Anti-bending moment supporting square tube

Abstract

The utility model relates to the technical field of square tubes, in particular to an anti-bending moment supporting square tube, which comprises an expanded steel base plate, an outer square tube, an inner square tube and a bottom support, the inner square tube is sleeved in the outer square tube, fine aggregate concrete is arranged between the outer square tube and the inner square tube, a square reinforcement cage is arranged in the fine aggregate concrete, and the bottom support is arranged in the square reinforcement cage. A bottom support is welded to the top of the outer square pipe and the top of the inner square pipe. An electric cylinder is installed at the corner of the top of the bottom support through an installation hole, an output shaft of the electric cylinder is connected with a discharging top plate through a connecting disc and a bolt, limiting plates are installed at the ends of the two sides of the bottom support through bolts, sliding holes are formed in the top ends of the limiting plates, and sliding rods are arranged in the sliding holes in a sliding mode; the overall strength, rigidity and stability are greatly improved through the supporting square pipes, the bearing capacity is improved, the bending moment resisting effect is remarkable, after concrete is cured and formed, dismantling of a formwork system is convenient to achieve, practicability is high, and the effect is remarkable.

Description

Technical Field

[0001] This utility model relates to the field of square tube technology, specifically to a bending moment resistant square tube. Background Technology

[0002] Square tubes, also known as rectangular tubes, are a type of square tubing, meaning steel pipes with equal side lengths. They are typically made from strip steel through a process of rolling, and are hollow steel pipes with square or rectangular cross-sections. When pouring large volumes of concrete for beams, formwork is supported using a scaffolding method. The bottom of the formwork is equipped with trusses, which require square tubes for reinforcement and support.

[0003] Supporting square tubes cannot improve the overall strength, rigidity, and stability. They have low load-bearing capacity and poor bending moment resistance. Once the concrete has cured and solidified, it is not easy to remove the formwork system, making them impractical. Summary of the Invention

[0004] To address the problems in the existing technology, this utility model provides a bending moment support square tube, which greatly improves the overall strength, stiffness and stability, enhances its load-bearing capacity, and has a significant bending moment resistance effect. After the concrete has cured and formed, it is easy to remove the formwork system, making it highly practical and effective.

[0005] The technical solution adopted by this utility model to solve its technical problem is a moment-resisting support square tube, including an enlarged steel pad, an outer square tube, an inner square tube and a bottom support. The outer square tube is fitted with an inner square tube and fine stone concrete is provided between the outer square tube and the inner square tube. A square steel cage is provided in the fine stone concrete. The bottom support is welded to the top of the outer square tube and the inner square tube.

[0006] An electric cylinder is installed at the top corner of the base through a mounting hole. The output shaft of the electric cylinder is connected to a drop plate through a connecting plate and bolts. Limiting plates are installed at both ends of the base through bolts, and sliding holes are opened at the top of the limiting plates. A sliding rod slides in the sliding hole. One end of the sliding rod is connected to the drop plate through a mounting hole, and a limiting sleeve is fitted on the other end of the sliding rod.

[0007] By adopting the above technical solutions, the supporting square tubes are greatly improved in terms of overall strength, rigidity and stability, and their load-bearing capacity is enhanced. The bending moment resistance is also significantly improved. After the concrete has cured and formed, the formwork system can be easily removed. The system is highly practical and effective.

[0008] Specifically, the bottoms of the outer square tube and the inner square tube are connected to an enlarged steel pad through a connecting metal sleeve, and a connecting bolt is installed on the outside of the connecting metal sleeve through a screw hole.

[0009] By adopting the above technical solution, the connecting metal sleeve and connecting bolts facilitate the connection of the expanded steel pad, thereby increasing the contact area with the foundation surface and allowing stress to diffuse.

[0010] Specifically, lateral reinforcing plates are welded at equal intervals on both sides of the top of the outer square tube, and the top of the lateral reinforcing plates is welded to the base.

