Hollow special-shaped profile and stand column structure

The hollow special-shaped profile with internal ribs and triangular prism reinforcement addresses the weight and cost issues of traditional profiles by enhancing strength and stability through innovative assembly and mounting designs, enabling efficient and lightweight column structures.

CN119146342APending Publication Date: 2024-12-17CRRC TANGSHAN CO LTD +1
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202411366385.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-09-29
Publication Date
2024-12-17

AI Technical Summary

Technical Problem

Existing hollow profiles rely on increased wall thickness for strength, leading to increased weight, production costs, and logistical challenges, while compromising ease of assembly and compliance with lightweight design trends.

Method used

A hollow special-shaped profile with internal reinforcing ribs and a reinforcing body forming a triangular prism structure, featuring assembly parts and mounting portions to enhance strength and stability without increasing thickness, along with column structures using these profiles for flexible assembly.

Benefits of technology

The solution reduces material consumption, weight, and production costs while maintaining or improving strength and assembly efficiency, forming stable and rigid column structures suitable for various applications.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119146342A_ABST
    Figure CN119146342A_ABST
Patent Text Reader

Abstract

The invention relates to the technical field of profile structures, in particular to a hollow special-shaped profile and a stand column structure.The special-shaped profile comprises a hollow profile body, a plurality of reinforcing ribs are arranged in the profile body to divide the interior of the profile body into a plurality of cavities, and a reinforcing body is arranged on at least one side of the profile body; the reinforcing body is arranged in the length direction of the sectional material body, the side face of the sectional material body serves as the bottom face of the reinforcing body, and two intersecting inclined faces are arranged on the bottom face to form a triangular prism structure. The method is used for solving the technical problem that the strength and rigidity of the profile are not enough before the hollow profile is thickened.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The invention relates to the technical field of profile structures, and in particular to a hollow special-shaped profile and a column structure. Background Art

[0002] Profiles are objects with a certain geometric shape made from iron or steel and other materials with a certain strength and toughness through rolling, extrusion, casting and other processes. Due to their excellent mechanical properties and wide applicability, they have long been an indispensable basic component in building structures, bridges, industrial manufacturing and other fields.

[0003] Existing hollow profile designs generally tend to increase the wall thickness to ensure that the profile has sufficient load-bearing capacity and toughness. However, the practice of over-reliance on increasing wall thickness to improve strength has inherent limitations. First, the increase in wall thickness directly leads to an increase in the mass of the profile, which in turn increases the weight of the profile itself, which not only raises the production cost in terms of raw material consumption, but also causes a significant increase in transportation costs in the logistics link. At the same time, overweight profiles may also affect the ease of assembly of the final product and its compliance with the lightweight design trend. Summary of the invention

[0004] The invention provides a hollow special-shaped profile and a column structure to solve the technical problem that the profile strength and rigidity are insufficient under the premise that the hollow profile is not thickened.

[0005] The first aspect of the present invention is to provide a hollow special-shaped profile, including a hollow profile body, wherein a plurality of reinforcing ribs are arranged in the profile body to divide the interior of the profile body into a plurality of chambers, and a reinforcing body is arranged on at least one side of the profile body, and the reinforcing body is arranged along the length direction of the profile body. The reinforcing body has the side surface of the profile body as the bottom surface, and two intersecting inclined surfaces are arranged on the bottom surface to form a triangular prism structure.

[0006] The profile body is set as a hollow structure, and the reinforcement ribs are set inside the hollow profile body, which can achieve the effect of reducing the material consumption and improving the strength of the profile. The reinforcement body provides an additional connection point for the profile body, and further improves the structural stability of the profile body and increases the strength of the profile body.

[0007] As a preferred technical solution of the present invention, the width of the bottom surface of the reinforcement body is smaller than the width of the side surface of the profile body on which the reinforcement body is provided.

[0008] As a preferred technical solution of the present invention, an assembly part is provided on an inclined surface of the reinforcement body for auxiliary assembly. The arrangement of the assembly part enables the reinforcement body to be directly assembled with other profiles through the assembly part, greatly improving the assembly efficiency.

