Steel column structure convenient to disassemble and assemble

Abstract

The utility model relates to the technical field of steel structure buildings, and discloses a steel column structure convenient to disassemble and assemble, which comprises an I-shaped steel body, a bottom flange plate is fixed at the bottom of the I-shaped steel body, and a top flange plate is fixed at the top of the I-shaped steel body; a plurality of top connecting holes are formed in the surface of the top flange plate, a plurality of positioning pin rods are fixed to the top of the top flange plate, a plurality of pin holes matched with the positioning pin rods are formed in the bottom of the bottom flange plate, and a plurality of limiting nuts are fixed to the top of the bottom flange plate. The center points of the limiting nut, the bottom connecting hole and the top connecting hole are located on the same vertical line, a supporting plate is fixed to the top of the top flange plate, a groove matched with the supporting plate is formed in the bottom of the bottom flange plate, and a spring is fixed to the top of the top flange plate. According to the steel column structure convenient to disassemble and assemble, through the guide fit of the positioning pin rods and the pin holes and the pre-installation design of the limiting nuts, the installation efficiency of the I-shaped steel body in the vertical direction is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of steel structure building technology, specifically to a steel column structure that is easy to assemble and disassemble. Background Technology

[0002] Steel structure engineering is a type of building structure primarily constructed of steel. It is a common structural form in modern construction engineering, mainly bearing axial pressure, bending moment, and shear force from the superstructure and transferring the load to the foundation. It is typically made of H-beams, steel pipes, box-sections, etc., and features high strength, lightweight, and ease of construction.

[0003] Existing steel components are generally made up of multiple I-beams connected together. When connecting the I-beams, manual welding is mostly used. However, welding takes a long time and cannot be completed quickly. Using bolts requires a lot of time to align the I-beams, resulting in low efficiency in the assembly and disassembly of steel columns, which is difficult to meet the usage requirements. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a steel column structure that is easy to assemble and disassemble, so as to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a steel column structure that is easy to assemble and disassemble, including an I-beam body, a bottom flange fixed to the bottom of the I-beam body, and a top flange fixed to the top of the I-beam body;

[0006] The top flange has multiple top connection holes on its surface, and multiple positioning pins are fixed to the top of the top flange. The bottom flange has multiple pin holes for inserting the positioning pins, and multiple limiting nuts are fixed to the top of the bottom flange. The center points of the limiting nuts, the bottom connection holes, and the top connection holes are on the same vertical line. A support plate is fixed to the top of the top flange, and a groove for inserting the support plate is opened to the bottom of the bottom flange. A spring is fixed to the top of the top flange, and a pressure plate is fixed to the surface of the spring.

[0007] Preferably, the limiting nut is a reusable self-locking nut.

[0008] Preferably, a sealing gasket is fixed to the top of the support plate, and a sealing groove is formed on the top of the inner wall of the groove to cooperate with the sealing gasket.

[0009] Preferably, both the top of the top flange and the bottom of the bottom flange are coated with a graphite lubricating coating.

[0010] Preferably, the top of the positioning pin is designed with a semi-circular structure, and the bottom edge of the pin hole is chamfered.

[0011] Preferably, the inner wall of the bottom connecting hole is provided with an internal thread, and the internal thread of the inner wall of the bottom connecting hole is adapted to the internal thread of the limiting nut.

[0012] Preferably, the top flange, locating pin, and support plate are all made of the same material.

[0013] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0014] First, this utility model significantly improves the efficiency of vertical I-beam body installation through the guiding fit of the positioning pin and pin hole and the pre-installation design of the limiting nut. The tolerance design of the semi-circular pin and chamfered pin hole reduces the requirements for hoisting positioning accuracy. The plug-in structure of the support plate and the groove makes the vertical load transfer path clear and the node compressive strength higher.

[0015] Secondly, in this utility model, the limiting nut can be a nylon insert self-locking nut or an all-metal deformable self-locking nut. Its internal thread generates additional friction through elastic deformation or wedge structure. After the bolt is screwed in, a double anti-loosening mechanism is formed. When disassembling, the locking state can be released by rotating in the opposite direction. The reusable disassembly feature reduces maintenance costs and ensures that the bottom flange and top flange can be separated normally. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a partial disassembled structural diagram of the present invention;

[0018] Figure 3 This is a partial structural schematic diagram of the present invention;

[0019] Figure 4 This is a partial structural schematic diagram of the present invention.