[0011] By adopting the above technical solution, the strength of the connection between the base and the outer square tube is improved by using lateral reinforcing plates, making it less prone to cracking and more durable.

[0012] Specifically, the unloading top plate, bottom support, outer square tube, and inner square tube are all made of carbon steel.

[0013] Specifically, the outer surface of the outer square tube is coated with an outer insulating layer, which is specifically made of polytetrafluoroethylene material.

[0014] The beneficial effects of this utility model are:

[0015] The present invention discloses a moment-resisting support square tube, which utilizes connecting metal sleeves and connecting bolts to facilitate the connection of an enlarged steel pad, thereby increasing the contact area with the foundation surface and diffusing stress. The unloaded top plate is supported on the truss at the bottom of the formwork system. An electric cylinder drives the unloaded top plate to move upward a certain distance, lifting the formwork to form a certain pre-camber. The support square tube adopts a double-layer steel structure, and the space between is filled with fine stone concrete, which greatly improves the overall strength, rigidity and stability, enhances its load-bearing capacity, and has a significant moment-resistance effect.

[0016] The present invention describes a moment-resisting square tube. After the concrete has cured and formed, an electric cylinder is used to move the top plate downward, which facilitates the removal of the formwork system. It is highly practical and effective. The use of a square steel cage increases the integrity of the fine aggregate concrete, resulting in good crack resistance, high shear strength, and durability. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal material structure of the outer square tube of this utility model;

[0020] Figure 3 This is a schematic diagram of the limiting plate and connecting plate structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the outer isolation layer structure of this utility model.

[0022] In the diagram: 1. Enlarged steel pad; 2. Connecting bolt; 3. Connecting metal sleeve; 4. Outer square tube; 5. Base support; 6. Electric cylinder; 7. Top plate removal; 8. Limiting plate; 9. Lateral reinforcing plate; 10. Inner square tube; 11. Square steel cage; 12. Fine aggregate concrete; 13. Connecting disc; 14. Limiting sleeve; 15. Sliding rod; 16. Sliding hole; 17. Outer isolation layer. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] To significantly improve the overall strength, rigidity, and stability of the square tube, thereby enhancing its load-bearing capacity and bending moment resistance, the formwork system can be easily removed after the concrete has cured. It is highly practical and effective. Figure 1-4 As shown, the present invention provides a moment-resisting support square tube, comprising an enlarged steel pad 1, an outer square tube 4, an inner square tube 10, and a bottom support 5. The outer square tube 4 is fitted with the inner square tube 10, and fine stone concrete 12 is provided between the outer square tube 4 and the inner square tube 10. A square steel cage 11 is provided inside the fine stone concrete 12. The bottom support 5 is welded to the top of the outer square tube 4 and the inner square tube 10.

[0025] An electric cylinder 6 is installed at the top corner of the base 5 through a mounting hole. The output shaft of the electric cylinder 6 is connected to the drop plate 7 through a connecting plate 13 and bolts. Limiting plates 8 are installed at both ends of the base 5 through bolts, and the top of the limiting plate 8 has a sliding hole 16. A sliding rod 15 slides in the sliding hole 16. One end of the sliding rod 15 is connected to the drop plate 7 through a mounting hole, and the other end of the sliding rod 15 is fitted with a limiting sleeve 14.

[0026] When in use, the supporting square tube greatly improves the overall strength, rigidity and stability, enhances its load-bearing capacity, and has a significant effect in resisting bending moments. After the concrete has cured and formed, it is easy to remove the formwork system. It is highly practical and effective.

[0027] For example, such as Figure 1 , 2 As shown, the present invention also includes an enlarged steel pad 1 that is sleeved and connected to the bottom of the outer square tube 4 and the inner square tube 10 through a connecting metal sleeve 3, and a connecting bolt 2 is installed on the outer side of the connecting metal sleeve 3 through a screw hole.

[0028] When in use, the connecting metal sleeve 3 and connecting bolt 2 are used to facilitate the connection of the enlarged steel pad 1, thereby increasing the contact area with the base surface and allowing stress to diffuse.

