Square steel convenient to connect and insert
By designing a mirror-symmetrical L-shaped connector and using aluminothermic reaction filler weld iron, the problem of waste material during square steel cutting was solved, achieving higher material utilization and a more stable connection.
Patent Information
- Application Number
- CN202520530246.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-03-25
AI Technical Summary
The fixed length of existing square steel during the cutting process leads to waste, reduces material utilization, and increases costs.
A mirror-symmetrical L-shaped connector was designed, and a stable connection structure was formed by aluminothermic reaction filling welding iron and casting of molten iron, which enhances the connection stability and strength of the connector.
It reduces waste generated during cutting, improves material utilization, lowers costs, and enhances the tightness and stability of the connection.
Smart Images

Figure CN223767858U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stainless steel products technology, specifically to a square steel that is easy to connect. Background Technology
[0002] Square steel, a type of steel produced through pressure processing, is a material formed from steel ingots, billets, or finished steel through a series of processes to ultimately achieve various shapes, sizes, and specific properties. It plays a crucial role in national construction and is an indispensable material. Steel has extremely wide applications and comes in numerous varieties. Based on its cross-sectional shape, steel can generally be divided into four main categories: profiles, plates, pipes, and metal products.
[0003] Under current technological conditions, square steel typically needs to be cut to meet specific application requirements. However, since the length of finished square steel is fixed, waste is often generated during the cutting process due to dimensional limitations, leading to waste. This not only increases costs but also reduces material utilization. Therefore, we propose a square steel design that facilitates splicing. Utility Model Content
[0004] The purpose of this invention is to address the problem that square steel typically needs to be cut to meet specific usage requirements. However, since the length of finished square steel is fixed, waste often occurs during the cutting process due to size limitations, leading to waste. This not only increases costs but also reduces material utilization. This invention provides a square steel design that facilitates splicing.
[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution:
[0006] A square steel for easy insertion includes a square steel body, both ends of which are fixedly connected to plug connectors, and the plug connectors at both ends are arranged in a mirror symmetrical manner. The plug connectors on both sides are L-shaped structures with the outer ends bent inward, and the sum of the thicknesses of the outer ends of the plug connectors on both sides is less than the distance between the L-shaped bent section of the plug connector and the outer end of the square steel body. The gap between the plug connectors on both sides is filled with filler weld iron.
[0007] Furthermore, the inner wall of the outer end of the two plugs is provided with upper and lower reinforcing grooves, and the two sides of the filler weld iron are solidified with connecting protrusions corresponding to the upper and lower reinforcing grooves.
[0008] Furthermore, the outer end center of the square steel body is provided with left and right reinforcing grooves, and the left and right reinforcing grooves are arranged perpendicular to the upper and lower reinforcing grooves. Molten iron is poured into the left and right reinforcing grooves.
[0009] Furthermore, the outer end of the connector is fixedly connected with a snap-fit protrusion at the position corresponding to the left and right reinforcing grooves, and the thickness of the snap-fit protrusion is less than half the thickness of the filler weld iron.
[0010] The beneficial effects of this utility model are as follows:
[0011] 1. This utility model uses a connector to splice with another connector on a square steel body, allowing the L-shaped bends of the two connectors to interlock. Since the sum of the outer thicknesses of the connectors is less than the distance between the L-shaped bends of the connectors and the outer ends of the square steel body, a gap is formed between the connectors. Molten iron is poured in using an aluminothermic reaction to form a filler weld, which fills the gap between the two connectors, enhancing the stability of the connection. This further improves the tightness and stability of the connection, reduces waste generated during cutting after connecting the square steel, lowers costs, and greatly improves material utilization.
[0012] 2. The combination of the upper and lower reinforcing grooves and the connecting protrusions in this utility model limits the vertical movement of the two connectors, increasing the connection stability between the connectors and making the internal structure of the square steel connector more robust and reliable.
[0013] 3. After the splicing is completed, the present invention pours molten iron into the left and right reinforcing grooves, so that the molten iron solidifies to form an additional connecting structure, forming left and right limiting at the connection position of the square steel, which further enhances the connection strength between the square steel bodies. Attached Figure Description
[0014] Figure 1 This is a perspective view of the present invention;
[0015] Figure 2 This is a utility model Figure 1 Enlarged view of point A in the middle;
[0016] Figure 3 This is a top sectional view of the present invention;
[0017] Figure 4 This is a utility model Figure 3 Enlarged view of point B in the middle.
