve fixation.

[0034] The corner fitting includes a body 1 and a connecting plug 2 (structural details are the same as in Embodiment 1). The connecting plug 2 is designed as an insertion structure adapted to the hollow structure at the end of the column 3. Its outer circumference is slightly smaller than the inner cavity size of the column 3 (the gap is controlled within a preset range, such as 1mm~2mm), to ensure that it can be smoothly inserted into the end of the column 3 while avoiding excessive shaking after insertion. The connecting plug 2 has mounting through holes that correspond one-to-one with the mounting holes of the column 3. When the connecting plug 2 is inserted into the end of the column 3 to a preset depth, the mounting through holes and the mounting holes of the column 3 are precisely aligned. A connecting component (such as a bolt or pin) passes through both to achieve detachable fixation, facilitating quick disassembly and replacement of the corner fitting.

[0035] To balance connection strength and the load-bearing safety of column 3, the ratio of the height of the connector 2 inserted into the end of column 3 (i.e., insertion depth) to the overall height of column 3 is set to 5%-10%. This ratio design ensures both the contact area between connector 2 and column 3, guaranteeing connection stability (avoiding loosening during transportation or construction), and prevents excessive insertion from causing stress concentration in the internal structure of column 3, thus ensuring the overall load-bearing performance of column 3.

[0036] In this embodiment, the column 3, in conjunction with the corner brackets of embodiment 1, enables the detachable installation of the corner brackets. This allows for both the installation of transport corner brackets to meet container standards during the transportation phase and the replacement of dedicated corner brackets with them during the construction phase to adapt to building splicing requirements, effectively improving the scenario adaptability of the building structure.

[0037] It should be noted that, for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the scope of protection of the claims of this utility model.

Claims

1. An end corner piece, characterized in that, It includes a main body (1) and a connecting plug (2) connected to the main body (1); The main body (1) is a cubic structure with an internal cavity, and a lifting hole is provided on its top and at least one side wall, the lifting hole communicating with the internal cavity of the main body (1); The connecting plug (2) includes at least two connecting parts, and the connecting parts are provided with multiple mounting holes. The top end face of the connecting plug (2) is fixedly connected to the bottom end face of the body (1).

2. The corner piece of claim 1, wherein, The connecting part is a long strip mounting plate, and the connecting plug (2) includes a first connecting part (201) and a second connecting part (202), which are perpendicularly connected to the bottom end face of the body (1) at a 90-degree angle.

3. The corner piece of claim 2, wherein, The connecting plug (2) further includes a reinforcing part (203), which is connected between the first connecting part (201) and the second connecting part (202).

4. The corner piece of claim 3, wherein, The reinforcing part (203) is a triangular plate, one end of which is fixedly connected to the first connecting part (201), and the other end is fixedly connected to the second connecting part (202).

5. The corner piece of claim 2, wherein, The main body (1) is a standard corner piece for containers, and the lifting holes are provided on its two adjacent side walls, namely the first side wall and the second side wall.

6. The corner piece according to claim 5, characterized in that, The first connecting part (201) is arranged parallel to the first side wall, and the second connecting part (202) is arranged parallel to the second side wall.

7. The corner piece of claim 1, wherein, The connecting part is a long strip mounting plate. The connecting plug (2) includes four connecting parts. The four connecting parts enclose a hollow column (3) structure with a rectangular cross-section. The hollow column (3) structure is provided with a reinforcing part (203).

8. The corner piece of claim 1, wherein, The connecting part is an L-shaped integrally formed mounting plate, which is connected to the bottom end face of the body (1), and a reinforcing part (203) is provided between the two connecting parts.

9. A column with a detachably mounted end corner piece, characterized in that Includes a column (3) and an end corner piece as described in any one of claims 1-8; The end of the column (3) is a hollow structure, and multiple mounting holes are opened on the side walls at its upper and lower ends respectively; The end fitting includes a body (1) and a connecting plug (2) connected to the body (1). The connecting plug (2) is an insertion structure adapted to the hollow structure of the column (3). Its outer circumferential size is smaller than the inner cavity size of the column (3) so as to be adapted to be inserted into the end of the column (3). The connecting plug (2) has an installation through hole corresponding to the mounting hole position of the column (3), and the column (3) and the end corner piece are detachably installed through the connector.

10. The column of claim 9, wherein, The ratio of the height of the connector (2) inserted into the end of the column (3) to the height of the column (3) is 5%-10%.