[0009] As a preferred technical solution of the present invention, the assembly portion is an introduction piece protruding from the inclined surface, and the introduction piece is perpendicular to the inclined surface and parallel to the intersection line of the two inclined surfaces. The introduction piece and the inclined surface without the introduction piece form a step with a certain height difference, providing space for other profiles to nest with each other and enhancing the reliability of the connection. The introduction piece is used to guide the assembly of other profiles and can serve as a support to increase the contact area of ​​the two profiles after assembly, making the assembly more stable.

[0010] As a more preferred technical solution of the present invention, the distance from the lead-in sheet to the intersection line is consistent with the thickness of the profile connected and assembled to the lead-in sheet. This arrangement enables the profile and the inclined surface of the reinforcement body without the lead-in sheet to be on the same surface after the profile and the lead-in sheet are assembled, thereby increasing the overall aesthetics after assembly.

[0011] As a preferred technical solution of the present invention, the connection between the inclined surface of the reinforcement body and the profile body is in an arc transition, which makes the connection smoother and easier to clean.

[0012] As a preferred technical solution of the present invention, the inclined surface of the reinforcement body without the introduction piece is arranged in a concave arc surface.

[0013] As a preferred technical solution of the present invention, a friction portion is provided on the outer surface of the lead-in piece to enhance the friction between the lead-in piece and the matching mounting profile, thereby improving the reliability of the mounting connection between the special-shaped profile and other profiles.

[0014] As a preferred technical solution of the present invention, a mounting portion is provided at the end of the profile body to facilitate the installation of the profile body.

[0015] As a preferred technical solution of the present invention, the outer diameter of the mounting portion is smaller than the outer diameter of the profile body, and the mounting portion and the profile body form steps on both sides. The arrangement of the mounting portion enhances the overall installation consistency, stability and reliability of the profile body and other profiles.

[0016] The second aspect of the present invention is to provide a column structure, including the above-mentioned special-shaped profile, the column structure includes edge columns and middle columns, and a hollow cavity is provided in the middle of the column structure.

[0017] As a preferred technical solution of the present invention, the edge column includes two special-shaped profiles with reinforcement bodies provided on one side of the profile body, a connecting profile, and a connecting plate. The guide plates of the two special-shaped profiles are arranged relatively to each other, and the two ends of the connecting plate are respectively adapted to be installed with the two guide plates; the two ends of the connecting profile are respectively installed and connected with the two end portions of the two special-shaped profiles that are close to each other. After the special-shaped profile is adapted to be installed with the connecting profile and the connecting plate, a column with a hollow cavity is formed.

[0018] The column structure is an edge column, that is, a non-shared column. The column structure can be used as a right-angle connector of a three-dimensional frame for flexible assembly of the three-dimensional frame.

[0019] As a preferred technical solution of the present invention, the middle column includes the three above-mentioned special-shaped profiles, a connecting plate, and a baffle. The three special-shaped profiles are respectively two special-shaped profiles with reinforcement bodies provided on one side of the profile body, and one special-shaped profile with reinforcement bodies provided on both sides of the profile body. The three special-shaped profiles are arranged in a triangular shape. The special-shaped profiles with reinforcement bodies provided on both sides of the profile body are arranged in the middle, which is a middle special-shaped profile. The two special-shaped profiles with reinforcement bodies provided on one side of the profile body are arranged on both sides of the middle special-shaped profile and are arranged symmetrically. The introduction piece of the middle special-shaped profile is arranged opposite to the introduction pieces of the special-shaped profiles on the left and right sides respectively. The two ends of the connecting plate are respectively adapted to be installed with the guide piece of the middle special-shaped profile and the guide pieces of the special-shaped profiles on the left and right sides. The two ends of the baffle are respectively connected to the two ends of the special-shaped profiles on the left and right sides close to each other, and the profiles, the baffle and the connecting plate are adapted and installed to form a column with a hollow cavity.

[0020] The column structure is an intermediate column, i.e. a common column, and the column structure is arranged in a "T" shape as a whole. The column structure can be used as a T-shaped connector of the three-dimensional frame for flexible assembly of the three-dimensional frame.

[0021] As a preferred technical solution of the present invention, the two special-shaped profiles are connected by a U-shaped connecting piece. A U-shaped connecting piece is arranged between the special-shaped profiles of the column structure, and the U-shaped connecting piece is fixedly connected to the reinforcement body inclined surface of the special-shaped profile by bolts.