[0029] For example, such as Figure 1As shown, the present invention also includes lateral reinforcing plates 9 welded at equal distances on both sides of the top end of the outer square tube 4, and the top of the lateral reinforcing plates 9 is welded to the base 5.

[0030] When in use, the side reinforcing plate 9 is used to improve the strength of the connection between the base 5 and the outer square tube 4, making it less prone to cracking and durable.

[0031] For example, such as Figure 1 , 2 As shown, the present invention also includes the fact that the unloading top plate 7, the bottom support 5, the outer square tube 4 and the inner square tube 10 are all made of carbon steel.

[0032] When in use, it has good toughness and weldability, high strength and hardness, and is suitable for structural components that bear large static loads.

[0033] For example, such as Figure 4 As shown, the present invention also includes an outer insulating layer 17 coated on the outer surface of the outer square tube 4, and the outer insulating layer 17 is specifically made of polytetrafluoroethylene material.

[0034] When in use, the PTFE material makes the outer surface of the square tube resistant to dirt and corrosion, with high coating strength, not easy to peel off, and durable.

[0035] In use, this utility model utilizes the connecting metal sleeve 3 and connecting bolt 2 to facilitate the connection of the enlarged steel pad 1, thereby increasing the contact area with the foundation surface, allowing stress to diffuse, and supporting the unloaded top plate 7 on the truss at the bottom of the formwork system.

[0036] Using the electric cylinder 6 to drive the unloading top plate 7 to move upward a certain distance, the template is lifted to form a certain pre-arch. The supporting square tube adopts a double-layer steel structure, and the space between is filled with fine stone concrete 12, which greatly improves the overall strength, rigidity and stability, improves its load-bearing capacity, and has a significant effect on resisting bending moment.

[0037] After the concrete has cured and set, the electric cylinder 6 is used to move the unloading top plate 7 downwards, which facilitates the removal of the formwork system. It is highly practical and effective. The square steel cage 11 increases the integrity of the fine stone concrete 12, which has good crack resistance, high shear strength, is not easily damaged, and is durable.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A moment-resisting square tube, characterized in that, It includes an enlarged steel pad (1), an outer square tube (4), an inner square tube (10) and a bottom support (5). The outer square tube (4) is fitted with an inner square tube (10) and fine stone concrete (12) is provided between the outer square tube (4) and the inner square tube (10). A square steel cage (11) is provided in the fine stone concrete (12). The bottom support (5) is welded to the top of the outer square tube (4) and the inner square tube (10). An electric cylinder (6) is installed at the top corner of the base (5) through a mounting hole. The output shaft of the electric cylinder (6) is connected to the drop plate (7) through a connecting plate (13) and bolts. Limiting plates (8) are installed at both ends of the base (5) through bolts, and a sliding hole (16) is provided at the top of the limiting plate (8). A sliding rod (15) slides in the sliding hole (16). One end of the sliding rod (15) is connected to the drop plate (7) through a mounting hole, and a limiting sleeve (14) is fitted on the other end of the sliding rod (15).

2. The moment-resisting square tube according to claim 1, characterized in that, The bottom of the outer square tube (4) and the inner square tube (10) are connected by an enlarged steel pad (1) through a connecting metal sleeve (3), and a connecting bolt (2) is installed on the outside of the connecting metal sleeve (3) through a screw hole.

3. The moment-resisting square tube according to claim 1, characterized in that, The outer square tube (4) has lateral reinforcing plates (9) welded at equal distances on both sides of its top end, and the top of the lateral reinforcing plates (9) is welded to the base (5).

4. The moment-resisting square tube according to claim 1, characterized in that, The unloading top plate (7), bottom support (5), outer square tube (4) and inner square tube (10) are all made of carbon steel.

5. The moment-resisting square tube according to claim 1, characterized in that, The outer surface of the outer square tube (4) is coated with an outer isolation layer (17), and the outer isolation layer (17) is specifically made of polytetrafluoroethylene material.

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