[0020] The components are: 1. I-beam body; 2. Bottom flange; 3. Top flange; 4. Top connection hole; 5. Positioning pin; 6. Pin hole; 7. Limit nut; 8. Bottom connection hole; 9. Support plate; 10. Groove; 11. Spring; 12. Pressure plate; 13. Sealing gasket. Detailed Implementation

[0021] The specific embodiments of this utility model will now be described in further detail with reference to the accompanying drawings.

[0022] Please see Figure 1-4 A steel column structure that is easy to assemble and disassemble includes an I-beam body 1, a bottom flange 2 fixed to the bottom of the I-beam body 1, and a top flange 3 fixed to the top of the I-beam body 1.

[0023] The top flange 3 has multiple top connection holes 4 on its surface. Multiple positioning pins 5 are fixed to the top of the top flange 3. Multiple pin holes 6 are opened at the bottom of the bottom flange 2 to accommodate the positioning pins 5. Multiple limit nuts 7 are fixed to the top of the bottom flange 2. The center points of the limit nuts 7, the bottom connection holes 8, and the top connection holes 4 are on the same vertical line. A support plate 9 is fixed to the top of the top flange 3. A groove 10 is opened at the bottom of the bottom flange 2 to accommodate the support plate 9. A spring 11 is fixed to the top of the top flange 3. A pressure plate 12 is fixed to the surface of the spring 11.

[0024] Through the above technical solution, the I-beam body 1 achieves rapid connection of the upper and lower steel columns through the top flange 3 and the bottom flange 2. The positioning pin 5 is inserted into the pin hole 6 to complete the initial positioning, reducing the time for manual adjustment and ensuring the coaxiality of the top connecting hole 4 and the bottom connecting hole 8. The limit nut 7 is pre-welded to the top of the bottom flange 2. After the bolt passes through the top connecting hole 4, it is directly screwed into the limit nut 7 to complete the fixation, avoiding the difficulty of matching the nut with the hole on site and improving the installation efficiency. The support plate 9 is embedded in the groove 10 to transmit the vertical load, forming a shear-resistant structure and enhancing the stability of the node. The spring 11 and the pressure plate 12 compress and store force. When the bottom flange 2 and the top flange 3 are removed, the spring 11 rebounds, allowing the bottom flange 2 and the top flange 3 to separate quickly, avoiding the flange corrosion and adhesion, and is more suitable for frequent disassembly and assembly scenarios.

[0025] The limit nut 7 is a reusable self-locking nut.

[0026] Through the above technical solution, the limiting nut 7 can be a nylon insert self-locking nut or an all-metal deformable self-locking nut. Its internal thread generates additional friction through elastic deformation or wedge structure. After the bolt is screwed in, a double anti-loosening mechanism is formed. When disassembling, the locking state can be released by rotating in the opposite direction. The reusable disassembly feature reduces maintenance costs and ensures that the bottom flange 2 and the top flange 3 can be separated normally.

[0027] A sealing gasket 13 is fixed to the top of the support plate 9, and a sealing groove for use with the sealing gasket 13 is opened on the top of the inner wall of the groove 10.

[0028] With the above technical solution, when the support plate 9 is inserted into the groove 10, the sealing gasket 13 is deformed by pressure and fills the sealing groove, forming a physical barrier and reducing the contact area between water vapor and dust and the contact surfaces of the bottom flange 2 and the top flange 3.

[0029] The top of the top flange 3 and the bottom of the bottom flange 2 are both coated with a graphite lubricating coating.

[0030] Through the above technical solutions, the graphite coating reduces the frictional resistance when the bottom flange 2 and the top flange 3 are connected, thus speeding up the installation process; it prevents cold welding caused by direct contact between metals, making it easy to repeatedly disassemble and reassemble; and the coating has both electrical conductivity and high temperature resistance, making it suitable for complex working environments.

[0031] The top of the positioning pin 5 has a semi-circular structure design, and the bottom edge of the pin hole 6 has a chamfer design.