[0022] As a preferred technical solution of the present invention, a reinforcing rib is provided at the end of the U-shaped connecting piece. The reinforcing rib connects the end and the middle of the U-shaped connecting piece and forms two triangular structures with the U-shaped connecting piece to enhance the anti-deformation performance of the U-shaped connecting piece.

[0023] The beneficial effects are: 1. The special-shaped profile of the present invention has a simple structure and flexible combination, and supports assembly into column structures of various shapes as required; without sacrificing or reducing the strength of the profile as much as possible, the weight of the profile is reduced, thereby effectively reducing the production and transportation costs.

[0024] 2. The special-shaped profile of the present invention saves materials, has a lighter weight, a stable cavity structure, and a higher strength. The triangular prism structure reinforcement body not only provides the connection function of the special-shaped profile, but also enhances the structural stability of the special-shaped profile body and improves the anti-deformation performance.

[0025] 3. The present invention forms a column structure by combining special-shaped profiles with other profiles, and produces an overall triangular prism-like chamber structure, which can further increase the structural rigidity without increasing the thickness of the profiles, thereby improving the stress resistance of the column structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein: Figure 1 This is a schematic diagram of the structure of the hollow special-shaped profile of Example 1 (i.e. a reinforcement body is provided on one side of the profile body in the length direction); Figure 2 It is a structural schematic diagram of the column structure (edge ​​column) of Example 1; Figure 3 This is a schematic structural diagram of a hollow special-shaped profile of Example 2 (reinforcements are provided on both sides of the profile body in the length direction); Figure 4 This is a schematic structural diagram of the column structure (middle column) of Example 2.

[0027] Description of reference numerals: 1. Profile body; 11. Chamber; 2. Reinforcement body; 3. Introduction plate; 4. Mounting portion; 5. Connecting profile; 51. L-shaped plate; 6. Connecting plate; 61. Storage cavity; 7. Baffle; 8. U-shaped connecting plate. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0029] Any number of elements in the drawings is for illustration and not limitation, and any naming is for distinction only and does not have any limiting meaning.

[0030] The principle and spirit of the present invention are explained in detail below with reference to several representative embodiments of the present invention.

[0031] Embodiment 1: like Figure 1A hollow special-shaped profile shown includes a profile body 1, which is arranged in a square tube. A plurality of reinforcing ribs are arranged in the cavity of the square tube. The arrangement of the plurality of reinforcing ribs divides the entire cavity into a plurality of independent chambers 11. This arrangement can reduce the material used for the profile and improve the strength of the profile. A reinforcing body 2 is arranged on one side of the length direction of the profile body 1. The reinforcing body 2 is arranged in a triangular prism structure. The reinforcing body 2 takes the side of the profile body 1 as the bottom surface, and two intersecting inclined surfaces are arranged on the bottom surface to form a triangular prism structure. The angle between the bottom surface and the inclined surface can be set to different angles as needed, such as 45°, and the top angle formed by the intersection of the two inclined surfaces is 90°. Of course, the angles of the two angles between the bottom surface and the inclined surface can also be set to different angles. The arrangement of the reinforcing body 2 further improves the stability of the profile structure and the strength of the profile.

[0032] In order to facilitate the connection and assembly of the reinforcement body 2 with other profiles, an assembly portion is provided on any inclined surface for matching and assembling with other profiles. In this embodiment, the assembly portion is provided as an introduction piece 3, which is provided in the vertical line direction of the inclined surface and parallel to the intersection line of the two inclined surfaces, and the distance from the introduction piece 3 to the intersection line is consistent with the thickness of the profile connected and assembled there. The provision of the introduction piece 3 provides a space for other profiles to nest with each other, thereby enhancing the reliability of the connection; and after the introduction piece 3 is assembled with the profile connected and assembled there, the profile and the inclined surface of the reinforcement body 2 without the introduction piece 3 are on the same surface, thereby increasing the overall aesthetics.

[0033] In order to make the assembly of the introduction piece 3 and other profiles more secure, a friction part is provided on one side of the introduction piece 3 used for assembly to enhance the surface friction of the introduction piece 3 .