[0018] Reference numerals: 1. Square steel body; 2. Connector; 3. Filler weld iron; 4. Left and right reinforcing grooves; 5. Top and bottom reinforcing grooves; 6. Snap-fit protrusion. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.
[0020] Please see Figure 1 - Figure 4 This utility model provides a square steel that is easy to connect, including a square steel body 1. Both ends of the square steel body 1 are fixedly connected to a connector 2, and the connectors 2 at both ends are arranged in a mirror symmetrical manner. The connectors 2 on both sides are L-shaped structures with the outer ends bent inward. The sum of the thicknesses of the outer ends of the connectors 2 on both sides is less than the distance between the L-shaped bent section of the connector 2 and the outer end of the square steel body 1. The gap between the connectors 2 on both sides is filled with filler iron 3.
[0021] In this embodiment, preferably, the inner sidewall of the outer end of the two plugs 2 is provided with upper and lower reinforcing grooves 5, and the two sides of the filler weld iron 3 are solidified with connecting protrusions corresponding to the upper and lower reinforcing grooves 5. The cooperation between the upper and lower reinforcing grooves 5 and the connecting protrusions limits the vertical movement of the two plugs 2 at the connection position, increases the connection stability between the plugs 2, and makes the internal structure of the square steel plug connection position more robust and reliable.
[0022] In this embodiment, preferably, the outer end center of the square steel body 1 is provided with left and right reinforcing grooves 4, and the left and right reinforcing grooves 4 are arranged perpendicular to the upper and lower reinforcing grooves 5. The left and right reinforcing grooves 4 are filled with connecting molten iron. After the splicing is completed, by pouring connecting molten iron into the left and right reinforcing grooves 4, the connecting molten iron solidifies to form an additional connecting structure, forming a left and right limit at the connection position of the square steel, further enhancing the connection strength between the square steel bodies 1.
[0023] In this embodiment, preferably, the outer end of the connector 2 is fixedly connected with a snap-fit protrusion 6 corresponding to the left and right reinforcing grooves 4, and the thickness of the snap-fit protrusion 6 is less than half the thickness of the filler weld iron 3; the snap-fit cooperation between the snap-fit protrusion 6 and the reinforcing groove 4 improves the strength of the left and right limiting structure, and also improves the structural strength of the connection between the outer end of the connector 2 and the mating surface.
[0024] The working principle and usage process of this utility model are as follows: When in use, the device is spliced with the connector 2 of another section of square steel body 1, causing the L-shaped bends of the two connectors 2 to interlock. Since the sum of the outer thicknesses of the connectors 2 is less than the distance between the L-shaped bends of the connectors 2 and the outer ends of the square steel body 1, a gap is formed between the connectors 2. Molten iron is then poured in using an aluminothermic reaction to form a filler weld 3. This filler weld 3 fills the gap between the two connectors 2, enhancing the stability of the connection. This further improves the tightness and stability of the connection, reduces waste generated during cutting after connecting the square steel, reduces costs, and greatly improves material utilization.
[0025] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A square steel for facilitating connection, characterized by: Including square steel body (1), both ends of square steel body (1) are fixedly connected with plug-in connector (2), and both ends of plug-in connector (2) are mirror-symmetrically arranged, both sides of plug-in connector (2) are L-shaped structure with outer end inwardly bent, and the sum of the thicknesses of the outer ends of both sides of plug-in connector (2) is less than the distance between the L-shaped bent section of plug-in connector (2) and the outer end of square steel body (1), and the gap between both sides of plug-in connector (2) is filled with filler welding iron (3).
2. The square steel of claim 1, wherein: The inside wall of the outer end of both sides of plug-in connector (2) is provided with upper and lower reinforcing grooves (5) in the center, and the filler welding iron (3) is solidified and formed with connecting convex strips on both sides corresponding to the positions of the upper and lower reinforcing grooves (5).
3. The square steel of claim 1, wherein: The outer end center of the square steel body (1) is provided with left and right reinforcing grooves (4), and the left and right reinforcing grooves (4) are perpendicular to the upper and lower reinforcing grooves (5), and the left and right reinforcing grooves (4) are poured with connecting molten iron.
4. The square steel of claim 3, wherein: The outer end of the plug-in connector (2) is fixedly connected with the clamping convex strip (6) corresponding to the position of the left and right reinforcing grooves (4), and the thickness of the clamping convex strip (6) is less than half of the thickness of the filler welding iron (3).