[0032] Through the above technical solution, the top of the semi-circular positioning pin 5 is automatically guided during the insertion process, and the edge of the chamfered pin hole 6 expands the entry tolerance range, allowing for a small initial position deviation, and achieving precise alignment through self-correction.

[0033] The inner wall of the bottom connecting hole 8 is provided with an internal thread, which is compatible with the internal thread of the limit nut 7.

[0034] Through the above technical solution, the inner wall of the bottom connecting hole 8 is directly machined with an internal thread of the same specification as the limit nut 7. When the bolt passes through the top connecting hole 4, it can be screwed into the limit nut 7 or directly meshed with the internal thread of the bottom connecting hole 8, forming a double thread force transmission path, dispersing the thread force, reducing stress concentration, and improving system reliability.

[0035] The top flange 3, the locating pin 5, and the support plate 9 are all made of the same material.

[0036] The above technical solution avoids potential difference corrosion caused by dissimilar metal connections through welding of the same material, and the consistent coefficient of thermal expansion reduces temperature stress and improves structural durability.

[0037] In use, the I-beam body 1 is quickly installed through the cooperation of the top flange 3 and the bottom flange 2. During hoisting, the positioning pin 5 of the upper steel column is first aligned with the pin hole 6 of the lower steel column. The head of the semi-circular positioning pin 5 and the chamfered pin hole 6 guide the automatic centering. After the rough positioning is completed, the support plate 9 is embedded in the groove 10. The sealing interface is formed by the compression of the sealing gasket 13 and the sealing groove. The bolts pass through the top connecting hole 4 and the bottom connecting hole 8 in sequence and are screwed into the limit nut 7. The anti-loosening function of the limit nut 7 ensures the reliability of the connection. When disassembling, after the bolts are loosened, the spring 11 automatically lifts and separates the bottom flange 2 and the top flange 3. Then, the bottom flange 2 is pulled upward to make the positioning pin 5 disengage from the pin hole 6, thus completing the disassembly and realizing an efficient and stable modular connection system.

[0038] Although specific embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these specific embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A steel column structure that is easy to assemble and disassemble, comprising an I-beam body (1), characterized in that: The bottom of the I-beam body (1) is fixed with a bottom flange (2), and the top of the I-beam body (1) is fixed with a top flange (3); The top flange (3) has multiple top connection holes (4) on its surface. Multiple positioning pins (5) are fixed on the top of the top flange (3). Multiple pin holes (6) for the positioning pins (5) are opened on the bottom of the bottom flange (2). Multiple limiting nuts (7) are fixed on the top of the bottom flange (2). The center point of the limiting nut (7), the bottom connection hole (8), and the top connection hole (4) are on the same vertical line. A support plate (9) is fixed on the top of the top flange (3). A groove (10) for the support plate (9) is opened on the bottom of the bottom flange (2). A spring (11) is fixed on the top of the top flange (3). A pressure plate (12) is fixed on the surface of the spring (11).

2. The easily assembled and disassembled steel column structure according to claim 1, characterized in that: The limiting nut (7) is a reusable self-locking nut.

3. The easily assembled and disassembled steel column structure according to claim 1, characterized in that: The top of the support plate (9) is fixed with a sealing gasket (13), and the top of the inner wall of the groove (10) is provided with a sealing groove for use with the sealing gasket (13).

4. The easily assembled and disassembled steel column structure according to claim 1, characterized in that: The top of the top flange (3) and the bottom of the bottom flange (2) are both coated with a graphite lubricating coating.

5. The easily assembled and disassembled steel column structure according to claim 1, characterized in that: The top of the positioning pin (5) is designed with a semi-circular structure, and the bottom edge of the pin hole (6) is chamfered.

6. The easily assembled and disassembled steel column structure according to claim 1, characterized in that: The inner wall of the bottom connecting hole (8) is provided with an internal thread, and the internal thread of the inner wall of the bottom connecting hole (8) is adapted to the internal thread of the limiting nut (7).

7. The easily assembled and disassembled steel column structure according to claim 1, characterized in that: The top flange (3), positioning pin (5), and support plate (9) are all made of the same material.

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