[0034] Of course, in other embodiments, the assembly portion may also be in the form of an inwardly concave groove, an outwardly convex groove, or other forms.

[0035] In order to make the special-shaped profile more beautiful, the connection between the inclined surface of the introduction piece 3 and the profile body 1 is not provided with an arc transition. The arc surface setting makes the connection smoother and easier to clean.

[0036] As a preferred solution of this embodiment, the inclined surface without the introduction piece 3 is configured as a concave arc surface (the inclined surface without the introduction piece 3 is referred to as the concave arc surface below). This configuration further reduces the floor space occupied by the special-shaped profile.

[0037] In order to facilitate the assembly of the profile body 1 with other profiles, a mounting portion 4 is provided at the end of the profile body 1, and the mounting portion 4 is adapted to be installed with the corresponding profile. In this embodiment, the outer diameter of the mounting portion 4 is smaller than the outer diameter of the end of the profile body 1, and steps are formed on both sides of the mounting portion 4 and the end of the profile body 1, and the profile adapted to be installed with the mounting portion 4 is provided with a groove, and the groove is adapted to be installed with the step of the mounting portion 4. The setting of the mounting portion 4 provides space for other profiles to be inserted, thereby enhancing the stability and reliability of the overall installation.

[0038] In other embodiments, the mounting portion 4 may also be configured as a groove, or a plurality of geometric protrusions thereof may be evenly arranged, such as a sphere, a wedge, and the like.

[0039] like Figure 2 As shown, this embodiment also involves a column structure, which is an edge column, that is, a non-shared column, and the column structure is arranged in an "L" shape as a whole. The column structure includes two of the above-mentioned special-shaped profiles (that is, the special-shaped profile is provided with a reinforcement body 2 on one side of the profile body 1), a connecting profile 5, and a connecting plate 6. Two special-shaped profiles are arranged on two sides of the "L"-shaped column, and the guide pieces 3 on the two special-shaped profiles are arranged opposite to each other.

[0040] The connecting profile 5 is arranged in a "C" shape, and the two ends of the "C"-shaped connecting profile 5 are respectively adapted to be installed with the ends of two special-shaped profiles to form the main frame of the "L"-shaped column. Of course, in other embodiments, the connecting profile 5 can also be arranged in other shapes, such as "I" shape, "L" shape, etc.

[0041] The lead-in pieces 3 on the two special-shaped profiles are adapted to be installed at both ends of the connecting plate 6. After installation, the connecting plate 6 and the concave arc surface of the reinforcing body 2 are on the same surface. Since the lead-in piece 3 is arranged at a certain angle with the profile body 1 of the special-shaped profile, a cavity with a certain accommodating space is formed inside the column.

[0042] In actual use, the accommodating space of the column cavity can be controlled by adjusting the angle between the concave arc surface of the reinforcement body 2 and the profile body 1. The angle can be any angle between 0°-90°, such as 5°, 15°, 30°, 45°, 60°, 75°, etc. The cavity formed inside the column can be used to accommodate electrical wires or different functional modules according to different scene requirements. For example, when the column structure is used as a column for a berth compartment in a carriage, the air duct of the berth compartment can be set in the cavity of the column. Of course, the column structure can also be used for building structures, such as simple houses. The column structure can be used as a right-angle connector of a three-dimensional frame for flexible assembly of the three-dimensional frame.

[0043] The connecting profile 5 is set as a hollow structure, and the outer diameter of the connecting profile 5 is consistent with the outer diameter of the profile body 1. Since the connecting profile 5 is at the corner of the column structure, in order to prevent the column structure from hitting people, the outer side of the connecting profile 5 is set as a curved surface.

[0044] In order to make the structure of the connecting profile 5 more solid and stable, and thus make the assembled column structure more stable and have better bearing capacity, an L-shaped plate 51 is added to the outer side surface (hereinafter referred to as the outer arc surface) of the connecting profile 5, and the L-shaped plate 51 and the outer arc surface form a triangular prism-like structure. The connecting profile 5 with the L-shaped plate 51 is set in an "L" shape as a whole. The top corners of the L-shaped plate 51 are rounded.

[0045] In order to provide multiple functional areas in the column cavity, a storage cavity 61 is further provided on the inner surface of the connecting plate 6 .

[0046] In order to make the connection between the two special-shaped profiles more secure, the two special-shaped profiles are connected by a U-shaped connecting piece 8, and the U-shaped connecting piece 8 is connected to the inclined surface of the introduction piece 3 by bolts.

[0047] In order to enhance the strength of the U-shaped connecting piece 8 , reinforcing ribs are provided at both ends of the U-shaped connecting piece 8 . The provision of the reinforcing ribs enhances the anti-deformation performance of the U-shaped connecting piece 8 .

[0048] Embodiment 2: The main difference between it and Example 1 is: In this embodiment, if Figure 3 In the hollow special-shaped profile shown, the profile body 1 is provided with reinforcement bodies 2 on both sides in the length direction.

[0049] like Figure 4 As shown, this embodiment also involves a column structure, which is an intermediate column, that is, a common column, and the column structure is arranged in a "T" shape as a whole. The column structure includes three special-shaped profiles, a connecting plate 6, and a baffle 7.

[0050] The three special-shaped profiles are: two special-shaped profiles with reinforcement bodies 2 only on one side of the profile body 1 (i.e., the special-shaped profiles described in Example 1, hereinafter referred to as special-shaped profile one), and one special-shaped profile with reinforcement bodies 2 on both sides of the profile body 1 (i.e., the special-shaped profiles described in Example 2, hereinafter referred to as special-shaped profile two). The three special-shaped profiles are arranged in a triangle, with special-shaped profile one arranged in the middle, and the other two special-shaped profiles two being relatively arranged on the left and right sides above special-shaped profile one, and the two introduction pieces 3 on special-shaped profile two are respectively arranged relatively to the two introduction pieces 3 of special-shaped profile one.

[0051] The connecting plate 6 is used to connect the special-shaped profile 2 with the special-shaped profile 1; the two ends of the connecting plate 6 are respectively adapted and installed with the guide plates 3 of the special-shaped profile 1 and the special-shaped profile 2. After installation, the connecting plate 6 and the concave arc surfaces of the special-shaped profile 1 and the special-shaped profile 2 are on the same surface.

[0052] The baffle 7 is used to connect the ends of two special-shaped profiles together. The baffle 7 is set as a hollow structure, and the outer diameter of the baffle 7 is consistent with the outer diameter of the profile body 1. In order to enhance the structural firmness of the baffle 7, a plurality of reinforcing ribs are arranged in the baffle 7 to divide the cavity into a plurality of chambers 11.

[0053] The above-mentioned special-shaped profiles, the baffle plate 7 and the connecting plate 6 are adapted and installed to form a middle column with a hollow cavity, which can be used as a T-shaped connector of the three-dimensional frame for flexible assembly of the three-dimensional frame.

[0054] In actual use, the accommodating space of the column cavity can be controlled by adjusting the angle between the concave arc surface of the reinforcement body 2 and the profile body 1. The angle can be any angle between 0°-90°, such as 5°, 15°, 30°, 45°, 60°, 75°, etc. The cavity formed inside the column can be used to accommodate electrical wires or different functional modules according to different scene requirements. For example, when the column structure is used as a column for a sleeper compartment in a carriage, the air duct of the sleeper compartment can be set in the cavity of the column. Of course, the column structure can also be used for building structures, such as simple houses.

[0055] In order to provide multiple functional areas in the column cavity, a storage cavity 61 is further provided on the inner surface of the connecting plate 6 .

[0056] In order to make the connection of the special-shaped profiles more secure, the special-shaped profiles are connected by a U-shaped connecting piece 8, and the U-shaped connecting piece 8 is connected to the inclined surface of the introduction piece 3 by bolts.

[0057] In order to enhance the strength of the U-shaped connecting piece 8 , reinforcing ribs are provided at both ends of the U-shaped connecting piece 8 . The provision of the reinforcing ribs enhances the anti-deformation performance of the U-shaped connecting piece 8 .

[0058] According to the above description of this specification, those skilled in the art may also understand that the terms used below, such as "up", "left", "right", "width", "length", "angle" and other terms indicating orientation or position relationship are based on the orientation or position relationship shown in the drawings of this specification, which are only for the purpose of facilitating the explanation of the scheme of the present invention and simplifying the description, rather than explicitly or implicitly indicating that the device or element involved must have the specific orientation, be constructed and operate in a specific orientation. Therefore, the above-mentioned orientation or position relationship terms cannot be understood or interpreted as limitations on the scheme of the present invention.

[0059] In addition, in the description of this specification, “plurality” means at least two, for example, two, three or more, etc., unless otherwise clearly and specifically defined.

Claims

1. A hollow special-shaped profile, comprising a hollow profile body (1), wherein a plurality of reinforcing ribs are arranged inside the profile body (1) to divide the interior of the profile body (1) into a plurality of chambers (11), It is characterized in that A reinforcing body (2) is provided on at least one side of the profile body (1); the reinforcing body (2) is provided along the length direction of the profile body (1); the reinforcing body (2) has the side surface of the profile body (1) as the bottom surface, and two intersecting inclined surfaces are provided on the bottom surface to form a triangular prism structure.

2. A hollow special-shaped profile as claimed in claim 1, It is characterized in that An assembly portion is provided on an inclined surface of the reinforcement body (2) for assisting assembly.

3. A hollow special-shaped profile as claimed in claim 2, It is characterized in that The assembly portion is an introduction piece (3) protruding from the inclined surface; the introduction piece (3) is perpendicular to the inclined surface and is arranged parallel to the intersection line of the two inclined surfaces.

4. A hollow special-shaped profile as claimed in claim 3, It is characterized in that The connection between the inclined surface and the profile body (1) is transitioned by an arc.

5. A hollow special-shaped profile as claimed in claim 4, It is characterized in that The end of the profile body (1) is provided with a mounting portion (4) to facilitate the mounting of the profile body (1).

6. A hollow special-shaped profile as claimed in claim 5, It is characterized in that The outer diameter of the mounting portion (4) is smaller than the outer diameter of the profile body (1), and steps are formed on both sides of the mounting portion (4) and the profile body (1).

7. A column structure, It is characterized in that It comprises the special-shaped profile as described in any one of claims 1 to 6, the column structure comprises edge columns and middle columns, and a hollow cavity is provided in the middle of the column structure.

8. A column structure as claimed in claim 7, It is characterized in that The edge column comprises two special-shaped profiles with reinforcement bodies (2) arranged on one side of the profile body (1), a connecting profile (5), and a connecting plate (6); the guide pieces (3) of the two special-shaped profiles are arranged opposite to each other, and the two ends of the connecting piece are respectively adapted to be installed with the two guide pieces (3); the two ends of the connecting profile (5) are respectively installed and connected with two end portions of the two special-shaped profiles that are close to each other, and the special-shaped profile, the connecting profile (5), and the connecting plate (6) are adapted to be installed to form an edge column with a hollow cavity.

9. A column structure as claimed in claim 7, It is characterized in that The middle column comprises the three special-shaped profiles, a connecting plate (6), and a baffle (7). The three special-shaped profiles are respectively two special-shaped profiles with reinforcement bodies (2) arranged on one side of the profile body (1), and one special-shaped profile with reinforcement bodies (2) arranged on both sides of the profile body (1). The three special-shaped profiles are arranged in a triangular shape. The special-shaped profile with reinforcement bodies (2) arranged on both sides of the profile body (1) is arranged in the middle, which is a middle special-shaped profile. The two special-shaped profiles with reinforcement bodies (2) arranged on one side of the profile body (1) are arranged on both sides of the middle special-shaped profile and are arranged symmetrically on the left and right. The introduction piece (3) of the middle special-shaped profile is arranged opposite to the introduction pieces (3) of the special-shaped profiles on the left and right sides respectively. The two ends of the connecting plate (6) are respectively adapted to be installed with the introduction piece (3) of the middle special-shaped profile and the introduction pieces (3) of the special-shaped profiles on the left and right sides. The two ends of the baffle (7) are respectively installed and connected to the two ends of the special-shaped profiles on the left and right sides that are close to each other; The profiled material, the baffle plate (7) and the connecting plate (6) are adapted and installed to form a middle column with a hollow cavity.

10. A column structure according to claim 8 or 9, It is characterized in that The two special-shaped profiles are connected via a U-shaped connecting piece (8); and reinforcing ribs are provided at the ends of the U-shaped connecting piece (8).